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1 | /* this works around a bug in mingw32 providing a non-working setjmp */ |
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2 | #define USE_NO_MINGW_SETJMP_TWO_ARGS |
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3 | |
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4 | #define NDEBUG 1 /* perl usually disables NDEBUG later */ |
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5 | |
1 | #include "libcoro/coro.c" |
6 | #include "libcoro/coro.c" |
2 | |
7 | |
3 | #define PERL_NO_GET_CONTEXT |
8 | #define PERL_NO_GET_CONTEXT |
4 | #define PERL_EXT |
9 | #define PERL_EXT |
5 | |
10 | |
6 | #include "EXTERN.h" |
11 | #include "EXTERN.h" |
7 | #include "perl.h" |
12 | #include "perl.h" |
8 | #include "XSUB.h" |
13 | #include "XSUB.h" |
9 | #include "perliol.h" |
14 | #include "perliol.h" |
10 | |
15 | |
11 | #include "patchlevel.h" |
16 | #include "schmorp.h" |
12 | |
17 | |
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18 | #define ECB_NO_THREADS 1 |
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19 | #define ECB_NO_LIBM 1 |
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20 | #include "ecb.h" |
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21 | |
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22 | #include <stddef.h> |
13 | #include <stdio.h> |
23 | #include <stdio.h> |
14 | #include <errno.h> |
24 | #include <errno.h> |
15 | #include <assert.h> |
25 | #include <assert.h> |
16 | |
26 | |
17 | #ifdef WIN32 |
27 | #ifndef SVs_PADSTALE |
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28 | # define SVs_PADSTALE 0 |
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29 | #endif |
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30 | |
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31 | #ifdef PadARRAY |
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32 | # define NEWPADAPI 1 |
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33 | # define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *)) |
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34 | #else |
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35 | typedef AV PADNAMELIST; |
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36 | # if !PERL_VERSION_ATLEAST(5,8,0) |
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37 | typedef AV PADLIST; |
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38 | typedef AV PAD; |
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39 | # endif |
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40 | # define PadlistARRAY(pl) ((PAD **)AvARRAY (pl)) |
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41 | # define PadlistMAX(pl) AvFILLp (pl) |
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42 | # define PadlistNAMES(pl) (*PadlistARRAY (pl)) |
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43 | # define PadARRAY AvARRAY |
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44 | # define PadMAX AvFILLp |
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45 | # define newPADLIST(var) ((var) = newAV (), av_extend (var, 1)) |
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46 | #endif |
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47 | #ifndef PadnamelistREFCNT |
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48 | # define PadnamelistREFCNT(pnl) SvREFCNT (pnl) |
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49 | #endif |
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50 | #ifndef PadnamelistREFCNT_dec |
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51 | # define PadnamelistREFCNT_dec(pnl) SvREFCNT_dec (pnl) |
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52 | #endif |
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53 | |
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54 | /* 5.19.something has replaced SVt_BIND by SVt_INVLIST */ |
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55 | /* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */ |
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56 | #if PERL_VERSION_ATLEAST(5,19,0) |
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57 | # define SVt_BIND SVt_IV |
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58 | #endif |
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59 | |
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60 | #if defined(_WIN32) |
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61 | # undef HAS_GETTIMEOFDAY |
18 | # undef setjmp |
62 | # undef setjmp |
19 | # undef longjmp |
63 | # undef longjmp |
20 | # undef _exit |
64 | # undef _exit |
21 | # define setjmp _setjmp // deep magic, don't ask |
65 | # define setjmp _setjmp /* deep magic */ |
22 | #else |
66 | #else |
23 | # include <inttypes.h> /* most portable stdint.h */ |
67 | # include <inttypes.h> /* most portable stdint.h */ |
24 | #endif |
68 | #endif |
25 | |
69 | |
26 | #ifdef HAVE_MMAP |
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27 | # include <unistd.h> |
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28 | # include <sys/mman.h> |
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29 | # ifndef MAP_ANONYMOUS |
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30 | # ifdef MAP_ANON |
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31 | # define MAP_ANONYMOUS MAP_ANON |
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32 | # else |
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33 | # undef HAVE_MMAP |
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34 | # endif |
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35 | # endif |
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36 | # include <limits.h> |
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37 | # ifndef PAGESIZE |
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38 | # define PAGESIZE pagesize |
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39 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
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40 | static long pagesize; |
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41 | # else |
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42 | # define BOOT_PAGESIZE (void)0 |
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43 | # endif |
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44 | #else |
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45 | # define PAGESIZE 0 |
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46 | # define BOOT_PAGESIZE (void)0 |
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47 | #endif |
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48 | |
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49 | #if CORO_USE_VALGRIND |
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50 | # include <valgrind/valgrind.h> |
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51 | #endif |
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52 | |
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53 | /* the maximum number of idle cctx that will be pooled */ |
70 | /* the maximum number of idle cctx that will be pooled */ |
54 | static int cctx_max_idle = 4; |
71 | static int cctx_max_idle = 4; |
55 | |
72 | |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
73 | #if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0) |
57 | (PERL_REVISION > (a) \ |
74 | # define HAS_SCOPESTACK_NAME 1 |
58 | || (PERL_REVISION == (a) \ |
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59 | && (PERL_VERSION > (b) \ |
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60 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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61 | |
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62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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63 | # ifndef PL_ppaddr |
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64 | # define PL_ppaddr ppaddr |
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65 | # endif |
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66 | # ifndef call_sv |
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67 | # define call_sv perl_call_sv |
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68 | # endif |
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69 | # ifndef get_sv |
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70 | # define get_sv perl_get_sv |
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71 | # endif |
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72 | # ifndef get_cv |
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73 | # define get_cv perl_get_cv |
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74 | # endif |
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75 | # ifndef IS_PADGV |
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76 | # define IS_PADGV(v) 0 |
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77 | # endif |
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78 | # ifndef IS_PADCONST |
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79 | # define IS_PADCONST(v) 0 |
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80 | # endif |
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81 | #endif |
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82 | |
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83 | /* 5.11 */ |
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84 | #ifndef CxHASARGS |
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85 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
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86 | #endif |
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87 | |
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88 | /* 5.10.0 */ |
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89 | #ifndef SvREFCNT_inc_NN |
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90 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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91 | #endif |
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92 | |
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93 | /* 5.8.8 */ |
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94 | #ifndef GV_NOTQUAL |
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95 | # define GV_NOTQUAL 0 |
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96 | #endif |
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97 | #ifndef newSV |
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98 | # define newSV(l) NEWSV(0,l) |
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99 | #endif |
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100 | |
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101 | /* 5.8.7 */ |
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102 | #ifndef SvRV_set |
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103 | # define SvRV_set(s,v) SvRV(s) = (v) |
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104 | #endif |
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105 | |
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106 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
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107 | # undef CORO_STACKGUARD |
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108 | #endif |
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109 | |
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110 | #ifndef CORO_STACKGUARD |
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111 | # define CORO_STACKGUARD 0 |
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112 | #endif |
75 | #endif |
113 | |
76 | |
114 | /* prefer perl internal functions over our own? */ |
77 | /* prefer perl internal functions over our own? */ |
115 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
78 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
116 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
79 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
117 | #endif |
80 | #endif |
118 | |
81 | |
119 | /* The next macros try to return the current stack pointer, in an as |
82 | /* The next macros try to return the current stack pointer, in an as |
120 | * portable way as possible. */ |
83 | * portable way as possible. */ |
121 | #define dSTACKLEVEL volatile char stacklevel |
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122 | #define STACKLEVEL ((void *)&stacklevel) |
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123 | |
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124 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
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125 | |
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126 | #if __GNUC__ >= 3 |
84 | #if __GNUC__ >= 4 |
127 | # define attribute(x) __attribute__(x) |
85 | # define dSTACKLEVEL int stacklevel_dummy |
128 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
86 | # define STACKLEVEL __builtin_frame_address (0) |
129 | # define INLINE static inline |
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130 | #else |
87 | #else |
131 | # define attribute(x) |
88 | # define dSTACKLEVEL volatile void *stacklevel |
132 | # define expect(expr,value) (expr) |
89 | # define STACKLEVEL ((void *)&stacklevel) |
133 | # define INLINE static |
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134 | #endif |
90 | #endif |
135 | |
91 | |
136 | #define expect_false(expr) expect ((expr) != 0, 0) |
92 | #define IN_DESTRUCT PL_dirty |
137 | #define expect_true(expr) expect ((expr) != 0, 1) |
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138 | |
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139 | #define NOINLINE attribute ((noinline)) |
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140 | |
93 | |
141 | #include "CoroAPI.h" |
94 | #include "CoroAPI.h" |
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95 | #define GCoroAPI (&coroapi) /* very sneaky */ |
142 | |
96 | |
143 | #ifdef USE_ITHREADS |
97 | #ifdef USE_ITHREADS |
144 | |
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145 | static perl_mutex coro_lock; |
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146 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
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147 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
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148 | # if CORO_PTHREAD |
98 | # if CORO_PTHREAD |
149 | static void *coro_thx; |
99 | static void *coro_thx; |
150 | # endif |
100 | # endif |
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101 | #endif |
151 | |
102 | |
152 | #else |
103 | #ifdef __linux |
153 | |
104 | # include <time.h> /* for timespec */ |
154 | # define LOCK (void)0 |
105 | # include <syscall.h> /* for SYS_* */ |
155 | # define UNLOCK (void)0 |
106 | # ifdef SYS_clock_gettime |
156 | |
107 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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108 | # define CORO_CLOCK_MONOTONIC 1 |
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109 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
157 | #endif |
110 | # endif |
158 | |
111 | #endif |
159 | # undef LOCK |
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160 | # define LOCK (void)0 |
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161 | # undef UNLOCK |
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162 | # define UNLOCK (void)0 |
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163 | |
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164 | /* helper storage struct for Coro::AIO */ |
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165 | struct io_state |
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166 | { |
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167 | AV *res; |
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168 | int errorno; |
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169 | I32 laststype; /* U16 in 5.10.0 */ |
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170 | int laststatval; |
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171 | Stat_t statcache; |
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172 | }; |
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173 | |
112 | |
174 | static double (*nvtime)(); /* so why doesn't it take void? */ |
113 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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114 | static void (*u2time)(pTHX_ UV ret[2]); |
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115 | |
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116 | /* we hijack an hopefully unused CV flag for our purposes */ |
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117 | #define CVf_SLF 0x4000 |
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118 | static OP *pp_slf (pTHX); |
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119 | static void slf_destroy (pTHX_ struct coro *coro); |
175 | |
120 | |
176 | static U32 cctx_gen; |
121 | static U32 cctx_gen; |
177 | static size_t cctx_stacksize = CORO_STACKSIZE; |
122 | static size_t cctx_stacksize = CORO_STACKSIZE; |
178 | static struct CoroAPI coroapi; |
123 | static struct CoroAPI coroapi; |
179 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
124 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
180 | static JMPENV *main_top_env; |
125 | static JMPENV *main_top_env; |
181 | static HV *coro_state_stash, *coro_stash; |
126 | static HV *coro_state_stash, *coro_stash; |
182 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
127 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
183 | static volatile struct coro *transfer_next; |
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184 | |
128 | |
185 | struct transfer_args |
129 | static AV *av_destroy; /* destruction queue */ |
186 | { |
130 | static SV *sv_manager; /* the manager coro */ |
187 | struct coro *prev, *next; |
131 | static SV *sv_idle; /* $Coro::idle */ |
188 | }; |
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189 | |
132 | |
190 | static GV *irsgv; /* $/ */ |
133 | static GV *irsgv; /* $/ */ |
191 | static GV *stdoutgv; /* *STDOUT */ |
134 | static GV *stdoutgv; /* *STDOUT */ |
192 | static SV *rv_diehook; |
135 | static SV *rv_diehook; |
193 | static SV *rv_warnhook; |
136 | static SV *rv_warnhook; |
194 | static HV *hv_sig; /* %SIG */ |
137 | static HV *hv_sig; /* %SIG */ |
195 | |
138 | |
196 | /* async_pool helper stuff */ |
139 | /* async_pool helper stuff */ |
197 | static SV *sv_pool_rss; |
140 | static SV *sv_pool_rss; |
198 | static SV *sv_pool_size; |
141 | static SV *sv_pool_size; |
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142 | static SV *sv_async_pool_idle; /* description string */ |
199 | static AV *av_async_pool; |
143 | static AV *av_async_pool; /* idle pool */ |
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144 | static SV *sv_Coro; /* class string */ |
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145 | static CV *cv_pool_handler; |
200 | |
146 | |
201 | /* Coro::AnyEvent */ |
147 | /* Coro::AnyEvent */ |
202 | static SV *sv_activity; |
148 | static SV *sv_activity; |
203 | |
149 | |
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150 | /* enable processtime/realtime profiling */ |
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151 | static char enable_times; |
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152 | typedef U32 coro_ts[2]; |
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153 | static coro_ts time_real, time_cpu; |
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154 | static char times_valid; |
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155 | |
204 | static struct coro_cctx *cctx_first; |
156 | static struct coro_cctx *cctx_first; |
205 | static int cctx_count, cctx_idle; |
157 | static int cctx_count, cctx_idle; |
206 | |
158 | |
207 | enum { |
159 | enum |
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160 | { |
208 | CC_MAPPED = 0x01, |
161 | CC_MAPPED = 0x01, |
209 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
162 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
210 | CC_TRACE = 0x04, |
163 | CC_TRACE = 0x04, |
211 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
164 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
212 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
165 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
213 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
166 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
214 | }; |
167 | }; |
215 | |
168 | |
216 | /* this is a structure representing a c-level coroutine */ |
169 | /* this is a structure representing a c-level coroutine */ |
217 | typedef struct coro_cctx { |
170 | typedef struct coro_cctx |
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171 | { |
218 | struct coro_cctx *next; |
172 | struct coro_cctx *next; |
219 | |
173 | |
220 | /* the stack */ |
174 | /* the stack */ |
221 | void *sptr; |
175 | struct coro_stack stack; |
222 | size_t ssize; |
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223 | |
176 | |
224 | /* cpu state */ |
177 | /* cpu state */ |
225 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
178 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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179 | #ifndef NDEBUG |
226 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
180 | JMPENV *idle_te; /* same as idle_sp, but for top_env */ |
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181 | #endif |
227 | JMPENV *top_env; |
182 | JMPENV *top_env; |
228 | coro_context cctx; |
183 | coro_context cctx; |
229 | |
184 | |
230 | U32 gen; |
185 | U32 gen; |
231 | #if CORO_USE_VALGRIND |
186 | #if CORO_USE_VALGRIND |
232 | int valgrind_id; |
187 | int valgrind_id; |
233 | #endif |
188 | #endif |
234 | unsigned char flags; |
189 | unsigned char flags; |
235 | } coro_cctx; |
190 | } coro_cctx; |
236 | |
191 | |
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192 | static coro_cctx *cctx_current; /* the currently running cctx */ |
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193 | |
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194 | /*****************************************************************************/ |
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195 | |
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196 | static MGVTBL coro_state_vtbl; |
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197 | |
237 | enum { |
198 | enum |
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199 | { |
238 | CF_RUNNING = 0x0001, /* coroutine is running */ |
200 | CF_RUNNING = 0x0001, /* coroutine is running */ |
239 | CF_READY = 0x0002, /* coroutine is ready */ |
201 | CF_READY = 0x0002, /* coroutine is ready */ |
240 | CF_NEW = 0x0004, /* has never been switched to */ |
202 | CF_NEW = 0x0004, /* has never been switched to */ |
241 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
203 | CF_ZOMBIE = 0x0008, /* coroutine data has been freed */ |
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204 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
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205 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
242 | }; |
206 | }; |
243 | |
207 | |
244 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
208 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
245 | typedef struct { |
209 | typedef struct |
246 | SV *defsv; |
210 | { |
247 | AV *defav; |
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248 | SV *errsv; |
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249 | SV *irsgv; |
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250 | #define VAR(name,type) type name; |
211 | #define VARx(name,expr,type) type name; |
251 | # include "state.h" |
212 | #include "state.h" |
252 | #undef VAR |
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253 | } perl_slots; |
213 | } perl_slots; |
254 | |
214 | |
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215 | /* how many context stack entries do we need for perl_slots */ |
255 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
216 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
256 | |
217 | |
257 | /* this is a structure representing a perl-level coroutine */ |
218 | /* this is a structure representing a perl-level coroutine */ |
258 | struct coro { |
219 | struct coro |
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220 | { |
259 | /* the c coroutine allocated to this perl coroutine, if any */ |
221 | /* the C coroutine allocated to this perl coroutine, if any */ |
260 | coro_cctx *cctx; |
222 | coro_cctx *cctx; |
261 | |
223 | |
262 | /* process data */ |
224 | /* ready queue */ |
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225 | struct coro *next_ready; |
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226 | |
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227 | /* state data */ |
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228 | struct CoroSLF slf_frame; /* saved slf frame */ |
263 | AV *mainstack; |
229 | AV *mainstack; |
264 | perl_slots *slot; /* basically the saved sp */ |
230 | perl_slots *slot; /* basically the saved sp */ |
265 | |
231 | |
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232 | CV *startcv; /* the CV to execute */ |
266 | AV *args; /* data associated with this coroutine (initial args) */ |
233 | AV *args; /* data associated with this coroutine (initial args) */ |
267 | int refcnt; /* coroutines are refcounted, yes */ |
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268 | int flags; /* CF_ flags */ |
234 | int flags; /* CF_ flags */ |
269 | HV *hv; /* the perl hash associated with this coro, if any */ |
235 | HV *hv; /* the perl hash associated with this coro, if any */ |
270 | |
236 | |
271 | /* statistics */ |
237 | /* statistics */ |
272 | int usecount; /* number of transfers to this coro */ |
238 | int usecount; /* number of transfers to this coro */ |
273 | |
239 | |
274 | /* coro process data */ |
240 | /* coro process data */ |
275 | int prio; |
241 | int prio; |
276 | SV *throw; /* exception to be thrown */ |
242 | SV *except; /* exception to be thrown */ |
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243 | SV *rouse_cb; /* last rouse callback */ |
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244 | AV *on_destroy; /* callbacks or coros to notify on destroy */ |
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245 | AV *status; /* the exit status list */ |
277 | |
246 | |
278 | /* async_pool */ |
247 | /* async_pool */ |
279 | SV *saved_deffh; |
248 | SV *saved_deffh; |
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249 | SV *invoke_cb; |
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250 | AV *invoke_av; |
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251 | |
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252 | /* on_enter/on_leave */ |
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253 | AV *on_enter; |
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254 | AV *on_leave; |
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255 | |
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256 | /* swap_sv */ |
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257 | AV *swap_sv; |
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258 | |
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259 | /* times */ |
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260 | coro_ts t_cpu, t_real; |
280 | |
261 | |
281 | /* linked list */ |
262 | /* linked list */ |
282 | struct coro *next, *prev; |
263 | struct coro *next, *prev; |
283 | }; |
264 | }; |
284 | |
265 | |
285 | typedef struct coro *Coro__State; |
266 | typedef struct coro *Coro__State; |
286 | typedef struct coro *Coro__State_or_hashref; |
267 | typedef struct coro *Coro__State_or_hashref; |
287 | |
268 | |
|
|
269 | /* the following variables are effectively part of the perl context */ |
|
|
270 | /* and get copied between struct coro and these variables */ |
|
|
271 | /* the main reason we don't support windows process emulation */ |
|
|
272 | static struct CoroSLF slf_frame; /* the current slf frame */ |
|
|
273 | |
288 | /** Coro ********************************************************************/ |
274 | /** Coro ********************************************************************/ |
289 | |
275 | |
290 | #define PRIO_MAX 3 |
276 | #define CORO_PRIO_MAX 3 |
291 | #define PRIO_HIGH 1 |
277 | #define CORO_PRIO_HIGH 1 |
292 | #define PRIO_NORMAL 0 |
278 | #define CORO_PRIO_NORMAL 0 |
293 | #define PRIO_LOW -1 |
279 | #define CORO_PRIO_LOW -1 |
294 | #define PRIO_IDLE -3 |
280 | #define CORO_PRIO_IDLE -3 |
295 | #define PRIO_MIN -4 |
281 | #define CORO_PRIO_MIN -4 |
296 | |
282 | |
297 | /* for Coro.pm */ |
283 | /* for Coro.pm */ |
298 | static SV *coro_current; |
284 | static SV *coro_current; |
299 | static SV *coro_readyhook; |
285 | static SV *coro_readyhook; |
300 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
286 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
301 | static int coro_nready; |
287 | static CV *cv_coro_run; |
302 | static struct coro *coro_first; |
288 | static struct coro *coro_first; |
|
|
289 | #define coro_nready coroapi.nready |
|
|
290 | |
|
|
291 | /** JIT *********************************************************************/ |
|
|
292 | |
|
|
293 | #if CORO_JIT |
|
|
294 | /* APPLE doesn't have mmap though */ |
|
|
295 | #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__) |
|
|
296 | #ifndef CORO_JIT_TYPE |
|
|
297 | #if ECB_AMD64 && CORO_JIT_UNIXY |
|
|
298 | #define CORO_JIT_TYPE "amd64-unix" |
|
|
299 | #elif __i386 && CORO_JIT_UNIXY |
|
|
300 | #define CORO_JIT_TYPE "x86-unix" |
|
|
301 | #endif |
|
|
302 | #endif |
|
|
303 | #endif |
|
|
304 | |
|
|
305 | #if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0 |
|
|
306 | #undef CORO_JIT |
|
|
307 | #endif |
|
|
308 | |
|
|
309 | #if CORO_JIT |
|
|
310 | typedef void (*load_save_perl_slots_type)(perl_slots *); |
|
|
311 | static load_save_perl_slots_type load_perl_slots, save_perl_slots; |
|
|
312 | #endif |
|
|
313 | |
|
|
314 | /** Coro::Select ************************************************************/ |
|
|
315 | |
|
|
316 | static OP *(*coro_old_pp_sselect) (pTHX); |
|
|
317 | static SV *coro_select_select; |
|
|
318 | |
|
|
319 | /* horrible hack, but if it works... */ |
|
|
320 | static OP * |
|
|
321 | coro_pp_sselect (pTHX) |
|
|
322 | { |
|
|
323 | dSP; |
|
|
324 | PUSHMARK (SP - 4); /* fake argument list */ |
|
|
325 | XPUSHs (coro_select_select); |
|
|
326 | PUTBACK; |
|
|
327 | |
|
|
328 | /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ |
|
|
329 | PL_op->op_flags |= OPf_STACKED; |
|
|
330 | PL_op->op_private = 0; |
|
|
331 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
|
|
332 | } |
|
|
333 | |
|
|
334 | /** time stuff **************************************************************/ |
|
|
335 | |
|
|
336 | #ifdef HAS_GETTIMEOFDAY |
|
|
337 | |
|
|
338 | ecb_inline void |
|
|
339 | coro_u2time (pTHX_ UV ret[2]) |
|
|
340 | { |
|
|
341 | struct timeval tv; |
|
|
342 | gettimeofday (&tv, 0); |
|
|
343 | |
|
|
344 | ret [0] = tv.tv_sec; |
|
|
345 | ret [1] = tv.tv_usec; |
|
|
346 | } |
|
|
347 | |
|
|
348 | ecb_inline double |
|
|
349 | coro_nvtime (void) |
|
|
350 | { |
|
|
351 | struct timeval tv; |
|
|
352 | gettimeofday (&tv, 0); |
|
|
353 | |
|
|
354 | return tv.tv_sec + tv.tv_usec * 1e-6; |
|
|
355 | } |
|
|
356 | |
|
|
357 | ecb_inline void |
|
|
358 | time_init (pTHX) |
|
|
359 | { |
|
|
360 | nvtime = coro_nvtime; |
|
|
361 | u2time = coro_u2time; |
|
|
362 | } |
|
|
363 | |
|
|
364 | #else |
|
|
365 | |
|
|
366 | ecb_inline void |
|
|
367 | time_init (pTHX) |
|
|
368 | { |
|
|
369 | SV **svp; |
|
|
370 | |
|
|
371 | require_pv ("Time/HiRes.pm"); |
|
|
372 | |
|
|
373 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
374 | |
|
|
375 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
|
|
376 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
|
|
377 | |
|
|
378 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
379 | |
|
|
380 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
|
|
381 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
|
|
382 | } |
|
|
383 | |
|
|
384 | #endif |
303 | |
385 | |
304 | /** lowlevel stuff **********************************************************/ |
386 | /** lowlevel stuff **********************************************************/ |
305 | |
387 | |
306 | static SV * |
388 | static SV * ecb_noinline |
307 | coro_get_sv (pTHX_ const char *name, int create) |
389 | coro_get_sv (pTHX_ const char *name, int create) |
308 | { |
390 | { |
309 | #if PERL_VERSION_ATLEAST (5,10,0) |
391 | #if PERL_VERSION_ATLEAST (5,10,0) |
310 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
392 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
311 | get_sv (name, create); |
393 | get_sv (name, create); |
312 | #endif |
394 | #endif |
313 | return get_sv (name, create); |
395 | return get_sv (name, create); |
314 | } |
396 | } |
315 | |
397 | |
316 | static AV * |
398 | static AV * ecb_noinline |
317 | coro_get_av (pTHX_ const char *name, int create) |
399 | coro_get_av (pTHX_ const char *name, int create) |
318 | { |
400 | { |
319 | #if PERL_VERSION_ATLEAST (5,10,0) |
401 | #if PERL_VERSION_ATLEAST (5,10,0) |
320 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
402 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
321 | get_av (name, create); |
403 | get_av (name, create); |
322 | #endif |
404 | #endif |
323 | return get_av (name, create); |
405 | return get_av (name, create); |
324 | } |
406 | } |
325 | |
407 | |
326 | static HV * |
408 | static HV * ecb_noinline |
327 | coro_get_hv (pTHX_ const char *name, int create) |
409 | coro_get_hv (pTHX_ const char *name, int create) |
328 | { |
410 | { |
329 | #if PERL_VERSION_ATLEAST (5,10,0) |
411 | #if PERL_VERSION_ATLEAST (5,10,0) |
330 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
412 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
331 | get_hv (name, create); |
413 | get_hv (name, create); |
332 | #endif |
414 | #endif |
333 | return get_hv (name, create); |
415 | return get_hv (name, create); |
334 | } |
416 | } |
335 | |
417 | |
336 | static AV * |
418 | ecb_inline void |
|
|
419 | coro_times_update (void) |
|
|
420 | { |
|
|
421 | #ifdef coro_clock_gettime |
|
|
422 | struct timespec ts; |
|
|
423 | |
|
|
424 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
425 | coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts); |
|
|
426 | time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec; |
|
|
427 | |
|
|
428 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
429 | coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); |
|
|
430 | time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; |
|
|
431 | #else |
|
|
432 | dTHX; |
|
|
433 | UV tv[2]; |
|
|
434 | |
|
|
435 | u2time (aTHX_ tv); |
|
|
436 | time_real [0] = tv [0]; |
|
|
437 | time_real [1] = tv [1] * 1000; |
|
|
438 | #endif |
|
|
439 | } |
|
|
440 | |
|
|
441 | ecb_inline void |
|
|
442 | coro_times_add (struct coro *c) |
|
|
443 | { |
|
|
444 | c->t_real [1] += time_real [1]; |
|
|
445 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
|
|
446 | c->t_real [0] += time_real [0]; |
|
|
447 | |
|
|
448 | c->t_cpu [1] += time_cpu [1]; |
|
|
449 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
|
|
450 | c->t_cpu [0] += time_cpu [0]; |
|
|
451 | } |
|
|
452 | |
|
|
453 | ecb_inline void |
|
|
454 | coro_times_sub (struct coro *c) |
|
|
455 | { |
|
|
456 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
|
|
457 | c->t_real [1] -= time_real [1]; |
|
|
458 | c->t_real [0] -= time_real [0]; |
|
|
459 | |
|
|
460 | if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; } |
|
|
461 | c->t_cpu [1] -= time_cpu [1]; |
|
|
462 | c->t_cpu [0] -= time_cpu [0]; |
|
|
463 | } |
|
|
464 | |
|
|
465 | /*****************************************************************************/ |
|
|
466 | /* magic glue */ |
|
|
467 | |
|
|
468 | #define CORO_MAGIC_type_cv 26 |
|
|
469 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
470 | |
|
|
471 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
472 | (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
473 | ? SvMAGIC (sv) \ |
|
|
474 | : mg_find (sv, type)) |
|
|
475 | |
|
|
476 | #define CORO_MAGIC(sv, type) \ |
|
|
477 | (ecb_expect_true (SvMAGIC (sv)) \ |
|
|
478 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
479 | : 0) |
|
|
480 | |
|
|
481 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
482 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
483 | |
|
|
484 | ecb_inline MAGIC * |
|
|
485 | SvSTATEhv_p (pTHX_ SV *coro) |
|
|
486 | { |
|
|
487 | MAGIC *mg; |
|
|
488 | |
|
|
489 | if (ecb_expect_true ( |
|
|
490 | SvTYPE (coro) == SVt_PVHV |
|
|
491 | && (mg = CORO_MAGIC_state (coro)) |
|
|
492 | && mg->mg_virtual == &coro_state_vtbl |
|
|
493 | )) |
|
|
494 | return mg; |
|
|
495 | |
|
|
496 | return 0; |
|
|
497 | } |
|
|
498 | |
|
|
499 | ecb_inline struct coro * |
|
|
500 | SvSTATE_ (pTHX_ SV *coro) |
|
|
501 | { |
|
|
502 | MAGIC *mg; |
|
|
503 | |
|
|
504 | if (SvROK (coro)) |
|
|
505 | coro = SvRV (coro); |
|
|
506 | |
|
|
507 | mg = SvSTATEhv_p (aTHX_ coro); |
|
|
508 | if (!mg) |
|
|
509 | croak ("Coro::State object required"); |
|
|
510 | |
|
|
511 | return (struct coro *)mg->mg_ptr; |
|
|
512 | } |
|
|
513 | |
|
|
514 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
515 | |
|
|
516 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
517 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
518 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
519 | |
|
|
520 | /*****************************************************************************/ |
|
|
521 | /* padlist management and caching */ |
|
|
522 | |
|
|
523 | ecb_inline PADLIST * |
337 | coro_clone_padlist (pTHX_ CV *cv) |
524 | coro_derive_padlist (pTHX_ CV *cv) |
338 | { |
525 | { |
339 | AV *padlist = CvPADLIST (cv); |
526 | PADLIST *padlist = CvPADLIST (cv); |
340 | AV *newpadlist, *newpad; |
527 | PADLIST *newpadlist; |
|
|
528 | PADNAMELIST *padnames; |
|
|
529 | PAD *newpad; |
|
|
530 | PADOFFSET off = PadlistMAX (padlist) + 1; |
341 | |
531 | |
342 | newpadlist = newAV (); |
532 | #if NEWPADAPI |
|
|
533 | |
|
|
534 | /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */ |
|
|
535 | /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */ |
|
|
536 | while (!PadlistARRAY (padlist)[off - 1]) |
|
|
537 | --off; |
|
|
538 | |
|
|
539 | Perl_pad_push (aTHX_ padlist, off); |
|
|
540 | |
|
|
541 | newpad = PadlistARRAY (padlist)[off]; |
|
|
542 | PadlistARRAY (padlist)[off] = 0; |
|
|
543 | |
|
|
544 | #else |
|
|
545 | |
|
|
546 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
547 | Perl_pad_push (aTHX_ padlist, off); |
|
|
548 | #else |
|
|
549 | Perl_pad_push (aTHX_ padlist, off, 1); |
|
|
550 | #endif |
|
|
551 | |
|
|
552 | newpad = PadlistARRAY (padlist)[off]; |
|
|
553 | PadlistMAX (padlist) = off - 1; |
|
|
554 | |
|
|
555 | #endif |
|
|
556 | |
|
|
557 | newPADLIST (newpadlist); |
|
|
558 | #if !PERL_VERSION_ATLEAST(5,15,3) |
|
|
559 | /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */ |
343 | AvREAL_off (newpadlist); |
560 | AvREAL_off (newpadlist); |
344 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
345 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
|
|
346 | #else |
|
|
347 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
|
|
348 | #endif |
561 | #endif |
349 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
|
|
350 | --AvFILLp (padlist); |
|
|
351 | |
562 | |
352 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
563 | /* Already extended to 2 elements by newPADLIST. */ |
353 | av_store (newpadlist, 1, (SV *)newpad); |
564 | PadlistMAX (newpadlist) = 1; |
|
|
565 | |
|
|
566 | padnames = PadlistNAMES (padlist); |
|
|
567 | ++PadnamelistREFCNT (padnames); |
|
|
568 | PadlistNAMES (newpadlist) = padnames; |
|
|
569 | |
|
|
570 | PadlistARRAY (newpadlist)[1] = newpad; |
354 | |
571 | |
355 | return newpadlist; |
572 | return newpadlist; |
356 | } |
573 | } |
357 | |
574 | |
358 | static void |
575 | ecb_inline void |
359 | free_padlist (pTHX_ AV *padlist) |
576 | free_padlist (pTHX_ PADLIST *padlist) |
360 | { |
577 | { |
361 | /* may be during global destruction */ |
578 | /* may be during global destruction */ |
362 | if (SvREFCNT (padlist)) |
579 | if (!IN_DESTRUCT) |
363 | { |
580 | { |
364 | I32 i = AvFILLp (padlist); |
581 | I32 i = PadlistMAX (padlist); |
365 | while (i >= 0) |
582 | |
|
|
583 | while (i > 0) /* special-case index 0 */ |
366 | { |
584 | { |
367 | SV **svp = av_fetch (padlist, i--, FALSE); |
585 | /* we try to be extra-careful here */ |
|
|
586 | PAD *pad = PadlistARRAY (padlist)[i--]; |
|
|
587 | |
368 | if (svp) |
588 | if (pad) |
369 | { |
589 | { |
370 | SV *sv; |
590 | I32 j = PadMAX (pad); |
371 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
591 | |
|
|
592 | while (j >= 0) |
372 | SvREFCNT_dec (sv); |
593 | SvREFCNT_dec (PadARRAY (pad)[j--]); |
373 | |
594 | |
|
|
595 | PadMAX (pad) = -1; |
374 | SvREFCNT_dec (*svp); |
596 | SvREFCNT_dec (pad); |
375 | } |
597 | } |
376 | } |
598 | } |
377 | |
599 | |
|
|
600 | PadnamelistREFCNT_dec (PadlistNAMES (padlist)); |
|
|
601 | |
|
|
602 | #if NEWPADAPI |
|
|
603 | Safefree (PadlistARRAY (padlist)); |
|
|
604 | Safefree (padlist); |
|
|
605 | #else |
|
|
606 | AvFILLp (padlist) = -1; |
|
|
607 | AvREAL_off (padlist); |
378 | SvREFCNT_dec ((SV*)padlist); |
608 | SvREFCNT_dec ((SV*)padlist); |
|
|
609 | #endif |
379 | } |
610 | } |
380 | } |
611 | } |
381 | |
612 | |
382 | static int |
613 | static int |
383 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
614 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
384 | { |
615 | { |
385 | AV *padlist; |
616 | PADLIST *padlist; |
386 | AV *av = (AV *)mg->mg_obj; |
617 | PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t)); |
|
|
618 | size_t len = *(size_t *)mg->mg_ptr; |
387 | |
619 | |
388 | /* casting is fun. */ |
620 | /* perl manages to free our internal AV and _then_ call us */ |
389 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
621 | if (IN_DESTRUCT) |
|
|
622 | return 0; |
|
|
623 | |
|
|
624 | while (len--) |
390 | free_padlist (aTHX_ padlist); |
625 | free_padlist (aTHX_ padlists[len]); |
391 | |
|
|
392 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
|
|
393 | |
626 | |
394 | return 0; |
627 | return 0; |
395 | } |
628 | } |
396 | |
|
|
397 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
|
|
398 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
399 | |
629 | |
400 | static MGVTBL coro_cv_vtbl = { |
630 | static MGVTBL coro_cv_vtbl = { |
401 | 0, 0, 0, 0, |
631 | 0, 0, 0, 0, |
402 | coro_cv_free |
632 | coro_cv_free |
403 | }; |
633 | }; |
404 | |
634 | |
405 | #define CORO_MAGIC(sv, type) \ |
|
|
406 | SvMAGIC (sv) \ |
|
|
407 | ? SvMAGIC (sv)->mg_type == type \ |
|
|
408 | ? SvMAGIC (sv) \ |
|
|
409 | : mg_find (sv, type) \ |
|
|
410 | : 0 |
|
|
411 | |
|
|
412 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
413 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
414 | |
|
|
415 | INLINE struct coro * |
|
|
416 | SvSTATE_ (pTHX_ SV *coro) |
|
|
417 | { |
|
|
418 | HV *stash; |
|
|
419 | MAGIC *mg; |
|
|
420 | |
|
|
421 | if (SvROK (coro)) |
|
|
422 | coro = SvRV (coro); |
|
|
423 | |
|
|
424 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
425 | croak ("Coro::State object required"); |
|
|
426 | |
|
|
427 | stash = SvSTASH (coro); |
|
|
428 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
429 | { |
|
|
430 | /* very slow, but rare, check */ |
|
|
431 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
432 | croak ("Coro::State object required"); |
|
|
433 | } |
|
|
434 | |
|
|
435 | mg = CORO_MAGIC_state (coro); |
|
|
436 | return (struct coro *)mg->mg_ptr; |
|
|
437 | } |
|
|
438 | |
|
|
439 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
440 | |
|
|
441 | /* the next two functions merely cache the padlists */ |
635 | /* the next two functions merely cache the padlists */ |
442 | static void |
636 | ecb_inline void |
443 | get_padlist (pTHX_ CV *cv) |
637 | get_padlist (pTHX_ CV *cv) |
444 | { |
638 | { |
445 | MAGIC *mg = CORO_MAGIC_cv (cv); |
639 | MAGIC *mg = CORO_MAGIC_cv (cv); |
446 | AV *av; |
640 | size_t *lenp; |
447 | |
641 | |
448 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
642 | if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr))) |
449 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
643 | CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp]; |
450 | else |
644 | else |
451 | { |
645 | { |
452 | #if CORO_PREFER_PERL_FUNCTIONS |
646 | #if CORO_PREFER_PERL_FUNCTIONS |
453 | /* this is probably cleaner? but also slower! */ |
647 | /* this is probably cleaner? but also slower! */ |
454 | /* in practise, it seems to be less stable */ |
648 | /* in practise, it seems to be less stable */ |
455 | CV *cp = Perl_cv_clone (cv); |
649 | CV *cp = Perl_cv_clone (aTHX_ cv); |
456 | CvPADLIST (cv) = CvPADLIST (cp); |
650 | CvPADLIST (cv) = CvPADLIST (cp); |
457 | CvPADLIST (cp) = 0; |
651 | CvPADLIST (cp) = 0; |
458 | SvREFCNT_dec (cp); |
652 | SvREFCNT_dec (cp); |
459 | #else |
653 | #else |
460 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
654 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
461 | #endif |
655 | #endif |
462 | } |
656 | } |
463 | } |
657 | } |
464 | |
658 | |
465 | static void |
659 | ecb_inline void |
466 | put_padlist (pTHX_ CV *cv) |
660 | put_padlist (pTHX_ CV *cv) |
467 | { |
661 | { |
468 | MAGIC *mg = CORO_MAGIC_cv (cv); |
662 | MAGIC *mg = CORO_MAGIC_cv (cv); |
469 | AV *av; |
|
|
470 | |
663 | |
471 | if (expect_false (!mg)) |
664 | if (ecb_expect_false (!mg)) |
|
|
665 | { |
472 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
666 | mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
|
|
667 | Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char); |
|
|
668 | mg->mg_len = 1; /* so mg_free frees mg_ptr */ |
|
|
669 | } |
|
|
670 | else |
|
|
671 | Renew (mg->mg_ptr, |
|
|
672 | sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *), |
|
|
673 | char); |
473 | |
674 | |
474 | av = (AV *)mg->mg_obj; |
675 | ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv); |
475 | |
|
|
476 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
|
|
477 | av_extend (av, AvMAX (av) + 1); |
|
|
478 | |
|
|
479 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
|
|
480 | } |
676 | } |
481 | |
677 | |
482 | /** load & save, init *******************************************************/ |
678 | /** load & save, init *******************************************************/ |
|
|
679 | |
|
|
680 | ecb_inline void |
|
|
681 | swap_sv (SV *a, SV *b) |
|
|
682 | { |
|
|
683 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
684 | SV tmp; |
|
|
685 | |
|
|
686 | /* swap sv_any */ |
|
|
687 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
|
|
688 | |
|
|
689 | /* swap sv_flags */ |
|
|
690 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
691 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
692 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
693 | |
|
|
694 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
695 | /* perl 5.10 and later complicates this _quite_ a bit, but it also |
|
|
696 | * is much faster, so no quarrels here. alternatively, we could |
|
|
697 | * sv_upgrade to avoid this. |
|
|
698 | */ |
|
|
699 | { |
|
|
700 | /* swap sv_u */ |
|
|
701 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
702 | |
|
|
703 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
704 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
705 | */ |
|
|
706 | #define svany_in_head(type) \ |
|
|
707 | (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type))) |
|
|
708 | |
|
|
709 | if (svany_in_head (SvTYPE (a))) |
|
|
710 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
711 | |
|
|
712 | if (svany_in_head (SvTYPE (b))) |
|
|
713 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
714 | } |
|
|
715 | #endif |
|
|
716 | } |
|
|
717 | |
|
|
718 | /* swap sv heads, at least logically */ |
|
|
719 | static void |
|
|
720 | swap_svs (pTHX_ Coro__State c) |
|
|
721 | { |
|
|
722 | int i; |
|
|
723 | |
|
|
724 | for (i = 0; i <= AvFILLp (c->swap_sv); i += 2) |
|
|
725 | swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]); |
|
|
726 | } |
|
|
727 | |
|
|
728 | #define SWAP_SVS(coro) \ |
|
|
729 | if (ecb_expect_false ((coro)->swap_sv)) \ |
|
|
730 | swap_svs (aTHX_ (coro)) |
|
|
731 | |
|
|
732 | static void |
|
|
733 | on_enterleave_call (pTHX_ SV *cb); |
483 | |
734 | |
484 | static void |
735 | static void |
485 | load_perl (pTHX_ Coro__State c) |
736 | load_perl (pTHX_ Coro__State c) |
486 | { |
737 | { |
487 | perl_slots *slot = c->slot; |
738 | perl_slots *slot = c->slot; |
488 | c->slot = 0; |
739 | c->slot = 0; |
489 | |
740 | |
490 | PL_mainstack = c->mainstack; |
741 | PL_mainstack = c->mainstack; |
491 | |
742 | |
492 | GvSV (PL_defgv) = slot->defsv; |
743 | #if CORO_JIT |
493 | GvAV (PL_defgv) = slot->defav; |
744 | load_perl_slots (slot); |
494 | GvSV (PL_errgv) = slot->errsv; |
745 | #else |
495 | GvSV (irsgv) = slot->irsgv; |
|
|
496 | |
|
|
497 | #define VAR(name,type) PL_ ## name = slot->name; |
746 | #define VARx(name,expr,type) expr = slot->name; |
498 | # include "state.h" |
747 | #include "state.h" |
499 | #undef VAR |
748 | #endif |
500 | |
749 | |
501 | { |
750 | { |
502 | dSP; |
751 | dSP; |
503 | |
752 | |
504 | CV *cv; |
753 | CV *cv; |
505 | |
754 | |
506 | /* now do the ugly restore mess */ |
755 | /* now do the ugly restore mess */ |
507 | while (expect_true (cv = (CV *)POPs)) |
756 | while (ecb_expect_true (cv = (CV *)POPs)) |
508 | { |
757 | { |
509 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
758 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
510 | CvDEPTH (cv) = PTR2IV (POPs); |
759 | CvDEPTH (cv) = PTR2IV (POPs); |
511 | CvPADLIST (cv) = (AV *)POPs; |
760 | CvPADLIST (cv) = (PADLIST *)POPs; |
512 | } |
761 | } |
513 | |
762 | |
514 | PUTBACK; |
763 | PUTBACK; |
515 | } |
764 | } |
|
|
765 | |
|
|
766 | slf_frame = c->slf_frame; |
|
|
767 | CORO_THROW = c->except; |
|
|
768 | |
|
|
769 | if (ecb_expect_false (enable_times)) |
|
|
770 | { |
|
|
771 | if (ecb_expect_false (!times_valid)) |
|
|
772 | coro_times_update (); |
|
|
773 | |
|
|
774 | coro_times_sub (c); |
|
|
775 | } |
|
|
776 | |
|
|
777 | if (ecb_expect_false (c->on_enter)) |
|
|
778 | { |
|
|
779 | int i; |
|
|
780 | |
|
|
781 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
782 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
783 | } |
|
|
784 | |
|
|
785 | SWAP_SVS (c); |
516 | } |
786 | } |
517 | |
787 | |
518 | static void |
788 | static void |
519 | save_perl (pTHX_ Coro__State c) |
789 | save_perl (pTHX_ Coro__State c) |
520 | { |
790 | { |
|
|
791 | SWAP_SVS (c); |
|
|
792 | |
|
|
793 | if (ecb_expect_false (c->on_leave)) |
|
|
794 | { |
|
|
795 | int i; |
|
|
796 | |
|
|
797 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
798 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
799 | } |
|
|
800 | |
|
|
801 | times_valid = 0; |
|
|
802 | |
|
|
803 | if (ecb_expect_false (enable_times)) |
|
|
804 | { |
|
|
805 | coro_times_update (); times_valid = 1; |
|
|
806 | coro_times_add (c); |
|
|
807 | } |
|
|
808 | |
|
|
809 | c->except = CORO_THROW; |
|
|
810 | c->slf_frame = slf_frame; |
|
|
811 | |
521 | { |
812 | { |
522 | dSP; |
813 | dSP; |
523 | I32 cxix = cxstack_ix; |
814 | I32 cxix = cxstack_ix; |
524 | PERL_CONTEXT *ccstk = cxstack; |
815 | PERL_CONTEXT *ccstk = cxstack; |
525 | PERL_SI *top_si = PL_curstackinfo; |
816 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
531 | |
822 | |
532 | XPUSHs (Nullsv); |
823 | XPUSHs (Nullsv); |
533 | /* this loop was inspired by pp_caller */ |
824 | /* this loop was inspired by pp_caller */ |
534 | for (;;) |
825 | for (;;) |
535 | { |
826 | { |
536 | while (expect_true (cxix >= 0)) |
827 | while (ecb_expect_true (cxix >= 0)) |
537 | { |
828 | { |
538 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
829 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
539 | |
830 | |
540 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
831 | if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT)) |
541 | { |
832 | { |
542 | CV *cv = cx->blk_sub.cv; |
833 | CV *cv = cx->blk_sub.cv; |
543 | |
834 | |
544 | if (expect_true (CvDEPTH (cv))) |
835 | if (ecb_expect_true (CvDEPTH (cv))) |
545 | { |
836 | { |
546 | EXTEND (SP, 3); |
837 | EXTEND (SP, 3); |
547 | PUSHs ((SV *)CvPADLIST (cv)); |
838 | PUSHs ((SV *)CvPADLIST (cv)); |
548 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
839 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
549 | PUSHs ((SV *)cv); |
840 | PUSHs ((SV *)cv); |
… | |
… | |
552 | get_padlist (aTHX_ cv); |
843 | get_padlist (aTHX_ cv); |
553 | } |
844 | } |
554 | } |
845 | } |
555 | } |
846 | } |
556 | |
847 | |
557 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
848 | if (ecb_expect_true (top_si->si_type == PERLSI_MAIN)) |
558 | break; |
849 | break; |
559 | |
850 | |
560 | top_si = top_si->si_prev; |
851 | top_si = top_si->si_prev; |
561 | ccstk = top_si->si_cxstack; |
852 | ccstk = top_si->si_cxstack; |
562 | cxix = top_si->si_cxix; |
853 | cxix = top_si->si_cxix; |
… | |
… | |
564 | |
855 | |
565 | PUTBACK; |
856 | PUTBACK; |
566 | } |
857 | } |
567 | |
858 | |
568 | /* allocate some space on the context stack for our purposes */ |
859 | /* allocate some space on the context stack for our purposes */ |
569 | /* we manually unroll here, as usually 2 slots is enough */ |
860 | if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max)) |
570 | if (SLOT_COUNT >= 1) CXINC; |
|
|
571 | if (SLOT_COUNT >= 2) CXINC; |
|
|
572 | if (SLOT_COUNT >= 3) CXINC; |
|
|
573 | { |
861 | { |
574 | int i; |
862 | unsigned int i; |
|
|
863 | |
575 | for (i = 3; i < SLOT_COUNT; ++i) |
864 | for (i = 0; i < SLOT_COUNT; ++i) |
576 | CXINC; |
865 | CXINC; |
577 | } |
866 | |
578 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
867 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
868 | } |
579 | |
869 | |
580 | c->mainstack = PL_mainstack; |
870 | c->mainstack = PL_mainstack; |
581 | |
871 | |
582 | { |
872 | { |
583 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
873 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
584 | |
874 | |
585 | slot->defav = GvAV (PL_defgv); |
875 | #if CORO_JIT |
586 | slot->defsv = DEFSV; |
876 | save_perl_slots (slot); |
587 | slot->errsv = ERRSV; |
877 | #else |
588 | slot->irsgv = GvSV (irsgv); |
|
|
589 | |
|
|
590 | #define VAR(name,type) slot->name = PL_ ## name; |
878 | #define VARx(name,expr,type) slot->name = expr; |
591 | # include "state.h" |
879 | #include "state.h" |
592 | #undef VAR |
880 | #endif |
593 | } |
881 | } |
594 | } |
882 | } |
595 | |
883 | |
596 | /* |
884 | /* |
597 | * allocate various perl stacks. This is an exact copy |
885 | * allocate various perl stacks. This is almost an exact copy |
598 | * of perl.c:init_stacks, except that it uses less memory |
886 | * of perl.c:init_stacks, except that it uses less memory |
599 | * on the (sometimes correct) assumption that coroutines do |
887 | * on the (sometimes correct) assumption that coroutines do |
600 | * not usually need a lot of stackspace. |
888 | * not usually need a lot of stackspace. |
601 | */ |
889 | */ |
602 | #if CORO_PREFER_PERL_FUNCTIONS |
890 | #if CORO_PREFER_PERL_FUNCTIONS |
603 | # define coro_init_stacks init_stacks |
891 | # define coro_init_stacks(thx) init_stacks () |
604 | #else |
892 | #else |
605 | static void |
893 | static void |
606 | coro_init_stacks (pTHX) |
894 | coro_init_stacks (pTHX) |
607 | { |
895 | { |
608 | PL_curstackinfo = new_stackinfo(32, 8); |
896 | PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */ |
609 | PL_curstackinfo->si_type = PERLSI_MAIN; |
897 | PL_curstackinfo->si_type = PERLSI_MAIN; |
610 | PL_curstack = PL_curstackinfo->si_stack; |
898 | PL_curstack = PL_curstackinfo->si_stack; |
611 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
899 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
612 | |
900 | |
613 | PL_stack_base = AvARRAY(PL_curstack); |
901 | PL_stack_base = AvARRAY(PL_curstack); |
… | |
… | |
628 | #endif |
916 | #endif |
629 | |
917 | |
630 | New(54,PL_scopestack,8,I32); |
918 | New(54,PL_scopestack,8,I32); |
631 | PL_scopestack_ix = 0; |
919 | PL_scopestack_ix = 0; |
632 | PL_scopestack_max = 8; |
920 | PL_scopestack_max = 8; |
|
|
921 | #if HAS_SCOPESTACK_NAME |
|
|
922 | New(54,PL_scopestack_name,8,const char*); |
|
|
923 | #endif |
633 | |
924 | |
634 | New(54,PL_savestack,24,ANY); |
925 | New(54,PL_savestack,24,ANY); |
635 | PL_savestack_ix = 0; |
926 | PL_savestack_ix = 0; |
636 | PL_savestack_max = 24; |
927 | PL_savestack_max = 24; |
637 | |
928 | |
… | |
… | |
665 | } |
956 | } |
666 | |
957 | |
667 | Safefree (PL_tmps_stack); |
958 | Safefree (PL_tmps_stack); |
668 | Safefree (PL_markstack); |
959 | Safefree (PL_markstack); |
669 | Safefree (PL_scopestack); |
960 | Safefree (PL_scopestack); |
|
|
961 | #if HAS_SCOPESTACK_NAME |
|
|
962 | Safefree (PL_scopestack_name); |
|
|
963 | #endif |
670 | Safefree (PL_savestack); |
964 | Safefree (PL_savestack); |
671 | #if !PERL_VERSION_ATLEAST (5,10,0) |
965 | #if !PERL_VERSION_ATLEAST (5,10,0) |
672 | Safefree (PL_retstack); |
966 | Safefree (PL_retstack); |
673 | #endif |
967 | #endif |
674 | } |
968 | } |
675 | |
969 | |
|
|
970 | #define CORO_RSS \ |
|
|
971 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
972 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
973 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
974 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
975 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
976 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
977 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
978 | |
676 | static size_t |
979 | static size_t |
677 | coro_rss (pTHX_ struct coro *coro) |
980 | coro_rss (pTHX_ struct coro *coro) |
678 | { |
981 | { |
679 | size_t rss = sizeof (*coro); |
982 | size_t rss = sizeof (*coro); |
680 | |
983 | |
681 | if (coro->mainstack) |
984 | if (coro->mainstack) |
682 | { |
985 | { |
683 | perl_slots tmp_slot; |
|
|
684 | perl_slots *slot; |
|
|
685 | |
|
|
686 | if (coro->flags & CF_RUNNING) |
986 | if (coro->flags & CF_RUNNING) |
687 | { |
987 | { |
688 | slot = &tmp_slot; |
988 | #define SYM(sym) PL_ ## sym |
689 | |
989 | CORO_RSS; |
690 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
691 | # include "state.h" |
|
|
692 | #undef VAR |
990 | #undef SYM |
693 | } |
991 | } |
694 | else |
992 | else |
695 | slot = coro->slot; |
|
|
696 | |
|
|
697 | if (slot) |
|
|
698 | { |
993 | { |
699 | rss += sizeof (slot->curstackinfo); |
994 | #define SYM(sym) coro->slot->sym |
700 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
995 | CORO_RSS; |
701 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
996 | #undef SYM |
702 | rss += slot->tmps_max * sizeof (SV *); |
|
|
703 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
704 | rss += slot->scopestack_max * sizeof (I32); |
|
|
705 | rss += slot->savestack_max * sizeof (ANY); |
|
|
706 | |
|
|
707 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
708 | rss += slot->retstack_max * sizeof (OP *); |
|
|
709 | #endif |
|
|
710 | } |
997 | } |
711 | } |
998 | } |
712 | |
999 | |
713 | return rss; |
1000 | return rss; |
714 | } |
|
|
715 | |
|
|
716 | /** set stacklevel support **************************************************/ |
|
|
717 | |
|
|
718 | /* we sometimes need to create the effect of pp_set_stacklevel calling us */ |
|
|
719 | #define SSL_HEAD (void)0 |
|
|
720 | /* we somtimes need to create the effect of leaving via pp_set_stacklevel */ |
|
|
721 | #define SSL_TAIL set_stacklevel_tail (aTHX) |
|
|
722 | |
|
|
723 | INLINE void |
|
|
724 | set_stacklevel_tail (pTHX) |
|
|
725 | { |
|
|
726 | dSP; |
|
|
727 | SV **bot = SP; |
|
|
728 | |
|
|
729 | int gimme = GIMME_V; |
|
|
730 | |
|
|
731 | /* make sure we put something on the stack in scalar context */ |
|
|
732 | if (gimme == G_SCALAR) |
|
|
733 | { |
|
|
734 | if (sp == bot) |
|
|
735 | XPUSHs (&PL_sv_undef); |
|
|
736 | |
|
|
737 | SP = bot + 1; |
|
|
738 | } |
|
|
739 | |
|
|
740 | PUTBACK; |
|
|
741 | } |
1001 | } |
742 | |
1002 | |
743 | /** coroutine stack handling ************************************************/ |
1003 | /** coroutine stack handling ************************************************/ |
744 | |
1004 | |
745 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
1005 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
… | |
… | |
754 | #endif |
1014 | #endif |
755 | |
1015 | |
756 | /* |
1016 | /* |
757 | * This overrides the default magic get method of %SIG elements. |
1017 | * This overrides the default magic get method of %SIG elements. |
758 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
1018 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
759 | * and instead of tryign to save and restore the hash elements, we just provide |
1019 | * and instead of trying to save and restore the hash elements (extremely slow), |
760 | * readback here. |
1020 | * we just provide our own readback here. |
761 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
762 | * not expecting this to actually change the hook. This is a potential problem |
|
|
763 | * when a schedule happens then, but we ignore this. |
|
|
764 | */ |
1021 | */ |
765 | static int |
1022 | static int ecb_cold |
766 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
1023 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
767 | { |
1024 | { |
768 | const char *s = MgPV_nolen_const (mg); |
1025 | const char *s = MgPV_nolen_const (mg); |
769 | |
1026 | |
770 | if (*s == '_') |
1027 | if (*s == '_') |
771 | { |
1028 | { |
772 | SV **svp = 0; |
1029 | SV **svp = 0; |
773 | |
1030 | |
774 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
1031 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
775 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
1032 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
776 | |
1033 | |
777 | if (svp) |
1034 | if (svp) |
778 | { |
1035 | { |
779 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
1036 | SV *ssv; |
|
|
1037 | |
|
|
1038 | if (!*svp) |
|
|
1039 | ssv = &PL_sv_undef; |
|
|
1040 | else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */ |
|
|
1041 | ssv = sv_2mortal (newRV_inc (*svp)); |
|
|
1042 | else |
|
|
1043 | ssv = *svp; |
|
|
1044 | |
|
|
1045 | sv_setsv (sv, ssv); |
780 | return 0; |
1046 | return 0; |
781 | } |
1047 | } |
782 | } |
1048 | } |
783 | |
1049 | |
784 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
1050 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
785 | } |
1051 | } |
786 | |
1052 | |
787 | static int |
1053 | static int ecb_cold |
788 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
1054 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
789 | { |
1055 | { |
790 | const char *s = MgPV_nolen_const (mg); |
1056 | const char *s = MgPV_nolen_const (mg); |
791 | |
1057 | |
792 | if (*s == '_') |
1058 | if (*s == '_') |
… | |
… | |
806 | } |
1072 | } |
807 | |
1073 | |
808 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
1074 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
809 | } |
1075 | } |
810 | |
1076 | |
811 | static int |
1077 | static int ecb_cold |
812 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
1078 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
813 | { |
1079 | { |
814 | const char *s = MgPV_nolen_const (mg); |
1080 | const char *s = MgPV_nolen_const (mg); |
815 | |
1081 | |
816 | if (*s == '_') |
1082 | if (*s == '_') |
… | |
… | |
821 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
1087 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
822 | |
1088 | |
823 | if (svp) |
1089 | if (svp) |
824 | { |
1090 | { |
825 | SV *old = *svp; |
1091 | SV *old = *svp; |
826 | *svp = newSVsv (sv); |
1092 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
827 | SvREFCNT_dec (old); |
1093 | SvREFCNT_dec (old); |
828 | return 0; |
1094 | return 0; |
829 | } |
1095 | } |
830 | } |
1096 | } |
831 | |
1097 | |
832 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
1098 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
833 | } |
1099 | } |
834 | |
1100 | |
835 | static void |
1101 | static void |
|
|
1102 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
1103 | { |
|
|
1104 | /* kind of mega-hacky, but works */ |
|
|
1105 | ta->next = ta->prev = (struct coro *)ta; |
|
|
1106 | } |
|
|
1107 | |
|
|
1108 | static int |
|
|
1109 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
1110 | { |
|
|
1111 | return 0; |
|
|
1112 | } |
|
|
1113 | |
|
|
1114 | static int |
|
|
1115 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
1116 | { |
|
|
1117 | return 1; |
|
|
1118 | } |
|
|
1119 | |
|
|
1120 | static UNOP init_perl_op; |
|
|
1121 | |
|
|
1122 | ecb_noinline static void /* noinline to keep it out of the transfer fast path */ |
836 | coro_setup (pTHX_ struct coro *coro) |
1123 | init_perl (pTHX_ struct coro *coro) |
837 | { |
1124 | { |
838 | /* |
1125 | /* |
839 | * emulate part of the perl startup here. |
1126 | * emulate part of the perl startup here. |
840 | */ |
1127 | */ |
841 | coro_init_stacks (aTHX); |
1128 | coro_init_stacks (aTHX); |
842 | |
1129 | |
843 | PL_runops = RUNOPS_DEFAULT; |
1130 | PL_runops = RUNOPS_DEFAULT; |
844 | PL_curcop = &PL_compiling; |
1131 | PL_curcop = &PL_compiling; |
845 | PL_in_eval = EVAL_NULL; |
1132 | PL_in_eval = EVAL_NULL; |
846 | PL_comppad = 0; |
1133 | PL_comppad = 0; |
|
|
1134 | PL_comppad_name = 0; |
|
|
1135 | PL_comppad_name_fill = 0; |
|
|
1136 | PL_comppad_name_floor = 0; |
847 | PL_curpm = 0; |
1137 | PL_curpm = 0; |
848 | PL_curpad = 0; |
1138 | PL_curpad = 0; |
849 | PL_localizing = 0; |
1139 | PL_localizing = 0; |
850 | PL_dirty = 0; |
|
|
851 | PL_restartop = 0; |
1140 | PL_restartop = 0; |
852 | #if PERL_VERSION_ATLEAST (5,10,0) |
1141 | #if PERL_VERSION_ATLEAST (5,10,0) |
853 | PL_parser = 0; |
1142 | PL_parser = 0; |
854 | #endif |
1143 | #endif |
|
|
1144 | PL_hints = 0; |
855 | |
1145 | |
856 | /* recreate the die/warn hooks */ |
1146 | /* recreate the die/warn hooks */ |
857 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
1147 | PL_diehook = SvREFCNT_inc (rv_diehook); |
858 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
1148 | PL_warnhook = SvREFCNT_inc (rv_warnhook); |
859 | |
1149 | |
860 | GvSV (PL_defgv) = newSV (0); |
1150 | GvSV (PL_defgv) = newSV (0); |
861 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1151 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
862 | GvSV (PL_errgv) = newSV (0); |
1152 | GvSV (PL_errgv) = newSV (0); |
863 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
1153 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
1154 | GvHV (PL_hintgv) = newHV (); |
|
|
1155 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
1156 | hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints); |
|
|
1157 | #endif |
864 | PL_rs = newSVsv (GvSV (irsgv)); |
1158 | PL_rs = newSVsv (GvSV (irsgv)); |
865 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
1159 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
866 | |
1160 | |
867 | { |
1161 | { |
868 | dSP; |
1162 | dSP; |
869 | UNOP myop; |
1163 | UNOP myop; |
870 | |
1164 | |
871 | Zero (&myop, 1, UNOP); |
1165 | Zero (&myop, 1, UNOP); |
872 | myop.op_next = Nullop; |
1166 | myop.op_next = Nullop; |
|
|
1167 | myop.op_type = OP_ENTERSUB; |
873 | myop.op_flags = OPf_WANT_VOID; |
1168 | myop.op_flags = OPf_WANT_VOID; |
874 | |
1169 | |
875 | PUSHMARK (SP); |
1170 | PUSHMARK (SP); |
876 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
1171 | PUSHs ((SV *)coro->startcv); |
877 | PUTBACK; |
1172 | PUTBACK; |
878 | PL_op = (OP *)&myop; |
1173 | PL_op = (OP *)&myop; |
879 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1174 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
880 | SPAGAIN; |
|
|
881 | } |
1175 | } |
882 | |
1176 | |
883 | /* this newly created coroutine might be run on an existing cctx which most |
1177 | /* this newly created coroutine might be run on an existing cctx which most |
884 | * likely was suspended in set_stacklevel, called from pp_set_stacklevel, |
1178 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
885 | * so we have to emulate entering pp_set_stacklevel here. |
|
|
886 | */ |
1179 | */ |
887 | SSL_HEAD; |
1180 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
888 | } |
1181 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
1182 | slf_frame.destroy = 0; |
889 | |
1183 | |
|
|
1184 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
1185 | init_perl_op.op_next = PL_op; |
|
|
1186 | init_perl_op.op_type = OP_ENTERSUB; |
|
|
1187 | init_perl_op.op_ppaddr = pp_slf; |
|
|
1188 | /* no flags etc. required, as an init function won't be called */ |
|
|
1189 | |
|
|
1190 | PL_op = (OP *)&init_perl_op; |
|
|
1191 | |
|
|
1192 | /* copy throw, in case it was set before init_perl */ |
|
|
1193 | CORO_THROW = coro->except; |
|
|
1194 | |
|
|
1195 | SWAP_SVS (coro); |
|
|
1196 | |
|
|
1197 | if (ecb_expect_false (enable_times)) |
|
|
1198 | { |
|
|
1199 | coro_times_update (); |
|
|
1200 | coro_times_sub (coro); |
|
|
1201 | } |
|
|
1202 | } |
|
|
1203 | |
890 | static void |
1204 | static void |
891 | coro_destruct (pTHX_ struct coro *coro) |
1205 | coro_unwind_stacks (pTHX) |
892 | { |
1206 | { |
893 | if (!IN_DESTRUCT) |
1207 | if (!IN_DESTRUCT) |
894 | { |
1208 | { |
895 | /* restore all saved variables and stuff */ |
1209 | /* restore all saved variables and stuff */ |
896 | LEAVE_SCOPE (0); |
1210 | LEAVE_SCOPE (0); |
… | |
… | |
904 | POPSTACK_TO (PL_mainstack); |
1218 | POPSTACK_TO (PL_mainstack); |
905 | |
1219 | |
906 | /* unwind main stack */ |
1220 | /* unwind main stack */ |
907 | dounwind (-1); |
1221 | dounwind (-1); |
908 | } |
1222 | } |
|
|
1223 | } |
909 | |
1224 | |
910 | SvREFCNT_dec (GvSV (PL_defgv)); |
1225 | static void |
911 | SvREFCNT_dec (GvAV (PL_defgv)); |
1226 | destroy_perl (pTHX_ struct coro *coro) |
912 | SvREFCNT_dec (GvSV (PL_errgv)); |
1227 | { |
913 | SvREFCNT_dec (PL_defoutgv); |
1228 | SV *svf [9]; |
914 | SvREFCNT_dec (PL_rs); |
|
|
915 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
916 | |
1229 | |
917 | SvREFCNT_dec (PL_diehook); |
|
|
918 | SvREFCNT_dec (PL_warnhook); |
|
|
919 | |
1230 | { |
|
|
1231 | SV *old_current = SvRV (coro_current); |
|
|
1232 | struct coro *current = SvSTATE (old_current); |
|
|
1233 | |
|
|
1234 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1235 | |
|
|
1236 | save_perl (aTHX_ current); |
|
|
1237 | |
|
|
1238 | /* this will cause transfer_check to croak on block*/ |
|
|
1239 | SvRV_set (coro_current, (SV *)coro->hv); |
|
|
1240 | |
|
|
1241 | load_perl (aTHX_ coro); |
|
|
1242 | |
|
|
1243 | coro_unwind_stacks (aTHX); |
|
|
1244 | |
|
|
1245 | /* restore swapped sv's */ |
|
|
1246 | SWAP_SVS (coro); |
|
|
1247 | |
|
|
1248 | coro_destruct_stacks (aTHX); |
|
|
1249 | |
|
|
1250 | /* now save some sv's to be free'd later */ |
|
|
1251 | svf [0] = GvSV (PL_defgv); |
|
|
1252 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1253 | svf [2] = GvSV (PL_errgv); |
|
|
1254 | svf [3] = (SV *)PL_defoutgv; |
|
|
1255 | svf [4] = PL_rs; |
|
|
1256 | svf [5] = GvSV (irsgv); |
|
|
1257 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1258 | svf [7] = PL_diehook; |
|
|
1259 | svf [8] = PL_warnhook; |
|
|
1260 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1261 | |
|
|
1262 | SvRV_set (coro_current, old_current); |
|
|
1263 | |
|
|
1264 | load_perl (aTHX_ current); |
|
|
1265 | } |
|
|
1266 | |
|
|
1267 | { |
|
|
1268 | unsigned int i; |
|
|
1269 | |
|
|
1270 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1271 | SvREFCNT_dec (svf [i]); |
|
|
1272 | |
920 | SvREFCNT_dec (coro->saved_deffh); |
1273 | SvREFCNT_dec (coro->saved_deffh); |
921 | SvREFCNT_dec (coro->throw); |
1274 | SvREFCNT_dec (coro->rouse_cb); |
922 | |
1275 | SvREFCNT_dec (coro->invoke_cb); |
923 | coro_destruct_stacks (aTHX); |
1276 | SvREFCNT_dec (coro->invoke_av); |
|
|
1277 | } |
924 | } |
1278 | } |
925 | |
1279 | |
926 | INLINE void |
1280 | ecb_inline void |
927 | free_coro_mortal (pTHX) |
1281 | free_coro_mortal (pTHX) |
928 | { |
1282 | { |
929 | if (expect_true (coro_mortal)) |
1283 | if (ecb_expect_true (coro_mortal)) |
930 | { |
1284 | { |
931 | SvREFCNT_dec (coro_mortal); |
1285 | SvREFCNT_dec ((SV *)coro_mortal); |
932 | coro_mortal = 0; |
1286 | coro_mortal = 0; |
933 | } |
1287 | } |
934 | } |
1288 | } |
935 | |
1289 | |
936 | static int |
1290 | static int |
937 | runops_trace (pTHX) |
1291 | runops_trace (pTHX) |
938 | { |
1292 | { |
939 | COP *oldcop = 0; |
1293 | COP *oldcop = 0; |
940 | int oldcxix = -2; |
1294 | int oldcxix = -2; |
941 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
942 | coro_cctx *cctx = coro->cctx; |
|
|
943 | |
1295 | |
944 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
1296 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
945 | { |
1297 | { |
946 | PERL_ASYNC_CHECK (); |
1298 | PERL_ASYNC_CHECK (); |
947 | |
1299 | |
948 | if (cctx->flags & CC_TRACE_ALL) |
1300 | if (cctx_current->flags & CC_TRACE_ALL) |
949 | { |
1301 | { |
950 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
1302 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
951 | { |
1303 | { |
952 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1304 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
953 | SV **bot, **top; |
1305 | SV **bot, **top; |
954 | AV *av = newAV (); /* return values */ |
1306 | AV *av = newAV (); /* return values */ |
955 | SV **cb; |
1307 | SV **cb; |
… | |
… | |
992 | |
1344 | |
993 | if (PL_curcop != &PL_compiling) |
1345 | if (PL_curcop != &PL_compiling) |
994 | { |
1346 | { |
995 | SV **cb; |
1347 | SV **cb; |
996 | |
1348 | |
997 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1349 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
998 | { |
1350 | { |
999 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1351 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1000 | |
1352 | |
1001 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1353 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1002 | { |
1354 | { |
1003 | runops_proc_t old_runops = PL_runops; |
|
|
1004 | dSP; |
1355 | dSP; |
1005 | GV *gv = CvGV (cx->blk_sub.cv); |
1356 | GV *gv = CvGV (cx->blk_sub.cv); |
1006 | SV *fullname = sv_2mortal (newSV (0)); |
1357 | SV *fullname = sv_2mortal (newSV (0)); |
1007 | |
1358 | |
1008 | if (isGV (gv)) |
1359 | if (isGV (gv)) |
… | |
… | |
1013 | SAVETMPS; |
1364 | SAVETMPS; |
1014 | EXTEND (SP, 3); |
1365 | EXTEND (SP, 3); |
1015 | PUSHMARK (SP); |
1366 | PUSHMARK (SP); |
1016 | PUSHs (&PL_sv_yes); |
1367 | PUSHs (&PL_sv_yes); |
1017 | PUSHs (fullname); |
1368 | PUSHs (fullname); |
1018 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1369 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1019 | PUTBACK; |
1370 | PUTBACK; |
1020 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1371 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1021 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1372 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1022 | SPAGAIN; |
1373 | SPAGAIN; |
1023 | FREETMPS; |
1374 | FREETMPS; |
… | |
… | |
1026 | } |
1377 | } |
1027 | |
1378 | |
1028 | oldcxix = cxstack_ix; |
1379 | oldcxix = cxstack_ix; |
1029 | } |
1380 | } |
1030 | |
1381 | |
1031 | if (cctx->flags & CC_TRACE_LINE) |
1382 | if (cctx_current->flags & CC_TRACE_LINE) |
1032 | { |
1383 | { |
1033 | dSP; |
1384 | dSP; |
1034 | |
1385 | |
1035 | PL_runops = RUNOPS_DEFAULT; |
1386 | PL_runops = RUNOPS_DEFAULT; |
1036 | ENTER; |
1387 | ENTER; |
… | |
… | |
1055 | |
1406 | |
1056 | TAINT_NOT; |
1407 | TAINT_NOT; |
1057 | return 0; |
1408 | return 0; |
1058 | } |
1409 | } |
1059 | |
1410 | |
|
|
1411 | static struct CoroSLF cctx_ssl_frame; |
|
|
1412 | |
1060 | static void |
1413 | static void |
1061 | prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx) |
1414 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
1062 | { |
1415 | { |
1063 | ta->prev = (struct coro *)cctx; |
|
|
1064 | ta->next = 0; |
1416 | ta->prev = 0; |
1065 | } |
1417 | } |
1066 | |
1418 | |
1067 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1419 | static int |
1068 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1420 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
1069 | /* during execution of a perl program */ |
|
|
1070 | /* also initialises PL_top_env */ |
|
|
1071 | static void NOINLINE |
|
|
1072 | cctx_prepare (pTHX_ coro_cctx *cctx) |
|
|
1073 | { |
1421 | { |
1074 | dSP; |
1422 | *frame = cctx_ssl_frame; |
1075 | UNOP myop; |
|
|
1076 | |
1423 | |
|
|
1424 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1425 | } |
|
|
1426 | |
|
|
1427 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
|
|
1428 | static void ecb_noinline |
|
|
1429 | cctx_prepare (pTHX) |
|
|
1430 | { |
1077 | PL_top_env = &PL_start_env; |
1431 | PL_top_env = &PL_start_env; |
1078 | |
1432 | |
1079 | if (cctx->flags & CC_TRACE) |
1433 | if (cctx_current->flags & CC_TRACE) |
1080 | PL_runops = runops_trace; |
1434 | PL_runops = runops_trace; |
1081 | |
1435 | |
1082 | Zero (&myop, 1, UNOP); |
1436 | /* we already must be executing an SLF op, there is no other valid way |
1083 | myop.op_next = PL_op; |
1437 | * that can lead to creation of a new cctx */ |
1084 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1438 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1439 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1085 | |
1440 | |
1086 | PUSHMARK (SP); |
1441 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1087 | EXTEND (SP, 2); |
1442 | cctx_ssl_frame = slf_frame; |
1088 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1443 | |
1089 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1444 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1090 | PUTBACK; |
1445 | slf_frame.check = slf_check_set_stacklevel; |
1091 | PL_op = (OP *)&myop; |
|
|
1092 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1093 | SPAGAIN; |
|
|
1094 | } |
1446 | } |
1095 | |
1447 | |
1096 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1448 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1097 | INLINE void |
1449 | ecb_inline void |
1098 | transfer_tail (pTHX) |
1450 | transfer_tail (pTHX) |
1099 | { |
1451 | { |
1100 | struct coro *next = (struct coro *)transfer_next; |
|
|
1101 | assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */ |
|
|
1102 | assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next)); |
|
|
1103 | |
|
|
1104 | free_coro_mortal (aTHX); |
1452 | free_coro_mortal (aTHX); |
1105 | UNLOCK; |
1453 | } |
1106 | |
1454 | |
1107 | if (expect_false (next->throw)) |
1455 | /* try to exit the same way perl's main function would do */ |
1108 | { |
1456 | /* we do not bother resetting the environment or other things *7 |
1109 | SV *exception = sv_2mortal (next->throw); |
1457 | /* that are not, uhm, essential */ |
1110 | |
1458 | /* this obviously also doesn't work when perl is embedded */ |
1111 | next->throw = 0; |
1459 | static void ecb_noinline ecb_cold |
1112 | sv_setsv (ERRSV, exception); |
1460 | perlish_exit (pTHX) |
1113 | croak (0); |
1461 | { |
1114 | } |
1462 | int exitstatus = perl_destruct (PL_curinterp); |
|
|
1463 | perl_free (PL_curinterp); |
|
|
1464 | exit (exitstatus); |
1115 | } |
1465 | } |
1116 | |
1466 | |
1117 | /* |
1467 | /* |
1118 | * this is a _very_ stripped down perl interpreter ;) |
1468 | * this is a _very_ stripped down perl interpreter ;) |
1119 | */ |
1469 | */ |
… | |
… | |
1126 | # endif |
1476 | # endif |
1127 | #endif |
1477 | #endif |
1128 | { |
1478 | { |
1129 | dTHX; |
1479 | dTHX; |
1130 | |
1480 | |
1131 | /* we are the alternative tail to pp_set_stacklevel */ |
1481 | /* normally we would need to skip the entersub here */ |
1132 | /* so do the same things here */ |
1482 | /* not doing so will re-execute it, which is exactly what we want */ |
1133 | SSL_TAIL; |
|
|
1134 | |
|
|
1135 | /* we now skip the op that did lead to transfer() */ |
|
|
1136 | PL_op = PL_op->op_next; |
1483 | /* PL_nop = PL_nop->op_next */ |
1137 | |
1484 | |
1138 | /* inject a fake subroutine call to cctx_init */ |
1485 | /* inject a fake subroutine call to cctx_init */ |
1139 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1486 | cctx_prepare (aTHX); |
1140 | |
1487 | |
1141 | /* cctx_run is the alternative tail of transfer() */ |
1488 | /* cctx_run is the alternative tail of transfer() */ |
1142 | transfer_tail (aTHX); |
1489 | transfer_tail (aTHX); |
1143 | |
1490 | |
1144 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1491 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1145 | PL_restartop = PL_op; |
1492 | PL_restartop = PL_op; |
1146 | perl_run (PL_curinterp); |
1493 | perl_run (PL_curinterp); |
|
|
1494 | /* |
|
|
1495 | * Unfortunately, there is no way to get at the return values of the |
|
|
1496 | * coro body here, as perl_run destroys these. Likewise, we cannot catch |
|
|
1497 | * runtime errors here, as this is just a random interpreter, not a thread. |
|
|
1498 | */ |
1147 | |
1499 | |
1148 | /* |
1500 | /* |
1149 | * If perl-run returns we assume exit() was being called or the coro |
1501 | * If perl-run returns we assume exit() was being called or the coro |
1150 | * fell off the end, which seems to be the only valid (non-bug) |
1502 | * fell off the end, which seems to be the only valid (non-bug) |
1151 | * reason for perl_run to return. We try to exit by jumping to the |
1503 | * reason for perl_run to return. We try to mimic whatever perl is normally |
1152 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1504 | * doing in that case. YMMV. |
1153 | * coroutine as Coro has no such concept |
|
|
1154 | */ |
1505 | */ |
1155 | PL_top_env = main_top_env; |
1506 | perlish_exit (aTHX); |
1156 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1157 | } |
1507 | } |
1158 | } |
1508 | } |
1159 | |
1509 | |
1160 | static coro_cctx * |
1510 | static coro_cctx * |
1161 | cctx_new () |
1511 | cctx_new (void) |
1162 | { |
1512 | { |
1163 | coro_cctx *cctx; |
1513 | coro_cctx *cctx; |
1164 | |
1514 | |
1165 | ++cctx_count; |
1515 | ++cctx_count; |
1166 | New (0, cctx, 1, coro_cctx); |
1516 | New (0, cctx, 1, coro_cctx); |
… | |
… | |
1172 | return cctx; |
1522 | return cctx; |
1173 | } |
1523 | } |
1174 | |
1524 | |
1175 | /* create a new cctx only suitable as source */ |
1525 | /* create a new cctx only suitable as source */ |
1176 | static coro_cctx * |
1526 | static coro_cctx * |
1177 | cctx_new_empty () |
1527 | cctx_new_empty (void) |
1178 | { |
1528 | { |
1179 | coro_cctx *cctx = cctx_new (); |
1529 | coro_cctx *cctx = cctx_new (); |
1180 | |
1530 | |
1181 | cctx->sptr = 0; |
1531 | cctx->stack.sptr = 0; |
1182 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
1532 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
1183 | |
1533 | |
1184 | return cctx; |
1534 | return cctx; |
1185 | } |
1535 | } |
1186 | |
1536 | |
1187 | /* create a new cctx suitable as destination/running a perl interpreter */ |
1537 | /* create a new cctx suitable as destination/running a perl interpreter */ |
1188 | static coro_cctx * |
1538 | static coro_cctx * |
1189 | cctx_new_run () |
1539 | cctx_new_run (void) |
1190 | { |
1540 | { |
1191 | coro_cctx *cctx = cctx_new (); |
1541 | coro_cctx *cctx = cctx_new (); |
1192 | void *stack_start; |
|
|
1193 | size_t stack_size; |
|
|
1194 | |
1542 | |
1195 | #if HAVE_MMAP |
1543 | if (!coro_stack_alloc (&cctx->stack, cctx_stacksize)) |
1196 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
|
|
1197 | /* mmap supposedly does allocate-on-write for us */ |
|
|
1198 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
1199 | |
|
|
1200 | if (cctx->sptr != (void *)-1) |
|
|
1201 | { |
|
|
1202 | #if CORO_STACKGUARD |
|
|
1203 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
1204 | #endif |
|
|
1205 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
|
|
1206 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
1207 | cctx->flags |= CC_MAPPED; |
|
|
1208 | } |
1544 | { |
1209 | else |
|
|
1210 | #endif |
|
|
1211 | { |
|
|
1212 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
|
|
1213 | New (0, cctx->sptr, cctx_stacksize, long); |
|
|
1214 | |
|
|
1215 | if (!cctx->sptr) |
|
|
1216 | { |
|
|
1217 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1545 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1218 | _exit (EXIT_FAILURE); |
1546 | _exit (EXIT_FAILURE); |
1219 | } |
|
|
1220 | |
|
|
1221 | stack_start = cctx->sptr; |
|
|
1222 | stack_size = cctx->ssize; |
|
|
1223 | } |
1547 | } |
1224 | |
1548 | |
1225 | #if CORO_USE_VALGRIND |
|
|
1226 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1227 | #endif |
|
|
1228 | |
|
|
1229 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1549 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze); |
1230 | |
1550 | |
1231 | return cctx; |
1551 | return cctx; |
1232 | } |
1552 | } |
1233 | |
1553 | |
1234 | static void |
1554 | static void |
1235 | cctx_destroy (coro_cctx *cctx) |
1555 | cctx_destroy (coro_cctx *cctx) |
1236 | { |
1556 | { |
1237 | if (!cctx) |
1557 | if (!cctx) |
1238 | return; |
1558 | return; |
1239 | |
1559 | |
|
|
1560 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); |
|
|
1561 | |
1240 | --cctx_count; |
1562 | --cctx_count; |
1241 | coro_destroy (&cctx->cctx); |
1563 | coro_destroy (&cctx->cctx); |
1242 | |
1564 | |
1243 | /* coro_transfer creates new, empty cctx's */ |
1565 | coro_stack_free (&cctx->stack); |
1244 | if (cctx->sptr) |
|
|
1245 | { |
|
|
1246 | #if CORO_USE_VALGRIND |
|
|
1247 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
1248 | #endif |
|
|
1249 | |
|
|
1250 | #if HAVE_MMAP |
|
|
1251 | if (cctx->flags & CC_MAPPED) |
|
|
1252 | munmap (cctx->sptr, cctx->ssize); |
|
|
1253 | else |
|
|
1254 | #endif |
|
|
1255 | Safefree (cctx->sptr); |
|
|
1256 | } |
|
|
1257 | |
1566 | |
1258 | Safefree (cctx); |
1567 | Safefree (cctx); |
1259 | } |
1568 | } |
1260 | |
1569 | |
1261 | /* wether this cctx should be destructed */ |
1570 | /* wether this cctx should be destructed */ |
1262 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1571 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1263 | |
1572 | |
1264 | static coro_cctx * |
1573 | static coro_cctx * |
1265 | cctx_get (pTHX) |
1574 | cctx_get (pTHX) |
1266 | { |
1575 | { |
1267 | while (expect_true (cctx_first)) |
1576 | while (ecb_expect_true (cctx_first)) |
1268 | { |
1577 | { |
1269 | coro_cctx *cctx = cctx_first; |
1578 | coro_cctx *cctx = cctx_first; |
1270 | cctx_first = cctx->next; |
1579 | cctx_first = cctx->next; |
1271 | --cctx_idle; |
1580 | --cctx_idle; |
1272 | |
1581 | |
1273 | if (expect_true (!CCTX_EXPIRED (cctx))) |
1582 | if (ecb_expect_true (!CCTX_EXPIRED (cctx))) |
1274 | return cctx; |
1583 | return cctx; |
1275 | |
1584 | |
1276 | cctx_destroy (cctx); |
1585 | cctx_destroy (cctx); |
1277 | } |
1586 | } |
1278 | |
1587 | |
… | |
… | |
1280 | } |
1589 | } |
1281 | |
1590 | |
1282 | static void |
1591 | static void |
1283 | cctx_put (coro_cctx *cctx) |
1592 | cctx_put (coro_cctx *cctx) |
1284 | { |
1593 | { |
1285 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1594 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr)); |
1286 | |
1595 | |
1287 | /* free another cctx if overlimit */ |
1596 | /* free another cctx if overlimit */ |
1288 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1597 | if (ecb_expect_false (cctx_idle >= cctx_max_idle)) |
1289 | { |
1598 | { |
1290 | coro_cctx *first = cctx_first; |
1599 | coro_cctx *first = cctx_first; |
1291 | cctx_first = first->next; |
1600 | cctx_first = first->next; |
1292 | --cctx_idle; |
1601 | --cctx_idle; |
1293 | |
1602 | |
… | |
… | |
1302 | /** coroutine switching *****************************************************/ |
1611 | /** coroutine switching *****************************************************/ |
1303 | |
1612 | |
1304 | static void |
1613 | static void |
1305 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1614 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1306 | { |
1615 | { |
|
|
1616 | /* TODO: throwing up here is considered harmful */ |
|
|
1617 | |
1307 | if (expect_true (prev != next)) |
1618 | if (ecb_expect_true (prev != next)) |
1308 | { |
1619 | { |
1309 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1620 | if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1310 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1621 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1311 | |
1622 | |
1312 | if (expect_false (next->flags & CF_RUNNING)) |
1623 | if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED))) |
1313 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1314 | |
|
|
1315 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1316 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1624 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1317 | |
1625 | |
1318 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1626 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1319 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1627 | if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING)) |
1320 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
1628 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1321 | #endif |
1629 | #endif |
1322 | } |
1630 | } |
1323 | } |
1631 | } |
1324 | |
1632 | |
1325 | /* always use the TRANSFER macro */ |
1633 | /* always use the TRANSFER macro */ |
1326 | static void NOINLINE |
1634 | static void ecb_noinline /* noinline so we have a fixed stackframe */ |
1327 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1635 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1328 | { |
1636 | { |
1329 | dSTACKLEVEL; |
1637 | dSTACKLEVEL; |
1330 | |
1638 | |
1331 | /* sometimes transfer is only called to set idle_sp */ |
1639 | /* sometimes transfer is only called to set idle_sp */ |
1332 | if (expect_false (!next)) |
1640 | if (ecb_expect_false (!prev)) |
1333 | { |
1641 | { |
1334 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1642 | cctx_current->idle_sp = STACKLEVEL; |
1335 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1643 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1336 | } |
1644 | } |
1337 | else if (expect_true (prev != next)) |
1645 | else if (ecb_expect_true (prev != next)) |
1338 | { |
1646 | { |
1339 | coro_cctx *prev__cctx; |
1647 | coro_cctx *cctx_prev; |
1340 | |
1648 | |
1341 | if (expect_false (prev->flags & CF_NEW)) |
1649 | if (ecb_expect_false (prev->flags & CF_NEW)) |
1342 | { |
1650 | { |
1343 | /* create a new empty/source context */ |
1651 | /* create a new empty/source context */ |
1344 | prev->cctx = cctx_new_empty (); |
|
|
1345 | prev->flags &= ~CF_NEW; |
1652 | prev->flags &= ~CF_NEW; |
1346 | prev->flags |= CF_RUNNING; |
1653 | prev->flags |= CF_RUNNING; |
1347 | } |
1654 | } |
1348 | |
1655 | |
1349 | prev->flags &= ~CF_RUNNING; |
1656 | prev->flags &= ~CF_RUNNING; |
1350 | next->flags |= CF_RUNNING; |
1657 | next->flags |= CF_RUNNING; |
1351 | |
1658 | |
1352 | LOCK; |
|
|
1353 | |
|
|
1354 | /* first get rid of the old state */ |
1659 | /* first get rid of the old state */ |
1355 | save_perl (aTHX_ prev); |
1660 | save_perl (aTHX_ prev); |
1356 | |
1661 | |
1357 | if (expect_false (next->flags & CF_NEW)) |
1662 | if (ecb_expect_false (next->flags & CF_NEW)) |
1358 | { |
1663 | { |
1359 | /* need to start coroutine */ |
1664 | /* need to start coroutine */ |
1360 | next->flags &= ~CF_NEW; |
1665 | next->flags &= ~CF_NEW; |
1361 | /* setup coroutine call */ |
1666 | /* setup coroutine call */ |
1362 | coro_setup (aTHX_ next); |
1667 | init_perl (aTHX_ next); |
1363 | } |
1668 | } |
1364 | else |
1669 | else |
1365 | load_perl (aTHX_ next); |
1670 | load_perl (aTHX_ next); |
1366 | |
1671 | |
1367 | prev__cctx = prev->cctx; |
|
|
1368 | |
|
|
1369 | /* possibly untie and reuse the cctx */ |
1672 | /* possibly untie and reuse the cctx */ |
1370 | if (expect_true ( |
1673 | if (ecb_expect_true ( |
1371 | prev__cctx->idle_sp == STACKLEVEL |
1674 | cctx_current->idle_sp == STACKLEVEL |
1372 | && !(prev__cctx->flags & CC_TRACE) |
1675 | && !(cctx_current->flags & CC_TRACE) |
1373 | && !force_cctx |
1676 | && !force_cctx |
1374 | )) |
1677 | )) |
1375 | { |
1678 | { |
1376 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1679 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1377 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1680 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1378 | |
1681 | |
1379 | prev->cctx = 0; |
|
|
1380 | |
|
|
1381 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1682 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1382 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1683 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1383 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
1684 | if (ecb_expect_false (CCTX_EXPIRED (cctx_current))) |
1384 | if (!next->cctx) |
1685 | if (ecb_expect_true (!next->cctx)) |
1385 | next->cctx = cctx_get (aTHX); |
1686 | next->cctx = cctx_get (aTHX); |
1386 | |
1687 | |
1387 | cctx_put (prev__cctx); |
1688 | cctx_put (cctx_current); |
1388 | } |
1689 | } |
|
|
1690 | else |
|
|
1691 | prev->cctx = cctx_current; |
1389 | |
1692 | |
1390 | ++next->usecount; |
1693 | ++next->usecount; |
1391 | |
1694 | |
1392 | if (expect_true (!next->cctx)) |
1695 | cctx_prev = cctx_current; |
1393 | next->cctx = cctx_get (aTHX); |
1696 | cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1394 | |
1697 | |
1395 | assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next)); |
1698 | next->cctx = 0; |
1396 | transfer_next = next; |
|
|
1397 | |
1699 | |
1398 | if (expect_false (prev__cctx != next->cctx)) |
1700 | if (ecb_expect_false (cctx_prev != cctx_current)) |
1399 | { |
1701 | { |
1400 | prev__cctx->top_env = PL_top_env; |
1702 | cctx_prev->top_env = PL_top_env; |
1401 | PL_top_env = next->cctx->top_env; |
1703 | PL_top_env = cctx_current->top_env; |
1402 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1704 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1403 | } |
1705 | } |
1404 | |
1706 | |
1405 | transfer_tail (aTHX); |
1707 | transfer_tail (aTHX); |
1406 | } |
1708 | } |
1407 | } |
1709 | } |
… | |
… | |
1409 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1711 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1410 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1712 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1411 | |
1713 | |
1412 | /** high level stuff ********************************************************/ |
1714 | /** high level stuff ********************************************************/ |
1413 | |
1715 | |
|
|
1716 | /* this function is actually Coro, not Coro::State, but we call it from here */ |
|
|
1717 | /* because it is convenient - but it hasn't been declared yet for that reason */ |
1414 | static int |
1718 | static void |
|
|
1719 | coro_call_on_destroy (pTHX_ struct coro *coro); |
|
|
1720 | |
|
|
1721 | static void |
1415 | coro_state_destroy (pTHX_ struct coro *coro) |
1722 | coro_state_destroy (pTHX_ struct coro *coro) |
1416 | { |
1723 | { |
1417 | if (coro->flags & CF_DESTROYED) |
1724 | if (coro->flags & CF_ZOMBIE) |
1418 | return 0; |
1725 | return; |
1419 | |
1726 | |
|
|
1727 | slf_destroy (aTHX_ coro); |
|
|
1728 | |
1420 | coro->flags |= CF_DESTROYED; |
1729 | coro->flags |= CF_ZOMBIE; |
1421 | |
1730 | |
1422 | if (coro->flags & CF_READY) |
1731 | if (coro->flags & CF_READY) |
1423 | { |
1732 | { |
1424 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1733 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1425 | /* alternative: look through all ready queues and remove the coro */ |
1734 | /* alternative: look through all ready queues and remove the coro */ |
1426 | LOCK; |
|
|
1427 | --coro_nready; |
1735 | --coro_nready; |
1428 | UNLOCK; |
|
|
1429 | } |
1736 | } |
1430 | else |
1737 | else |
1431 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1738 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1432 | |
|
|
1433 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
1434 | { |
|
|
1435 | struct coro temp; |
|
|
1436 | |
|
|
1437 | if (coro->flags & CF_RUNNING) |
|
|
1438 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1439 | |
|
|
1440 | save_perl (aTHX_ &temp); |
|
|
1441 | load_perl (aTHX_ coro); |
|
|
1442 | |
|
|
1443 | coro_destruct (aTHX_ coro); |
|
|
1444 | |
|
|
1445 | load_perl (aTHX_ &temp); |
|
|
1446 | |
|
|
1447 | coro->slot = 0; |
|
|
1448 | } |
|
|
1449 | |
|
|
1450 | cctx_destroy (coro->cctx); |
|
|
1451 | SvREFCNT_dec (coro->args); |
|
|
1452 | |
1739 | |
1453 | if (coro->next) coro->next->prev = coro->prev; |
1740 | if (coro->next) coro->next->prev = coro->prev; |
1454 | if (coro->prev) coro->prev->next = coro->next; |
1741 | if (coro->prev) coro->prev->next = coro->next; |
1455 | if (coro == coro_first) coro_first = coro->next; |
1742 | if (coro == coro_first) coro_first = coro->next; |
1456 | |
1743 | |
1457 | return 1; |
1744 | if (coro->mainstack |
|
|
1745 | && coro->mainstack != main_mainstack |
|
|
1746 | && coro->slot |
|
|
1747 | && !PL_dirty) |
|
|
1748 | destroy_perl (aTHX_ coro); |
|
|
1749 | |
|
|
1750 | cctx_destroy (coro->cctx); |
|
|
1751 | SvREFCNT_dec (coro->startcv); |
|
|
1752 | SvREFCNT_dec (coro->args); |
|
|
1753 | SvREFCNT_dec (coro->swap_sv); |
|
|
1754 | SvREFCNT_dec (CORO_THROW); |
|
|
1755 | |
|
|
1756 | coro_call_on_destroy (aTHX_ coro); |
|
|
1757 | |
|
|
1758 | /* more destruction mayhem in coro_state_free */ |
1458 | } |
1759 | } |
1459 | |
1760 | |
1460 | static int |
1761 | static int |
1461 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1762 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1462 | { |
1763 | { |
1463 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1764 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1464 | mg->mg_ptr = 0; |
1765 | mg->mg_ptr = 0; |
1465 | |
1766 | |
1466 | coro->hv = 0; |
|
|
1467 | |
|
|
1468 | if (--coro->refcnt < 0) |
|
|
1469 | { |
|
|
1470 | coro_state_destroy (aTHX_ coro); |
1767 | coro_state_destroy (aTHX_ coro); |
|
|
1768 | SvREFCNT_dec (coro->on_destroy); |
|
|
1769 | SvREFCNT_dec (coro->status); |
|
|
1770 | |
1471 | Safefree (coro); |
1771 | Safefree (coro); |
1472 | } |
|
|
1473 | |
1772 | |
1474 | return 0; |
1773 | return 0; |
1475 | } |
1774 | } |
1476 | |
1775 | |
1477 | static int |
1776 | static int ecb_cold |
1478 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1777 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1479 | { |
1778 | { |
1480 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1779 | /* called when perl clones the current process the slow way (windows process emulation) */ |
1481 | |
1780 | /* WE SIMply nuke the pointers in the copy, causing perl to croak */ |
1482 | ++coro->refcnt; |
1781 | mg->mg_ptr = 0; |
|
|
1782 | mg->mg_virtual = 0; |
1483 | |
1783 | |
1484 | return 0; |
1784 | return 0; |
1485 | } |
1785 | } |
1486 | |
1786 | |
1487 | static MGVTBL coro_state_vtbl = { |
1787 | static MGVTBL coro_state_vtbl = { |
… | |
… | |
1494 | # define MGf_DUP 0 |
1794 | # define MGf_DUP 0 |
1495 | #endif |
1795 | #endif |
1496 | }; |
1796 | }; |
1497 | |
1797 | |
1498 | static void |
1798 | static void |
1499 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1799 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1500 | { |
1800 | { |
1501 | ta->prev = SvSTATE (prev_sv); |
1801 | ta->prev = SvSTATE (prev_sv); |
1502 | ta->next = SvSTATE (next_sv); |
1802 | ta->next = SvSTATE (next_sv); |
1503 | TRANSFER_CHECK (*ta); |
1803 | TRANSFER_CHECK (*ta); |
1504 | } |
1804 | } |
1505 | |
1805 | |
1506 | static void |
1806 | static void |
1507 | api_transfer (SV *prev_sv, SV *next_sv) |
1807 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1508 | { |
1808 | { |
1509 | dTHX; |
|
|
1510 | struct transfer_args ta; |
1809 | struct coro_transfer_args ta; |
1511 | |
1810 | |
1512 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1811 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1513 | TRANSFER (ta, 1); |
1812 | TRANSFER (ta, 1); |
1514 | } |
1813 | } |
1515 | |
1814 | |
1516 | /** Coro ********************************************************************/ |
1815 | /** Coro ********************************************************************/ |
1517 | |
1816 | |
1518 | static void |
1817 | ecb_inline void |
1519 | coro_enq (pTHX_ SV *coro_sv) |
1818 | coro_enq (pTHX_ struct coro *coro) |
1520 | { |
1819 | { |
1521 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1820 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1522 | } |
|
|
1523 | |
1821 | |
1524 | static SV * |
1822 | SvREFCNT_inc_NN (coro->hv); |
|
|
1823 | |
|
|
1824 | coro->next_ready = 0; |
|
|
1825 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1826 | ready [1] = coro; |
|
|
1827 | } |
|
|
1828 | |
|
|
1829 | ecb_inline struct coro * |
1525 | coro_deq (pTHX) |
1830 | coro_deq (pTHX) |
1526 | { |
1831 | { |
1527 | int prio; |
1832 | int prio; |
1528 | |
1833 | |
1529 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1834 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
1530 | if (AvFILLp (coro_ready [prio]) >= 0) |
1835 | { |
1531 | return av_shift (coro_ready [prio]); |
1836 | struct coro **ready = coro_ready [prio]; |
|
|
1837 | |
|
|
1838 | if (ready [0]) |
|
|
1839 | { |
|
|
1840 | struct coro *coro = ready [0]; |
|
|
1841 | ready [0] = coro->next_ready; |
|
|
1842 | return coro; |
|
|
1843 | } |
|
|
1844 | } |
1532 | |
1845 | |
1533 | return 0; |
1846 | return 0; |
1534 | } |
1847 | } |
1535 | |
1848 | |
|
|
1849 | static void |
|
|
1850 | invoke_sv_ready_hook_helper (void) |
|
|
1851 | { |
|
|
1852 | dTHX; |
|
|
1853 | dSP; |
|
|
1854 | |
|
|
1855 | ENTER; |
|
|
1856 | SAVETMPS; |
|
|
1857 | |
|
|
1858 | PUSHMARK (SP); |
|
|
1859 | PUTBACK; |
|
|
1860 | call_sv (coro_readyhook, G_VOID | G_DISCARD); |
|
|
1861 | |
|
|
1862 | FREETMPS; |
|
|
1863 | LEAVE; |
|
|
1864 | } |
|
|
1865 | |
1536 | static int |
1866 | static int |
1537 | api_ready (SV *coro_sv) |
1867 | api_ready (pTHX_ SV *coro_sv) |
1538 | { |
1868 | { |
1539 | dTHX; |
|
|
1540 | struct coro *coro; |
|
|
1541 | SV *sv_hook; |
|
|
1542 | void (*xs_hook)(void); |
|
|
1543 | |
|
|
1544 | if (SvROK (coro_sv)) |
|
|
1545 | coro_sv = SvRV (coro_sv); |
|
|
1546 | |
|
|
1547 | coro = SvSTATE (coro_sv); |
1869 | struct coro *coro = SvSTATE (coro_sv); |
1548 | |
1870 | |
1549 | if (coro->flags & CF_READY) |
1871 | if (coro->flags & CF_READY) |
1550 | return 0; |
1872 | return 0; |
1551 | |
1873 | |
1552 | coro->flags |= CF_READY; |
1874 | coro->flags |= CF_READY; |
1553 | |
1875 | |
1554 | LOCK; |
1876 | coro_enq (aTHX_ coro); |
1555 | |
1877 | |
1556 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1878 | if (!coro_nready++) |
1557 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1879 | if (coroapi.readyhook) |
1558 | |
1880 | coroapi.readyhook (); |
1559 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
|
|
1560 | ++coro_nready; |
|
|
1561 | |
|
|
1562 | UNLOCK; |
|
|
1563 | |
|
|
1564 | if (sv_hook) |
|
|
1565 | { |
|
|
1566 | dSP; |
|
|
1567 | |
|
|
1568 | ENTER; |
|
|
1569 | SAVETMPS; |
|
|
1570 | |
|
|
1571 | PUSHMARK (SP); |
|
|
1572 | PUTBACK; |
|
|
1573 | call_sv (sv_hook, G_DISCARD); |
|
|
1574 | SPAGAIN; |
|
|
1575 | |
|
|
1576 | FREETMPS; |
|
|
1577 | LEAVE; |
|
|
1578 | } |
|
|
1579 | |
|
|
1580 | if (xs_hook) |
|
|
1581 | xs_hook (); |
|
|
1582 | |
1881 | |
1583 | return 1; |
1882 | return 1; |
1584 | } |
1883 | } |
1585 | |
1884 | |
1586 | static int |
1885 | static int |
1587 | api_is_ready (SV *coro_sv) |
1886 | api_is_ready (pTHX_ SV *coro_sv) |
1588 | { |
1887 | { |
1589 | dTHX; |
|
|
1590 | |
|
|
1591 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1888 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1592 | } |
1889 | } |
1593 | |
1890 | |
1594 | INLINE void |
1891 | /* expects to own a reference to next->hv */ |
|
|
1892 | ecb_inline void |
1595 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1893 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1596 | { |
1894 | { |
1597 | SV *prev_sv, *next_sv; |
|
|
1598 | |
|
|
1599 | for (;;) |
|
|
1600 | { |
|
|
1601 | LOCK; |
|
|
1602 | next_sv = coro_deq (aTHX); |
|
|
1603 | |
|
|
1604 | /* nothing to schedule: call the idle handler */ |
|
|
1605 | if (expect_false (!next_sv)) |
|
|
1606 | { |
|
|
1607 | dSP; |
|
|
1608 | UNLOCK; |
|
|
1609 | |
|
|
1610 | ENTER; |
|
|
1611 | SAVETMPS; |
|
|
1612 | |
|
|
1613 | PUSHMARK (SP); |
|
|
1614 | PUTBACK; |
|
|
1615 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1616 | SPAGAIN; |
|
|
1617 | |
|
|
1618 | FREETMPS; |
|
|
1619 | LEAVE; |
|
|
1620 | continue; |
|
|
1621 | } |
|
|
1622 | |
|
|
1623 | ta->next = SvSTATE (next_sv); |
|
|
1624 | |
|
|
1625 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1626 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1627 | { |
|
|
1628 | UNLOCK; |
|
|
1629 | SvREFCNT_dec (next_sv); |
|
|
1630 | /* coro_nready has already been taken care of by destroy */ |
|
|
1631 | continue; |
|
|
1632 | } |
|
|
1633 | |
|
|
1634 | --coro_nready; |
|
|
1635 | UNLOCK; |
|
|
1636 | break; |
|
|
1637 | } |
|
|
1638 | |
|
|
1639 | /* free this only after the transfer */ |
|
|
1640 | prev_sv = SvRV (coro_current); |
1895 | SV *prev_sv = SvRV (coro_current); |
|
|
1896 | |
1641 | ta->prev = SvSTATE (prev_sv); |
1897 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1898 | ta->next = next; |
|
|
1899 | |
1642 | TRANSFER_CHECK (*ta); |
1900 | TRANSFER_CHECK (*ta); |
1643 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1901 | |
1644 | ta->next->flags &= ~CF_READY; |
|
|
1645 | SvRV_set (coro_current, next_sv); |
1902 | SvRV_set (coro_current, (SV *)next->hv); |
1646 | |
1903 | |
1647 | LOCK; |
|
|
1648 | free_coro_mortal (aTHX); |
1904 | free_coro_mortal (aTHX); |
1649 | coro_mortal = prev_sv; |
1905 | coro_mortal = prev_sv; |
1650 | UNLOCK; |
|
|
1651 | } |
1906 | } |
1652 | |
1907 | |
1653 | INLINE void |
1908 | static void |
|
|
1909 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1910 | { |
|
|
1911 | for (;;) |
|
|
1912 | { |
|
|
1913 | struct coro *next = coro_deq (aTHX); |
|
|
1914 | |
|
|
1915 | if (ecb_expect_true (next)) |
|
|
1916 | { |
|
|
1917 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1918 | if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED))) |
|
|
1919 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1920 | else |
|
|
1921 | { |
|
|
1922 | next->flags &= ~CF_READY; |
|
|
1923 | --coro_nready; |
|
|
1924 | |
|
|
1925 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1926 | break; |
|
|
1927 | } |
|
|
1928 | } |
|
|
1929 | else |
|
|
1930 | { |
|
|
1931 | /* nothing to schedule: call the idle handler */ |
|
|
1932 | if (SvROK (sv_idle) |
|
|
1933 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1934 | { |
|
|
1935 | if (SvRV (sv_idle) == SvRV (coro_current)) |
|
|
1936 | { |
|
|
1937 | require_pv ("Carp"); |
|
|
1938 | |
|
|
1939 | { |
|
|
1940 | dSP; |
|
|
1941 | |
|
|
1942 | ENTER; |
|
|
1943 | SAVETMPS; |
|
|
1944 | |
|
|
1945 | PUSHMARK (SP); |
|
|
1946 | XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0))); |
|
|
1947 | PUTBACK; |
|
|
1948 | call_pv ("Carp::confess", G_VOID | G_DISCARD); |
|
|
1949 | |
|
|
1950 | FREETMPS; |
|
|
1951 | LEAVE; |
|
|
1952 | } |
|
|
1953 | } |
|
|
1954 | |
|
|
1955 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1956 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1957 | --coro_nready; |
|
|
1958 | } |
|
|
1959 | else |
|
|
1960 | { |
|
|
1961 | /* TODO: deprecated, remove, cannot work reliably *//*D*/ |
|
|
1962 | dSP; |
|
|
1963 | |
|
|
1964 | ENTER; |
|
|
1965 | SAVETMPS; |
|
|
1966 | |
|
|
1967 | PUSHMARK (SP); |
|
|
1968 | PUTBACK; |
|
|
1969 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1970 | |
|
|
1971 | FREETMPS; |
|
|
1972 | LEAVE; |
|
|
1973 | } |
|
|
1974 | } |
|
|
1975 | } |
|
|
1976 | } |
|
|
1977 | |
|
|
1978 | ecb_inline void |
1654 | prepare_cede (pTHX_ struct transfer_args *ta) |
1979 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1655 | { |
1980 | { |
1656 | api_ready (coro_current); |
1981 | api_ready (aTHX_ coro_current); |
1657 | prepare_schedule (aTHX_ ta); |
1982 | prepare_schedule (aTHX_ ta); |
1658 | } |
1983 | } |
1659 | |
1984 | |
|
|
1985 | ecb_inline void |
|
|
1986 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1987 | { |
|
|
1988 | SV *prev = SvRV (coro_current); |
|
|
1989 | |
|
|
1990 | if (coro_nready) |
|
|
1991 | { |
|
|
1992 | prepare_schedule (aTHX_ ta); |
|
|
1993 | api_ready (aTHX_ prev); |
|
|
1994 | } |
|
|
1995 | else |
|
|
1996 | prepare_nop (aTHX_ ta); |
|
|
1997 | } |
|
|
1998 | |
|
|
1999 | static void |
|
|
2000 | api_schedule (pTHX) |
|
|
2001 | { |
|
|
2002 | struct coro_transfer_args ta; |
|
|
2003 | |
|
|
2004 | prepare_schedule (aTHX_ &ta); |
|
|
2005 | TRANSFER (ta, 1); |
|
|
2006 | } |
|
|
2007 | |
|
|
2008 | static void |
|
|
2009 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
2010 | { |
|
|
2011 | struct coro_transfer_args ta; |
|
|
2012 | struct coro *next = SvSTATE (coro_sv); |
|
|
2013 | |
|
|
2014 | SvREFCNT_inc_NN (coro_sv); |
|
|
2015 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
2016 | } |
|
|
2017 | |
1660 | static int |
2018 | static int |
1661 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
2019 | api_cede (pTHX) |
1662 | { |
2020 | { |
1663 | if (coro_nready) |
2021 | struct coro_transfer_args ta; |
1664 | { |
2022 | |
1665 | SV *prev = SvRV (coro_current); |
|
|
1666 | prepare_schedule (aTHX_ ta); |
2023 | prepare_cede (aTHX_ &ta); |
1667 | api_ready (prev); |
2024 | |
|
|
2025 | if (ecb_expect_true (ta.prev != ta.next)) |
|
|
2026 | { |
|
|
2027 | TRANSFER (ta, 1); |
1668 | return 1; |
2028 | return 1; |
1669 | } |
2029 | } |
1670 | else |
2030 | else |
1671 | return 0; |
2031 | return 0; |
1672 | } |
2032 | } |
1673 | |
2033 | |
1674 | static void |
|
|
1675 | api_schedule (void) |
|
|
1676 | { |
|
|
1677 | dTHX; |
|
|
1678 | struct transfer_args ta; |
|
|
1679 | |
|
|
1680 | prepare_schedule (aTHX_ &ta); |
|
|
1681 | TRANSFER (ta, 1); |
|
|
1682 | } |
|
|
1683 | |
|
|
1684 | static int |
2034 | static int |
1685 | api_cede (void) |
2035 | api_cede_notself (pTHX) |
1686 | { |
2036 | { |
1687 | dTHX; |
2037 | if (coro_nready) |
|
|
2038 | { |
1688 | struct transfer_args ta; |
2039 | struct coro_transfer_args ta; |
1689 | |
2040 | |
1690 | prepare_cede (aTHX_ &ta); |
2041 | prepare_cede_notself (aTHX_ &ta); |
1691 | |
|
|
1692 | if (expect_true (ta.prev != ta.next)) |
|
|
1693 | { |
|
|
1694 | TRANSFER (ta, 1); |
2042 | TRANSFER (ta, 1); |
1695 | return 1; |
2043 | return 1; |
1696 | } |
2044 | } |
1697 | else |
2045 | else |
1698 | return 0; |
2046 | return 0; |
1699 | } |
2047 | } |
1700 | |
2048 | |
1701 | static int |
2049 | static void |
1702 | api_cede_notself (void) |
|
|
1703 | { |
|
|
1704 | dTHX; |
|
|
1705 | struct transfer_args ta; |
|
|
1706 | |
|
|
1707 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1708 | { |
|
|
1709 | TRANSFER (ta, 1); |
|
|
1710 | return 1; |
|
|
1711 | } |
|
|
1712 | else |
|
|
1713 | return 0; |
|
|
1714 | } |
|
|
1715 | |
|
|
1716 | static void |
|
|
1717 | api_trace (SV *coro_sv, int flags) |
2050 | api_trace (pTHX_ SV *coro_sv, int flags) |
1718 | { |
2051 | { |
1719 | dTHX; |
|
|
1720 | struct coro *coro = SvSTATE (coro_sv); |
2052 | struct coro *coro = SvSTATE (coro_sv); |
|
|
2053 | |
|
|
2054 | if (coro->flags & CF_RUNNING) |
|
|
2055 | croak ("cannot enable tracing on a running coroutine, caught"); |
1721 | |
2056 | |
1722 | if (flags & CC_TRACE) |
2057 | if (flags & CC_TRACE) |
1723 | { |
2058 | { |
1724 | if (!coro->cctx) |
2059 | if (!coro->cctx) |
1725 | coro->cctx = cctx_new_run (); |
2060 | coro->cctx = cctx_new_run (); |
1726 | else if (!(coro->cctx->flags & CC_TRACE)) |
2061 | else if (!(coro->cctx->flags & CC_TRACE)) |
1727 | croak ("cannot enable tracing on coroutine with custom stack"); |
2062 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1728 | |
2063 | |
1729 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
2064 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1730 | } |
2065 | } |
1731 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
2066 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1732 | { |
2067 | { |
… | |
… | |
1737 | else |
2072 | else |
1738 | coro->slot->runops = RUNOPS_DEFAULT; |
2073 | coro->slot->runops = RUNOPS_DEFAULT; |
1739 | } |
2074 | } |
1740 | } |
2075 | } |
1741 | |
2076 | |
1742 | #if 0 |
2077 | static void |
|
|
2078 | coro_push_av (pTHX_ AV *av, I32 gimme_v) |
|
|
2079 | { |
|
|
2080 | if (AvFILLp (av) >= 0 && gimme_v != G_VOID) |
|
|
2081 | { |
|
|
2082 | dSP; |
|
|
2083 | |
|
|
2084 | if (gimme_v == G_SCALAR) |
|
|
2085 | XPUSHs (AvARRAY (av)[AvFILLp (av)]); |
|
|
2086 | else |
|
|
2087 | { |
|
|
2088 | int i; |
|
|
2089 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2090 | |
|
|
2091 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2092 | PUSHs (AvARRAY (av)[i]); |
|
|
2093 | } |
|
|
2094 | |
|
|
2095 | PUTBACK; |
|
|
2096 | } |
|
|
2097 | } |
|
|
2098 | |
|
|
2099 | static void |
|
|
2100 | coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb) |
|
|
2101 | { |
|
|
2102 | if (!coro->on_destroy) |
|
|
2103 | coro->on_destroy = newAV (); |
|
|
2104 | |
|
|
2105 | av_push (coro->on_destroy, cb); |
|
|
2106 | } |
|
|
2107 | |
|
|
2108 | static void |
|
|
2109 | slf_destroy_join (pTHX_ struct CoroSLF *frame) |
|
|
2110 | { |
|
|
2111 | SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv); |
|
|
2112 | } |
|
|
2113 | |
1743 | static int |
2114 | static int |
1744 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
2115 | slf_check_join (pTHX_ struct CoroSLF *frame) |
1745 | { |
2116 | { |
1746 | AV *padlist; |
2117 | struct coro *coro = (struct coro *)frame->data; |
1747 | AV *av = (AV *)mg->mg_obj; |
|
|
1748 | |
2118 | |
1749 | abort (); |
2119 | if (!coro->status) |
|
|
2120 | return 1; |
|
|
2121 | |
|
|
2122 | frame->destroy = 0; |
|
|
2123 | |
|
|
2124 | coro_push_av (aTHX_ coro->status, GIMME_V); |
|
|
2125 | |
|
|
2126 | SvREFCNT_dec ((SV *)coro->hv); |
1750 | |
2127 | |
1751 | return 0; |
2128 | return 0; |
1752 | } |
2129 | } |
1753 | |
2130 | |
1754 | static MGVTBL coro_gensub_vtbl = { |
2131 | static void |
1755 | 0, 0, 0, 0, |
2132 | slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1756 | coro_gensub_free |
2133 | { |
1757 | }; |
2134 | struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef); |
1758 | #endif |
2135 | |
|
|
2136 | if (items > 1) |
|
|
2137 | croak ("join called with too many arguments"); |
|
|
2138 | |
|
|
2139 | if (coro->status) |
|
|
2140 | frame->prepare = prepare_nop; |
|
|
2141 | else |
|
|
2142 | { |
|
|
2143 | coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current))); |
|
|
2144 | frame->prepare = prepare_schedule; |
|
|
2145 | } |
|
|
2146 | |
|
|
2147 | frame->check = slf_check_join; |
|
|
2148 | frame->destroy = slf_destroy_join; |
|
|
2149 | frame->data = (void *)coro; |
|
|
2150 | SvREFCNT_inc (coro->hv); |
|
|
2151 | } |
|
|
2152 | |
|
|
2153 | static void |
|
|
2154 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
2155 | { |
|
|
2156 | AV *od = coro->on_destroy; |
|
|
2157 | |
|
|
2158 | if (!od) |
|
|
2159 | return; |
|
|
2160 | |
|
|
2161 | coro->on_destroy = 0; |
|
|
2162 | sv_2mortal ((SV *)od); |
|
|
2163 | |
|
|
2164 | while (AvFILLp (od) >= 0) |
|
|
2165 | { |
|
|
2166 | SV *cb = sv_2mortal (av_pop (od)); |
|
|
2167 | |
|
|
2168 | /* coro hv's (and only hv's at the moment) are supported as well */ |
|
|
2169 | if (SvSTATEhv_p (aTHX_ cb)) |
|
|
2170 | api_ready (aTHX_ cb); |
|
|
2171 | else |
|
|
2172 | { |
|
|
2173 | dSP; /* don't disturb outer sp */ |
|
|
2174 | PUSHMARK (SP); |
|
|
2175 | |
|
|
2176 | if (coro->status) |
|
|
2177 | { |
|
|
2178 | PUTBACK; |
|
|
2179 | coro_push_av (aTHX_ coro->status, G_ARRAY); |
|
|
2180 | SPAGAIN; |
|
|
2181 | } |
|
|
2182 | |
|
|
2183 | PUTBACK; |
|
|
2184 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2185 | } |
|
|
2186 | } |
|
|
2187 | } |
|
|
2188 | |
|
|
2189 | static void |
|
|
2190 | coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2191 | { |
|
|
2192 | AV *av; |
|
|
2193 | |
|
|
2194 | if (coro->status) |
|
|
2195 | { |
|
|
2196 | av = coro->status; |
|
|
2197 | av_clear (av); |
|
|
2198 | } |
|
|
2199 | else |
|
|
2200 | av = coro->status = newAV (); |
|
|
2201 | |
|
|
2202 | /* items are actually not so common, so optimise for this case */ |
|
|
2203 | if (items) |
|
|
2204 | { |
|
|
2205 | int i; |
|
|
2206 | |
|
|
2207 | av_extend (av, items - 1); |
|
|
2208 | |
|
|
2209 | for (i = 0; i < items; ++i) |
|
|
2210 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
2211 | } |
|
|
2212 | } |
|
|
2213 | |
|
|
2214 | static void |
|
|
2215 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
|
|
2216 | { |
|
|
2217 | av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */ |
|
|
2218 | api_ready (aTHX_ sv_manager); |
|
|
2219 | |
|
|
2220 | frame->prepare = prepare_schedule; |
|
|
2221 | frame->check = slf_check_repeat; |
|
|
2222 | |
|
|
2223 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
2224 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
2225 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2226 | } |
|
|
2227 | |
|
|
2228 | static void |
|
|
2229 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2230 | { |
|
|
2231 | HV *coro_hv = (HV *)SvRV (coro_current); |
|
|
2232 | |
|
|
2233 | coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items); |
|
|
2234 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2235 | } |
|
|
2236 | |
|
|
2237 | static void |
|
|
2238 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2239 | { |
|
|
2240 | HV *coro_hv; |
|
|
2241 | struct coro *coro; |
|
|
2242 | |
|
|
2243 | if (items <= 0) |
|
|
2244 | croak ("Coro::cancel called without coro object,"); |
|
|
2245 | |
|
|
2246 | coro = SvSTATE (arg [0]); |
|
|
2247 | coro_hv = coro->hv; |
|
|
2248 | |
|
|
2249 | coro_set_status (aTHX_ coro, arg + 1, items - 1); |
|
|
2250 | |
|
|
2251 | if (ecb_expect_false (coro->flags & CF_NOCANCEL)) |
|
|
2252 | { |
|
|
2253 | /* coro currently busy cancelling something, so just notify it */ |
|
|
2254 | coro->slf_frame.data = (void *)coro; |
|
|
2255 | |
|
|
2256 | frame->prepare = prepare_nop; |
|
|
2257 | frame->check = slf_check_nop; |
|
|
2258 | } |
|
|
2259 | else if (coro_hv == (HV *)SvRV (coro_current)) |
|
|
2260 | { |
|
|
2261 | /* cancelling the current coro is allowed, and equals terminate */ |
|
|
2262 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2263 | } |
|
|
2264 | else |
|
|
2265 | { |
|
|
2266 | struct coro *self = SvSTATE_current; |
|
|
2267 | |
|
|
2268 | if (!self) |
|
|
2269 | croak ("Coro::cancel called outside of thread content,"); |
|
|
2270 | |
|
|
2271 | /* otherwise we cancel directly, purely for speed reasons |
|
|
2272 | * unfortunately, this requires some magic trickery, as |
|
|
2273 | * somebody else could cancel us, so we have to fight the cancellation. |
|
|
2274 | * this is ugly, and hopefully fully worth the extra speed. |
|
|
2275 | * besides, I can't get the slow-but-safe version working... |
|
|
2276 | */ |
|
|
2277 | slf_frame.data = 0; |
|
|
2278 | self->flags |= CF_NOCANCEL; |
|
|
2279 | coro_state_destroy (aTHX_ coro); |
|
|
2280 | self->flags &= ~CF_NOCANCEL; |
|
|
2281 | |
|
|
2282 | if (slf_frame.data) |
|
|
2283 | { |
|
|
2284 | /* while we were busy we have been cancelled, so terminate */ |
|
|
2285 | slf_init_terminate_cancel_common (aTHX_ frame, self->hv); |
|
|
2286 | } |
|
|
2287 | else |
|
|
2288 | { |
|
|
2289 | frame->prepare = prepare_nop; |
|
|
2290 | frame->check = slf_check_nop; |
|
|
2291 | } |
|
|
2292 | } |
|
|
2293 | } |
|
|
2294 | |
|
|
2295 | static int |
|
|
2296 | slf_check_safe_cancel (pTHX_ struct CoroSLF *frame) |
|
|
2297 | { |
|
|
2298 | frame->prepare = 0; |
|
|
2299 | coro_unwind_stacks (aTHX); |
|
|
2300 | |
|
|
2301 | slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current)); |
|
|
2302 | |
|
|
2303 | return 1; |
|
|
2304 | } |
|
|
2305 | |
|
|
2306 | static int |
|
|
2307 | safe_cancel (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2308 | { |
|
|
2309 | if (coro->cctx) |
|
|
2310 | croak ("coro inside C callback, unable to cancel at this time, caught"); |
|
|
2311 | |
|
|
2312 | if (coro->flags & CF_NEW) |
|
|
2313 | { |
|
|
2314 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2315 | coro_state_destroy (aTHX_ coro); |
|
|
2316 | } |
|
|
2317 | else |
|
|
2318 | { |
|
|
2319 | if (!coro->slf_frame.prepare) |
|
|
2320 | croak ("coro outside an SLF function, unable to cancel at this time, caught"); |
|
|
2321 | |
|
|
2322 | slf_destroy (aTHX_ coro); |
|
|
2323 | |
|
|
2324 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2325 | coro->slf_frame.prepare = prepare_nop; |
|
|
2326 | coro->slf_frame.check = slf_check_safe_cancel; |
|
|
2327 | |
|
|
2328 | api_ready (aTHX_ (SV *)coro->hv); |
|
|
2329 | } |
|
|
2330 | |
|
|
2331 | return 1; |
|
|
2332 | } |
|
|
2333 | |
|
|
2334 | /*****************************************************************************/ |
|
|
2335 | /* async pool handler */ |
|
|
2336 | |
|
|
2337 | static int |
|
|
2338 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
2339 | { |
|
|
2340 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2341 | struct coro *coro = (struct coro *)frame->data; |
|
|
2342 | |
|
|
2343 | if (!coro->invoke_cb) |
|
|
2344 | return 1; /* loop till we have invoke */ |
|
|
2345 | else |
|
|
2346 | { |
|
|
2347 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2348 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2349 | |
|
|
2350 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2351 | |
|
|
2352 | { |
|
|
2353 | dSP; |
|
|
2354 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
2355 | PUTBACK; |
|
|
2356 | } |
|
|
2357 | |
|
|
2358 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
2359 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
2360 | coro->invoke_av = 0; |
|
|
2361 | |
|
|
2362 | return 0; |
|
|
2363 | } |
|
|
2364 | } |
|
|
2365 | |
|
|
2366 | static void |
|
|
2367 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2368 | { |
|
|
2369 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2370 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2371 | |
|
|
2372 | if (ecb_expect_true (coro->saved_deffh)) |
|
|
2373 | { |
|
|
2374 | /* subsequent iteration */ |
|
|
2375 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2376 | coro->saved_deffh = 0; |
|
|
2377 | |
|
|
2378 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2379 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2380 | { |
|
|
2381 | slf_init_terminate_cancel_common (aTHX_ frame, hv); |
|
|
2382 | return; |
|
|
2383 | } |
|
|
2384 | else |
|
|
2385 | { |
|
|
2386 | av_clear (GvAV (PL_defgv)); |
|
|
2387 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
2388 | |
|
|
2389 | coro->prio = 0; |
|
|
2390 | |
|
|
2391 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2392 | api_trace (aTHX_ coro_current, 0); |
|
|
2393 | |
|
|
2394 | frame->prepare = prepare_schedule; |
|
|
2395 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2396 | } |
|
|
2397 | } |
|
|
2398 | else |
|
|
2399 | { |
|
|
2400 | /* first iteration, simply fall through */ |
|
|
2401 | frame->prepare = prepare_nop; |
|
|
2402 | } |
|
|
2403 | |
|
|
2404 | frame->check = slf_check_pool_handler; |
|
|
2405 | frame->data = (void *)coro; |
|
|
2406 | } |
|
|
2407 | |
|
|
2408 | /*****************************************************************************/ |
|
|
2409 | /* rouse callback */ |
|
|
2410 | |
|
|
2411 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2412 | |
|
|
2413 | static void |
|
|
2414 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2415 | { |
|
|
2416 | dXSARGS; |
|
|
2417 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2418 | |
|
|
2419 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2420 | { |
|
|
2421 | /* first call, set args */ |
|
|
2422 | SV *coro = SvRV (data); |
|
|
2423 | AV *av = newAV (); |
|
|
2424 | |
|
|
2425 | SvRV_set (data, (SV *)av); |
|
|
2426 | |
|
|
2427 | /* better take a full copy of the arguments */ |
|
|
2428 | while (items--) |
|
|
2429 | av_store (av, items, newSVsv (ST (items))); |
|
|
2430 | |
|
|
2431 | api_ready (aTHX_ coro); |
|
|
2432 | SvREFCNT_dec (coro); |
|
|
2433 | } |
|
|
2434 | |
|
|
2435 | XSRETURN_EMPTY; |
|
|
2436 | } |
|
|
2437 | |
|
|
2438 | static int |
|
|
2439 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2440 | { |
|
|
2441 | SV *data = (SV *)frame->data; |
|
|
2442 | |
|
|
2443 | if (CORO_THROW) |
|
|
2444 | return 0; |
|
|
2445 | |
|
|
2446 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2447 | return 1; |
|
|
2448 | |
|
|
2449 | /* now push all results on the stack */ |
|
|
2450 | { |
|
|
2451 | dSP; |
|
|
2452 | AV *av = (AV *)SvRV (data); |
|
|
2453 | int i; |
|
|
2454 | |
|
|
2455 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2456 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2457 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2458 | |
|
|
2459 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2460 | AvFILLp (av) = -1; |
|
|
2461 | av_undef (av); |
|
|
2462 | |
|
|
2463 | PUTBACK; |
|
|
2464 | } |
|
|
2465 | |
|
|
2466 | return 0; |
|
|
2467 | } |
|
|
2468 | |
|
|
2469 | static void |
|
|
2470 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2471 | { |
|
|
2472 | SV *cb; |
|
|
2473 | |
|
|
2474 | if (items) |
|
|
2475 | cb = arg [0]; |
|
|
2476 | else |
|
|
2477 | { |
|
|
2478 | struct coro *coro = SvSTATE_current; |
|
|
2479 | |
|
|
2480 | if (!coro->rouse_cb) |
|
|
2481 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2482 | |
|
|
2483 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2484 | coro->rouse_cb = 0; |
|
|
2485 | } |
|
|
2486 | |
|
|
2487 | if (!SvROK (cb) |
|
|
2488 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2489 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2490 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2491 | |
|
|
2492 | { |
|
|
2493 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
|
|
2494 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2495 | |
|
|
2496 | frame->data = (void *)data; |
|
|
2497 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2498 | frame->check = slf_check_rouse_wait; |
|
|
2499 | } |
|
|
2500 | } |
|
|
2501 | |
|
|
2502 | static SV * |
|
|
2503 | coro_new_rouse_cb (pTHX) |
|
|
2504 | { |
|
|
2505 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2506 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2507 | SV *data = newRV_inc ((SV *)hv); |
|
|
2508 | SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2509 | |
|
|
2510 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2511 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2512 | |
|
|
2513 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2514 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2515 | |
|
|
2516 | return cb; |
|
|
2517 | } |
|
|
2518 | |
|
|
2519 | /*****************************************************************************/ |
|
|
2520 | /* schedule-like-function opcode (SLF) */ |
|
|
2521 | |
|
|
2522 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2523 | static const CV *slf_cv; |
|
|
2524 | static SV **slf_argv; |
|
|
2525 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2526 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2527 | |
|
|
2528 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2529 | /* recreate the stack frame as perl will on following calls */ |
|
|
2530 | /* since entersub cleared the stack */ |
|
|
2531 | static OP * |
|
|
2532 | pp_restore (pTHX) |
|
|
2533 | { |
|
|
2534 | int i; |
|
|
2535 | SV **SP = PL_stack_base + slf_ax; |
|
|
2536 | |
|
|
2537 | PUSHMARK (SP); |
|
|
2538 | |
|
|
2539 | EXTEND (SP, slf_argc + 1); |
|
|
2540 | |
|
|
2541 | for (i = 0; i < slf_argc; ++i) |
|
|
2542 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2543 | |
|
|
2544 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2545 | |
|
|
2546 | RETURNOP (slf_restore.op_first); |
|
|
2547 | } |
|
|
2548 | |
|
|
2549 | static void |
|
|
2550 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2551 | { |
|
|
2552 | SV **arg = (SV **)slf_frame.data; |
|
|
2553 | |
|
|
2554 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2555 | } |
|
|
2556 | |
|
|
2557 | static void |
|
|
2558 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2559 | { |
|
|
2560 | if (items != 2) |
|
|
2561 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2562 | |
|
|
2563 | frame->prepare = slf_prepare_transfer; |
|
|
2564 | frame->check = slf_check_nop; |
|
|
2565 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2566 | } |
|
|
2567 | |
|
|
2568 | static void |
|
|
2569 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2570 | { |
|
|
2571 | frame->prepare = prepare_schedule; |
|
|
2572 | frame->check = slf_check_nop; |
|
|
2573 | } |
|
|
2574 | |
|
|
2575 | static void |
|
|
2576 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2577 | { |
|
|
2578 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2579 | |
|
|
2580 | SvREFCNT_inc_NN (next->hv); |
|
|
2581 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2582 | } |
|
|
2583 | |
|
|
2584 | static void |
|
|
2585 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2586 | { |
|
|
2587 | if (!items) |
|
|
2588 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2589 | |
|
|
2590 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2591 | frame->prepare = slf_prepare_schedule_to; |
|
|
2592 | frame->check = slf_check_nop; |
|
|
2593 | } |
|
|
2594 | |
|
|
2595 | static void |
|
|
2596 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2597 | { |
|
|
2598 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2599 | |
|
|
2600 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2601 | } |
|
|
2602 | |
|
|
2603 | static void |
|
|
2604 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2605 | { |
|
|
2606 | frame->prepare = prepare_cede; |
|
|
2607 | frame->check = slf_check_nop; |
|
|
2608 | } |
|
|
2609 | |
|
|
2610 | static void |
|
|
2611 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2612 | { |
|
|
2613 | frame->prepare = prepare_cede_notself; |
|
|
2614 | frame->check = slf_check_nop; |
|
|
2615 | } |
|
|
2616 | |
|
|
2617 | /* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ |
|
|
2618 | static void |
|
|
2619 | slf_destroy (pTHX_ struct coro *coro) |
|
|
2620 | { |
|
|
2621 | struct CoroSLF frame = coro->slf_frame; |
|
|
2622 | |
|
|
2623 | /* |
|
|
2624 | * The on_destroy below most likely is from an SLF call. |
|
|
2625 | * Since by definition the SLF call will not finish when we destroy |
|
|
2626 | * the coro, we will have to force-finish it here, otherwise |
|
|
2627 | * cleanup functions cannot call SLF functions. |
|
|
2628 | */ |
|
|
2629 | coro->slf_frame.prepare = 0; |
|
|
2630 | |
|
|
2631 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
2632 | if (frame.destroy && frame.prepare && !PL_dirty) |
|
|
2633 | frame.destroy (aTHX_ &frame); |
|
|
2634 | } |
|
|
2635 | |
|
|
2636 | /* |
|
|
2637 | * these not obviously related functions are all rolled into one |
|
|
2638 | * function to increase chances that they all will call transfer with the same |
|
|
2639 | * stack offset |
|
|
2640 | * SLF stands for "schedule-like-function". |
|
|
2641 | */ |
|
|
2642 | static OP * |
|
|
2643 | pp_slf (pTHX) |
|
|
2644 | { |
|
|
2645 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2646 | |
|
|
2647 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2648 | /* the latter happens when a new coro has been started */ |
|
|
2649 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2650 | if (ecb_expect_true (!slf_frame.prepare)) |
|
|
2651 | { |
|
|
2652 | /* first iteration */ |
|
|
2653 | dSP; |
|
|
2654 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2655 | int items = SP - arg; /* args without function object */ |
|
|
2656 | SV *gv = *sp; |
|
|
2657 | |
|
|
2658 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2659 | /* for us, divert to the real entersub */ |
|
|
2660 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2661 | || !GvCV (gv) |
|
|
2662 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2663 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2664 | |
|
|
2665 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2666 | { |
|
|
2667 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2668 | AV *av = GvAV (PL_defgv); |
|
|
2669 | arg = AvARRAY (av); |
|
|
2670 | items = AvFILLp (av) + 1; |
|
|
2671 | } |
|
|
2672 | |
|
|
2673 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2674 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2675 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2676 | |
|
|
2677 | /* pop args */ |
|
|
2678 | SP = PL_stack_base + POPMARK; |
|
|
2679 | |
|
|
2680 | PUTBACK; |
|
|
2681 | } |
|
|
2682 | |
|
|
2683 | /* now that we have a slf_frame, interpret it! */ |
|
|
2684 | /* we use a callback system not to make the code needlessly */ |
|
|
2685 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2686 | |
|
|
2687 | do |
|
|
2688 | { |
|
|
2689 | struct coro_transfer_args ta; |
|
|
2690 | |
|
|
2691 | slf_frame.prepare (aTHX_ &ta); |
|
|
2692 | TRANSFER (ta, 0); |
|
|
2693 | |
|
|
2694 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2695 | } |
|
|
2696 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2697 | |
|
|
2698 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2699 | |
|
|
2700 | /* exception handling */ |
|
|
2701 | if (ecb_expect_false (CORO_THROW)) |
|
|
2702 | { |
|
|
2703 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2704 | |
|
|
2705 | CORO_THROW = 0; |
|
|
2706 | sv_setsv (ERRSV, exception); |
|
|
2707 | croak (0); |
|
|
2708 | } |
|
|
2709 | |
|
|
2710 | /* return value handling - mostly like entersub */ |
|
|
2711 | /* make sure we put something on the stack in scalar context */ |
|
|
2712 | if (GIMME_V == G_SCALAR |
|
|
2713 | && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1)) |
|
|
2714 | { |
|
|
2715 | dSP; |
|
|
2716 | SV **bot = PL_stack_base + checkmark; |
|
|
2717 | |
|
|
2718 | if (sp == bot) /* too few, push undef */ |
|
|
2719 | bot [1] = &PL_sv_undef; |
|
|
2720 | else /* too many, take last one */ |
|
|
2721 | bot [1] = *sp; |
|
|
2722 | |
|
|
2723 | SP = bot + 1; |
|
|
2724 | |
|
|
2725 | PUTBACK; |
|
|
2726 | } |
|
|
2727 | |
|
|
2728 | return NORMAL; |
|
|
2729 | } |
|
|
2730 | |
|
|
2731 | static void |
|
|
2732 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2733 | { |
|
|
2734 | int i; |
|
|
2735 | SV **arg = PL_stack_base + ax; |
|
|
2736 | int items = PL_stack_sp - arg + 1; |
|
|
2737 | |
|
|
2738 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2739 | |
|
|
2740 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2741 | && PL_op->op_ppaddr != pp_slf) |
|
|
2742 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2743 | |
|
|
2744 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2745 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2746 | slf_cv = cv; |
|
|
2747 | |
|
|
2748 | /* we patch the op, and then re-run the whole call */ |
|
|
2749 | /* we have to put the same argument on the stack for this to work */ |
|
|
2750 | /* and this will be done by pp_restore */ |
|
|
2751 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2752 | slf_restore.op_type = OP_CUSTOM; |
|
|
2753 | slf_restore.op_ppaddr = pp_restore; |
|
|
2754 | slf_restore.op_first = PL_op; |
|
|
2755 | |
|
|
2756 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2757 | |
|
|
2758 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2759 | { |
|
|
2760 | if (items > slf_arga) |
|
|
2761 | { |
|
|
2762 | slf_arga = items; |
|
|
2763 | Safefree (slf_argv); |
|
|
2764 | New (0, slf_argv, slf_arga, SV *); |
|
|
2765 | } |
|
|
2766 | |
|
|
2767 | slf_argc = items; |
|
|
2768 | |
|
|
2769 | for (i = 0; i < items; ++i) |
|
|
2770 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2771 | } |
|
|
2772 | else |
|
|
2773 | slf_argc = 0; |
|
|
2774 | |
|
|
2775 | PL_op->op_ppaddr = pp_slf; |
|
|
2776 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2777 | |
|
|
2778 | PL_op = (OP *)&slf_restore; |
|
|
2779 | } |
|
|
2780 | |
|
|
2781 | /*****************************************************************************/ |
|
|
2782 | /* dynamic wind */ |
|
|
2783 | |
|
|
2784 | static void |
|
|
2785 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2786 | { |
|
|
2787 | dSP; |
|
|
2788 | |
|
|
2789 | PUSHSTACK; |
|
|
2790 | |
|
|
2791 | PUSHMARK (SP); |
|
|
2792 | PUTBACK; |
|
|
2793 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2794 | SPAGAIN; |
|
|
2795 | |
|
|
2796 | POPSTACK; |
|
|
2797 | } |
|
|
2798 | |
|
|
2799 | static SV * |
|
|
2800 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2801 | { |
|
|
2802 | AV *av = *avp; |
|
|
2803 | SV *res = av_pop (av); |
|
|
2804 | |
|
|
2805 | if (AvFILLp (av) < 0) |
|
|
2806 | { |
|
|
2807 | *avp = 0; |
|
|
2808 | SvREFCNT_dec (av); |
|
|
2809 | } |
|
|
2810 | |
|
|
2811 | return res; |
|
|
2812 | } |
|
|
2813 | |
|
|
2814 | static void |
|
|
2815 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2816 | { |
|
|
2817 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2818 | SvREFCNT_dec (cb); |
|
|
2819 | } |
|
|
2820 | |
|
|
2821 | static void |
|
|
2822 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2823 | { |
|
|
2824 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2825 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2826 | } |
1759 | |
2827 | |
1760 | /*****************************************************************************/ |
2828 | /*****************************************************************************/ |
1761 | /* PerlIO::cede */ |
2829 | /* PerlIO::cede */ |
1762 | |
2830 | |
1763 | typedef struct |
2831 | typedef struct |
1764 | { |
2832 | { |
1765 | PerlIOBuf base; |
2833 | PerlIOBuf base; |
1766 | NV next, every; |
2834 | NV next, every; |
1767 | } PerlIOCede; |
2835 | } PerlIOCede; |
1768 | |
2836 | |
1769 | static IV |
2837 | static IV ecb_cold |
1770 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
2838 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
1771 | { |
2839 | { |
1772 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2840 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1773 | |
2841 | |
1774 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
2842 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
1775 | self->next = nvtime () + self->every; |
2843 | self->next = nvtime () + self->every; |
1776 | |
2844 | |
1777 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
2845 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
1778 | } |
2846 | } |
1779 | |
2847 | |
1780 | static SV * |
2848 | static SV * ecb_cold |
1781 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
2849 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
1782 | { |
2850 | { |
1783 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2851 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1784 | |
2852 | |
1785 | return newSVnv (self->every); |
2853 | return newSVnv (self->every); |
… | |
… | |
1791 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2859 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1792 | double now = nvtime (); |
2860 | double now = nvtime (); |
1793 | |
2861 | |
1794 | if (now >= self->next) |
2862 | if (now >= self->next) |
1795 | { |
2863 | { |
1796 | api_cede (); |
2864 | api_cede (aTHX); |
1797 | self->next = now + self->every; |
2865 | self->next = now + self->every; |
1798 | } |
2866 | } |
1799 | |
2867 | |
1800 | return PerlIOBuf_flush (aTHX_ f); |
2868 | return PerlIOBuf_flush (aTHX_ f); |
1801 | } |
2869 | } |
… | |
… | |
1831 | PerlIOBuf_get_cnt, |
2899 | PerlIOBuf_get_cnt, |
1832 | PerlIOBuf_set_ptrcnt, |
2900 | PerlIOBuf_set_ptrcnt, |
1833 | }; |
2901 | }; |
1834 | |
2902 | |
1835 | /*****************************************************************************/ |
2903 | /*****************************************************************************/ |
|
|
2904 | /* Coro::Semaphore & Coro::Signal */ |
1836 | |
2905 | |
1837 | static const CV *ssl_cv; /* for quick consistency check */ |
|
|
1838 | |
|
|
1839 | static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1840 | static SV *ssl_arg0; |
|
|
1841 | static SV *ssl_arg1; |
|
|
1842 | |
|
|
1843 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1844 | /* recreate the stack frame as perl will on following calls */ |
|
|
1845 | /* since entersub cleared the stack */ |
|
|
1846 | static OP * |
2906 | static SV * |
1847 | pp_restore (pTHX) |
2907 | coro_waitarray_new (pTHX_ int count) |
|
|
2908 | { |
|
|
2909 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2910 | AV *av = newAV (); |
|
|
2911 | SV **ary; |
|
|
2912 | |
|
|
2913 | /* unfortunately, building manually saves memory */ |
|
|
2914 | Newx (ary, 2, SV *); |
|
|
2915 | AvALLOC (av) = ary; |
|
|
2916 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2917 | AvARRAY (av) = ary; |
|
|
2918 | #else |
|
|
2919 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2920 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2921 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2922 | #endif |
|
|
2923 | AvMAX (av) = 1; |
|
|
2924 | AvFILLp (av) = 0; |
|
|
2925 | ary [0] = newSViv (count); |
|
|
2926 | |
|
|
2927 | return newRV_noinc ((SV *)av); |
|
|
2928 | } |
|
|
2929 | |
|
|
2930 | /* semaphore */ |
|
|
2931 | |
|
|
2932 | static void |
|
|
2933 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2934 | { |
|
|
2935 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2936 | IV count = SvIVX (count_sv); |
|
|
2937 | |
|
|
2938 | count += adjust; |
|
|
2939 | SvIVX (count_sv) = count; |
|
|
2940 | |
|
|
2941 | /* now wake up as many waiters as are expected to lock */ |
|
|
2942 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2943 | { |
|
|
2944 | SV *cb; |
|
|
2945 | |
|
|
2946 | /* swap first two elements so we can shift a waiter */ |
|
|
2947 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2948 | AvARRAY (av)[1] = count_sv; |
|
|
2949 | cb = av_shift (av); |
|
|
2950 | |
|
|
2951 | if (SvOBJECT (cb)) |
|
|
2952 | { |
|
|
2953 | api_ready (aTHX_ cb); |
|
|
2954 | --count; |
|
|
2955 | } |
|
|
2956 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2957 | { |
|
|
2958 | dSP; |
|
|
2959 | PUSHMARK (SP); |
|
|
2960 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2961 | PUTBACK; |
|
|
2962 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2963 | } |
|
|
2964 | |
|
|
2965 | SvREFCNT_dec (cb); |
|
|
2966 | } |
|
|
2967 | } |
|
|
2968 | |
|
|
2969 | static void |
|
|
2970 | coro_semaphore_destroy (pTHX_ struct CoroSLF *frame) |
|
|
2971 | { |
|
|
2972 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2973 | coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0); |
|
|
2974 | } |
|
|
2975 | |
|
|
2976 | static int |
|
|
2977 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2978 | { |
|
|
2979 | AV *av = (AV *)frame->data; |
|
|
2980 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2981 | SV *coro_hv = SvRV (coro_current); |
|
|
2982 | |
|
|
2983 | frame->destroy = 0; |
|
|
2984 | |
|
|
2985 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2986 | if (ecb_expect_false (CORO_THROW)) |
|
|
2987 | { |
|
|
2988 | /* we still might be responsible for the semaphore, so wake up others */ |
|
|
2989 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2990 | |
|
|
2991 | return 0; |
|
|
2992 | } |
|
|
2993 | else if (SvIVX (count_sv) > 0) |
|
|
2994 | { |
|
|
2995 | if (acquire) |
|
|
2996 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2997 | else |
|
|
2998 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2999 | |
|
|
3000 | return 0; |
|
|
3001 | } |
|
|
3002 | else |
|
|
3003 | { |
|
|
3004 | int i; |
|
|
3005 | /* if we were woken up but can't down, we look through the whole */ |
|
|
3006 | /* waiters list and only add us if we aren't in there already */ |
|
|
3007 | /* this avoids some degenerate memory usage cases */ |
|
|
3008 | for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */ |
|
|
3009 | if (AvARRAY (av)[i] == coro_hv) |
|
|
3010 | return 1; |
|
|
3011 | |
|
|
3012 | av_push (av, SvREFCNT_inc (coro_hv)); |
|
|
3013 | return 1; |
|
|
3014 | } |
|
|
3015 | } |
|
|
3016 | |
|
|
3017 | static int |
|
|
3018 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
3019 | { |
|
|
3020 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
3021 | } |
|
|
3022 | |
|
|
3023 | static int |
|
|
3024 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
3025 | { |
|
|
3026 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
3027 | } |
|
|
3028 | |
|
|
3029 | static void |
|
|
3030 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3031 | { |
|
|
3032 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3033 | |
|
|
3034 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3035 | { |
|
|
3036 | frame->data = (void *)av; |
|
|
3037 | frame->prepare = prepare_nop; |
|
|
3038 | } |
|
|
3039 | else |
|
|
3040 | { |
|
|
3041 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
3042 | |
|
|
3043 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
3044 | frame->prepare = prepare_schedule; |
|
|
3045 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
3046 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
3047 | frame->destroy = coro_semaphore_destroy; |
|
|
3048 | } |
|
|
3049 | } |
|
|
3050 | |
|
|
3051 | static void |
|
|
3052 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3053 | { |
|
|
3054 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3055 | frame->check = slf_check_semaphore_down; |
|
|
3056 | } |
|
|
3057 | |
|
|
3058 | static void |
|
|
3059 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3060 | { |
|
|
3061 | if (items >= 2) |
|
|
3062 | { |
|
|
3063 | /* callback form */ |
|
|
3064 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3065 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3066 | |
|
|
3067 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3068 | |
|
|
3069 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3070 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3071 | |
|
|
3072 | frame->prepare = prepare_nop; |
|
|
3073 | frame->check = slf_check_nop; |
|
|
3074 | } |
|
|
3075 | else |
|
|
3076 | { |
|
|
3077 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3078 | frame->check = slf_check_semaphore_wait; |
|
|
3079 | } |
|
|
3080 | } |
|
|
3081 | |
|
|
3082 | /* signal */ |
|
|
3083 | |
|
|
3084 | static void |
|
|
3085 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
3086 | { |
|
|
3087 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3088 | |
|
|
3089 | /* now signal count waiters */ |
|
|
3090 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3091 | { |
|
|
3092 | SV *cb; |
|
|
3093 | |
|
|
3094 | /* swap first two elements so we can shift a waiter */ |
|
|
3095 | cb = AvARRAY (av)[0]; |
|
|
3096 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3097 | AvARRAY (av)[1] = cb; |
|
|
3098 | |
|
|
3099 | cb = av_shift (av); |
|
|
3100 | |
|
|
3101 | if (SvTYPE (cb) == SVt_PVCV) |
|
|
3102 | { |
|
|
3103 | dSP; |
|
|
3104 | PUSHMARK (SP); |
|
|
3105 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
3106 | PUTBACK; |
|
|
3107 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
3108 | } |
|
|
3109 | else |
|
|
3110 | { |
|
|
3111 | api_ready (aTHX_ cb); |
|
|
3112 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
3113 | } |
|
|
3114 | |
|
|
3115 | SvREFCNT_dec (cb); |
|
|
3116 | |
|
|
3117 | --count; |
|
|
3118 | } |
|
|
3119 | } |
|
|
3120 | |
|
|
3121 | static int |
|
|
3122 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
3123 | { |
|
|
3124 | /* if we are about to throw, also stop waiting */ |
|
|
3125 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
3126 | } |
|
|
3127 | |
|
|
3128 | static void |
|
|
3129 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3130 | { |
|
|
3131 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3132 | |
|
|
3133 | if (items >= 2) |
|
|
3134 | { |
|
|
3135 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3136 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3137 | |
|
|
3138 | if (SvIVX (AvARRAY (av)[0])) |
|
|
3139 | coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */ |
|
|
3140 | |
|
|
3141 | frame->prepare = prepare_nop; |
|
|
3142 | frame->check = slf_check_nop; |
|
|
3143 | } |
|
|
3144 | else if (SvIVX (AvARRAY (av)[0])) |
|
|
3145 | { |
|
|
3146 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3147 | frame->prepare = prepare_nop; |
|
|
3148 | frame->check = slf_check_nop; |
|
|
3149 | } |
|
|
3150 | else |
|
|
3151 | { |
|
|
3152 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
3153 | |
|
|
3154 | av_push (av, waiter); |
|
|
3155 | |
|
|
3156 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
3157 | frame->prepare = prepare_schedule; |
|
|
3158 | frame->check = slf_check_signal_wait; |
|
|
3159 | } |
|
|
3160 | } |
|
|
3161 | |
|
|
3162 | /*****************************************************************************/ |
|
|
3163 | /* Coro::AIO */ |
|
|
3164 | |
|
|
3165 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
3166 | |
|
|
3167 | /* helper storage struct */ |
|
|
3168 | struct io_state |
|
|
3169 | { |
|
|
3170 | int errorno; |
|
|
3171 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
3172 | int laststatval; |
|
|
3173 | Stat_t statcache; |
|
|
3174 | }; |
|
|
3175 | |
|
|
3176 | static void |
|
|
3177 | coro_aio_callback (pTHX_ CV *cv) |
|
|
3178 | { |
|
|
3179 | dXSARGS; |
|
|
3180 | AV *state = (AV *)S_GENSUB_ARG; |
|
|
3181 | SV *coro = av_pop (state); |
|
|
3182 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
3183 | |
|
|
3184 | av_extend (state, items - 1); |
|
|
3185 | |
|
|
3186 | sv_upgrade (data_sv, SVt_PV); |
|
|
3187 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
3188 | SvPOK_only (data_sv); |
|
|
3189 | |
|
|
3190 | { |
|
|
3191 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3192 | |
|
|
3193 | data->errorno = errno; |
|
|
3194 | data->laststype = PL_laststype; |
|
|
3195 | data->laststatval = PL_laststatval; |
|
|
3196 | data->statcache = PL_statcache; |
|
|
3197 | } |
|
|
3198 | |
|
|
3199 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
3200 | { |
|
|
3201 | int i; |
|
|
3202 | |
|
|
3203 | for (i = 0; i < items; ++i) |
|
|
3204 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
3205 | } |
|
|
3206 | |
|
|
3207 | av_push (state, data_sv); |
|
|
3208 | |
|
|
3209 | api_ready (aTHX_ coro); |
|
|
3210 | SvREFCNT_dec (coro); |
|
|
3211 | SvREFCNT_dec ((AV *)state); |
|
|
3212 | } |
|
|
3213 | |
|
|
3214 | static int |
|
|
3215 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
3216 | { |
|
|
3217 | AV *state = (AV *)frame->data; |
|
|
3218 | |
|
|
3219 | /* if we are about to throw, return early */ |
|
|
3220 | /* this does not cancel the aio request, but at least */ |
|
|
3221 | /* it quickly returns */ |
|
|
3222 | if (CORO_THROW) |
|
|
3223 | return 0; |
|
|
3224 | |
|
|
3225 | /* one element that is an RV? repeat! */ |
|
|
3226 | if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV) |
|
|
3227 | return 1; |
|
|
3228 | |
|
|
3229 | /* restore status */ |
|
|
3230 | { |
|
|
3231 | SV *data_sv = av_pop (state); |
|
|
3232 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3233 | |
|
|
3234 | errno = data->errorno; |
|
|
3235 | PL_laststype = data->laststype; |
|
|
3236 | PL_laststatval = data->laststatval; |
|
|
3237 | PL_statcache = data->statcache; |
|
|
3238 | |
|
|
3239 | SvREFCNT_dec (data_sv); |
|
|
3240 | } |
|
|
3241 | |
|
|
3242 | /* push result values */ |
|
|
3243 | { |
|
|
3244 | dSP; |
|
|
3245 | int i; |
|
|
3246 | |
|
|
3247 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
3248 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
3249 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
3250 | |
|
|
3251 | PUTBACK; |
|
|
3252 | } |
|
|
3253 | |
|
|
3254 | return 0; |
|
|
3255 | } |
|
|
3256 | |
|
|
3257 | static void |
|
|
3258 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3259 | { |
|
|
3260 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
3261 | SV *coro_hv = SvRV (coro_current); |
|
|
3262 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
3263 | |
|
|
3264 | /* put our coroutine id on the state arg */ |
|
|
3265 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
3266 | |
|
|
3267 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
3268 | if (coro->prio) |
|
|
3269 | { |
|
|
3270 | dSP; |
|
|
3271 | |
|
|
3272 | static SV *prio_cv; |
|
|
3273 | static SV *prio_sv; |
|
|
3274 | |
|
|
3275 | if (ecb_expect_false (!prio_cv)) |
|
|
3276 | { |
|
|
3277 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
3278 | prio_sv = newSViv (0); |
|
|
3279 | } |
|
|
3280 | |
|
|
3281 | PUSHMARK (SP); |
|
|
3282 | sv_setiv (prio_sv, coro->prio); |
|
|
3283 | XPUSHs (prio_sv); |
|
|
3284 | |
|
|
3285 | PUTBACK; |
|
|
3286 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
3287 | } |
|
|
3288 | |
|
|
3289 | /* now call the original request */ |
|
|
3290 | { |
|
|
3291 | dSP; |
|
|
3292 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
3293 | int i; |
|
|
3294 | |
|
|
3295 | PUSHMARK (SP); |
|
|
3296 | |
|
|
3297 | /* first push all args to the stack */ |
|
|
3298 | EXTEND (SP, items + 1); |
|
|
3299 | |
|
|
3300 | for (i = 0; i < items; ++i) |
|
|
3301 | PUSHs (arg [i]); |
|
|
3302 | |
|
|
3303 | /* now push the callback closure */ |
|
|
3304 | PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
3305 | |
|
|
3306 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
3307 | PUTBACK; |
|
|
3308 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
3309 | } |
|
|
3310 | |
|
|
3311 | /* now that the request is going, we loop till we have a result */ |
|
|
3312 | frame->data = (void *)state; |
|
|
3313 | frame->prepare = prepare_schedule; |
|
|
3314 | frame->check = slf_check_aio_req; |
|
|
3315 | } |
|
|
3316 | |
|
|
3317 | static void |
|
|
3318 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
3319 | { |
|
|
3320 | dXSARGS; |
|
|
3321 | |
|
|
3322 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
3323 | |
|
|
3324 | XSRETURN_EMPTY; |
|
|
3325 | } |
|
|
3326 | |
|
|
3327 | /*****************************************************************************/ |
|
|
3328 | |
|
|
3329 | #if CORO_CLONE |
|
|
3330 | # include "clone.c" |
|
|
3331 | #endif |
|
|
3332 | |
|
|
3333 | /*****************************************************************************/ |
|
|
3334 | |
|
|
3335 | static SV * |
|
|
3336 | coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro) |
|
|
3337 | { |
|
|
3338 | SV *coro_sv; |
|
|
3339 | struct coro *coro; |
|
|
3340 | MAGIC *mg; |
|
|
3341 | HV *hv; |
|
|
3342 | SV *cb; |
|
|
3343 | int i; |
|
|
3344 | |
|
|
3345 | if (argc > 0) |
|
|
3346 | { |
|
|
3347 | cb = s_get_cv_croak (argv [0]); |
|
|
3348 | |
|
|
3349 | if (!is_coro) |
|
|
3350 | { |
|
|
3351 | if (CvISXSUB (cb)) |
|
|
3352 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
3353 | |
|
|
3354 | if (!CvROOT (cb)) |
|
|
3355 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3356 | } |
|
|
3357 | } |
|
|
3358 | |
|
|
3359 | Newz (0, coro, 1, struct coro); |
|
|
3360 | coro->args = newAV (); |
|
|
3361 | coro->flags = CF_NEW; |
|
|
3362 | |
|
|
3363 | if (coro_first) coro_first->prev = coro; |
|
|
3364 | coro->next = coro_first; |
|
|
3365 | coro_first = coro; |
|
|
3366 | |
|
|
3367 | coro->hv = hv = newHV (); |
|
|
3368 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
3369 | mg->mg_flags |= MGf_DUP; |
|
|
3370 | coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash); |
|
|
3371 | |
|
|
3372 | if (argc > 0) |
|
|
3373 | { |
|
|
3374 | av_extend (coro->args, argc + is_coro - 1); |
|
|
3375 | |
|
|
3376 | if (is_coro) |
|
|
3377 | { |
|
|
3378 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3379 | cb = (SV *)cv_coro_run; |
|
|
3380 | } |
|
|
3381 | |
|
|
3382 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3383 | |
|
|
3384 | for (i = 1; i < argc; i++) |
|
|
3385 | av_push (coro->args, newSVsv (argv [i])); |
|
|
3386 | } |
|
|
3387 | |
|
|
3388 | return coro_sv; |
|
|
3389 | } |
|
|
3390 | |
|
|
3391 | #ifndef __cplusplus |
|
|
3392 | ecb_cold XS(boot_Coro__State); |
|
|
3393 | #endif |
|
|
3394 | |
|
|
3395 | #if CORO_JIT |
|
|
3396 | |
|
|
3397 | static void ecb_noinline ecb_cold |
|
|
3398 | pushav_4uv (pTHX_ UV a, UV b, UV c, UV d) |
1848 | { |
3399 | { |
1849 | dSP; |
3400 | dSP; |
|
|
3401 | AV *av = newAV (); |
|
|
3402 | |
|
|
3403 | av_store (av, 3, newSVuv (d)); |
|
|
3404 | av_store (av, 2, newSVuv (c)); |
|
|
3405 | av_store (av, 1, newSVuv (b)); |
|
|
3406 | av_store (av, 0, newSVuv (a)); |
|
|
3407 | |
|
|
3408 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
3409 | |
|
|
3410 | PUTBACK; |
|
|
3411 | } |
|
|
3412 | |
|
|
3413 | static void ecb_noinline ecb_cold |
|
|
3414 | jit_init (pTHX) |
|
|
3415 | { |
|
|
3416 | dSP; |
|
|
3417 | SV *load, *save; |
|
|
3418 | char *map_base; |
|
|
3419 | char *load_ptr, *save_ptr; |
|
|
3420 | STRLEN load_len, save_len, map_len; |
|
|
3421 | int count; |
|
|
3422 | |
|
|
3423 | eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1); |
1850 | |
3424 | |
1851 | PUSHMARK (SP); |
3425 | PUSHMARK (SP); |
|
|
3426 | #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type)); |
|
|
3427 | #include "state.h" |
|
|
3428 | count = call_pv ("Coro::State::_jit", G_ARRAY); |
|
|
3429 | SPAGAIN; |
1852 | |
3430 | |
1853 | EXTEND (SP, 3); |
3431 | save = POPs; save_ptr = SvPVbyte (save, save_len); |
1854 | if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0; |
3432 | load = POPs; load_ptr = SvPVbyte (load, load_len); |
1855 | if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0; |
|
|
1856 | PUSHs ((SV *)CvGV (ssl_cv)); |
|
|
1857 | |
3433 | |
1858 | RETURNOP (ssl_restore.op_first); |
3434 | map_len = load_len + save_len + 16; |
1859 | } |
|
|
1860 | |
3435 | |
1861 | /* declare prototype */ |
3436 | map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
1862 | XS(XS_Coro__State__set_stacklevel); |
|
|
1863 | |
3437 | |
1864 | #define OPpENTERSUB_SSL 15 |
3438 | assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED)); |
1865 | |
3439 | |
1866 | static OP * |
3440 | load_perl_slots = (load_save_perl_slots_type)map_base; |
1867 | pp_set_stacklevel (pTHX) |
3441 | memcpy (map_base, load_ptr, load_len); |
1868 | { |
|
|
1869 | dSP; |
|
|
1870 | struct transfer_args ta; |
|
|
1871 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1872 | int items = SP - arg; /* args without function object */ |
|
|
1873 | |
3442 | |
1874 | /* do a quick consistency check on the "function" object, and if it isn't */ |
3443 | map_base += (load_len + 15) & ~15; |
1875 | /* for us, divert to the real entersub */ |
|
|
1876 | if (SvTYPE (*sp) != SVt_PVGV || CvXSUB (GvCV (*sp)) != XS_Coro__State__set_stacklevel) |
|
|
1877 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1878 | |
3444 | |
1879 | /* pop args */ |
3445 | save_perl_slots = (load_save_perl_slots_type)map_base; |
1880 | SP = PL_stack_base + POPMARK; |
3446 | memcpy (map_base, save_ptr, save_len); |
1881 | |
3447 | |
1882 | if (!(PL_op->op_flags & OPf_STACKED)) |
3448 | /* we are good citizens and try to make the page read-only, so the evil evil */ |
1883 | { |
3449 | /* hackers might have it a bit more difficult */ |
1884 | /* ampersand-form of call, use @_ instead of stack */ |
3450 | mprotect (map_base, map_len, PROT_READ | PROT_EXEC); |
1885 | AV *av = GvAV (PL_defgv); |
|
|
1886 | arg = AvARRAY (av); |
|
|
1887 | items = AvFILLp (av) + 1; |
|
|
1888 | } |
|
|
1889 | |
3451 | |
1890 | PUTBACK; |
3452 | PUTBACK; |
1891 | switch (PL_op->op_private & OPpENTERSUB_SSL) |
3453 | eval_pv ("undef &Coro::State::_jit", 1); |
1892 | { |
|
|
1893 | case 0: |
|
|
1894 | prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0])); |
|
|
1895 | break; |
|
|
1896 | |
|
|
1897 | case 1: |
|
|
1898 | if (items != 2) |
|
|
1899 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items); |
|
|
1900 | |
|
|
1901 | prepare_transfer (aTHX_ &ta, arg [0], arg [1]); |
|
|
1902 | break; |
|
|
1903 | |
|
|
1904 | case 2: |
|
|
1905 | prepare_schedule (aTHX_ &ta); |
|
|
1906 | break; |
|
|
1907 | |
|
|
1908 | case 3: |
|
|
1909 | prepare_cede (aTHX_ &ta); |
|
|
1910 | break; |
|
|
1911 | |
|
|
1912 | case 4: |
|
|
1913 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1914 | goto skip; |
|
|
1915 | |
|
|
1916 | break; |
|
|
1917 | } |
|
|
1918 | |
|
|
1919 | TRANSFER (ta, 0); |
|
|
1920 | SPAGAIN; |
|
|
1921 | |
|
|
1922 | skip: |
|
|
1923 | PUTBACK; |
|
|
1924 | SSL_TAIL; |
|
|
1925 | SPAGAIN; |
|
|
1926 | RETURN; |
|
|
1927 | } |
3454 | } |
|
|
3455 | |
|
|
3456 | #endif |
1928 | |
3457 | |
1929 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3458 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1930 | |
3459 | |
1931 | PROTOTYPES: DISABLE |
3460 | PROTOTYPES: DISABLE |
1932 | |
3461 | |
1933 | # these not obviously related functions are all rolled into the same xs |
|
|
1934 | # function to increase chances that they all will call transfer with the same |
|
|
1935 | # stack offset |
|
|
1936 | void |
|
|
1937 | _set_stacklevel (...) |
|
|
1938 | ALIAS: |
|
|
1939 | Coro::State::transfer = 1 |
|
|
1940 | Coro::schedule = 2 |
|
|
1941 | Coro::cede = 3 |
|
|
1942 | Coro::cede_notself = 4 |
|
|
1943 | CODE: |
|
|
1944 | { |
|
|
1945 | assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel)); |
|
|
1946 | |
|
|
1947 | assert (("FATAL: ssl call with illegal CV value", CvGV (cv))); |
|
|
1948 | ssl_cv = cv; |
|
|
1949 | |
|
|
1950 | /* we patch the op, and then re-run the whole call */ |
|
|
1951 | /* we have to put some dummy argument on the stack for this to work */ |
|
|
1952 | ssl_restore.op_next = (OP *)&ssl_restore; |
|
|
1953 | ssl_restore.op_type = OP_NULL; |
|
|
1954 | ssl_restore.op_ppaddr = pp_restore; |
|
|
1955 | ssl_restore.op_first = PL_op; |
|
|
1956 | |
|
|
1957 | ssl_arg0 = items > 0 ? SvREFCNT_inc (ST (0)) : 0; |
|
|
1958 | ssl_arg1 = items > 1 ? SvREFCNT_inc (ST (1)) : 0; |
|
|
1959 | |
|
|
1960 | PL_op->op_ppaddr = pp_set_stacklevel; |
|
|
1961 | PL_op->op_private = PL_op->op_private & ~OPpENTERSUB_SSL | ix; /* we potentially share our private flags with entersub */ |
|
|
1962 | |
|
|
1963 | PL_op = (OP *)&ssl_restore; |
|
|
1964 | } |
|
|
1965 | |
|
|
1966 | BOOT: |
3462 | BOOT: |
1967 | { |
3463 | { |
|
|
3464 | #define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl."); |
|
|
3465 | #include "state.h" |
1968 | #ifdef USE_ITHREADS |
3466 | #ifdef USE_ITHREADS |
1969 | MUTEX_INIT (&coro_lock); |
|
|
1970 | # if CORO_PTHREAD |
3467 | # if CORO_PTHREAD |
1971 | coro_thx = PERL_GET_CONTEXT; |
3468 | coro_thx = PERL_GET_CONTEXT; |
1972 | # endif |
3469 | # endif |
1973 | #endif |
3470 | #endif |
1974 | BOOT_PAGESIZE; |
3471 | /* perl defines these to check for existance first, but why it doesn't */ |
|
|
3472 | /* just create them one at init time is not clear to me, except for */ |
|
|
3473 | /* programs trying to delete them, but... */ |
|
|
3474 | /* anyway, we declare this as invalid and make sure they are initialised here */ |
|
|
3475 | DEFSV; |
|
|
3476 | ERRSV; |
|
|
3477 | |
|
|
3478 | cctx_current = cctx_new_empty (); |
1975 | |
3479 | |
1976 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
3480 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1977 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3481 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
1978 | |
3482 | |
1979 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
3483 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
… | |
… | |
1995 | main_top_env = PL_top_env; |
3499 | main_top_env = PL_top_env; |
1996 | |
3500 | |
1997 | while (main_top_env->je_prev) |
3501 | while (main_top_env->je_prev) |
1998 | main_top_env = main_top_env->je_prev; |
3502 | main_top_env = main_top_env->je_prev; |
1999 | |
3503 | |
2000 | coroapi.ver = CORO_API_VERSION; |
|
|
2001 | coroapi.rev = CORO_API_REVISION; |
|
|
2002 | coroapi.transfer = api_transfer; |
|
|
2003 | |
|
|
2004 | { |
3504 | { |
2005 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
3505 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
2006 | |
3506 | |
2007 | if (!svp) croak ("Time::HiRes is required"); |
3507 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
2008 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
3508 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
2009 | |
3509 | |
2010 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
3510 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
3511 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
2011 | } |
3512 | } |
2012 | |
3513 | |
|
|
3514 | coroapi.ver = CORO_API_VERSION; |
|
|
3515 | coroapi.rev = CORO_API_REVISION; |
|
|
3516 | |
|
|
3517 | coroapi.transfer = api_transfer; |
|
|
3518 | |
|
|
3519 | coroapi.sv_state = SvSTATE_; |
|
|
3520 | coroapi.execute_slf = api_execute_slf; |
|
|
3521 | coroapi.prepare_nop = prepare_nop; |
|
|
3522 | coroapi.prepare_schedule = prepare_schedule; |
|
|
3523 | coroapi.prepare_cede = prepare_cede; |
|
|
3524 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
3525 | |
|
|
3526 | time_init (aTHX); |
|
|
3527 | |
2013 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
3528 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
|
|
3529 | #if CORO_JIT |
|
|
3530 | PUTBACK; |
|
|
3531 | jit_init (aTHX); |
|
|
3532 | SPAGAIN; |
|
|
3533 | #endif |
2014 | } |
3534 | } |
2015 | |
3535 | |
2016 | SV * |
3536 | SV * |
2017 | new (char *klass, ...) |
3537 | new (SV *klass, ...) |
|
|
3538 | ALIAS: |
|
|
3539 | Coro::new = 1 |
2018 | CODE: |
3540 | CODE: |
2019 | { |
3541 | RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix); |
2020 | struct coro *coro; |
|
|
2021 | MAGIC *mg; |
|
|
2022 | HV *hv; |
|
|
2023 | int i; |
|
|
2024 | |
|
|
2025 | Newz (0, coro, 1, struct coro); |
|
|
2026 | coro->args = newAV (); |
|
|
2027 | coro->flags = CF_NEW; |
|
|
2028 | |
|
|
2029 | if (coro_first) coro_first->prev = coro; |
|
|
2030 | coro->next = coro_first; |
|
|
2031 | coro_first = coro; |
|
|
2032 | |
|
|
2033 | coro->hv = hv = newHV (); |
|
|
2034 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
2035 | mg->mg_flags |= MGf_DUP; |
|
|
2036 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
2037 | |
|
|
2038 | av_extend (coro->args, items - 1); |
|
|
2039 | for (i = 1; i < items; i++) |
|
|
2040 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2041 | } |
|
|
2042 | OUTPUT: |
|
|
2043 | RETVAL |
|
|
2044 | |
|
|
2045 | bool |
|
|
2046 | _destroy (SV *coro_sv) |
|
|
2047 | CODE: |
|
|
2048 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
2049 | OUTPUT: |
3542 | OUTPUT: |
2050 | RETVAL |
3543 | RETVAL |
2051 | |
3544 | |
2052 | void |
3545 | void |
2053 | _exit (int code) |
3546 | transfer (...) |
2054 | PROTOTYPE: $ |
3547 | PROTOTYPE: $$ |
2055 | CODE: |
3548 | CODE: |
2056 | _exit (code); |
3549 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
|
|
3550 | |
|
|
3551 | SV * |
|
|
3552 | clone (Coro::State coro) |
|
|
3553 | CODE: |
|
|
3554 | { |
|
|
3555 | #if CORO_CLONE |
|
|
3556 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3557 | MAGIC *mg; |
|
|
3558 | /* TODO: too much duplication */ |
|
|
3559 | ncoro->hv = newHV (); |
|
|
3560 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3561 | mg->mg_flags |= MGf_DUP; |
|
|
3562 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3563 | #else |
|
|
3564 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3565 | #endif |
|
|
3566 | } |
|
|
3567 | OUTPUT: |
|
|
3568 | RETVAL |
2057 | |
3569 | |
2058 | int |
3570 | int |
2059 | cctx_stacksize (int new_stacksize = 0) |
3571 | cctx_stacksize (int new_stacksize = 0) |
|
|
3572 | PROTOTYPE: ;$ |
2060 | CODE: |
3573 | CODE: |
2061 | RETVAL = cctx_stacksize; |
3574 | RETVAL = cctx_stacksize; |
2062 | if (new_stacksize) |
3575 | if (new_stacksize) |
2063 | { |
3576 | { |
2064 | cctx_stacksize = new_stacksize; |
3577 | cctx_stacksize = new_stacksize; |
… | |
… | |
2067 | OUTPUT: |
3580 | OUTPUT: |
2068 | RETVAL |
3581 | RETVAL |
2069 | |
3582 | |
2070 | int |
3583 | int |
2071 | cctx_max_idle (int max_idle = 0) |
3584 | cctx_max_idle (int max_idle = 0) |
|
|
3585 | PROTOTYPE: ;$ |
2072 | CODE: |
3586 | CODE: |
2073 | RETVAL = cctx_max_idle; |
3587 | RETVAL = cctx_max_idle; |
2074 | if (max_idle > 1) |
3588 | if (max_idle > 1) |
2075 | cctx_max_idle = max_idle; |
3589 | cctx_max_idle = max_idle; |
2076 | OUTPUT: |
3590 | OUTPUT: |
2077 | RETVAL |
3591 | RETVAL |
2078 | |
3592 | |
2079 | int |
3593 | int |
2080 | cctx_count () |
3594 | cctx_count () |
|
|
3595 | PROTOTYPE: |
2081 | CODE: |
3596 | CODE: |
2082 | RETVAL = cctx_count; |
3597 | RETVAL = cctx_count; |
2083 | OUTPUT: |
3598 | OUTPUT: |
2084 | RETVAL |
3599 | RETVAL |
2085 | |
3600 | |
2086 | int |
3601 | int |
2087 | cctx_idle () |
3602 | cctx_idle () |
|
|
3603 | PROTOTYPE: |
2088 | CODE: |
3604 | CODE: |
2089 | RETVAL = cctx_idle; |
3605 | RETVAL = cctx_idle; |
2090 | OUTPUT: |
3606 | OUTPUT: |
2091 | RETVAL |
3607 | RETVAL |
2092 | |
3608 | |
2093 | void |
3609 | void |
2094 | list () |
3610 | list () |
|
|
3611 | PROTOTYPE: |
2095 | PPCODE: |
3612 | PPCODE: |
2096 | { |
3613 | { |
2097 | struct coro *coro; |
3614 | struct coro *coro; |
2098 | for (coro = coro_first; coro; coro = coro->next) |
3615 | for (coro = coro_first; coro; coro = coro->next) |
2099 | if (coro->hv) |
3616 | if (coro->hv) |
2100 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
3617 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
2101 | } |
3618 | } |
2102 | |
3619 | |
… | |
… | |
2106 | eval = 1 |
3623 | eval = 1 |
2107 | CODE: |
3624 | CODE: |
2108 | { |
3625 | { |
2109 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
3626 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
2110 | { |
3627 | { |
2111 | struct coro temp; |
3628 | struct coro *current = SvSTATE_current; |
|
|
3629 | struct CoroSLF slf_save; |
2112 | |
3630 | |
2113 | if (!(coro->flags & CF_RUNNING)) |
3631 | if (current != coro) |
2114 | { |
3632 | { |
2115 | PUTBACK; |
3633 | PUTBACK; |
2116 | save_perl (aTHX_ &temp); |
3634 | save_perl (aTHX_ current); |
2117 | load_perl (aTHX_ coro); |
3635 | load_perl (aTHX_ coro); |
|
|
3636 | /* the coro is most likely in an active SLF call. |
|
|
3637 | * while not strictly required (the code we execute is |
|
|
3638 | * not allowed to call any SLF functions), it's cleaner |
|
|
3639 | * to reinitialise the slf_frame and restore it later. |
|
|
3640 | * This might one day allow us to actually do SLF calls |
|
|
3641 | * from code executed here. |
|
|
3642 | */ |
|
|
3643 | slf_save = slf_frame; |
|
|
3644 | slf_frame.prepare = 0; |
|
|
3645 | SPAGAIN; |
2118 | } |
3646 | } |
2119 | |
3647 | |
2120 | { |
|
|
2121 | dSP; |
|
|
2122 | ENTER; |
|
|
2123 | SAVETMPS; |
|
|
2124 | PUTBACK; |
|
|
2125 | PUSHSTACK; |
3648 | PUSHSTACK; |
|
|
3649 | |
2126 | PUSHMARK (SP); |
3650 | PUSHMARK (SP); |
|
|
3651 | PUTBACK; |
2127 | |
3652 | |
2128 | if (ix) |
3653 | if (ix) |
2129 | eval_sv (coderef, 0); |
3654 | eval_sv (coderef, 0); |
2130 | else |
3655 | else |
2131 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3656 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2132 | |
3657 | |
2133 | POPSTACK; |
3658 | POPSTACK; |
2134 | SPAGAIN; |
3659 | SPAGAIN; |
2135 | FREETMPS; |
|
|
2136 | LEAVE; |
|
|
2137 | PUTBACK; |
|
|
2138 | } |
|
|
2139 | |
3660 | |
2140 | if (!(coro->flags & CF_RUNNING)) |
3661 | if (current != coro) |
2141 | { |
3662 | { |
|
|
3663 | PUTBACK; |
|
|
3664 | slf_frame = slf_save; |
2142 | save_perl (aTHX_ coro); |
3665 | save_perl (aTHX_ coro); |
2143 | load_perl (aTHX_ &temp); |
3666 | load_perl (aTHX_ current); |
2144 | SPAGAIN; |
3667 | SPAGAIN; |
2145 | } |
3668 | } |
2146 | } |
3669 | } |
2147 | } |
3670 | } |
2148 | |
3671 | |
… | |
… | |
2151 | PROTOTYPE: $ |
3674 | PROTOTYPE: $ |
2152 | ALIAS: |
3675 | ALIAS: |
2153 | is_ready = CF_READY |
3676 | is_ready = CF_READY |
2154 | is_running = CF_RUNNING |
3677 | is_running = CF_RUNNING |
2155 | is_new = CF_NEW |
3678 | is_new = CF_NEW |
2156 | is_destroyed = CF_DESTROYED |
3679 | is_destroyed = CF_ZOMBIE |
|
|
3680 | is_zombie = CF_ZOMBIE |
|
|
3681 | is_suspended = CF_SUSPENDED |
2157 | CODE: |
3682 | CODE: |
2158 | RETVAL = boolSV (coro->flags & ix); |
3683 | RETVAL = boolSV (coro->flags & ix); |
2159 | OUTPUT: |
3684 | OUTPUT: |
2160 | RETVAL |
3685 | RETVAL |
2161 | |
3686 | |
2162 | void |
3687 | void |
2163 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
3688 | throw (SV *self, SV *exception = &PL_sv_undef) |
2164 | PROTOTYPE: $;$ |
3689 | PROTOTYPE: $;$ |
2165 | CODE: |
3690 | CODE: |
|
|
3691 | { |
|
|
3692 | struct coro *coro = SvSTATE (self); |
|
|
3693 | struct coro *current = SvSTATE_current; |
|
|
3694 | SV **exceptionp = coro == current ? &CORO_THROW : &coro->except; |
2166 | SvREFCNT_dec (self->throw); |
3695 | SvREFCNT_dec (*exceptionp); |
2167 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
3696 | SvGETMAGIC (exception); |
|
|
3697 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
|
|
3698 | |
|
|
3699 | api_ready (aTHX_ self); |
|
|
3700 | } |
2168 | |
3701 | |
2169 | void |
3702 | void |
2170 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3703 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3704 | PROTOTYPE: $;$ |
|
|
3705 | C_ARGS: aTHX_ coro, flags |
2171 | |
3706 | |
2172 | SV * |
3707 | SV * |
2173 | has_cctx (Coro::State coro) |
3708 | has_cctx (Coro::State coro) |
2174 | PROTOTYPE: $ |
3709 | PROTOTYPE: $ |
2175 | CODE: |
3710 | CODE: |
2176 | RETVAL = boolSV (!!coro->cctx); |
3711 | /* maybe manage the running flag differently */ |
|
|
3712 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
2177 | OUTPUT: |
3713 | OUTPUT: |
2178 | RETVAL |
3714 | RETVAL |
2179 | |
3715 | |
2180 | int |
3716 | int |
2181 | is_traced (Coro::State coro) |
3717 | is_traced (Coro::State coro) |
… | |
… | |
2199 | OUTPUT: |
3735 | OUTPUT: |
2200 | RETVAL |
3736 | RETVAL |
2201 | |
3737 | |
2202 | void |
3738 | void |
2203 | force_cctx () |
3739 | force_cctx () |
|
|
3740 | PROTOTYPE: |
2204 | CODE: |
3741 | CODE: |
2205 | struct coro *coro = SvSTATE (coro_current); |
|
|
2206 | coro->cctx->idle_sp = 0; |
3742 | cctx_current->idle_sp = 0; |
2207 | |
3743 | |
2208 | void |
3744 | void |
2209 | swap_defsv (Coro::State self) |
3745 | swap_defsv (Coro::State self) |
2210 | PROTOTYPE: $ |
3746 | PROTOTYPE: $ |
2211 | ALIAS: |
3747 | ALIAS: |
2212 | swap_defav = 1 |
3748 | swap_defav = 1 |
2213 | CODE: |
3749 | CODE: |
2214 | if (!self->slot) |
3750 | if (!self->slot) |
2215 | croak ("cannot swap state with coroutine that has no saved state"); |
3751 | croak ("cannot swap state with coroutine that has no saved state,"); |
2216 | else |
3752 | else |
2217 | { |
3753 | { |
2218 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
3754 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2219 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
3755 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2220 | |
3756 | |
2221 | SV *tmp = *src; *src = *dst; *dst = tmp; |
3757 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2222 | } |
3758 | } |
2223 | |
3759 | |
|
|
3760 | void |
|
|
3761 | cancel (Coro::State self) |
|
|
3762 | CODE: |
|
|
3763 | coro_state_destroy (aTHX_ self); |
|
|
3764 | |
|
|
3765 | SV * |
|
|
3766 | enable_times (int enabled = enable_times) |
|
|
3767 | CODE: |
|
|
3768 | { |
|
|
3769 | RETVAL = boolSV (enable_times); |
|
|
3770 | |
|
|
3771 | if (enabled != enable_times) |
|
|
3772 | { |
|
|
3773 | enable_times = enabled; |
|
|
3774 | |
|
|
3775 | coro_times_update (); |
|
|
3776 | (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current)); |
|
|
3777 | } |
|
|
3778 | } |
|
|
3779 | OUTPUT: |
|
|
3780 | RETVAL |
|
|
3781 | |
|
|
3782 | void |
|
|
3783 | times (Coro::State self) |
|
|
3784 | PPCODE: |
|
|
3785 | { |
|
|
3786 | struct coro *current = SvSTATE (coro_current); |
|
|
3787 | |
|
|
3788 | if (ecb_expect_false (current == self)) |
|
|
3789 | { |
|
|
3790 | coro_times_update (); |
|
|
3791 | coro_times_add (SvSTATE (coro_current)); |
|
|
3792 | } |
|
|
3793 | |
|
|
3794 | EXTEND (SP, 2); |
|
|
3795 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
|
|
3796 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
|
|
3797 | |
|
|
3798 | if (ecb_expect_false (current == self)) |
|
|
3799 | coro_times_sub (SvSTATE (coro_current)); |
|
|
3800 | } |
|
|
3801 | |
|
|
3802 | void |
|
|
3803 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
|
|
3804 | CODE: |
|
|
3805 | { |
|
|
3806 | struct coro *current = SvSTATE_current; |
|
|
3807 | |
|
|
3808 | if (current == coro) |
|
|
3809 | SWAP_SVS (current); |
|
|
3810 | |
|
|
3811 | if (!coro->swap_sv) |
|
|
3812 | coro->swap_sv = newAV (); |
|
|
3813 | |
|
|
3814 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv ))); |
|
|
3815 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv))); |
|
|
3816 | |
|
|
3817 | if (current == coro) |
|
|
3818 | SWAP_SVS (current); |
|
|
3819 | } |
|
|
3820 | |
|
|
3821 | |
2224 | MODULE = Coro::State PACKAGE = Coro |
3822 | MODULE = Coro::State PACKAGE = Coro |
2225 | |
3823 | |
2226 | BOOT: |
3824 | BOOT: |
2227 | { |
3825 | { |
2228 | int i; |
|
|
2229 | |
|
|
2230 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2231 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3826 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2232 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3827 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2233 | |
3828 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
2234 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
3829 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
2235 | SvREADONLY_on (coro_current); |
3830 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3831 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3832 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3833 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
|
|
3834 | |
|
|
3835 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
3836 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3837 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3838 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
2236 | |
3839 | |
2237 | coro_stash = gv_stashpv ("Coro", TRUE); |
3840 | coro_stash = gv_stashpv ("Coro", TRUE); |
2238 | |
3841 | |
2239 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3842 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
2240 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3843 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
2241 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
3844 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
2242 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
3845 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
2243 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
3846 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
2244 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
3847 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
2245 | |
|
|
2246 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
2247 | coro_ready[i] = newAV (); |
|
|
2248 | |
3848 | |
2249 | { |
3849 | { |
2250 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
3850 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2251 | |
3851 | |
2252 | coroapi.schedule = api_schedule; |
3852 | coroapi.schedule = api_schedule; |
|
|
3853 | coroapi.schedule_to = api_schedule_to; |
2253 | coroapi.cede = api_cede; |
3854 | coroapi.cede = api_cede; |
2254 | coroapi.cede_notself = api_cede_notself; |
3855 | coroapi.cede_notself = api_cede_notself; |
2255 | coroapi.ready = api_ready; |
3856 | coroapi.ready = api_ready; |
2256 | coroapi.is_ready = api_is_ready; |
3857 | coroapi.is_ready = api_is_ready; |
2257 | coroapi.nready = &coro_nready; |
3858 | coroapi.nready = coro_nready; |
2258 | coroapi.current = coro_current; |
3859 | coroapi.current = coro_current; |
2259 | |
3860 | |
2260 | GCoroAPI = &coroapi; |
3861 | /*GCoroAPI = &coroapi;*/ |
2261 | sv_setiv (sv, (IV)&coroapi); |
3862 | sv_setiv (sv, (IV)&coroapi); |
2262 | SvREADONLY_on (sv); |
3863 | SvREADONLY_on (sv); |
2263 | } |
3864 | } |
2264 | } |
3865 | } |
|
|
3866 | |
|
|
3867 | SV * |
|
|
3868 | async (...) |
|
|
3869 | PROTOTYPE: &@ |
|
|
3870 | CODE: |
|
|
3871 | RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); |
|
|
3872 | api_ready (aTHX_ RETVAL); |
|
|
3873 | OUTPUT: |
|
|
3874 | RETVAL |
|
|
3875 | |
|
|
3876 | void |
|
|
3877 | _destroy (Coro::State coro) |
|
|
3878 | CODE: |
|
|
3879 | /* used by the manager thread */ |
|
|
3880 | coro_state_destroy (aTHX_ coro); |
|
|
3881 | |
|
|
3882 | void |
|
|
3883 | on_destroy (Coro::State coro, SV *cb) |
|
|
3884 | CODE: |
|
|
3885 | coro_push_on_destroy (aTHX_ coro, newSVsv (cb)); |
|
|
3886 | |
|
|
3887 | void |
|
|
3888 | join (...) |
|
|
3889 | CODE: |
|
|
3890 | CORO_EXECUTE_SLF_XS (slf_init_join); |
|
|
3891 | |
|
|
3892 | void |
|
|
3893 | terminate (...) |
|
|
3894 | CODE: |
|
|
3895 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3896 | |
|
|
3897 | void |
|
|
3898 | cancel (...) |
|
|
3899 | CODE: |
|
|
3900 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
|
|
3901 | |
|
|
3902 | int |
|
|
3903 | safe_cancel (Coro::State self, ...) |
|
|
3904 | C_ARGS: aTHX_ self, &ST (1), items - 1 |
|
|
3905 | |
|
|
3906 | void |
|
|
3907 | schedule (...) |
|
|
3908 | CODE: |
|
|
3909 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3910 | |
|
|
3911 | void |
|
|
3912 | schedule_to (...) |
|
|
3913 | CODE: |
|
|
3914 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3915 | |
|
|
3916 | void |
|
|
3917 | cede_to (...) |
|
|
3918 | CODE: |
|
|
3919 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
3920 | |
|
|
3921 | void |
|
|
3922 | cede (...) |
|
|
3923 | CODE: |
|
|
3924 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
3925 | |
|
|
3926 | void |
|
|
3927 | cede_notself (...) |
|
|
3928 | CODE: |
|
|
3929 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2265 | |
3930 | |
2266 | void |
3931 | void |
2267 | _set_current (SV *current) |
3932 | _set_current (SV *current) |
2268 | PROTOTYPE: $ |
3933 | PROTOTYPE: $ |
2269 | CODE: |
3934 | CODE: |
… | |
… | |
2272 | |
3937 | |
2273 | void |
3938 | void |
2274 | _set_readyhook (SV *hook) |
3939 | _set_readyhook (SV *hook) |
2275 | PROTOTYPE: $ |
3940 | PROTOTYPE: $ |
2276 | CODE: |
3941 | CODE: |
2277 | LOCK; |
|
|
2278 | SvREFCNT_dec (coro_readyhook); |
3942 | SvREFCNT_dec (coro_readyhook); |
|
|
3943 | SvGETMAGIC (hook); |
|
|
3944 | if (SvOK (hook)) |
|
|
3945 | { |
2279 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
3946 | coro_readyhook = newSVsv (hook); |
2280 | UNLOCK; |
3947 | CORO_READYHOOK = invoke_sv_ready_hook_helper; |
|
|
3948 | } |
|
|
3949 | else |
|
|
3950 | { |
|
|
3951 | coro_readyhook = 0; |
|
|
3952 | CORO_READYHOOK = 0; |
|
|
3953 | } |
2281 | |
3954 | |
2282 | int |
3955 | int |
2283 | prio (Coro::State coro, int newprio = 0) |
3956 | prio (Coro::State coro, int newprio = 0) |
|
|
3957 | PROTOTYPE: $;$ |
2284 | ALIAS: |
3958 | ALIAS: |
2285 | nice = 1 |
3959 | nice = 1 |
2286 | CODE: |
3960 | CODE: |
2287 | { |
3961 | { |
2288 | RETVAL = coro->prio; |
3962 | RETVAL = coro->prio; |
… | |
… | |
2290 | if (items > 1) |
3964 | if (items > 1) |
2291 | { |
3965 | { |
2292 | if (ix) |
3966 | if (ix) |
2293 | newprio = coro->prio - newprio; |
3967 | newprio = coro->prio - newprio; |
2294 | |
3968 | |
2295 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
3969 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
2296 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
3970 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
2297 | |
3971 | |
2298 | coro->prio = newprio; |
3972 | coro->prio = newprio; |
2299 | } |
3973 | } |
2300 | } |
3974 | } |
2301 | OUTPUT: |
3975 | OUTPUT: |
… | |
… | |
2303 | |
3977 | |
2304 | SV * |
3978 | SV * |
2305 | ready (SV *self) |
3979 | ready (SV *self) |
2306 | PROTOTYPE: $ |
3980 | PROTOTYPE: $ |
2307 | CODE: |
3981 | CODE: |
2308 | RETVAL = boolSV (api_ready (self)); |
3982 | RETVAL = boolSV (api_ready (aTHX_ self)); |
2309 | OUTPUT: |
3983 | OUTPUT: |
2310 | RETVAL |
3984 | RETVAL |
2311 | |
3985 | |
2312 | int |
3986 | int |
2313 | nready (...) |
3987 | nready (...) |
… | |
… | |
2315 | CODE: |
3989 | CODE: |
2316 | RETVAL = coro_nready; |
3990 | RETVAL = coro_nready; |
2317 | OUTPUT: |
3991 | OUTPUT: |
2318 | RETVAL |
3992 | RETVAL |
2319 | |
3993 | |
2320 | # for async_pool speedup |
|
|
2321 | void |
3994 | void |
2322 | _pool_1 (SV *cb) |
3995 | suspend (Coro::State self) |
|
|
3996 | PROTOTYPE: $ |
2323 | CODE: |
3997 | CODE: |
2324 | { |
3998 | self->flags |= CF_SUSPENDED; |
2325 | struct coro *coro = SvSTATE (coro_current); |
|
|
2326 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2327 | AV *defav = GvAV (PL_defgv); |
|
|
2328 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2329 | AV *invoke_av; |
|
|
2330 | int i, len; |
|
|
2331 | |
3999 | |
2332 | if (!invoke) |
4000 | void |
|
|
4001 | resume (Coro::State self) |
|
|
4002 | PROTOTYPE: $ |
|
|
4003 | CODE: |
|
|
4004 | self->flags &= ~CF_SUSPENDED; |
|
|
4005 | |
|
|
4006 | void |
|
|
4007 | _pool_handler (...) |
|
|
4008 | CODE: |
|
|
4009 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
|
|
4010 | |
|
|
4011 | void |
|
|
4012 | async_pool (SV *cv, ...) |
|
|
4013 | PROTOTYPE: &@ |
|
|
4014 | PPCODE: |
|
|
4015 | { |
|
|
4016 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
4017 | AV *av = newAV (); |
|
|
4018 | SV *cb = ST (0); |
|
|
4019 | int i; |
|
|
4020 | |
|
|
4021 | av_extend (av, items - 2); |
|
|
4022 | for (i = 1; i < items; ++i) |
|
|
4023 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
4024 | |
|
|
4025 | if ((SV *)hv == &PL_sv_undef) |
2333 | { |
4026 | { |
2334 | SV *old = PL_diehook; |
4027 | SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1); |
2335 | PL_diehook = 0; |
4028 | hv = (HV *)SvREFCNT_inc_NN (SvRV (sv)); |
2336 | SvREFCNT_dec (old); |
4029 | SvREFCNT_dec (sv); |
2337 | croak ("\3async_pool terminate\2\n"); |
|
|
2338 | } |
4030 | } |
2339 | |
4031 | |
2340 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2341 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2342 | |
|
|
2343 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2344 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2345 | |
|
|
2346 | invoke_av = (AV *)SvRV (invoke); |
|
|
2347 | len = av_len (invoke_av); |
|
|
2348 | |
|
|
2349 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2350 | |
|
|
2351 | if (len > 0) |
|
|
2352 | { |
4032 | { |
2353 | av_fill (defav, len - 1); |
4033 | struct coro *coro = SvSTATE_hv (hv); |
2354 | for (i = 0; i < len; ++i) |
4034 | |
2355 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
4035 | assert (!coro->invoke_cb); |
|
|
4036 | assert (!coro->invoke_av); |
|
|
4037 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
4038 | coro->invoke_av = av; |
2356 | } |
4039 | } |
2357 | |
4040 | |
|
|
4041 | api_ready (aTHX_ (SV *)hv); |
|
|
4042 | |
|
|
4043 | if (GIMME_V != G_VOID) |
|
|
4044 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
4045 | else |
2358 | SvREFCNT_dec (invoke); |
4046 | SvREFCNT_dec (hv); |
2359 | } |
4047 | } |
2360 | |
4048 | |
2361 | void |
4049 | SV * |
2362 | _pool_2 (SV *cb) |
4050 | rouse_cb () |
|
|
4051 | PROTOTYPE: |
2363 | CODE: |
4052 | CODE: |
2364 | { |
4053 | RETVAL = coro_new_rouse_cb (aTHX); |
2365 | struct coro *coro = SvSTATE (coro_current); |
|
|
2366 | |
|
|
2367 | sv_setsv (cb, &PL_sv_undef); |
|
|
2368 | |
|
|
2369 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2370 | coro->saved_deffh = 0; |
|
|
2371 | |
|
|
2372 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2373 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2374 | { |
|
|
2375 | SV *old = PL_diehook; |
|
|
2376 | PL_diehook = 0; |
|
|
2377 | SvREFCNT_dec (old); |
|
|
2378 | croak ("\3async_pool terminate\2\n"); |
|
|
2379 | } |
|
|
2380 | |
|
|
2381 | av_clear (GvAV (PL_defgv)); |
|
|
2382 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2383 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2384 | |
|
|
2385 | coro->prio = 0; |
|
|
2386 | |
|
|
2387 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2388 | api_trace (coro_current, 0); |
|
|
2389 | |
|
|
2390 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2391 | } |
|
|
2392 | |
|
|
2393 | #if 0 |
|
|
2394 | |
|
|
2395 | void |
|
|
2396 | _generator_call (...) |
|
|
2397 | PROTOTYPE: @ |
|
|
2398 | PPCODE: |
|
|
2399 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2400 | xxxx |
|
|
2401 | abort (); |
|
|
2402 | |
|
|
2403 | SV * |
|
|
2404 | gensub (SV *sub, ...) |
|
|
2405 | PROTOTYPE: &;@ |
|
|
2406 | CODE: |
|
|
2407 | { |
|
|
2408 | struct coro *coro; |
|
|
2409 | MAGIC *mg; |
|
|
2410 | CV *xcv; |
|
|
2411 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2412 | int i; |
|
|
2413 | |
|
|
2414 | CvGV (ncv) = CvGV (cv); |
|
|
2415 | CvFILE (ncv) = CvFILE (cv); |
|
|
2416 | |
|
|
2417 | Newz (0, coro, 1, struct coro); |
|
|
2418 | coro->args = newAV (); |
|
|
2419 | coro->flags = CF_NEW; |
|
|
2420 | |
|
|
2421 | av_extend (coro->args, items - 1); |
|
|
2422 | for (i = 1; i < items; i++) |
|
|
2423 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2424 | |
|
|
2425 | CvISXSUB_on (ncv); |
|
|
2426 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2427 | |
|
|
2428 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2429 | |
|
|
2430 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2431 | CvANON_on (ncv); |
|
|
2432 | |
|
|
2433 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2434 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2435 | } |
|
|
2436 | OUTPUT: |
4054 | OUTPUT: |
2437 | RETVAL |
4055 | RETVAL |
2438 | |
4056 | |
2439 | #endif |
|
|
2440 | |
|
|
2441 | |
|
|
2442 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2443 | |
|
|
2444 | void |
4057 | void |
2445 | _get_state (SV *self) |
4058 | rouse_wait (...) |
|
|
4059 | PROTOTYPE: ;$ |
2446 | PPCODE: |
4060 | PPCODE: |
2447 | { |
4061 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
2448 | AV *defav = GvAV (PL_defgv); |
|
|
2449 | AV *av = newAV (); |
|
|
2450 | int i; |
|
|
2451 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2452 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2453 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2454 | SvPOK_only (data_sv); |
|
|
2455 | |
|
|
2456 | data->errorno = errno; |
|
|
2457 | data->laststype = PL_laststype; |
|
|
2458 | data->laststatval = PL_laststatval; |
|
|
2459 | data->statcache = PL_statcache; |
|
|
2460 | |
|
|
2461 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2462 | |
|
|
2463 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2464 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2465 | |
|
|
2466 | av_push (av, data_sv); |
|
|
2467 | |
|
|
2468 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2469 | |
|
|
2470 | api_ready (self); |
|
|
2471 | } |
|
|
2472 | |
4062 | |
2473 | void |
4063 | void |
2474 | _set_state (SV *state) |
4064 | on_enter (SV *block) |
|
|
4065 | ALIAS: |
|
|
4066 | on_leave = 1 |
2475 | PROTOTYPE: $ |
4067 | PROTOTYPE: & |
|
|
4068 | CODE: |
|
|
4069 | { |
|
|
4070 | struct coro *coro = SvSTATE_current; |
|
|
4071 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
|
|
4072 | |
|
|
4073 | block = s_get_cv_croak (block); |
|
|
4074 | |
|
|
4075 | if (!*avp) |
|
|
4076 | *avp = newAV (); |
|
|
4077 | |
|
|
4078 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
4079 | |
|
|
4080 | if (!ix) |
|
|
4081 | on_enterleave_call (aTHX_ block); |
|
|
4082 | |
|
|
4083 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4084 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
4085 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4086 | } |
|
|
4087 | |
|
|
4088 | |
|
|
4089 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
4090 | |
|
|
4091 | BOOT: |
|
|
4092 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
4093 | |
|
|
4094 | |
|
|
4095 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
4096 | |
|
|
4097 | SV * |
|
|
4098 | new (SV *klass, SV *count = 0) |
|
|
4099 | CODE: |
|
|
4100 | { |
|
|
4101 | int semcnt = 1; |
|
|
4102 | |
|
|
4103 | if (count) |
|
|
4104 | { |
|
|
4105 | SvGETMAGIC (count); |
|
|
4106 | |
|
|
4107 | if (SvOK (count)) |
|
|
4108 | semcnt = SvIV (count); |
|
|
4109 | } |
|
|
4110 | |
|
|
4111 | RETVAL = sv_bless ( |
|
|
4112 | coro_waitarray_new (aTHX_ semcnt), |
|
|
4113 | GvSTASH (CvGV (cv)) |
|
|
4114 | ); |
|
|
4115 | } |
|
|
4116 | OUTPUT: |
|
|
4117 | RETVAL |
|
|
4118 | |
|
|
4119 | # helper for Coro::Channel and others |
|
|
4120 | SV * |
|
|
4121 | _alloc (int count) |
|
|
4122 | CODE: |
|
|
4123 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
4124 | OUTPUT: |
|
|
4125 | RETVAL |
|
|
4126 | |
|
|
4127 | SV * |
|
|
4128 | count (SV *self) |
|
|
4129 | CODE: |
|
|
4130 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
4131 | OUTPUT: |
|
|
4132 | RETVAL |
|
|
4133 | |
|
|
4134 | void |
|
|
4135 | up (SV *self, int adjust = 1) |
|
|
4136 | ALIAS: |
|
|
4137 | adjust = 1 |
|
|
4138 | CODE: |
|
|
4139 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
4140 | |
|
|
4141 | void |
|
|
4142 | down (...) |
|
|
4143 | CODE: |
|
|
4144 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
4145 | |
|
|
4146 | void |
|
|
4147 | wait (...) |
|
|
4148 | CODE: |
|
|
4149 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
4150 | |
|
|
4151 | void |
|
|
4152 | try (SV *self) |
|
|
4153 | PPCODE: |
|
|
4154 | { |
|
|
4155 | AV *av = (AV *)SvRV (self); |
|
|
4156 | SV *count_sv = AvARRAY (av)[0]; |
|
|
4157 | IV count = SvIVX (count_sv); |
|
|
4158 | |
|
|
4159 | if (count > 0) |
|
|
4160 | { |
|
|
4161 | --count; |
|
|
4162 | SvIVX (count_sv) = count; |
|
|
4163 | XSRETURN_YES; |
|
|
4164 | } |
|
|
4165 | else |
|
|
4166 | XSRETURN_NO; |
|
|
4167 | } |
|
|
4168 | |
|
|
4169 | void |
|
|
4170 | waiters (SV *self) |
2476 | PPCODE: |
4171 | PPCODE: |
2477 | { |
4172 | { |
|
|
4173 | AV *av = (AV *)SvRV (self); |
|
|
4174 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
4175 | |
|
|
4176 | if (GIMME_V == G_SCALAR) |
|
|
4177 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
4178 | else |
|
|
4179 | { |
|
|
4180 | int i; |
|
|
4181 | EXTEND (SP, wcount); |
|
|
4182 | for (i = 1; i <= wcount; ++i) |
|
|
4183 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
4184 | } |
|
|
4185 | } |
|
|
4186 | |
|
|
4187 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
4188 | |
|
|
4189 | void |
|
|
4190 | _may_delete (SV *sem, int count, unsigned int extra_refs) |
|
|
4191 | PPCODE: |
|
|
4192 | { |
2478 | AV *av = (AV *)SvRV (state); |
4193 | AV *av = (AV *)SvRV (sem); |
2479 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2480 | int i; |
|
|
2481 | |
4194 | |
2482 | errno = data->errorno; |
4195 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
2483 | PL_laststype = data->laststype; |
4196 | && AvFILLp (av) == 0 /* no waiters, just count */ |
2484 | PL_laststatval = data->laststatval; |
4197 | && SvIV (AvARRAY (av)[0]) == count) |
2485 | PL_statcache = data->statcache; |
4198 | XSRETURN_YES; |
2486 | |
4199 | |
|
|
4200 | XSRETURN_NO; |
|
|
4201 | } |
|
|
4202 | |
|
|
4203 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
4204 | |
|
|
4205 | SV * |
|
|
4206 | new (SV *klass) |
|
|
4207 | CODE: |
|
|
4208 | RETVAL = sv_bless ( |
|
|
4209 | coro_waitarray_new (aTHX_ 0), |
|
|
4210 | GvSTASH (CvGV (cv)) |
|
|
4211 | ); |
|
|
4212 | OUTPUT: |
|
|
4213 | RETVAL |
|
|
4214 | |
|
|
4215 | void |
|
|
4216 | wait (...) |
|
|
4217 | CODE: |
|
|
4218 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
4219 | |
|
|
4220 | void |
|
|
4221 | broadcast (SV *self) |
|
|
4222 | CODE: |
|
|
4223 | { |
|
|
4224 | AV *av = (AV *)SvRV (self); |
|
|
4225 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
4226 | } |
|
|
4227 | |
|
|
4228 | void |
|
|
4229 | send (SV *self) |
|
|
4230 | CODE: |
|
|
4231 | { |
|
|
4232 | AV *av = (AV *)SvRV (self); |
|
|
4233 | |
2487 | EXTEND (SP, AvFILLp (av)); |
4234 | if (AvFILLp (av)) |
2488 | for (i = 0; i < AvFILLp (av); ++i) |
4235 | coro_signal_wake (aTHX_ av, 1); |
2489 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
4236 | else |
|
|
4237 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
2490 | } |
4238 | } |
|
|
4239 | |
|
|
4240 | IV |
|
|
4241 | awaited (SV *self) |
|
|
4242 | CODE: |
|
|
4243 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
4244 | OUTPUT: |
|
|
4245 | RETVAL |
2491 | |
4246 | |
2492 | |
4247 | |
2493 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
4248 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2494 | |
4249 | |
2495 | BOOT: |
4250 | BOOT: |
2496 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
4251 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2497 | |
4252 | |
2498 | SV * |
4253 | void |
2499 | _schedule (...) |
4254 | _schedule (...) |
2500 | PROTOTYPE: @ |
|
|
2501 | CODE: |
4255 | CODE: |
2502 | { |
4256 | { |
2503 | static int incede; |
4257 | static int incede; |
2504 | |
4258 | |
2505 | api_cede_notself (); |
4259 | api_cede_notself (aTHX); |
2506 | |
4260 | |
2507 | ++incede; |
4261 | ++incede; |
2508 | while (coro_nready >= incede && api_cede ()) |
4262 | while (coro_nready >= incede && api_cede (aTHX)) |
2509 | ; |
4263 | ; |
2510 | |
4264 | |
2511 | sv_setsv (sv_activity, &PL_sv_undef); |
4265 | sv_setsv (sv_activity, &PL_sv_undef); |
2512 | if (coro_nready >= incede) |
4266 | if (coro_nready >= incede) |
2513 | { |
4267 | { |
2514 | PUSHMARK (SP); |
4268 | PUSHMARK (SP); |
2515 | PUTBACK; |
4269 | PUTBACK; |
2516 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
4270 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2517 | SPAGAIN; |
|
|
2518 | } |
4271 | } |
2519 | |
4272 | |
2520 | --incede; |
4273 | --incede; |
2521 | } |
4274 | } |
2522 | |
4275 | |
2523 | |
4276 | |
2524 | MODULE = Coro::State PACKAGE = PerlIO::cede |
4277 | MODULE = Coro::State PACKAGE = Coro::AIO |
2525 | |
4278 | |
2526 | BOOT: |
4279 | void |
2527 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
4280 | _register (char *target, char *proto, SV *req) |
|
|
4281 | CODE: |
|
|
4282 | { |
|
|
4283 | SV *req_cv = s_get_cv_croak (req); |
|
|
4284 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
4285 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
4286 | sv_setpv ((SV *)slf_cv, proto); |
|
|
4287 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
4288 | } |
2528 | |
4289 | |
|
|
4290 | MODULE = Coro::State PACKAGE = Coro::Select |
|
|
4291 | |
|
|
4292 | void |
|
|
4293 | patch_pp_sselect () |
|
|
4294 | CODE: |
|
|
4295 | if (!coro_old_pp_sselect) |
|
|
4296 | { |
|
|
4297 | coro_select_select = (SV *)get_cv ("Coro::Select::select", 0); |
|
|
4298 | coro_old_pp_sselect = PL_ppaddr [OP_SSELECT]; |
|
|
4299 | PL_ppaddr [OP_SSELECT] = coro_pp_sselect; |
|
|
4300 | } |
|
|
4301 | |
|
|
4302 | void |
|
|
4303 | unpatch_pp_sselect () |
|
|
4304 | CODE: |
|
|
4305 | if (coro_old_pp_sselect) |
|
|
4306 | { |
|
|
4307 | PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; |
|
|
4308 | coro_old_pp_sselect = 0; |
|
|
4309 | } |
|
|
4310 | |
|
|
4311 | MODULE = Coro::State PACKAGE = Coro::Util |
|
|
4312 | |
|
|
4313 | void |
|
|
4314 | _exit (int code) |
|
|
4315 | CODE: |
|
|
4316 | _exit (code); |
|
|
4317 | |
|
|
4318 | NV |
|
|
4319 | time () |
|
|
4320 | CODE: |
|
|
4321 | RETVAL = nvtime (aTHX); |
|
|
4322 | OUTPUT: |
|
|
4323 | RETVAL |
|
|
4324 | |
|
|
4325 | NV |
|
|
4326 | gettimeofday () |
|
|
4327 | PPCODE: |
|
|
4328 | { |
|
|
4329 | UV tv [2]; |
|
|
4330 | u2time (aTHX_ tv); |
|
|
4331 | EXTEND (SP, 2); |
|
|
4332 | PUSHs (sv_2mortal (newSVuv (tv [0]))); |
|
|
4333 | PUSHs (sv_2mortal (newSVuv (tv [1]))); |
|
|
4334 | } |
|
|
4335 | |