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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 | #endif |
113 | # include <syscall.h> /* for SYS_* */ |
39 | |
114 | # ifdef SYS_clock_gettime |
40 | /* the maximum number of idle cctx that will be pooled */ |
115 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
41 | #define MAX_IDLE_CCTX 8 |
116 | # define CORO_CLOCK_MONOTONIC 1 |
42 | |
117 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
43 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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44 | (PERL_REVISION > (a) \ |
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45 | || (PERL_REVISION == (a) \ |
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46 | && (PERL_VERSION > (b) \ |
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47 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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48 | |
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49 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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50 | # ifndef PL_ppaddr |
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51 | # define PL_ppaddr ppaddr |
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52 | # endif |
118 | # endif |
53 | # ifndef call_sv |
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54 | # define call_sv perl_call_sv |
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55 | # endif |
119 | #endif |
56 | # ifndef get_sv |
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57 | # define get_sv perl_get_sv |
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58 | # endif |
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59 | # ifndef get_cv |
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60 | # define get_cv perl_get_cv |
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61 | # endif |
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62 | # ifndef IS_PADGV |
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63 | # define IS_PADGV(v) 0 |
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64 | # endif |
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65 | # ifndef IS_PADCONST |
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66 | # define IS_PADCONST(v) 0 |
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67 | # endif |
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68 | #endif |
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69 | |
120 | |
70 | /* 5.8.7 */ |
121 | static double (*nvtime)(); /* so why doesn't it take void? */ |
71 | #ifndef SvRV_set |
122 | static void (*u2time)(pTHX_ UV ret[2]); |
72 | # define SvRV_set(s,v) SvRV(s) = (v) |
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73 | #endif |
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74 | |
123 | |
75 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
124 | /* we hijack an hopefully unused CV flag for our purposes */ |
76 | # undef STACKGUARD |
125 | #define CVf_SLF 0x4000 |
77 | #endif |
126 | static OP *pp_slf (pTHX); |
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127 | static void slf_destroy (pTHX_ struct coro *coro); |
78 | |
128 | |
79 | #ifndef STACKGUARD |
129 | static U32 cctx_gen; |
80 | # define STACKGUARD 0 |
130 | static size_t cctx_stacksize = CORO_STACKSIZE; |
81 | #endif |
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82 | |
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83 | /* prefer perl internal functions over our own? */ |
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84 | #ifndef PREFER_PERL_FUNCTIONS |
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85 | # define PREFER_PERL_FUNCTIONS 0 |
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86 | #endif |
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87 | |
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88 | /* The next macro should declare a variable stacklevel that contains and approximation |
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89 | * to the current C stack pointer. Its property is that it changes with each call |
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90 | * and should be unique. */ |
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91 | #define dSTACKLEVEL int stacklevel |
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92 | #define STACKLEVEL ((void *)&stacklevel) |
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93 | |
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94 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
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95 | |
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96 | #if __GNUC__ >= 3 |
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97 | # define attribute(x) __attribute__(x) |
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98 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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99 | #else |
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100 | # define attribute(x) |
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101 | # define BARRIER |
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102 | #endif |
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103 | |
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104 | #define NOINLINE attribute ((noinline)) |
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105 | |
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106 | #include "CoroAPI.h" |
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107 | |
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108 | #ifdef USE_ITHREADS |
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109 | static perl_mutex coro_mutex; |
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110 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
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111 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
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112 | #else |
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113 | # define LOCK (void)0 |
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114 | # define UNLOCK (void)0 |
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115 | #endif |
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116 | |
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117 | struct io_state |
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118 | { |
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119 | int errorno; |
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120 | I32 laststype; |
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121 | int laststatval; |
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122 | Stat_t statcache; |
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123 | }; |
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124 | |
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125 | static struct CoroAPI coroapi; |
131 | static struct CoroAPI coroapi; |
126 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
132 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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133 | static JMPENV *main_top_env; |
127 | static HV *coro_state_stash, *coro_stash; |
134 | static HV *coro_state_stash, *coro_stash; |
128 | static SV *coro_mortal; /* will be freed after next transfer */ |
135 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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136 | |
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137 | static AV *av_destroy; /* destruction queue */ |
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138 | static SV *sv_manager; /* the manager coro */ |
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139 | static SV *sv_idle; /* $Coro::idle */ |
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140 | |
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141 | static GV *irsgv; /* $/ */ |
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142 | static GV *stdoutgv; /* *STDOUT */ |
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143 | static SV *rv_diehook; |
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144 | static SV *rv_warnhook; |
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145 | |
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146 | /* async_pool helper stuff */ |
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147 | static SV *sv_pool_rss; |
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148 | static SV *sv_pool_size; |
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149 | static SV *sv_async_pool_idle; /* description string */ |
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150 | static AV *av_async_pool; /* idle pool */ |
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151 | static SV *sv_Coro; /* class string */ |
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152 | static CV *cv_pool_handler; |
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153 | |
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154 | /* Coro::AnyEvent */ |
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155 | static SV *sv_activity; |
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156 | |
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157 | /* enable processtime/realtime profiling */ |
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158 | static char enable_times; |
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159 | typedef U32 coro_ts[2]; |
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160 | static coro_ts time_real, time_cpu; |
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161 | static char times_valid; |
129 | |
162 | |
130 | static struct coro_cctx *cctx_first; |
163 | static struct coro_cctx *cctx_first; |
131 | static int cctx_count, cctx_idle; |
164 | static int cctx_count, cctx_idle; |
132 | |
165 | |
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166 | enum |
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167 | { |
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168 | CC_MAPPED = 0x01, |
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169 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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170 | CC_TRACE = 0x04, |
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171 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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172 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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173 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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174 | }; |
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175 | |
133 | /* this is a structure representing a c-level coroutine */ |
176 | /* this is a structure representing a c-level coroutine */ |
134 | typedef struct coro_cctx { |
177 | typedef struct coro_cctx |
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178 | { |
135 | struct coro_cctx *next; |
179 | struct coro_cctx *next; |
136 | |
180 | |
137 | /* the stack */ |
181 | /* the stack */ |
138 | void *sptr; |
182 | struct coro_stack stack; |
139 | long ssize; /* positive == mmap, otherwise malloc */ |
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140 | |
183 | |
141 | /* cpu state */ |
184 | /* cpu state */ |
142 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
185 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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186 | #ifndef NDEBUG |
143 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
187 | JMPENV *idle_te; /* same as idle_sp, but for top_env */ |
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188 | #endif |
144 | JMPENV *top_env; |
189 | JMPENV *top_env; |
145 | coro_context cctx; |
190 | coro_context cctx; |
146 | |
191 | |
147 | int inuse; |
192 | U32 gen; |
148 | |
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149 | #if USE_VALGRIND |
193 | #if CORO_USE_VALGRIND |
150 | int valgrind_id; |
194 | int valgrind_id; |
151 | #endif |
195 | #endif |
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196 | unsigned char flags; |
152 | } coro_cctx; |
197 | } coro_cctx; |
153 | |
198 | |
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199 | static coro_cctx *cctx_current; /* the currently running cctx */ |
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200 | |
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201 | /*****************************************************************************/ |
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202 | |
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203 | static MGVTBL coro_state_vtbl; |
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204 | |
154 | enum { |
205 | enum |
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206 | { |
155 | CF_RUNNING = 0x0001, /* coroutine is running */ |
207 | CF_RUNNING = 0x0001, /* coroutine is running */ |
156 | CF_READY = 0x0002, /* coroutine is ready */ |
208 | CF_READY = 0x0002, /* coroutine is ready */ |
157 | CF_NEW = 0x0004, /* has never been switched to */ |
209 | CF_NEW = 0x0004, /* has never been switched to */ |
158 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
210 | CF_ZOMBIE = 0x0008, /* coroutine data has been freed */ |
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211 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
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212 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
159 | }; |
213 | }; |
160 | |
214 | |
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215 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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216 | typedef struct |
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217 | { |
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218 | #define VARx(name,expr,type) type name; |
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219 | #include "state.h" |
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220 | } perl_slots; |
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221 | |
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222 | /* how many context stack entries do we need for perl_slots */ |
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223 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
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224 | |
161 | /* this is a structure representing a perl-level coroutine */ |
225 | /* this is a structure representing a perl-level coroutine */ |
162 | struct coro { |
226 | struct coro |
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227 | { |
163 | /* the c coroutine allocated to this perl coroutine, if any */ |
228 | /* the C coroutine allocated to this perl coroutine, if any */ |
164 | coro_cctx *cctx; |
229 | coro_cctx *cctx; |
165 | |
230 | |
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231 | /* ready queue */ |
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232 | struct coro *next_ready; |
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233 | |
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234 | /* state data */ |
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235 | struct CoroSLF slf_frame; /* saved slf frame */ |
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236 | AV *mainstack; |
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237 | perl_slots *slot; /* basically the saved sp */ |
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238 | |
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239 | CV *startcv; /* the CV to execute */ |
166 | /* data associated with this coroutine (initial args) */ |
240 | AV *args; /* data associated with this coroutine (initial args) */ |
167 | AV *args; |
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168 | int refcnt; |
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169 | int save; /* CORO_SAVE flags */ |
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170 | int flags; /* CF_ flags */ |
241 | int flags; /* CF_ flags */ |
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242 | HV *hv; /* the perl hash associated with this coro, if any */ |
171 | |
243 | |
172 | /* optionally saved, might be zero */ |
244 | /* statistics */ |
173 | AV *defav; /* @_ */ |
245 | int usecount; /* number of transfers to this coro */ |
174 | SV *defsv; /* $_ */ |
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175 | SV *errsv; /* $@ */ |
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176 | SV *irssv; /* $/ */ |
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177 | SV *irssv_sv; /* real $/ cache */ |
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178 | |
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179 | #define VAR(name,type) type name; |
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180 | # include "state.h" |
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181 | #undef VAR |
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182 | |
246 | |
183 | /* coro process data */ |
247 | /* coro process data */ |
184 | int prio; |
248 | int prio; |
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249 | SV *except; /* exception to be thrown */ |
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250 | SV *rouse_cb; /* last rouse callback */ |
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251 | AV *on_destroy; /* callbacks or coros to notify on destroy */ |
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252 | AV *status; /* the exit status list */ |
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253 | |
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254 | /* async_pool */ |
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255 | SV *saved_deffh; |
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256 | SV *invoke_cb; |
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257 | AV *invoke_av; |
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258 | |
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259 | /* on_enter/on_leave */ |
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260 | AV *on_enter; AV *on_enter_xs; |
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261 | AV *on_leave; AV *on_leave_xs; |
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262 | |
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263 | /* swap_sv */ |
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264 | AV *swap_sv; |
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265 | |
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266 | /* times */ |
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267 | coro_ts t_cpu, t_real; |
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268 | |
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269 | /* linked list */ |
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270 | struct coro *next, *prev; |
185 | }; |
271 | }; |
186 | |
272 | |
187 | typedef struct coro *Coro__State; |
273 | typedef struct coro *Coro__State; |
188 | typedef struct coro *Coro__State_or_hashref; |
274 | typedef struct coro *Coro__State_or_hashref; |
189 | |
275 | |
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276 | /* the following variables are effectively part of the perl context */ |
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277 | /* and get copied between struct coro and these variables */ |
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278 | /* the main reason we don't support windows process emulation */ |
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279 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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280 | |
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281 | /** Coro ********************************************************************/ |
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282 | |
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283 | #define CORO_PRIO_MAX 3 |
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284 | #define CORO_PRIO_HIGH 1 |
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285 | #define CORO_PRIO_NORMAL 0 |
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286 | #define CORO_PRIO_LOW -1 |
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287 | #define CORO_PRIO_IDLE -3 |
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288 | #define CORO_PRIO_MIN -4 |
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289 | |
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290 | /* for Coro.pm */ |
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291 | static SV *coro_current; |
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292 | static SV *coro_readyhook; |
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293 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
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294 | static CV *cv_coro_run; |
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295 | static struct coro *coro_first; |
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296 | #define coro_nready coroapi.nready |
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297 | |
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298 | /** JIT *********************************************************************/ |
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299 | |
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300 | #if CORO_JIT |
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301 | /* APPLE doesn't have mmap though */ |
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302 | #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__) |
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303 | #ifndef CORO_JIT_TYPE |
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304 | #if ECB_AMD64 && CORO_JIT_UNIXY |
|
|
305 | #define CORO_JIT_TYPE "amd64-unix" |
|
|
306 | #elif __i386 && CORO_JIT_UNIXY |
|
|
307 | #define CORO_JIT_TYPE "x86-unix" |
|
|
308 | #endif |
|
|
309 | #endif |
|
|
310 | #endif |
|
|
311 | |
|
|
312 | #if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0 |
|
|
313 | #undef CORO_JIT |
|
|
314 | #endif |
|
|
315 | |
|
|
316 | #if CORO_JIT |
|
|
317 | typedef void (*load_save_perl_slots_type)(perl_slots *); |
|
|
318 | static load_save_perl_slots_type load_perl_slots, save_perl_slots; |
|
|
319 | #endif |
|
|
320 | |
|
|
321 | /** Coro::Select ************************************************************/ |
|
|
322 | |
|
|
323 | static OP *(*coro_old_pp_sselect) (pTHX); |
|
|
324 | static SV *coro_select_select; |
|
|
325 | |
|
|
326 | /* horrible hack, but if it works... */ |
190 | static AV * |
327 | static OP * |
|
|
328 | coro_pp_sselect (pTHX) |
|
|
329 | { |
|
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330 | dSP; |
|
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331 | PUSHMARK (SP - 4); /* fake argument list */ |
|
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332 | XPUSHs (coro_select_select); |
|
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333 | PUTBACK; |
|
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334 | |
|
|
335 | /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ |
|
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336 | PL_op->op_flags |= OPf_STACKED; |
|
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337 | PL_op->op_private = 0; |
|
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338 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
|
|
339 | } |
|
|
340 | |
|
|
341 | /** time stuff **************************************************************/ |
|
|
342 | |
|
|
343 | #ifdef HAS_GETTIMEOFDAY |
|
|
344 | |
|
|
345 | ecb_inline void |
|
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346 | coro_u2time (pTHX_ UV ret[2]) |
|
|
347 | { |
|
|
348 | struct timeval tv; |
|
|
349 | gettimeofday (&tv, 0); |
|
|
350 | |
|
|
351 | ret [0] = tv.tv_sec; |
|
|
352 | ret [1] = tv.tv_usec; |
|
|
353 | } |
|
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354 | |
|
|
355 | ecb_inline double |
|
|
356 | coro_nvtime (void) |
|
|
357 | { |
|
|
358 | struct timeval tv; |
|
|
359 | gettimeofday (&tv, 0); |
|
|
360 | |
|
|
361 | return tv.tv_sec + tv.tv_usec * 1e-6; |
|
|
362 | } |
|
|
363 | |
|
|
364 | ecb_inline void |
|
|
365 | time_init (pTHX) |
|
|
366 | { |
|
|
367 | nvtime = coro_nvtime; |
|
|
368 | u2time = coro_u2time; |
|
|
369 | } |
|
|
370 | |
|
|
371 | #else |
|
|
372 | |
|
|
373 | ecb_inline void |
|
|
374 | time_init (pTHX) |
|
|
375 | { |
|
|
376 | SV **svp; |
|
|
377 | |
|
|
378 | require_pv ("Time/HiRes.pm"); |
|
|
379 | |
|
|
380 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
381 | |
|
|
382 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
|
|
383 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
|
|
384 | |
|
|
385 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
386 | |
|
|
387 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
|
|
388 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
|
|
389 | } |
|
|
390 | |
|
|
391 | #endif |
|
|
392 | |
|
|
393 | /** lowlevel stuff **********************************************************/ |
|
|
394 | |
|
|
395 | static SV * ecb_noinline |
|
|
396 | coro_get_sv (pTHX_ const char *name, int create) |
|
|
397 | { |
|
|
398 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
399 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
400 | get_sv (name, create); |
|
|
401 | #endif |
|
|
402 | return get_sv (name, create); |
|
|
403 | } |
|
|
404 | |
|
|
405 | static AV * ecb_noinline |
|
|
406 | coro_get_av (pTHX_ const char *name, int create) |
|
|
407 | { |
|
|
408 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
409 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
410 | get_av (name, create); |
|
|
411 | #endif |
|
|
412 | return get_av (name, create); |
|
|
413 | } |
|
|
414 | |
|
|
415 | static HV * ecb_noinline |
|
|
416 | coro_get_hv (pTHX_ const char *name, int create) |
|
|
417 | { |
|
|
418 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
419 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
420 | get_hv (name, create); |
|
|
421 | #endif |
|
|
422 | return get_hv (name, create); |
|
|
423 | } |
|
|
424 | |
|
|
425 | ecb_inline void |
|
|
426 | coro_times_update (void) |
|
|
427 | { |
|
|
428 | #ifdef coro_clock_gettime |
|
|
429 | struct timespec ts; |
|
|
430 | |
|
|
431 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
432 | coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts); |
|
|
433 | time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec; |
|
|
434 | |
|
|
435 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
436 | coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); |
|
|
437 | time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; |
|
|
438 | #else |
|
|
439 | dTHX; |
|
|
440 | UV tv[2]; |
|
|
441 | |
|
|
442 | u2time (aTHX_ tv); |
|
|
443 | time_real [0] = tv [0]; |
|
|
444 | time_real [1] = tv [1] * 1000; |
|
|
445 | #endif |
|
|
446 | } |
|
|
447 | |
|
|
448 | ecb_inline void |
|
|
449 | coro_times_add (struct coro *c) |
|
|
450 | { |
|
|
451 | c->t_real [1] += time_real [1]; |
|
|
452 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
|
|
453 | c->t_real [0] += time_real [0]; |
|
|
454 | |
|
|
455 | c->t_cpu [1] += time_cpu [1]; |
|
|
456 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
|
|
457 | c->t_cpu [0] += time_cpu [0]; |
|
|
458 | } |
|
|
459 | |
|
|
460 | ecb_inline void |
|
|
461 | coro_times_sub (struct coro *c) |
|
|
462 | { |
|
|
463 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
|
|
464 | c->t_real [1] -= time_real [1]; |
|
|
465 | c->t_real [0] -= time_real [0]; |
|
|
466 | |
|
|
467 | if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; } |
|
|
468 | c->t_cpu [1] -= time_cpu [1]; |
|
|
469 | c->t_cpu [0] -= time_cpu [0]; |
|
|
470 | } |
|
|
471 | |
|
|
472 | /*****************************************************************************/ |
|
|
473 | /* magic glue */ |
|
|
474 | |
|
|
475 | #define CORO_MAGIC_type_cv 26 |
|
|
476 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
477 | |
|
|
478 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
479 | (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
480 | ? SvMAGIC (sv) \ |
|
|
481 | : mg_find (sv, type)) |
|
|
482 | |
|
|
483 | #define CORO_MAGIC(sv, type) \ |
|
|
484 | (ecb_expect_true (SvMAGIC (sv)) \ |
|
|
485 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
486 | : 0) |
|
|
487 | |
|
|
488 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
489 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
490 | |
|
|
491 | ecb_inline MAGIC * |
|
|
492 | SvSTATEhv_p (pTHX_ SV *coro) |
|
|
493 | { |
|
|
494 | MAGIC *mg; |
|
|
495 | |
|
|
496 | if (ecb_expect_true ( |
|
|
497 | SvTYPE (coro) == SVt_PVHV |
|
|
498 | && (mg = CORO_MAGIC_state (coro)) |
|
|
499 | && mg->mg_virtual == &coro_state_vtbl |
|
|
500 | )) |
|
|
501 | return mg; |
|
|
502 | |
|
|
503 | return 0; |
|
|
504 | } |
|
|
505 | |
|
|
506 | ecb_inline struct coro * |
|
|
507 | SvSTATE_ (pTHX_ SV *coro_sv) |
|
|
508 | { |
|
|
509 | MAGIC *mg; |
|
|
510 | |
|
|
511 | if (SvROK (coro_sv)) |
|
|
512 | coro_sv = SvRV (coro_sv); |
|
|
513 | |
|
|
514 | mg = SvSTATEhv_p (aTHX_ coro_sv); |
|
|
515 | if (!mg) |
|
|
516 | croak ("Coro::State object required"); |
|
|
517 | |
|
|
518 | return (struct coro *)mg->mg_ptr; |
|
|
519 | } |
|
|
520 | |
|
|
521 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
522 | |
|
|
523 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
524 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
525 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
526 | |
|
|
527 | /*****************************************************************************/ |
|
|
528 | /* padlist management and caching */ |
|
|
529 | |
|
|
530 | ecb_inline PADLIST * |
191 | coro_clone_padlist (CV *cv) |
531 | coro_derive_padlist (pTHX_ CV *cv) |
192 | { |
532 | { |
193 | AV *padlist = CvPADLIST (cv); |
533 | PADLIST *padlist = CvPADLIST (cv); |
194 | AV *newpadlist, *newpad; |
534 | PADLIST *newpadlist; |
|
|
535 | PADNAMELIST *padnames; |
|
|
536 | PAD *newpad; |
|
|
537 | PADOFFSET off = PadlistMAX (padlist) + 1; |
195 | |
538 | |
196 | newpadlist = newAV (); |
539 | #if NEWPADAPI |
|
|
540 | |
|
|
541 | /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */ |
|
|
542 | /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */ |
|
|
543 | while (!PadlistARRAY (padlist)[off - 1]) |
|
|
544 | --off; |
|
|
545 | |
|
|
546 | Perl_pad_push (aTHX_ padlist, off); |
|
|
547 | |
|
|
548 | newpad = PadlistARRAY (padlist)[off]; |
|
|
549 | PadlistARRAY (padlist)[off] = 0; |
|
|
550 | |
|
|
551 | #else |
|
|
552 | |
|
|
553 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
554 | Perl_pad_push (aTHX_ padlist, off); |
|
|
555 | #else |
|
|
556 | Perl_pad_push (aTHX_ padlist, off, 1); |
|
|
557 | #endif |
|
|
558 | |
|
|
559 | newpad = PadlistARRAY (padlist)[off]; |
|
|
560 | PadlistMAX (padlist) = off - 1; |
|
|
561 | |
|
|
562 | #endif |
|
|
563 | |
|
|
564 | newPADLIST (newpadlist); |
|
|
565 | #if !PERL_VERSION_ATLEAST(5,15,3) |
|
|
566 | /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */ |
197 | AvREAL_off (newpadlist); |
567 | AvREAL_off (newpadlist); |
198 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
|
199 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
|
|
200 | #else |
|
|
201 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
|
|
202 | #endif |
568 | #endif |
203 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
|
|
204 | --AvFILLp (padlist); |
|
|
205 | |
569 | |
206 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
570 | /* Already extended to 2 elements by newPADLIST. */ |
207 | av_store (newpadlist, 1, (SV *)newpad); |
571 | PadlistMAX (newpadlist) = 1; |
|
|
572 | |
|
|
573 | padnames = PadlistNAMES (padlist); |
|
|
574 | ++PadnamelistREFCNT (padnames); |
|
|
575 | PadlistNAMES (newpadlist) = padnames; |
|
|
576 | |
|
|
577 | PadlistARRAY (newpadlist)[1] = newpad; |
208 | |
578 | |
209 | return newpadlist; |
579 | return newpadlist; |
210 | } |
580 | } |
211 | |
581 | |
212 | static void |
582 | ecb_inline void |
213 | free_padlist (AV *padlist) |
583 | free_padlist (pTHX_ PADLIST *padlist) |
214 | { |
584 | { |
215 | /* may be during global destruction */ |
585 | /* may be during global destruction */ |
216 | if (SvREFCNT (padlist)) |
586 | if (!IN_DESTRUCT) |
217 | { |
587 | { |
218 | I32 i = AvFILLp (padlist); |
588 | I32 i = PadlistMAX (padlist); |
219 | while (i >= 0) |
589 | |
|
|
590 | while (i > 0) /* special-case index 0 */ |
220 | { |
591 | { |
221 | SV **svp = av_fetch (padlist, i--, FALSE); |
592 | /* we try to be extra-careful here */ |
|
|
593 | PAD *pad = PadlistARRAY (padlist)[i--]; |
|
|
594 | |
222 | if (svp) |
595 | if (pad) |
223 | { |
596 | { |
224 | SV *sv; |
597 | I32 j = PadMAX (pad); |
225 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
598 | |
|
|
599 | while (j >= 0) |
226 | SvREFCNT_dec (sv); |
600 | SvREFCNT_dec (PadARRAY (pad)[j--]); |
227 | |
601 | |
|
|
602 | PadMAX (pad) = -1; |
228 | SvREFCNT_dec (*svp); |
603 | SvREFCNT_dec (pad); |
229 | } |
604 | } |
230 | } |
605 | } |
231 | |
606 | |
|
|
607 | PadnamelistREFCNT_dec (PadlistNAMES (padlist)); |
|
|
608 | |
|
|
609 | #if NEWPADAPI |
|
|
610 | Safefree (PadlistARRAY (padlist)); |
|
|
611 | Safefree (padlist); |
|
|
612 | #else |
|
|
613 | AvFILLp (padlist) = -1; |
|
|
614 | AvREAL_off (padlist); |
232 | SvREFCNT_dec ((SV*)padlist); |
615 | SvREFCNT_dec ((SV*)padlist); |
|
|
616 | #endif |
233 | } |
617 | } |
234 | } |
618 | } |
235 | |
619 | |
236 | static int |
620 | static int |
237 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
621 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
238 | { |
622 | { |
239 | AV *padlist; |
623 | PADLIST *padlist; |
240 | AV *av = (AV *)mg->mg_obj; |
624 | PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t)); |
|
|
625 | size_t len = *(size_t *)mg->mg_ptr; |
241 | |
626 | |
242 | /* casting is fun. */ |
627 | /* perl manages to free our internal AV and _then_ call us */ |
243 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
628 | if (IN_DESTRUCT) |
|
|
629 | return 0; |
|
|
630 | |
|
|
631 | while (len--) |
244 | free_padlist (padlist); |
632 | free_padlist (aTHX_ padlists[len]); |
245 | |
|
|
246 | SvREFCNT_dec (av); |
|
|
247 | |
633 | |
248 | return 0; |
634 | return 0; |
249 | } |
635 | } |
250 | |
636 | |
251 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
637 | static MGVTBL coro_cv_vtbl = { |
252 | |
638 | 0, 0, 0, 0, |
253 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
639 | coro_cv_free |
254 | |
640 | }; |
255 | #define CORO_MAGIC(cv) \ |
|
|
256 | SvMAGIC (cv) \ |
|
|
257 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
|
|
258 | ? SvMAGIC (cv) \ |
|
|
259 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
|
|
260 | : 0 |
|
|
261 | |
641 | |
262 | /* the next two functions merely cache the padlists */ |
642 | /* the next two functions merely cache the padlists */ |
263 | static void |
643 | ecb_inline void |
264 | get_padlist (CV *cv) |
644 | get_padlist (pTHX_ CV *cv) |
265 | { |
645 | { |
266 | MAGIC *mg = CORO_MAGIC (cv); |
646 | MAGIC *mg = CORO_MAGIC_cv (cv); |
267 | AV *av; |
647 | size_t *lenp; |
268 | |
648 | |
269 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
649 | if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr))) |
270 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
650 | CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp]; |
271 | else |
651 | else |
272 | { |
652 | { |
273 | #if PREFER_PERL_FUNCTIONS |
653 | #if CORO_PREFER_PERL_FUNCTIONS |
274 | /* this is probably cleaner, but also slower? */ |
654 | /* this is probably cleaner? but also slower! */ |
|
|
655 | /* in practise, it seems to be less stable */ |
275 | CV *cp = Perl_cv_clone (cv); |
656 | CV *cp = Perl_cv_clone (aTHX_ cv); |
276 | CvPADLIST (cv) = CvPADLIST (cp); |
657 | CvPADLIST (cv) = CvPADLIST (cp); |
277 | CvPADLIST (cp) = 0; |
658 | CvPADLIST (cp) = 0; |
278 | SvREFCNT_dec (cp); |
659 | SvREFCNT_dec (cp); |
279 | #else |
660 | #else |
280 | CvPADLIST (cv) = coro_clone_padlist (cv); |
661 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
281 | #endif |
662 | #endif |
282 | } |
663 | } |
283 | } |
664 | } |
284 | |
665 | |
285 | static void |
666 | ecb_inline void |
286 | put_padlist (CV *cv) |
667 | put_padlist (pTHX_ CV *cv) |
287 | { |
668 | { |
288 | MAGIC *mg = CORO_MAGIC (cv); |
669 | MAGIC *mg = CORO_MAGIC_cv (cv); |
289 | AV *av; |
|
|
290 | |
670 | |
291 | if (!mg) |
671 | if (ecb_expect_false (!mg)) |
292 | { |
|
|
293 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
294 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
295 | mg->mg_virtual = &vtbl_coro; |
|
|
296 | mg->mg_obj = (SV *)newAV (); |
|
|
297 | } |
672 | { |
|
|
673 | mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
|
|
674 | Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char); |
|
|
675 | mg->mg_len = 1; /* so mg_free frees mg_ptr */ |
|
|
676 | } |
|
|
677 | else |
|
|
678 | Renew (mg->mg_ptr, |
|
|
679 | sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *), |
|
|
680 | char); |
298 | |
681 | |
299 | av = (AV *)mg->mg_obj; |
682 | ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv); |
300 | |
|
|
301 | if (AvFILLp (av) >= AvMAX (av)) |
|
|
302 | av_extend (av, AvMAX (av) + 1); |
|
|
303 | |
|
|
304 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
|
|
305 | } |
683 | } |
306 | |
684 | |
307 | #define SB do { |
685 | /** load & save, init *******************************************************/ |
308 | #define SE } while (0) |
|
|
309 | |
686 | |
310 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
687 | ecb_inline void |
|
|
688 | swap_sv (SV *a, SV *b) |
|
|
689 | { |
|
|
690 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
691 | SV tmp; |
311 | |
692 | |
|
|
693 | /* swap sv_any */ |
|
|
694 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
|
|
695 | |
|
|
696 | /* swap sv_flags */ |
|
|
697 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
698 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
699 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
700 | |
|
|
701 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
702 | /* perl 5.10 and later complicates this _quite_ a bit, but it also |
|
|
703 | * is much faster, so no quarrels here. alternatively, we could |
|
|
704 | * sv_upgrade to avoid this. |
|
|
705 | */ |
|
|
706 | { |
|
|
707 | /* swap sv_u */ |
|
|
708 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
709 | |
|
|
710 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
711 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
712 | */ |
|
|
713 | U32 svany_in_head_set = (1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV); |
|
|
714 | #if NVSIZE <= IVSIZE && PERL_VERSION_ATLEAST(5,22,0) |
|
|
715 | svany_in_head_set |= 1 << SVt_NV; |
|
|
716 | #endif |
|
|
717 | |
|
|
718 | #define svany_in_head(type) (svany_in_head_set & (1 << (type))) |
|
|
719 | |
|
|
720 | if (svany_in_head (SvTYPE (a))) |
|
|
721 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
722 | |
|
|
723 | if (svany_in_head (SvTYPE (b))) |
|
|
724 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
725 | } |
|
|
726 | #endif |
|
|
727 | } |
|
|
728 | |
|
|
729 | /* swap sv heads, at least logically */ |
312 | static void |
730 | static void |
|
|
731 | swap_svs_enter (pTHX_ Coro__State c) |
|
|
732 | { |
|
|
733 | int i; |
|
|
734 | |
|
|
735 | for (i = 0; i <= AvFILLp (c->swap_sv); i += 2) |
|
|
736 | swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]); |
|
|
737 | } |
|
|
738 | |
|
|
739 | static void |
|
|
740 | swap_svs_leave (pTHX_ Coro__State c) |
|
|
741 | { |
|
|
742 | int i; |
|
|
743 | |
|
|
744 | for (i = AvFILLp (c->swap_sv) - 1; i >= 0; i -= 2) |
|
|
745 | swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]); |
|
|
746 | } |
|
|
747 | |
|
|
748 | #define SWAP_SVS_ENTER(coro) \ |
|
|
749 | if (ecb_expect_false ((coro)->swap_sv)) \ |
|
|
750 | swap_svs_enter (aTHX_ (coro)) |
|
|
751 | |
|
|
752 | #define SWAP_SVS_LEAVE(coro) \ |
|
|
753 | if (ecb_expect_false ((coro)->swap_sv)) \ |
|
|
754 | swap_svs_leave (aTHX_ (coro)) |
|
|
755 | |
|
|
756 | static void |
|
|
757 | on_enterleave_call (pTHX_ SV *cb); |
|
|
758 | |
|
|
759 | static void |
313 | load_perl (Coro__State c) |
760 | load_perl (pTHX_ Coro__State c) |
314 | { |
761 | { |
315 | #define VAR(name,type) PL_ ## name = c->name; |
762 | perl_slots *slot = c->slot; |
|
|
763 | c->slot = 0; |
|
|
764 | |
|
|
765 | PL_mainstack = c->mainstack; |
|
|
766 | |
|
|
767 | #if CORO_JIT |
|
|
768 | load_perl_slots (slot); |
|
|
769 | #else |
|
|
770 | #define VARx(name,expr,type) expr = slot->name; |
316 | # include "state.h" |
771 | #include "state.h" |
317 | #undef VAR |
772 | #endif |
318 | |
|
|
319 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
|
|
320 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
|
|
321 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
322 | if (c->irssv) |
|
|
323 | { |
|
|
324 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
|
|
325 | SvREFCNT_dec (c->irssv); |
|
|
326 | else |
|
|
327 | { |
|
|
328 | REPLACE_SV (PL_rs, c->irssv); |
|
|
329 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
|
|
330 | sv_setsv (c->irssv_sv, PL_rs); |
|
|
331 | } |
|
|
332 | } |
|
|
333 | |
773 | |
334 | { |
774 | { |
335 | dSP; |
775 | dSP; |
|
|
776 | |
336 | CV *cv; |
777 | CV *cv; |
337 | |
778 | |
338 | /* now do the ugly restore mess */ |
779 | /* now do the ugly restore mess */ |
339 | while ((cv = (CV *)POPs)) |
780 | while (ecb_expect_true (cv = (CV *)POPs)) |
340 | { |
781 | { |
341 | put_padlist (cv); /* mark this padlist as available */ |
782 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
342 | CvDEPTH (cv) = PTR2IV (POPs); |
783 | CvDEPTH (cv) = PTR2IV (POPs); |
343 | CvPADLIST (cv) = (AV *)POPs; |
784 | CvPADLIST (cv) = (PADLIST *)POPs; |
344 | } |
785 | } |
345 | |
786 | |
346 | PUTBACK; |
787 | PUTBACK; |
347 | } |
788 | } |
348 | } |
|
|
349 | |
789 | |
|
|
790 | slf_frame = c->slf_frame; |
|
|
791 | CORO_THROW = c->except; |
|
|
792 | |
|
|
793 | if (ecb_expect_false (enable_times)) |
|
|
794 | { |
|
|
795 | if (ecb_expect_false (!times_valid)) |
|
|
796 | coro_times_update (); |
|
|
797 | |
|
|
798 | coro_times_sub (c); |
|
|
799 | } |
|
|
800 | |
|
|
801 | if (ecb_expect_false (c->on_enter)) |
|
|
802 | { |
|
|
803 | int i; |
|
|
804 | |
|
|
805 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
806 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
807 | } |
|
|
808 | |
|
|
809 | if (ecb_expect_false (c->on_enter_xs)) |
|
|
810 | { |
|
|
811 | int i; |
|
|
812 | |
|
|
813 | for (i = 0; i <= AvFILLp (c->on_enter_xs); i += 2) |
|
|
814 | ((coro_enterleave_hook)AvARRAY (c->on_enter_xs)[i]) (aTHX_ AvARRAY (c->on_enter_xs)[i + 1]); |
|
|
815 | } |
|
|
816 | |
|
|
817 | SWAP_SVS_ENTER (c); |
|
|
818 | } |
|
|
819 | |
350 | static void |
820 | static void |
351 | save_perl (Coro__State c) |
821 | save_perl (pTHX_ Coro__State c) |
352 | { |
822 | { |
|
|
823 | SWAP_SVS_LEAVE (c); |
|
|
824 | |
|
|
825 | if (ecb_expect_false (c->on_leave_xs)) |
|
|
826 | { |
|
|
827 | int i; |
|
|
828 | |
|
|
829 | for (i = AvFILLp (c->on_leave_xs) - 1; i >= 0; i -= 2) |
|
|
830 | ((coro_enterleave_hook)AvARRAY (c->on_leave_xs)[i]) (aTHX_ AvARRAY (c->on_leave_xs)[i + 1]); |
|
|
831 | } |
|
|
832 | |
|
|
833 | if (ecb_expect_false (c->on_leave)) |
|
|
834 | { |
|
|
835 | int i; |
|
|
836 | |
|
|
837 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
838 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
839 | } |
|
|
840 | |
|
|
841 | times_valid = 0; |
|
|
842 | |
|
|
843 | if (ecb_expect_false (enable_times)) |
|
|
844 | { |
|
|
845 | coro_times_update (); times_valid = 1; |
|
|
846 | coro_times_add (c); |
|
|
847 | } |
|
|
848 | |
|
|
849 | c->except = CORO_THROW; |
|
|
850 | c->slf_frame = slf_frame; |
|
|
851 | |
353 | { |
852 | { |
354 | dSP; |
853 | dSP; |
355 | I32 cxix = cxstack_ix; |
854 | I32 cxix = cxstack_ix; |
356 | PERL_CONTEXT *ccstk = cxstack; |
855 | PERL_CONTEXT *ccstk = cxstack; |
357 | PERL_SI *top_si = PL_curstackinfo; |
856 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
359 | /* |
858 | /* |
360 | * the worst thing you can imagine happens first - we have to save |
859 | * the worst thing you can imagine happens first - we have to save |
361 | * (and reinitialize) all cv's in the whole callchain :( |
860 | * (and reinitialize) all cv's in the whole callchain :( |
362 | */ |
861 | */ |
363 | |
862 | |
364 | EXTEND (SP, 3 + 1); |
|
|
365 | PUSHs (Nullsv); |
863 | XPUSHs (Nullsv); |
366 | /* this loop was inspired by pp_caller */ |
864 | /* this loop was inspired by pp_caller */ |
367 | for (;;) |
865 | for (;;) |
368 | { |
866 | { |
369 | while (cxix >= 0) |
867 | while (ecb_expect_true (cxix >= 0)) |
370 | { |
868 | { |
371 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
869 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
372 | |
870 | |
373 | if (CxTYPE (cx) == CXt_SUB) |
871 | if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT)) |
374 | { |
872 | { |
375 | CV *cv = cx->blk_sub.cv; |
873 | CV *cv = cx->blk_sub.cv; |
376 | |
874 | |
377 | if (CvDEPTH (cv)) |
875 | if (ecb_expect_true (CvDEPTH (cv))) |
378 | { |
876 | { |
379 | EXTEND (SP, 3); |
877 | EXTEND (SP, 3); |
380 | PUSHs ((SV *)CvPADLIST (cv)); |
878 | PUSHs ((SV *)CvPADLIST (cv)); |
381 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
879 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
382 | PUSHs ((SV *)cv); |
880 | PUSHs ((SV *)cv); |
383 | |
881 | |
384 | CvDEPTH (cv) = 0; |
882 | CvDEPTH (cv) = 0; |
385 | get_padlist (cv); |
883 | get_padlist (aTHX_ cv); |
386 | } |
884 | } |
387 | } |
885 | } |
388 | } |
886 | } |
389 | |
887 | |
390 | if (top_si->si_type == PERLSI_MAIN) |
888 | if (ecb_expect_true (top_si->si_type == PERLSI_MAIN)) |
391 | break; |
889 | break; |
392 | |
890 | |
393 | top_si = top_si->si_prev; |
891 | top_si = top_si->si_prev; |
394 | ccstk = top_si->si_cxstack; |
892 | ccstk = top_si->si_cxstack; |
395 | cxix = top_si->si_cxix; |
893 | cxix = top_si->si_cxix; |
396 | } |
894 | } |
397 | |
895 | |
398 | PUTBACK; |
896 | PUTBACK; |
399 | } |
897 | } |
400 | |
898 | |
401 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
899 | /* allocate some space on the context stack for our purposes */ |
402 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
900 | if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max)) |
403 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
901 | { |
404 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
902 | unsigned int i; |
405 | |
903 | |
406 | #define VAR(name,type)c->name = PL_ ## name; |
904 | for (i = 0; i < SLOT_COUNT; ++i) |
|
|
905 | CXINC; |
|
|
906 | |
|
|
907 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
908 | } |
|
|
909 | |
|
|
910 | c->mainstack = PL_mainstack; |
|
|
911 | |
|
|
912 | { |
|
|
913 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
914 | |
|
|
915 | #if CORO_JIT |
|
|
916 | save_perl_slots (slot); |
|
|
917 | #else |
|
|
918 | #define VARx(name,expr,type) slot->name = expr; |
407 | # include "state.h" |
919 | #include "state.h" |
408 | #undef VAR |
920 | #endif |
|
|
921 | } |
409 | } |
922 | } |
410 | |
923 | |
411 | /* |
924 | /* |
412 | * allocate various perl stacks. This is an exact copy |
925 | * allocate various perl stacks. This is almost an exact copy |
413 | * of perl.c:init_stacks, except that it uses less memory |
926 | * of perl.c:init_stacks, except that it uses less memory |
414 | * on the (sometimes correct) assumption that coroutines do |
927 | * on the (sometimes correct) assumption that coroutines do |
415 | * not usually need a lot of stackspace. |
928 | * not usually need a lot of stackspace. |
416 | */ |
929 | */ |
417 | #if PREFER_PERL_FUNCTIONS |
930 | #if CORO_PREFER_PERL_FUNCTIONS |
418 | # define coro_init_stacks init_stacks |
931 | # define coro_init_stacks(thx) init_stacks () |
419 | #else |
932 | #else |
420 | static void |
933 | static void |
421 | coro_init_stacks () |
934 | coro_init_stacks (pTHX) |
422 | { |
935 | { |
423 | PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); |
936 | PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */ |
424 | PL_curstackinfo->si_type = PERLSI_MAIN; |
937 | PL_curstackinfo->si_type = PERLSI_MAIN; |
425 | PL_curstack = PL_curstackinfo->si_stack; |
938 | PL_curstack = PL_curstackinfo->si_stack; |
426 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
939 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
427 | |
940 | |
428 | PL_stack_base = AvARRAY(PL_curstack); |
941 | PL_stack_base = AvARRAY(PL_curstack); |
429 | PL_stack_sp = PL_stack_base; |
942 | PL_stack_sp = PL_stack_base; |
430 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
943 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
431 | |
944 | |
432 | New(50,PL_tmps_stack,128,SV*); |
945 | New(50,PL_tmps_stack,32,SV*); |
433 | PL_tmps_floor = -1; |
946 | PL_tmps_floor = -1; |
434 | PL_tmps_ix = -1; |
947 | PL_tmps_ix = -1; |
435 | PL_tmps_max = 128; |
948 | PL_tmps_max = 32; |
436 | |
949 | |
437 | New(54,PL_markstack,32,I32); |
950 | New(54,PL_markstack,16,I32); |
438 | PL_markstack_ptr = PL_markstack; |
951 | PL_markstack_ptr = PL_markstack; |
439 | PL_markstack_max = PL_markstack + 32; |
952 | PL_markstack_max = PL_markstack + 16; |
440 | |
953 | |
441 | #ifdef SET_MARK_OFFSET |
954 | #ifdef SET_MARK_OFFSET |
442 | SET_MARK_OFFSET; |
955 | SET_MARK_OFFSET; |
443 | #endif |
956 | #endif |
444 | |
957 | |
445 | New(54,PL_scopestack,32,I32); |
958 | New(54,PL_scopestack,8,I32); |
446 | PL_scopestack_ix = 0; |
959 | PL_scopestack_ix = 0; |
447 | PL_scopestack_max = 32; |
960 | PL_scopestack_max = 8; |
|
|
961 | #if HAS_SCOPESTACK_NAME |
|
|
962 | New(54,PL_scopestack_name,8,const char*); |
|
|
963 | #endif |
448 | |
964 | |
449 | New(54,PL_savestack,64,ANY); |
965 | New(54,PL_savestack,24,ANY); |
450 | PL_savestack_ix = 0; |
966 | PL_savestack_ix = 0; |
451 | PL_savestack_max = 64; |
967 | PL_savestack_max = 24; |
452 | |
968 | |
453 | #if !PERL_VERSION_ATLEAST (5,9,0) |
969 | #if !PERL_VERSION_ATLEAST (5,10,0) |
454 | New(54,PL_retstack,16,OP*); |
970 | New(54,PL_retstack,4,OP*); |
455 | PL_retstack_ix = 0; |
971 | PL_retstack_ix = 0; |
456 | PL_retstack_max = 16; |
972 | PL_retstack_max = 4; |
457 | #endif |
973 | #endif |
458 | } |
974 | } |
459 | #endif |
975 | #endif |
460 | |
976 | |
461 | /* |
977 | /* |
462 | * destroy the stacks, the callchain etc... |
978 | * destroy the stacks, the callchain etc... |
463 | */ |
979 | */ |
464 | static void |
980 | static void |
465 | coro_destroy_stacks () |
981 | coro_destruct_stacks (pTHX) |
466 | { |
982 | { |
467 | if (!IN_DESTRUCT) |
|
|
468 | { |
|
|
469 | /* restore all saved variables and stuff */ |
|
|
470 | LEAVE_SCOPE (0); |
|
|
471 | assert (PL_tmps_floor == -1); |
|
|
472 | |
|
|
473 | /* free all temporaries */ |
|
|
474 | FREETMPS; |
|
|
475 | assert (PL_tmps_ix == -1); |
|
|
476 | |
|
|
477 | POPSTACK_TO (PL_mainstack); |
|
|
478 | } |
|
|
479 | |
|
|
480 | while (PL_curstackinfo->si_next) |
983 | while (PL_curstackinfo->si_next) |
481 | PL_curstackinfo = PL_curstackinfo->si_next; |
984 | PL_curstackinfo = PL_curstackinfo->si_next; |
482 | |
985 | |
483 | while (PL_curstackinfo) |
986 | while (PL_curstackinfo) |
484 | { |
987 | { |
… | |
… | |
493 | } |
996 | } |
494 | |
997 | |
495 | Safefree (PL_tmps_stack); |
998 | Safefree (PL_tmps_stack); |
496 | Safefree (PL_markstack); |
999 | Safefree (PL_markstack); |
497 | Safefree (PL_scopestack); |
1000 | Safefree (PL_scopestack); |
|
|
1001 | #if HAS_SCOPESTACK_NAME |
|
|
1002 | Safefree (PL_scopestack_name); |
|
|
1003 | #endif |
498 | Safefree (PL_savestack); |
1004 | Safefree (PL_savestack); |
499 | #if !PERL_VERSION_ATLEAST (5,9,0) |
1005 | #if !PERL_VERSION_ATLEAST (5,10,0) |
500 | Safefree (PL_retstack); |
1006 | Safefree (PL_retstack); |
501 | #endif |
1007 | #endif |
502 | } |
1008 | } |
503 | |
1009 | |
|
|
1010 | #define CORO_RSS \ |
|
|
1011 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
1012 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
1013 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
1014 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
1015 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
1016 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
1017 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
1018 | |
|
|
1019 | static size_t |
|
|
1020 | coro_rss (pTHX_ struct coro *coro) |
|
|
1021 | { |
|
|
1022 | size_t rss = sizeof (*coro); |
|
|
1023 | |
|
|
1024 | if (coro->mainstack) |
|
|
1025 | { |
|
|
1026 | if (coro->flags & CF_RUNNING) |
|
|
1027 | { |
|
|
1028 | #define SYM(sym) PL_ ## sym |
|
|
1029 | CORO_RSS; |
|
|
1030 | #undef SYM |
|
|
1031 | } |
|
|
1032 | else |
|
|
1033 | { |
|
|
1034 | #define SYM(sym) coro->slot->sym |
|
|
1035 | CORO_RSS; |
|
|
1036 | #undef SYM |
|
|
1037 | } |
|
|
1038 | } |
|
|
1039 | |
|
|
1040 | return rss; |
|
|
1041 | } |
|
|
1042 | |
|
|
1043 | /** coroutine stack handling ************************************************/ |
|
|
1044 | |
|
|
1045 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
1046 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
1047 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
1048 | |
|
|
1049 | /* apparently < 5.8.8 */ |
|
|
1050 | #ifndef MgPV_nolen_const |
|
|
1051 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
1052 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
1053 | (const char*)(mg)->mg_ptr) |
|
|
1054 | #endif |
|
|
1055 | |
|
|
1056 | /* |
|
|
1057 | * This overrides the default magic get method of %SIG elements. |
|
|
1058 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
1059 | * and instead of trying to save and restore the hash elements (extremely slow), |
|
|
1060 | * we just provide our own readback here. |
|
|
1061 | */ |
|
|
1062 | static int ecb_cold |
|
|
1063 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
1064 | { |
|
|
1065 | const char *s = MgPV_nolen_const (mg); |
|
|
1066 | |
|
|
1067 | if (*s == '_') |
|
|
1068 | { |
|
|
1069 | SV **svp = 0; |
|
|
1070 | |
|
|
1071 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1072 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1073 | |
|
|
1074 | if (svp) |
|
|
1075 | { |
|
|
1076 | SV *ssv; |
|
|
1077 | |
|
|
1078 | if (!*svp) |
|
|
1079 | ssv = &PL_sv_undef; |
|
|
1080 | else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */ |
|
|
1081 | ssv = sv_2mortal (newRV_inc (*svp)); |
|
|
1082 | else |
|
|
1083 | ssv = *svp; |
|
|
1084 | |
|
|
1085 | sv_setsv (sv, ssv); |
|
|
1086 | return 0; |
|
|
1087 | } |
|
|
1088 | } |
|
|
1089 | |
|
|
1090 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
1091 | } |
|
|
1092 | |
|
|
1093 | static int ecb_cold |
|
|
1094 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
1095 | { |
|
|
1096 | const char *s = MgPV_nolen_const (mg); |
|
|
1097 | |
|
|
1098 | if (*s == '_') |
|
|
1099 | { |
|
|
1100 | SV **svp = 0; |
|
|
1101 | |
|
|
1102 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1103 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1104 | |
|
|
1105 | if (svp) |
|
|
1106 | { |
|
|
1107 | SV *old = *svp; |
|
|
1108 | *svp = 0; |
|
|
1109 | SvREFCNT_dec (old); |
|
|
1110 | return 0; |
|
|
1111 | } |
|
|
1112 | } |
|
|
1113 | |
|
|
1114 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
1115 | } |
|
|
1116 | |
|
|
1117 | static int ecb_cold |
|
|
1118 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
1119 | { |
|
|
1120 | const char *s = MgPV_nolen_const (mg); |
|
|
1121 | |
|
|
1122 | if (*s == '_') |
|
|
1123 | { |
|
|
1124 | SV **svp = 0; |
|
|
1125 | |
|
|
1126 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1127 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1128 | |
|
|
1129 | if (svp) |
|
|
1130 | { |
|
|
1131 | SV *old = *svp; |
|
|
1132 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
|
|
1133 | SvREFCNT_dec (old); |
|
|
1134 | return 0; |
|
|
1135 | } |
|
|
1136 | } |
|
|
1137 | |
|
|
1138 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
1139 | } |
|
|
1140 | |
|
|
1141 | static void |
|
|
1142 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
1143 | { |
|
|
1144 | /* kind of mega-hacky, but works */ |
|
|
1145 | ta->next = ta->prev = (struct coro *)ta; |
|
|
1146 | } |
|
|
1147 | |
504 | static void |
1148 | static int |
505 | setup_coro (struct coro *coro) |
1149 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
1150 | { |
|
|
1151 | return 0; |
|
|
1152 | } |
|
|
1153 | |
|
|
1154 | static int |
|
|
1155 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
1156 | { |
|
|
1157 | return 1; |
|
|
1158 | } |
|
|
1159 | |
|
|
1160 | static UNOP init_perl_op; |
|
|
1161 | |
|
|
1162 | ecb_noinline static void /* noinline to keep it out of the transfer fast path */ |
|
|
1163 | init_perl (pTHX_ struct coro *coro) |
506 | { |
1164 | { |
507 | /* |
1165 | /* |
508 | * emulate part of the perl startup here. |
1166 | * emulate part of the perl startup here. |
509 | */ |
1167 | */ |
510 | |
|
|
511 | coro_init_stacks (); |
1168 | coro_init_stacks (aTHX); |
512 | |
1169 | |
|
|
1170 | PL_runops = RUNOPS_DEFAULT; |
513 | PL_curcop = &PL_compiling; |
1171 | PL_curcop = &PL_compiling; |
514 | PL_in_eval = EVAL_NULL; |
1172 | PL_in_eval = EVAL_NULL; |
|
|
1173 | PL_comppad = 0; |
|
|
1174 | PL_comppad_name = 0; |
|
|
1175 | PL_comppad_name_fill = 0; |
|
|
1176 | PL_comppad_name_floor = 0; |
515 | PL_curpm = 0; |
1177 | PL_curpm = 0; |
|
|
1178 | PL_curpad = 0; |
516 | PL_localizing = 0; |
1179 | PL_localizing = 0; |
517 | PL_dirty = 0; |
|
|
518 | PL_restartop = 0; |
1180 | PL_restartop = 0; |
|
|
1181 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
1182 | PL_parser = 0; |
|
|
1183 | #endif |
|
|
1184 | PL_hints = 0; |
|
|
1185 | |
|
|
1186 | /* recreate the die/warn hooks */ |
|
|
1187 | PL_diehook = SvREFCNT_inc (rv_diehook); |
|
|
1188 | PL_warnhook = SvREFCNT_inc (rv_warnhook); |
|
|
1189 | |
|
|
1190 | GvSV (PL_defgv) = newSV (0); |
|
|
1191 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
1192 | GvSV (PL_errgv) = newSV (0); |
|
|
1193 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
1194 | GvHV (PL_hintgv) = newHV (); |
|
|
1195 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
1196 | hv_magic (GvHV (PL_hintgv), 0, PERL_MAGIC_hints); |
|
|
1197 | #endif |
|
|
1198 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
1199 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
519 | |
1200 | |
520 | { |
1201 | { |
521 | dSP; |
1202 | dSP; |
522 | LOGOP myop; |
1203 | UNOP myop; |
523 | |
1204 | |
524 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
525 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
526 | |
|
|
527 | Zero (&myop, 1, LOGOP); |
1205 | Zero (&myop, 1, UNOP); |
528 | myop.op_next = Nullop; |
1206 | myop.op_next = Nullop; |
|
|
1207 | myop.op_type = OP_ENTERSUB; |
529 | myop.op_flags = OPf_WANT_VOID; |
1208 | myop.op_flags = OPf_WANT_VOID; |
530 | |
1209 | |
531 | PUSHMARK (SP); |
1210 | PUSHMARK (SP); |
532 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
1211 | PUSHs ((SV *)coro->startcv); |
533 | PUTBACK; |
1212 | PUTBACK; |
534 | PL_op = (OP *)&myop; |
1213 | PL_op = (OP *)&myop; |
535 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1214 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
536 | SPAGAIN; |
|
|
537 | } |
1215 | } |
538 | |
1216 | |
539 | ENTER; /* necessary e.g. for dounwind */ |
1217 | /* this newly created coroutine might be run on an existing cctx which most |
540 | } |
1218 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
1219 | */ |
|
|
1220 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
1221 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
1222 | slf_frame.destroy = 0; |
541 | |
1223 | |
|
|
1224 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
1225 | init_perl_op.op_next = PL_op; |
|
|
1226 | init_perl_op.op_type = OP_ENTERSUB; |
|
|
1227 | init_perl_op.op_ppaddr = pp_slf; |
|
|
1228 | /* no flags etc. required, as an init function won't be called */ |
|
|
1229 | |
|
|
1230 | PL_op = (OP *)&init_perl_op; |
|
|
1231 | |
|
|
1232 | /* copy throw, in case it was set before init_perl */ |
|
|
1233 | CORO_THROW = coro->except; |
|
|
1234 | |
|
|
1235 | SWAP_SVS_ENTER (coro); |
|
|
1236 | |
|
|
1237 | if (ecb_expect_false (enable_times)) |
|
|
1238 | { |
|
|
1239 | coro_times_update (); |
|
|
1240 | coro_times_sub (coro); |
|
|
1241 | } |
|
|
1242 | } |
|
|
1243 | |
542 | static void |
1244 | static void |
|
|
1245 | coro_unwind_stacks (pTHX) |
|
|
1246 | { |
|
|
1247 | if (!IN_DESTRUCT) |
|
|
1248 | { |
|
|
1249 | /* restore all saved variables and stuff */ |
|
|
1250 | LEAVE_SCOPE (0); |
|
|
1251 | assert (PL_tmps_floor == -1); |
|
|
1252 | |
|
|
1253 | /* free all temporaries */ |
|
|
1254 | FREETMPS; |
|
|
1255 | assert (PL_tmps_ix == -1); |
|
|
1256 | |
|
|
1257 | /* unwind all extra stacks */ |
|
|
1258 | POPSTACK_TO (PL_mainstack); |
|
|
1259 | |
|
|
1260 | /* unwind main stack */ |
|
|
1261 | dounwind (-1); |
|
|
1262 | } |
|
|
1263 | } |
|
|
1264 | |
|
|
1265 | static void |
|
|
1266 | destroy_perl (pTHX_ struct coro *coro) |
|
|
1267 | { |
|
|
1268 | SV *svf [9]; |
|
|
1269 | |
|
|
1270 | { |
|
|
1271 | SV *old_current = SvRV (coro_current); |
|
|
1272 | struct coro *current = SvSTATE (old_current); |
|
|
1273 | |
|
|
1274 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1275 | |
|
|
1276 | save_perl (aTHX_ current); |
|
|
1277 | |
|
|
1278 | /* this will cause transfer_check to croak on block*/ |
|
|
1279 | SvRV_set (coro_current, (SV *)coro->hv); |
|
|
1280 | |
|
|
1281 | load_perl (aTHX_ coro); |
|
|
1282 | |
|
|
1283 | /* restore swapped sv's */ |
|
|
1284 | SWAP_SVS_LEAVE (coro); |
|
|
1285 | |
|
|
1286 | coro_unwind_stacks (aTHX); |
|
|
1287 | |
|
|
1288 | coro_destruct_stacks (aTHX); |
|
|
1289 | |
|
|
1290 | /* now save some sv's to be free'd later */ |
|
|
1291 | svf [0] = GvSV (PL_defgv); |
|
|
1292 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1293 | svf [2] = GvSV (PL_errgv); |
|
|
1294 | svf [3] = (SV *)PL_defoutgv; |
|
|
1295 | svf [4] = PL_rs; |
|
|
1296 | svf [5] = GvSV (irsgv); |
|
|
1297 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1298 | svf [7] = PL_diehook; |
|
|
1299 | svf [8] = PL_warnhook; |
|
|
1300 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1301 | |
|
|
1302 | SvRV_set (coro_current, old_current); |
|
|
1303 | |
|
|
1304 | load_perl (aTHX_ current); |
|
|
1305 | } |
|
|
1306 | |
|
|
1307 | { |
|
|
1308 | unsigned int i; |
|
|
1309 | |
|
|
1310 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1311 | SvREFCNT_dec (svf [i]); |
|
|
1312 | |
|
|
1313 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1314 | SvREFCNT_dec (coro->rouse_cb); |
|
|
1315 | SvREFCNT_dec (coro->invoke_cb); |
|
|
1316 | SvREFCNT_dec (coro->invoke_av); |
|
|
1317 | SvREFCNT_dec (coro->on_enter_xs); |
|
|
1318 | SvREFCNT_dec (coro->on_leave_xs); |
|
|
1319 | } |
|
|
1320 | } |
|
|
1321 | |
|
|
1322 | ecb_inline void |
543 | free_coro_mortal () |
1323 | free_coro_mortal (pTHX) |
544 | { |
1324 | { |
545 | if (coro_mortal) |
1325 | if (ecb_expect_true (coro_mortal)) |
546 | { |
1326 | { |
547 | SvREFCNT_dec (coro_mortal); |
1327 | SvREFCNT_dec ((SV *)coro_mortal); |
548 | coro_mortal = 0; |
1328 | coro_mortal = 0; |
549 | } |
1329 | } |
550 | } |
1330 | } |
551 | |
1331 | |
552 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
553 | static void NOINLINE |
|
|
554 | prepare_cctx (coro_cctx *cctx) |
|
|
555 | { |
|
|
556 | dSP; |
|
|
557 | LOGOP myop; |
|
|
558 | |
|
|
559 | Zero (&myop, 1, LOGOP); |
|
|
560 | myop.op_next = PL_op; |
|
|
561 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
|
|
562 | |
|
|
563 | PUSHMARK (SP); |
|
|
564 | EXTEND (SP, 2); |
|
|
565 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
|
|
566 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
|
|
567 | PUTBACK; |
|
|
568 | PL_op = (OP *)&myop; |
|
|
569 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
570 | SPAGAIN; |
|
|
571 | } |
|
|
572 | |
|
|
573 | static void |
1332 | static int |
574 | coro_run (void *arg) |
1333 | runops_trace (pTHX) |
575 | { |
1334 | { |
576 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
1335 | COP *oldcop = 0; |
577 | UNLOCK; |
1336 | int oldcxix = -2; |
578 | |
1337 | |
579 | /* |
1338 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
580 | * this is a _very_ stripped down perl interpreter ;) |
1339 | { |
581 | */ |
1340 | PERL_ASYNC_CHECK (); |
|
|
1341 | |
|
|
1342 | if (cctx_current->flags & CC_TRACE_ALL) |
|
|
1343 | { |
|
|
1344 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
|
|
1345 | { |
|
|
1346 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
1347 | SV **bot, **top; |
|
|
1348 | AV *av = newAV (); /* return values */ |
|
|
1349 | SV **cb; |
|
|
1350 | dSP; |
|
|
1351 | |
|
|
1352 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
1353 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
1354 | if (isGV (gv)) |
|
|
1355 | gv_efullname3 (fullname, gv, 0); |
|
|
1356 | |
|
|
1357 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
1358 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
1359 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
1360 | : bot; |
|
|
1361 | |
|
|
1362 | av_extend (av, top - bot); |
|
|
1363 | while (bot < top) |
|
|
1364 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
|
|
1365 | |
|
|
1366 | PL_runops = RUNOPS_DEFAULT; |
|
|
1367 | ENTER; |
|
|
1368 | SAVETMPS; |
|
|
1369 | EXTEND (SP, 3); |
|
|
1370 | PUSHMARK (SP); |
|
|
1371 | PUSHs (&PL_sv_no); |
|
|
1372 | PUSHs (fullname); |
|
|
1373 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
1374 | PUTBACK; |
|
|
1375 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
1376 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1377 | SPAGAIN; |
|
|
1378 | FREETMPS; |
|
|
1379 | LEAVE; |
|
|
1380 | PL_runops = runops_trace; |
|
|
1381 | } |
|
|
1382 | |
|
|
1383 | if (oldcop != PL_curcop) |
|
|
1384 | { |
|
|
1385 | oldcop = PL_curcop; |
|
|
1386 | |
|
|
1387 | if (PL_curcop != &PL_compiling) |
|
|
1388 | { |
|
|
1389 | SV **cb; |
|
|
1390 | |
|
|
1391 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB && cxstack_ix >= 0) |
|
|
1392 | { |
|
|
1393 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
1394 | |
|
|
1395 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
1396 | { |
|
|
1397 | dSP; |
|
|
1398 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
1399 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
1400 | |
|
|
1401 | if (isGV (gv)) |
|
|
1402 | gv_efullname3 (fullname, gv, 0); |
|
|
1403 | |
|
|
1404 | PL_runops = RUNOPS_DEFAULT; |
|
|
1405 | ENTER; |
|
|
1406 | SAVETMPS; |
|
|
1407 | EXTEND (SP, 3); |
|
|
1408 | PUSHMARK (SP); |
|
|
1409 | PUSHs (&PL_sv_yes); |
|
|
1410 | PUSHs (fullname); |
|
|
1411 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
1412 | PUTBACK; |
|
|
1413 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
1414 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1415 | SPAGAIN; |
|
|
1416 | FREETMPS; |
|
|
1417 | LEAVE; |
|
|
1418 | PL_runops = runops_trace; |
|
|
1419 | } |
|
|
1420 | |
|
|
1421 | oldcxix = cxstack_ix; |
|
|
1422 | } |
|
|
1423 | |
|
|
1424 | if (cctx_current->flags & CC_TRACE_LINE) |
|
|
1425 | { |
|
|
1426 | dSP; |
|
|
1427 | |
|
|
1428 | PL_runops = RUNOPS_DEFAULT; |
|
|
1429 | ENTER; |
|
|
1430 | SAVETMPS; |
|
|
1431 | EXTEND (SP, 3); |
|
|
1432 | PL_runops = RUNOPS_DEFAULT; |
|
|
1433 | PUSHMARK (SP); |
|
|
1434 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
1435 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
1436 | PUTBACK; |
|
|
1437 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
1438 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1439 | SPAGAIN; |
|
|
1440 | FREETMPS; |
|
|
1441 | LEAVE; |
|
|
1442 | PL_runops = runops_trace; |
|
|
1443 | } |
|
|
1444 | } |
|
|
1445 | } |
|
|
1446 | } |
|
|
1447 | } |
|
|
1448 | |
|
|
1449 | TAINT_NOT; |
|
|
1450 | return 0; |
|
|
1451 | } |
|
|
1452 | |
|
|
1453 | static struct CoroSLF cctx_ssl_frame; |
|
|
1454 | |
|
|
1455 | static void |
|
|
1456 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1457 | { |
|
|
1458 | ta->prev = 0; |
|
|
1459 | } |
|
|
1460 | |
|
|
1461 | static int |
|
|
1462 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1463 | { |
|
|
1464 | *frame = cctx_ssl_frame; |
|
|
1465 | |
|
|
1466 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1467 | } |
|
|
1468 | |
|
|
1469 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
|
|
1470 | static void ecb_noinline |
|
|
1471 | cctx_prepare (pTHX) |
|
|
1472 | { |
582 | PL_top_env = &PL_start_env; |
1473 | PL_top_env = &PL_start_env; |
583 | |
1474 | |
|
|
1475 | if (cctx_current->flags & CC_TRACE) |
|
|
1476 | PL_runops = runops_trace; |
|
|
1477 | |
|
|
1478 | /* we already must be executing an SLF op, there is no other valid way |
|
|
1479 | * that can lead to creation of a new cctx */ |
|
|
1480 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1481 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
|
|
1482 | |
|
|
1483 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
|
|
1484 | cctx_ssl_frame = slf_frame; |
|
|
1485 | |
|
|
1486 | slf_frame.prepare = slf_prepare_set_stacklevel; |
|
|
1487 | slf_frame.check = slf_check_set_stacklevel; |
|
|
1488 | } |
|
|
1489 | |
|
|
1490 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1491 | ecb_inline void |
|
|
1492 | transfer_tail (pTHX) |
|
|
1493 | { |
|
|
1494 | free_coro_mortal (aTHX); |
|
|
1495 | } |
|
|
1496 | |
|
|
1497 | /* try to exit the same way perl's main function would do */ |
|
|
1498 | /* we do not bother resetting the environment or other things *7 |
|
|
1499 | /* that are not, uhm, essential */ |
|
|
1500 | /* this obviously also doesn't work when perl is embedded */ |
|
|
1501 | static void ecb_noinline ecb_cold |
|
|
1502 | perlish_exit (pTHX) |
|
|
1503 | { |
|
|
1504 | int exitstatus = perl_destruct (PL_curinterp); |
|
|
1505 | perl_free (PL_curinterp); |
|
|
1506 | exit (exitstatus); |
|
|
1507 | } |
|
|
1508 | |
|
|
1509 | /* |
|
|
1510 | * this is a _very_ stripped down perl interpreter ;) |
|
|
1511 | */ |
|
|
1512 | static void |
|
|
1513 | cctx_run (void *arg) |
|
|
1514 | { |
|
|
1515 | #ifdef USE_ITHREADS |
|
|
1516 | # if CORO_PTHREAD |
|
|
1517 | PERL_SET_CONTEXT (coro_thx); |
|
|
1518 | # endif |
|
|
1519 | #endif |
|
|
1520 | { |
|
|
1521 | dTHX; |
|
|
1522 | |
|
|
1523 | /* normally we would need to skip the entersub here */ |
|
|
1524 | /* not doing so will re-execute it, which is exactly what we want */ |
|
|
1525 | /* PL_nop = PL_nop->op_next */ |
|
|
1526 | |
584 | /* inject call to cctx_init */ |
1527 | /* inject a fake subroutine call to cctx_init */ |
585 | prepare_cctx ((coro_cctx *)arg); |
1528 | cctx_prepare (aTHX); |
586 | |
1529 | |
|
|
1530 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1531 | transfer_tail (aTHX); |
|
|
1532 | |
587 | /* somebody will hit me for both perl_run and PL_restartop */ |
1533 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
588 | PL_restartop = PL_op; |
1534 | PL_restartop = PL_op; |
589 | perl_run (PL_curinterp); |
1535 | perl_run (PL_curinterp); |
|
|
1536 | /* |
|
|
1537 | * Unfortunately, there is no way to get at the return values of the |
|
|
1538 | * coro body here, as perl_run destroys these. Likewise, we cannot catch |
|
|
1539 | * runtime errors here, as this is just a random interpreter, not a thread. |
|
|
1540 | */ |
590 | |
1541 | |
591 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
1542 | /* |
592 | abort (); |
1543 | * If perl-run returns we assume exit() was being called or the coro |
|
|
1544 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
1545 | * reason for perl_run to return. We try to mimic whatever perl is normally |
|
|
1546 | * doing in that case. YMMV. |
|
|
1547 | */ |
|
|
1548 | perlish_exit (aTHX); |
|
|
1549 | } |
593 | } |
1550 | } |
594 | |
1551 | |
595 | static coro_cctx * |
1552 | static coro_cctx * |
596 | cctx_new () |
1553 | cctx_new (void) |
597 | { |
1554 | { |
598 | coro_cctx *cctx; |
1555 | coro_cctx *cctx; |
599 | |
1556 | |
600 | ++cctx_count; |
1557 | ++cctx_count; |
601 | |
|
|
602 | Newz (0, cctx, 1, coro_cctx); |
1558 | New (0, cctx, 1, coro_cctx); |
603 | |
1559 | |
604 | #if HAVE_MMAP |
1560 | cctx->gen = cctx_gen; |
|
|
1561 | cctx->flags = 0; |
|
|
1562 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
605 | |
1563 | |
606 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
1564 | return cctx; |
607 | /* mmap supposedly does allocate-on-write for us */ |
1565 | } |
608 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
609 | |
1566 | |
610 | if (cctx->sptr == (void *)-1) |
1567 | /* create a new cctx only suitable as source */ |
|
|
1568 | static coro_cctx * |
|
|
1569 | cctx_new_empty (void) |
|
|
1570 | { |
|
|
1571 | coro_cctx *cctx = cctx_new (); |
|
|
1572 | |
|
|
1573 | cctx->stack.sptr = 0; |
|
|
1574 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1575 | |
|
|
1576 | return cctx; |
|
|
1577 | } |
|
|
1578 | |
|
|
1579 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1580 | static coro_cctx * |
|
|
1581 | cctx_new_run (void) |
|
|
1582 | { |
|
|
1583 | coro_cctx *cctx = cctx_new (); |
|
|
1584 | |
|
|
1585 | if (!coro_stack_alloc (&cctx->stack, cctx_stacksize)) |
611 | { |
1586 | { |
612 | perror ("FATAL: unable to mmap stack for coroutine"); |
1587 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
613 | _exit (EXIT_FAILURE); |
1588 | _exit (EXIT_FAILURE); |
614 | } |
1589 | } |
615 | |
1590 | |
616 | # if STACKGUARD |
|
|
617 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
618 | # endif |
|
|
619 | |
|
|
620 | #else |
|
|
621 | |
|
|
622 | cctx->ssize = STACKSIZE * (long)sizeof (long); |
|
|
623 | New (0, cctx->sptr, STACKSIZE, long); |
|
|
624 | |
|
|
625 | if (!cctx->sptr) |
|
|
626 | { |
|
|
627 | perror ("FATAL: unable to malloc stack for coroutine"); |
|
|
628 | _exit (EXIT_FAILURE); |
|
|
629 | } |
|
|
630 | |
|
|
631 | #endif |
|
|
632 | |
|
|
633 | #if USE_VALGRIND |
|
|
634 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ( |
|
|
635 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
|
|
636 | cctx->ssize + (char *)cctx->sptr |
|
|
637 | ); |
|
|
638 | #endif |
|
|
639 | |
|
|
640 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
1591 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze); |
641 | |
1592 | |
642 | return cctx; |
1593 | return cctx; |
643 | } |
1594 | } |
644 | |
1595 | |
645 | static void |
1596 | static void |
646 | cctx_destroy (coro_cctx *cctx) |
1597 | cctx_destroy (coro_cctx *cctx) |
647 | { |
1598 | { |
648 | if (!cctx) |
1599 | if (!cctx) |
649 | return; |
1600 | return; |
650 | |
1601 | |
|
|
1602 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); |
|
|
1603 | |
651 | --cctx_count; |
1604 | --cctx_count; |
|
|
1605 | coro_destroy (&cctx->cctx); |
652 | |
1606 | |
653 | #if USE_VALGRIND |
1607 | coro_stack_free (&cctx->stack); |
654 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
655 | #endif |
|
|
656 | |
|
|
657 | #if HAVE_MMAP |
|
|
658 | munmap (cctx->sptr, cctx->ssize); |
|
|
659 | #else |
|
|
660 | Safefree (cctx->sptr); |
|
|
661 | #endif |
|
|
662 | |
1608 | |
663 | Safefree (cctx); |
1609 | Safefree (cctx); |
664 | } |
1610 | } |
665 | |
1611 | |
|
|
1612 | /* wether this cctx should be destructed */ |
|
|
1613 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
|
|
1614 | |
666 | static coro_cctx * |
1615 | static coro_cctx * |
667 | cctx_get () |
1616 | cctx_get (pTHX) |
668 | { |
1617 | { |
669 | coro_cctx *cctx; |
1618 | while (ecb_expect_true (cctx_first)) |
670 | |
|
|
671 | if (cctx_first) |
|
|
672 | { |
1619 | { |
673 | cctx = cctx_first; |
1620 | coro_cctx *cctx = cctx_first; |
674 | cctx_first = cctx->next; |
1621 | cctx_first = cctx->next; |
675 | --cctx_idle; |
1622 | --cctx_idle; |
676 | } |
1623 | |
677 | else |
1624 | if (ecb_expect_true (!CCTX_EXPIRED (cctx))) |
678 | { |
1625 | return cctx; |
679 | cctx = cctx_new (); |
1626 | |
680 | PL_op = PL_op->op_next; |
1627 | cctx_destroy (cctx); |
681 | } |
1628 | } |
682 | |
1629 | |
683 | return cctx; |
1630 | return cctx_new_run (); |
684 | } |
1631 | } |
685 | |
1632 | |
686 | static void |
1633 | static void |
687 | cctx_put (coro_cctx *cctx) |
1634 | cctx_put (coro_cctx *cctx) |
688 | { |
1635 | { |
|
|
1636 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr)); |
|
|
1637 | |
689 | /* free another cctx if overlimit */ |
1638 | /* free another cctx if overlimit */ |
690 | if (cctx_idle >= MAX_IDLE_CCTX) |
1639 | if (ecb_expect_false (cctx_idle >= cctx_max_idle)) |
691 | { |
1640 | { |
692 | coro_cctx *first = cctx_first; |
1641 | coro_cctx *first = cctx_first; |
693 | cctx_first = first->next; |
1642 | cctx_first = first->next; |
694 | --cctx_idle; |
1643 | --cctx_idle; |
695 | |
1644 | |
696 | assert (!first->inuse); |
|
|
697 | cctx_destroy (first); |
1645 | cctx_destroy (first); |
698 | } |
1646 | } |
699 | |
1647 | |
700 | ++cctx_idle; |
1648 | ++cctx_idle; |
701 | cctx->next = cctx_first; |
1649 | cctx->next = cctx_first; |
702 | cctx_first = cctx; |
1650 | cctx_first = cctx; |
703 | } |
1651 | } |
704 | |
1652 | |
705 | /* never call directly, always through the coro_state_transfer global variable */ |
1653 | /** coroutine switching *****************************************************/ |
706 | static void NOINLINE |
1654 | |
|
|
1655 | static void |
707 | transfer (struct coro *prev, struct coro *next) |
1656 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1657 | { |
|
|
1658 | /* TODO: throwing up here is considered harmful */ |
|
|
1659 | |
|
|
1660 | if (ecb_expect_true (prev != next)) |
|
|
1661 | { |
|
|
1662 | if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1663 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
|
|
1664 | |
|
|
1665 | if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED))) |
|
|
1666 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
|
|
1667 | |
|
|
1668 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
1669 | if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING)) |
|
|
1670 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1671 | #endif |
|
|
1672 | } |
|
|
1673 | } |
|
|
1674 | |
|
|
1675 | /* always use the TRANSFER macro */ |
|
|
1676 | static void ecb_noinline /* noinline so we have a fixed stackframe */ |
|
|
1677 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
708 | { |
1678 | { |
709 | dSTACKLEVEL; |
1679 | dSTACKLEVEL; |
710 | |
1680 | |
711 | /* sometimes transfer is only called to set idle_sp */ |
1681 | /* sometimes transfer is only called to set idle_sp */ |
712 | if (!next) |
1682 | if (ecb_expect_false (!prev)) |
713 | { |
1683 | { |
714 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1684 | cctx_current->idle_sp = STACKLEVEL; |
715 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1685 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
716 | } |
|
|
717 | else if (prev != next) |
|
|
718 | { |
1686 | } |
|
|
1687 | else if (ecb_expect_true (prev != next)) |
|
|
1688 | { |
719 | coro_cctx *prev__cctx; |
1689 | coro_cctx *cctx_prev; |
720 | |
1690 | |
721 | if (prev->flags & CF_NEW) |
1691 | if (ecb_expect_false (prev->flags & CF_NEW)) |
722 | { |
1692 | { |
723 | /* create a new empty context */ |
1693 | /* create a new empty/source context */ |
724 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
725 | prev->cctx->inuse = 1; |
|
|
726 | prev->flags &= ~CF_NEW; |
1694 | prev->flags &= ~CF_NEW; |
727 | prev->flags |= CF_RUNNING; |
1695 | prev->flags |= CF_RUNNING; |
728 | } |
1696 | } |
729 | |
1697 | |
730 | /*TODO: must not croak here */ |
|
|
731 | if (!prev->flags & CF_RUNNING) |
|
|
732 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
733 | |
|
|
734 | if (next->flags & CF_RUNNING) |
|
|
735 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
736 | |
|
|
737 | if (next->flags & CF_DESTROYED) |
|
|
738 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
739 | |
|
|
740 | prev->flags &= ~CF_RUNNING; |
1698 | prev->flags &= ~CF_RUNNING; |
741 | next->flags |= CF_RUNNING; |
1699 | next->flags |= CF_RUNNING; |
742 | |
1700 | |
743 | LOCK; |
1701 | /* first get rid of the old state */ |
|
|
1702 | save_perl (aTHX_ prev); |
744 | |
1703 | |
745 | if (next->flags & CF_NEW) |
1704 | if (ecb_expect_false (next->flags & CF_NEW)) |
746 | { |
1705 | { |
747 | /* need to start coroutine */ |
1706 | /* need to start coroutine */ |
748 | next->flags &= ~CF_NEW; |
1707 | next->flags &= ~CF_NEW; |
749 | /* first get rid of the old state */ |
|
|
750 | save_perl (prev); |
|
|
751 | /* setup coroutine call */ |
1708 | /* setup coroutine call */ |
752 | setup_coro (next); |
1709 | init_perl (aTHX_ next); |
753 | /* need a new stack */ |
|
|
754 | assert (!next->cctx); |
|
|
755 | } |
1710 | } |
756 | else |
1711 | else |
|
|
1712 | load_perl (aTHX_ next); |
|
|
1713 | |
|
|
1714 | /* possibly untie and reuse the cctx */ |
|
|
1715 | if (ecb_expect_true ( |
|
|
1716 | cctx_current->idle_sp == STACKLEVEL |
|
|
1717 | && !(cctx_current->flags & CC_TRACE) |
|
|
1718 | && !force_cctx |
|
|
1719 | )) |
757 | { |
1720 | { |
758 | /* coroutine already started */ |
1721 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
759 | save_perl (prev); |
1722 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
760 | load_perl (next); |
1723 | |
|
|
1724 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
|
|
1725 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
|
|
1726 | if (ecb_expect_false (CCTX_EXPIRED (cctx_current))) |
|
|
1727 | if (ecb_expect_true (!next->cctx)) |
|
|
1728 | next->cctx = cctx_get (aTHX); |
|
|
1729 | |
|
|
1730 | cctx_put (cctx_current); |
761 | } |
1731 | } |
|
|
1732 | else |
|
|
1733 | prev->cctx = cctx_current; |
762 | |
1734 | |
763 | prev__cctx = prev->cctx; |
1735 | ++next->usecount; |
764 | |
1736 | |
765 | /* possibly "free" the cctx */ |
1737 | cctx_prev = cctx_current; |
766 | if (prev__cctx->idle_sp == STACKLEVEL) |
1738 | cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
|
|
1739 | |
|
|
1740 | next->cctx = 0; |
|
|
1741 | |
|
|
1742 | if (ecb_expect_false (cctx_prev != cctx_current)) |
767 | { |
1743 | { |
768 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1744 | cctx_prev->top_env = PL_top_env; |
769 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1745 | PL_top_env = cctx_current->top_env; |
770 | |
1746 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
771 | prev->cctx = 0; |
|
|
772 | |
|
|
773 | cctx_put (prev__cctx); |
|
|
774 | prev__cctx->inuse = 0; |
|
|
775 | } |
1747 | } |
776 | |
1748 | |
777 | if (!next->cctx) |
1749 | transfer_tail (aTHX); |
778 | { |
|
|
779 | next->cctx = cctx_get (); |
|
|
780 | assert (!next->cctx->inuse); |
|
|
781 | next->cctx->inuse = 1; |
|
|
782 | } |
|
|
783 | |
|
|
784 | if (prev__cctx != next->cctx) |
|
|
785 | { |
|
|
786 | prev__cctx->top_env = PL_top_env; |
|
|
787 | PL_top_env = next->cctx->top_env; |
|
|
788 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
|
|
789 | } |
|
|
790 | |
|
|
791 | free_coro_mortal (); |
|
|
792 | UNLOCK; |
|
|
793 | } |
1750 | } |
794 | } |
1751 | } |
795 | |
1752 | |
796 | struct transfer_args |
1753 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
797 | { |
|
|
798 | struct coro *prev, *next; |
|
|
799 | }; |
|
|
800 | |
|
|
801 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next) |
1754 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
|
|
1755 | |
|
|
1756 | /** high level stuff ********************************************************/ |
|
|
1757 | |
|
|
1758 | /* this function is actually Coro, not Coro::State, but we call it from here */ |
|
|
1759 | /* because it is convenient - but it hasn't been declared yet for that reason */ |
|
|
1760 | static void |
|
|
1761 | coro_call_on_destroy (pTHX_ struct coro *coro); |
|
|
1762 | |
|
|
1763 | static void |
|
|
1764 | coro_state_destroy (pTHX_ struct coro *coro) |
|
|
1765 | { |
|
|
1766 | if (coro->flags & CF_ZOMBIE) |
|
|
1767 | return; |
|
|
1768 | |
|
|
1769 | slf_destroy (aTHX_ coro); |
|
|
1770 | |
|
|
1771 | coro->flags |= CF_ZOMBIE; |
|
|
1772 | |
|
|
1773 | if (coro->flags & CF_READY) |
|
|
1774 | { |
|
|
1775 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1776 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1777 | --coro_nready; |
|
|
1778 | } |
|
|
1779 | else |
|
|
1780 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
|
|
1781 | |
|
|
1782 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1783 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1784 | if (coro == coro_first) coro_first = coro->next; |
|
|
1785 | |
|
|
1786 | if (coro->mainstack |
|
|
1787 | && coro->mainstack != main_mainstack |
|
|
1788 | && coro->slot |
|
|
1789 | && !PL_dirty) |
|
|
1790 | destroy_perl (aTHX_ coro); |
|
|
1791 | |
|
|
1792 | cctx_destroy (coro->cctx); |
|
|
1793 | SvREFCNT_dec (coro->startcv); |
|
|
1794 | SvREFCNT_dec (coro->args); |
|
|
1795 | SvREFCNT_dec (coro->swap_sv); |
|
|
1796 | SvREFCNT_dec (CORO_THROW); |
|
|
1797 | |
|
|
1798 | coro_call_on_destroy (aTHX_ coro); |
|
|
1799 | |
|
|
1800 | /* more destruction mayhem in coro_state_free */ |
|
|
1801 | } |
802 | |
1802 | |
803 | static int |
1803 | static int |
804 | coro_state_destroy (struct coro *coro) |
|
|
805 | { |
|
|
806 | if (coro->refcnt--) |
|
|
807 | return 0; |
|
|
808 | |
|
|
809 | if (coro->flags & CF_DESTROYED) |
|
|
810 | return 0; |
|
|
811 | |
|
|
812 | coro->flags |= CF_DESTROYED; |
|
|
813 | |
|
|
814 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
815 | { |
|
|
816 | assert (!(coro->flags & CF_RUNNING)); |
|
|
817 | |
|
|
818 | struct coro temp; |
|
|
819 | Zero (&temp, 1, struct coro); |
|
|
820 | temp.save = CORO_SAVE_ALL; |
|
|
821 | |
|
|
822 | if (coro->flags & CF_RUNNING) |
|
|
823 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
824 | |
|
|
825 | save_perl (&temp); |
|
|
826 | load_perl (coro); |
|
|
827 | |
|
|
828 | coro_destroy_stacks (); |
|
|
829 | |
|
|
830 | load_perl (&temp); /* this will get rid of defsv etc.. */ |
|
|
831 | |
|
|
832 | coro->mainstack = 0; |
|
|
833 | } |
|
|
834 | |
|
|
835 | cctx_destroy (coro->cctx); |
|
|
836 | SvREFCNT_dec (coro->args); |
|
|
837 | |
|
|
838 | return 1; |
|
|
839 | } |
|
|
840 | |
|
|
841 | static int |
|
|
842 | coro_state_clear (pTHX_ SV *sv, MAGIC *mg) |
1804 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
843 | { |
1805 | { |
844 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1806 | struct coro *coro = (struct coro *)mg->mg_ptr; |
845 | mg->mg_ptr = 0; |
1807 | mg->mg_ptr = 0; |
846 | |
1808 | |
847 | coro_state_destroy (coro); |
1809 | coro_state_destroy (aTHX_ coro); |
|
|
1810 | SvREFCNT_dec (coro->on_destroy); |
|
|
1811 | SvREFCNT_dec (coro->status); |
848 | |
1812 | |
849 | if (!coro->refcnt) |
|
|
850 | Safefree (coro); |
1813 | Safefree (coro); |
851 | |
1814 | |
852 | return 0; |
1815 | return 0; |
853 | } |
1816 | } |
854 | |
1817 | |
855 | static int |
1818 | static int ecb_cold |
856 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1819 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
857 | { |
1820 | { |
858 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1821 | /* called when perl clones the current process the slow way (windows process emulation) */ |
859 | |
1822 | /* WE SIMply nuke the pointers in the copy, causing perl to croak */ |
860 | ++coro->refcnt; |
1823 | mg->mg_ptr = 0; |
|
|
1824 | mg->mg_virtual = 0; |
861 | |
1825 | |
862 | return 0; |
1826 | return 0; |
863 | } |
1827 | } |
864 | |
1828 | |
865 | static MGVTBL coro_state_vtbl = { |
1829 | static MGVTBL coro_state_vtbl = { |
866 | 0, 0, 0, 0, |
1830 | 0, 0, 0, 0, |
867 | coro_state_clear, |
1831 | coro_state_free, |
868 | 0, |
1832 | 0, |
869 | #ifdef MGf_DUP |
1833 | #ifdef MGf_DUP |
870 | coro_state_dup, |
1834 | coro_state_dup, |
871 | #else |
1835 | #else |
872 | # define MGf_DUP 0 |
1836 | # define MGf_DUP 0 |
873 | #endif |
1837 | #endif |
874 | }; |
1838 | }; |
875 | |
1839 | |
876 | static struct coro * |
|
|
877 | SvSTATE (SV *coro) |
|
|
878 | { |
|
|
879 | HV *stash; |
|
|
880 | MAGIC *mg; |
|
|
881 | |
|
|
882 | if (SvROK (coro)) |
|
|
883 | coro = SvRV (coro); |
|
|
884 | |
|
|
885 | stash = SvSTASH (coro); |
|
|
886 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
887 | { |
|
|
888 | /* very slow, but rare, check */ |
|
|
889 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
890 | croak ("Coro::State object required"); |
|
|
891 | } |
|
|
892 | |
|
|
893 | mg = SvMAGIC (coro); |
|
|
894 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
895 | return (struct coro *)mg->mg_ptr; |
|
|
896 | } |
|
|
897 | |
|
|
898 | static void |
1840 | static void |
899 | prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1841 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
900 | { |
1842 | { |
901 | ta->prev = SvSTATE (prev_sv); |
1843 | ta->prev = SvSTATE (prev_sv); |
902 | ta->next = SvSTATE (next_sv); |
1844 | ta->next = SvSTATE (next_sv); |
|
|
1845 | TRANSFER_CHECK (*ta); |
903 | } |
1846 | } |
904 | |
1847 | |
905 | static void |
1848 | static void |
906 | api_transfer (SV *prev_sv, SV *next_sv) |
1849 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
907 | { |
1850 | { |
908 | struct transfer_args ta; |
1851 | struct coro_transfer_args ta; |
909 | |
1852 | |
910 | prepare_transfer (&ta, prev_sv, next_sv); |
1853 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
911 | TRANSFER (ta); |
1854 | TRANSFER (ta, 1); |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | /** Coro ********************************************************************/ |
|
|
1858 | |
|
|
1859 | ecb_inline void |
|
|
1860 | coro_enq (pTHX_ struct coro *coro) |
|
|
1861 | { |
|
|
1862 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
|
|
1863 | |
|
|
1864 | SvREFCNT_inc_NN (coro->hv); |
|
|
1865 | |
|
|
1866 | coro->next_ready = 0; |
|
|
1867 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1868 | ready [1] = coro; |
|
|
1869 | } |
|
|
1870 | |
|
|
1871 | ecb_inline struct coro * |
|
|
1872 | coro_deq (pTHX) |
|
|
1873 | { |
|
|
1874 | int prio; |
|
|
1875 | |
|
|
1876 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
|
|
1877 | { |
|
|
1878 | struct coro **ready = coro_ready [prio]; |
|
|
1879 | |
|
|
1880 | if (ready [0]) |
|
|
1881 | { |
|
|
1882 | struct coro *coro = ready [0]; |
|
|
1883 | ready [0] = coro->next_ready; |
|
|
1884 | return coro; |
|
|
1885 | } |
|
|
1886 | } |
|
|
1887 | |
|
|
1888 | return 0; |
|
|
1889 | } |
|
|
1890 | |
|
|
1891 | static void |
|
|
1892 | invoke_sv_ready_hook_helper (void) |
|
|
1893 | { |
|
|
1894 | dTHX; |
|
|
1895 | dSP; |
|
|
1896 | |
|
|
1897 | ENTER; |
|
|
1898 | SAVETMPS; |
|
|
1899 | |
|
|
1900 | PUSHMARK (SP); |
|
|
1901 | PUTBACK; |
|
|
1902 | call_sv (coro_readyhook, G_VOID | G_DISCARD); |
|
|
1903 | |
|
|
1904 | FREETMPS; |
|
|
1905 | LEAVE; |
912 | } |
1906 | } |
913 | |
1907 | |
914 | static int |
1908 | static int |
915 | api_save (SV *coro_sv, int new_save) |
1909 | api_ready (pTHX_ SV *coro_sv) |
916 | { |
1910 | { |
917 | struct coro *coro = SvSTATE (coro_sv); |
1911 | struct coro *coro = SvSTATE (coro_sv); |
918 | int old_save = coro->save; |
|
|
919 | |
|
|
920 | if (new_save >= 0) |
|
|
921 | coro->save = new_save; |
|
|
922 | |
|
|
923 | return old_save; |
|
|
924 | } |
|
|
925 | |
|
|
926 | /** Coro ********************************************************************/ |
|
|
927 | |
|
|
928 | #define PRIO_MAX 3 |
|
|
929 | #define PRIO_HIGH 1 |
|
|
930 | #define PRIO_NORMAL 0 |
|
|
931 | #define PRIO_LOW -1 |
|
|
932 | #define PRIO_IDLE -3 |
|
|
933 | #define PRIO_MIN -4 |
|
|
934 | |
|
|
935 | /* for Coro.pm */ |
|
|
936 | static SV *coro_current; |
|
|
937 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
938 | static int coro_nready; |
|
|
939 | |
|
|
940 | static void |
|
|
941 | coro_enq (SV *coro_sv) |
|
|
942 | { |
|
|
943 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
|
|
944 | coro_nready++; |
|
|
945 | } |
|
|
946 | |
|
|
947 | static SV * |
|
|
948 | coro_deq (int min_prio) |
|
|
949 | { |
|
|
950 | int prio = PRIO_MAX - PRIO_MIN; |
|
|
951 | |
|
|
952 | min_prio -= PRIO_MIN; |
|
|
953 | if (min_prio < 0) |
|
|
954 | min_prio = 0; |
|
|
955 | |
|
|
956 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
|
|
957 | if (AvFILLp (coro_ready [prio]) >= 0) |
|
|
958 | { |
|
|
959 | coro_nready--; |
|
|
960 | return av_shift (coro_ready [prio]); |
|
|
961 | } |
|
|
962 | |
|
|
963 | return 0; |
|
|
964 | } |
|
|
965 | |
|
|
966 | static int |
|
|
967 | api_ready (SV *coro_sv) |
|
|
968 | { |
|
|
969 | struct coro *coro; |
|
|
970 | |
|
|
971 | if (SvROK (coro_sv)) |
|
|
972 | coro_sv = SvRV (coro_sv); |
|
|
973 | |
|
|
974 | coro = SvSTATE (coro_sv); |
|
|
975 | |
1912 | |
976 | if (coro->flags & CF_READY) |
1913 | if (coro->flags & CF_READY) |
977 | return 0; |
1914 | return 0; |
978 | |
1915 | |
979 | coro->flags |= CF_READY; |
1916 | coro->flags |= CF_READY; |
980 | |
1917 | |
981 | LOCK; |
1918 | coro_enq (aTHX_ coro); |
982 | coro_enq (SvREFCNT_inc (coro_sv)); |
1919 | |
983 | UNLOCK; |
1920 | if (!coro_nready++) |
|
|
1921 | if (coroapi.readyhook) |
|
|
1922 | coroapi.readyhook (); |
984 | |
1923 | |
985 | return 1; |
1924 | return 1; |
986 | } |
1925 | } |
987 | |
1926 | |
988 | static int |
1927 | static int |
989 | api_is_ready (SV *coro_sv) |
1928 | api_is_ready (pTHX_ SV *coro_sv) |
990 | { |
1929 | { |
991 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1930 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
992 | } |
1931 | } |
993 | |
1932 | |
|
|
1933 | /* expects to own a reference to next->hv */ |
|
|
1934 | ecb_inline void |
|
|
1935 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
|
|
1936 | { |
|
|
1937 | SV *prev_sv = SvRV (coro_current); |
|
|
1938 | |
|
|
1939 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1940 | ta->next = next; |
|
|
1941 | |
|
|
1942 | TRANSFER_CHECK (*ta); |
|
|
1943 | |
|
|
1944 | SvRV_set (coro_current, (SV *)next->hv); |
|
|
1945 | |
|
|
1946 | free_coro_mortal (aTHX); |
|
|
1947 | coro_mortal = prev_sv; |
|
|
1948 | } |
|
|
1949 | |
994 | static void |
1950 | static void |
995 | prepare_schedule (struct transfer_args *ta) |
1951 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
996 | { |
1952 | { |
997 | SV *prev_sv, *next_sv; |
|
|
998 | |
|
|
999 | for (;;) |
1953 | for (;;) |
1000 | { |
1954 | { |
1001 | LOCK; |
1955 | struct coro *next = coro_deq (aTHX); |
1002 | next_sv = coro_deq (PRIO_MIN); |
|
|
1003 | UNLOCK; |
|
|
1004 | |
1956 | |
|
|
1957 | if (ecb_expect_true (next)) |
|
|
1958 | { |
|
|
1959 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1960 | if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED))) |
|
|
1961 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1962 | else |
|
|
1963 | { |
|
|
1964 | next->flags &= ~CF_READY; |
|
|
1965 | --coro_nready; |
|
|
1966 | |
|
|
1967 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1968 | break; |
|
|
1969 | } |
|
|
1970 | } |
|
|
1971 | else |
|
|
1972 | { |
1005 | /* nothing to schedule: call the idle handler */ |
1973 | /* nothing to schedule: call the idle handler */ |
1006 | if (!next_sv) |
1974 | if (SvROK (sv_idle) |
|
|
1975 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1976 | { |
|
|
1977 | if (SvRV (sv_idle) == SvRV (coro_current)) |
|
|
1978 | { |
|
|
1979 | require_pv ("Carp"); |
|
|
1980 | |
|
|
1981 | { |
|
|
1982 | dSP; |
|
|
1983 | |
|
|
1984 | ENTER; |
|
|
1985 | SAVETMPS; |
|
|
1986 | |
|
|
1987 | PUSHMARK (SP); |
|
|
1988 | XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::idle blocked itself - did you try to block inside an event loop callback? Caught", 0))); |
|
|
1989 | PUTBACK; |
|
|
1990 | call_pv ("Carp::confess", G_VOID | G_DISCARD); |
|
|
1991 | |
|
|
1992 | FREETMPS; |
|
|
1993 | LEAVE; |
|
|
1994 | } |
|
|
1995 | } |
|
|
1996 | |
|
|
1997 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1998 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1999 | --coro_nready; |
|
|
2000 | } |
|
|
2001 | else |
|
|
2002 | { |
|
|
2003 | /* TODO: deprecated, remove, cannot work reliably *//*D*/ |
|
|
2004 | dSP; |
|
|
2005 | |
|
|
2006 | ENTER; |
|
|
2007 | SAVETMPS; |
|
|
2008 | |
|
|
2009 | PUSHMARK (SP); |
|
|
2010 | PUTBACK; |
|
|
2011 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
2012 | |
|
|
2013 | FREETMPS; |
|
|
2014 | LEAVE; |
|
|
2015 | } |
|
|
2016 | } |
|
|
2017 | } |
|
|
2018 | } |
|
|
2019 | |
|
|
2020 | ecb_inline void |
|
|
2021 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
|
|
2022 | { |
|
|
2023 | api_ready (aTHX_ coro_current); |
|
|
2024 | prepare_schedule (aTHX_ ta); |
|
|
2025 | } |
|
|
2026 | |
|
|
2027 | ecb_inline void |
|
|
2028 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
2029 | { |
|
|
2030 | SV *prev = SvRV (coro_current); |
|
|
2031 | |
|
|
2032 | if (coro_nready) |
|
|
2033 | { |
|
|
2034 | prepare_schedule (aTHX_ ta); |
|
|
2035 | api_ready (aTHX_ prev); |
|
|
2036 | } |
|
|
2037 | else |
|
|
2038 | prepare_nop (aTHX_ ta); |
|
|
2039 | } |
|
|
2040 | |
|
|
2041 | static void |
|
|
2042 | api_schedule (pTHX) |
|
|
2043 | { |
|
|
2044 | struct coro_transfer_args ta; |
|
|
2045 | |
|
|
2046 | prepare_schedule (aTHX_ &ta); |
|
|
2047 | TRANSFER (ta, 1); |
|
|
2048 | } |
|
|
2049 | |
|
|
2050 | static void |
|
|
2051 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
2052 | { |
|
|
2053 | struct coro_transfer_args ta; |
|
|
2054 | struct coro *next = SvSTATE (coro_sv); |
|
|
2055 | |
|
|
2056 | SvREFCNT_inc_NN (coro_sv); |
|
|
2057 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
2058 | } |
|
|
2059 | |
|
|
2060 | static int |
|
|
2061 | api_cede (pTHX) |
|
|
2062 | { |
|
|
2063 | struct coro_transfer_args ta; |
|
|
2064 | |
|
|
2065 | prepare_cede (aTHX_ &ta); |
|
|
2066 | |
|
|
2067 | if (ecb_expect_true (ta.prev != ta.next)) |
|
|
2068 | { |
|
|
2069 | TRANSFER (ta, 1); |
|
|
2070 | return 1; |
|
|
2071 | } |
|
|
2072 | else |
|
|
2073 | return 0; |
|
|
2074 | } |
|
|
2075 | |
|
|
2076 | static int |
|
|
2077 | api_cede_notself (pTHX) |
|
|
2078 | { |
|
|
2079 | if (coro_nready) |
|
|
2080 | { |
|
|
2081 | struct coro_transfer_args ta; |
|
|
2082 | |
|
|
2083 | prepare_cede_notself (aTHX_ &ta); |
|
|
2084 | TRANSFER (ta, 1); |
|
|
2085 | return 1; |
|
|
2086 | } |
|
|
2087 | else |
|
|
2088 | return 0; |
|
|
2089 | } |
|
|
2090 | |
|
|
2091 | static void |
|
|
2092 | api_trace (pTHX_ SV *coro_sv, int flags) |
|
|
2093 | { |
|
|
2094 | struct coro *coro = SvSTATE (coro_sv); |
|
|
2095 | |
|
|
2096 | if (coro->flags & CF_RUNNING) |
|
|
2097 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
2098 | |
|
|
2099 | if (flags & CC_TRACE) |
|
|
2100 | { |
|
|
2101 | if (!coro->cctx) |
|
|
2102 | coro->cctx = cctx_new_run (); |
|
|
2103 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
2104 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
|
|
2105 | |
|
|
2106 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
2107 | } |
|
|
2108 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
2109 | { |
|
|
2110 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
2111 | |
|
|
2112 | if (coro->flags & CF_RUNNING) |
|
|
2113 | PL_runops = RUNOPS_DEFAULT; |
|
|
2114 | else |
|
|
2115 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
2116 | } |
|
|
2117 | } |
|
|
2118 | |
|
|
2119 | static void |
|
|
2120 | coro_push_av (pTHX_ AV *av, I32 gimme_v) |
|
|
2121 | { |
|
|
2122 | if (AvFILLp (av) >= 0 && gimme_v != G_VOID) |
|
|
2123 | { |
|
|
2124 | dSP; |
|
|
2125 | |
|
|
2126 | if (gimme_v == G_SCALAR) |
|
|
2127 | XPUSHs (AvARRAY (av)[AvFILLp (av)]); |
|
|
2128 | else |
|
|
2129 | { |
|
|
2130 | int i; |
|
|
2131 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2132 | |
|
|
2133 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2134 | PUSHs (AvARRAY (av)[i]); |
|
|
2135 | } |
|
|
2136 | |
|
|
2137 | PUTBACK; |
|
|
2138 | } |
|
|
2139 | } |
|
|
2140 | |
|
|
2141 | static void |
|
|
2142 | coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb) |
|
|
2143 | { |
|
|
2144 | if (!coro->on_destroy) |
|
|
2145 | coro->on_destroy = newAV (); |
|
|
2146 | |
|
|
2147 | av_push (coro->on_destroy, cb); |
|
|
2148 | } |
|
|
2149 | |
|
|
2150 | static void |
|
|
2151 | slf_destroy_join (pTHX_ struct CoroSLF *frame) |
|
|
2152 | { |
|
|
2153 | SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv); |
|
|
2154 | } |
|
|
2155 | |
|
|
2156 | static int |
|
|
2157 | slf_check_join (pTHX_ struct CoroSLF *frame) |
|
|
2158 | { |
|
|
2159 | struct coro *coro = (struct coro *)frame->data; |
|
|
2160 | |
|
|
2161 | if (!coro->status) |
|
|
2162 | return 1; |
|
|
2163 | |
|
|
2164 | frame->destroy = 0; |
|
|
2165 | |
|
|
2166 | coro_push_av (aTHX_ coro->status, GIMME_V); |
|
|
2167 | |
|
|
2168 | SvREFCNT_dec ((SV *)coro->hv); |
|
|
2169 | |
|
|
2170 | return 0; |
|
|
2171 | } |
|
|
2172 | |
|
|
2173 | static void |
|
|
2174 | slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2175 | { |
|
|
2176 | struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef); |
|
|
2177 | |
|
|
2178 | if (items > 1) |
|
|
2179 | croak ("join called with too many arguments"); |
|
|
2180 | |
|
|
2181 | if (coro->status) |
|
|
2182 | frame->prepare = prepare_nop; |
|
|
2183 | else |
|
|
2184 | { |
|
|
2185 | coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current))); |
|
|
2186 | frame->prepare = prepare_schedule; |
|
|
2187 | } |
|
|
2188 | |
|
|
2189 | frame->check = slf_check_join; |
|
|
2190 | frame->destroy = slf_destroy_join; |
|
|
2191 | frame->data = (void *)coro; |
|
|
2192 | SvREFCNT_inc (coro->hv); |
|
|
2193 | } |
|
|
2194 | |
|
|
2195 | static void |
|
|
2196 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
2197 | { |
|
|
2198 | AV *od = coro->on_destroy; |
|
|
2199 | |
|
|
2200 | if (!od) |
|
|
2201 | return; |
|
|
2202 | |
|
|
2203 | coro->on_destroy = 0; |
|
|
2204 | sv_2mortal ((SV *)od); |
|
|
2205 | |
|
|
2206 | while (AvFILLp (od) >= 0) |
|
|
2207 | { |
|
|
2208 | SV *cb = sv_2mortal (av_pop (od)); |
|
|
2209 | |
|
|
2210 | /* coro hv's (and only hv's at the moment) are supported as well */ |
|
|
2211 | if (SvSTATEhv_p (aTHX_ cb)) |
|
|
2212 | api_ready (aTHX_ cb); |
|
|
2213 | else |
|
|
2214 | { |
|
|
2215 | dSP; /* don't disturb outer sp */ |
|
|
2216 | PUSHMARK (SP); |
|
|
2217 | |
|
|
2218 | if (coro->status) |
|
|
2219 | { |
|
|
2220 | PUTBACK; |
|
|
2221 | coro_push_av (aTHX_ coro->status, G_ARRAY); |
|
|
2222 | SPAGAIN; |
|
|
2223 | } |
|
|
2224 | |
|
|
2225 | PUTBACK; |
|
|
2226 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2227 | } |
|
|
2228 | } |
|
|
2229 | } |
|
|
2230 | |
|
|
2231 | static void |
|
|
2232 | coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2233 | { |
|
|
2234 | AV *av; |
|
|
2235 | |
|
|
2236 | if (coro->status) |
|
|
2237 | { |
|
|
2238 | av = coro->status; |
|
|
2239 | av_clear (av); |
|
|
2240 | } |
|
|
2241 | else |
|
|
2242 | av = coro->status = newAV (); |
|
|
2243 | |
|
|
2244 | /* items are actually not so common, so optimise for this case */ |
|
|
2245 | if (items) |
|
|
2246 | { |
|
|
2247 | int i; |
|
|
2248 | |
|
|
2249 | av_extend (av, items - 1); |
|
|
2250 | |
|
|
2251 | for (i = 0; i < items; ++i) |
|
|
2252 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
2253 | } |
|
|
2254 | } |
|
|
2255 | |
|
|
2256 | static void |
|
|
2257 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
|
|
2258 | { |
|
|
2259 | av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */ |
|
|
2260 | api_ready (aTHX_ sv_manager); |
|
|
2261 | |
|
|
2262 | frame->prepare = prepare_schedule; |
|
|
2263 | frame->check = slf_check_repeat; |
|
|
2264 | |
|
|
2265 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
2266 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
2267 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2268 | } |
|
|
2269 | |
|
|
2270 | static void |
|
|
2271 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2272 | { |
|
|
2273 | HV *coro_hv = (HV *)SvRV (coro_current); |
|
|
2274 | |
|
|
2275 | coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items); |
|
|
2276 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2277 | } |
|
|
2278 | |
|
|
2279 | static void |
|
|
2280 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2281 | { |
|
|
2282 | HV *coro_hv; |
|
|
2283 | struct coro *coro; |
|
|
2284 | |
|
|
2285 | if (items <= 0) |
|
|
2286 | croak ("Coro::cancel called without coro object,"); |
|
|
2287 | |
|
|
2288 | coro = SvSTATE (arg [0]); |
|
|
2289 | coro_hv = coro->hv; |
|
|
2290 | |
|
|
2291 | coro_set_status (aTHX_ coro, arg + 1, items - 1); |
|
|
2292 | |
|
|
2293 | if (ecb_expect_false (coro->flags & CF_NOCANCEL)) |
|
|
2294 | { |
|
|
2295 | /* coro currently busy cancelling something, so just notify it */ |
|
|
2296 | coro->slf_frame.data = (void *)coro; |
|
|
2297 | |
|
|
2298 | frame->prepare = prepare_nop; |
|
|
2299 | frame->check = slf_check_nop; |
|
|
2300 | } |
|
|
2301 | else if (coro_hv == (HV *)SvRV (coro_current)) |
|
|
2302 | { |
|
|
2303 | /* cancelling the current coro is allowed, and equals terminate */ |
|
|
2304 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2305 | } |
|
|
2306 | else |
|
|
2307 | { |
|
|
2308 | struct coro *self = SvSTATE_current; |
|
|
2309 | |
|
|
2310 | if (!self) |
|
|
2311 | croak ("Coro::cancel called outside of thread content,"); |
|
|
2312 | |
|
|
2313 | /* otherwise we cancel directly, purely for speed reasons |
|
|
2314 | * unfortunately, this requires some magic trickery, as |
|
|
2315 | * somebody else could cancel us, so we have to fight the cancellation. |
|
|
2316 | * this is ugly, and hopefully fully worth the extra speed. |
|
|
2317 | * besides, I can't get the slow-but-safe version working... |
|
|
2318 | */ |
|
|
2319 | slf_frame.data = 0; |
|
|
2320 | self->flags |= CF_NOCANCEL; |
|
|
2321 | coro_state_destroy (aTHX_ coro); |
|
|
2322 | self->flags &= ~CF_NOCANCEL; |
|
|
2323 | |
|
|
2324 | if (slf_frame.data) |
|
|
2325 | { |
|
|
2326 | /* while we were busy we have been cancelled, so terminate */ |
|
|
2327 | slf_init_terminate_cancel_common (aTHX_ frame, self->hv); |
|
|
2328 | } |
|
|
2329 | else |
|
|
2330 | { |
|
|
2331 | frame->prepare = prepare_nop; |
|
|
2332 | frame->check = slf_check_nop; |
|
|
2333 | } |
|
|
2334 | } |
|
|
2335 | } |
|
|
2336 | |
|
|
2337 | static int |
|
|
2338 | slf_check_safe_cancel (pTHX_ struct CoroSLF *frame) |
|
|
2339 | { |
|
|
2340 | frame->prepare = 0; |
|
|
2341 | coro_unwind_stacks (aTHX); |
|
|
2342 | |
|
|
2343 | slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current)); |
|
|
2344 | |
|
|
2345 | return 1; |
|
|
2346 | } |
|
|
2347 | |
|
|
2348 | static int |
|
|
2349 | safe_cancel (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2350 | { |
|
|
2351 | if (coro->cctx) |
|
|
2352 | croak ("coro inside C callback, unable to cancel at this time, caught"); |
|
|
2353 | |
|
|
2354 | if (coro->flags & CF_NEW) |
|
|
2355 | { |
|
|
2356 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2357 | coro_state_destroy (aTHX_ coro); |
|
|
2358 | } |
|
|
2359 | else |
|
|
2360 | { |
|
|
2361 | if (!coro->slf_frame.prepare) |
|
|
2362 | croak ("coro outside an SLF function, unable to cancel at this time, caught"); |
|
|
2363 | |
|
|
2364 | slf_destroy (aTHX_ coro); |
|
|
2365 | |
|
|
2366 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2367 | coro->slf_frame.prepare = prepare_nop; |
|
|
2368 | coro->slf_frame.check = slf_check_safe_cancel; |
|
|
2369 | |
|
|
2370 | api_ready (aTHX_ (SV *)coro->hv); |
|
|
2371 | } |
|
|
2372 | |
|
|
2373 | return 1; |
|
|
2374 | } |
|
|
2375 | |
|
|
2376 | /*****************************************************************************/ |
|
|
2377 | /* async pool handler */ |
|
|
2378 | |
|
|
2379 | static int |
|
|
2380 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
2381 | { |
|
|
2382 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2383 | struct coro *coro = (struct coro *)frame->data; |
|
|
2384 | |
|
|
2385 | if (!coro->invoke_cb) |
|
|
2386 | return 1; /* loop till we have invoke */ |
|
|
2387 | else |
|
|
2388 | { |
|
|
2389 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2390 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2391 | |
|
|
2392 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2393 | |
|
|
2394 | { |
|
|
2395 | dSP; |
|
|
2396 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
2397 | PUTBACK; |
|
|
2398 | } |
|
|
2399 | |
|
|
2400 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
2401 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
2402 | coro->invoke_av = 0; |
|
|
2403 | |
|
|
2404 | return 0; |
|
|
2405 | } |
|
|
2406 | } |
|
|
2407 | |
|
|
2408 | static void |
|
|
2409 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2410 | { |
|
|
2411 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2412 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2413 | |
|
|
2414 | if (ecb_expect_true (coro->saved_deffh)) |
|
|
2415 | { |
|
|
2416 | /* subsequent iteration */ |
|
|
2417 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2418 | coro->saved_deffh = 0; |
|
|
2419 | |
|
|
2420 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2421 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2422 | { |
|
|
2423 | slf_init_terminate_cancel_common (aTHX_ frame, hv); |
|
|
2424 | return; |
|
|
2425 | } |
|
|
2426 | else |
|
|
2427 | { |
|
|
2428 | av_clear (GvAV (PL_defgv)); |
|
|
2429 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
2430 | |
|
|
2431 | if (ecb_expect_false (coro->swap_sv)) |
|
|
2432 | { |
|
|
2433 | swap_svs_leave (coro); |
|
|
2434 | SvREFCNT_dec_NN (coro->swap_sv); |
|
|
2435 | coro->swap_sv = 0; |
|
|
2436 | } |
|
|
2437 | |
|
|
2438 | coro->prio = 0; |
|
|
2439 | |
|
|
2440 | if (ecb_expect_false (coro->cctx) && ecb_expect_false (coro->cctx->flags & CC_TRACE)) |
|
|
2441 | api_trace (aTHX_ coro_current, 0); |
|
|
2442 | |
|
|
2443 | frame->prepare = prepare_schedule; |
|
|
2444 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2445 | } |
|
|
2446 | } |
|
|
2447 | else |
|
|
2448 | { |
|
|
2449 | /* first iteration, simply fall through */ |
|
|
2450 | frame->prepare = prepare_nop; |
|
|
2451 | } |
|
|
2452 | |
|
|
2453 | frame->check = slf_check_pool_handler; |
|
|
2454 | frame->data = (void *)coro; |
|
|
2455 | } |
|
|
2456 | |
|
|
2457 | /*****************************************************************************/ |
|
|
2458 | /* rouse callback */ |
|
|
2459 | |
|
|
2460 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2461 | |
|
|
2462 | static void |
|
|
2463 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2464 | { |
|
|
2465 | dXSARGS; |
|
|
2466 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2467 | |
|
|
2468 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2469 | { |
|
|
2470 | /* first call, set args */ |
|
|
2471 | SV *coro = SvRV (data); |
|
|
2472 | AV *av = newAV (); |
|
|
2473 | |
|
|
2474 | SvRV_set (data, (SV *)av); |
|
|
2475 | |
|
|
2476 | /* better take a full copy of the arguments */ |
|
|
2477 | while (items--) |
|
|
2478 | av_store (av, items, newSVsv (ST (items))); |
|
|
2479 | |
|
|
2480 | api_ready (aTHX_ coro); |
|
|
2481 | SvREFCNT_dec (coro); |
|
|
2482 | } |
|
|
2483 | |
|
|
2484 | XSRETURN_EMPTY; |
|
|
2485 | } |
|
|
2486 | |
|
|
2487 | static int |
|
|
2488 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2489 | { |
|
|
2490 | SV *data = (SV *)frame->data; |
|
|
2491 | |
|
|
2492 | if (CORO_THROW) |
|
|
2493 | return 0; |
|
|
2494 | |
|
|
2495 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2496 | return 1; |
|
|
2497 | |
|
|
2498 | /* now push all results on the stack */ |
|
|
2499 | { |
|
|
2500 | dSP; |
|
|
2501 | AV *av = (AV *)SvRV (data); |
|
|
2502 | int i; |
|
|
2503 | |
|
|
2504 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2505 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2506 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2507 | |
|
|
2508 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2509 | AvFILLp (av) = -1; |
|
|
2510 | av_undef (av); |
|
|
2511 | |
|
|
2512 | PUTBACK; |
|
|
2513 | } |
|
|
2514 | |
|
|
2515 | return 0; |
|
|
2516 | } |
|
|
2517 | |
|
|
2518 | static void |
|
|
2519 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2520 | { |
|
|
2521 | SV *cb; |
|
|
2522 | |
|
|
2523 | if (items) |
|
|
2524 | cb = arg [0]; |
|
|
2525 | else |
|
|
2526 | { |
|
|
2527 | struct coro *coro = SvSTATE_current; |
|
|
2528 | |
|
|
2529 | if (!coro->rouse_cb) |
|
|
2530 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2531 | |
|
|
2532 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2533 | coro->rouse_cb = 0; |
|
|
2534 | } |
|
|
2535 | |
|
|
2536 | if (!SvROK (cb) |
|
|
2537 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2538 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2539 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2540 | |
|
|
2541 | { |
|
|
2542 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
|
|
2543 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2544 | |
|
|
2545 | frame->data = (void *)data; |
|
|
2546 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2547 | frame->check = slf_check_rouse_wait; |
|
|
2548 | } |
|
|
2549 | } |
|
|
2550 | |
|
|
2551 | static SV * |
|
|
2552 | coro_new_rouse_cb (pTHX) |
|
|
2553 | { |
|
|
2554 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2555 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2556 | SV *data = newRV_inc ((SV *)hv); |
|
|
2557 | SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2558 | |
|
|
2559 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2560 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2561 | |
|
|
2562 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2563 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2564 | |
|
|
2565 | return cb; |
|
|
2566 | } |
|
|
2567 | |
|
|
2568 | /*****************************************************************************/ |
|
|
2569 | /* schedule-like-function opcode (SLF) */ |
|
|
2570 | |
|
|
2571 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2572 | static const CV *slf_cv; |
|
|
2573 | static SV **slf_argv; |
|
|
2574 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2575 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2576 | |
|
|
2577 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2578 | /* recreate the stack frame as perl will on following calls */ |
|
|
2579 | /* since entersub cleared the stack */ |
|
|
2580 | static OP * |
|
|
2581 | pp_restore (pTHX) |
|
|
2582 | { |
|
|
2583 | int i; |
|
|
2584 | SV **SP = PL_stack_base + slf_ax; |
|
|
2585 | |
|
|
2586 | PUSHMARK (SP); |
|
|
2587 | |
|
|
2588 | EXTEND (SP, slf_argc + 1); |
|
|
2589 | |
|
|
2590 | for (i = 0; i < slf_argc; ++i) |
|
|
2591 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2592 | |
|
|
2593 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2594 | |
|
|
2595 | RETURNOP (slf_restore.op_first); |
|
|
2596 | } |
|
|
2597 | |
|
|
2598 | static void |
|
|
2599 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2600 | { |
|
|
2601 | SV **arg = (SV **)slf_frame.data; |
|
|
2602 | |
|
|
2603 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2604 | } |
|
|
2605 | |
|
|
2606 | static void |
|
|
2607 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2608 | { |
|
|
2609 | if (items != 2) |
|
|
2610 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2611 | |
|
|
2612 | frame->prepare = slf_prepare_transfer; |
|
|
2613 | frame->check = slf_check_nop; |
|
|
2614 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2615 | } |
|
|
2616 | |
|
|
2617 | static void |
|
|
2618 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2619 | { |
|
|
2620 | frame->prepare = prepare_schedule; |
|
|
2621 | frame->check = slf_check_nop; |
|
|
2622 | } |
|
|
2623 | |
|
|
2624 | static void |
|
|
2625 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2626 | { |
|
|
2627 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2628 | |
|
|
2629 | SvREFCNT_inc_NN (next->hv); |
|
|
2630 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2631 | } |
|
|
2632 | |
|
|
2633 | static void |
|
|
2634 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2635 | { |
|
|
2636 | if (!items) |
|
|
2637 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2638 | |
|
|
2639 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2640 | frame->prepare = slf_prepare_schedule_to; |
|
|
2641 | frame->check = slf_check_nop; |
|
|
2642 | } |
|
|
2643 | |
|
|
2644 | static void |
|
|
2645 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2646 | { |
|
|
2647 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2648 | |
|
|
2649 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2650 | } |
|
|
2651 | |
|
|
2652 | static void |
|
|
2653 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2654 | { |
|
|
2655 | frame->prepare = prepare_cede; |
|
|
2656 | frame->check = slf_check_nop; |
|
|
2657 | } |
|
|
2658 | |
|
|
2659 | static void |
|
|
2660 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2661 | { |
|
|
2662 | frame->prepare = prepare_cede_notself; |
|
|
2663 | frame->check = slf_check_nop; |
|
|
2664 | } |
|
|
2665 | |
|
|
2666 | /* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ |
|
|
2667 | static void |
|
|
2668 | slf_destroy (pTHX_ struct coro *coro) |
|
|
2669 | { |
|
|
2670 | struct CoroSLF frame = coro->slf_frame; |
|
|
2671 | |
|
|
2672 | /* |
|
|
2673 | * The on_destroy below most likely is from an SLF call. |
|
|
2674 | * Since by definition the SLF call will not finish when we destroy |
|
|
2675 | * the coro, we will have to force-finish it here, otherwise |
|
|
2676 | * cleanup functions cannot call SLF functions. |
|
|
2677 | */ |
|
|
2678 | coro->slf_frame.prepare = 0; |
|
|
2679 | |
|
|
2680 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
2681 | if (frame.destroy && frame.prepare && !PL_dirty) |
|
|
2682 | frame.destroy (aTHX_ &frame); |
|
|
2683 | } |
|
|
2684 | |
|
|
2685 | /* |
|
|
2686 | * these not obviously related functions are all rolled into one |
|
|
2687 | * function to increase chances that they all will call transfer with the same |
|
|
2688 | * stack offset |
|
|
2689 | * SLF stands for "schedule-like-function". |
|
|
2690 | */ |
|
|
2691 | static OP * |
|
|
2692 | pp_slf (pTHX) |
|
|
2693 | { |
|
|
2694 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2695 | |
|
|
2696 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2697 | /* the latter happens when a new coro has been started */ |
|
|
2698 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2699 | if (ecb_expect_true (!slf_frame.prepare)) |
|
|
2700 | { |
|
|
2701 | /* first iteration */ |
|
|
2702 | dSP; |
|
|
2703 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2704 | int items = SP - arg; /* args without function object */ |
|
|
2705 | SV *gv = *sp; |
|
|
2706 | |
|
|
2707 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2708 | /* for us, divert to the real entersub */ |
|
|
2709 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2710 | || !GvCV (gv) |
|
|
2711 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2712 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2713 | |
|
|
2714 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2715 | { |
|
|
2716 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2717 | AV *av = GvAV (PL_defgv); |
|
|
2718 | arg = AvARRAY (av); |
|
|
2719 | items = AvFILLp (av) + 1; |
|
|
2720 | } |
|
|
2721 | |
|
|
2722 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2723 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2724 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2725 | |
|
|
2726 | /* pop args */ |
|
|
2727 | SP = PL_stack_base + POPMARK; |
|
|
2728 | |
|
|
2729 | PUTBACK; |
|
|
2730 | } |
|
|
2731 | |
|
|
2732 | /* now that we have a slf_frame, interpret it! */ |
|
|
2733 | /* we use a callback system not to make the code needlessly */ |
|
|
2734 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2735 | |
|
|
2736 | do |
|
|
2737 | { |
|
|
2738 | struct coro_transfer_args ta; |
|
|
2739 | |
|
|
2740 | slf_frame.prepare (aTHX_ &ta); |
|
|
2741 | TRANSFER (ta, 0); |
|
|
2742 | |
|
|
2743 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2744 | } |
|
|
2745 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2746 | |
|
|
2747 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2748 | |
|
|
2749 | /* exception handling */ |
|
|
2750 | if (ecb_expect_false (CORO_THROW)) |
|
|
2751 | { |
|
|
2752 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2753 | |
|
|
2754 | CORO_THROW = 0; |
|
|
2755 | sv_setsv (ERRSV, exception); |
|
|
2756 | croak (0); |
|
|
2757 | } |
|
|
2758 | |
|
|
2759 | /* return value handling - mostly like entersub */ |
|
|
2760 | /* make sure we put something on the stack in scalar context */ |
|
|
2761 | if (GIMME_V == G_SCALAR |
|
|
2762 | && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1)) |
|
|
2763 | { |
|
|
2764 | dSP; |
|
|
2765 | SV **bot = PL_stack_base + checkmark; |
|
|
2766 | |
|
|
2767 | if (sp == bot) /* too few, push undef */ |
|
|
2768 | bot [1] = &PL_sv_undef; |
|
|
2769 | else /* too many, take last one */ |
|
|
2770 | bot [1] = *sp; |
|
|
2771 | |
|
|
2772 | SP = bot + 1; |
|
|
2773 | |
|
|
2774 | PUTBACK; |
|
|
2775 | } |
|
|
2776 | |
|
|
2777 | return NORMAL; |
|
|
2778 | } |
|
|
2779 | |
|
|
2780 | static void |
|
|
2781 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2782 | { |
|
|
2783 | int i; |
|
|
2784 | SV **arg = PL_stack_base + ax; |
|
|
2785 | int items = PL_stack_sp - arg + 1; |
|
|
2786 | |
|
|
2787 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2788 | |
|
|
2789 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2790 | && PL_op->op_ppaddr != pp_slf) |
|
|
2791 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2792 | |
|
|
2793 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2794 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2795 | slf_cv = cv; |
|
|
2796 | |
|
|
2797 | /* we patch the op, and then re-run the whole call */ |
|
|
2798 | /* we have to put the same argument on the stack for this to work */ |
|
|
2799 | /* and this will be done by pp_restore */ |
|
|
2800 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2801 | slf_restore.op_type = OP_CUSTOM; |
|
|
2802 | slf_restore.op_ppaddr = pp_restore; |
|
|
2803 | slf_restore.op_first = PL_op; |
|
|
2804 | |
|
|
2805 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2806 | |
|
|
2807 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2808 | { |
|
|
2809 | if (items > slf_arga) |
|
|
2810 | { |
|
|
2811 | slf_arga = items; |
|
|
2812 | Safefree (slf_argv); |
|
|
2813 | New (0, slf_argv, slf_arga, SV *); |
|
|
2814 | } |
|
|
2815 | |
|
|
2816 | slf_argc = items; |
|
|
2817 | |
|
|
2818 | for (i = 0; i < items; ++i) |
|
|
2819 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2820 | } |
|
|
2821 | else |
|
|
2822 | slf_argc = 0; |
|
|
2823 | |
|
|
2824 | PL_op->op_ppaddr = pp_slf; |
|
|
2825 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2826 | |
|
|
2827 | PL_op = (OP *)&slf_restore; |
|
|
2828 | } |
|
|
2829 | |
|
|
2830 | /*****************************************************************************/ |
|
|
2831 | /* dynamic wind */ |
|
|
2832 | |
|
|
2833 | static void |
|
|
2834 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2835 | { |
|
|
2836 | dSP; |
|
|
2837 | |
|
|
2838 | PUSHSTACK; |
|
|
2839 | |
|
|
2840 | PUSHMARK (SP); |
|
|
2841 | PUTBACK; |
|
|
2842 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2843 | SPAGAIN; |
|
|
2844 | |
|
|
2845 | POPSTACK; |
|
|
2846 | } |
|
|
2847 | |
|
|
2848 | static SV * |
|
|
2849 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2850 | { |
|
|
2851 | AV *av = *avp; |
|
|
2852 | SV *res = av_pop (av); |
|
|
2853 | |
|
|
2854 | if (AvFILLp (av) < 0) |
|
|
2855 | { |
|
|
2856 | *avp = 0; |
|
|
2857 | SvREFCNT_dec (av); |
|
|
2858 | } |
|
|
2859 | |
|
|
2860 | return res; |
|
|
2861 | } |
|
|
2862 | |
|
|
2863 | static void |
|
|
2864 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2865 | { |
|
|
2866 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2867 | SvREFCNT_dec (cb); |
|
|
2868 | } |
|
|
2869 | |
|
|
2870 | static void |
|
|
2871 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2872 | { |
|
|
2873 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2874 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2875 | } |
|
|
2876 | |
|
|
2877 | static void |
|
|
2878 | enterleave_hook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, void *arg) |
|
|
2879 | { |
|
|
2880 | if (!hook) |
|
|
2881 | return; |
|
|
2882 | |
|
|
2883 | if (!*avp) |
|
|
2884 | { |
|
|
2885 | *avp = newAV (); |
|
|
2886 | AvREAL_off (*avp); |
|
|
2887 | } |
|
|
2888 | |
|
|
2889 | av_push (*avp, (SV *)hook); |
|
|
2890 | av_push (*avp, (SV *)arg); |
|
|
2891 | } |
|
|
2892 | |
|
|
2893 | static void |
|
|
2894 | enterleave_unhook_xs (pTHX_ struct coro *coro, AV **avp, coro_enterleave_hook hook, int execute) |
|
|
2895 | { |
|
|
2896 | AV *av = *avp; |
|
|
2897 | int i; |
|
|
2898 | |
|
|
2899 | if (!av) |
|
|
2900 | return; |
|
|
2901 | |
|
|
2902 | for (i = AvFILLp (av) - 1; i >= 0; i -= 2) |
|
|
2903 | if (AvARRAY (av)[i] == (SV *)hook) |
|
|
2904 | { |
|
|
2905 | if (execute) |
|
|
2906 | hook (aTHX_ (void *)AvARRAY (av)[i + 1]); |
|
|
2907 | |
|
|
2908 | memmove (AvARRAY (av) + i, AvARRAY (av) + i + 2, AvFILLp (av) - i - 1); |
|
|
2909 | av_pop (av); |
|
|
2910 | av_pop (av); |
|
|
2911 | break; |
|
|
2912 | } |
|
|
2913 | |
|
|
2914 | if (AvFILLp (av) >= 0) |
|
|
2915 | { |
|
|
2916 | *avp = 0; |
|
|
2917 | SvREFCNT_dec_NN (av); |
|
|
2918 | } |
|
|
2919 | } |
|
|
2920 | |
|
|
2921 | static void |
|
|
2922 | api_enterleave_hook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg) |
|
|
2923 | { |
|
|
2924 | struct coro *coro = SvSTATE (coro_sv); |
|
|
2925 | |
|
|
2926 | if (SvSTATE_current == coro) |
|
|
2927 | if (enter) |
|
|
2928 | enter (aTHX_ enter_arg); |
|
|
2929 | |
|
|
2930 | enterleave_hook_xs (aTHX_ coro, &coro->on_enter_xs, enter, enter_arg); |
|
|
2931 | enterleave_hook_xs (aTHX_ coro, &coro->on_leave_xs, leave, leave_arg); |
|
|
2932 | } |
|
|
2933 | |
|
|
2934 | static void |
|
|
2935 | api_enterleave_unhook (pTHX_ SV *coro_sv, coro_enterleave_hook enter, coro_enterleave_hook leave) |
|
|
2936 | { |
|
|
2937 | struct coro *coro = SvSTATE (coro_sv); |
|
|
2938 | |
|
|
2939 | enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0); |
|
|
2940 | enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, SvSTATE_current == coro); |
|
|
2941 | } |
|
|
2942 | |
|
|
2943 | static void |
|
|
2944 | savedestructor_unhook_enter (pTHX_ coro_enterleave_hook enter) |
|
|
2945 | { |
|
|
2946 | struct coro *coro = SvSTATE_current; |
|
|
2947 | |
|
|
2948 | enterleave_unhook_xs (aTHX_ coro, &coro->on_enter_xs, enter, 0); |
|
|
2949 | } |
|
|
2950 | |
|
|
2951 | static void |
|
|
2952 | savedestructor_unhook_leave (pTHX_ coro_enterleave_hook leave) |
|
|
2953 | { |
|
|
2954 | struct coro *coro = SvSTATE_current; |
|
|
2955 | |
|
|
2956 | enterleave_unhook_xs (aTHX_ coro, &coro->on_leave_xs, leave, 1); |
|
|
2957 | } |
|
|
2958 | |
|
|
2959 | static void |
|
|
2960 | api_enterleave_scope_hook (pTHX_ coro_enterleave_hook enter, void *enter_arg, coro_enterleave_hook leave, void *leave_arg) |
|
|
2961 | { |
|
|
2962 | api_enterleave_hook (aTHX_ coro_current, enter, enter_arg, leave, leave_arg); |
|
|
2963 | |
|
|
2964 | /* this ought to be much cheaper than malloc + a single destructor call */ |
|
|
2965 | if (enter) SAVEDESTRUCTOR_X (savedestructor_unhook_enter, enter); |
|
|
2966 | if (leave) SAVEDESTRUCTOR_X (savedestructor_unhook_leave, leave); |
|
|
2967 | } |
|
|
2968 | |
|
|
2969 | /*****************************************************************************/ |
|
|
2970 | /* PerlIO::cede */ |
|
|
2971 | |
|
|
2972 | typedef struct |
|
|
2973 | { |
|
|
2974 | PerlIOBuf base; |
|
|
2975 | NV next, every; |
|
|
2976 | } PerlIOCede; |
|
|
2977 | |
|
|
2978 | static IV ecb_cold |
|
|
2979 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
2980 | { |
|
|
2981 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2982 | |
|
|
2983 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
2984 | self->next = nvtime () + self->every; |
|
|
2985 | |
|
|
2986 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
2987 | } |
|
|
2988 | |
|
|
2989 | static SV * ecb_cold |
|
|
2990 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
2991 | { |
|
|
2992 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2993 | |
|
|
2994 | return newSVnv (self->every); |
|
|
2995 | } |
|
|
2996 | |
|
|
2997 | static IV |
|
|
2998 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
2999 | { |
|
|
3000 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
3001 | double now = nvtime (); |
|
|
3002 | |
|
|
3003 | if (now >= self->next) |
|
|
3004 | { |
|
|
3005 | api_cede (aTHX); |
|
|
3006 | self->next = now + self->every; |
|
|
3007 | } |
|
|
3008 | |
|
|
3009 | return PerlIOBuf_flush (aTHX_ f); |
|
|
3010 | } |
|
|
3011 | |
|
|
3012 | static PerlIO_funcs PerlIO_cede = |
|
|
3013 | { |
|
|
3014 | sizeof(PerlIO_funcs), |
|
|
3015 | "cede", |
|
|
3016 | sizeof(PerlIOCede), |
|
|
3017 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
3018 | PerlIOCede_pushed, |
|
|
3019 | PerlIOBuf_popped, |
|
|
3020 | PerlIOBuf_open, |
|
|
3021 | PerlIOBase_binmode, |
|
|
3022 | PerlIOCede_getarg, |
|
|
3023 | PerlIOBase_fileno, |
|
|
3024 | PerlIOBuf_dup, |
|
|
3025 | PerlIOBuf_read, |
|
|
3026 | PerlIOBuf_unread, |
|
|
3027 | PerlIOBuf_write, |
|
|
3028 | PerlIOBuf_seek, |
|
|
3029 | PerlIOBuf_tell, |
|
|
3030 | PerlIOBuf_close, |
|
|
3031 | PerlIOCede_flush, |
|
|
3032 | PerlIOBuf_fill, |
|
|
3033 | PerlIOBase_eof, |
|
|
3034 | PerlIOBase_error, |
|
|
3035 | PerlIOBase_clearerr, |
|
|
3036 | PerlIOBase_setlinebuf, |
|
|
3037 | PerlIOBuf_get_base, |
|
|
3038 | PerlIOBuf_bufsiz, |
|
|
3039 | PerlIOBuf_get_ptr, |
|
|
3040 | PerlIOBuf_get_cnt, |
|
|
3041 | PerlIOBuf_set_ptrcnt, |
|
|
3042 | }; |
|
|
3043 | |
|
|
3044 | /*****************************************************************************/ |
|
|
3045 | /* Coro::Semaphore & Coro::Signal */ |
|
|
3046 | |
|
|
3047 | static SV * |
|
|
3048 | coro_waitarray_new (pTHX_ int count) |
|
|
3049 | { |
|
|
3050 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
3051 | AV *av = newAV (); |
|
|
3052 | SV **ary; |
|
|
3053 | |
|
|
3054 | /* unfortunately, building manually saves memory */ |
|
|
3055 | Newx (ary, 2, SV *); |
|
|
3056 | AvALLOC (av) = ary; |
|
|
3057 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
3058 | AvARRAY (av) = ary; |
|
|
3059 | #else |
|
|
3060 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
3061 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
3062 | SvPVX ((SV *)av) = (char *)ary; |
|
|
3063 | #endif |
|
|
3064 | AvMAX (av) = 1; |
|
|
3065 | AvFILLp (av) = 0; |
|
|
3066 | ary [0] = newSViv (count); |
|
|
3067 | |
|
|
3068 | return newRV_noinc ((SV *)av); |
|
|
3069 | } |
|
|
3070 | |
|
|
3071 | /* semaphore */ |
|
|
3072 | |
|
|
3073 | static void |
|
|
3074 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
3075 | { |
|
|
3076 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3077 | IV count = SvIVX (count_sv); |
|
|
3078 | |
|
|
3079 | count += adjust; |
|
|
3080 | SvIVX (count_sv) = count; |
|
|
3081 | |
|
|
3082 | /* now wake up as many waiters as are expected to lock */ |
|
|
3083 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3084 | { |
|
|
3085 | SV *cb; |
|
|
3086 | |
|
|
3087 | /* swap first two elements so we can shift a waiter */ |
|
|
3088 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3089 | AvARRAY (av)[1] = count_sv; |
|
|
3090 | cb = av_shift (av); |
|
|
3091 | |
|
|
3092 | if (SvOBJECT (cb)) |
|
|
3093 | { |
|
|
3094 | api_ready (aTHX_ cb); |
|
|
3095 | --count; |
|
|
3096 | } |
|
|
3097 | else if (SvTYPE (cb) == SVt_PVCV) |
1007 | { |
3098 | { |
1008 | dSP; |
3099 | dSP; |
1009 | |
|
|
1010 | ENTER; |
|
|
1011 | SAVETMPS; |
|
|
1012 | |
|
|
1013 | PUSHMARK (SP); |
3100 | PUSHMARK (SP); |
|
|
3101 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
1014 | PUTBACK; |
3102 | PUTBACK; |
1015 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
3103 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
1016 | |
|
|
1017 | FREETMPS; |
|
|
1018 | LEAVE; |
|
|
1019 | continue; |
|
|
1020 | } |
3104 | } |
1021 | |
3105 | |
1022 | ta->next = SvSTATE (next_sv); |
3106 | SvREFCNT_dec_NN (cb); |
|
|
3107 | } |
|
|
3108 | } |
1023 | |
3109 | |
1024 | /* cannot transfer to destroyed coros, skip and look for next */ |
3110 | static void |
1025 | if (ta->next->flags & CF_DESTROYED) |
3111 | coro_semaphore_destroy (pTHX_ struct CoroSLF *frame) |
|
|
3112 | { |
|
|
3113 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
3114 | coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0); |
|
|
3115 | } |
|
|
3116 | |
|
|
3117 | static int |
|
|
3118 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
3119 | { |
|
|
3120 | AV *av = (AV *)frame->data; |
|
|
3121 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3122 | SV *coro_hv = SvRV (coro_current); |
|
|
3123 | |
|
|
3124 | frame->destroy = 0; |
|
|
3125 | |
|
|
3126 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
3127 | if (ecb_expect_false (CORO_THROW)) |
|
|
3128 | { |
|
|
3129 | /* we still might be responsible for the semaphore, so wake up others */ |
|
|
3130 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3131 | |
|
|
3132 | return 0; |
|
|
3133 | } |
|
|
3134 | else if (SvIVX (count_sv) > 0) |
|
|
3135 | { |
|
|
3136 | if (acquire) |
|
|
3137 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
3138 | else |
|
|
3139 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3140 | |
|
|
3141 | return 0; |
|
|
3142 | } |
|
|
3143 | else |
|
|
3144 | { |
|
|
3145 | int i; |
|
|
3146 | /* if we were woken up but can't down, we look through the whole */ |
|
|
3147 | /* waiters list and only add us if we aren't in there already */ |
|
|
3148 | /* this avoids some degenerate memory usage cases */ |
|
|
3149 | for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */ |
|
|
3150 | if (AvARRAY (av)[i] == coro_hv) |
|
|
3151 | return 1; |
|
|
3152 | |
|
|
3153 | av_push (av, SvREFCNT_inc (coro_hv)); |
|
|
3154 | return 1; |
|
|
3155 | } |
|
|
3156 | } |
|
|
3157 | |
|
|
3158 | static int |
|
|
3159 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
3160 | { |
|
|
3161 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
3162 | } |
|
|
3163 | |
|
|
3164 | static int |
|
|
3165 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
3166 | { |
|
|
3167 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
3168 | } |
|
|
3169 | |
|
|
3170 | static void |
|
|
3171 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3172 | { |
|
|
3173 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3174 | |
|
|
3175 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3176 | { |
|
|
3177 | frame->data = (void *)av; |
|
|
3178 | frame->prepare = prepare_nop; |
|
|
3179 | } |
|
|
3180 | else |
|
|
3181 | { |
|
|
3182 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
3183 | |
|
|
3184 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
3185 | frame->prepare = prepare_schedule; |
|
|
3186 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
3187 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
3188 | frame->destroy = coro_semaphore_destroy; |
|
|
3189 | } |
|
|
3190 | } |
|
|
3191 | |
|
|
3192 | static void |
|
|
3193 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3194 | { |
|
|
3195 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3196 | frame->check = slf_check_semaphore_down; |
|
|
3197 | } |
|
|
3198 | |
|
|
3199 | static void |
|
|
3200 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3201 | { |
|
|
3202 | if (items >= 2) |
|
|
3203 | { |
|
|
3204 | /* callback form */ |
|
|
3205 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3206 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3207 | |
|
|
3208 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3209 | |
|
|
3210 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3211 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3212 | |
|
|
3213 | frame->prepare = prepare_nop; |
|
|
3214 | frame->check = slf_check_nop; |
|
|
3215 | } |
|
|
3216 | else |
|
|
3217 | { |
|
|
3218 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3219 | frame->check = slf_check_semaphore_wait; |
|
|
3220 | } |
|
|
3221 | } |
|
|
3222 | |
|
|
3223 | /* signal */ |
|
|
3224 | |
|
|
3225 | static void |
|
|
3226 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
3227 | { |
|
|
3228 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3229 | |
|
|
3230 | /* now signal count waiters */ |
|
|
3231 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3232 | { |
|
|
3233 | SV *cb; |
|
|
3234 | |
|
|
3235 | /* swap first two elements so we can shift a waiter */ |
|
|
3236 | cb = AvARRAY (av)[0]; |
|
|
3237 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3238 | AvARRAY (av)[1] = cb; |
|
|
3239 | |
|
|
3240 | cb = av_shift (av); |
|
|
3241 | |
|
|
3242 | if (SvTYPE (cb) == SVt_PVCV) |
1026 | { |
3243 | { |
1027 | SvREFCNT_dec (next_sv); |
3244 | dSP; |
1028 | continue; |
3245 | PUSHMARK (SP); |
|
|
3246 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
3247 | PUTBACK; |
|
|
3248 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
1029 | } |
3249 | } |
|
|
3250 | else |
|
|
3251 | { |
|
|
3252 | api_ready (aTHX_ cb); |
|
|
3253 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
3254 | } |
1030 | |
3255 | |
1031 | break; |
3256 | SvREFCNT_dec_NN (cb); |
1032 | } |
|
|
1033 | |
3257 | |
1034 | /* free this only after the transfer */ |
3258 | --count; |
1035 | prev_sv = SvRV (coro_current); |
3259 | } |
1036 | SvRV_set (coro_current, next_sv); |
|
|
1037 | ta->prev = SvSTATE (prev_sv); |
|
|
1038 | |
|
|
1039 | assert (ta->next->flags & CF_READY); |
|
|
1040 | ta->next->flags &= ~CF_READY; |
|
|
1041 | |
|
|
1042 | LOCK; |
|
|
1043 | free_coro_mortal (); |
|
|
1044 | coro_mortal = prev_sv; |
|
|
1045 | UNLOCK; |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | static void |
|
|
1049 | prepare_cede (struct transfer_args *ta) |
|
|
1050 | { |
|
|
1051 | api_ready (coro_current); |
|
|
1052 | prepare_schedule (ta); |
|
|
1053 | } |
3260 | } |
1054 | |
3261 | |
1055 | static int |
3262 | static int |
1056 | prepare_cede_notself (struct transfer_args *ta) |
3263 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
1057 | { |
3264 | { |
1058 | if (coro_nready) |
3265 | /* if we are about to throw, also stop waiting */ |
|
|
3266 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
3267 | } |
|
|
3268 | |
|
|
3269 | static void |
|
|
3270 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3271 | { |
|
|
3272 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3273 | |
|
|
3274 | if (items >= 2) |
|
|
3275 | { |
|
|
3276 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3277 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3278 | |
|
|
3279 | if (SvIVX (AvARRAY (av)[0])) |
|
|
3280 | coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */ |
|
|
3281 | |
|
|
3282 | frame->prepare = prepare_nop; |
|
|
3283 | frame->check = slf_check_nop; |
1059 | { |
3284 | } |
1060 | SV *prev = SvRV (coro_current); |
3285 | else if (SvIVX (AvARRAY (av)[0])) |
1061 | prepare_schedule (ta); |
3286 | { |
1062 | api_ready (prev); |
3287 | SvIVX (AvARRAY (av)[0]) = 0; |
1063 | return 1; |
3288 | frame->prepare = prepare_nop; |
|
|
3289 | frame->check = slf_check_nop; |
1064 | } |
3290 | } |
1065 | else |
3291 | else |
|
|
3292 | { |
|
|
3293 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
3294 | |
|
|
3295 | av_push (av, waiter); |
|
|
3296 | |
|
|
3297 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
3298 | frame->prepare = prepare_schedule; |
|
|
3299 | frame->check = slf_check_signal_wait; |
|
|
3300 | } |
|
|
3301 | } |
|
|
3302 | |
|
|
3303 | /*****************************************************************************/ |
|
|
3304 | /* Coro::AIO */ |
|
|
3305 | |
|
|
3306 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
3307 | |
|
|
3308 | /* helper storage struct */ |
|
|
3309 | struct io_state |
|
|
3310 | { |
|
|
3311 | int errorno; |
|
|
3312 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
3313 | int laststatval; |
|
|
3314 | Stat_t statcache; |
|
|
3315 | }; |
|
|
3316 | |
|
|
3317 | static void |
|
|
3318 | coro_aio_callback (pTHX_ CV *cv) |
|
|
3319 | { |
|
|
3320 | dXSARGS; |
|
|
3321 | AV *state = (AV *)S_GENSUB_ARG; |
|
|
3322 | SV *coro = av_pop (state); |
|
|
3323 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
3324 | |
|
|
3325 | av_extend (state, items - 1); |
|
|
3326 | |
|
|
3327 | sv_upgrade (data_sv, SVt_PV); |
|
|
3328 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
3329 | SvPOK_only (data_sv); |
|
|
3330 | |
|
|
3331 | { |
|
|
3332 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3333 | |
|
|
3334 | data->errorno = errno; |
|
|
3335 | data->laststype = PL_laststype; |
|
|
3336 | data->laststatval = PL_laststatval; |
|
|
3337 | data->statcache = PL_statcache; |
|
|
3338 | } |
|
|
3339 | |
|
|
3340 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
3341 | { |
|
|
3342 | int i; |
|
|
3343 | |
|
|
3344 | for (i = 0; i < items; ++i) |
|
|
3345 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
3346 | } |
|
|
3347 | |
|
|
3348 | av_push (state, data_sv); |
|
|
3349 | |
|
|
3350 | api_ready (aTHX_ coro); |
|
|
3351 | SvREFCNT_dec_NN (coro); |
|
|
3352 | SvREFCNT_dec_NN ((AV *)state); |
|
|
3353 | } |
|
|
3354 | |
|
|
3355 | static int |
|
|
3356 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
3357 | { |
|
|
3358 | AV *state = (AV *)frame->data; |
|
|
3359 | |
|
|
3360 | /* if we are about to throw, return early */ |
|
|
3361 | /* this does not cancel the aio request, but at least */ |
|
|
3362 | /* it quickly returns */ |
|
|
3363 | if (CORO_THROW) |
1066 | return 0; |
3364 | return 0; |
1067 | } |
|
|
1068 | |
3365 | |
1069 | static void |
3366 | /* one element that is an RV? repeat! */ |
1070 | api_schedule (void) |
3367 | if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV) |
1071 | { |
|
|
1072 | struct transfer_args ta; |
|
|
1073 | |
|
|
1074 | prepare_schedule (&ta); |
|
|
1075 | TRANSFER (ta); |
|
|
1076 | } |
|
|
1077 | |
|
|
1078 | static int |
|
|
1079 | api_cede (void) |
|
|
1080 | { |
|
|
1081 | struct transfer_args ta; |
|
|
1082 | |
|
|
1083 | prepare_cede (&ta); |
|
|
1084 | |
|
|
1085 | if (ta.prev != ta.next) |
|
|
1086 | { |
|
|
1087 | TRANSFER (ta); |
|
|
1088 | return 1; |
3368 | return 1; |
|
|
3369 | |
|
|
3370 | /* restore status */ |
|
|
3371 | { |
|
|
3372 | SV *data_sv = av_pop (state); |
|
|
3373 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3374 | |
|
|
3375 | errno = data->errorno; |
|
|
3376 | PL_laststype = data->laststype; |
|
|
3377 | PL_laststatval = data->laststatval; |
|
|
3378 | PL_statcache = data->statcache; |
|
|
3379 | |
|
|
3380 | SvREFCNT_dec_NN (data_sv); |
1089 | } |
3381 | } |
1090 | else |
3382 | |
|
|
3383 | /* push result values */ |
|
|
3384 | { |
|
|
3385 | dSP; |
|
|
3386 | int i; |
|
|
3387 | |
|
|
3388 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
3389 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
3390 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
3391 | |
|
|
3392 | PUTBACK; |
|
|
3393 | } |
|
|
3394 | |
1091 | return 0; |
3395 | return 0; |
1092 | } |
3396 | } |
1093 | |
3397 | |
1094 | static int |
3398 | static void |
1095 | api_cede_notself (void) |
3399 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1096 | { |
3400 | { |
1097 | struct transfer_args ta; |
3401 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
3402 | SV *coro_hv = SvRV (coro_current); |
|
|
3403 | struct coro *coro = SvSTATE_hv (coro_hv); |
1098 | |
3404 | |
1099 | if (prepare_cede_notself (&ta)) |
3405 | /* put our coroutine id on the state arg */ |
1100 | { |
3406 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
1101 | TRANSFER (ta); |
3407 | |
1102 | return 1; |
3408 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
3409 | if (coro->prio) |
1103 | } |
3410 | { |
1104 | else |
3411 | dSP; |
1105 | return 0; |
|
|
1106 | } |
|
|
1107 | |
3412 | |
|
|
3413 | static SV *prio_cv; |
|
|
3414 | static SV *prio_sv; |
|
|
3415 | |
|
|
3416 | if (ecb_expect_false (!prio_cv)) |
|
|
3417 | { |
|
|
3418 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
3419 | prio_sv = newSViv (0); |
|
|
3420 | } |
|
|
3421 | |
|
|
3422 | PUSHMARK (SP); |
|
|
3423 | sv_setiv (prio_sv, coro->prio); |
|
|
3424 | XPUSHs (prio_sv); |
|
|
3425 | |
|
|
3426 | PUTBACK; |
|
|
3427 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
3428 | } |
|
|
3429 | |
|
|
3430 | /* now call the original request */ |
|
|
3431 | { |
|
|
3432 | dSP; |
|
|
3433 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
3434 | int i; |
|
|
3435 | |
|
|
3436 | PUSHMARK (SP); |
|
|
3437 | |
|
|
3438 | /* first push all args to the stack */ |
|
|
3439 | EXTEND (SP, items + 1); |
|
|
3440 | |
|
|
3441 | for (i = 0; i < items; ++i) |
|
|
3442 | PUSHs (arg [i]); |
|
|
3443 | |
|
|
3444 | /* now push the callback closure */ |
|
|
3445 | PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
3446 | |
|
|
3447 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
3448 | PUTBACK; |
|
|
3449 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
3450 | } |
|
|
3451 | |
|
|
3452 | /* now that the request is going, we loop till we have a result */ |
|
|
3453 | frame->data = (void *)state; |
|
|
3454 | frame->prepare = prepare_schedule; |
|
|
3455 | frame->check = slf_check_aio_req; |
|
|
3456 | } |
|
|
3457 | |
|
|
3458 | static void |
|
|
3459 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
3460 | { |
|
|
3461 | dXSARGS; |
|
|
3462 | |
|
|
3463 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
3464 | |
|
|
3465 | XSRETURN_EMPTY; |
|
|
3466 | } |
|
|
3467 | |
|
|
3468 | /*****************************************************************************/ |
|
|
3469 | |
|
|
3470 | #if CORO_CLONE |
|
|
3471 | # include "clone.c" |
|
|
3472 | #endif |
|
|
3473 | |
|
|
3474 | /*****************************************************************************/ |
|
|
3475 | |
|
|
3476 | static SV * |
|
|
3477 | coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro) |
|
|
3478 | { |
|
|
3479 | SV *coro_sv; |
|
|
3480 | struct coro *coro; |
|
|
3481 | MAGIC *mg; |
|
|
3482 | HV *hv; |
|
|
3483 | SV *cb; |
|
|
3484 | int i; |
|
|
3485 | |
|
|
3486 | if (argc > 0) |
|
|
3487 | { |
|
|
3488 | cb = s_get_cv_croak (argv [0]); |
|
|
3489 | |
|
|
3490 | if (!is_coro) |
|
|
3491 | { |
|
|
3492 | if (CvISXSUB (cb)) |
|
|
3493 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
3494 | |
|
|
3495 | if (!CvROOT (cb)) |
|
|
3496 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3497 | } |
|
|
3498 | } |
|
|
3499 | |
|
|
3500 | Newz (0, coro, 1, struct coro); |
|
|
3501 | coro->args = newAV (); |
|
|
3502 | coro->flags = CF_NEW; |
|
|
3503 | |
|
|
3504 | if (coro_first) coro_first->prev = coro; |
|
|
3505 | coro->next = coro_first; |
|
|
3506 | coro_first = coro; |
|
|
3507 | |
|
|
3508 | coro->hv = hv = newHV (); |
|
|
3509 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
3510 | mg->mg_flags |= MGf_DUP; |
|
|
3511 | coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash); |
|
|
3512 | |
|
|
3513 | if (argc > 0) |
|
|
3514 | { |
|
|
3515 | av_extend (coro->args, argc + is_coro - 1); |
|
|
3516 | |
|
|
3517 | if (is_coro) |
|
|
3518 | { |
|
|
3519 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3520 | cb = (SV *)cv_coro_run; |
|
|
3521 | } |
|
|
3522 | |
|
|
3523 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3524 | |
|
|
3525 | for (i = 1; i < argc; i++) |
|
|
3526 | av_push (coro->args, newSVsv (argv [i])); |
|
|
3527 | } |
|
|
3528 | |
|
|
3529 | return coro_sv; |
|
|
3530 | } |
|
|
3531 | |
|
|
3532 | #ifndef __cplusplus |
|
|
3533 | ecb_cold XS(boot_Coro__State); |
|
|
3534 | #endif |
|
|
3535 | |
|
|
3536 | #if CORO_JIT |
|
|
3537 | |
|
|
3538 | static void ecb_noinline ecb_cold |
|
|
3539 | pushav_4uv (pTHX_ UV a, UV b, UV c, UV d) |
|
|
3540 | { |
|
|
3541 | dSP; |
|
|
3542 | AV *av = newAV (); |
|
|
3543 | |
|
|
3544 | av_store (av, 3, newSVuv (d)); |
|
|
3545 | av_store (av, 2, newSVuv (c)); |
|
|
3546 | av_store (av, 1, newSVuv (b)); |
|
|
3547 | av_store (av, 0, newSVuv (a)); |
|
|
3548 | |
|
|
3549 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
3550 | |
|
|
3551 | PUTBACK; |
|
|
3552 | } |
|
|
3553 | |
|
|
3554 | static void ecb_noinline ecb_cold |
|
|
3555 | jit_init (pTHX) |
|
|
3556 | { |
|
|
3557 | dSP; |
|
|
3558 | SV *load, *save; |
|
|
3559 | char *map_base; |
|
|
3560 | char *load_ptr, *save_ptr; |
|
|
3561 | STRLEN load_len, save_len, map_len; |
|
|
3562 | int count; |
|
|
3563 | |
|
|
3564 | eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1); |
|
|
3565 | |
|
|
3566 | PUSHMARK (SP); |
|
|
3567 | #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type)); |
|
|
3568 | #include "state.h" |
|
|
3569 | count = call_pv ("Coro::State::_jit", G_ARRAY); |
|
|
3570 | SPAGAIN; |
|
|
3571 | |
|
|
3572 | save = POPs; save_ptr = SvPVbyte (save, save_len); |
|
|
3573 | load = POPs; load_ptr = SvPVbyte (load, load_len); |
|
|
3574 | |
|
|
3575 | map_len = load_len + save_len + 16; |
|
|
3576 | |
|
|
3577 | map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
|
|
3578 | |
|
|
3579 | assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED)); |
|
|
3580 | |
|
|
3581 | load_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3582 | memcpy (map_base, load_ptr, load_len); |
|
|
3583 | |
|
|
3584 | map_base += (load_len + 15) & ~15; |
|
|
3585 | |
|
|
3586 | save_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3587 | memcpy (map_base, save_ptr, save_len); |
|
|
3588 | |
|
|
3589 | /* we are good citizens and try to make the page read-only, so the evil evil */ |
|
|
3590 | /* hackers might have it a bit more difficult */ |
|
|
3591 | mprotect (map_base, map_len, PROT_READ | PROT_EXEC); |
|
|
3592 | |
|
|
3593 | PUTBACK; |
|
|
3594 | eval_pv ("undef &Coro::State::_jit", 1); |
|
|
3595 | } |
|
|
3596 | |
|
|
3597 | #endif |
|
|
3598 | |
1108 | MODULE = Coro::State PACKAGE = Coro::State |
3599 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1109 | |
3600 | |
1110 | PROTOTYPES: DISABLE |
3601 | PROTOTYPES: DISABLE |
1111 | |
3602 | |
1112 | BOOT: |
3603 | BOOT: |
1113 | { |
3604 | { |
|
|
3605 | #define VARx(name,expr,type) if (sizeof (type) < sizeof (expr)) croak ("FATAL: Coro thread context slot '" # name "' too small for this version of perl."); |
|
|
3606 | #include "state.h" |
1114 | #ifdef USE_ITHREADS |
3607 | #ifdef USE_ITHREADS |
1115 | MUTEX_INIT (&coro_mutex); |
3608 | # if CORO_PTHREAD |
|
|
3609 | coro_thx = PERL_GET_CONTEXT; |
1116 | #endif |
3610 | # endif |
1117 | BOOT_PAGESIZE; |
3611 | #endif |
|
|
3612 | /* perl defines these to check for existance first, but why it doesn't */ |
|
|
3613 | /* just create them one at init time is not clear to me, except for */ |
|
|
3614 | /* programs trying to delete them, but... */ |
|
|
3615 | /* anyway, we declare this as invalid and make sure they are initialised here */ |
|
|
3616 | DEFSV; |
|
|
3617 | ERRSV; |
|
|
3618 | |
|
|
3619 | cctx_current = cctx_new_empty (); |
|
|
3620 | |
|
|
3621 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
3622 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
3623 | |
|
|
3624 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
3625 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
3626 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
3627 | |
|
|
3628 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
3629 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1118 | |
3630 | |
1119 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
3631 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1120 | |
3632 | |
|
|
3633 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
|
|
3634 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1121 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
3635 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
1122 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
|
|
1123 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1124 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1125 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
3636 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1126 | |
3637 | |
1127 | main_mainstack = PL_mainstack; |
3638 | main_mainstack = PL_mainstack; |
|
|
3639 | main_top_env = PL_top_env; |
1128 | |
3640 | |
|
|
3641 | while (main_top_env->je_prev) |
|
|
3642 | main_top_env = main_top_env->je_prev; |
|
|
3643 | |
|
|
3644 | { |
|
|
3645 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
3646 | |
|
|
3647 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
3648 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
3649 | |
|
|
3650 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
3651 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
3652 | } |
|
|
3653 | |
1129 | coroapi.ver = CORO_API_VERSION; |
3654 | coroapi.ver = CORO_API_VERSION; |
|
|
3655 | coroapi.rev = CORO_API_REVISION; |
|
|
3656 | |
1130 | coroapi.transfer = api_transfer; |
3657 | coroapi.transfer = api_transfer; |
1131 | |
3658 | |
|
|
3659 | coroapi.sv_state = SvSTATE_; |
|
|
3660 | coroapi.execute_slf = api_execute_slf; |
|
|
3661 | coroapi.prepare_nop = prepare_nop; |
|
|
3662 | coroapi.prepare_schedule = prepare_schedule; |
|
|
3663 | coroapi.prepare_cede = prepare_cede; |
|
|
3664 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
3665 | |
|
|
3666 | time_init (aTHX); |
|
|
3667 | |
1132 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
3668 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
|
|
3669 | #if CORO_JIT |
|
|
3670 | PUTBACK; |
|
|
3671 | jit_init (aTHX); |
|
|
3672 | SPAGAIN; |
|
|
3673 | #endif |
1133 | } |
3674 | } |
1134 | |
3675 | |
1135 | SV * |
3676 | SV * |
1136 | new (char *klass, ...) |
3677 | new (SV *klass, ...) |
|
|
3678 | ALIAS: |
|
|
3679 | Coro::new = 1 |
1137 | CODE: |
3680 | CODE: |
1138 | { |
3681 | RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix); |
1139 | struct coro *coro; |
|
|
1140 | HV *hv; |
|
|
1141 | int i; |
|
|
1142 | |
|
|
1143 | Newz (0, coro, 1, struct coro); |
|
|
1144 | coro->args = newAV (); |
|
|
1145 | coro->save = CORO_SAVE_ALL; |
|
|
1146 | coro->flags = CF_NEW; |
|
|
1147 | |
|
|
1148 | hv = newHV (); |
|
|
1149 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
|
|
1150 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
1151 | |
|
|
1152 | for (i = 1; i < items; i++) |
|
|
1153 | av_push (coro->args, newSVsv (ST (i))); |
|
|
1154 | } |
|
|
1155 | OUTPUT: |
|
|
1156 | RETVAL |
|
|
1157 | |
|
|
1158 | int |
|
|
1159 | save (SV *coro, int new_save = -1) |
|
|
1160 | CODE: |
|
|
1161 | RETVAL = api_save (coro, new_save); |
|
|
1162 | OUTPUT: |
3682 | OUTPUT: |
1163 | RETVAL |
3683 | RETVAL |
1164 | |
3684 | |
1165 | void |
3685 | void |
1166 | _set_stacklevel (...) |
3686 | transfer (...) |
1167 | ALIAS: |
3687 | PROTOTYPE: $$ |
1168 | Coro::State::transfer = 1 |
|
|
1169 | Coro::schedule = 2 |
|
|
1170 | Coro::cede = 3 |
|
|
1171 | Coro::cede_notself = 4 |
|
|
1172 | CODE: |
|
|
1173 | { |
|
|
1174 | struct transfer_args ta; |
|
|
1175 | |
|
|
1176 | switch (ix) |
|
|
1177 | { |
|
|
1178 | case 0: |
|
|
1179 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1180 | ta.next = 0; |
|
|
1181 | break; |
|
|
1182 | |
|
|
1183 | case 1: |
|
|
1184 | if (items != 2) |
|
|
1185 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1186 | |
|
|
1187 | prepare_transfer (&ta, ST (0), ST (1)); |
|
|
1188 | break; |
|
|
1189 | |
|
|
1190 | case 2: |
|
|
1191 | prepare_schedule (&ta); |
|
|
1192 | break; |
|
|
1193 | |
|
|
1194 | case 3: |
|
|
1195 | prepare_cede (&ta); |
|
|
1196 | break; |
|
|
1197 | |
|
|
1198 | case 4: |
|
|
1199 | if (!prepare_cede_notself (&ta)) |
|
|
1200 | XSRETURN_EMPTY; |
|
|
1201 | |
|
|
1202 | break; |
|
|
1203 | } |
|
|
1204 | |
|
|
1205 | BARRIER; |
|
|
1206 | TRANSFER (ta); |
|
|
1207 | } |
|
|
1208 | |
|
|
1209 | bool |
|
|
1210 | _destroy (SV *coro_sv) |
|
|
1211 | CODE: |
3688 | CODE: |
1212 | RETVAL = coro_state_destroy (SvSTATE (coro_sv)); |
3689 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
|
|
3690 | |
|
|
3691 | SV * |
|
|
3692 | clone (Coro::State coro) |
|
|
3693 | CODE: |
|
|
3694 | { |
|
|
3695 | #if CORO_CLONE |
|
|
3696 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3697 | MAGIC *mg; |
|
|
3698 | /* TODO: too much duplication */ |
|
|
3699 | ncoro->hv = newHV (); |
|
|
3700 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3701 | mg->mg_flags |= MGf_DUP; |
|
|
3702 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3703 | #else |
|
|
3704 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3705 | #endif |
|
|
3706 | } |
1213 | OUTPUT: |
3707 | OUTPUT: |
1214 | RETVAL |
3708 | RETVAL |
1215 | |
3709 | |
1216 | void |
3710 | int |
1217 | _exit (code) |
3711 | cctx_stacksize (int new_stacksize = 0) |
1218 | int code |
3712 | PROTOTYPE: ;$ |
1219 | PROTOTYPE: $ |
|
|
1220 | CODE: |
3713 | CODE: |
1221 | _exit (code); |
3714 | RETVAL = cctx_stacksize; |
|
|
3715 | if (new_stacksize) |
|
|
3716 | { |
|
|
3717 | cctx_stacksize = new_stacksize; |
|
|
3718 | ++cctx_gen; |
|
|
3719 | } |
|
|
3720 | OUTPUT: |
|
|
3721 | RETVAL |
|
|
3722 | |
|
|
3723 | int |
|
|
3724 | cctx_max_idle (int max_idle = 0) |
|
|
3725 | PROTOTYPE: ;$ |
|
|
3726 | CODE: |
|
|
3727 | RETVAL = cctx_max_idle; |
|
|
3728 | if (max_idle > 1) |
|
|
3729 | cctx_max_idle = max_idle; |
|
|
3730 | OUTPUT: |
|
|
3731 | RETVAL |
1222 | |
3732 | |
1223 | int |
3733 | int |
1224 | cctx_count () |
3734 | cctx_count () |
|
|
3735 | PROTOTYPE: |
1225 | CODE: |
3736 | CODE: |
1226 | RETVAL = cctx_count; |
3737 | RETVAL = cctx_count; |
1227 | OUTPUT: |
3738 | OUTPUT: |
1228 | RETVAL |
3739 | RETVAL |
1229 | |
3740 | |
1230 | int |
3741 | int |
1231 | cctx_idle () |
3742 | cctx_idle () |
|
|
3743 | PROTOTYPE: |
1232 | CODE: |
3744 | CODE: |
1233 | RETVAL = cctx_idle; |
3745 | RETVAL = cctx_idle; |
1234 | OUTPUT: |
3746 | OUTPUT: |
1235 | RETVAL |
3747 | RETVAL |
1236 | |
3748 | |
|
|
3749 | void |
|
|
3750 | list () |
|
|
3751 | PROTOTYPE: |
|
|
3752 | PPCODE: |
|
|
3753 | { |
|
|
3754 | struct coro *coro; |
|
|
3755 | for (coro = coro_first; coro; coro = coro->next) |
|
|
3756 | if (coro->hv) |
|
|
3757 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
3758 | } |
|
|
3759 | |
|
|
3760 | void |
|
|
3761 | call (Coro::State coro, SV *coderef) |
|
|
3762 | ALIAS: |
|
|
3763 | eval = 1 |
|
|
3764 | CODE: |
|
|
3765 | { |
|
|
3766 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
|
|
3767 | { |
|
|
3768 | struct coro *current = SvSTATE_current; |
|
|
3769 | struct CoroSLF slf_save; |
|
|
3770 | |
|
|
3771 | if (current != coro) |
|
|
3772 | { |
|
|
3773 | PUTBACK; |
|
|
3774 | save_perl (aTHX_ current); |
|
|
3775 | load_perl (aTHX_ coro); |
|
|
3776 | /* the coro is most likely in an active SLF call. |
|
|
3777 | * while not strictly required (the code we execute is |
|
|
3778 | * not allowed to call any SLF functions), it's cleaner |
|
|
3779 | * to reinitialise the slf_frame and restore it later. |
|
|
3780 | * This might one day allow us to actually do SLF calls |
|
|
3781 | * from code executed here. |
|
|
3782 | */ |
|
|
3783 | slf_save = slf_frame; |
|
|
3784 | slf_frame.prepare = 0; |
|
|
3785 | SPAGAIN; |
|
|
3786 | } |
|
|
3787 | |
|
|
3788 | PUSHSTACK; |
|
|
3789 | |
|
|
3790 | PUSHMARK (SP); |
|
|
3791 | PUTBACK; |
|
|
3792 | |
|
|
3793 | if (ix) |
|
|
3794 | eval_sv (coderef, 0); |
|
|
3795 | else |
|
|
3796 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3797 | |
|
|
3798 | POPSTACK; |
|
|
3799 | SPAGAIN; |
|
|
3800 | |
|
|
3801 | if (current != coro) |
|
|
3802 | { |
|
|
3803 | PUTBACK; |
|
|
3804 | slf_frame = slf_save; |
|
|
3805 | save_perl (aTHX_ coro); |
|
|
3806 | load_perl (aTHX_ current); |
|
|
3807 | SPAGAIN; |
|
|
3808 | } |
|
|
3809 | } |
|
|
3810 | } |
|
|
3811 | |
|
|
3812 | SV * |
|
|
3813 | is_ready (Coro::State coro) |
|
|
3814 | PROTOTYPE: $ |
|
|
3815 | ALIAS: |
|
|
3816 | is_ready = CF_READY |
|
|
3817 | is_running = CF_RUNNING |
|
|
3818 | is_new = CF_NEW |
|
|
3819 | is_destroyed = CF_ZOMBIE |
|
|
3820 | is_zombie = CF_ZOMBIE |
|
|
3821 | is_suspended = CF_SUSPENDED |
|
|
3822 | CODE: |
|
|
3823 | RETVAL = boolSV (coro->flags & ix); |
|
|
3824 | OUTPUT: |
|
|
3825 | RETVAL |
|
|
3826 | |
|
|
3827 | void |
|
|
3828 | throw (SV *self, SV *exception = &PL_sv_undef) |
|
|
3829 | PROTOTYPE: $;$ |
|
|
3830 | CODE: |
|
|
3831 | { |
|
|
3832 | struct coro *coro = SvSTATE (self); |
|
|
3833 | struct coro *current = SvSTATE_current; |
|
|
3834 | SV **exceptionp = coro == current ? &CORO_THROW : &coro->except; |
|
|
3835 | SvREFCNT_dec (*exceptionp); |
|
|
3836 | SvGETMAGIC (exception); |
|
|
3837 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
|
|
3838 | |
|
|
3839 | api_ready (aTHX_ self); |
|
|
3840 | } |
|
|
3841 | |
|
|
3842 | void |
|
|
3843 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3844 | PROTOTYPE: $;$ |
|
|
3845 | C_ARGS: aTHX_ coro, flags |
|
|
3846 | |
|
|
3847 | SV * |
|
|
3848 | has_cctx (Coro::State coro) |
|
|
3849 | PROTOTYPE: $ |
|
|
3850 | CODE: |
|
|
3851 | /* maybe manage the running flag differently */ |
|
|
3852 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
|
|
3853 | OUTPUT: |
|
|
3854 | RETVAL |
|
|
3855 | |
|
|
3856 | int |
|
|
3857 | is_traced (Coro::State coro) |
|
|
3858 | PROTOTYPE: $ |
|
|
3859 | CODE: |
|
|
3860 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
3861 | OUTPUT: |
|
|
3862 | RETVAL |
|
|
3863 | |
|
|
3864 | UV |
|
|
3865 | rss (Coro::State coro) |
|
|
3866 | PROTOTYPE: $ |
|
|
3867 | ALIAS: |
|
|
3868 | usecount = 1 |
|
|
3869 | CODE: |
|
|
3870 | switch (ix) |
|
|
3871 | { |
|
|
3872 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
3873 | case 1: RETVAL = coro->usecount; break; |
|
|
3874 | } |
|
|
3875 | OUTPUT: |
|
|
3876 | RETVAL |
|
|
3877 | |
|
|
3878 | void |
|
|
3879 | force_cctx () |
|
|
3880 | PROTOTYPE: |
|
|
3881 | CODE: |
|
|
3882 | cctx_current->idle_sp = 0; |
|
|
3883 | |
|
|
3884 | void |
|
|
3885 | swap_defsv (Coro::State self) |
|
|
3886 | PROTOTYPE: $ |
|
|
3887 | ALIAS: |
|
|
3888 | swap_defav = 1 |
|
|
3889 | CODE: |
|
|
3890 | if (!self->slot) |
|
|
3891 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
3892 | else |
|
|
3893 | { |
|
|
3894 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
3895 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
3896 | |
|
|
3897 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
3898 | } |
|
|
3899 | |
|
|
3900 | void |
|
|
3901 | cancel (Coro::State self) |
|
|
3902 | CODE: |
|
|
3903 | coro_state_destroy (aTHX_ self); |
|
|
3904 | |
|
|
3905 | SV * |
|
|
3906 | enable_times (int enabled = enable_times) |
|
|
3907 | CODE: |
|
|
3908 | { |
|
|
3909 | RETVAL = boolSV (enable_times); |
|
|
3910 | |
|
|
3911 | if (enabled != enable_times) |
|
|
3912 | { |
|
|
3913 | enable_times = enabled; |
|
|
3914 | |
|
|
3915 | coro_times_update (); |
|
|
3916 | (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current)); |
|
|
3917 | } |
|
|
3918 | } |
|
|
3919 | OUTPUT: |
|
|
3920 | RETVAL |
|
|
3921 | |
|
|
3922 | void |
|
|
3923 | times (Coro::State self) |
|
|
3924 | PPCODE: |
|
|
3925 | { |
|
|
3926 | struct coro *current = SvSTATE (coro_current); |
|
|
3927 | |
|
|
3928 | if (ecb_expect_false (current == self)) |
|
|
3929 | { |
|
|
3930 | coro_times_update (); |
|
|
3931 | coro_times_add (SvSTATE (coro_current)); |
|
|
3932 | } |
|
|
3933 | |
|
|
3934 | EXTEND (SP, 2); |
|
|
3935 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
|
|
3936 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
|
|
3937 | |
|
|
3938 | if (ecb_expect_false (current == self)) |
|
|
3939 | coro_times_sub (SvSTATE (coro_current)); |
|
|
3940 | } |
|
|
3941 | |
|
|
3942 | void |
|
|
3943 | swap_sv (Coro::State coro, SV *sva, SV *svb) |
|
|
3944 | CODE: |
|
|
3945 | { |
|
|
3946 | struct coro *current = SvSTATE_current; |
|
|
3947 | AV *swap_sv; |
|
|
3948 | int i; |
|
|
3949 | |
|
|
3950 | sva = SvRV (sva); |
|
|
3951 | svb = SvRV (svb); |
|
|
3952 | |
|
|
3953 | if (current == coro) |
|
|
3954 | SWAP_SVS_LEAVE (current); |
|
|
3955 | |
|
|
3956 | if (!coro->swap_sv) |
|
|
3957 | coro->swap_sv = newAV (); |
|
|
3958 | |
|
|
3959 | swap_sv = coro->swap_sv; |
|
|
3960 | |
|
|
3961 | for (i = AvFILLp (swap_sv) - 1; i >= 0; i -= 2) |
|
|
3962 | { |
|
|
3963 | SV *a = AvARRAY (swap_sv)[i ]; |
|
|
3964 | SV *b = AvARRAY (swap_sv)[i + 1]; |
|
|
3965 | |
|
|
3966 | if (a == sva && b == svb) |
|
|
3967 | { |
|
|
3968 | SvREFCNT_dec_NN (a); |
|
|
3969 | SvREFCNT_dec_NN (b); |
|
|
3970 | |
|
|
3971 | for (; i <= AvFILLp (swap_sv) - 2; i++) |
|
|
3972 | AvARRAY (swap_sv)[i] = AvARRAY (swap_sv)[i + 2]; |
|
|
3973 | |
|
|
3974 | AvFILLp (swap_sv) -= 2; |
|
|
3975 | |
|
|
3976 | goto removed; |
|
|
3977 | } |
|
|
3978 | } |
|
|
3979 | |
|
|
3980 | av_push (swap_sv, SvREFCNT_inc_NN (sva)); |
|
|
3981 | av_push (swap_sv, SvREFCNT_inc_NN (svb)); |
|
|
3982 | |
|
|
3983 | removed: |
|
|
3984 | |
|
|
3985 | if (current == coro) |
|
|
3986 | SWAP_SVS_ENTER (current); |
|
|
3987 | } |
|
|
3988 | |
|
|
3989 | |
1237 | MODULE = Coro::State PACKAGE = Coro |
3990 | MODULE = Coro::State PACKAGE = Coro |
1238 | |
3991 | |
1239 | BOOT: |
3992 | BOOT: |
1240 | { |
3993 | { |
1241 | int i; |
3994 | if (SVt_LAST > 32) |
|
|
3995 | croak ("Coro internal error: SVt_LAST > 32, swap_sv might need adjustment"); |
1242 | |
3996 | |
|
|
3997 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
3998 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
3999 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
|
|
4000 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
|
|
4001 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
4002 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
4003 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
4004 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
|
|
4005 | |
|
|
4006 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
4007 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
4008 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
4009 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
|
|
4010 | |
1243 | coro_stash = gv_stashpv ("Coro", TRUE); |
4011 | coro_stash = gv_stashpv ("Coro", TRUE); |
1244 | |
4012 | |
1245 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
4013 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
1246 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
4014 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
1247 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
4015 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
1248 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
4016 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
1249 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
4017 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
1250 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
4018 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
1251 | |
|
|
1252 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1253 | SvREADONLY_on (coro_current); |
|
|
1254 | |
|
|
1255 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
1256 | coro_ready[i] = newAV (); |
|
|
1257 | |
4019 | |
1258 | { |
4020 | { |
1259 | SV *sv = perl_get_sv("Coro::API", 1); |
4021 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1260 | |
4022 | |
1261 | coroapi.schedule = api_schedule; |
4023 | coroapi.schedule = api_schedule; |
1262 | coroapi.save = api_save; |
4024 | coroapi.schedule_to = api_schedule_to; |
1263 | coroapi.cede = api_cede; |
4025 | coroapi.cede = api_cede; |
1264 | coroapi.cede_notself = api_cede_notself; |
4026 | coroapi.cede_notself = api_cede_notself; |
1265 | coroapi.ready = api_ready; |
4027 | coroapi.ready = api_ready; |
1266 | coroapi.is_ready = api_is_ready; |
4028 | coroapi.is_ready = api_is_ready; |
1267 | coroapi.nready = &coro_nready; |
4029 | coroapi.nready = coro_nready; |
1268 | coroapi.current = coro_current; |
4030 | coroapi.current = coro_current; |
1269 | |
4031 | |
|
|
4032 | coroapi.enterleave_hook = api_enterleave_hook; |
|
|
4033 | coroapi.enterleave_unhook = api_enterleave_unhook; |
|
|
4034 | coroapi.enterleave_scope_hook = api_enterleave_scope_hook; |
|
|
4035 | |
1270 | GCoroAPI = &coroapi; |
4036 | /*GCoroAPI = &coroapi;*/ |
1271 | sv_setiv (sv, (IV)&coroapi); |
4037 | sv_setiv (sv, (IV)&coroapi); |
1272 | SvREADONLY_on (sv); |
4038 | SvREADONLY_on (sv); |
1273 | } |
4039 | } |
1274 | } |
4040 | } |
|
|
4041 | |
|
|
4042 | SV * |
|
|
4043 | async (...) |
|
|
4044 | PROTOTYPE: &@ |
|
|
4045 | CODE: |
|
|
4046 | RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); |
|
|
4047 | api_ready (aTHX_ RETVAL); |
|
|
4048 | OUTPUT: |
|
|
4049 | RETVAL |
|
|
4050 | |
|
|
4051 | void |
|
|
4052 | _destroy (Coro::State coro) |
|
|
4053 | CODE: |
|
|
4054 | /* used by the manager thread */ |
|
|
4055 | coro_state_destroy (aTHX_ coro); |
|
|
4056 | |
|
|
4057 | void |
|
|
4058 | on_destroy (Coro::State coro, SV *cb) |
|
|
4059 | CODE: |
|
|
4060 | coro_push_on_destroy (aTHX_ coro, newSVsv (cb)); |
|
|
4061 | |
|
|
4062 | void |
|
|
4063 | join (...) |
|
|
4064 | CODE: |
|
|
4065 | CORO_EXECUTE_SLF_XS (slf_init_join); |
|
|
4066 | |
|
|
4067 | void |
|
|
4068 | terminate (...) |
|
|
4069 | CODE: |
|
|
4070 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
4071 | |
|
|
4072 | void |
|
|
4073 | cancel (...) |
|
|
4074 | CODE: |
|
|
4075 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
|
|
4076 | |
|
|
4077 | int |
|
|
4078 | safe_cancel (Coro::State self, ...) |
|
|
4079 | C_ARGS: aTHX_ self, &ST (1), items - 1 |
|
|
4080 | |
|
|
4081 | void |
|
|
4082 | schedule (...) |
|
|
4083 | CODE: |
|
|
4084 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
4085 | |
|
|
4086 | void |
|
|
4087 | schedule_to (...) |
|
|
4088 | CODE: |
|
|
4089 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
4090 | |
|
|
4091 | void |
|
|
4092 | cede_to (...) |
|
|
4093 | CODE: |
|
|
4094 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
4095 | |
|
|
4096 | void |
|
|
4097 | cede (...) |
|
|
4098 | CODE: |
|
|
4099 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
4100 | |
|
|
4101 | void |
|
|
4102 | cede_notself (...) |
|
|
4103 | CODE: |
|
|
4104 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1275 | |
4105 | |
1276 | void |
4106 | void |
1277 | _set_current (SV *current) |
4107 | _set_current (SV *current) |
1278 | PROTOTYPE: $ |
4108 | PROTOTYPE: $ |
1279 | CODE: |
4109 | CODE: |
1280 | SvREFCNT_dec (SvRV (coro_current)); |
4110 | SvREFCNT_dec_NN (SvRV (coro_current)); |
1281 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
4111 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
4112 | |
|
|
4113 | void |
|
|
4114 | _set_readyhook (SV *hook) |
|
|
4115 | PROTOTYPE: $ |
|
|
4116 | CODE: |
|
|
4117 | SvREFCNT_dec (coro_readyhook); |
|
|
4118 | SvGETMAGIC (hook); |
|
|
4119 | if (SvOK (hook)) |
|
|
4120 | { |
|
|
4121 | coro_readyhook = newSVsv (hook); |
|
|
4122 | CORO_READYHOOK = invoke_sv_ready_hook_helper; |
|
|
4123 | } |
|
|
4124 | else |
|
|
4125 | { |
|
|
4126 | coro_readyhook = 0; |
|
|
4127 | CORO_READYHOOK = 0; |
|
|
4128 | } |
1282 | |
4129 | |
1283 | int |
4130 | int |
1284 | prio (Coro::State coro, int newprio = 0) |
4131 | prio (Coro::State coro, int newprio = 0) |
|
|
4132 | PROTOTYPE: $;$ |
1285 | ALIAS: |
4133 | ALIAS: |
1286 | nice = 1 |
4134 | nice = 1 |
1287 | CODE: |
4135 | CODE: |
1288 | { |
4136 | { |
1289 | RETVAL = coro->prio; |
4137 | RETVAL = coro->prio; |
… | |
… | |
1291 | if (items > 1) |
4139 | if (items > 1) |
1292 | { |
4140 | { |
1293 | if (ix) |
4141 | if (ix) |
1294 | newprio = coro->prio - newprio; |
4142 | newprio = coro->prio - newprio; |
1295 | |
4143 | |
1296 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
4144 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
1297 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
4145 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
1298 | |
4146 | |
1299 | coro->prio = newprio; |
4147 | coro->prio = newprio; |
1300 | } |
4148 | } |
1301 | } |
4149 | } |
1302 | OUTPUT: |
4150 | OUTPUT: |
… | |
… | |
1304 | |
4152 | |
1305 | SV * |
4153 | SV * |
1306 | ready (SV *self) |
4154 | ready (SV *self) |
1307 | PROTOTYPE: $ |
4155 | PROTOTYPE: $ |
1308 | CODE: |
4156 | CODE: |
1309 | RETVAL = boolSV (api_ready (self)); |
4157 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1310 | OUTPUT: |
|
|
1311 | RETVAL |
|
|
1312 | |
|
|
1313 | SV * |
|
|
1314 | is_ready (SV *self) |
|
|
1315 | PROTOTYPE: $ |
|
|
1316 | CODE: |
|
|
1317 | RETVAL = boolSV (api_is_ready (self)); |
|
|
1318 | OUTPUT: |
4158 | OUTPUT: |
1319 | RETVAL |
4159 | RETVAL |
1320 | |
4160 | |
1321 | int |
4161 | int |
1322 | nready (...) |
4162 | nready (...) |
… | |
… | |
1324 | CODE: |
4164 | CODE: |
1325 | RETVAL = coro_nready; |
4165 | RETVAL = coro_nready; |
1326 | OUTPUT: |
4166 | OUTPUT: |
1327 | RETVAL |
4167 | RETVAL |
1328 | |
4168 | |
1329 | MODULE = Coro::State PACKAGE = Coro::AIO |
4169 | void |
|
|
4170 | suspend (Coro::State self) |
|
|
4171 | PROTOTYPE: $ |
|
|
4172 | CODE: |
|
|
4173 | self->flags |= CF_SUSPENDED; |
|
|
4174 | |
|
|
4175 | void |
|
|
4176 | resume (Coro::State self) |
|
|
4177 | PROTOTYPE: $ |
|
|
4178 | CODE: |
|
|
4179 | self->flags &= ~CF_SUSPENDED; |
|
|
4180 | |
|
|
4181 | void |
|
|
4182 | _pool_handler (...) |
|
|
4183 | CODE: |
|
|
4184 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
|
|
4185 | |
|
|
4186 | void |
|
|
4187 | async_pool (SV *cv, ...) |
|
|
4188 | PROTOTYPE: &@ |
|
|
4189 | PPCODE: |
|
|
4190 | { |
|
|
4191 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
4192 | AV *av = newAV (); |
|
|
4193 | SV *cb = ST (0); |
|
|
4194 | int i; |
|
|
4195 | |
|
|
4196 | av_extend (av, items - 2); |
|
|
4197 | for (i = 1; i < items; ++i) |
|
|
4198 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
4199 | |
|
|
4200 | if ((SV *)hv == &PL_sv_undef) |
|
|
4201 | { |
|
|
4202 | SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1); |
|
|
4203 | hv = (HV *)SvREFCNT_inc_NN (SvRV (sv)); |
|
|
4204 | SvREFCNT_dec_NN (sv); |
|
|
4205 | } |
|
|
4206 | |
|
|
4207 | { |
|
|
4208 | struct coro *coro = SvSTATE_hv (hv); |
|
|
4209 | |
|
|
4210 | assert (!coro->invoke_cb); |
|
|
4211 | assert (!coro->invoke_av); |
|
|
4212 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
4213 | coro->invoke_av = av; |
|
|
4214 | } |
|
|
4215 | |
|
|
4216 | api_ready (aTHX_ (SV *)hv); |
|
|
4217 | |
|
|
4218 | if (GIMME_V != G_VOID) |
|
|
4219 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
4220 | else |
|
|
4221 | SvREFCNT_dec_NN (hv); |
|
|
4222 | } |
1330 | |
4223 | |
1331 | SV * |
4224 | SV * |
1332 | _get_state () |
4225 | rouse_cb () |
|
|
4226 | PROTOTYPE: |
1333 | CODE: |
4227 | CODE: |
1334 | { |
4228 | RETVAL = coro_new_rouse_cb (aTHX); |
1335 | struct io_state *data; |
|
|
1336 | |
|
|
1337 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1338 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1339 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1340 | SvPOK_only (RETVAL); |
|
|
1341 | |
|
|
1342 | data->errorno = errno; |
|
|
1343 | data->laststype = PL_laststype; |
|
|
1344 | data->laststatval = PL_laststatval; |
|
|
1345 | data->statcache = PL_statcache; |
|
|
1346 | } |
|
|
1347 | OUTPUT: |
4229 | OUTPUT: |
1348 | RETVAL |
4230 | RETVAL |
1349 | |
4231 | |
1350 | void |
4232 | void |
1351 | _set_state (char *data_) |
4233 | rouse_wait (...) |
|
|
4234 | PROTOTYPE: ;$ |
|
|
4235 | PPCODE: |
|
|
4236 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
4237 | |
|
|
4238 | void |
|
|
4239 | on_enter (SV *block) |
|
|
4240 | ALIAS: |
|
|
4241 | on_leave = 1 |
1352 | PROTOTYPE: $ |
4242 | PROTOTYPE: & |
1353 | CODE: |
4243 | CODE: |
1354 | { |
4244 | { |
1355 | struct io_state *data = (void *)data_; |
4245 | struct coro *coro = SvSTATE_current; |
|
|
4246 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
1356 | |
4247 | |
1357 | errno = data->errorno; |
4248 | block = s_get_cv_croak (block); |
1358 | PL_laststype = data->laststype; |
|
|
1359 | PL_laststatval = data->laststatval; |
|
|
1360 | PL_statcache = data->statcache; |
|
|
1361 | } |
|
|
1362 | |
4249 | |
|
|
4250 | if (!*avp) |
|
|
4251 | *avp = newAV (); |
|
|
4252 | |
|
|
4253 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
4254 | |
|
|
4255 | if (!ix) |
|
|
4256 | on_enterleave_call (aTHX_ block); |
|
|
4257 | |
|
|
4258 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4259 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
4260 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4261 | } |
|
|
4262 | |
|
|
4263 | |
|
|
4264 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
4265 | |
|
|
4266 | BOOT: |
|
|
4267 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
4268 | |
|
|
4269 | |
|
|
4270 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
4271 | |
|
|
4272 | SV * |
|
|
4273 | new (SV *klass, SV *count = 0) |
|
|
4274 | CODE: |
|
|
4275 | { |
|
|
4276 | int semcnt = 1; |
|
|
4277 | |
|
|
4278 | if (count) |
|
|
4279 | { |
|
|
4280 | SvGETMAGIC (count); |
|
|
4281 | |
|
|
4282 | if (SvOK (count)) |
|
|
4283 | semcnt = SvIV (count); |
|
|
4284 | } |
|
|
4285 | |
|
|
4286 | RETVAL = sv_bless ( |
|
|
4287 | coro_waitarray_new (aTHX_ semcnt), |
|
|
4288 | GvSTASH (CvGV (cv)) |
|
|
4289 | ); |
|
|
4290 | } |
|
|
4291 | OUTPUT: |
|
|
4292 | RETVAL |
|
|
4293 | |
|
|
4294 | # helper for Coro::Channel and others |
|
|
4295 | SV * |
|
|
4296 | _alloc (int count) |
|
|
4297 | CODE: |
|
|
4298 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
4299 | OUTPUT: |
|
|
4300 | RETVAL |
|
|
4301 | |
|
|
4302 | SV * |
|
|
4303 | count (SV *self) |
|
|
4304 | CODE: |
|
|
4305 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
4306 | OUTPUT: |
|
|
4307 | RETVAL |
|
|
4308 | |
|
|
4309 | void |
|
|
4310 | up (SV *self) |
|
|
4311 | CODE: |
|
|
4312 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), 1); |
|
|
4313 | |
|
|
4314 | void |
|
|
4315 | adjust (SV *self, int adjust) |
|
|
4316 | CODE: |
|
|
4317 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), adjust); |
|
|
4318 | |
|
|
4319 | void |
|
|
4320 | down (...) |
|
|
4321 | CODE: |
|
|
4322 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
4323 | |
|
|
4324 | void |
|
|
4325 | wait (...) |
|
|
4326 | CODE: |
|
|
4327 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
4328 | |
|
|
4329 | void |
|
|
4330 | try (SV *self) |
|
|
4331 | PPCODE: |
|
|
4332 | { |
|
|
4333 | AV *av = (AV *)SvRV (self); |
|
|
4334 | SV *count_sv = AvARRAY (av)[0]; |
|
|
4335 | IV count = SvIVX (count_sv); |
|
|
4336 | |
|
|
4337 | if (count > 0) |
|
|
4338 | { |
|
|
4339 | --count; |
|
|
4340 | SvIVX (count_sv) = count; |
|
|
4341 | XSRETURN_YES; |
|
|
4342 | } |
|
|
4343 | else |
|
|
4344 | XSRETURN_NO; |
|
|
4345 | } |
|
|
4346 | |
|
|
4347 | void |
|
|
4348 | waiters (SV *self) |
|
|
4349 | PPCODE: |
|
|
4350 | { |
|
|
4351 | AV *av = (AV *)SvRV (self); |
|
|
4352 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
4353 | |
|
|
4354 | if (GIMME_V == G_SCALAR) |
|
|
4355 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
4356 | else |
|
|
4357 | { |
|
|
4358 | int i; |
|
|
4359 | EXTEND (SP, wcount); |
|
|
4360 | for (i = 1; i <= wcount; ++i) |
|
|
4361 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
4362 | } |
|
|
4363 | } |
|
|
4364 | |
|
|
4365 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
4366 | |
|
|
4367 | void |
|
|
4368 | _may_delete (SV *sem, int count, unsigned int extra_refs) |
|
|
4369 | PPCODE: |
|
|
4370 | { |
|
|
4371 | AV *av = (AV *)SvRV (sem); |
|
|
4372 | |
|
|
4373 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
|
|
4374 | && AvFILLp (av) == 0 /* no waiters, just count */ |
|
|
4375 | && SvIV (AvARRAY (av)[0]) == count) |
|
|
4376 | XSRETURN_YES; |
|
|
4377 | |
|
|
4378 | XSRETURN_NO; |
|
|
4379 | } |
|
|
4380 | |
|
|
4381 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
4382 | |
|
|
4383 | SV * |
|
|
4384 | new (SV *klass) |
|
|
4385 | CODE: |
|
|
4386 | RETVAL = sv_bless ( |
|
|
4387 | coro_waitarray_new (aTHX_ 0), |
|
|
4388 | GvSTASH (CvGV (cv)) |
|
|
4389 | ); |
|
|
4390 | OUTPUT: |
|
|
4391 | RETVAL |
|
|
4392 | |
|
|
4393 | void |
|
|
4394 | wait (...) |
|
|
4395 | CODE: |
|
|
4396 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
4397 | |
|
|
4398 | void |
|
|
4399 | broadcast (SV *self) |
|
|
4400 | CODE: |
|
|
4401 | { |
|
|
4402 | AV *av = (AV *)SvRV (self); |
|
|
4403 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
4404 | } |
|
|
4405 | |
|
|
4406 | void |
|
|
4407 | send (SV *self) |
|
|
4408 | CODE: |
|
|
4409 | { |
|
|
4410 | AV *av = (AV *)SvRV (self); |
|
|
4411 | |
|
|
4412 | if (AvFILLp (av)) |
|
|
4413 | coro_signal_wake (aTHX_ av, 1); |
|
|
4414 | else |
|
|
4415 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
4416 | } |
|
|
4417 | |
|
|
4418 | IV |
|
|
4419 | awaited (SV *self) |
|
|
4420 | CODE: |
|
|
4421 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
4422 | OUTPUT: |
|
|
4423 | RETVAL |
|
|
4424 | |
|
|
4425 | |
|
|
4426 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
4427 | |
|
|
4428 | BOOT: |
|
|
4429 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
4430 | |
|
|
4431 | void |
|
|
4432 | _schedule (...) |
|
|
4433 | CODE: |
|
|
4434 | { |
|
|
4435 | static int incede; |
|
|
4436 | |
|
|
4437 | api_cede_notself (aTHX); |
|
|
4438 | |
|
|
4439 | ++incede; |
|
|
4440 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
4441 | ; |
|
|
4442 | |
|
|
4443 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
4444 | if (coro_nready >= incede) |
|
|
4445 | { |
|
|
4446 | PUSHMARK (SP); |
|
|
4447 | PUTBACK; |
|
|
4448 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
4449 | } |
|
|
4450 | |
|
|
4451 | --incede; |
|
|
4452 | } |
|
|
4453 | |
|
|
4454 | |
|
|
4455 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
4456 | |
|
|
4457 | void |
|
|
4458 | _register (char *target, char *proto, SV *req) |
|
|
4459 | CODE: |
|
|
4460 | { |
|
|
4461 | SV *req_cv = s_get_cv_croak (req); |
|
|
4462 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
4463 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
4464 | sv_setpv ((SV *)slf_cv, proto); |
|
|
4465 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
4466 | } |
|
|
4467 | |
|
|
4468 | MODULE = Coro::State PACKAGE = Coro::Select |
|
|
4469 | |
|
|
4470 | void |
|
|
4471 | patch_pp_sselect () |
|
|
4472 | CODE: |
|
|
4473 | if (!coro_old_pp_sselect) |
|
|
4474 | { |
|
|
4475 | coro_select_select = (SV *)get_cv ("Coro::Select::select", 0); |
|
|
4476 | coro_old_pp_sselect = PL_ppaddr [OP_SSELECT]; |
|
|
4477 | PL_ppaddr [OP_SSELECT] = coro_pp_sselect; |
|
|
4478 | } |
|
|
4479 | |
|
|
4480 | void |
|
|
4481 | unpatch_pp_sselect () |
|
|
4482 | CODE: |
|
|
4483 | if (coro_old_pp_sselect) |
|
|
4484 | { |
|
|
4485 | PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; |
|
|
4486 | coro_old_pp_sselect = 0; |
|
|
4487 | } |
|
|
4488 | |
|
|
4489 | MODULE = Coro::State PACKAGE = Coro::Util |
|
|
4490 | |
|
|
4491 | void |
|
|
4492 | _exit (int code) |
|
|
4493 | CODE: |
|
|
4494 | _exit (code); |
|
|
4495 | |
|
|
4496 | NV |
|
|
4497 | time () |
|
|
4498 | CODE: |
|
|
4499 | RETVAL = nvtime (aTHX); |
|
|
4500 | OUTPUT: |
|
|
4501 | RETVAL |
|
|
4502 | |
|
|
4503 | NV |
|
|
4504 | gettimeofday () |
|
|
4505 | PPCODE: |
|
|
4506 | { |
|
|
4507 | UV tv [2]; |
|
|
4508 | u2time (aTHX_ tv); |
|
|
4509 | EXTEND (SP, 2); |
|
|
4510 | PUSHs (sv_2mortal (newSVuv (tv [0]))); |
|
|
4511 | PUSHs (sv_2mortal (newSVuv (tv [1]))); |
|
|
4512 | } |
|
|
4513 | |