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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" |
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7 | |
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8 | #define PERL_NO_GET_CONTEXT |
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9 | #define PERL_EXT |
2 | |
10 | |
3 | #include "EXTERN.h" |
11 | #include "EXTERN.h" |
4 | #include "perl.h" |
12 | #include "perl.h" |
5 | #include "XSUB.h" |
13 | #include "XSUB.h" |
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14 | #include "perliol.h" |
6 | |
15 | |
7 | #include "patchlevel.h" |
16 | #include "schmorp.h" |
8 | |
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> |
9 | #include <stdio.h> |
23 | #include <stdio.h> |
10 | #include <errno.h> |
24 | #include <errno.h> |
11 | #include <assert.h> |
25 | #include <assert.h> |
12 | |
26 | |
13 | #ifdef HAVE_MMAP |
27 | #ifndef SvREFCNT_dec_NN |
14 | # include <unistd.h> |
28 | #define SvREFCNT_dec_NN(sv) SvREFCNT_dec (sv) |
15 | # include <sys/mman.h> |
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16 | # ifndef MAP_ANONYMOUS |
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17 | # ifdef MAP_ANON |
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18 | # define MAP_ANONYMOUS MAP_ANON |
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19 | # else |
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20 | # undef HAVE_MMAP |
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21 | # endif |
29 | #endif |
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30 | |
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31 | #ifndef SvREFCNT_inc_NN |
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32 | #define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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33 | #endif |
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34 | |
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35 | #ifndef SVs_PADSTALE |
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36 | # define SVs_PADSTALE 0 |
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37 | #endif |
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38 | |
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39 | #ifdef PadARRAY |
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40 | # define NEWPADAPI 1 |
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41 | # define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *)) |
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42 | #else |
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43 | typedef AV PADNAMELIST; |
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44 | # if !PERL_VERSION_ATLEAST(5,8,0) |
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45 | typedef AV PADLIST; |
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46 | typedef AV PAD; |
22 | # endif |
47 | # endif |
23 | # include <limits.h> |
48 | # define PadlistARRAY(pl) ((PAD **)AvARRAY (pl)) |
24 | # ifndef PAGESIZE |
49 | # define PadlistMAX(pl) AvFILLp (pl) |
25 | # define PAGESIZE pagesize |
50 | # define PadlistNAMES(pl) (*PadlistARRAY (pl)) |
26 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
51 | # define PadARRAY AvARRAY |
27 | static long pagesize; |
52 | # define PadMAX AvFILLp |
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53 | # define newPADLIST(var) ((var) = newAV (), av_extend (var, 1)) |
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54 | #endif |
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55 | #ifndef PadnamelistREFCNT |
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56 | # define PadnamelistREFCNT(pnl) SvREFCNT (pnl) |
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57 | #endif |
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58 | #ifndef PadnamelistREFCNT_dec |
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59 | # define PadnamelistREFCNT_dec(pnl) SvREFCNT_dec (pnl) |
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60 | #endif |
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61 | |
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62 | /* 5.19.something has replaced SVt_BIND by SVt_INVLIST */ |
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63 | /* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */ |
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64 | #if PERL_VERSION_ATLEAST(5,19,0) |
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65 | # define SVt_BIND SVt_IV |
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66 | #endif |
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67 | |
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68 | #if defined(_WIN32) |
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69 | # undef HAS_GETTIMEOFDAY |
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70 | # undef setjmp |
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71 | # undef longjmp |
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72 | # undef _exit |
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73 | # define setjmp _setjmp /* deep magic */ |
28 | # else |
74 | #else |
29 | # define BOOT_PAGESIZE (void)0 |
75 | # include <inttypes.h> /* most portable stdint.h */ |
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76 | #endif |
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77 | |
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78 | /* the maximum number of idle cctx that will be pooled */ |
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79 | static int cctx_max_idle = 4; |
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80 | |
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81 | #if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0) |
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82 | # define HAS_SCOPESTACK_NAME 1 |
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83 | #endif |
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84 | |
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85 | /* prefer perl internal functions over our own? */ |
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86 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
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87 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
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88 | #endif |
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89 | |
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90 | /* The next macros try to return the current stack pointer, in an as |
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91 | * portable way as possible. */ |
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92 | #if __GNUC__ >= 4 |
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93 | # define dSTACKLEVEL int stacklevel_dummy |
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94 | # define STACKLEVEL __builtin_frame_address (0) |
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95 | #else |
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96 | # define dSTACKLEVEL volatile void *stacklevel |
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97 | # define STACKLEVEL ((void *)&stacklevel) |
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98 | #endif |
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99 | |
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100 | #define IN_DESTRUCT PL_dirty |
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101 | |
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102 | #include "CoroAPI.h" |
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103 | #define GCoroAPI (&coroapi) /* very sneaky */ |
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104 | |
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105 | #ifdef USE_ITHREADS |
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106 | # if CORO_PTHREAD |
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107 | static void *coro_thx; |
30 | # endif |
108 | # endif |
31 | #else |
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32 | # define PAGESIZE 0 |
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33 | # define BOOT_PAGESIZE (void)0 |
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34 | #endif |
109 | #endif |
35 | |
110 | |
36 | #if USE_VALGRIND |
111 | #ifdef __linux |
37 | # include <valgrind/valgrind.h> |
112 | # include <time.h> /* for timespec */ |
38 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
113 | # include <syscall.h> /* for SYS_* */ |
39 | #else |
114 | # ifdef SYS_clock_gettime |
40 | # define REGISTER_STACK(cctx,start,end) |
115 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
41 | #endif |
116 | # define CORO_CLOCK_MONOTONIC 1 |
42 | |
117 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
43 | /* the maximum number of idle cctx that will be pooled */ |
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44 | #define MAX_IDLE_CCTX 8 |
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45 | |
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46 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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47 | (PERL_REVISION > (a) \ |
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48 | || (PERL_REVISION == (a) \ |
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49 | && (PERL_VERSION > (b) \ |
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50 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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51 | |
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52 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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53 | # ifndef PL_ppaddr |
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54 | # define PL_ppaddr ppaddr |
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55 | # endif |
118 | # endif |
56 | # ifndef call_sv |
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57 | # define call_sv perl_call_sv |
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58 | # endif |
119 | #endif |
59 | # ifndef get_sv |
120 | |
60 | # define get_sv perl_get_sv |
121 | /* perl usually suppressed asserts. for debugging, we sometimes force it to be on */ |
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122 | #if 0 |
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123 | # undef NDEBUG |
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124 | # include <assert.h> |
61 | # endif |
125 | #endif |
62 | # ifndef get_cv |
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63 | # define get_cv perl_get_cv |
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64 | # endif |
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65 | # ifndef IS_PADGV |
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66 | # define IS_PADGV(v) 0 |
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67 | # endif |
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68 | # ifndef IS_PADCONST |
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69 | # define IS_PADCONST(v) 0 |
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70 | # endif |
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71 | #endif |
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72 | |
126 | |
73 | /* 5.8.7 */ |
127 | static double (*nvtime)(); /* so why doesn't it take void? */ |
74 | #ifndef SvRV_set |
128 | static void (*u2time)(pTHX_ UV ret[2]); |
75 | # define SvRV_set(s,v) SvRV(s) = (v) |
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76 | #endif |
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77 | |
129 | |
78 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
130 | /* we hijack an hopefully unused CV flag for our purposes */ |
79 | # undef STACKGUARD |
131 | #define CVf_SLF 0x4000 |
80 | #endif |
132 | static OP *pp_slf (pTHX); |
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133 | static void slf_destroy (pTHX_ struct coro *coro); |
81 | |
134 | |
82 | #ifndef STACKGUARD |
135 | static U32 cctx_gen; |
83 | # define STACKGUARD 0 |
136 | static size_t cctx_stacksize = CORO_STACKSIZE; |
84 | #endif |
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85 | |
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86 | /* prefer perl internal functions over our own? */ |
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87 | #ifndef PREFER_PERL_FUNCTIONS |
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88 | # define PREFER_PERL_FUNCTIONS 0 |
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89 | #endif |
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90 | |
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91 | /* The next macro should declare a variable stacklevel that contains and approximation |
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92 | * to the current C stack pointer. Its property is that it changes with each call |
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93 | * and should be unique. */ |
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94 | #define dSTACKLEVEL int stacklevel |
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95 | #define STACKLEVEL ((void *)&stacklevel) |
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96 | |
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97 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
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98 | |
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99 | #if __GNUC__ >= 3 |
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100 | # define attribute(x) __attribute__(x) |
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101 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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102 | #else |
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103 | # define attribute(x) |
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104 | # define BARRIER |
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105 | #endif |
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106 | |
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107 | #define NOINLINE attribute ((noinline)) |
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108 | |
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109 | #include "CoroAPI.h" |
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110 | |
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111 | #ifdef USE_ITHREADS |
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112 | static perl_mutex coro_mutex; |
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113 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
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114 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
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115 | #else |
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116 | # define LOCK (void)0 |
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117 | # define UNLOCK (void)0 |
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118 | #endif |
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119 | |
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120 | /* helper storage struct for Coro::AIO */ |
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121 | struct io_state |
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122 | { |
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123 | int errorno; |
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124 | I32 laststype; |
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125 | int laststatval; |
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126 | Stat_t statcache; |
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127 | }; |
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128 | |
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129 | static struct CoroAPI coroapi; |
137 | static struct CoroAPI coroapi; |
130 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
138 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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139 | static JMPENV *main_top_env; |
131 | static HV *coro_state_stash, *coro_stash; |
140 | static HV *coro_state_stash, *coro_stash; |
132 | static SV *coro_mortal; /* will be freed after next transfer */ |
141 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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142 | |
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143 | static AV *av_destroy; /* destruction queue */ |
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144 | static SV *sv_manager; /* the manager coro */ |
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145 | static SV *sv_idle; /* $Coro::idle */ |
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146 | |
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147 | static GV *irsgv; /* $/ */ |
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148 | static GV *stdoutgv; /* *STDOUT */ |
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149 | static SV *rv_diehook; |
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150 | static SV *rv_warnhook; |
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151 | |
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152 | /* async_pool helper stuff */ |
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153 | static SV *sv_pool_rss; |
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154 | static SV *sv_pool_size; |
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155 | static SV *sv_async_pool_idle; /* description string */ |
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156 | static AV *av_async_pool; /* idle pool */ |
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157 | static SV *sv_Coro; /* class string */ |
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158 | static CV *cv_pool_handler; |
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159 | |
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160 | /* Coro::AnyEvent */ |
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161 | static SV *sv_activity; |
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162 | |
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163 | /* enable processtime/realtime profiling */ |
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164 | static char enable_times; |
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165 | typedef U32 coro_ts[2]; |
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166 | static coro_ts time_real, time_cpu; |
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167 | static char times_valid; |
133 | |
168 | |
134 | static struct coro_cctx *cctx_first; |
169 | static struct coro_cctx *cctx_first; |
135 | static int cctx_count, cctx_idle; |
170 | static int cctx_count, cctx_idle; |
136 | |
171 | |
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172 | enum |
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173 | { |
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174 | CC_MAPPED = 0x01, |
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175 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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176 | CC_TRACE = 0x04, |
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177 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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178 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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179 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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180 | }; |
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181 | |
137 | /* this is a structure representing a c-level coroutine */ |
182 | /* this is a structure representing a c-level coroutine */ |
138 | typedef struct coro_cctx { |
183 | typedef struct coro_cctx |
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184 | { |
139 | struct coro_cctx *next; |
185 | struct coro_cctx *next; |
140 | |
186 | |
141 | /* the stack */ |
187 | /* the stack */ |
142 | void *sptr; |
188 | struct coro_stack stack; |
143 | ssize_t ssize; /* positive == mmap, otherwise malloc */ |
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144 | |
189 | |
145 | /* cpu state */ |
190 | /* cpu state */ |
146 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
191 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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192 | #ifndef NDEBUG |
147 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
193 | JMPENV *idle_te; /* same as idle_sp, but for top_env */ |
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194 | #endif |
148 | JMPENV *top_env; |
195 | JMPENV *top_env; |
149 | coro_context cctx; |
196 | coro_context cctx; |
150 | |
197 | |
151 | int inuse; |
198 | U32 gen; |
152 | |
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153 | #if USE_VALGRIND |
199 | #if CORO_USE_VALGRIND |
154 | int valgrind_id; |
200 | int valgrind_id; |
155 | #endif |
201 | #endif |
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202 | unsigned char flags; |
156 | } coro_cctx; |
203 | } coro_cctx; |
157 | |
204 | |
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205 | static coro_cctx *cctx_current; /* the currently running cctx */ |
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206 | |
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207 | /*****************************************************************************/ |
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208 | |
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209 | static MGVTBL coro_state_vtbl; |
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210 | |
158 | enum { |
211 | enum |
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212 | { |
159 | CF_RUNNING = 0x0001, /* coroutine is running */ |
213 | CF_RUNNING = 0x0001, /* coroutine is running */ |
160 | CF_READY = 0x0002, /* coroutine is ready */ |
214 | CF_READY = 0x0002, /* coroutine is ready */ |
161 | CF_NEW = 0x0004, /* has never been switched to */ |
215 | CF_NEW = 0x0004, /* has never been switched to */ |
162 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
216 | CF_ZOMBIE = 0x0008, /* coroutine data has been freed */ |
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217 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
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218 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
163 | }; |
219 | }; |
164 | |
220 | |
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221 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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222 | typedef struct |
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223 | { |
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224 | #define VARx(name,expr,type) type name; |
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225 | #include "state.h" |
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226 | } perl_slots; |
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227 | |
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228 | /* how many context stack entries do we need for perl_slots */ |
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229 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
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230 | |
165 | /* this is a structure representing a perl-level coroutine */ |
231 | /* this is a structure representing a perl-level coroutine */ |
166 | struct coro { |
232 | struct coro |
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233 | { |
167 | /* the c coroutine allocated to this perl coroutine, if any */ |
234 | /* the C coroutine allocated to this perl coroutine, if any */ |
168 | coro_cctx *cctx; |
235 | coro_cctx *cctx; |
169 | |
236 | |
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237 | /* ready queue */ |
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238 | struct coro *next_ready; |
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239 | |
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240 | /* state data */ |
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241 | struct CoroSLF slf_frame; /* saved slf frame */ |
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242 | AV *mainstack; |
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243 | perl_slots *slot; /* basically the saved sp */ |
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244 | |
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245 | CV *startcv; /* the CV to execute */ |
170 | /* data associated with this coroutine (initial args) */ |
246 | AV *args; /* data associated with this coroutine (initial args) */ |
171 | AV *args; |
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172 | int refcnt; |
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173 | int save; /* CORO_SAVE flags */ |
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174 | int flags; /* CF_ flags */ |
247 | int flags; /* CF_ flags */ |
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248 | HV *hv; /* the perl hash associated with this coro, if any */ |
175 | |
249 | |
176 | /* optionally saved, might be zero */ |
250 | /* statistics */ |
177 | AV *defav; /* @_ */ |
251 | int usecount; /* number of transfers to this coro */ |
178 | SV *defsv; /* $_ */ |
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179 | SV *errsv; /* $@ */ |
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180 | SV *irssv; /* $/ */ |
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181 | SV *irssv_sv; /* real $/ cache */ |
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182 | |
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183 | #define VAR(name,type) type name; |
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184 | # include "state.h" |
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185 | #undef VAR |
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186 | |
252 | |
187 | /* coro process data */ |
253 | /* coro process data */ |
188 | int prio; |
254 | int prio; |
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255 | SV *except; /* exception to be thrown */ |
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256 | SV *rouse_cb; /* last rouse callback */ |
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257 | AV *on_destroy; /* callbacks or coros to notify on destroy */ |
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258 | AV *status; /* the exit status list */ |
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259 | |
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260 | /* async_pool */ |
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261 | SV *saved_deffh; |
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262 | SV *invoke_cb; |
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263 | AV *invoke_av; |
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264 | |
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265 | /* on_enter/on_leave */ |
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266 | AV *on_enter; AV *on_enter_xs; |
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267 | AV *on_leave; AV *on_leave_xs; |
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268 | |
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269 | /* swap_sv */ |
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270 | AV *swap_sv; |
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271 | |
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272 | /* times */ |
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273 | coro_ts t_cpu, t_real; |
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274 | |
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275 | /* linked list */ |
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276 | struct coro *next, *prev; |
189 | }; |
277 | }; |
190 | |
278 | |
191 | typedef struct coro *Coro__State; |
279 | typedef struct coro *Coro__State; |
192 | typedef struct coro *Coro__State_or_hashref; |
280 | typedef struct coro *Coro__State_or_hashref; |
193 | |
281 | |
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282 | /* the following variables are effectively part of the perl context */ |
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283 | /* and get copied between struct coro and these variables */ |
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284 | /* the main reason we don't support windows process emulation */ |
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285 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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286 | |
194 | /** Coro ********************************************************************/ |
287 | /** Coro ********************************************************************/ |
195 | |
288 | |
196 | #define PRIO_MAX 3 |
289 | #define CORO_PRIO_MAX 3 |
197 | #define PRIO_HIGH 1 |
290 | #define CORO_PRIO_HIGH 1 |
198 | #define PRIO_NORMAL 0 |
291 | #define CORO_PRIO_NORMAL 0 |
199 | #define PRIO_LOW -1 |
292 | #define CORO_PRIO_LOW -1 |
200 | #define PRIO_IDLE -3 |
293 | #define CORO_PRIO_IDLE -3 |
201 | #define PRIO_MIN -4 |
294 | #define CORO_PRIO_MIN -4 |
202 | |
295 | |
203 | /* for Coro.pm */ |
296 | /* for Coro.pm */ |
204 | static SV *coro_current; |
297 | static SV *coro_current; |
205 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
298 | static SV *coro_readyhook; |
206 | static int coro_nready; |
299 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
|
|
300 | static CV *cv_coro_run; |
|
|
301 | static struct coro *coro_first; |
|
|
302 | #define coro_nready coroapi.nready |
|
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303 | |
|
|
304 | /** JIT *********************************************************************/ |
|
|
305 | |
|
|
306 | #if CORO_JIT |
|
|
307 | /* APPLE doesn't have mmap though */ |
|
|
308 | #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__) |
|
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309 | #ifndef CORO_JIT_TYPE |
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|
310 | #if ECB_AMD64 && CORO_JIT_UNIXY |
|
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311 | #define CORO_JIT_TYPE "amd64-unix" |
|
|
312 | #elif __i386 && CORO_JIT_UNIXY |
|
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313 | #define CORO_JIT_TYPE "x86-unix" |
|
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314 | #endif |
|
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315 | #endif |
|
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316 | #endif |
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317 | |
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318 | #if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0 |
|
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319 | #undef CORO_JIT |
|
|
320 | #endif |
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321 | |
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|
322 | #if CORO_JIT |
|
|
323 | typedef void (*load_save_perl_slots_type)(perl_slots *); |
|
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324 | static load_save_perl_slots_type load_perl_slots, save_perl_slots; |
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325 | #endif |
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326 | |
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327 | /** Coro::Select ************************************************************/ |
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328 | |
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329 | static OP *(*coro_old_pp_sselect) (pTHX); |
|
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330 | static SV *coro_select_select; |
|
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331 | |
|
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332 | /* horrible hack, but if it works... */ |
|
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333 | static OP * |
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334 | coro_pp_sselect (pTHX) |
|
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335 | { |
|
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336 | dSP; |
|
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337 | PUSHMARK (SP - 4); /* fake argument list */ |
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338 | XPUSHs (coro_select_select); |
|
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339 | PUTBACK; |
|
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340 | |
|
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341 | /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ |
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342 | PL_op->op_flags |= OPf_STACKED; |
|
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343 | PL_op->op_private = 0; |
|
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344 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
|
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345 | } |
|
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346 | |
|
|
347 | /** time stuff **************************************************************/ |
|
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348 | |
|
|
349 | #ifdef HAS_GETTIMEOFDAY |
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350 | |
|
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351 | ecb_inline void |
|
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352 | coro_u2time (pTHX_ UV ret[2]) |
|
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353 | { |
|
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354 | struct timeval tv; |
|
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355 | gettimeofday (&tv, 0); |
|
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356 | |
|
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357 | ret [0] = tv.tv_sec; |
|
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358 | ret [1] = tv.tv_usec; |
|
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359 | } |
|
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360 | |
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|
361 | ecb_inline double |
|
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362 | coro_nvtime (void) |
|
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363 | { |
|
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364 | struct timeval tv; |
|
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365 | gettimeofday (&tv, 0); |
|
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366 | |
|
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367 | return tv.tv_sec + tv.tv_usec * 1e-6; |
|
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368 | } |
|
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369 | |
|
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370 | ecb_inline void |
|
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371 | time_init (pTHX) |
|
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372 | { |
|
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373 | nvtime = coro_nvtime; |
|
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374 | u2time = coro_u2time; |
|
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375 | } |
|
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376 | |
|
|
377 | #else |
|
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378 | |
|
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379 | ecb_inline void |
|
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380 | time_init (pTHX) |
|
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381 | { |
|
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382 | SV **svp; |
|
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383 | |
|
|
384 | require_pv ("Time/HiRes.pm"); |
|
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385 | |
|
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386 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
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387 | |
|
|
388 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
|
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389 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
|
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390 | |
|
|
391 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
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392 | |
|
|
393 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
|
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394 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
|
|
395 | } |
|
|
396 | |
|
|
397 | #endif |
207 | |
398 | |
208 | /** lowlevel stuff **********************************************************/ |
399 | /** lowlevel stuff **********************************************************/ |
209 | |
400 | |
210 | static AV * |
401 | static SV * ecb_noinline |
|
|
402 | coro_get_sv (pTHX_ const char *name, int create) |
|
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403 | { |
|
|
404 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
405 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
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406 | get_sv (name, create); |
|
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407 | #endif |
|
|
408 | return get_sv (name, create); |
|
|
409 | } |
|
|
410 | |
|
|
411 | static AV * ecb_noinline |
|
|
412 | coro_get_av (pTHX_ const char *name, int create) |
|
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413 | { |
|
|
414 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
415 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
416 | get_av (name, create); |
|
|
417 | #endif |
|
|
418 | return get_av (name, create); |
|
|
419 | } |
|
|
420 | |
|
|
421 | static HV * ecb_noinline |
|
|
422 | coro_get_hv (pTHX_ const char *name, int create) |
|
|
423 | { |
|
|
424 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
425 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
426 | get_hv (name, create); |
|
|
427 | #endif |
|
|
428 | return get_hv (name, create); |
|
|
429 | } |
|
|
430 | |
|
|
431 | ecb_inline void |
|
|
432 | coro_times_update (void) |
|
|
433 | { |
|
|
434 | #ifdef coro_clock_gettime |
|
|
435 | struct timespec ts; |
|
|
436 | |
|
|
437 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
438 | coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts); |
|
|
439 | time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec; |
|
|
440 | |
|
|
441 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
442 | coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); |
|
|
443 | time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; |
|
|
444 | #else |
|
|
445 | dTHX; |
|
|
446 | UV tv[2]; |
|
|
447 | |
|
|
448 | u2time (aTHX_ tv); |
|
|
449 | time_real [0] = tv [0]; |
|
|
450 | time_real [1] = tv [1] * 1000; |
|
|
451 | #endif |
|
|
452 | } |
|
|
453 | |
|
|
454 | ecb_inline void |
|
|
455 | coro_times_add (struct coro *c) |
|
|
456 | { |
|
|
457 | c->t_real [1] += time_real [1]; |
|
|
458 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
|
|
459 | c->t_real [0] += time_real [0]; |
|
|
460 | |
|
|
461 | c->t_cpu [1] += time_cpu [1]; |
|
|
462 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
|
|
463 | c->t_cpu [0] += time_cpu [0]; |
|
|
464 | } |
|
|
465 | |
|
|
466 | ecb_inline void |
|
|
467 | coro_times_sub (struct coro *c) |
|
|
468 | { |
|
|
469 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
|
|
470 | c->t_real [1] -= time_real [1]; |
|
|
471 | c->t_real [0] -= time_real [0]; |
|
|
472 | |
|
|
473 | if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; } |
|
|
474 | c->t_cpu [1] -= time_cpu [1]; |
|
|
475 | c->t_cpu [0] -= time_cpu [0]; |
|
|
476 | } |
|
|
477 | |
|
|
478 | /*****************************************************************************/ |
|
|
479 | /* magic glue */ |
|
|
480 | |
|
|
481 | #define CORO_MAGIC_type_cv 26 |
|
|
482 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
483 | |
|
|
484 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
485 | (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
486 | ? SvMAGIC (sv) \ |
|
|
487 | : mg_find (sv, type)) |
|
|
488 | |
|
|
489 | #define CORO_MAGIC(sv, type) \ |
|
|
490 | (ecb_expect_true (SvMAGIC (sv)) \ |
|
|
491 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
492 | : 0) |
|
|
493 | |
|
|
494 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
495 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
496 | |
|
|
497 | ecb_inline MAGIC * |
|
|
498 | SvSTATEhv_p (pTHX_ SV *coro) |
|
|
499 | { |
|
|
500 | MAGIC *mg; |
|
|
501 | |
|
|
502 | if (ecb_expect_true ( |
|
|
503 | SvTYPE (coro) == SVt_PVHV |
|
|
504 | && (mg = CORO_MAGIC_state (coro)) |
|
|
505 | && mg->mg_virtual == &coro_state_vtbl |
|
|
506 | )) |
|
|
507 | return mg; |
|
|
508 | |
|
|
509 | return 0; |
|
|
510 | } |
|
|
511 | |
|
|
512 | ecb_inline struct coro * |
|
|
513 | SvSTATE_ (pTHX_ SV *coro_sv) |
|
|
514 | { |
|
|
515 | MAGIC *mg; |
|
|
516 | |
|
|
517 | if (SvROK (coro_sv)) |
|
|
518 | coro_sv = SvRV (coro_sv); |
|
|
519 | |
|
|
520 | mg = SvSTATEhv_p (aTHX_ coro_sv); |
|
|
521 | if (!mg) |
|
|
522 | croak ("Coro::State object required"); |
|
|
523 | |
|
|
524 | return (struct coro *)mg->mg_ptr; |
|
|
525 | } |
|
|
526 | |
|
|
527 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
528 | |
|
|
529 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
530 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
531 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
532 | |
|
|
533 | /*****************************************************************************/ |
|
|
534 | /* padlist management and caching */ |
|
|
535 | |
|
|
536 | ecb_inline PADLIST * |
211 | coro_clone_padlist (CV *cv) |
537 | coro_derive_padlist (pTHX_ CV *cv) |
212 | { |
538 | { |
213 | AV *padlist = CvPADLIST (cv); |
539 | PADLIST *padlist = CvPADLIST (cv); |
214 | AV *newpadlist, *newpad; |
540 | PADLIST *newpadlist; |
|
|
541 | PADNAMELIST *padnames; |
|
|
542 | PAD *newpad; |
|
|
543 | PADOFFSET off = PadlistMAX (padlist) + 1; |
215 | |
544 | |
216 | newpadlist = newAV (); |
545 | #if NEWPADAPI |
|
|
546 | |
|
|
547 | /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */ |
|
|
548 | /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */ |
|
|
549 | while (!PadlistARRAY (padlist)[off - 1]) |
|
|
550 | --off; |
|
|
551 | |
|
|
552 | Perl_pad_push (aTHX_ padlist, off); |
|
|
553 | |
|
|
554 | newpad = PadlistARRAY (padlist)[off]; |
|
|
555 | PadlistARRAY (padlist)[off] = 0; |
|
|
556 | |
|
|
557 | #else |
|
|
558 | |
|
|
559 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
560 | Perl_pad_push (aTHX_ padlist, off); |
|
|
561 | #else |
|
|
562 | Perl_pad_push (aTHX_ padlist, off, 1); |
|
|
563 | #endif |
|
|
564 | |
|
|
565 | newpad = PadlistARRAY (padlist)[off]; |
|
|
566 | PadlistMAX (padlist) = off - 1; |
|
|
567 | |
|
|
568 | #endif |
|
|
569 | |
|
|
570 | newPADLIST (newpadlist); |
|
|
571 | #if !PERL_VERSION_ATLEAST(5,15,3) |
|
|
572 | /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */ |
217 | AvREAL_off (newpadlist); |
573 | AvREAL_off (newpadlist); |
218 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
|
219 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
|
|
220 | #else |
|
|
221 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
|
|
222 | #endif |
574 | #endif |
223 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
|
|
224 | --AvFILLp (padlist); |
|
|
225 | |
575 | |
226 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
576 | /* Already extended to 2 elements by newPADLIST. */ |
227 | av_store (newpadlist, 1, (SV *)newpad); |
577 | PadlistMAX (newpadlist) = 1; |
|
|
578 | |
|
|
579 | padnames = PadlistNAMES (padlist); |
|
|
580 | ++PadnamelistREFCNT (padnames); |
|
|
581 | PadlistNAMES (newpadlist) = padnames; |
|
|
582 | |
|
|
583 | PadlistARRAY (newpadlist)[1] = newpad; |
228 | |
584 | |
229 | return newpadlist; |
585 | return newpadlist; |
230 | } |
586 | } |
231 | |
587 | |
232 | static void |
588 | ecb_inline void |
233 | free_padlist (AV *padlist) |
589 | free_padlist (pTHX_ PADLIST *padlist) |
234 | { |
590 | { |
235 | /* may be during global destruction */ |
591 | /* may be during global destruction */ |
236 | if (SvREFCNT (padlist)) |
592 | if (!IN_DESTRUCT) |
237 | { |
593 | { |
238 | I32 i = AvFILLp (padlist); |
594 | I32 i = PadlistMAX (padlist); |
239 | while (i >= 0) |
595 | |
|
|
596 | while (i > 0) /* special-case index 0 */ |
240 | { |
597 | { |
241 | SV **svp = av_fetch (padlist, i--, FALSE); |
598 | /* we try to be extra-careful here */ |
|
|
599 | PAD *pad = PadlistARRAY (padlist)[i--]; |
|
|
600 | |
242 | if (svp) |
601 | if (pad) |
243 | { |
602 | { |
244 | SV *sv; |
603 | I32 j = PadMAX (pad); |
245 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
604 | |
|
|
605 | while (j >= 0) |
246 | SvREFCNT_dec (sv); |
606 | SvREFCNT_dec (PadARRAY (pad)[j--]); |
247 | |
607 | |
|
|
608 | PadMAX (pad) = -1; |
248 | SvREFCNT_dec (*svp); |
609 | SvREFCNT_dec (pad); |
249 | } |
610 | } |
250 | } |
611 | } |
251 | |
612 | |
|
|
613 | PadnamelistREFCNT_dec (PadlistNAMES (padlist)); |
|
|
614 | |
|
|
615 | #if NEWPADAPI |
|
|
616 | Safefree (PadlistARRAY (padlist)); |
|
|
617 | Safefree (padlist); |
|
|
618 | #else |
|
|
619 | AvFILLp (padlist) = -1; |
|
|
620 | AvREAL_off (padlist); |
252 | SvREFCNT_dec ((SV*)padlist); |
621 | SvREFCNT_dec ((SV*)padlist); |
|
|
622 | #endif |
253 | } |
623 | } |
254 | } |
624 | } |
255 | |
625 | |
256 | static int |
626 | static int |
257 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
627 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
258 | { |
628 | { |
259 | AV *padlist; |
629 | PADLIST *padlist; |
260 | AV *av = (AV *)mg->mg_obj; |
630 | PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t)); |
|
|
631 | size_t len = *(size_t *)mg->mg_ptr; |
261 | |
632 | |
262 | /* casting is fun. */ |
633 | /* perl manages to free our internal AV and _then_ call us */ |
263 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
634 | if (IN_DESTRUCT) |
|
|
635 | return 0; |
|
|
636 | |
|
|
637 | while (len--) |
264 | free_padlist (padlist); |
638 | free_padlist (aTHX_ padlists[len]); |
265 | |
|
|
266 | SvREFCNT_dec (av); |
|
|
267 | |
639 | |
268 | return 0; |
640 | return 0; |
269 | } |
641 | } |
270 | |
642 | |
271 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
643 | static MGVTBL coro_cv_vtbl = { |
272 | |
644 | 0, 0, 0, 0, |
273 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
645 | coro_cv_free |
274 | |
646 | }; |
275 | #define CORO_MAGIC(cv) \ |
|
|
276 | SvMAGIC (cv) \ |
|
|
277 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
|
|
278 | ? SvMAGIC (cv) \ |
|
|
279 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
|
|
280 | : 0 |
|
|
281 | |
647 | |
282 | /* the next two functions merely cache the padlists */ |
648 | /* the next two functions merely cache the padlists */ |
283 | static void |
649 | ecb_inline void |
284 | get_padlist (CV *cv) |
650 | get_padlist (pTHX_ CV *cv) |
285 | { |
651 | { |
286 | MAGIC *mg = CORO_MAGIC (cv); |
652 | MAGIC *mg = CORO_MAGIC_cv (cv); |
287 | AV *av; |
653 | size_t *lenp; |
288 | |
654 | |
289 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
655 | if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr))) |
290 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
656 | CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp]; |
291 | else |
657 | else |
292 | { |
658 | { |
293 | #if PREFER_PERL_FUNCTIONS |
659 | #if CORO_PREFER_PERL_FUNCTIONS |
294 | /* this is probably cleaner, but also slower? */ |
660 | /* this is probably cleaner? but also slower! */ |
|
|
661 | /* in practise, it seems to be less stable */ |
295 | CV *cp = Perl_cv_clone (cv); |
662 | CV *cp = Perl_cv_clone (aTHX_ cv); |
296 | CvPADLIST (cv) = CvPADLIST (cp); |
663 | CvPADLIST (cv) = CvPADLIST (cp); |
297 | CvPADLIST (cp) = 0; |
664 | CvPADLIST (cp) = 0; |
298 | SvREFCNT_dec (cp); |
665 | SvREFCNT_dec (cp); |
299 | #else |
666 | #else |
300 | CvPADLIST (cv) = coro_clone_padlist (cv); |
667 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
301 | #endif |
668 | #endif |
302 | } |
669 | } |
303 | } |
670 | } |
304 | |
671 | |
305 | static void |
672 | ecb_inline void |
306 | put_padlist (CV *cv) |
673 | put_padlist (pTHX_ CV *cv) |
307 | { |
674 | { |
308 | MAGIC *mg = CORO_MAGIC (cv); |
675 | MAGIC *mg = CORO_MAGIC_cv (cv); |
309 | AV *av; |
|
|
310 | |
676 | |
311 | if (!mg) |
677 | if (ecb_expect_false (!mg)) |
312 | { |
|
|
313 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
314 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
315 | mg->mg_virtual = &vtbl_coro; |
|
|
316 | mg->mg_obj = (SV *)newAV (); |
|
|
317 | } |
678 | { |
|
|
679 | mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
|
|
680 | Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char); |
|
|
681 | mg->mg_len = 1; /* so mg_free frees mg_ptr */ |
|
|
682 | } |
|
|
683 | else |
|
|
684 | Renew (mg->mg_ptr, |
|
|
685 | sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *), |
|
|
686 | char); |
318 | |
687 | |
319 | av = (AV *)mg->mg_obj; |
688 | ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv); |
320 | |
|
|
321 | if (AvFILLp (av) >= AvMAX (av)) |
|
|
322 | av_extend (av, AvMAX (av) + 1); |
|
|
323 | |
|
|
324 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
|
|
325 | } |
689 | } |
326 | |
690 | |
327 | /** load & save, init *******************************************************/ |
691 | /** load & save, init *******************************************************/ |
328 | |
692 | |
329 | #define SB do { |
693 | ecb_inline void |
330 | #define SE } while (0) |
694 | swap_sv (SV *a, SV *b) |
|
|
695 | { |
|
|
696 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
697 | SV tmp; |
331 | |
698 | |
332 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
699 | /* swap sv_any */ |
|
|
700 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
333 | |
701 | |
|
|
702 | /* swap sv_flags */ |
|
|
703 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
704 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
705 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
706 | |
|
|
707 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
708 | /* perl 5.10 and later complicates this _quite_ a bit, but it also |
|
|
709 | * is much faster, so no quarrels here. alternatively, we could |
|
|
710 | * sv_upgrade to avoid this. |
|
|
711 | */ |
|
|
712 | { |
|
|
713 | /* swap sv_u */ |
|
|
714 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
715 | |
|
|
716 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
717 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
718 | */ |
|
|
719 | U32 svany_in_head_set = (1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV); |
|
|
720 | #if NVSIZE <= IVSIZE && PERL_VERSION_ATLEAST(5,22,0) |
|
|
721 | svany_in_head_set |= 1 << SVt_NV; |
|
|
722 | #endif |
|
|
723 | |
|
|
724 | #define svany_in_head(type) (svany_in_head_set & (1 << (type))) |
|
|
725 | |
|
|
726 | if (svany_in_head (SvTYPE (a))) |
|
|
727 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
728 | |
|
|
729 | if (svany_in_head (SvTYPE (b))) |
|
|
730 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
731 | } |
|
|
732 | #endif |
|
|
733 | } |
|
|
734 | |
|
|
735 | /* swap sv heads, at least logically */ |
334 | static void |
736 | static void |
|
|
737 | swap_svs_enter (pTHX_ Coro__State c) |
|
|
738 | { |
|
|
739 | int i; |
|
|
740 | |
|
|
741 | for (i = 0; i <= AvFILLp (c->swap_sv); i += 2) |
|
|
742 | swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]); |
|
|
743 | } |
|
|
744 | |
|
|
745 | static void |
|
|
746 | swap_svs_leave (pTHX_ Coro__State c) |
|
|
747 | { |
|
|
748 | int i; |
|
|
749 | |
|
|
750 | for (i = AvFILLp (c->swap_sv) - 1; i >= 0; i -= 2) |
|
|
751 | swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]); |
|
|
752 | } |
|
|
753 | |
|
|
754 | #define SWAP_SVS_ENTER(coro) \ |
|
|
755 | if (ecb_expect_false ((coro)->swap_sv)) \ |
|
|
756 | swap_svs_enter (aTHX_ (coro)) |
|
|
757 | |
|
|
758 | #define SWAP_SVS_LEAVE(coro) \ |
|
|
759 | if (ecb_expect_false ((coro)->swap_sv)) \ |
|
|
760 | swap_svs_leave (aTHX_ (coro)) |
|
|
761 | |
|
|
762 | static void |
|
|
763 | on_enterleave_call (pTHX_ SV *cb); |
|
|
764 | |
|
|
765 | static void |
335 | load_perl (Coro__State c) |
766 | load_perl (pTHX_ Coro__State c) |
336 | { |
767 | { |
337 | #define VAR(name,type) PL_ ## name = c->name; |
768 | perl_slots *slot = c->slot; |
|
|
769 | c->slot = 0; |
|
|
770 | |
|
|
771 | PL_mainstack = c->mainstack; |
|
|
772 | |
|
|
773 | #if CORO_JIT |
|
|
774 | load_perl_slots (slot); |
|
|
775 | #else |
|
|
776 | #define VARx(name,expr,type) expr = slot->name; |
338 | # include "state.h" |
777 | #include "state.h" |
339 | #undef VAR |
778 | #endif |
340 | |
|
|
341 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
|
|
342 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
|
|
343 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
344 | if (c->irssv) |
|
|
345 | { |
|
|
346 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
|
|
347 | SvREFCNT_dec (c->irssv); |
|
|
348 | else |
|
|
349 | { |
|
|
350 | REPLACE_SV (PL_rs, c->irssv); |
|
|
351 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
|
|
352 | sv_setsv (c->irssv_sv, PL_rs); |
|
|
353 | } |
|
|
354 | } |
|
|
355 | |
779 | |
356 | { |
780 | { |
357 | dSP; |
781 | dSP; |
|
|
782 | |
358 | CV *cv; |
783 | CV *cv; |
359 | |
784 | |
360 | /* now do the ugly restore mess */ |
785 | /* now do the ugly restore mess */ |
361 | while ((cv = (CV *)POPs)) |
786 | while (ecb_expect_true (cv = (CV *)POPs)) |
362 | { |
787 | { |
363 | put_padlist (cv); /* mark this padlist as available */ |
788 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
364 | CvDEPTH (cv) = PTR2IV (POPs); |
789 | CvDEPTH (cv) = PTR2IV (POPs); |
365 | CvPADLIST (cv) = (AV *)POPs; |
790 | CvPADLIST (cv) = (PADLIST *)POPs; |
366 | } |
791 | } |
367 | |
792 | |
368 | PUTBACK; |
793 | PUTBACK; |
369 | } |
794 | } |
370 | } |
|
|
371 | |
795 | |
|
|
796 | slf_frame = c->slf_frame; |
|
|
797 | CORO_THROW = c->except; |
|
|
798 | |
|
|
799 | if (ecb_expect_false (enable_times)) |
|
|
800 | { |
|
|
801 | if (ecb_expect_false (!times_valid)) |
|
|
802 | coro_times_update (); |
|
|
803 | |
|
|
804 | coro_times_sub (c); |
|
|
805 | } |
|
|
806 | |
|
|
807 | if (ecb_expect_false (c->on_enter)) |
|
|
808 | { |
|
|
809 | int i; |
|
|
810 | |
|
|
811 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
812 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
813 | } |
|
|
814 | |
|
|
815 | if (ecb_expect_false (c->on_enter_xs)) |
|
|
816 | { |
|
|
817 | int i; |
|
|
818 | |
|
|
819 | for (i = 0; i <= AvFILLp (c->on_enter_xs); i += 2) |
|
|
820 | ((coro_enterleave_hook)AvARRAY (c->on_enter_xs)[i]) (aTHX_ AvARRAY (c->on_enter_xs)[i + 1]); |
|
|
821 | } |
|
|
822 | |
|
|
823 | SWAP_SVS_ENTER (c); |
|
|
824 | } |
|
|
825 | |
372 | static void |
826 | static void |
373 | save_perl (Coro__State c) |
827 | save_perl (pTHX_ Coro__State c) |
374 | { |
828 | { |
|
|
829 | SWAP_SVS_LEAVE (c); |
|
|
830 | |
|
|
831 | if (ecb_expect_false (c->on_leave_xs)) |
|
|
832 | { |
|
|
833 | int i; |
|
|
834 | |
|
|
835 | for (i = AvFILLp (c->on_leave_xs) - 1; i >= 0; i -= 2) |
|
|
836 | ((coro_enterleave_hook)AvARRAY (c->on_leave_xs)[i]) (aTHX_ AvARRAY (c->on_leave_xs)[i + 1]); |
|
|
837 | } |
|
|
838 | |
|
|
839 | if (ecb_expect_false (c->on_leave)) |
|
|
840 | { |
|
|
841 | int i; |
|
|
842 | |
|
|
843 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
844 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
845 | } |
|
|
846 | |
|
|
847 | times_valid = 0; |
|
|
848 | |
|
|
849 | if (ecb_expect_false (enable_times)) |
|
|
850 | { |
|
|
851 | coro_times_update (); times_valid = 1; |
|
|
852 | coro_times_add (c); |
|
|
853 | } |
|
|
854 | |
|
|
855 | c->except = CORO_THROW; |
|
|
856 | c->slf_frame = slf_frame; |
|
|
857 | |
375 | { |
858 | { |
376 | dSP; |
859 | dSP; |
377 | I32 cxix = cxstack_ix; |
860 | I32 cxix = cxstack_ix; |
378 | PERL_CONTEXT *ccstk = cxstack; |
861 | PERL_CONTEXT *ccstk = cxstack; |
379 | PERL_SI *top_si = PL_curstackinfo; |
862 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
381 | /* |
864 | /* |
382 | * the worst thing you can imagine happens first - we have to save |
865 | * the worst thing you can imagine happens first - we have to save |
383 | * (and reinitialize) all cv's in the whole callchain :( |
866 | * (and reinitialize) all cv's in the whole callchain :( |
384 | */ |
867 | */ |
385 | |
868 | |
386 | EXTEND (SP, 3 + 1); |
|
|
387 | PUSHs (Nullsv); |
869 | XPUSHs (Nullsv); |
388 | /* this loop was inspired by pp_caller */ |
870 | /* this loop was inspired by pp_caller */ |
389 | for (;;) |
871 | for (;;) |
390 | { |
872 | { |
391 | while (cxix >= 0) |
873 | while (ecb_expect_true (cxix >= 0)) |
392 | { |
874 | { |
393 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
875 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
394 | |
876 | |
395 | if (CxTYPE (cx) == CXt_SUB) |
877 | if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT)) |
396 | { |
878 | { |
397 | CV *cv = cx->blk_sub.cv; |
879 | CV *cv = cx->blk_sub.cv; |
398 | |
880 | |
399 | if (CvDEPTH (cv)) |
881 | if (ecb_expect_true (CvDEPTH (cv))) |
400 | { |
882 | { |
401 | EXTEND (SP, 3); |
883 | EXTEND (SP, 3); |
402 | PUSHs ((SV *)CvPADLIST (cv)); |
884 | PUSHs ((SV *)CvPADLIST (cv)); |
403 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
885 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
404 | PUSHs ((SV *)cv); |
886 | PUSHs ((SV *)cv); |
405 | |
887 | |
406 | CvDEPTH (cv) = 0; |
888 | CvDEPTH (cv) = 0; |
407 | get_padlist (cv); |
889 | get_padlist (aTHX_ cv); |
408 | } |
890 | } |
409 | } |
891 | } |
410 | } |
892 | } |
411 | |
893 | |
412 | if (top_si->si_type == PERLSI_MAIN) |
894 | if (ecb_expect_true (top_si->si_type == PERLSI_MAIN)) |
413 | break; |
895 | break; |
414 | |
896 | |
415 | top_si = top_si->si_prev; |
897 | top_si = top_si->si_prev; |
416 | ccstk = top_si->si_cxstack; |
898 | ccstk = top_si->si_cxstack; |
417 | cxix = top_si->si_cxix; |
899 | cxix = top_si->si_cxix; |
418 | } |
900 | } |
419 | |
901 | |
420 | PUTBACK; |
902 | PUTBACK; |
421 | } |
903 | } |
422 | |
904 | |
423 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
905 | /* allocate some space on the context stack for our purposes */ |
424 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
906 | if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max)) |
425 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
907 | { |
426 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
908 | unsigned int i; |
427 | |
909 | |
428 | #define VAR(name,type)c->name = PL_ ## name; |
910 | for (i = 0; i < SLOT_COUNT; ++i) |
|
|
911 | CXINC; |
|
|
912 | |
|
|
913 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
914 | } |
|
|
915 | |
|
|
916 | c->mainstack = PL_mainstack; |
|
|
917 | |
|
|
918 | { |
|
|
919 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
920 | |
|
|
921 | #if CORO_JIT |
|
|
922 | save_perl_slots (slot); |
|
|
923 | #else |
|
|
924 | #define VARx(name,expr,type) slot->name = expr; |
429 | # include "state.h" |
925 | #include "state.h" |
430 | #undef VAR |
926 | #endif |
|
|
927 | } |
431 | } |
928 | } |
432 | |
929 | |
433 | /* |
930 | /* |
434 | * allocate various perl stacks. This is an exact copy |
931 | * allocate various perl stacks. This is almost an exact copy |
435 | * of perl.c:init_stacks, except that it uses less memory |
932 | * of perl.c:init_stacks, except that it uses less memory |
436 | * on the (sometimes correct) assumption that coroutines do |
933 | * on the (sometimes correct) assumption that coroutines do |
437 | * not usually need a lot of stackspace. |
934 | * not usually need a lot of stackspace. |
438 | */ |
935 | */ |
439 | #if PREFER_PERL_FUNCTIONS |
936 | #if CORO_PREFER_PERL_FUNCTIONS |
440 | # define coro_init_stacks init_stacks |
937 | # define coro_init_stacks(thx) init_stacks () |
441 | #else |
938 | #else |
442 | static void |
939 | static void |
443 | coro_init_stacks () |
940 | coro_init_stacks (pTHX) |
444 | { |
941 | { |
445 | PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); |
942 | PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */ |
446 | PL_curstackinfo->si_type = PERLSI_MAIN; |
943 | PL_curstackinfo->si_type = PERLSI_MAIN; |
447 | PL_curstack = PL_curstackinfo->si_stack; |
944 | PL_curstack = PL_curstackinfo->si_stack; |
448 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
945 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
449 | |
946 | |
450 | PL_stack_base = AvARRAY(PL_curstack); |
947 | PL_stack_base = AvARRAY(PL_curstack); |
451 | PL_stack_sp = PL_stack_base; |
948 | PL_stack_sp = PL_stack_base; |
452 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
949 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
453 | |
950 | |
454 | New(50,PL_tmps_stack,128,SV*); |
951 | New(50,PL_tmps_stack,32,SV*); |
455 | PL_tmps_floor = -1; |
952 | PL_tmps_floor = -1; |
456 | PL_tmps_ix = -1; |
953 | PL_tmps_ix = -1; |
457 | PL_tmps_max = 128; |
954 | PL_tmps_max = 32; |
458 | |
955 | |
459 | New(54,PL_markstack,32,I32); |
956 | New(54,PL_markstack,16,I32); |
460 | PL_markstack_ptr = PL_markstack; |
957 | PL_markstack_ptr = PL_markstack; |
461 | PL_markstack_max = PL_markstack + 32; |
958 | PL_markstack_max = PL_markstack + 16; |
462 | |
959 | |
463 | #ifdef SET_MARK_OFFSET |
960 | #ifdef SET_MARK_OFFSET |
464 | SET_MARK_OFFSET; |
961 | SET_MARK_OFFSET; |
465 | #endif |
962 | #endif |
466 | |
963 | |
467 | New(54,PL_scopestack,32,I32); |
964 | New(54,PL_scopestack,8,I32); |
468 | PL_scopestack_ix = 0; |
965 | PL_scopestack_ix = 0; |
469 | PL_scopestack_max = 32; |
966 | PL_scopestack_max = 8; |
|
|
967 | #if HAS_SCOPESTACK_NAME |
|
|
968 | New(54,PL_scopestack_name,8,const char*); |
|
|
969 | #endif |
470 | |
970 | |
471 | New(54,PL_savestack,64,ANY); |
971 | New(54,PL_savestack,24,ANY); |
472 | PL_savestack_ix = 0; |
972 | PL_savestack_ix = 0; |
473 | PL_savestack_max = 64; |
973 | PL_savestack_max = 24; |
|
|
974 | #if PERL_VERSION_ATLEAST (5,24,0) |
|
|
975 | /* perl 5.24 moves SS_MAXPUSH optimisation from */ |
|
|
976 | /* the header macros to PL_savestack_max */ |
|
|
977 | PL_savestack_max -= SS_MAXPUSH; |
|
|
978 | #endif |
474 | |
979 | |
475 | #if !PERL_VERSION_ATLEAST (5,9,0) |
980 | #if !PERL_VERSION_ATLEAST (5,10,0) |
476 | New(54,PL_retstack,16,OP*); |
981 | New(54,PL_retstack,4,OP*); |
477 | PL_retstack_ix = 0; |
982 | PL_retstack_ix = 0; |
478 | PL_retstack_max = 16; |
983 | PL_retstack_max = 4; |
479 | #endif |
984 | #endif |
480 | } |
985 | } |
481 | #endif |
986 | #endif |
482 | |
987 | |
483 | /* |
988 | /* |
484 | * destroy the stacks, the callchain etc... |
989 | * destroy the stacks, the callchain etc... |
485 | */ |
990 | */ |
486 | static void |
991 | static void |
487 | coro_destroy_stacks () |
992 | coro_destruct_stacks (pTHX) |
488 | { |
993 | { |
489 | if (!IN_DESTRUCT) |
|
|
490 | { |
|
|
491 | /* restore all saved variables and stuff */ |
|
|
492 | LEAVE_SCOPE (0); |
|
|
493 | assert (PL_tmps_floor == -1); |
|
|
494 | |
|
|
495 | /* free all temporaries */ |
|
|
496 | FREETMPS; |
|
|
497 | assert (PL_tmps_ix == -1); |
|
|
498 | |
|
|
499 | /* unwind all extra stacks */ |
|
|
500 | POPSTACK_TO (PL_mainstack); |
|
|
501 | |
|
|
502 | /* unwind main stack */ |
|
|
503 | dounwind (-1); |
|
|
504 | } |
|
|
505 | |
|
|
506 | while (PL_curstackinfo->si_next) |
994 | while (PL_curstackinfo->si_next) |
507 | PL_curstackinfo = PL_curstackinfo->si_next; |
995 | PL_curstackinfo = PL_curstackinfo->si_next; |
508 | |
996 | |
509 | while (PL_curstackinfo) |
997 | while (PL_curstackinfo) |
510 | { |
998 | { |
… | |
… | |
519 | } |
1007 | } |
520 | |
1008 | |
521 | Safefree (PL_tmps_stack); |
1009 | Safefree (PL_tmps_stack); |
522 | Safefree (PL_markstack); |
1010 | Safefree (PL_markstack); |
523 | Safefree (PL_scopestack); |
1011 | Safefree (PL_scopestack); |
|
|
1012 | #if HAS_SCOPESTACK_NAME |
|
|
1013 | Safefree (PL_scopestack_name); |
|
|
1014 | #endif |
524 | Safefree (PL_savestack); |
1015 | Safefree (PL_savestack); |
525 | #if !PERL_VERSION_ATLEAST (5,9,0) |
1016 | #if !PERL_VERSION_ATLEAST (5,10,0) |
526 | Safefree (PL_retstack); |
1017 | Safefree (PL_retstack); |
527 | #endif |
1018 | #endif |
528 | } |
1019 | } |
529 | |
1020 | |
|
|
1021 | #define CORO_RSS \ |
|
|
1022 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
1023 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
1024 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
1025 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
1026 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
1027 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
1028 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
1029 | |
|
|
1030 | static size_t |
|
|
1031 | coro_rss (pTHX_ struct coro *coro) |
|
|
1032 | { |
|
|
1033 | size_t rss = sizeof (*coro); |
|
|
1034 | |
|
|
1035 | if (coro->mainstack) |
|
|
1036 | { |
|
|
1037 | if (coro->flags & CF_RUNNING) |
|
|
1038 | { |
|
|
1039 | #define SYM(sym) PL_ ## sym |
|
|
1040 | CORO_RSS; |
|
|
1041 | #undef SYM |
|
|
1042 | } |
|
|
1043 | else |
|
|
1044 | { |
|
|
1045 | #define SYM(sym) coro->slot->sym |
|
|
1046 | CORO_RSS; |
|
|
1047 | #undef SYM |
|
|
1048 | } |
|
|
1049 | } |
|
|
1050 | |
|
|
1051 | return rss; |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | /** provide custom get/set/clear methods for %SIG elements ******************/ |
|
|
1055 | |
|
|
1056 | /* apparently < 5.8.8 */ |
|
|
1057 | #ifndef MgPV_nolen_const |
|
|
1058 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
1059 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
1060 | (const char*)(mg)->mg_ptr) |
|
|
1061 | #endif |
|
|
1062 | |
|
|
1063 | /* this will be a patched copy of PL_vtbl_sigelem */ |
|
|
1064 | static MGVTBL coro_sigelem_vtbl; |
|
|
1065 | |
|
|
1066 | static int ecb_cold |
|
|
1067 | coro_sig_copy (pTHX_ SV *sv, MAGIC *mg, SV *nsv, const char *name, I32 namlen) |
|
|
1068 | { |
|
|
1069 | char *key = SvPV_nolen ((SV *)name); |
|
|
1070 | |
|
|
1071 | /* do what mg_copy normally does */ |
|
|
1072 | sv_magic (nsv, mg->mg_obj, PERL_MAGIC_sigelem, name, namlen); |
|
|
1073 | assert (mg_find (nsv, PERL_MAGIC_sigelem)->mg_virtual == &PL_vtbl_sigelem); |
|
|
1074 | |
|
|
1075 | /* patch sigelem vtbl, but only for __WARN__ and __DIE__ */ |
|
|
1076 | if (*key == '_' |
|
|
1077 | && (strEQ (key, "__DIE__") |
|
|
1078 | || strEQ (key, "__WARN__"))) |
|
|
1079 | mg_find (nsv, PERL_MAGIC_sigelem)->mg_virtual = &coro_sigelem_vtbl; |
|
|
1080 | |
|
|
1081 | return 1; |
|
|
1082 | } |
|
|
1083 | |
|
|
1084 | /* perl does not have a %SIG vtbl, we provide one so we can override */ |
|
|
1085 | /* the magic vtbl for the __DIE__ and __WARN__ members */ |
|
|
1086 | static const MGVTBL coro_sig_vtbl = { |
|
|
1087 | 0, 0, 0, 0, 0, |
|
|
1088 | coro_sig_copy |
|
|
1089 | }; |
|
|
1090 | |
|
|
1091 | /* |
|
|
1092 | * This overrides the default magic get method of %SIG elements. |
|
|
1093 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
1094 | * and instead of trying to save and restore the hash elements (extremely slow), |
|
|
1095 | * we just provide our own readback here. |
|
|
1096 | */ |
|
|
1097 | static int ecb_cold |
|
|
1098 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
1099 | { |
|
|
1100 | const char *s = MgPV_nolen_const (mg); |
|
|
1101 | /* the key must be either __DIE__ or __WARN__ here */ |
|
|
1102 | SV **svp = s[2] == 'D' ? &PL_diehook : &PL_warnhook; |
|
|
1103 | |
|
|
1104 | SV *ssv; |
|
|
1105 | |
|
|
1106 | if (!*svp) |
|
|
1107 | ssv = &PL_sv_undef; |
|
|
1108 | else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */ |
|
|
1109 | ssv = sv_2mortal (newRV_inc (*svp)); |
|
|
1110 | else |
|
|
1111 | ssv = *svp; |
|
|
1112 | |
|
|
1113 | sv_setsv (sv, ssv); |
|
|
1114 | return 0; |
|
|
1115 | } |
|
|
1116 | |
|
|
1117 | static int ecb_cold |
|
|
1118 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
1119 | { |
|
|
1120 | const char *s = MgPV_nolen_const (mg); |
|
|
1121 | /* the key must be either __DIE__ or __WARN__ here */ |
|
|
1122 | SV **svp = s[2] == 'D' ? &PL_diehook : &PL_warnhook; |
|
|
1123 | |
|
|
1124 | SV *old = *svp; |
|
|
1125 | *svp = 0; |
|
|
1126 | SvREFCNT_dec (old); |
|
|
1127 | return 0; |
|
|
1128 | } |
|
|
1129 | |
|
|
1130 | static int ecb_cold |
|
|
1131 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
1132 | { |
|
|
1133 | const char *s = MgPV_nolen_const (mg); |
|
|
1134 | /* the key must be either __DIE__ or __WARN__ here */ |
|
|
1135 | SV **svp = s[2] == 'D' ? &PL_diehook : &PL_warnhook; |
|
|
1136 | |
|
|
1137 | SV *old = *svp; |
|
|
1138 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
|
|
1139 | SvREFCNT_dec (old); |
|
|
1140 | return 0; |
|
|
1141 | } |
|
|
1142 | |
|
|
1143 | static void |
|
|
1144 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
1145 | { |
|
|
1146 | /* kind of mega-hacky, but works */ |
|
|
1147 | ta->next = ta->prev = (struct coro *)ta; |
|
|
1148 | } |
|
|
1149 | |
|
|
1150 | static int |
|
|
1151 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
1152 | { |
|
|
1153 | return 0; |
|
|
1154 | } |
|
|
1155 | |
|
|
1156 | static int |
|
|
1157 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
1158 | { |
|
|
1159 | return 1; |
|
|
1160 | } |
|
|
1161 | |
530 | /** coroutine stack handling ************************************************/ |
1162 | /** coroutine stack handling ************************************************/ |
531 | |
1163 | |
532 | static void |
1164 | static UNOP init_perl_op; |
533 | setup_coro (struct coro *coro) |
1165 | |
|
|
1166 | ecb_noinline static void /* noinline to keep it out of the transfer fast path */ |
|
|
1167 | init_perl (pTHX_ struct coro *coro) |
534 | { |
1168 | { |
535 | /* |
1169 | /* |
536 | * emulate part of the perl startup here. |
1170 | * emulate part of the perl startup here. |
537 | */ |
1171 | */ |
538 | |
|
|
539 | coro_init_stacks (); |
1172 | coro_init_stacks (aTHX); |
540 | |
1173 | |
|
|
1174 | PL_runops = RUNOPS_DEFAULT; |
541 | PL_curcop = &PL_compiling; |
1175 | PL_curcop = &PL_compiling; |
542 | PL_in_eval = EVAL_NULL; |
1176 | PL_in_eval = EVAL_NULL; |
|
|
1177 | PL_comppad = 0; |
|
|
1178 | PL_comppad_name = 0; |
|
|
1179 | PL_comppad_name_fill = 0; |
|
|
1180 | PL_comppad_name_floor = 0; |
543 | PL_curpm = 0; |
1181 | PL_curpm = 0; |
|
|
1182 | PL_curpad = 0; |
544 | PL_localizing = 0; |
1183 | PL_localizing = 0; |
545 | PL_dirty = 0; |
|
|
546 | PL_restartop = 0; |
1184 | PL_restartop = 0; |
|
|
1185 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
1186 | PL_parser = 0; |
|
|
1187 | #endif |
|
|
1188 | PL_hints = 0; |
|
|
1189 | |
|
|
1190 | /* recreate the die/warn hooks */ |
|
|
1191 | PL_diehook = SvREFCNT_inc (rv_diehook); |
|
|
1192 | PL_warnhook = SvREFCNT_inc (rv_warnhook); |
|
|
1193 | |
|
|
1194 | GvSV (PL_defgv) = newSV (0); |
|
|
1195 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
1196 | GvSV (PL_errgv) = newSV (0); |
|
|
1197 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
1198 | GvHV (PL_hintgv) = newHV (); |
|
|
1199 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
1200 | hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints); |
|
|
1201 | #endif |
|
|
1202 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
1203 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
547 | |
1204 | |
548 | { |
1205 | { |
549 | dSP; |
1206 | dSP; |
550 | LOGOP myop; |
1207 | UNOP myop; |
551 | |
1208 | |
552 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
553 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
554 | |
|
|
555 | Zero (&myop, 1, LOGOP); |
1209 | Zero (&myop, 1, UNOP); |
556 | myop.op_next = Nullop; |
1210 | myop.op_next = Nullop; |
|
|
1211 | myop.op_type = OP_ENTERSUB; |
557 | myop.op_flags = OPf_WANT_VOID; |
1212 | myop.op_flags = OPf_WANT_VOID; |
558 | |
1213 | |
559 | PUSHMARK (SP); |
1214 | PUSHMARK (SP); |
560 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
1215 | PUSHs ((SV *)coro->startcv); |
561 | PUTBACK; |
1216 | PUTBACK; |
562 | PL_op = (OP *)&myop; |
1217 | PL_op = (OP *)&myop; |
563 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1218 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
564 | SPAGAIN; |
|
|
565 | } |
1219 | } |
566 | |
1220 | |
567 | ENTER; /* necessary e.g. for dounwind */ |
1221 | /* this newly created coroutine might be run on an existing cctx which most |
568 | } |
1222 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
1223 | */ |
|
|
1224 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
1225 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
1226 | slf_frame.destroy = 0; |
569 | |
1227 | |
|
|
1228 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
1229 | init_perl_op.op_next = PL_op; |
|
|
1230 | init_perl_op.op_type = OP_ENTERSUB; |
|
|
1231 | init_perl_op.op_ppaddr = pp_slf; |
|
|
1232 | /* no flags etc. required, as an init function won't be called */ |
|
|
1233 | |
|
|
1234 | PL_op = (OP *)&init_perl_op; |
|
|
1235 | |
|
|
1236 | /* copy throw, in case it was set before init_perl */ |
|
|
1237 | CORO_THROW = coro->except; |
|
|
1238 | |
|
|
1239 | SWAP_SVS_ENTER (coro); |
|
|
1240 | |
|
|
1241 | if (ecb_expect_false (enable_times)) |
|
|
1242 | { |
|
|
1243 | coro_times_update (); |
|
|
1244 | coro_times_sub (coro); |
|
|
1245 | } |
|
|
1246 | } |
|
|
1247 | |
570 | static void |
1248 | static void |
|
|
1249 | coro_unwind_stacks (pTHX) |
|
|
1250 | { |
|
|
1251 | if (!IN_DESTRUCT) |
|
|
1252 | { |
|
|
1253 | /* restore all saved variables and stuff */ |
|
|
1254 | LEAVE_SCOPE (0); |
|
|
1255 | assert (PL_tmps_floor == -1); |
|
|
1256 | |
|
|
1257 | /* free all temporaries */ |
|
|
1258 | FREETMPS; |
|
|
1259 | assert (PL_tmps_ix == -1); |
|
|
1260 | |
|
|
1261 | /* unwind all extra stacks */ |
|
|
1262 | POPSTACK_TO (PL_mainstack); |
|
|
1263 | |
|
|
1264 | /* unwind main stack */ |
|
|
1265 | dounwind (-1); |
|
|
1266 | } |
|
|
1267 | } |
|
|
1268 | |
|
|
1269 | static void |
|
|
1270 | destroy_perl (pTHX_ struct coro *coro) |
|
|
1271 | { |
|
|
1272 | SV *svf [9]; |
|
|
1273 | |
|
|
1274 | { |
|
|
1275 | SV *old_current = SvRV (coro_current); |
|
|
1276 | struct coro *current = SvSTATE (old_current); |
|
|
1277 | |
|
|
1278 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1279 | |
|
|
1280 | save_perl (aTHX_ current); |
|
|
1281 | |
|
|
1282 | /* this will cause transfer_check to croak on block*/ |
|
|
1283 | SvRV_set (coro_current, (SV *)coro->hv); |
|
|
1284 | |
|
|
1285 | load_perl (aTHX_ coro); |
|
|
1286 | |
|
|
1287 | /* restore swapped sv's */ |
|
|
1288 | SWAP_SVS_LEAVE (coro); |
|
|
1289 | |
|
|
1290 | coro_unwind_stacks (aTHX); |
|
|
1291 | |
|
|
1292 | coro_destruct_stacks (aTHX); |
|
|
1293 | |
|
|
1294 | /* now save some sv's to be free'd later */ |
|
|
1295 | svf [0] = GvSV (PL_defgv); |
|
|
1296 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1297 | svf [2] = GvSV (PL_errgv); |
|
|
1298 | svf [3] = (SV *)PL_defoutgv; |
|
|
1299 | svf [4] = PL_rs; |
|
|
1300 | svf [5] = GvSV (irsgv); |
|
|
1301 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1302 | svf [7] = PL_diehook; |
|
|
1303 | svf [8] = PL_warnhook; |
|
|
1304 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1305 | |
|
|
1306 | SvRV_set (coro_current, old_current); |
|
|
1307 | |
|
|
1308 | load_perl (aTHX_ current); |
|
|
1309 | } |
|
|
1310 | |
|
|
1311 | { |
|
|
1312 | unsigned int i; |
|
|
1313 | |
|
|
1314 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1315 | SvREFCNT_dec (svf [i]); |
|
|
1316 | |
|
|
1317 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1318 | SvREFCNT_dec (coro->rouse_cb); |
|
|
1319 | SvREFCNT_dec (coro->invoke_cb); |
|
|
1320 | SvREFCNT_dec (coro->invoke_av); |
|
|
1321 | SvREFCNT_dec (coro->on_enter_xs); |
|
|
1322 | SvREFCNT_dec (coro->on_leave_xs); |
|
|
1323 | } |
|
|
1324 | } |
|
|
1325 | |
|
|
1326 | ecb_inline void |
571 | free_coro_mortal () |
1327 | free_coro_mortal (pTHX) |
572 | { |
1328 | { |
573 | if (coro_mortal) |
1329 | if (ecb_expect_true (coro_mortal)) |
574 | { |
1330 | { |
575 | SvREFCNT_dec (coro_mortal); |
1331 | SvREFCNT_dec ((SV *)coro_mortal); |
576 | coro_mortal = 0; |
1332 | coro_mortal = 0; |
577 | } |
1333 | } |
578 | } |
1334 | } |
579 | |
1335 | |
580 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
581 | static void NOINLINE |
|
|
582 | prepare_cctx (coro_cctx *cctx) |
|
|
583 | { |
|
|
584 | dSP; |
|
|
585 | LOGOP myop; |
|
|
586 | |
|
|
587 | Zero (&myop, 1, LOGOP); |
|
|
588 | myop.op_next = PL_op; |
|
|
589 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
|
|
590 | |
|
|
591 | PUSHMARK (SP); |
|
|
592 | EXTEND (SP, 2); |
|
|
593 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
|
|
594 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
|
|
595 | PUTBACK; |
|
|
596 | PL_op = (OP *)&myop; |
|
|
597 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
598 | SPAGAIN; |
|
|
599 | } |
|
|
600 | |
|
|
601 | static void |
1336 | static int |
602 | coro_run (void *arg) |
1337 | runops_trace (pTHX) |
603 | { |
1338 | { |
604 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
1339 | COP *oldcop = 0; |
605 | UNLOCK; |
1340 | int oldcxix = -2; |
606 | |
1341 | |
607 | /* |
1342 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
608 | * this is a _very_ stripped down perl interpreter ;) |
1343 | { |
609 | */ |
1344 | PERL_ASYNC_CHECK (); |
|
|
1345 | |
|
|
1346 | if (cctx_current->flags & CC_TRACE_ALL) |
|
|
1347 | { |
|
|
1348 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
|
|
1349 | { |
|
|
1350 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
1351 | SV **bot, **top; |
|
|
1352 | AV *av = newAV (); /* return values */ |
|
|
1353 | SV **cb; |
|
|
1354 | dSP; |
|
|
1355 | |
|
|
1356 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
1357 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
1358 | if (isGV (gv)) |
|
|
1359 | gv_efullname3 (fullname, gv, 0); |
|
|
1360 | |
|
|
1361 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
1362 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
1363 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
1364 | : bot; |
|
|
1365 | |
|
|
1366 | av_extend (av, top - bot); |
|
|
1367 | while (bot < top) |
|
|
1368 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
|
|
1369 | |
|
|
1370 | PL_runops = RUNOPS_DEFAULT; |
|
|
1371 | ENTER; |
|
|
1372 | SAVETMPS; |
|
|
1373 | EXTEND (SP, 3); |
|
|
1374 | PUSHMARK (SP); |
|
|
1375 | PUSHs (&PL_sv_no); |
|
|
1376 | PUSHs (fullname); |
|
|
1377 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
1378 | PUTBACK; |
|
|
1379 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
1380 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1381 | SPAGAIN; |
|
|
1382 | FREETMPS; |
|
|
1383 | LEAVE; |
|
|
1384 | PL_runops = runops_trace; |
|
|
1385 | } |
|
|
1386 | |
|
|
1387 | if (oldcop != PL_curcop) |
|
|
1388 | { |
|
|
1389 | oldcop = PL_curcop; |
|
|
1390 | |
|
|
1391 | if (PL_curcop != &PL_compiling) |
|
|
1392 | { |
|
|
1393 | SV **cb; |
|
|
1394 | |
|
|
1395 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0) |
|
|
1396 | { |
|
|
1397 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
1398 | |
|
|
1399 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
1400 | { |
|
|
1401 | dSP; |
|
|
1402 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
1403 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
1404 | |
|
|
1405 | if (isGV (gv)) |
|
|
1406 | gv_efullname3 (fullname, gv, 0); |
|
|
1407 | |
|
|
1408 | PL_runops = RUNOPS_DEFAULT; |
|
|
1409 | ENTER; |
|
|
1410 | SAVETMPS; |
|
|
1411 | EXTEND (SP, 3); |
|
|
1412 | PUSHMARK (SP); |
|
|
1413 | PUSHs (&PL_sv_yes); |
|
|
1414 | PUSHs (fullname); |
|
|
1415 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
1416 | PUTBACK; |
|
|
1417 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
1418 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1419 | SPAGAIN; |
|
|
1420 | FREETMPS; |
|
|
1421 | LEAVE; |
|
|
1422 | PL_runops = runops_trace; |
|
|
1423 | } |
|
|
1424 | |
|
|
1425 | oldcxix = cxstack_ix; |
|
|
1426 | } |
|
|
1427 | |
|
|
1428 | if (cctx_current->flags & CC_TRACE_LINE) |
|
|
1429 | { |
|
|
1430 | dSP; |
|
|
1431 | |
|
|
1432 | PL_runops = RUNOPS_DEFAULT; |
|
|
1433 | ENTER; |
|
|
1434 | SAVETMPS; |
|
|
1435 | EXTEND (SP, 3); |
|
|
1436 | PL_runops = RUNOPS_DEFAULT; |
|
|
1437 | PUSHMARK (SP); |
|
|
1438 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
1439 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
1440 | PUTBACK; |
|
|
1441 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
1442 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1443 | SPAGAIN; |
|
|
1444 | FREETMPS; |
|
|
1445 | LEAVE; |
|
|
1446 | PL_runops = runops_trace; |
|
|
1447 | } |
|
|
1448 | } |
|
|
1449 | } |
|
|
1450 | } |
|
|
1451 | } |
|
|
1452 | |
|
|
1453 | TAINT_NOT; |
|
|
1454 | return 0; |
|
|
1455 | } |
|
|
1456 | |
|
|
1457 | static struct CoroSLF cctx_ssl_frame; |
|
|
1458 | |
|
|
1459 | static void |
|
|
1460 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1461 | { |
|
|
1462 | ta->prev = 0; |
|
|
1463 | } |
|
|
1464 | |
|
|
1465 | static int |
|
|
1466 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1467 | { |
|
|
1468 | *frame = cctx_ssl_frame; |
|
|
1469 | |
|
|
1470 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1471 | } |
|
|
1472 | |
|
|
1473 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
|
|
1474 | static void ecb_noinline |
|
|
1475 | cctx_prepare (pTHX) |
|
|
1476 | { |
610 | PL_top_env = &PL_start_env; |
1477 | PL_top_env = &PL_start_env; |
611 | |
1478 | |
|
|
1479 | if (cctx_current->flags & CC_TRACE) |
|
|
1480 | PL_runops = runops_trace; |
|
|
1481 | |
|
|
1482 | /* we already must be executing an SLF op, there is no other valid way |
|
|
1483 | * that can lead to creation of a new cctx */ |
|
|
1484 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1485 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
|
|
1486 | |
|
|
1487 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
|
|
1488 | cctx_ssl_frame = slf_frame; |
|
|
1489 | |
|
|
1490 | slf_frame.prepare = slf_prepare_set_stacklevel; |
|
|
1491 | slf_frame.check = slf_check_set_stacklevel; |
|
|
1492 | } |
|
|
1493 | |
|
|
1494 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1495 | ecb_inline void |
|
|
1496 | transfer_tail (pTHX) |
|
|
1497 | { |
|
|
1498 | free_coro_mortal (aTHX); |
|
|
1499 | } |
|
|
1500 | |
|
|
1501 | /* try to exit the same way perl's main function would do */ |
|
|
1502 | /* we do not bother resetting the environment or other things *7 |
|
|
1503 | /* that are not, uhm, essential */ |
|
|
1504 | /* this obviously also doesn't work when perl is embedded */ |
|
|
1505 | static void ecb_noinline ecb_cold |
|
|
1506 | perlish_exit (pTHX) |
|
|
1507 | { |
|
|
1508 | int exitstatus = perl_destruct (PL_curinterp); |
|
|
1509 | perl_free (PL_curinterp); |
|
|
1510 | exit (exitstatus); |
|
|
1511 | } |
|
|
1512 | |
|
|
1513 | /* |
|
|
1514 | * this is a _very_ stripped down perl interpreter ;) |
|
|
1515 | */ |
|
|
1516 | static void |
|
|
1517 | cctx_run (void *arg) |
|
|
1518 | { |
|
|
1519 | #ifdef USE_ITHREADS |
|
|
1520 | # if CORO_PTHREAD |
|
|
1521 | PERL_SET_CONTEXT (coro_thx); |
|
|
1522 | # endif |
|
|
1523 | #endif |
|
|
1524 | { |
|
|
1525 | dTHX; |
|
|
1526 | |
|
|
1527 | /* normally we would need to skip the entersub here */ |
|
|
1528 | /* not doing so will re-execute it, which is exactly what we want */ |
|
|
1529 | /* PL_nop = PL_nop->op_next */ |
|
|
1530 | |
612 | /* inject call to cctx_init */ |
1531 | /* inject a fake subroutine call to cctx_init */ |
613 | prepare_cctx ((coro_cctx *)arg); |
1532 | cctx_prepare (aTHX); |
614 | |
1533 | |
|
|
1534 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1535 | transfer_tail (aTHX); |
|
|
1536 | |
615 | /* somebody will hit me for both perl_run and PL_restartop */ |
1537 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
616 | PL_restartop = PL_op; |
1538 | PL_restartop = PL_op; |
617 | perl_run (PL_curinterp); |
1539 | perl_run (PL_curinterp); |
|
|
1540 | /* |
|
|
1541 | * Unfortunately, there is no way to get at the return values of the |
|
|
1542 | * coro body here, as perl_run destroys these. Likewise, we cannot catch |
|
|
1543 | * runtime errors here, as this is just a random interpreter, not a thread. |
|
|
1544 | */ |
618 | |
1545 | |
619 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
1546 | /* |
620 | abort (); |
1547 | * pp_entersub in 5.24 no longer ENTERs, but perl_destruct |
|
|
1548 | * requires PL_scopestack_ix, so do it here if required. |
|
|
1549 | */ |
|
|
1550 | if (!PL_scopestack_ix) |
|
|
1551 | ENTER; |
|
|
1552 | |
|
|
1553 | /* |
|
|
1554 | * If perl-run returns we assume exit() was being called or the coro |
|
|
1555 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
1556 | * reason for perl_run to return. We try to mimic whatever perl is normally |
|
|
1557 | * doing in that case. YMMV. |
|
|
1558 | */ |
|
|
1559 | perlish_exit (aTHX); |
|
|
1560 | } |
621 | } |
1561 | } |
622 | |
1562 | |
623 | static coro_cctx * |
1563 | static coro_cctx * |
624 | cctx_new () |
1564 | cctx_new (void) |
625 | { |
1565 | { |
626 | coro_cctx *cctx; |
1566 | coro_cctx *cctx; |
627 | |
1567 | |
628 | ++cctx_count; |
1568 | ++cctx_count; |
629 | |
|
|
630 | Newz (0, cctx, 1, coro_cctx); |
1569 | New (0, cctx, 1, coro_cctx); |
631 | |
1570 | |
632 | #if HAVE_MMAP |
1571 | cctx->gen = cctx_gen; |
|
|
1572 | cctx->flags = 0; |
|
|
1573 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
633 | |
1574 | |
634 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
1575 | return cctx; |
635 | /* mmap supposedly does allocate-on-write for us */ |
1576 | } |
636 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
637 | |
1577 | |
638 | if (cctx->sptr != (void *)-1) |
1578 | /* create a new cctx only suitable as source */ |
639 | { |
1579 | static coro_cctx * |
640 | # if STACKGUARD |
1580 | cctx_new_empty (void) |
641 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
1581 | { |
642 | # endif |
1582 | coro_cctx *cctx = cctx_new (); |
643 | REGISTER_STACK ( |
|
|
644 | cctx, |
|
|
645 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
|
|
646 | cctx->ssize + (char *)cctx->sptr |
|
|
647 | ); |
|
|
648 | |
1583 | |
649 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
1584 | cctx->stack.sptr = 0; |
|
|
1585 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1586 | |
|
|
1587 | return cctx; |
|
|
1588 | } |
|
|
1589 | |
|
|
1590 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1591 | static coro_cctx * |
|
|
1592 | cctx_new_run (void) |
|
|
1593 | { |
|
|
1594 | coro_cctx *cctx = cctx_new (); |
|
|
1595 | |
|
|
1596 | if (!coro_stack_alloc (&cctx->stack, cctx_stacksize)) |
650 | } |
1597 | { |
651 | else |
|
|
652 | #endif |
|
|
653 | { |
|
|
654 | cctx->ssize = -STACKSIZE * (long)sizeof (long); |
|
|
655 | New (0, cctx->sptr, STACKSIZE, long); |
|
|
656 | |
|
|
657 | if (!cctx->sptr) |
|
|
658 | { |
|
|
659 | perror ("FATAL: unable to allocate stack for coroutine"); |
1598 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
660 | _exit (EXIT_FAILURE); |
1599 | _exit (EXIT_FAILURE); |
661 | } |
1600 | } |
662 | |
1601 | |
663 | REGISTER_STACK ( |
|
|
664 | cctx, |
|
|
665 | (char *)cctx->sptr, |
|
|
666 | (char *)cctx->sptr - cctx->ssize |
|
|
667 | ); |
|
|
668 | |
|
|
669 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, -cctx->ssize); |
1602 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze); |
670 | } |
|
|
671 | |
1603 | |
672 | return cctx; |
1604 | return cctx; |
673 | } |
1605 | } |
674 | |
1606 | |
675 | static void |
1607 | static void |
676 | cctx_destroy (coro_cctx *cctx) |
1608 | cctx_destroy (coro_cctx *cctx) |
677 | { |
1609 | { |
678 | if (!cctx) |
1610 | if (!cctx) |
679 | return; |
1611 | return; |
680 | |
1612 | |
|
|
1613 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); |
|
|
1614 | |
681 | --cctx_count; |
1615 | --cctx_count; |
|
|
1616 | coro_destroy (&cctx->cctx); |
682 | |
1617 | |
683 | #if USE_VALGRIND |
1618 | coro_stack_free (&cctx->stack); |
684 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
685 | #endif |
|
|
686 | |
|
|
687 | #if HAVE_MMAP |
|
|
688 | if (cctx->ssize > 0) |
|
|
689 | munmap (cctx->sptr, cctx->ssize); |
|
|
690 | else |
|
|
691 | #endif |
|
|
692 | Safefree (cctx->sptr); |
|
|
693 | |
1619 | |
694 | Safefree (cctx); |
1620 | Safefree (cctx); |
695 | } |
1621 | } |
696 | |
1622 | |
|
|
1623 | /* wether this cctx should be destructed */ |
|
|
1624 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
|
|
1625 | |
697 | static coro_cctx * |
1626 | static coro_cctx * |
698 | cctx_get () |
1627 | cctx_get (pTHX) |
699 | { |
1628 | { |
700 | coro_cctx *cctx; |
1629 | while (ecb_expect_true (cctx_first)) |
701 | |
|
|
702 | if (cctx_first) |
|
|
703 | { |
1630 | { |
704 | cctx = cctx_first; |
1631 | coro_cctx *cctx = cctx_first; |
705 | cctx_first = cctx->next; |
1632 | cctx_first = cctx->next; |
706 | --cctx_idle; |
1633 | --cctx_idle; |
707 | } |
1634 | |
708 | else |
1635 | if (ecb_expect_true (!CCTX_EXPIRED (cctx))) |
709 | { |
1636 | return cctx; |
710 | cctx = cctx_new (); |
1637 | |
711 | PL_op = PL_op->op_next; |
1638 | cctx_destroy (cctx); |
712 | } |
1639 | } |
713 | |
1640 | |
714 | return cctx; |
1641 | return cctx_new_run (); |
715 | } |
1642 | } |
716 | |
1643 | |
717 | static void |
1644 | static void |
718 | cctx_put (coro_cctx *cctx) |
1645 | cctx_put (coro_cctx *cctx) |
719 | { |
1646 | { |
|
|
1647 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr)); |
|
|
1648 | |
720 | /* free another cctx if overlimit */ |
1649 | /* free another cctx if overlimit */ |
721 | if (cctx_idle >= MAX_IDLE_CCTX) |
1650 | if (ecb_expect_false (cctx_idle >= cctx_max_idle)) |
722 | { |
1651 | { |
723 | coro_cctx *first = cctx_first; |
1652 | coro_cctx *first = cctx_first; |
724 | cctx_first = first->next; |
1653 | cctx_first = first->next; |
725 | --cctx_idle; |
1654 | --cctx_idle; |
726 | |
1655 | |
727 | assert (!first->inuse); |
|
|
728 | cctx_destroy (first); |
1656 | cctx_destroy (first); |
729 | } |
1657 | } |
730 | |
1658 | |
731 | ++cctx_idle; |
1659 | ++cctx_idle; |
732 | cctx->next = cctx_first; |
1660 | cctx->next = cctx_first; |
733 | cctx_first = cctx; |
1661 | cctx_first = cctx; |
734 | } |
1662 | } |
735 | |
1663 | |
736 | /** coroutine switching *****************************************************/ |
1664 | /** coroutine switching *****************************************************/ |
737 | |
1665 | |
738 | /* never call directly, always through the coro_state_transfer global variable */ |
1666 | static void |
739 | static void NOINLINE |
|
|
740 | transfer (struct coro *prev, struct coro *next) |
1667 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1668 | { |
|
|
1669 | /* TODO: throwing up here is considered harmful */ |
|
|
1670 | |
|
|
1671 | if (ecb_expect_true (prev != next)) |
|
|
1672 | { |
|
|
1673 | if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1674 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
|
|
1675 | |
|
|
1676 | if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED))) |
|
|
1677 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
|
|
1678 | |
|
|
1679 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
1680 | if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING)) |
|
|
1681 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1682 | #endif |
|
|
1683 | } |
|
|
1684 | } |
|
|
1685 | |
|
|
1686 | /* always use the TRANSFER macro */ |
|
|
1687 | static void ecb_noinline /* noinline so we have a fixed stackframe */ |
|
|
1688 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
741 | { |
1689 | { |
742 | dSTACKLEVEL; |
1690 | dSTACKLEVEL; |
743 | |
1691 | |
744 | /* sometimes transfer is only called to set idle_sp */ |
1692 | /* sometimes transfer is only called to set idle_sp */ |
745 | if (!next) |
1693 | if (ecb_expect_false (!prev)) |
746 | { |
1694 | { |
747 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1695 | cctx_current->idle_sp = STACKLEVEL; |
748 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1696 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
749 | } |
|
|
750 | else if (prev != next) |
|
|
751 | { |
1697 | } |
|
|
1698 | else if (ecb_expect_true (prev != next)) |
|
|
1699 | { |
752 | coro_cctx *prev__cctx; |
1700 | coro_cctx *cctx_prev; |
753 | |
1701 | |
754 | if (prev->flags & CF_NEW) |
1702 | if (ecb_expect_false (prev->flags & CF_NEW)) |
755 | { |
1703 | { |
756 | /* create a new empty context */ |
1704 | /* create a new empty/source context */ |
757 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
758 | prev->cctx->inuse = 1; |
|
|
759 | prev->flags &= ~CF_NEW; |
1705 | prev->flags &= ~CF_NEW; |
760 | prev->flags |= CF_RUNNING; |
1706 | prev->flags |= CF_RUNNING; |
761 | } |
1707 | } |
762 | |
1708 | |
763 | /*TODO: must not croak here */ |
|
|
764 | if (!prev->flags & CF_RUNNING) |
|
|
765 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
766 | |
|
|
767 | if (next->flags & CF_RUNNING) |
|
|
768 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
769 | |
|
|
770 | if (next->flags & CF_DESTROYED) |
|
|
771 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
772 | |
|
|
773 | prev->flags &= ~CF_RUNNING; |
1709 | prev->flags &= ~CF_RUNNING; |
774 | next->flags |= CF_RUNNING; |
1710 | next->flags |= CF_RUNNING; |
775 | |
1711 | |
776 | LOCK; |
1712 | /* first get rid of the old state */ |
|
|
1713 | save_perl (aTHX_ prev); |
777 | |
1714 | |
778 | if (next->flags & CF_NEW) |
1715 | if (ecb_expect_false (next->flags & CF_NEW)) |
779 | { |
1716 | { |
780 | /* need to start coroutine */ |
1717 | /* need to start coroutine */ |
781 | next->flags &= ~CF_NEW; |
1718 | next->flags &= ~CF_NEW; |
782 | /* first get rid of the old state */ |
|
|
783 | save_perl (prev); |
|
|
784 | /* setup coroutine call */ |
1719 | /* setup coroutine call */ |
785 | setup_coro (next); |
1720 | init_perl (aTHX_ next); |
786 | /* need a new stack */ |
|
|
787 | assert (!next->cctx); |
|
|
788 | } |
1721 | } |
789 | else |
1722 | else |
|
|
1723 | load_perl (aTHX_ next); |
|
|
1724 | |
|
|
1725 | /* possibly untie and reuse the cctx */ |
|
|
1726 | if (ecb_expect_true ( |
|
|
1727 | cctx_current->idle_sp == STACKLEVEL |
|
|
1728 | && !(cctx_current->flags & CC_TRACE) |
|
|
1729 | && !force_cctx |
|
|
1730 | )) |
790 | { |
1731 | { |
791 | /* coroutine already started */ |
1732 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
792 | save_perl (prev); |
1733 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
793 | load_perl (next); |
1734 | |
|
|
1735 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
|
|
1736 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
|
|
1737 | if (ecb_expect_false (CCTX_EXPIRED (cctx_current))) |
|
|
1738 | if (ecb_expect_true (!next->cctx)) |
|
|
1739 | next->cctx = cctx_get (aTHX); |
|
|
1740 | |
|
|
1741 | cctx_put (cctx_current); |
794 | } |
1742 | } |
|
|
1743 | else |
|
|
1744 | prev->cctx = cctx_current; |
795 | |
1745 | |
796 | prev__cctx = prev->cctx; |
1746 | ++next->usecount; |
797 | |
1747 | |
798 | /* possibly "free" the cctx */ |
1748 | cctx_prev = cctx_current; |
799 | if (prev__cctx->idle_sp == STACKLEVEL) |
1749 | cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
|
|
1750 | |
|
|
1751 | next->cctx = 0; |
|
|
1752 | |
|
|
1753 | if (ecb_expect_false (cctx_prev != cctx_current)) |
800 | { |
1754 | { |
801 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1755 | cctx_prev->top_env = PL_top_env; |
802 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1756 | PL_top_env = cctx_current->top_env; |
803 | |
1757 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
804 | prev->cctx = 0; |
|
|
805 | |
|
|
806 | cctx_put (prev__cctx); |
|
|
807 | prev__cctx->inuse = 0; |
|
|
808 | } |
1758 | } |
809 | |
1759 | |
810 | if (!next->cctx) |
1760 | transfer_tail (aTHX); |
811 | { |
|
|
812 | next->cctx = cctx_get (); |
|
|
813 | assert (!next->cctx->inuse); |
|
|
814 | next->cctx->inuse = 1; |
|
|
815 | } |
|
|
816 | |
|
|
817 | if (prev__cctx != next->cctx) |
|
|
818 | { |
|
|
819 | prev__cctx->top_env = PL_top_env; |
|
|
820 | PL_top_env = next->cctx->top_env; |
|
|
821 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
|
|
822 | } |
|
|
823 | |
|
|
824 | free_coro_mortal (); |
|
|
825 | UNLOCK; |
|
|
826 | } |
1761 | } |
827 | } |
1762 | } |
828 | |
1763 | |
829 | struct transfer_args |
1764 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
830 | { |
|
|
831 | struct coro *prev, *next; |
|
|
832 | }; |
|
|
833 | |
|
|
834 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next) |
1765 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
835 | |
1766 | |
836 | /** high level stuff ********************************************************/ |
1767 | /** high level stuff ********************************************************/ |
837 | |
1768 | |
|
|
1769 | /* this function is actually Coro, not Coro::State, but we call it from here */ |
|
|
1770 | /* because it is convenient - but it hasn't been declared yet for that reason */ |
838 | static int |
1771 | static void |
|
|
1772 | coro_call_on_destroy (pTHX_ struct coro *coro); |
|
|
1773 | |
|
|
1774 | static void |
839 | coro_state_destroy (struct coro *coro) |
1775 | coro_state_destroy (pTHX_ struct coro *coro) |
840 | { |
1776 | { |
841 | if (coro->flags & CF_DESTROYED) |
1777 | if (coro->flags & CF_ZOMBIE) |
842 | return 0; |
1778 | return; |
843 | |
1779 | |
|
|
1780 | slf_destroy (aTHX_ coro); |
|
|
1781 | |
844 | coro->flags |= CF_DESTROYED; |
1782 | coro->flags |= CF_ZOMBIE; |
845 | |
1783 | |
846 | if (coro->flags & CF_READY) |
1784 | if (coro->flags & CF_READY) |
847 | { |
1785 | { |
848 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1786 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
849 | /* alternative: look through all ready queues and remove the coro */ |
1787 | /* alternative: look through all ready queues and remove the coro */ |
850 | LOCK; |
|
|
851 | --coro_nready; |
1788 | --coro_nready; |
852 | UNLOCK; |
|
|
853 | } |
1789 | } |
854 | else |
1790 | else |
855 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1791 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
856 | |
1792 | |
857 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1793 | if (coro->next) coro->next->prev = coro->prev; |
858 | { |
1794 | if (coro->prev) coro->prev->next = coro->next; |
859 | struct coro temp; |
1795 | if (coro == coro_first) coro_first = coro->next; |
860 | |
1796 | |
861 | assert (!(coro->flags & CF_RUNNING)); |
1797 | if (coro->mainstack |
862 | |
1798 | && coro->mainstack != main_mainstack |
863 | Zero (&temp, 1, struct coro); |
1799 | && coro->slot |
864 | temp.save = CORO_SAVE_ALL; |
1800 | && !PL_dirty) |
865 | |
1801 | destroy_perl (aTHX_ coro); |
866 | if (coro->flags & CF_RUNNING) |
|
|
867 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
868 | |
|
|
869 | save_perl (&temp); |
|
|
870 | load_perl (coro); |
|
|
871 | |
|
|
872 | coro_destroy_stacks (); |
|
|
873 | |
|
|
874 | load_perl (&temp); /* this will get rid of defsv etc.. */ |
|
|
875 | |
|
|
876 | coro->mainstack = 0; |
|
|
877 | } |
|
|
878 | |
1802 | |
879 | cctx_destroy (coro->cctx); |
1803 | cctx_destroy (coro->cctx); |
|
|
1804 | SvREFCNT_dec (coro->startcv); |
880 | SvREFCNT_dec (coro->args); |
1805 | SvREFCNT_dec (coro->args); |
|
|
1806 | SvREFCNT_dec (coro->swap_sv); |
|
|
1807 | SvREFCNT_dec (CORO_THROW); |
881 | |
1808 | |
882 | return 1; |
1809 | coro_call_on_destroy (aTHX_ coro); |
|
|
1810 | |
|
|
1811 | /* more destruction mayhem in coro_state_free */ |
883 | } |
1812 | } |
884 | |
1813 | |
885 | static int |
1814 | static int |
886 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1815 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
887 | { |
1816 | { |
888 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1817 | struct coro *coro = (struct coro *)mg->mg_ptr; |
889 | mg->mg_ptr = 0; |
1818 | mg->mg_ptr = 0; |
890 | |
1819 | |
891 | if (--coro->refcnt < 0) |
|
|
892 | { |
|
|
893 | coro_state_destroy (coro); |
1820 | coro_state_destroy (aTHX_ coro); |
|
|
1821 | SvREFCNT_dec (coro->on_destroy); |
|
|
1822 | SvREFCNT_dec (coro->status); |
|
|
1823 | |
894 | Safefree (coro); |
1824 | Safefree (coro); |
895 | } |
|
|
896 | |
1825 | |
897 | return 0; |
1826 | return 0; |
898 | } |
1827 | } |
899 | |
1828 | |
900 | static int |
1829 | static int ecb_cold |
901 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1830 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
902 | { |
1831 | { |
903 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1832 | /* called when perl clones the current process the slow way (windows process emulation) */ |
904 | |
1833 | /* WE SIMply nuke the pointers in the copy, causing perl to croak */ |
905 | ++coro->refcnt; |
1834 | mg->mg_ptr = 0; |
|
|
1835 | mg->mg_virtual = 0; |
906 | |
1836 | |
907 | return 0; |
1837 | return 0; |
908 | } |
1838 | } |
909 | |
1839 | |
910 | static MGVTBL coro_state_vtbl = { |
1840 | static MGVTBL coro_state_vtbl = { |
… | |
… | |
916 | #else |
1846 | #else |
917 | # define MGf_DUP 0 |
1847 | # define MGf_DUP 0 |
918 | #endif |
1848 | #endif |
919 | }; |
1849 | }; |
920 | |
1850 | |
921 | static struct coro * |
|
|
922 | SvSTATE (SV *coro) |
|
|
923 | { |
|
|
924 | HV *stash; |
|
|
925 | MAGIC *mg; |
|
|
926 | |
|
|
927 | if (SvROK (coro)) |
|
|
928 | coro = SvRV (coro); |
|
|
929 | |
|
|
930 | stash = SvSTASH (coro); |
|
|
931 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
932 | { |
|
|
933 | /* very slow, but rare, check */ |
|
|
934 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
935 | croak ("Coro::State object required"); |
|
|
936 | } |
|
|
937 | |
|
|
938 | mg = SvMAGIC (coro); |
|
|
939 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
940 | return (struct coro *)mg->mg_ptr; |
|
|
941 | } |
|
|
942 | |
|
|
943 | static void |
1851 | static void |
944 | prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1852 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
945 | { |
1853 | { |
946 | ta->prev = SvSTATE (prev_sv); |
1854 | ta->prev = SvSTATE (prev_sv); |
947 | ta->next = SvSTATE (next_sv); |
1855 | ta->next = SvSTATE (next_sv); |
|
|
1856 | TRANSFER_CHECK (*ta); |
948 | } |
1857 | } |
949 | |
1858 | |
950 | static void |
1859 | static void |
951 | api_transfer (SV *prev_sv, SV *next_sv) |
1860 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
952 | { |
1861 | { |
953 | struct transfer_args ta; |
1862 | struct coro_transfer_args ta; |
954 | |
1863 | |
955 | prepare_transfer (&ta, prev_sv, next_sv); |
1864 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
956 | TRANSFER (ta); |
1865 | TRANSFER (ta, 1); |
|
|
1866 | } |
|
|
1867 | |
|
|
1868 | /** Coro ********************************************************************/ |
|
|
1869 | |
|
|
1870 | ecb_inline void |
|
|
1871 | coro_enq (pTHX_ struct coro *coro) |
|
|
1872 | { |
|
|
1873 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
|
|
1874 | |
|
|
1875 | SvREFCNT_inc_NN (coro->hv); |
|
|
1876 | |
|
|
1877 | coro->next_ready = 0; |
|
|
1878 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1879 | ready [1] = coro; |
|
|
1880 | } |
|
|
1881 | |
|
|
1882 | ecb_inline struct coro * |
|
|
1883 | coro_deq (pTHX) |
|
|
1884 | { |
|
|
1885 | int prio; |
|
|
1886 | |
|
|
1887 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
|
|
1888 | { |
|
|
1889 | struct coro **ready = coro_ready [prio]; |
|
|
1890 | |
|
|
1891 | if (ready [0]) |
|
|
1892 | { |
|
|
1893 | struct coro *coro = ready [0]; |
|
|
1894 | ready [0] = coro->next_ready; |
|
|
1895 | return coro; |
|
|
1896 | } |
|
|
1897 | } |
|
|
1898 | |
|
|
1899 | return 0; |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | static void |
|
|
1903 | invoke_sv_ready_hook_helper (void) |
|
|
1904 | { |
|
|
1905 | dTHX; |
|
|
1906 | dSP; |
|
|
1907 | |
|
|
1908 | ENTER; |
|
|
1909 | SAVETMPS; |
|
|
1910 | |
|
|
1911 | PUSHMARK (SP); |
|
|
1912 | PUTBACK; |
|
|
1913 | call_sv (coro_readyhook, G_VOID | G_DISCARD); |
|
|
1914 | |
|
|
1915 | FREETMPS; |
|
|
1916 | LEAVE; |
957 | } |
1917 | } |
958 | |
1918 | |
959 | static int |
1919 | static int |
960 | api_save (SV *coro_sv, int new_save) |
1920 | api_ready (pTHX_ SV *coro_sv) |
961 | { |
1921 | { |
962 | struct coro *coro = SvSTATE (coro_sv); |
1922 | struct coro *coro = SvSTATE (coro_sv); |
963 | int old_save = coro->save; |
|
|
964 | |
|
|
965 | if (new_save >= 0) |
|
|
966 | coro->save = new_save; |
|
|
967 | |
|
|
968 | return old_save; |
|
|
969 | } |
|
|
970 | |
|
|
971 | /** Coro ********************************************************************/ |
|
|
972 | |
|
|
973 | static void |
|
|
974 | coro_enq (SV *coro_sv) |
|
|
975 | { |
|
|
976 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
|
|
977 | } |
|
|
978 | |
|
|
979 | static SV * |
|
|
980 | coro_deq (int min_prio) |
|
|
981 | { |
|
|
982 | int prio = PRIO_MAX - PRIO_MIN; |
|
|
983 | |
|
|
984 | min_prio -= PRIO_MIN; |
|
|
985 | if (min_prio < 0) |
|
|
986 | min_prio = 0; |
|
|
987 | |
|
|
988 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
|
|
989 | if (AvFILLp (coro_ready [prio]) >= 0) |
|
|
990 | return av_shift (coro_ready [prio]); |
|
|
991 | |
|
|
992 | return 0; |
|
|
993 | } |
|
|
994 | |
|
|
995 | static int |
|
|
996 | api_ready (SV *coro_sv) |
|
|
997 | { |
|
|
998 | struct coro *coro; |
|
|
999 | |
|
|
1000 | if (SvROK (coro_sv)) |
|
|
1001 | coro_sv = SvRV (coro_sv); |
|
|
1002 | |
|
|
1003 | coro = SvSTATE (coro_sv); |
|
|
1004 | |
1923 | |
1005 | if (coro->flags & CF_READY) |
1924 | if (coro->flags & CF_READY) |
1006 | return 0; |
1925 | return 0; |
1007 | |
1926 | |
1008 | coro->flags |= CF_READY; |
1927 | coro->flags |= CF_READY; |
1009 | |
1928 | |
1010 | LOCK; |
1929 | coro_enq (aTHX_ coro); |
1011 | coro_enq (SvREFCNT_inc (coro_sv)); |
1930 | |
1012 | ++coro_nready; |
1931 | if (!coro_nready++) |
1013 | UNLOCK; |
1932 | if (coroapi.readyhook) |
|
|
1933 | coroapi.readyhook (); |
1014 | |
1934 | |
1015 | return 1; |
1935 | return 1; |
1016 | } |
1936 | } |
1017 | |
1937 | |
1018 | static int |
1938 | static int |
1019 | api_is_ready (SV *coro_sv) |
1939 | api_is_ready (pTHX_ SV *coro_sv) |
1020 | { |
1940 | { |
1021 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1941 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1022 | } |
1942 | } |
1023 | |
1943 | |
|
|
1944 | /* expects to own a reference to next->hv */ |
|
|
1945 | ecb_inline void |
|
|
1946 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
|
|
1947 | { |
|
|
1948 | SV *prev_sv = SvRV (coro_current); |
|
|
1949 | |
|
|
1950 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1951 | ta->next = next; |
|
|
1952 | |
|
|
1953 | TRANSFER_CHECK (*ta); |
|
|
1954 | |
|
|
1955 | SvRV_set (coro_current, (SV *)next->hv); |
|
|
1956 | |
|
|
1957 | free_coro_mortal (aTHX); |
|
|
1958 | coro_mortal = prev_sv; |
|
|
1959 | } |
|
|
1960 | |
1024 | static void |
1961 | static void |
1025 | prepare_schedule (struct transfer_args *ta) |
1962 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1026 | { |
1963 | { |
1027 | SV *prev_sv, *next_sv; |
|
|
1028 | |
|
|
1029 | for (;;) |
1964 | for (;;) |
1030 | { |
1965 | { |
1031 | LOCK; |
1966 | struct coro *next = coro_deq (aTHX); |
1032 | next_sv = coro_deq (PRIO_MIN); |
|
|
1033 | |
1967 | |
|
|
1968 | if (ecb_expect_true (next)) |
|
|
1969 | { |
|
|
1970 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1971 | if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED))) |
|
|
1972 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1973 | else |
|
|
1974 | { |
|
|
1975 | next->flags &= ~CF_READY; |
|
|
1976 | --coro_nready; |
|
|
1977 | |
|
|
1978 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1979 | break; |
|
|
1980 | } |
|
|
1981 | } |
|
|
1982 | else |
|
|
1983 | { |
1034 | /* nothing to schedule: call the idle handler */ |
1984 | /* nothing to schedule: call the idle handler */ |
1035 | if (!next_sv) |
1985 | if (SvROK (sv_idle) |
|
|
1986 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1987 | { |
|
|
1988 | if (SvRV (sv_idle) == SvRV (coro_current)) |
|
|
1989 | { |
|
|
1990 | require_pv ("Carp"); |
|
|
1991 | |
|
|
1992 | { |
|
|
1993 | dSP; |
|
|
1994 | |
|
|
1995 | ENTER; |
|
|
1996 | SAVETMPS; |
|
|
1997 | |
|
|
1998 | PUSHMARK (SP); |
|
|
1999 | XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0))); |
|
|
2000 | PUTBACK; |
|
|
2001 | call_pv ("Carp::confess", G_VOID | G_DISCARD); |
|
|
2002 | |
|
|
2003 | FREETMPS; |
|
|
2004 | LEAVE; |
|
|
2005 | } |
|
|
2006 | } |
|
|
2007 | |
|
|
2008 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
2009 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
2010 | --coro_nready; |
|
|
2011 | } |
|
|
2012 | else |
|
|
2013 | { |
|
|
2014 | /* TODO: deprecated, remove, cannot work reliably *//*D*/ |
|
|
2015 | dSP; |
|
|
2016 | |
|
|
2017 | ENTER; |
|
|
2018 | SAVETMPS; |
|
|
2019 | |
|
|
2020 | PUSHMARK (SP); |
|
|
2021 | PUTBACK; |
|
|
2022 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
2023 | |
|
|
2024 | FREETMPS; |
|
|
2025 | LEAVE; |
|
|
2026 | } |
|
|
2027 | } |
|
|
2028 | } |
|
|
2029 | } |
|
|
2030 | |
|
|
2031 | ecb_inline void |
|
|
2032 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
|
|
2033 | { |
|
|
2034 | api_ready (aTHX_ coro_current); |
|
|
2035 | prepare_schedule (aTHX_ ta); |
|
|
2036 | } |
|
|
2037 | |
|
|
2038 | ecb_inline void |
|
|
2039 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
2040 | { |
|
|
2041 | SV *prev = SvRV (coro_current); |
|
|
2042 | |
|
|
2043 | if (coro_nready) |
|
|
2044 | { |
|
|
2045 | prepare_schedule (aTHX_ ta); |
|
|
2046 | api_ready (aTHX_ prev); |
|
|
2047 | } |
|
|
2048 | else |
|
|
2049 | prepare_nop (aTHX_ ta); |
|
|
2050 | } |
|
|
2051 | |
|
|
2052 | static void |
|
|
2053 | api_schedule (pTHX) |
|
|
2054 | { |
|
|
2055 | struct coro_transfer_args ta; |
|
|
2056 | |
|
|
2057 | prepare_schedule (aTHX_ &ta); |
|
|
2058 | TRANSFER (ta, 1); |
|
|
2059 | } |
|
|
2060 | |
|
|
2061 | static void |
|
|
2062 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
2063 | { |
|
|
2064 | struct coro_transfer_args ta; |
|
|
2065 | struct coro *next = SvSTATE (coro_sv); |
|
|
2066 | |
|
|
2067 | SvREFCNT_inc_NN (coro_sv); |
|
|
2068 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
2069 | } |
|
|
2070 | |
|
|
2071 | static int |
|
|
2072 | api_cede (pTHX) |
|
|
2073 | { |
|
|
2074 | struct coro_transfer_args ta; |
|
|
2075 | |
|
|
2076 | prepare_cede (aTHX_ &ta); |
|
|
2077 | |
|
|
2078 | if (ecb_expect_true (ta.prev != ta.next)) |
|
|
2079 | { |
|
|
2080 | TRANSFER (ta, 1); |
|
|
2081 | return 1; |
|
|
2082 | } |
|
|
2083 | else |
|
|
2084 | return 0; |
|
|
2085 | } |
|
|
2086 | |
|
|
2087 | static int |
|
|
2088 | api_cede_notself (pTHX) |
|
|
2089 | { |
|
|
2090 | if (coro_nready) |
|
|
2091 | { |
|
|
2092 | struct coro_transfer_args ta; |
|
|
2093 | |
|
|
2094 | prepare_cede_notself (aTHX_ &ta); |
|
|
2095 | TRANSFER (ta, 1); |
|
|
2096 | return 1; |
|
|
2097 | } |
|
|
2098 | else |
|
|
2099 | return 0; |
|
|
2100 | } |
|
|
2101 | |
|
|
2102 | static void |
|
|
2103 | api_trace (pTHX_ SV *coro_sv, int flags) |
|
|
2104 | { |
|
|
2105 | struct coro *coro = SvSTATE (coro_sv); |
|
|
2106 | |
|
|
2107 | if (coro->flags & CF_RUNNING) |
|
|
2108 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
2109 | |
|
|
2110 | if (flags & CC_TRACE) |
|
|
2111 | { |
|
|
2112 | if (!coro->cctx) |
|
|
2113 | coro->cctx = cctx_new_run (); |
|
|
2114 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
2115 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
|
|
2116 | |
|
|
2117 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
2118 | } |
|
|
2119 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
2120 | { |
|
|
2121 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
2122 | |
|
|
2123 | if (coro->flags & CF_RUNNING) |
|
|
2124 | PL_runops = RUNOPS_DEFAULT; |
|
|
2125 | else |
|
|
2126 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
2127 | } |
|
|
2128 | } |
|
|
2129 | |
|
|
2130 | static void |
|
|
2131 | coro_push_av (pTHX_ AV *av, I32 gimme_v) |
|
|
2132 | { |
|
|
2133 | if (AvFILLp (av) >= 0 && gimme_v != G_VOID) |
|
|
2134 | { |
|
|
2135 | dSP; |
|
|
2136 | |
|
|
2137 | if (gimme_v == G_SCALAR) |
|
|
2138 | XPUSHs (AvARRAY (av)[AvFILLp (av)]); |
|
|
2139 | else |
|
|
2140 | { |
|
|
2141 | int i; |
|
|
2142 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2143 | |
|
|
2144 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2145 | PUSHs (AvARRAY (av)[i]); |
|
|
2146 | } |
|
|
2147 | |
|
|
2148 | PUTBACK; |
|
|
2149 | } |
|
|
2150 | } |
|
|
2151 | |
|
|
2152 | static void |
|
|
2153 | coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb) |
|
|
2154 | { |
|
|
2155 | if (!coro->on_destroy) |
|
|
2156 | coro->on_destroy = newAV (); |
|
|
2157 | |
|
|
2158 | av_push (coro->on_destroy, cb); |
|
|
2159 | } |
|
|
2160 | |
|
|
2161 | static void |
|
|
2162 | slf_destroy_join (pTHX_ struct CoroSLF *frame) |
|
|
2163 | { |
|
|
2164 | SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv); |
|
|
2165 | } |
|
|
2166 | |
|
|
2167 | static int |
|
|
2168 | slf_check_join (pTHX_ struct CoroSLF *frame) |
|
|
2169 | { |
|
|
2170 | struct coro *coro = (struct coro *)frame->data; |
|
|
2171 | |
|
|
2172 | if (!coro->status) |
|
|
2173 | return 1; |
|
|
2174 | |
|
|
2175 | frame->destroy = 0; |
|
|
2176 | |
|
|
2177 | coro_push_av (aTHX_ coro->status, GIMME_V); |
|
|
2178 | |
|
|
2179 | SvREFCNT_dec ((SV *)coro->hv); |
|
|
2180 | |
|
|
2181 | return 0; |
|
|
2182 | } |
|
|
2183 | |
|
|
2184 | static void |
|
|
2185 | slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2186 | { |
|
|
2187 | struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef); |
|
|
2188 | |
|
|
2189 | if (items > 1) |
|
|
2190 | croak ("join called with too many arguments"); |
|
|
2191 | |
|
|
2192 | if (coro->status) |
|
|
2193 | frame->prepare = prepare_nop; |
|
|
2194 | else |
|
|
2195 | { |
|
|
2196 | coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current))); |
|
|
2197 | frame->prepare = prepare_schedule; |
|
|
2198 | } |
|
|
2199 | |
|
|
2200 | frame->check = slf_check_join; |
|
|
2201 | frame->destroy = slf_destroy_join; |
|
|
2202 | frame->data = (void *)coro; |
|
|
2203 | SvREFCNT_inc (coro->hv); |
|
|
2204 | } |
|
|
2205 | |
|
|
2206 | static void |
|
|
2207 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
2208 | { |
|
|
2209 | AV *od = coro->on_destroy; |
|
|
2210 | |
|
|
2211 | if (!od) |
|
|
2212 | return; |
|
|
2213 | |
|
|
2214 | coro->on_destroy = 0; |
|
|
2215 | sv_2mortal ((SV *)od); |
|
|
2216 | |
|
|
2217 | while (AvFILLp (od) >= 0) |
|
|
2218 | { |
|
|
2219 | SV *cb = sv_2mortal (av_pop (od)); |
|
|
2220 | |
|
|
2221 | /* coro hv's (and only hv's at the moment) are supported as well */ |
|
|
2222 | if (SvSTATEhv_p (aTHX_ cb)) |
|
|
2223 | api_ready (aTHX_ cb); |
|
|
2224 | else |
|
|
2225 | { |
|
|
2226 | dSP; /* don't disturb outer sp */ |
|
|
2227 | PUSHMARK (SP); |
|
|
2228 | |
|
|
2229 | if (coro->status) |
|
|
2230 | { |
|
|
2231 | PUTBACK; |
|
|
2232 | coro_push_av (aTHX_ coro->status, G_ARRAY); |
|
|
2233 | SPAGAIN; |
|
|
2234 | } |
|
|
2235 | |
|
|
2236 | PUTBACK; |
|
|
2237 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2238 | } |
|
|
2239 | } |
|
|
2240 | } |
|
|
2241 | |
|
|
2242 | static void |
|
|
2243 | coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2244 | { |
|
|
2245 | AV *av; |
|
|
2246 | |
|
|
2247 | if (coro->status) |
|
|
2248 | { |
|
|
2249 | av = coro->status; |
|
|
2250 | av_clear (av); |
|
|
2251 | } |
|
|
2252 | else |
|
|
2253 | av = coro->status = newAV (); |
|
|
2254 | |
|
|
2255 | /* items are actually not so common, so optimise for this case */ |
|
|
2256 | if (items) |
|
|
2257 | { |
|
|
2258 | int i; |
|
|
2259 | |
|
|
2260 | av_extend (av, items - 1); |
|
|
2261 | |
|
|
2262 | for (i = 0; i < items; ++i) |
|
|
2263 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
2264 | } |
|
|
2265 | } |
|
|
2266 | |
|
|
2267 | static void |
|
|
2268 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
|
|
2269 | { |
|
|
2270 | av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */ |
|
|
2271 | api_ready (aTHX_ sv_manager); |
|
|
2272 | |
|
|
2273 | frame->prepare = prepare_schedule; |
|
|
2274 | frame->check = slf_check_repeat; |
|
|
2275 | |
|
|
2276 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
2277 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
2278 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2279 | } |
|
|
2280 | |
|
|
2281 | static void |
|
|
2282 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2283 | { |
|
|
2284 | HV *coro_hv = (HV *)SvRV (coro_current); |
|
|
2285 | |
|
|
2286 | coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items); |
|
|
2287 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2288 | } |
|
|
2289 | |
|
|
2290 | static void |
|
|
2291 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2292 | { |
|
|
2293 | HV *coro_hv; |
|
|
2294 | struct coro *coro; |
|
|
2295 | |
|
|
2296 | if (items <= 0) |
|
|
2297 | croak ("Coro::cancel called without coro object,"); |
|
|
2298 | |
|
|
2299 | coro = SvSTATE (arg [0]); |
|
|
2300 | coro_hv = coro->hv; |
|
|
2301 | |
|
|
2302 | coro_set_status (aTHX_ coro, arg + 1, items - 1); |
|
|
2303 | |
|
|
2304 | if (ecb_expect_false (coro->flags & CF_NOCANCEL)) |
|
|
2305 | { |
|
|
2306 | /* coro currently busy cancelling something, so just notify it */ |
|
|
2307 | coro->slf_frame.data = (void *)coro; |
|
|
2308 | |
|
|
2309 | frame->prepare = prepare_nop; |
|
|
2310 | frame->check = slf_check_nop; |
|
|
2311 | } |
|
|
2312 | else if (coro_hv == (HV *)SvRV (coro_current)) |
|
|
2313 | { |
|
|
2314 | /* cancelling the current coro is allowed, and equals terminate */ |
|
|
2315 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2316 | } |
|
|
2317 | else |
|
|
2318 | { |
|
|
2319 | struct coro *self = SvSTATE_current; |
|
|
2320 | |
|
|
2321 | if (!self) |
|
|
2322 | croak ("Coro::cancel called outside of thread content,"); |
|
|
2323 | |
|
|
2324 | /* otherwise we cancel directly, purely for speed reasons |
|
|
2325 | * unfortunately, this requires some magic trickery, as |
|
|
2326 | * somebody else could cancel us, so we have to fight the cancellation. |
|
|
2327 | * this is ugly, and hopefully fully worth the extra speed. |
|
|
2328 | * besides, I can't get the slow-but-safe version working... |
|
|
2329 | */ |
|
|
2330 | slf_frame.data = 0; |
|
|
2331 | self->flags |= CF_NOCANCEL; |
|
|
2332 | coro_state_destroy (aTHX_ coro); |
|
|
2333 | self->flags &= ~CF_NOCANCEL; |
|
|
2334 | |
|
|
2335 | if (slf_frame.data) |
|
|
2336 | { |
|
|
2337 | /* while we were busy we have been cancelled, so terminate */ |
|
|
2338 | slf_init_terminate_cancel_common (aTHX_ frame, self->hv); |
|
|
2339 | } |
|
|
2340 | else |
|
|
2341 | { |
|
|
2342 | frame->prepare = prepare_nop; |
|
|
2343 | frame->check = slf_check_nop; |
|
|
2344 | } |
|
|
2345 | } |
|
|
2346 | } |
|
|
2347 | |
|
|
2348 | static int |
|
|
2349 | slf_check_safe_cancel (pTHX_ struct CoroSLF *frame) |
|
|
2350 | { |
|
|
2351 | frame->prepare = 0; |
|
|
2352 | coro_unwind_stacks (aTHX); |
|
|
2353 | |
|
|
2354 | slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current)); |
|
|
2355 | |
|
|
2356 | return 1; |
|
|
2357 | } |
|
|
2358 | |
|
|
2359 | static int |
|
|
2360 | safe_cancel (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2361 | { |
|
|
2362 | if (coro->cctx) |
|
|
2363 | croak ("coro inside C callback, unable to cancel at this time, caught"); |
|
|
2364 | |
|
|
2365 | if (coro->flags & CF_NEW) |
|
|
2366 | { |
|
|
2367 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2368 | coro_state_destroy (aTHX_ coro); |
|
|
2369 | } |
|
|
2370 | else |
|
|
2371 | { |
|
|
2372 | if (!coro->slf_frame.prepare) |
|
|
2373 | croak ("coro outside an SLF function, unable to cancel at this time, caught"); |
|
|
2374 | |
|
|
2375 | slf_destroy (aTHX_ coro); |
|
|
2376 | |
|
|
2377 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2378 | coro->slf_frame.prepare = prepare_nop; |
|
|
2379 | coro->slf_frame.check = slf_check_safe_cancel; |
|
|
2380 | |
|
|
2381 | api_ready (aTHX_ (SV *)coro->hv); |
|
|
2382 | } |
|
|
2383 | |
|
|
2384 | return 1; |
|
|
2385 | } |
|
|
2386 | |
|
|
2387 | /*****************************************************************************/ |
|
|
2388 | /* async pool handler */ |
|
|
2389 | |
|
|
2390 | static int |
|
|
2391 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
2392 | { |
|
|
2393 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2394 | struct coro *coro = (struct coro *)frame->data; |
|
|
2395 | |
|
|
2396 | if (!coro->invoke_cb) |
|
|
2397 | return 1; /* loop till we have invoke */ |
|
|
2398 | else |
|
|
2399 | { |
|
|
2400 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2401 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2402 | |
|
|
2403 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2404 | |
|
|
2405 | { |
|
|
2406 | dSP; |
|
|
2407 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
2408 | PUTBACK; |
|
|
2409 | } |
|
|
2410 | |
|
|
2411 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
2412 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
2413 | coro->invoke_av = 0; |
|
|
2414 | |
|
|
2415 | return 0; |
|
|
2416 | } |
|
|
2417 | } |
|
|
2418 | |
|
|
2419 | static void |
|
|
2420 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2421 | { |
|
|
2422 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2423 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2424 | |
|
|
2425 | if (ecb_expect_true (coro->saved_deffh)) |
|
|
2426 | { |
|
|
2427 | /* subsequent iteration */ |
|
|
2428 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2429 | coro->saved_deffh = 0; |
|
|
2430 | |
|
|
2431 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2432 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2433 | { |
|
|
2434 | slf_init_terminate_cancel_common (aTHX_ frame, hv); |
|
|
2435 | return; |
|
|
2436 | } |
|
|
2437 | else |
|
|
2438 | { |
|
|
2439 | av_clear (GvAV (PL_defgv)); |
|
|
2440 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
2441 | |
|
|
2442 | if (ecb_expect_false (coro->swap_sv)) |
|
|
2443 | { |
|
|
2444 | SWAP_SVS_LEAVE (coro); |
|
|
2445 | SvREFCNT_dec_NN (coro->swap_sv); |
|
|
2446 | coro->swap_sv = 0; |
|
|
2447 | } |
|
|
2448 | |
|
|
2449 | coro->prio = 0; |
|
|
2450 | |
|
|
2451 | if (ecb_expect_false (coro->cctx) && ecb_expect_false (coro->cctx->flags & CC_TRACE)) |
|
|
2452 | api_trace (aTHX_ coro_current, 0); |
|
|
2453 | |
|
|
2454 | frame->prepare = prepare_schedule; |
|
|
2455 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2456 | } |
|
|
2457 | } |
|
|
2458 | else |
|
|
2459 | { |
|
|
2460 | /* first iteration, simply fall through */ |
|
|
2461 | frame->prepare = prepare_nop; |
|
|
2462 | } |
|
|
2463 | |
|
|
2464 | frame->check = slf_check_pool_handler; |
|
|
2465 | frame->data = (void *)coro; |
|
|
2466 | } |
|
|
2467 | |
|
|
2468 | /*****************************************************************************/ |
|
|
2469 | /* rouse callback */ |
|
|
2470 | |
|
|
2471 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2472 | |
|
|
2473 | static void |
|
|
2474 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2475 | { |
|
|
2476 | dXSARGS; |
|
|
2477 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2478 | |
|
|
2479 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2480 | { |
|
|
2481 | /* first call, set args */ |
|
|
2482 | SV *coro = SvRV (data); |
|
|
2483 | AV *av = newAV (); |
|
|
2484 | |
|
|
2485 | SvRV_set (data, (SV *)av); |
|
|
2486 | |
|
|
2487 | /* better take a full copy of the arguments */ |
|
|
2488 | while (items--) |
|
|
2489 | av_store (av, items, newSVsv (ST (items))); |
|
|
2490 | |
|
|
2491 | api_ready (aTHX_ coro); |
|
|
2492 | SvREFCNT_dec (coro); |
|
|
2493 | } |
|
|
2494 | |
|
|
2495 | XSRETURN_EMPTY; |
|
|
2496 | } |
|
|
2497 | |
|
|
2498 | static int |
|
|
2499 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2500 | { |
|
|
2501 | SV *data = (SV *)frame->data; |
|
|
2502 | |
|
|
2503 | if (CORO_THROW) |
|
|
2504 | return 0; |
|
|
2505 | |
|
|
2506 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2507 | return 1; |
|
|
2508 | |
|
|
2509 | /* now push all results on the stack */ |
|
|
2510 | { |
|
|
2511 | dSP; |
|
|
2512 | AV *av = (AV *)SvRV (data); |
|
|
2513 | int i; |
|
|
2514 | |
|
|
2515 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2516 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2517 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2518 | |
|
|
2519 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2520 | AvFILLp (av) = -1; |
|
|
2521 | av_undef (av); |
|
|
2522 | |
|
|
2523 | PUTBACK; |
|
|
2524 | } |
|
|
2525 | |
|
|
2526 | return 0; |
|
|
2527 | } |
|
|
2528 | |
|
|
2529 | static void |
|
|
2530 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2531 | { |
|
|
2532 | SV *cb; |
|
|
2533 | |
|
|
2534 | if (items) |
|
|
2535 | cb = arg [0]; |
|
|
2536 | else |
|
|
2537 | { |
|
|
2538 | struct coro *coro = SvSTATE_current; |
|
|
2539 | |
|
|
2540 | if (!coro->rouse_cb) |
|
|
2541 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2542 | |
|
|
2543 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2544 | coro->rouse_cb = 0; |
|
|
2545 | } |
|
|
2546 | |
|
|
2547 | if (!SvROK (cb) |
|
|
2548 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2549 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2550 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2551 | |
|
|
2552 | { |
|
|
2553 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
|
|
2554 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2555 | |
|
|
2556 | frame->data = (void *)data; |
|
|
2557 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2558 | frame->check = slf_check_rouse_wait; |
|
|
2559 | } |
|
|
2560 | } |
|
|
2561 | |
|
|
2562 | static SV * |
|
|
2563 | coro_new_rouse_cb (pTHX) |
|
|
2564 | { |
|
|
2565 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2566 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2567 | SV *data = newRV_inc ((SV *)hv); |
|
|
2568 | SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2569 | |
|
|
2570 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2571 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2572 | |
|
|
2573 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2574 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2575 | |
|
|
2576 | return cb; |
|
|
2577 | } |
|
|
2578 | |
|
|
2579 | /*****************************************************************************/ |
|
|
2580 | /* schedule-like-function opcode (SLF) */ |
|
|
2581 | |
|
|
2582 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2583 | static const CV *slf_cv; |
|
|
2584 | static SV **slf_argv; |
|
|
2585 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2586 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2587 | |
|
|
2588 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2589 | /* recreate the stack frame as perl will on following calls */ |
|
|
2590 | /* since entersub cleared the stack */ |
|
|
2591 | static OP * |
|
|
2592 | pp_restore (pTHX) |
|
|
2593 | { |
|
|
2594 | int i; |
|
|
2595 | SV **SP = PL_stack_base + slf_ax; |
|
|
2596 | |
|
|
2597 | PUSHMARK (SP); |
|
|
2598 | |
|
|
2599 | EXTEND (SP, slf_argc + 1); |
|
|
2600 | |
|
|
2601 | for (i = 0; i < slf_argc; ++i) |
|
|
2602 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2603 | |
|
|
2604 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2605 | |
|
|
2606 | RETURNOP (slf_restore.op_first); |
|
|
2607 | } |
|
|
2608 | |
|
|
2609 | static void |
|
|
2610 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2611 | { |
|
|
2612 | SV **arg = (SV **)slf_frame.data; |
|
|
2613 | |
|
|
2614 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2615 | } |
|
|
2616 | |
|
|
2617 | static void |
|
|
2618 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2619 | { |
|
|
2620 | if (items != 2) |
|
|
2621 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2622 | |
|
|
2623 | frame->prepare = slf_prepare_transfer; |
|
|
2624 | frame->check = slf_check_nop; |
|
|
2625 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2626 | } |
|
|
2627 | |
|
|
2628 | static void |
|
|
2629 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2630 | { |
|
|
2631 | frame->prepare = prepare_schedule; |
|
|
2632 | frame->check = slf_check_nop; |
|
|
2633 | } |
|
|
2634 | |
|
|
2635 | static void |
|
|
2636 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2637 | { |
|
|
2638 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2639 | |
|
|
2640 | SvREFCNT_inc_NN (next->hv); |
|
|
2641 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2642 | } |
|
|
2643 | |
|
|
2644 | static void |
|
|
2645 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2646 | { |
|
|
2647 | if (!items) |
|
|
2648 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2649 | |
|
|
2650 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2651 | frame->prepare = slf_prepare_schedule_to; |
|
|
2652 | frame->check = slf_check_nop; |
|
|
2653 | } |
|
|
2654 | |
|
|
2655 | static void |
|
|
2656 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2657 | { |
|
|
2658 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2659 | |
|
|
2660 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2661 | } |
|
|
2662 | |
|
|
2663 | static void |
|
|
2664 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2665 | { |
|
|
2666 | frame->prepare = prepare_cede; |
|
|
2667 | frame->check = slf_check_nop; |
|
|
2668 | } |
|
|
2669 | |
|
|
2670 | static void |
|
|
2671 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2672 | { |
|
|
2673 | frame->prepare = prepare_cede_notself; |
|
|
2674 | frame->check = slf_check_nop; |
|
|
2675 | } |
|
|
2676 | |
|
|
2677 | /* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ |
|
|
2678 | static void |
|
|
2679 | slf_destroy (pTHX_ struct coro *coro) |
|
|
2680 | { |
|
|
2681 | struct CoroSLF frame = coro->slf_frame; |
|
|
2682 | |
|
|
2683 | /* |
|
|
2684 | * The on_destroy below most likely is from an SLF call. |
|
|
2685 | * Since by definition the SLF call will not finish when we destroy |
|
|
2686 | * the coro, we will have to force-finish it here, otherwise |
|
|
2687 | * cleanup functions cannot call SLF functions. |
|
|
2688 | */ |
|
|
2689 | coro->slf_frame.prepare = 0; |
|
|
2690 | |
|
|
2691 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
2692 | if (frame.destroy && frame.prepare && !PL_dirty) |
|
|
2693 | frame.destroy (aTHX_ &frame); |
|
|
2694 | } |
|
|
2695 | |
|
|
2696 | /* |
|
|
2697 | * these not obviously related functions are all rolled into one |
|
|
2698 | * function to increase chances that they all will call transfer with the same |
|
|
2699 | * stack offset |
|
|
2700 | * SLF stands for "schedule-like-function". |
|
|
2701 | */ |
|
|
2702 | static OP * |
|
|
2703 | pp_slf (pTHX) |
|
|
2704 | { |
|
|
2705 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2706 | |
|
|
2707 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2708 | /* the latter happens when a new coro has been started */ |
|
|
2709 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2710 | if (ecb_expect_true (!slf_frame.prepare)) |
|
|
2711 | { |
|
|
2712 | /* first iteration */ |
|
|
2713 | dSP; |
|
|
2714 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2715 | int items = SP - arg; /* args without function object */ |
|
|
2716 | SV *gv = *sp; |
|
|
2717 | |
|
|
2718 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2719 | /* for us, divert to the real entersub */ |
|
|
2720 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2721 | || !GvCV (gv) |
|
|
2722 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2723 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2724 | |
|
|
2725 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2726 | { |
|
|
2727 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2728 | AV *av = GvAV (PL_defgv); |
|
|
2729 | arg = AvARRAY (av); |
|
|
2730 | items = AvFILLp (av) + 1; |
|
|
2731 | } |
|
|
2732 | |
|
|
2733 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2734 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2735 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2736 | |
|
|
2737 | /* pop args */ |
|
|
2738 | SP = PL_stack_base + POPMARK; |
|
|
2739 | |
|
|
2740 | PUTBACK; |
|
|
2741 | } |
|
|
2742 | |
|
|
2743 | /* now that we have a slf_frame, interpret it! */ |
|
|
2744 | /* we use a callback system not to make the code needlessly */ |
|
|
2745 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2746 | |
|
|
2747 | do |
|
|
2748 | { |
|
|
2749 | struct coro_transfer_args ta; |
|
|
2750 | |
|
|
2751 | slf_frame.prepare (aTHX_ &ta); |
|
|
2752 | TRANSFER (ta, 0); |
|
|
2753 | |
|
|
2754 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2755 | } |
|
|
2756 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2757 | |
|
|
2758 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2759 | |
|
|
2760 | /* exception handling */ |
|
|
2761 | if (ecb_expect_false (CORO_THROW)) |
|
|
2762 | { |
|
|
2763 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2764 | |
|
|
2765 | CORO_THROW = 0; |
|
|
2766 | sv_setsv (ERRSV, exception); |
|
|
2767 | croak (0); |
|
|
2768 | } |
|
|
2769 | |
|
|
2770 | /* return value handling - mostly like entersub */ |
|
|
2771 | /* make sure we put something on the stack in scalar context */ |
|
|
2772 | if (GIMME_V == G_SCALAR |
|
|
2773 | && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1)) |
|
|
2774 | { |
|
|
2775 | dSP; |
|
|
2776 | SV **bot = PL_stack_base + checkmark; |
|
|
2777 | |
|
|
2778 | if (sp == bot) /* too few, push undef */ |
|
|
2779 | bot [1] = &PL_sv_undef; |
|
|
2780 | else /* too many, take last one */ |
|
|
2781 | bot [1] = *sp; |
|
|
2782 | |
|
|
2783 | SP = bot + 1; |
|
|
2784 | |
|
|
2785 | PUTBACK; |
|
|
2786 | } |
|
|
2787 | |
|
|
2788 | return NORMAL; |
|
|
2789 | } |
|
|
2790 | |
|
|
2791 | static void |
|
|
2792 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2793 | { |
|
|
2794 | int i; |
|
|
2795 | SV **arg = PL_stack_base + ax; |
|
|
2796 | int items = PL_stack_sp - arg + 1; |
|
|
2797 | |
|
|
2798 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2799 | |
|
|
2800 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2801 | && PL_op->op_ppaddr != pp_slf) |
|
|
2802 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2803 | |
|
|
2804 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2805 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2806 | slf_cv = cv; |
|
|
2807 | |
|
|
2808 | /* we patch the op, and then re-run the whole call */ |
|
|
2809 | /* we have to put the same argument on the stack for this to work */ |
|
|
2810 | /* and this will be done by pp_restore */ |
|
|
2811 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2812 | slf_restore.op_type = OP_CUSTOM; |
|
|
2813 | slf_restore.op_ppaddr = pp_restore; |
|
|
2814 | slf_restore.op_first = PL_op; |
|
|
2815 | |
|
|
2816 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2817 | |
|
|
2818 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2819 | { |
|
|
2820 | if (items > slf_arga) |
|
|
2821 | { |
|
|
2822 | slf_arga = items; |
|
|
2823 | Safefree (slf_argv); |
|
|
2824 | New (0, slf_argv, slf_arga, SV *); |
|
|
2825 | } |
|
|
2826 | |
|
|
2827 | slf_argc = items; |
|
|
2828 | |
|
|
2829 | for (i = 0; i < items; ++i) |
|
|
2830 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2831 | } |
|
|
2832 | else |
|
|
2833 | slf_argc = 0; |
|
|
2834 | |
|
|
2835 | PL_op->op_ppaddr = pp_slf; |
|
|
2836 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2837 | |
|
|
2838 | PL_op = (OP *)&slf_restore; |
|
|
2839 | } |
|
|
2840 | |
|
|
2841 | /*****************************************************************************/ |
|
|
2842 | /* dynamic wind */ |
|
|
2843 | |
|
|
2844 | static void |
|
|
2845 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2846 | { |
|
|
2847 | dSP; |
|
|
2848 | |
|
|
2849 | PUSHSTACK; |
|
|
2850 | |
|
|
2851 | PUSHMARK (SP); |
|
|
2852 | PUTBACK; |
|
|
2853 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2854 | SPAGAIN; |
|
|
2855 | |
|
|
2856 | POPSTACK; |
|
|
2857 | } |
|
|
2858 | |
|
|
2859 | static SV * |
|
|
2860 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2861 | { |
|
|
2862 | AV *av = *avp; |
|
|
2863 | SV *res = av_pop (av); |
|
|
2864 | |
|
|
2865 | if (AvFILLp (av) < 0) |
|
|
2866 | { |
|
|
2867 | *avp = 0; |
|
|
2868 | SvREFCNT_dec (av); |
|
|
2869 | } |
|
|
2870 | |
|
|
2871 | return res; |
|
|
2872 | } |
|
|
2873 | |
|
|
2874 | static void |
|
|
2875 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2876 | { |
|
|
2877 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2878 | SvREFCNT_dec (cb); |
|
|
2879 | } |
|
|
2880 | |
|
|
2881 | static void |
|
|
2882 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2883 | { |
|
|
2884 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2885 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2886 | } |
|
|
2887 | |
|
|
2888 | static void |
|
|
2889 | enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg) |
|
|
2890 | { |
|
|
2891 | if (!hook) |
|
|
2892 | return; |
|
|
2893 | |
|
|
2894 | if (!*avp) |
|
|
2895 | { |
|
|
2896 | *avp = newAV (); |
|
|
2897 | AvREAL_off (*avp); |
|
|
2898 | } |
|
|
2899 | |
|
|
2900 | av_push (*avp, (SV *)hook); |
|
|
2901 | av_push (*avp, (SV *)arg); |
|
|
2902 | } |
|
|
2903 | |
|
|
2904 | static void |
|
|
2905 | enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute) |
|
|
2906 | { |
|
|
2907 | AV *av = *avp; |
|
|
2908 | int i; |
|
|
2909 | |
|
|
2910 | if (!av) |
|
|
2911 | return; |
|
|
2912 | |
|
|
2913 | for (i = AvFILLp (av) - 1; i >= 0; i -= 2) |
|
|
2914 | if (AvARRAY (av)[i] == (SV *)hook) |
|
|
2915 | { |
|
|
2916 | if (execute) |
|
|
2917 | hook (aTHX_ (void *)AvARRAY (av)[i + 1]); |
|
|
2918 | |
|
|
2919 | memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1); |
|
|
2920 | av_pop (av); |
|
|
2921 | av_pop (av); |
|
|
2922 | break; |
|
|
2923 | } |
|
|
2924 | |
|
|
2925 | if (AvFILLp (av) >= 0) |
|
|
2926 | { |
|
|
2927 | *avp = 0; |
|
|
2928 | SvREFCNT_dec_NN (av); |
|
|
2929 | } |
|
|
2930 | } |
|
|
2931 | |
|
|
2932 | static void |
|
|
2933 | api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg) |
|
|
2934 | { |
|
|
2935 | struct coro *coro = SvSTATE (coro_sv); |
|
|
2936 | |
|
|
2937 | if (SvSTATE_current == coro) |
|
|
2938 | if (enter) |
|
|
2939 | enter (aTHX_ enter_arg); |
|
|
2940 | |
|
|
2941 | enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg); |
|
|
2942 | enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg); |
|
|
2943 | } |
|
|
2944 | |
|
|
2945 | static void |
|
|
2946 | api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave) |
|
|
2947 | { |
|
|
2948 | struct coro *coro = SvSTATE (coro_sv); |
|
|
2949 | |
|
|
2950 | enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0); |
|
|
2951 | enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro); |
|
|
2952 | } |
|
|
2953 | |
|
|
2954 | static void |
|
|
2955 | savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter) |
|
|
2956 | { |
|
|
2957 | struct coro *coro = SvSTATE_current; |
|
|
2958 | |
|
|
2959 | enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0); |
|
|
2960 | } |
|
|
2961 | |
|
|
2962 | static void |
|
|
2963 | savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave) |
|
|
2964 | { |
|
|
2965 | struct coro *coro = SvSTATE_current; |
|
|
2966 | |
|
|
2967 | enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1); |
|
|
2968 | } |
|
|
2969 | |
|
|
2970 | static void |
|
|
2971 | api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg) |
|
|
2972 | { |
|
|
2973 | api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg); |
|
|
2974 | |
|
|
2975 | /* this ought to be much cheaper than malloc + a single destructor call */ |
|
|
2976 | if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter); |
|
|
2977 | if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave); |
|
|
2978 | } |
|
|
2979 | |
|
|
2980 | /*****************************************************************************/ |
|
|
2981 | /* PerlIO::cede */ |
|
|
2982 | |
|
|
2983 | typedef struct |
|
|
2984 | { |
|
|
2985 | PerlIOBuf base; |
|
|
2986 | NV next, every; |
|
|
2987 | } PerlIOCede; |
|
|
2988 | |
|
|
2989 | static IV ecb_cold |
|
|
2990 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
2991 | { |
|
|
2992 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2993 | |
|
|
2994 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
2995 | self->next = nvtime () + self->every; |
|
|
2996 | |
|
|
2997 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
2998 | } |
|
|
2999 | |
|
|
3000 | static SV * ecb_cold |
|
|
3001 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
3002 | { |
|
|
3003 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
3004 | |
|
|
3005 | return newSVnv (self->every); |
|
|
3006 | } |
|
|
3007 | |
|
|
3008 | static IV |
|
|
3009 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
3010 | { |
|
|
3011 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
3012 | double now = nvtime (); |
|
|
3013 | |
|
|
3014 | if (now >= self->next) |
|
|
3015 | { |
|
|
3016 | api_cede (aTHX); |
|
|
3017 | self->next = now + self->every; |
|
|
3018 | } |
|
|
3019 | |
|
|
3020 | return PerlIOBuf_flush (aTHX_ f); |
|
|
3021 | } |
|
|
3022 | |
|
|
3023 | static PerlIO_funcs PerlIO_cede = |
|
|
3024 | { |
|
|
3025 | sizeof(PerlIO_funcs), |
|
|
3026 | "cede", |
|
|
3027 | sizeof(PerlIOCede), |
|
|
3028 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
3029 | PerlIOCede_pushed, |
|
|
3030 | PerlIOBuf_popped, |
|
|
3031 | PerlIOBuf_open, |
|
|
3032 | PerlIOBase_binmode, |
|
|
3033 | PerlIOCede_getarg, |
|
|
3034 | PerlIOBase_fileno, |
|
|
3035 | PerlIOBuf_dup, |
|
|
3036 | PerlIOBuf_read, |
|
|
3037 | PerlIOBuf_unread, |
|
|
3038 | PerlIOBuf_write, |
|
|
3039 | PerlIOBuf_seek, |
|
|
3040 | PerlIOBuf_tell, |
|
|
3041 | PerlIOBuf_close, |
|
|
3042 | PerlIOCede_flush, |
|
|
3043 | PerlIOBuf_fill, |
|
|
3044 | PerlIOBase_eof, |
|
|
3045 | PerlIOBase_error, |
|
|
3046 | PerlIOBase_clearerr, |
|
|
3047 | PerlIOBase_setlinebuf, |
|
|
3048 | PerlIOBuf_get_base, |
|
|
3049 | PerlIOBuf_bufsiz, |
|
|
3050 | PerlIOBuf_get_ptr, |
|
|
3051 | PerlIOBuf_get_cnt, |
|
|
3052 | PerlIOBuf_set_ptrcnt, |
|
|
3053 | }; |
|
|
3054 | |
|
|
3055 | /*****************************************************************************/ |
|
|
3056 | /* Coro::Semaphore & Coro::Signal */ |
|
|
3057 | |
|
|
3058 | static SV * |
|
|
3059 | coro_waitarray_new (pTHX_ int count) |
|
|
3060 | { |
|
|
3061 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
3062 | AV *av = newAV (); |
|
|
3063 | SV **ary; |
|
|
3064 | |
|
|
3065 | /* unfortunately, building manually saves memory */ |
|
|
3066 | Newx (ary, 2, SV *); |
|
|
3067 | AvALLOC (av) = ary; |
|
|
3068 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
3069 | AvARRAY (av) = ary; |
|
|
3070 | #else |
|
|
3071 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
3072 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
3073 | SvPVX ((SV *)av) = (char *)ary; |
|
|
3074 | #endif |
|
|
3075 | AvMAX (av) = 1; |
|
|
3076 | AvFILLp (av) = 0; |
|
|
3077 | ary [0] = newSViv (count); |
|
|
3078 | |
|
|
3079 | return newRV_noinc ((SV *)av); |
|
|
3080 | } |
|
|
3081 | |
|
|
3082 | /* semaphore */ |
|
|
3083 | |
|
|
3084 | static void |
|
|
3085 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
3086 | { |
|
|
3087 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3088 | IV count = SvIVX (count_sv); |
|
|
3089 | |
|
|
3090 | count += adjust; |
|
|
3091 | SvIVX (count_sv) = count; |
|
|
3092 | |
|
|
3093 | /* now wake up as many waiters as are expected to lock */ |
|
|
3094 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3095 | { |
|
|
3096 | SV *cb; |
|
|
3097 | |
|
|
3098 | /* swap first two elements so we can shift a waiter */ |
|
|
3099 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3100 | AvARRAY (av)[1] = count_sv; |
|
|
3101 | cb = av_shift (av); |
|
|
3102 | |
|
|
3103 | if (SvOBJECT (cb)) |
|
|
3104 | { |
|
|
3105 | api_ready (aTHX_ cb); |
|
|
3106 | --count; |
|
|
3107 | } |
|
|
3108 | else if (SvTYPE (cb) == SVt_PVCV) |
1036 | { |
3109 | { |
1037 | dSP; |
3110 | dSP; |
1038 | UNLOCK; |
|
|
1039 | |
|
|
1040 | ENTER; |
|
|
1041 | SAVETMPS; |
|
|
1042 | |
|
|
1043 | PUSHMARK (SP); |
3111 | PUSHMARK (SP); |
|
|
3112 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
1044 | PUTBACK; |
3113 | PUTBACK; |
1045 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
3114 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
1046 | |
|
|
1047 | FREETMPS; |
|
|
1048 | LEAVE; |
|
|
1049 | continue; |
|
|
1050 | } |
3115 | } |
1051 | |
3116 | |
1052 | ta->next = SvSTATE (next_sv); |
3117 | SvREFCNT_dec_NN (cb); |
|
|
3118 | } |
|
|
3119 | } |
1053 | |
3120 | |
1054 | /* cannot transfer to destroyed coros, skip and look for next */ |
3121 | static void |
1055 | if (ta->next->flags & CF_DESTROYED) |
3122 | coro_semaphore_destroy (pTHX_ struct CoroSLF *frame) |
|
|
3123 | { |
|
|
3124 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
3125 | coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0); |
|
|
3126 | } |
|
|
3127 | |
|
|
3128 | static int |
|
|
3129 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
3130 | { |
|
|
3131 | AV *av = (AV *)frame->data; |
|
|
3132 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3133 | SV *coro_hv = SvRV (coro_current); |
|
|
3134 | |
|
|
3135 | frame->destroy = 0; |
|
|
3136 | |
|
|
3137 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
3138 | if (ecb_expect_false (CORO_THROW)) |
|
|
3139 | { |
|
|
3140 | /* we still might be responsible for the semaphore, so wake up others */ |
|
|
3141 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3142 | |
|
|
3143 | return 0; |
|
|
3144 | } |
|
|
3145 | else if (SvIVX (count_sv) > 0) |
|
|
3146 | { |
|
|
3147 | if (acquire) |
|
|
3148 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
3149 | else |
|
|
3150 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3151 | |
|
|
3152 | return 0; |
|
|
3153 | } |
|
|
3154 | else |
|
|
3155 | { |
|
|
3156 | int i; |
|
|
3157 | /* if we were woken up but can't down, we look through the whole */ |
|
|
3158 | /* waiters list and only add us if we aren't in there already */ |
|
|
3159 | /* this avoids some degenerate memory usage cases */ |
|
|
3160 | for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */ |
|
|
3161 | if (AvARRAY (av)[i] == coro_hv) |
|
|
3162 | return 1; |
|
|
3163 | |
|
|
3164 | av_push (av, SvREFCNT_inc (coro_hv)); |
|
|
3165 | return 1; |
|
|
3166 | } |
|
|
3167 | } |
|
|
3168 | |
|
|
3169 | static int |
|
|
3170 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
3171 | { |
|
|
3172 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
3173 | } |
|
|
3174 | |
|
|
3175 | static int |
|
|
3176 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
3177 | { |
|
|
3178 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
3179 | } |
|
|
3180 | |
|
|
3181 | static void |
|
|
3182 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3183 | { |
|
|
3184 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3185 | |
|
|
3186 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3187 | { |
|
|
3188 | frame->data = (void *)av; |
|
|
3189 | frame->prepare = prepare_nop; |
|
|
3190 | } |
|
|
3191 | else |
|
|
3192 | { |
|
|
3193 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
3194 | |
|
|
3195 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
3196 | frame->prepare = prepare_schedule; |
|
|
3197 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
3198 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
3199 | frame->destroy = coro_semaphore_destroy; |
|
|
3200 | } |
|
|
3201 | } |
|
|
3202 | |
|
|
3203 | static void |
|
|
3204 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3205 | { |
|
|
3206 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3207 | frame->check = slf_check_semaphore_down; |
|
|
3208 | } |
|
|
3209 | |
|
|
3210 | static void |
|
|
3211 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3212 | { |
|
|
3213 | if (items >= 2) |
|
|
3214 | { |
|
|
3215 | /* callback form */ |
|
|
3216 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3217 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3218 | |
|
|
3219 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3220 | |
|
|
3221 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3222 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3223 | |
|
|
3224 | frame->prepare = prepare_nop; |
|
|
3225 | frame->check = slf_check_nop; |
|
|
3226 | } |
|
|
3227 | else |
|
|
3228 | { |
|
|
3229 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3230 | frame->check = slf_check_semaphore_wait; |
|
|
3231 | } |
|
|
3232 | } |
|
|
3233 | |
|
|
3234 | /* signal */ |
|
|
3235 | |
|
|
3236 | static void |
|
|
3237 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
3238 | { |
|
|
3239 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3240 | |
|
|
3241 | /* now signal count waiters */ |
|
|
3242 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3243 | { |
|
|
3244 | SV *cb; |
|
|
3245 | |
|
|
3246 | /* swap first two elements so we can shift a waiter */ |
|
|
3247 | cb = AvARRAY (av)[0]; |
|
|
3248 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3249 | AvARRAY (av)[1] = cb; |
|
|
3250 | |
|
|
3251 | cb = av_shift (av); |
|
|
3252 | |
|
|
3253 | if (SvTYPE (cb) == SVt_PVCV) |
1056 | { |
3254 | { |
|
|
3255 | dSP; |
|
|
3256 | PUSHMARK (SP); |
|
|
3257 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
1057 | UNLOCK; |
3258 | PUTBACK; |
1058 | SvREFCNT_dec (next_sv); |
3259 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
1059 | /* coro_nready is already taken care of by destroy */ |
|
|
1060 | continue; |
|
|
1061 | } |
3260 | } |
|
|
3261 | else |
|
|
3262 | { |
|
|
3263 | api_ready (aTHX_ cb); |
|
|
3264 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
3265 | } |
1062 | |
3266 | |
1063 | --coro_nready; |
3267 | SvREFCNT_dec_NN (cb); |
1064 | UNLOCK; |
|
|
1065 | break; |
|
|
1066 | } |
|
|
1067 | |
3268 | |
1068 | /* free this only after the transfer */ |
3269 | --count; |
1069 | prev_sv = SvRV (coro_current); |
3270 | } |
1070 | SvRV_set (coro_current, next_sv); |
|
|
1071 | ta->prev = SvSTATE (prev_sv); |
|
|
1072 | |
|
|
1073 | assert (ta->next->flags & CF_READY); |
|
|
1074 | ta->next->flags &= ~CF_READY; |
|
|
1075 | |
|
|
1076 | LOCK; |
|
|
1077 | free_coro_mortal (); |
|
|
1078 | coro_mortal = prev_sv; |
|
|
1079 | UNLOCK; |
|
|
1080 | } |
|
|
1081 | |
|
|
1082 | static void |
|
|
1083 | prepare_cede (struct transfer_args *ta) |
|
|
1084 | { |
|
|
1085 | api_ready (coro_current); |
|
|
1086 | prepare_schedule (ta); |
|
|
1087 | } |
3271 | } |
1088 | |
3272 | |
1089 | static int |
3273 | static int |
1090 | prepare_cede_notself (struct transfer_args *ta) |
3274 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
1091 | { |
3275 | { |
1092 | if (coro_nready) |
3276 | /* if we are about to throw, also stop waiting */ |
|
|
3277 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
3278 | } |
|
|
3279 | |
|
|
3280 | static void |
|
|
3281 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3282 | { |
|
|
3283 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3284 | |
|
|
3285 | if (items >= 2) |
|
|
3286 | { |
|
|
3287 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3288 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3289 | |
|
|
3290 | if (SvIVX (AvARRAY (av)[0])) |
|
|
3291 | coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */ |
|
|
3292 | |
|
|
3293 | frame->prepare = prepare_nop; |
|
|
3294 | frame->check = slf_check_nop; |
1093 | { |
3295 | } |
1094 | SV *prev = SvRV (coro_current); |
3296 | else if (SvIVX (AvARRAY (av)[0])) |
1095 | prepare_schedule (ta); |
3297 | { |
1096 | api_ready (prev); |
3298 | SvIVX (AvARRAY (av)[0]) = 0; |
1097 | return 1; |
3299 | frame->prepare = prepare_nop; |
|
|
3300 | frame->check = slf_check_nop; |
1098 | } |
3301 | } |
1099 | else |
3302 | else |
|
|
3303 | { |
|
|
3304 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
3305 | |
|
|
3306 | av_push (av, waiter); |
|
|
3307 | |
|
|
3308 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
3309 | frame->prepare = prepare_schedule; |
|
|
3310 | frame->check = slf_check_signal_wait; |
|
|
3311 | } |
|
|
3312 | } |
|
|
3313 | |
|
|
3314 | /*****************************************************************************/ |
|
|
3315 | /* Coro::AIO */ |
|
|
3316 | |
|
|
3317 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
3318 | |
|
|
3319 | /* helper storage struct */ |
|
|
3320 | struct io_state |
|
|
3321 | { |
|
|
3322 | int errorno; |
|
|
3323 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
3324 | int laststatval; |
|
|
3325 | Stat_t statcache; |
|
|
3326 | }; |
|
|
3327 | |
|
|
3328 | static void |
|
|
3329 | coro_aio_callback (pTHX_ CV *cv) |
|
|
3330 | { |
|
|
3331 | dXSARGS; |
|
|
3332 | AV *state = (AV *)S_GENSUB_ARG; |
|
|
3333 | SV *coro = av_pop (state); |
|
|
3334 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
3335 | |
|
|
3336 | av_extend (state, items - 1); |
|
|
3337 | |
|
|
3338 | sv_upgrade (data_sv, SVt_PV); |
|
|
3339 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
3340 | SvPOK_only (data_sv); |
|
|
3341 | |
|
|
3342 | { |
|
|
3343 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3344 | |
|
|
3345 | data->errorno = errno; |
|
|
3346 | data->laststype = PL_laststype; |
|
|
3347 | data->laststatval = PL_laststatval; |
|
|
3348 | data->statcache = PL_statcache; |
|
|
3349 | } |
|
|
3350 | |
|
|
3351 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
3352 | { |
|
|
3353 | int i; |
|
|
3354 | |
|
|
3355 | for (i = 0; i < items; ++i) |
|
|
3356 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
3357 | } |
|
|
3358 | |
|
|
3359 | av_push (state, data_sv); |
|
|
3360 | |
|
|
3361 | api_ready (aTHX_ coro); |
|
|
3362 | SvREFCNT_dec_NN (coro); |
|
|
3363 | SvREFCNT_dec_NN ((AV *)state); |
|
|
3364 | } |
|
|
3365 | |
|
|
3366 | static int |
|
|
3367 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
3368 | { |
|
|
3369 | AV *state = (AV *)frame->data; |
|
|
3370 | |
|
|
3371 | /* if we are about to throw, return early */ |
|
|
3372 | /* this does not cancel the aio request, but at least */ |
|
|
3373 | /* it quickly returns */ |
|
|
3374 | if (CORO_THROW) |
1100 | return 0; |
3375 | return 0; |
1101 | } |
|
|
1102 | |
3376 | |
1103 | static void |
3377 | /* one element that is an RV? repeat! */ |
1104 | api_schedule (void) |
3378 | if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV) |
1105 | { |
|
|
1106 | struct transfer_args ta; |
|
|
1107 | |
|
|
1108 | prepare_schedule (&ta); |
|
|
1109 | TRANSFER (ta); |
|
|
1110 | } |
|
|
1111 | |
|
|
1112 | static int |
|
|
1113 | api_cede (void) |
|
|
1114 | { |
|
|
1115 | struct transfer_args ta; |
|
|
1116 | |
|
|
1117 | prepare_cede (&ta); |
|
|
1118 | |
|
|
1119 | if (ta.prev != ta.next) |
|
|
1120 | { |
|
|
1121 | TRANSFER (ta); |
|
|
1122 | return 1; |
3379 | return 1; |
|
|
3380 | |
|
|
3381 | /* restore status */ |
|
|
3382 | { |
|
|
3383 | SV *data_sv = av_pop (state); |
|
|
3384 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3385 | |
|
|
3386 | errno = data->errorno; |
|
|
3387 | PL_laststype = data->laststype; |
|
|
3388 | PL_laststatval = data->laststatval; |
|
|
3389 | PL_statcache = data->statcache; |
|
|
3390 | |
|
|
3391 | SvREFCNT_dec_NN (data_sv); |
1123 | } |
3392 | } |
1124 | else |
3393 | |
|
|
3394 | /* push result values */ |
|
|
3395 | { |
|
|
3396 | dSP; |
|
|
3397 | int i; |
|
|
3398 | |
|
|
3399 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
3400 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
3401 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
3402 | |
|
|
3403 | PUTBACK; |
|
|
3404 | } |
|
|
3405 | |
1125 | return 0; |
3406 | return 0; |
1126 | } |
3407 | } |
1127 | |
3408 | |
1128 | static int |
3409 | static void |
1129 | api_cede_notself (void) |
3410 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1130 | { |
3411 | { |
1131 | struct transfer_args ta; |
3412 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
3413 | SV *coro_hv = SvRV (coro_current); |
|
|
3414 | struct coro *coro = SvSTATE_hv (coro_hv); |
1132 | |
3415 | |
1133 | if (prepare_cede_notself (&ta)) |
3416 | /* put our coroutine id on the state arg */ |
1134 | { |
3417 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
1135 | TRANSFER (ta); |
3418 | |
1136 | return 1; |
3419 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
3420 | if (coro->prio) |
1137 | } |
3421 | { |
1138 | else |
3422 | dSP; |
1139 | return 0; |
|
|
1140 | } |
|
|
1141 | |
3423 | |
|
|
3424 | static SV *prio_cv; |
|
|
3425 | static SV *prio_sv; |
|
|
3426 | |
|
|
3427 | if (ecb_expect_false (!prio_cv)) |
|
|
3428 | { |
|
|
3429 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
3430 | prio_sv = newSViv (0); |
|
|
3431 | } |
|
|
3432 | |
|
|
3433 | PUSHMARK (SP); |
|
|
3434 | sv_setiv (prio_sv, coro->prio); |
|
|
3435 | XPUSHs (prio_sv); |
|
|
3436 | |
|
|
3437 | PUTBACK; |
|
|
3438 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
3439 | } |
|
|
3440 | |
|
|
3441 | /* now call the original request */ |
|
|
3442 | { |
|
|
3443 | dSP; |
|
|
3444 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
3445 | int i; |
|
|
3446 | |
|
|
3447 | PUSHMARK (SP); |
|
|
3448 | |
|
|
3449 | /* first push all args to the stack */ |
|
|
3450 | EXTEND (SP, items + 1); |
|
|
3451 | |
|
|
3452 | for (i = 0; i < items; ++i) |
|
|
3453 | PUSHs (arg [i]); |
|
|
3454 | |
|
|
3455 | /* now push the callback closure */ |
|
|
3456 | PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
3457 | |
|
|
3458 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
3459 | PUTBACK; |
|
|
3460 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
3461 | } |
|
|
3462 | |
|
|
3463 | /* now that the request is going, we loop till we have a result */ |
|
|
3464 | frame->data = (void *)state; |
|
|
3465 | frame->prepare = prepare_schedule; |
|
|
3466 | frame->check = slf_check_aio_req; |
|
|
3467 | } |
|
|
3468 | |
|
|
3469 | static void |
|
|
3470 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
3471 | { |
|
|
3472 | dXSARGS; |
|
|
3473 | |
|
|
3474 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
3475 | |
|
|
3476 | XSRETURN_EMPTY; |
|
|
3477 | } |
|
|
3478 | |
|
|
3479 | /*****************************************************************************/ |
|
|
3480 | |
|
|
3481 | #if CORO_CLONE |
|
|
3482 | # include "clone.c" |
|
|
3483 | #endif |
|
|
3484 | |
|
|
3485 | /*****************************************************************************/ |
|
|
3486 | |
|
|
3487 | static SV * |
|
|
3488 | coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro) |
|
|
3489 | { |
|
|
3490 | SV *coro_sv; |
|
|
3491 | struct coro *coro; |
|
|
3492 | MAGIC *mg; |
|
|
3493 | HV *hv; |
|
|
3494 | SV *cb; |
|
|
3495 | int i; |
|
|
3496 | |
|
|
3497 | if (argc > 0) |
|
|
3498 | { |
|
|
3499 | cb = s_get_cv_croak (argv [0]); |
|
|
3500 | |
|
|
3501 | if (!is_coro) |
|
|
3502 | { |
|
|
3503 | if (CvISXSUB (cb)) |
|
|
3504 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
3505 | |
|
|
3506 | if (!CvROOT (cb)) |
|
|
3507 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3508 | } |
|
|
3509 | } |
|
|
3510 | |
|
|
3511 | Newz (0, coro, 1, struct coro); |
|
|
3512 | coro->args = newAV (); |
|
|
3513 | coro->flags = CF_NEW; |
|
|
3514 | |
|
|
3515 | if (coro_first) coro_first->prev = coro; |
|
|
3516 | coro->next = coro_first; |
|
|
3517 | coro_first = coro; |
|
|
3518 | |
|
|
3519 | coro->hv = hv = newHV (); |
|
|
3520 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
3521 | mg->mg_flags |= MGf_DUP; |
|
|
3522 | coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash); |
|
|
3523 | |
|
|
3524 | if (argc > 0) |
|
|
3525 | { |
|
|
3526 | av_extend (coro->args, argc + is_coro - 1); |
|
|
3527 | |
|
|
3528 | if (is_coro) |
|
|
3529 | { |
|
|
3530 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3531 | cb = (SV *)cv_coro_run; |
|
|
3532 | } |
|
|
3533 | |
|
|
3534 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3535 | |
|
|
3536 | for (i = 1; i < argc; i++) |
|
|
3537 | av_push (coro->args, newSVsv (argv [i])); |
|
|
3538 | } |
|
|
3539 | |
|
|
3540 | return coro_sv; |
|
|
3541 | } |
|
|
3542 | |
|
|
3543 | #ifndef __cplusplus |
|
|
3544 | ecb_cold XS(boot_Coro__State); |
|
|
3545 | #endif |
|
|
3546 | |
|
|
3547 | #if CORO_JIT |
|
|
3548 | |
|
|
3549 | static void ecb_noinline ecb_cold |
|
|
3550 | pushav_4uv (pTHX_ UV a, UV b, UV c, UV d) |
|
|
3551 | { |
|
|
3552 | dSP; |
|
|
3553 | AV *av = newAV (); |
|
|
3554 | |
|
|
3555 | av_store (av, 3, newSVuv (d)); |
|
|
3556 | av_store (av, 2, newSVuv (c)); |
|
|
3557 | av_store (av, 1, newSVuv (b)); |
|
|
3558 | av_store (av, 0, newSVuv (a)); |
|
|
3559 | |
|
|
3560 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
3561 | |
|
|
3562 | PUTBACK; |
|
|
3563 | } |
|
|
3564 | |
|
|
3565 | static void ecb_noinline ecb_cold |
|
|
3566 | jit_init (pTHX) |
|
|
3567 | { |
|
|
3568 | dSP; |
|
|
3569 | SV *load, *save; |
|
|
3570 | char *map_base; |
|
|
3571 | char *load_ptr, *save_ptr; |
|
|
3572 | STRLEN load_len, save_len, map_len; |
|
|
3573 | int count; |
|
|
3574 | |
|
|
3575 | eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1); |
|
|
3576 | |
|
|
3577 | PUSHMARK (SP); |
|
|
3578 | #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type)); |
|
|
3579 | #include "state.h" |
|
|
3580 | count = call_pv ("Coro::State::_jit", G_ARRAY); |
|
|
3581 | SPAGAIN; |
|
|
3582 | |
|
|
3583 | save = POPs; save_ptr = SvPVbyte (save, save_len); |
|
|
3584 | load = POPs; load_ptr = SvPVbyte (load, load_len); |
|
|
3585 | |
|
|
3586 | map_len = load_len + save_len + 16; |
|
|
3587 | |
|
|
3588 | map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
|
|
3589 | |
|
|
3590 | if (map_base == (char *)MAP_FAILED) |
|
|
3591 | map_base = mmap (0, map_len, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
|
|
3592 | |
|
|
3593 | assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED)); |
|
|
3594 | |
|
|
3595 | load_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3596 | memcpy (map_base, load_ptr, load_len); |
|
|
3597 | |
|
|
3598 | map_base += (load_len + 15) & ~15; |
|
|
3599 | |
|
|
3600 | save_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3601 | memcpy (map_base, save_ptr, save_len); |
|
|
3602 | |
|
|
3603 | /* we are good citizens and try to make the page read-only, so the evil evil */ |
|
|
3604 | /* hackers might have it a bit more difficult */ |
|
|
3605 | mprotect (map_base, map_len, PROT_READ | PROT_EXEC); |
|
|
3606 | |
|
|
3607 | PUTBACK; |
|
|
3608 | eval_pv ("undef &Coro::State::_jit", 1); |
|
|
3609 | } |
|
|
3610 | |
|
|
3611 | #endif |
|
|
3612 | |
1142 | MODULE = Coro::State PACKAGE = Coro::State |
3613 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1143 | |
3614 | |
1144 | PROTOTYPES: DISABLE |
3615 | PROTOTYPES: DISABLE |
1145 | |
3616 | |
1146 | BOOT: |
3617 | BOOT: |
1147 | { |
3618 | { |
|
|
3619 | #define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl."); |
|
|
3620 | #include "state.h" |
1148 | #ifdef USE_ITHREADS |
3621 | #ifdef USE_ITHREADS |
1149 | MUTEX_INIT (&coro_mutex); |
3622 | # if CORO_PTHREAD |
|
|
3623 | coro_thx = PERL_GET_CONTEXT; |
1150 | #endif |
3624 | # endif |
1151 | BOOT_PAGESIZE; |
3625 | #endif |
|
|
3626 | /* perl defines these to check for existance first, but why it doesn't */ |
|
|
3627 | /* just create them one at init time is not clear to me, except for */ |
|
|
3628 | /* programs trying to delete them, but... */ |
|
|
3629 | /* anyway, we declare this as invalid and make sure they are initialised here */ |
|
|
3630 | DEFSV; |
|
|
3631 | ERRSV; |
|
|
3632 | |
|
|
3633 | cctx_current = cctx_new_empty (); |
|
|
3634 | |
|
|
3635 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
3636 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
3637 | |
|
|
3638 | { |
|
|
3639 | /* |
|
|
3640 | * we provide a vtbvl for %SIG magic that replaces PL_vtbl_sig |
|
|
3641 | * by coro_sig_vtbl in hash values. |
|
|
3642 | */ |
|
|
3643 | MAGIC *mg = mg_find ((SV *)GvHV (gv_fetchpv ("SIG", GV_ADD | GV_NOTQUAL, SVt_PVHV)), PERL_MAGIC_sig); |
|
|
3644 | |
|
|
3645 | /* this only works if perl doesn't have a vtbl for %SIG */ |
|
|
3646 | assert (!mg->mg_virtual); |
|
|
3647 | |
|
|
3648 | /* |
|
|
3649 | * The irony is that the perl API itself asserts that mg_virtual |
|
|
3650 | * must be non-const, yet perl5porters insisted on marking their |
|
|
3651 | * vtbls as read-only, just to thwart perl modules from patching |
|
|
3652 | * them. |
|
|
3653 | */ |
|
|
3654 | mg->mg_virtual = (MGVTBL *)&coro_sig_vtbl; |
|
|
3655 | mg->mg_flags |= MGf_COPY; |
|
|
3656 | |
|
|
3657 | coro_sigelem_vtbl = PL_vtbl_sigelem; |
|
|
3658 | coro_sigelem_vtbl.svt_get = coro_sigelem_get; |
|
|
3659 | coro_sigelem_vtbl.svt_set = coro_sigelem_set; |
|
|
3660 | coro_sigelem_vtbl.svt_clear = coro_sigelem_clr; |
|
|
3661 | } |
|
|
3662 | |
|
|
3663 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
3664 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1152 | |
3665 | |
1153 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
3666 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1154 | |
3667 | |
|
|
3668 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
|
|
3669 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1155 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
3670 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
1156 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
|
|
1157 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1158 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1159 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
3671 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1160 | |
3672 | |
1161 | main_mainstack = PL_mainstack; |
3673 | main_mainstack = PL_mainstack; |
|
|
3674 | main_top_env = PL_top_env; |
1162 | |
3675 | |
|
|
3676 | while (main_top_env->je_prev) |
|
|
3677 | main_top_env = main_top_env->je_prev; |
|
|
3678 | |
|
|
3679 | { |
|
|
3680 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
3681 | |
|
|
3682 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
3683 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
3684 | |
|
|
3685 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
3686 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
3687 | } |
|
|
3688 | |
1163 | coroapi.ver = CORO_API_VERSION; |
3689 | coroapi.ver = CORO_API_VERSION; |
|
|
3690 | coroapi.rev = CORO_API_REVISION; |
|
|
3691 | |
1164 | coroapi.transfer = api_transfer; |
3692 | coroapi.transfer = api_transfer; |
1165 | |
3693 | |
|
|
3694 | coroapi.sv_state = SvSTATE_; |
|
|
3695 | coroapi.execute_slf = api_execute_slf; |
|
|
3696 | coroapi.prepare_nop = prepare_nop; |
|
|
3697 | coroapi.prepare_schedule = prepare_schedule; |
|
|
3698 | coroapi.prepare_cede = prepare_cede; |
|
|
3699 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
3700 | |
|
|
3701 | time_init (aTHX); |
|
|
3702 | |
1166 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
3703 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
|
|
3704 | #if CORO_JIT |
|
|
3705 | PUTBACK; |
|
|
3706 | jit_init (aTHX); |
|
|
3707 | SPAGAIN; |
|
|
3708 | #endif |
1167 | } |
3709 | } |
1168 | |
3710 | |
1169 | SV * |
3711 | SV * |
1170 | new (char *klass, ...) |
3712 | new (SV *klass, ...) |
|
|
3713 | ALIAS: |
|
|
3714 | Coro::new = 1 |
1171 | CODE: |
3715 | CODE: |
1172 | { |
3716 | RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix); |
1173 | struct coro *coro; |
|
|
1174 | HV *hv; |
|
|
1175 | int i; |
|
|
1176 | |
|
|
1177 | Newz (0, coro, 1, struct coro); |
|
|
1178 | coro->args = newAV (); |
|
|
1179 | coro->save = CORO_SAVE_ALL; |
|
|
1180 | coro->flags = CF_NEW; |
|
|
1181 | |
|
|
1182 | hv = newHV (); |
|
|
1183 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
|
|
1184 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
1185 | |
|
|
1186 | for (i = 1; i < items; i++) |
|
|
1187 | av_push (coro->args, newSVsv (ST (i))); |
|
|
1188 | } |
|
|
1189 | OUTPUT: |
|
|
1190 | RETVAL |
|
|
1191 | |
|
|
1192 | int |
|
|
1193 | save (SV *coro, int new_save = -1) |
|
|
1194 | CODE: |
|
|
1195 | RETVAL = api_save (coro, new_save); |
|
|
1196 | OUTPUT: |
3717 | OUTPUT: |
1197 | RETVAL |
3718 | RETVAL |
1198 | |
3719 | |
1199 | void |
3720 | void |
1200 | _set_stacklevel (...) |
3721 | transfer (...) |
1201 | ALIAS: |
3722 | PROTOTYPE: $$ |
1202 | Coro::State::transfer = 1 |
|
|
1203 | Coro::schedule = 2 |
|
|
1204 | Coro::cede = 3 |
|
|
1205 | Coro::cede_notself = 4 |
|
|
1206 | CODE: |
|
|
1207 | { |
|
|
1208 | struct transfer_args ta; |
|
|
1209 | |
|
|
1210 | switch (ix) |
|
|
1211 | { |
|
|
1212 | case 0: |
|
|
1213 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1214 | ta.next = 0; |
|
|
1215 | break; |
|
|
1216 | |
|
|
1217 | case 1: |
|
|
1218 | if (items != 2) |
|
|
1219 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1220 | |
|
|
1221 | prepare_transfer (&ta, ST (0), ST (1)); |
|
|
1222 | break; |
|
|
1223 | |
|
|
1224 | case 2: |
|
|
1225 | prepare_schedule (&ta); |
|
|
1226 | break; |
|
|
1227 | |
|
|
1228 | case 3: |
|
|
1229 | prepare_cede (&ta); |
|
|
1230 | break; |
|
|
1231 | |
|
|
1232 | case 4: |
|
|
1233 | if (!prepare_cede_notself (&ta)) |
|
|
1234 | XSRETURN_EMPTY; |
|
|
1235 | |
|
|
1236 | break; |
|
|
1237 | } |
|
|
1238 | |
|
|
1239 | BARRIER; |
|
|
1240 | TRANSFER (ta); |
|
|
1241 | |
|
|
1242 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
|
|
1243 | XSRETURN_YES; |
|
|
1244 | } |
|
|
1245 | |
|
|
1246 | bool |
|
|
1247 | _destroy (SV *coro_sv) |
|
|
1248 | CODE: |
3723 | CODE: |
1249 | RETVAL = coro_state_destroy (SvSTATE (coro_sv)); |
3724 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
|
|
3725 | |
|
|
3726 | SV * |
|
|
3727 | clone (Coro::State coro) |
|
|
3728 | CODE: |
|
|
3729 | { |
|
|
3730 | #if CORO_CLONE |
|
|
3731 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3732 | MAGIC *mg; |
|
|
3733 | /* TODO: too much duplication */ |
|
|
3734 | ncoro->hv = newHV (); |
|
|
3735 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3736 | mg->mg_flags |= MGf_DUP; |
|
|
3737 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3738 | #else |
|
|
3739 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3740 | #endif |
|
|
3741 | } |
1250 | OUTPUT: |
3742 | OUTPUT: |
1251 | RETVAL |
3743 | RETVAL |
1252 | |
3744 | |
1253 | void |
3745 | int |
1254 | _exit (code) |
3746 | cctx_stacksize (int new_stacksize = 0) |
1255 | int code |
3747 | PROTOTYPE: ;$ |
1256 | PROTOTYPE: $ |
|
|
1257 | CODE: |
3748 | CODE: |
1258 | _exit (code); |
3749 | RETVAL = cctx_stacksize; |
|
|
3750 | if (new_stacksize) |
|
|
3751 | { |
|
|
3752 | cctx_stacksize = new_stacksize; |
|
|
3753 | ++cctx_gen; |
|
|
3754 | } |
|
|
3755 | OUTPUT: |
|
|
3756 | RETVAL |
|
|
3757 | |
|
|
3758 | int |
|
|
3759 | cctx_max_idle (int max_idle = 0) |
|
|
3760 | PROTOTYPE: ;$ |
|
|
3761 | CODE: |
|
|
3762 | RETVAL = cctx_max_idle; |
|
|
3763 | if (max_idle > 1) |
|
|
3764 | cctx_max_idle = max_idle; |
|
|
3765 | OUTPUT: |
|
|
3766 | RETVAL |
1259 | |
3767 | |
1260 | int |
3768 | int |
1261 | cctx_count () |
3769 | cctx_count () |
|
|
3770 | PROTOTYPE: |
1262 | CODE: |
3771 | CODE: |
1263 | RETVAL = cctx_count; |
3772 | RETVAL = cctx_count; |
1264 | OUTPUT: |
3773 | OUTPUT: |
1265 | RETVAL |
3774 | RETVAL |
1266 | |
3775 | |
1267 | int |
3776 | int |
1268 | cctx_idle () |
3777 | cctx_idle () |
|
|
3778 | PROTOTYPE: |
1269 | CODE: |
3779 | CODE: |
1270 | RETVAL = cctx_idle; |
3780 | RETVAL = cctx_idle; |
1271 | OUTPUT: |
3781 | OUTPUT: |
1272 | RETVAL |
3782 | RETVAL |
1273 | |
3783 | |
|
|
3784 | void |
|
|
3785 | list () |
|
|
3786 | PROTOTYPE: |
|
|
3787 | PPCODE: |
|
|
3788 | { |
|
|
3789 | struct coro *coro; |
|
|
3790 | for (coro = coro_first; coro; coro = coro->next) |
|
|
3791 | if (coro->hv) |
|
|
3792 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
3793 | } |
|
|
3794 | |
|
|
3795 | void |
|
|
3796 | call (Coro::State coro, SV *coderef) |
|
|
3797 | ALIAS: |
|
|
3798 | eval = 1 |
|
|
3799 | CODE: |
|
|
3800 | { |
|
|
3801 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
|
|
3802 | { |
|
|
3803 | struct coro *current = SvSTATE_current; |
|
|
3804 | struct CoroSLF slf_save; |
|
|
3805 | |
|
|
3806 | if (current != coro) |
|
|
3807 | { |
|
|
3808 | PUTBACK; |
|
|
3809 | save_perl (aTHX_ current); |
|
|
3810 | load_perl (aTHX_ coro); |
|
|
3811 | /* the coro is most likely in an active SLF call. |
|
|
3812 | * while not strictly required (the code we execute is |
|
|
3813 | * not allowed to call any SLF functions), it's cleaner |
|
|
3814 | * to reinitialise the slf_frame and restore it later. |
|
|
3815 | * This might one day allow us to actually do SLF calls |
|
|
3816 | * from code executed here. |
|
|
3817 | */ |
|
|
3818 | slf_save = slf_frame; |
|
|
3819 | slf_frame.prepare = 0; |
|
|
3820 | SPAGAIN; |
|
|
3821 | } |
|
|
3822 | |
|
|
3823 | PUSHSTACK; |
|
|
3824 | |
|
|
3825 | PUSHMARK (SP); |
|
|
3826 | PUTBACK; |
|
|
3827 | |
|
|
3828 | if (ix) |
|
|
3829 | eval_sv (coderef, 0); |
|
|
3830 | else |
|
|
3831 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3832 | |
|
|
3833 | POPSTACK; |
|
|
3834 | SPAGAIN; |
|
|
3835 | |
|
|
3836 | if (current != coro) |
|
|
3837 | { |
|
|
3838 | PUTBACK; |
|
|
3839 | slf_frame = slf_save; |
|
|
3840 | save_perl (aTHX_ coro); |
|
|
3841 | load_perl (aTHX_ current); |
|
|
3842 | SPAGAIN; |
|
|
3843 | } |
|
|
3844 | } |
|
|
3845 | } |
|
|
3846 | |
|
|
3847 | SV * |
|
|
3848 | is_ready (Coro::State coro) |
|
|
3849 | PROTOTYPE: $ |
|
|
3850 | ALIAS: |
|
|
3851 | is_ready = CF_READY |
|
|
3852 | is_running = CF_RUNNING |
|
|
3853 | is_new = CF_NEW |
|
|
3854 | is_destroyed = CF_ZOMBIE |
|
|
3855 | is_zombie = CF_ZOMBIE |
|
|
3856 | is_suspended = CF_SUSPENDED |
|
|
3857 | CODE: |
|
|
3858 | RETVAL = boolSV (coro->flags & ix); |
|
|
3859 | OUTPUT: |
|
|
3860 | RETVAL |
|
|
3861 | |
|
|
3862 | void |
|
|
3863 | throw (SV *self, SV *exception = &PL_sv_undef) |
|
|
3864 | PROTOTYPE: $;$ |
|
|
3865 | CODE: |
|
|
3866 | { |
|
|
3867 | struct coro *coro = SvSTATE (self); |
|
|
3868 | struct coro *current = SvSTATE_current; |
|
|
3869 | SV **exceptionp = coro == current ? &CORO_THROW : &coro->except; |
|
|
3870 | SvREFCNT_dec (*exceptionp); |
|
|
3871 | SvGETMAGIC (exception); |
|
|
3872 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
|
|
3873 | |
|
|
3874 | api_ready (aTHX_ self); |
|
|
3875 | } |
|
|
3876 | |
|
|
3877 | void |
|
|
3878 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3879 | PROTOTYPE: $;$ |
|
|
3880 | C_ARGS: aTHX_ coro, flags |
|
|
3881 | |
|
|
3882 | SV * |
|
|
3883 | has_cctx (Coro::State coro) |
|
|
3884 | PROTOTYPE: $ |
|
|
3885 | CODE: |
|
|
3886 | /* maybe manage the running flag differently */ |
|
|
3887 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
|
|
3888 | OUTPUT: |
|
|
3889 | RETVAL |
|
|
3890 | |
|
|
3891 | int |
|
|
3892 | is_traced (Coro::State coro) |
|
|
3893 | PROTOTYPE: $ |
|
|
3894 | CODE: |
|
|
3895 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
3896 | OUTPUT: |
|
|
3897 | RETVAL |
|
|
3898 | |
|
|
3899 | UV |
|
|
3900 | rss (Coro::State coro) |
|
|
3901 | PROTOTYPE: $ |
|
|
3902 | ALIAS: |
|
|
3903 | usecount = 1 |
|
|
3904 | CODE: |
|
|
3905 | switch (ix) |
|
|
3906 | { |
|
|
3907 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
3908 | case 1: RETVAL = coro->usecount; break; |
|
|
3909 | } |
|
|
3910 | OUTPUT: |
|
|
3911 | RETVAL |
|
|
3912 | |
|
|
3913 | void |
|
|
3914 | force_cctx () |
|
|
3915 | PROTOTYPE: |
|
|
3916 | CODE: |
|
|
3917 | cctx_current->idle_sp = 0; |
|
|
3918 | |
|
|
3919 | void |
|
|
3920 | swap_defsv (Coro::State self) |
|
|
3921 | PROTOTYPE: $ |
|
|
3922 | ALIAS: |
|
|
3923 | swap_defav = 1 |
|
|
3924 | CODE: |
|
|
3925 | if (!self->slot) |
|
|
3926 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
3927 | else |
|
|
3928 | { |
|
|
3929 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
3930 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
3931 | |
|
|
3932 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
3933 | } |
|
|
3934 | |
|
|
3935 | void |
|
|
3936 | cancel (Coro::State self) |
|
|
3937 | CODE: |
|
|
3938 | coro_state_destroy (aTHX_ self); |
|
|
3939 | |
|
|
3940 | SV * |
|
|
3941 | enable_times (int enabled = enable_times) |
|
|
3942 | CODE: |
|
|
3943 | { |
|
|
3944 | RETVAL = boolSV (enable_times); |
|
|
3945 | |
|
|
3946 | if (enabled != enable_times) |
|
|
3947 | { |
|
|
3948 | enable_times = enabled; |
|
|
3949 | |
|
|
3950 | coro_times_update (); |
|
|
3951 | (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current)); |
|
|
3952 | } |
|
|
3953 | } |
|
|
3954 | OUTPUT: |
|
|
3955 | RETVAL |
|
|
3956 | |
|
|
3957 | void |
|
|
3958 | times (Coro::State self) |
|
|
3959 | PPCODE: |
|
|
3960 | { |
|
|
3961 | struct coro *current = SvSTATE (coro_current); |
|
|
3962 | |
|
|
3963 | if (ecb_expect_false (current == self)) |
|
|
3964 | { |
|
|
3965 | coro_times_update (); |
|
|
3966 | coro_times_add (SvSTATE (coro_current)); |
|
|
3967 | } |
|
|
3968 | |
|
|
3969 | EXTEND (SP, 2); |
|
|
3970 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
|
|
3971 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
|
|
3972 | |
|
|
3973 | if (ecb_expect_false (current == self)) |
|
|
3974 | coro_times_sub (SvSTATE (coro_current)); |
|
|
3975 | } |
|
|
3976 | |
|
|
3977 | void |
|
|
3978 | swap_sv (Coro::State coro, SV *sva, SV *svb) |
|
|
3979 | CODE: |
|
|
3980 | { |
|
|
3981 | struct coro *current = SvSTATE_current; |
|
|
3982 | AV *swap_sv; |
|
|
3983 | int i; |
|
|
3984 | |
|
|
3985 | sva = SvRV (sva); |
|
|
3986 | svb = SvRV (svb); |
|
|
3987 | |
|
|
3988 | if (current == coro) |
|
|
3989 | SWAP_SVS_LEAVE (current); |
|
|
3990 | |
|
|
3991 | if (!coro->swap_sv) |
|
|
3992 | coro->swap_sv = newAV (); |
|
|
3993 | |
|
|
3994 | swap_sv = coro->swap_sv; |
|
|
3995 | |
|
|
3996 | for (i = AvFILLp (swap_sv) - 1; i >= 0; i -= 2) |
|
|
3997 | { |
|
|
3998 | SV *a = AvARRAY (swap_sv)[i ]; |
|
|
3999 | SV *b = AvARRAY (swap_sv)[i + 1]; |
|
|
4000 | |
|
|
4001 | if (a == sva && b == svb) |
|
|
4002 | { |
|
|
4003 | SvREFCNT_dec_NN (a); |
|
|
4004 | SvREFCNT_dec_NN (b); |
|
|
4005 | |
|
|
4006 | for (; i <= AvFILLp (swap_sv) - 2; i++) |
|
|
4007 | AvARRAY (swap_sv)[i] = AvARRAY (swap_sv)[i + 2]; |
|
|
4008 | |
|
|
4009 | AvFILLp (swap_sv) -= 2; |
|
|
4010 | |
|
|
4011 | goto removed; |
|
|
4012 | } |
|
|
4013 | } |
|
|
4014 | |
|
|
4015 | av_push (swap_sv, SvREFCNT_inc_NN (sva)); |
|
|
4016 | av_push (swap_sv, SvREFCNT_inc_NN (svb)); |
|
|
4017 | |
|
|
4018 | removed: |
|
|
4019 | |
|
|
4020 | if (current == coro) |
|
|
4021 | SWAP_SVS_ENTER (current); |
|
|
4022 | } |
|
|
4023 | |
|
|
4024 | |
1274 | MODULE = Coro::State PACKAGE = Coro |
4025 | MODULE = Coro::State PACKAGE = Coro |
1275 | |
4026 | |
1276 | BOOT: |
4027 | BOOT: |
1277 | { |
4028 | { |
1278 | int i; |
4029 | if (SVt_LAST > 32) |
|
|
4030 | croak ("Coro internal error: SVt_LAST > 32, swap_sv might need adjustment"); |
1279 | |
4031 | |
|
|
4032 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
4033 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
4034 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
|
|
4035 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
|
|
4036 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
4037 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
4038 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
4039 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
|
|
4040 | |
|
|
4041 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
4042 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
4043 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
4044 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
|
|
4045 | |
1280 | coro_stash = gv_stashpv ("Coro", TRUE); |
4046 | coro_stash = gv_stashpv ("Coro", TRUE); |
1281 | |
4047 | |
1282 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
4048 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
1283 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
4049 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
1284 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
4050 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
1285 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
4051 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
1286 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
4052 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
1287 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
4053 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
1288 | |
|
|
1289 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1290 | SvREADONLY_on (coro_current); |
|
|
1291 | |
|
|
1292 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
1293 | coro_ready[i] = newAV (); |
|
|
1294 | |
4054 | |
1295 | { |
4055 | { |
1296 | SV *sv = perl_get_sv("Coro::API", 1); |
4056 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1297 | |
4057 | |
1298 | coroapi.schedule = api_schedule; |
4058 | coroapi.schedule = api_schedule; |
1299 | coroapi.save = api_save; |
4059 | coroapi.schedule_to = api_schedule_to; |
1300 | coroapi.cede = api_cede; |
4060 | coroapi.cede = api_cede; |
1301 | coroapi.cede_notself = api_cede_notself; |
4061 | coroapi.cede_notself = api_cede_notself; |
1302 | coroapi.ready = api_ready; |
4062 | coroapi.ready = api_ready; |
1303 | coroapi.is_ready = api_is_ready; |
4063 | coroapi.is_ready = api_is_ready; |
1304 | coroapi.nready = &coro_nready; |
4064 | coroapi.nready = coro_nready; |
1305 | coroapi.current = coro_current; |
4065 | coroapi.current = coro_current; |
1306 | |
4066 | |
|
|
4067 | coroapi.enterleave_hook = api_enterleave_hook; |
|
|
4068 | coroapi.enterleave_unhook = api_enterleave_unhook; |
|
|
4069 | coroapi.enterleave_scope_hook = api_enterleave_scope_hook; |
|
|
4070 | |
1307 | GCoroAPI = &coroapi; |
4071 | /*GCoroAPI = &coroapi;*/ |
1308 | sv_setiv (sv, (IV)&coroapi); |
4072 | sv_setiv (sv, (IV)&coroapi); |
1309 | SvREADONLY_on (sv); |
4073 | SvREADONLY_on (sv); |
1310 | } |
4074 | } |
1311 | } |
4075 | } |
|
|
4076 | |
|
|
4077 | SV * |
|
|
4078 | async (...) |
|
|
4079 | PROTOTYPE: &@ |
|
|
4080 | CODE: |
|
|
4081 | RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); |
|
|
4082 | api_ready (aTHX_ RETVAL); |
|
|
4083 | OUTPUT: |
|
|
4084 | RETVAL |
|
|
4085 | |
|
|
4086 | void |
|
|
4087 | _destroy (Coro::State coro) |
|
|
4088 | CODE: |
|
|
4089 | /* used by the manager thread */ |
|
|
4090 | coro_state_destroy (aTHX_ coro); |
|
|
4091 | |
|
|
4092 | void |
|
|
4093 | on_destroy (Coro::State coro, SV *cb) |
|
|
4094 | CODE: |
|
|
4095 | coro_push_on_destroy (aTHX_ coro, newSVsv (cb)); |
|
|
4096 | |
|
|
4097 | void |
|
|
4098 | join (...) |
|
|
4099 | CODE: |
|
|
4100 | CORO_EXECUTE_SLF_XS (slf_init_join); |
|
|
4101 | |
|
|
4102 | void |
|
|
4103 | terminate (...) |
|
|
4104 | CODE: |
|
|
4105 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
4106 | |
|
|
4107 | void |
|
|
4108 | cancel (...) |
|
|
4109 | CODE: |
|
|
4110 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
|
|
4111 | |
|
|
4112 | int |
|
|
4113 | safe_cancel (Coro::State self, ...) |
|
|
4114 | C_ARGS: aTHX_ self, &ST (1), items - 1 |
|
|
4115 | |
|
|
4116 | void |
|
|
4117 | schedule (...) |
|
|
4118 | CODE: |
|
|
4119 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
4120 | |
|
|
4121 | void |
|
|
4122 | schedule_to (...) |
|
|
4123 | CODE: |
|
|
4124 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
4125 | |
|
|
4126 | void |
|
|
4127 | cede_to (...) |
|
|
4128 | CODE: |
|
|
4129 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
4130 | |
|
|
4131 | void |
|
|
4132 | cede (...) |
|
|
4133 | CODE: |
|
|
4134 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
4135 | |
|
|
4136 | void |
|
|
4137 | cede_notself (...) |
|
|
4138 | CODE: |
|
|
4139 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1312 | |
4140 | |
1313 | void |
4141 | void |
1314 | _set_current (SV *current) |
4142 | _set_current (SV *current) |
1315 | PROTOTYPE: $ |
4143 | PROTOTYPE: $ |
1316 | CODE: |
4144 | CODE: |
1317 | SvREFCNT_dec (SvRV (coro_current)); |
4145 | SvREFCNT_dec_NN (SvRV (coro_current)); |
1318 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
4146 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
4147 | |
|
|
4148 | void |
|
|
4149 | _set_readyhook (SV *hook) |
|
|
4150 | PROTOTYPE: $ |
|
|
4151 | CODE: |
|
|
4152 | SvREFCNT_dec (coro_readyhook); |
|
|
4153 | SvGETMAGIC (hook); |
|
|
4154 | if (SvOK (hook)) |
|
|
4155 | { |
|
|
4156 | coro_readyhook = newSVsv (hook); |
|
|
4157 | CORO_READYHOOK = invoke_sv_ready_hook_helper; |
|
|
4158 | } |
|
|
4159 | else |
|
|
4160 | { |
|
|
4161 | coro_readyhook = 0; |
|
|
4162 | CORO_READYHOOK = 0; |
|
|
4163 | } |
1319 | |
4164 | |
1320 | int |
4165 | int |
1321 | prio (Coro::State coro, int newprio = 0) |
4166 | prio (Coro::State coro, int newprio = 0) |
|
|
4167 | PROTOTYPE: $;$ |
1322 | ALIAS: |
4168 | ALIAS: |
1323 | nice = 1 |
4169 | nice = 1 |
1324 | CODE: |
4170 | CODE: |
1325 | { |
4171 | { |
1326 | RETVAL = coro->prio; |
4172 | RETVAL = coro->prio; |
… | |
… | |
1328 | if (items > 1) |
4174 | if (items > 1) |
1329 | { |
4175 | { |
1330 | if (ix) |
4176 | if (ix) |
1331 | newprio = coro->prio - newprio; |
4177 | newprio = coro->prio - newprio; |
1332 | |
4178 | |
1333 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
4179 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
1334 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
4180 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
1335 | |
4181 | |
1336 | coro->prio = newprio; |
4182 | coro->prio = newprio; |
1337 | } |
4183 | } |
1338 | } |
4184 | } |
1339 | OUTPUT: |
4185 | OUTPUT: |
… | |
… | |
1341 | |
4187 | |
1342 | SV * |
4188 | SV * |
1343 | ready (SV *self) |
4189 | ready (SV *self) |
1344 | PROTOTYPE: $ |
4190 | PROTOTYPE: $ |
1345 | CODE: |
4191 | CODE: |
1346 | RETVAL = boolSV (api_ready (self)); |
4192 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1347 | OUTPUT: |
|
|
1348 | RETVAL |
|
|
1349 | |
|
|
1350 | SV * |
|
|
1351 | is_ready (SV *self) |
|
|
1352 | PROTOTYPE: $ |
|
|
1353 | CODE: |
|
|
1354 | RETVAL = boolSV (api_is_ready (self)); |
|
|
1355 | OUTPUT: |
4193 | OUTPUT: |
1356 | RETVAL |
4194 | RETVAL |
1357 | |
4195 | |
1358 | int |
4196 | int |
1359 | nready (...) |
4197 | nready (...) |
… | |
… | |
1361 | CODE: |
4199 | CODE: |
1362 | RETVAL = coro_nready; |
4200 | RETVAL = coro_nready; |
1363 | OUTPUT: |
4201 | OUTPUT: |
1364 | RETVAL |
4202 | RETVAL |
1365 | |
4203 | |
1366 | MODULE = Coro::State PACKAGE = Coro::AIO |
4204 | void |
|
|
4205 | suspend (Coro::State self) |
|
|
4206 | PROTOTYPE: $ |
|
|
4207 | CODE: |
|
|
4208 | self->flags |= CF_SUSPENDED; |
|
|
4209 | |
|
|
4210 | void |
|
|
4211 | resume (Coro::State self) |
|
|
4212 | PROTOTYPE: $ |
|
|
4213 | CODE: |
|
|
4214 | self->flags &= ~CF_SUSPENDED; |
|
|
4215 | |
|
|
4216 | void |
|
|
4217 | _pool_handler (...) |
|
|
4218 | CODE: |
|
|
4219 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
|
|
4220 | |
|
|
4221 | void |
|
|
4222 | async_pool (SV *cv, ...) |
|
|
4223 | PROTOTYPE: &@ |
|
|
4224 | PPCODE: |
|
|
4225 | { |
|
|
4226 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
4227 | AV *av = newAV (); |
|
|
4228 | SV *cb = ST (0); |
|
|
4229 | int i; |
|
|
4230 | |
|
|
4231 | av_extend (av, items - 2); |
|
|
4232 | for (i = 1; i < items; ++i) |
|
|
4233 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
4234 | |
|
|
4235 | if ((SV *)hv == &PL_sv_undef) |
|
|
4236 | { |
|
|
4237 | SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1); |
|
|
4238 | hv = (HV *)SvREFCNT_inc_NN (SvRV (sv)); |
|
|
4239 | SvREFCNT_dec_NN (sv); |
|
|
4240 | } |
|
|
4241 | |
|
|
4242 | { |
|
|
4243 | struct coro *coro = SvSTATE_hv (hv); |
|
|
4244 | |
|
|
4245 | assert (!coro->invoke_cb); |
|
|
4246 | assert (!coro->invoke_av); |
|
|
4247 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
4248 | coro->invoke_av = av; |
|
|
4249 | } |
|
|
4250 | |
|
|
4251 | api_ready (aTHX_ (SV *)hv); |
|
|
4252 | |
|
|
4253 | if (GIMME_V != G_VOID) |
|
|
4254 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
4255 | else |
|
|
4256 | SvREFCNT_dec_NN (hv); |
|
|
4257 | } |
1367 | |
4258 | |
1368 | SV * |
4259 | SV * |
1369 | _get_state () |
4260 | rouse_cb () |
|
|
4261 | PROTOTYPE: |
1370 | CODE: |
4262 | CODE: |
1371 | { |
4263 | RETVAL = coro_new_rouse_cb (aTHX); |
1372 | struct io_state *data; |
|
|
1373 | |
|
|
1374 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1375 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1376 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1377 | SvPOK_only (RETVAL); |
|
|
1378 | |
|
|
1379 | data->errorno = errno; |
|
|
1380 | data->laststype = PL_laststype; |
|
|
1381 | data->laststatval = PL_laststatval; |
|
|
1382 | data->statcache = PL_statcache; |
|
|
1383 | } |
|
|
1384 | OUTPUT: |
4264 | OUTPUT: |
1385 | RETVAL |
4265 | RETVAL |
1386 | |
4266 | |
1387 | void |
4267 | void |
1388 | _set_state (char *data_) |
4268 | rouse_wait (...) |
|
|
4269 | PROTOTYPE: ;$ |
|
|
4270 | PPCODE: |
|
|
4271 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
4272 | |
|
|
4273 | void |
|
|
4274 | on_enter (SV *block) |
|
|
4275 | ALIAS: |
|
|
4276 | on_leave = 1 |
1389 | PROTOTYPE: $ |
4277 | PROTOTYPE: & |
1390 | CODE: |
4278 | CODE: |
1391 | { |
4279 | { |
1392 | struct io_state *data = (void *)data_; |
4280 | struct coro *coro = SvSTATE_current; |
|
|
4281 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
1393 | |
4282 | |
1394 | errno = data->errorno; |
4283 | block = s_get_cv_croak (block); |
1395 | PL_laststype = data->laststype; |
|
|
1396 | PL_laststatval = data->laststatval; |
|
|
1397 | PL_statcache = data->statcache; |
|
|
1398 | } |
|
|
1399 | |
4284 | |
|
|
4285 | if (!*avp) |
|
|
4286 | *avp = newAV (); |
|
|
4287 | |
|
|
4288 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
4289 | |
|
|
4290 | if (!ix) |
|
|
4291 | on_enterleave_call (aTHX_ block); |
|
|
4292 | |
|
|
4293 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4294 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
4295 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4296 | } |
|
|
4297 | |
|
|
4298 | |
|
|
4299 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
4300 | |
|
|
4301 | BOOT: |
|
|
4302 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
4303 | |
|
|
4304 | |
|
|
4305 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
4306 | |
|
|
4307 | SV * |
|
|
4308 | new (SV *klass, SV *count = 0) |
|
|
4309 | CODE: |
|
|
4310 | { |
|
|
4311 | int semcnt = 1; |
|
|
4312 | |
|
|
4313 | if (count) |
|
|
4314 | { |
|
|
4315 | SvGETMAGIC (count); |
|
|
4316 | |
|
|
4317 | if (SvOK (count)) |
|
|
4318 | semcnt = SvIV (count); |
|
|
4319 | } |
|
|
4320 | |
|
|
4321 | RETVAL = sv_bless ( |
|
|
4322 | coro_waitarray_new (aTHX_ semcnt), |
|
|
4323 | GvSTASH (CvGV (cv)) |
|
|
4324 | ); |
|
|
4325 | } |
|
|
4326 | OUTPUT: |
|
|
4327 | RETVAL |
|
|
4328 | |
|
|
4329 | # helper for Coro::Channel and others |
|
|
4330 | SV * |
|
|
4331 | _alloc (int count) |
|
|
4332 | CODE: |
|
|
4333 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
4334 | OUTPUT: |
|
|
4335 | RETVAL |
|
|
4336 | |
|
|
4337 | SV * |
|
|
4338 | count (SV *self) |
|
|
4339 | CODE: |
|
|
4340 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
4341 | OUTPUT: |
|
|
4342 | RETVAL |
|
|
4343 | |
|
|
4344 | void |
|
|
4345 | up (SV *self) |
|
|
4346 | CODE: |
|
|
4347 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), 1); |
|
|
4348 | |
|
|
4349 | void |
|
|
4350 | adjust (SV *self, int adjust) |
|
|
4351 | CODE: |
|
|
4352 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), adjust); |
|
|
4353 | |
|
|
4354 | void |
|
|
4355 | down (...) |
|
|
4356 | CODE: |
|
|
4357 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
4358 | |
|
|
4359 | void |
|
|
4360 | wait (...) |
|
|
4361 | CODE: |
|
|
4362 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
4363 | |
|
|
4364 | void |
|
|
4365 | try (SV *self) |
|
|
4366 | PPCODE: |
|
|
4367 | { |
|
|
4368 | AV *av = (AV *)SvRV (self); |
|
|
4369 | SV *count_sv = AvARRAY (av)[0]; |
|
|
4370 | IV count = SvIVX (count_sv); |
|
|
4371 | |
|
|
4372 | if (count > 0) |
|
|
4373 | { |
|
|
4374 | --count; |
|
|
4375 | SvIVX (count_sv) = count; |
|
|
4376 | XSRETURN_YES; |
|
|
4377 | } |
|
|
4378 | else |
|
|
4379 | XSRETURN_NO; |
|
|
4380 | } |
|
|
4381 | |
|
|
4382 | void |
|
|
4383 | waiters (SV *self) |
|
|
4384 | PPCODE: |
|
|
4385 | { |
|
|
4386 | AV *av = (AV *)SvRV (self); |
|
|
4387 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
4388 | |
|
|
4389 | if (GIMME_V == G_SCALAR) |
|
|
4390 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
4391 | else |
|
|
4392 | { |
|
|
4393 | int i; |
|
|
4394 | EXTEND (SP, wcount); |
|
|
4395 | for (i = 1; i <= wcount; ++i) |
|
|
4396 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
4397 | } |
|
|
4398 | } |
|
|
4399 | |
|
|
4400 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
4401 | |
|
|
4402 | void |
|
|
4403 | _may_delete (SV *sem, int count, unsigned int extra_refs) |
|
|
4404 | PPCODE: |
|
|
4405 | { |
|
|
4406 | AV *av = (AV *)SvRV (sem); |
|
|
4407 | |
|
|
4408 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
|
|
4409 | && AvFILLp (av) == 0 /* no waiters, just count */ |
|
|
4410 | && SvIV (AvARRAY (av)[0]) == count) |
|
|
4411 | XSRETURN_YES; |
|
|
4412 | |
|
|
4413 | XSRETURN_NO; |
|
|
4414 | } |
|
|
4415 | |
|
|
4416 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
4417 | |
|
|
4418 | SV * |
|
|
4419 | new (SV *klass) |
|
|
4420 | CODE: |
|
|
4421 | RETVAL = sv_bless ( |
|
|
4422 | coro_waitarray_new (aTHX_ 0), |
|
|
4423 | GvSTASH (CvGV (cv)) |
|
|
4424 | ); |
|
|
4425 | OUTPUT: |
|
|
4426 | RETVAL |
|
|
4427 | |
|
|
4428 | void |
|
|
4429 | wait (...) |
|
|
4430 | CODE: |
|
|
4431 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
4432 | |
|
|
4433 | void |
|
|
4434 | broadcast (SV *self) |
|
|
4435 | CODE: |
|
|
4436 | { |
|
|
4437 | AV *av = (AV *)SvRV (self); |
|
|
4438 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
4439 | } |
|
|
4440 | |
|
|
4441 | void |
|
|
4442 | send (SV *self) |
|
|
4443 | CODE: |
|
|
4444 | { |
|
|
4445 | AV *av = (AV *)SvRV (self); |
|
|
4446 | |
|
|
4447 | if (AvFILLp (av)) |
|
|
4448 | coro_signal_wake (aTHX_ av, 1); |
|
|
4449 | else |
|
|
4450 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
4451 | } |
|
|
4452 | |
|
|
4453 | IV |
|
|
4454 | awaited (SV *self) |
|
|
4455 | CODE: |
|
|
4456 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
4457 | OUTPUT: |
|
|
4458 | RETVAL |
|
|
4459 | |
|
|
4460 | |
|
|
4461 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
4462 | |
|
|
4463 | BOOT: |
|
|
4464 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
4465 | |
|
|
4466 | void |
|
|
4467 | _schedule (...) |
|
|
4468 | CODE: |
|
|
4469 | { |
|
|
4470 | static int incede; |
|
|
4471 | |
|
|
4472 | api_cede_notself (aTHX); |
|
|
4473 | |
|
|
4474 | ++incede; |
|
|
4475 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
4476 | ; |
|
|
4477 | |
|
|
4478 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
4479 | if (coro_nready >= incede) |
|
|
4480 | { |
|
|
4481 | PUSHMARK (SP); |
|
|
4482 | PUTBACK; |
|
|
4483 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
4484 | } |
|
|
4485 | |
|
|
4486 | --incede; |
|
|
4487 | } |
|
|
4488 | |
|
|
4489 | |
|
|
4490 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
4491 | |
|
|
4492 | void |
|
|
4493 | _register (char *target, char *proto, SV *req) |
|
|
4494 | CODE: |
|
|
4495 | { |
|
|
4496 | SV *req_cv = s_get_cv_croak (req); |
|
|
4497 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
4498 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
4499 | sv_setpv ((SV *)slf_cv, proto); |
|
|
4500 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
4501 | } |
|
|
4502 | |
|
|
4503 | MODULE = Coro::State PACKAGE = Coro::Select |
|
|
4504 | |
|
|
4505 | void |
|
|
4506 | patch_pp_sselect () |
|
|
4507 | CODE: |
|
|
4508 | if (!coro_old_pp_sselect) |
|
|
4509 | { |
|
|
4510 | coro_select_select = (SV *)get_cv ("Coro::Select::select", 0); |
|
|
4511 | coro_old_pp_sselect = PL_ppaddr [OP_SSELECT]; |
|
|
4512 | PL_ppaddr [OP_SSELECT] = coro_pp_sselect; |
|
|
4513 | } |
|
|
4514 | |
|
|
4515 | void |
|
|
4516 | unpatch_pp_sselect () |
|
|
4517 | CODE: |
|
|
4518 | if (coro_old_pp_sselect) |
|
|
4519 | { |
|
|
4520 | PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; |
|
|
4521 | coro_old_pp_sselect = 0; |
|
|
4522 | } |
|
|
4523 | |
|
|
4524 | MODULE = Coro::State PACKAGE = Coro::Util |
|
|
4525 | |
|
|
4526 | void |
|
|
4527 | _exit (int code) |
|
|
4528 | CODE: |
|
|
4529 | _exit (code); |
|
|
4530 | |
|
|
4531 | NV |
|
|
4532 | time () |
|
|
4533 | CODE: |
|
|
4534 | RETVAL = nvtime (aTHX); |
|
|
4535 | OUTPUT: |
|
|
4536 | RETVAL |
|
|
4537 | |
|
|
4538 | NV |
|
|
4539 | gettimeofday () |
|
|
4540 | PPCODE: |
|
|
4541 | { |
|
|
4542 | UV tv [2]; |
|
|
4543 | u2time (aTHX_ tv); |
|
|
4544 | EXTEND (SP, 2); |
|
|
4545 | PUSHs (sv_2mortal (newSVuv (tv [0]))); |
|
|
4546 | PUSHs (sv_2mortal (newSVuv (tv [1]))); |
|
|
4547 | } |
|
|
4548 | |