1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
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2 | |
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3 | #define PERL_NO_GET_CONTEXT |
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4 | #define PERL_EXT |
2 | |
5 | |
3 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
4 | #include "perl.h" |
7 | #include "perl.h" |
5 | #include "XSUB.h" |
8 | #include "XSUB.h" |
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9 | #include "perliol.h" |
6 | |
10 | |
7 | #include "patchlevel.h" |
11 | #include "patchlevel.h" |
8 | |
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9 | #if USE_VALGRIND |
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10 | # include <valgrind/valgrind.h> |
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11 | #endif |
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12 | |
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13 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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14 | (PERL_REVISION > (a) \ |
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15 | || (PERL_REVISION == (a) \ |
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16 | && (PERL_VERSION > (b) \ |
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17 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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18 | |
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19 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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20 | # ifndef PL_ppaddr |
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21 | # define PL_ppaddr ppaddr |
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22 | # endif |
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23 | # ifndef call_sv |
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24 | # define call_sv perl_call_sv |
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25 | # endif |
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26 | # ifndef get_sv |
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27 | # define get_sv perl_get_sv |
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28 | # endif |
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29 | # ifndef get_cv |
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30 | # define get_cv perl_get_cv |
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31 | # endif |
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32 | # ifndef IS_PADGV |
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33 | # define IS_PADGV(v) 0 |
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34 | # endif |
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35 | # ifndef IS_PADCONST |
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36 | # define IS_PADCONST(v) 0 |
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37 | # endif |
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38 | #endif |
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39 | |
12 | |
40 | #include <stdio.h> |
13 | #include <stdio.h> |
41 | #include <errno.h> |
14 | #include <errno.h> |
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15 | #include <assert.h> |
42 | |
16 | |
43 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
17 | #ifdef WIN32 |
44 | # undef STACKGUARD |
18 | # undef setjmp |
45 | #endif |
19 | # undef longjmp |
46 | |
20 | # undef _exit |
47 | #ifndef STACKGUARD |
21 | # define setjmp _setjmp // deep magic, don't ask |
48 | # define STACKGUARD 0 |
22 | #else |
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23 | # include <inttypes.h> /* most portable stdint.h */ |
49 | #endif |
24 | #endif |
50 | |
25 | |
51 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
52 | # include <unistd.h> |
27 | # include <unistd.h> |
53 | # include <sys/mman.h> |
28 | # include <sys/mman.h> |
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… | |
69 | #else |
44 | #else |
70 | # define PAGESIZE 0 |
45 | # define PAGESIZE 0 |
71 | # define BOOT_PAGESIZE (void)0 |
46 | # define BOOT_PAGESIZE (void)0 |
72 | #endif |
47 | #endif |
73 | |
48 | |
74 | /* The next macro should declare a variable stacklevel that contains and approximation |
49 | #if CORO_USE_VALGRIND |
75 | * to the current C stack pointer. Its property is that it changes with each call |
50 | # include <valgrind/valgrind.h> |
76 | * and should be unique. */ |
51 | #endif |
77 | #define dSTACKLEVEL int stacklevel |
52 | |
78 | #define STACKLEVEL ((void *)&stacklevel) |
53 | /* the maximum number of idle cctx that will be pooled */ |
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54 | static int cctx_max_idle = 4; |
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55 | |
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56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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57 | (PERL_REVISION > (a) \ |
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58 | || (PERL_REVISION == (a) \ |
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59 | && (PERL_VERSION > (b) \ |
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60 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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61 | |
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62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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63 | # ifndef PL_ppaddr |
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64 | # define PL_ppaddr ppaddr |
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65 | # endif |
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66 | # ifndef call_sv |
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67 | # define call_sv perl_call_sv |
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68 | # endif |
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69 | # ifndef get_sv |
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70 | # define get_sv perl_get_sv |
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71 | # endif |
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72 | # ifndef get_cv |
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73 | # define get_cv perl_get_cv |
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74 | # endif |
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75 | # ifndef IS_PADGV |
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76 | # define IS_PADGV(v) 0 |
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77 | # endif |
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78 | # ifndef IS_PADCONST |
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79 | # define IS_PADCONST(v) 0 |
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80 | # endif |
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81 | #endif |
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82 | |
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83 | /* 5.11 */ |
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84 | #ifndef CxHASARGS |
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85 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
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86 | #endif |
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87 | |
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88 | /* 5.10.0 */ |
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89 | #ifndef SvREFCNT_inc_NN |
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90 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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91 | #endif |
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92 | |
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93 | /* 5.8.8 */ |
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94 | #ifndef GV_NOTQUAL |
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95 | # define GV_NOTQUAL 0 |
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96 | #endif |
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97 | #ifndef newSV |
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98 | # define newSV(l) NEWSV(0,l) |
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99 | #endif |
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100 | |
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101 | /* 5.8.7 */ |
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102 | #ifndef SvRV_set |
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103 | # define SvRV_set(s,v) SvRV(s) = (v) |
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104 | #endif |
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105 | |
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106 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
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107 | # undef CORO_STACKGUARD |
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108 | #endif |
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109 | |
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110 | #ifndef CORO_STACKGUARD |
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111 | # define CORO_STACKGUARD 0 |
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112 | #endif |
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113 | |
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114 | /* prefer perl internal functions over our own? */ |
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115 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
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116 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
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117 | #endif |
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118 | |
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119 | /* The next macros try to return the current stack pointer, in an as |
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120 | * portable way as possible. */ |
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121 | #if __GNUC__ >= 4 |
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122 | # define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
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123 | #else |
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124 | # define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
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125 | #endif |
79 | |
126 | |
80 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
81 | |
128 | |
82 | #if __GNUC__ >= 3 |
129 | #if __GNUC__ >= 3 |
83 | # define attribute(x) __attribute__(x) |
130 | # define attribute(x) __attribute__(x) |
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131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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132 | # define INLINE static inline |
84 | #else |
133 | #else |
85 | # define attribute(x) |
134 | # define attribute(x) |
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135 | # define expect(expr,value) (expr) |
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136 | # define INLINE static |
86 | #endif |
137 | #endif |
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138 | |
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139 | #define expect_false(expr) expect ((expr) != 0, 0) |
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140 | #define expect_true(expr) expect ((expr) != 0, 1) |
87 | |
141 | |
88 | #define NOINLINE attribute ((noinline)) |
142 | #define NOINLINE attribute ((noinline)) |
89 | |
143 | |
90 | #include "CoroAPI.h" |
144 | #include "CoroAPI.h" |
91 | |
145 | |
92 | #define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */ |
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93 | |
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94 | #ifdef USE_ITHREADS |
146 | #ifdef USE_ITHREADS |
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147 | |
95 | static perl_mutex coro_mutex; |
148 | static perl_mutex coro_lock; |
96 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
149 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
97 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
150 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
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151 | # if CORO_PTHREAD |
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152 | static void *coro_thx; |
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153 | # endif |
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154 | |
98 | #else |
155 | #else |
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156 | |
99 | # define LOCK (void)0 |
157 | # define LOCK (void)0 |
100 | # define UNLOCK (void)0 |
158 | # define UNLOCK (void)0 |
101 | #endif |
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102 | |
159 | |
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160 | #endif |
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161 | |
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162 | # undef LOCK |
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163 | # define LOCK (void)0 |
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164 | # undef UNLOCK |
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165 | # define UNLOCK (void)0 |
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166 | |
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167 | /* helper storage struct for Coro::AIO */ |
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168 | struct io_state |
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169 | { |
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170 | AV *res; |
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171 | int errorno; |
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172 | I32 laststype; /* U16 in 5.10.0 */ |
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173 | int laststatval; |
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174 | Stat_t statcache; |
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175 | }; |
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176 | |
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177 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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178 | |
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179 | static U32 cctx_gen; |
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180 | static size_t cctx_stacksize = CORO_STACKSIZE; |
103 | static struct CoroAPI coroapi; |
181 | static struct CoroAPI coroapi; |
104 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
182 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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183 | static JMPENV *main_top_env; |
105 | static HV *coro_state_stash, *coro_stash; |
184 | static HV *coro_state_stash, *coro_stash; |
106 | static SV *coro_mortal; /* will be freed after next transfer */ |
185 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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186 | static volatile struct coro *transfer_next; |
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187 | |
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188 | static GV *irsgv; /* $/ */ |
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189 | static GV *stdoutgv; /* *STDOUT */ |
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190 | static SV *rv_diehook; |
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191 | static SV *rv_warnhook; |
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192 | static HV *hv_sig; /* %SIG */ |
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193 | |
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194 | /* async_pool helper stuff */ |
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195 | static SV *sv_pool_rss; |
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196 | static SV *sv_pool_size; |
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197 | static AV *av_async_pool; |
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198 | |
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199 | /* Coro::AnyEvent */ |
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200 | static SV *sv_activity; |
107 | |
201 | |
108 | static struct coro_cctx *cctx_first; |
202 | static struct coro_cctx *cctx_first; |
109 | static int cctx_count, cctx_idle; |
203 | static int cctx_count, cctx_idle; |
110 | |
204 | |
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205 | enum { |
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206 | CC_MAPPED = 0x01, |
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207 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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208 | CC_TRACE = 0x04, |
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209 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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210 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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211 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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212 | }; |
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213 | |
111 | /* this is a structure representing a c-level coroutine */ |
214 | /* this is a structure representing a c-level coroutine */ |
112 | typedef struct coro_cctx { |
215 | typedef struct coro_cctx |
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216 | { |
113 | struct coro_cctx *next; |
217 | struct coro_cctx *next; |
114 | |
218 | |
115 | /* the stack */ |
219 | /* the stack */ |
116 | void *sptr; |
220 | void *sptr; |
117 | long ssize; /* positive == mmap, otherwise malloc */ |
221 | size_t ssize; |
118 | |
222 | |
119 | /* cpu state */ |
223 | /* cpu state */ |
120 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
224 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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225 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
121 | JMPENV *top_env; |
226 | JMPENV *top_env; |
122 | coro_context cctx; |
227 | coro_context cctx; |
123 | |
228 | |
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229 | U32 gen; |
124 | #if USE_VALGRIND |
230 | #if CORO_USE_VALGRIND |
125 | int valgrind_id; |
231 | int valgrind_id; |
126 | #endif |
232 | #endif |
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233 | unsigned char flags; |
127 | } coro_cctx; |
234 | } coro_cctx; |
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235 | |
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236 | enum { |
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237 | CF_RUNNING = 0x0001, /* coroutine is running */ |
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238 | CF_READY = 0x0002, /* coroutine is ready */ |
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239 | CF_NEW = 0x0004, /* has never been switched to */ |
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240 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
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241 | }; |
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242 | |
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243 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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244 | typedef struct |
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245 | { |
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246 | SV *defsv; |
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247 | AV *defav; |
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248 | SV *errsv; |
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249 | SV *irsgv; |
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250 | #define VAR(name,type) type name; |
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251 | # include "state.h" |
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252 | #undef VAR |
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253 | } perl_slots; |
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254 | |
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255 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
128 | |
256 | |
129 | /* this is a structure representing a perl-level coroutine */ |
257 | /* this is a structure representing a perl-level coroutine */ |
130 | struct coro { |
258 | struct coro { |
131 | /* the c coroutine allocated to this perl coroutine, if any */ |
259 | /* the C coroutine allocated to this perl coroutine, if any */ |
132 | coro_cctx *cctx; |
260 | coro_cctx *cctx; |
133 | |
261 | |
134 | /* data associated with this coroutine (initial args) */ |
262 | /* process data */ |
135 | AV *args; |
263 | struct CoroSLF slf_frame; /* saved slf frame */ |
136 | int refcnt; |
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137 | |
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138 | /* optionally saved, might be zero */ |
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139 | AV *defav; |
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140 | SV *defsv; |
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141 | SV *errsv; |
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142 | |
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143 | /* saved global state not related to stacks */ |
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144 | U8 dowarn; |
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145 | I32 in_eval; |
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146 | |
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147 | /* the stacks and related info (callchain etc..) */ |
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148 | PERL_SI *curstackinfo; |
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149 | AV *curstack; |
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150 | AV *mainstack; |
264 | AV *mainstack; |
151 | SV **stack_sp; |
265 | perl_slots *slot; /* basically the saved sp */ |
152 | OP *op; |
266 | |
153 | SV **curpad; |
267 | AV *args; /* data associated with this coroutine (initial args) */ |
154 | AV *comppad; |
268 | int refcnt; /* coroutines are refcounted, yes */ |
155 | CV *compcv; |
269 | int flags; /* CF_ flags */ |
156 | SV **stack_base; |
270 | HV *hv; /* the perl hash associated with this coro, if any */ |
157 | SV **stack_max; |
271 | |
158 | SV **tmps_stack; |
272 | /* statistics */ |
159 | I32 tmps_floor; |
273 | int usecount; /* number of transfers to this coro */ |
160 | I32 tmps_ix; |
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161 | I32 tmps_max; |
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162 | I32 *markstack; |
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163 | I32 *markstack_ptr; |
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164 | I32 *markstack_max; |
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165 | I32 *scopestack; |
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166 | I32 scopestack_ix; |
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167 | I32 scopestack_max; |
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168 | ANY *savestack; |
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169 | I32 savestack_ix; |
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170 | I32 savestack_max; |
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171 | OP **retstack; |
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172 | I32 retstack_ix; |
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173 | I32 retstack_max; |
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174 | PMOP *curpm; |
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175 | COP *curcop; |
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176 | |
274 | |
177 | /* coro process data */ |
275 | /* coro process data */ |
178 | int prio; |
276 | int prio; |
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277 | SV *throw; /* exception to be thrown */ |
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278 | |
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279 | /* async_pool */ |
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280 | SV *saved_deffh; |
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281 | |
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282 | /* linked list */ |
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283 | struct coro *next, *prev; |
179 | }; |
284 | }; |
180 | |
285 | |
181 | typedef struct coro *Coro__State; |
286 | typedef struct coro *Coro__State; |
182 | typedef struct coro *Coro__State_or_hashref; |
287 | typedef struct coro *Coro__State_or_hashref; |
183 | |
288 | |
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289 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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290 | |
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291 | /** Coro ********************************************************************/ |
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292 | |
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293 | #define PRIO_MAX 3 |
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294 | #define PRIO_HIGH 1 |
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295 | #define PRIO_NORMAL 0 |
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296 | #define PRIO_LOW -1 |
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297 | #define PRIO_IDLE -3 |
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298 | #define PRIO_MIN -4 |
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299 | |
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300 | /* for Coro.pm */ |
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301 | static SV *coro_current; |
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302 | static SV *coro_readyhook; |
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303 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
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304 | static struct coro *coro_first; |
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305 | #define coro_nready coroapi.nready |
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306 | |
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307 | /** lowlevel stuff **********************************************************/ |
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308 | |
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309 | static SV * |
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310 | coro_get_sv (pTHX_ const char *name, int create) |
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311 | { |
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312 | #if PERL_VERSION_ATLEAST (5,10,0) |
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313 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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314 | get_sv (name, create); |
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315 | #endif |
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316 | return get_sv (name, create); |
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317 | } |
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318 | |
184 | static AV * |
319 | static AV * |
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320 | coro_get_av (pTHX_ const char *name, int create) |
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321 | { |
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322 | #if PERL_VERSION_ATLEAST (5,10,0) |
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323 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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324 | get_av (name, create); |
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325 | #endif |
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326 | return get_av (name, create); |
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327 | } |
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328 | |
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329 | static HV * |
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330 | coro_get_hv (pTHX_ const char *name, int create) |
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331 | { |
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332 | #if PERL_VERSION_ATLEAST (5,10,0) |
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333 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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334 | get_hv (name, create); |
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335 | #endif |
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336 | return get_hv (name, create); |
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337 | } |
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338 | |
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339 | static AV * |
185 | coro_clone_padlist (CV *cv) |
340 | coro_clone_padlist (pTHX_ CV *cv) |
186 | { |
341 | { |
187 | AV *padlist = CvPADLIST (cv); |
342 | AV *padlist = CvPADLIST (cv); |
188 | AV *newpadlist, *newpad; |
343 | AV *newpadlist, *newpad; |
189 | |
344 | |
190 | newpadlist = newAV (); |
345 | newpadlist = newAV (); |
191 | AvREAL_off (newpadlist); |
346 | AvREAL_off (newpadlist); |
192 | #if PERL_VERSION_ATLEAST (5,9,0) |
347 | #if PERL_VERSION_ATLEAST (5,10,0) |
193 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
348 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
194 | #else |
349 | #else |
195 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
350 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
196 | #endif |
351 | #endif |
197 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
352 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
198 | --AvFILLp (padlist); |
353 | --AvFILLp (padlist); |
199 | |
354 | |
200 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
355 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
201 | av_store (newpadlist, 1, (SV *)newpad); |
356 | av_store (newpadlist, 1, (SV *)newpad); |
202 | |
357 | |
203 | return newpadlist; |
358 | return newpadlist; |
204 | } |
359 | } |
205 | |
360 | |
206 | static void |
361 | static void |
207 | free_padlist (AV *padlist) |
362 | free_padlist (pTHX_ AV *padlist) |
208 | { |
363 | { |
209 | /* may be during global destruction */ |
364 | /* may be during global destruction */ |
210 | if (SvREFCNT (padlist)) |
365 | if (SvREFCNT (padlist)) |
211 | { |
366 | { |
212 | I32 i = AvFILLp (padlist); |
367 | I32 i = AvFILLp (padlist); |
… | |
… | |
233 | AV *padlist; |
388 | AV *padlist; |
234 | AV *av = (AV *)mg->mg_obj; |
389 | AV *av = (AV *)mg->mg_obj; |
235 | |
390 | |
236 | /* casting is fun. */ |
391 | /* casting is fun. */ |
237 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
392 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
238 | free_padlist (padlist); |
393 | free_padlist (aTHX_ padlist); |
239 | |
394 | |
240 | SvREFCNT_dec (av); |
395 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
241 | |
396 | |
242 | return 0; |
397 | return 0; |
243 | } |
398 | } |
244 | |
399 | |
245 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
400 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
|
|
401 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
246 | |
402 | |
247 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
403 | static MGVTBL coro_cv_vtbl = { |
|
|
404 | 0, 0, 0, 0, |
|
|
405 | coro_cv_free |
|
|
406 | }; |
|
|
407 | |
|
|
408 | #define CORO_MAGIC(sv, type) \ |
|
|
409 | SvMAGIC (sv) \ |
|
|
410 | ? SvMAGIC (sv)->mg_type == type \ |
|
|
411 | ? SvMAGIC (sv) \ |
|
|
412 | : mg_find (sv, type) \ |
|
|
413 | : 0 |
|
|
414 | |
|
|
415 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
416 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
417 | |
|
|
418 | INLINE struct coro * |
|
|
419 | SvSTATE_ (pTHX_ SV *coro) |
|
|
420 | { |
|
|
421 | HV *stash; |
|
|
422 | MAGIC *mg; |
|
|
423 | |
|
|
424 | if (SvROK (coro)) |
|
|
425 | coro = SvRV (coro); |
|
|
426 | |
|
|
427 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
428 | croak ("Coro::State object required"); |
|
|
429 | |
|
|
430 | stash = SvSTASH (coro); |
|
|
431 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
432 | { |
|
|
433 | /* very slow, but rare, check */ |
|
|
434 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
435 | croak ("Coro::State object required"); |
|
|
436 | } |
|
|
437 | |
|
|
438 | mg = CORO_MAGIC_state (coro); |
|
|
439 | return (struct coro *)mg->mg_ptr; |
|
|
440 | } |
|
|
441 | |
|
|
442 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
248 | |
443 | |
249 | /* the next two functions merely cache the padlists */ |
444 | /* the next two functions merely cache the padlists */ |
250 | static void |
445 | static void |
251 | get_padlist (CV *cv) |
446 | get_padlist (pTHX_ CV *cv) |
252 | { |
447 | { |
253 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
448 | MAGIC *mg = CORO_MAGIC_cv (cv); |
|
|
449 | AV *av; |
254 | |
450 | |
255 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
451 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
256 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
452 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
257 | else |
453 | else |
258 | { |
454 | { |
259 | #if 0 |
455 | #if CORO_PREFER_PERL_FUNCTIONS |
260 | /* this is probably cleaner, but also slower? */ |
456 | /* this is probably cleaner? but also slower! */ |
|
|
457 | /* in practise, it seems to be less stable */ |
261 | CV *cp = Perl_cv_clone (cv); |
458 | CV *cp = Perl_cv_clone (cv); |
262 | CvPADLIST (cv) = CvPADLIST (cp); |
459 | CvPADLIST (cv) = CvPADLIST (cp); |
263 | CvPADLIST (cp) = 0; |
460 | CvPADLIST (cp) = 0; |
264 | SvREFCNT_dec (cp); |
461 | SvREFCNT_dec (cp); |
265 | #else |
462 | #else |
266 | CvPADLIST (cv) = coro_clone_padlist (cv); |
463 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
267 | #endif |
464 | #endif |
268 | } |
465 | } |
269 | } |
466 | } |
270 | |
467 | |
271 | static void |
468 | static void |
272 | put_padlist (CV *cv) |
469 | put_padlist (pTHX_ CV *cv) |
273 | { |
470 | { |
274 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
471 | MAGIC *mg = CORO_MAGIC_cv (cv); |
|
|
472 | AV *av; |
275 | |
473 | |
276 | if (!mg) |
474 | if (expect_false (!mg)) |
277 | { |
475 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
278 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
279 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
280 | mg->mg_virtual = &vtbl_coro; |
|
|
281 | mg->mg_obj = (SV *)newAV (); |
|
|
282 | } |
|
|
283 | |
476 | |
284 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
477 | av = (AV *)mg->mg_obj; |
285 | } |
|
|
286 | |
478 | |
287 | #define SB do { |
479 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
288 | #define SE } while (0) |
480 | av_extend (av, AvMAX (av) + 1); |
289 | |
481 | |
290 | #define LOAD(state) load_state((state)); |
482 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
291 | #define SAVE(state,flags) save_state((state),(flags)); |
483 | } |
292 | |
484 | |
293 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
485 | /** load & save, init *******************************************************/ |
294 | |
486 | |
295 | static void |
487 | static void |
296 | load_state(Coro__State c) |
488 | load_perl (pTHX_ Coro__State c) |
297 | { |
489 | { |
298 | PL_dowarn = c->dowarn; |
490 | perl_slots *slot = c->slot; |
299 | PL_in_eval = c->in_eval; |
491 | c->slot = 0; |
300 | |
492 | |
301 | PL_curstackinfo = c->curstackinfo; |
|
|
302 | PL_curstack = c->curstack; |
|
|
303 | PL_mainstack = c->mainstack; |
493 | PL_mainstack = c->mainstack; |
304 | PL_stack_sp = c->stack_sp; |
|
|
305 | PL_op = c->op; |
|
|
306 | PL_curpad = c->curpad; |
|
|
307 | PL_comppad = c->comppad; |
|
|
308 | PL_compcv = c->compcv; |
|
|
309 | PL_stack_base = c->stack_base; |
|
|
310 | PL_stack_max = c->stack_max; |
|
|
311 | PL_tmps_stack = c->tmps_stack; |
|
|
312 | PL_tmps_floor = c->tmps_floor; |
|
|
313 | PL_tmps_ix = c->tmps_ix; |
|
|
314 | PL_tmps_max = c->tmps_max; |
|
|
315 | PL_markstack = c->markstack; |
|
|
316 | PL_markstack_ptr = c->markstack_ptr; |
|
|
317 | PL_markstack_max = c->markstack_max; |
|
|
318 | PL_scopestack = c->scopestack; |
|
|
319 | PL_scopestack_ix = c->scopestack_ix; |
|
|
320 | PL_scopestack_max = c->scopestack_max; |
|
|
321 | PL_savestack = c->savestack; |
|
|
322 | PL_savestack_ix = c->savestack_ix; |
|
|
323 | PL_savestack_max = c->savestack_max; |
|
|
324 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
325 | PL_retstack = c->retstack; |
|
|
326 | PL_retstack_ix = c->retstack_ix; |
|
|
327 | PL_retstack_max = c->retstack_max; |
|
|
328 | #endif |
|
|
329 | PL_curpm = c->curpm; |
|
|
330 | PL_curcop = c->curcop; |
|
|
331 | |
494 | |
332 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
495 | GvSV (PL_defgv) = slot->defsv; |
333 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
496 | GvAV (PL_defgv) = slot->defav; |
334 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
497 | GvSV (PL_errgv) = slot->errsv; |
|
|
498 | GvSV (irsgv) = slot->irsgv; |
|
|
499 | |
|
|
500 | #define VAR(name,type) PL_ ## name = slot->name; |
|
|
501 | # include "state.h" |
|
|
502 | #undef VAR |
335 | |
503 | |
336 | { |
504 | { |
337 | dSP; |
505 | dSP; |
|
|
506 | |
338 | CV *cv; |
507 | CV *cv; |
339 | |
508 | |
340 | /* now do the ugly restore mess */ |
509 | /* now do the ugly restore mess */ |
341 | while ((cv = (CV *)POPs)) |
510 | while (expect_true (cv = (CV *)POPs)) |
342 | { |
511 | { |
343 | AV *padlist = (AV *)POPs; |
|
|
344 | |
|
|
345 | if (padlist) |
|
|
346 | { |
|
|
347 | put_padlist (cv); /* mark this padlist as available */ |
512 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
348 | CvPADLIST(cv) = padlist; |
513 | CvDEPTH (cv) = PTR2IV (POPs); |
349 | } |
514 | CvPADLIST (cv) = (AV *)POPs; |
350 | |
|
|
351 | ++CvDEPTH(cv); |
|
|
352 | } |
515 | } |
353 | |
516 | |
354 | PUTBACK; |
517 | PUTBACK; |
355 | } |
518 | } |
356 | } |
|
|
357 | |
519 | |
|
|
520 | slf_frame = c->slf_frame; |
|
|
521 | } |
|
|
522 | |
358 | static void |
523 | static void |
359 | save_state(Coro__State c, int flags) |
524 | save_perl (pTHX_ Coro__State c) |
360 | { |
525 | { |
|
|
526 | c->slf_frame = slf_frame; |
|
|
527 | |
361 | { |
528 | { |
362 | dSP; |
529 | dSP; |
363 | I32 cxix = cxstack_ix; |
530 | I32 cxix = cxstack_ix; |
364 | PERL_CONTEXT *ccstk = cxstack; |
531 | PERL_CONTEXT *ccstk = cxstack; |
365 | PERL_SI *top_si = PL_curstackinfo; |
532 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
367 | /* |
534 | /* |
368 | * the worst thing you can imagine happens first - we have to save |
535 | * the worst thing you can imagine happens first - we have to save |
369 | * (and reinitialize) all cv's in the whole callchain :( |
536 | * (and reinitialize) all cv's in the whole callchain :( |
370 | */ |
537 | */ |
371 | |
538 | |
372 | PUSHs (Nullsv); |
539 | XPUSHs (Nullsv); |
373 | /* this loop was inspired by pp_caller */ |
540 | /* this loop was inspired by pp_caller */ |
374 | for (;;) |
541 | for (;;) |
375 | { |
542 | { |
376 | while (cxix >= 0) |
543 | while (expect_true (cxix >= 0)) |
377 | { |
544 | { |
378 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
545 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
379 | |
546 | |
380 | if (CxTYPE(cx) == CXt_SUB) |
547 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
381 | { |
548 | { |
382 | CV *cv = cx->blk_sub.cv; |
549 | CV *cv = cx->blk_sub.cv; |
|
|
550 | |
383 | if (CvDEPTH(cv)) |
551 | if (expect_true (CvDEPTH (cv))) |
384 | { |
552 | { |
385 | EXTEND (SP, CvDEPTH(cv)*2); |
553 | EXTEND (SP, 3); |
386 | |
|
|
387 | while (--CvDEPTH(cv)) |
|
|
388 | { |
|
|
389 | /* this tells the restore code to increment CvDEPTH */ |
|
|
390 | PUSHs (Nullsv); |
|
|
391 | PUSHs ((SV *)cv); |
|
|
392 | } |
|
|
393 | |
|
|
394 | PUSHs ((SV *)CvPADLIST(cv)); |
554 | PUSHs ((SV *)CvPADLIST (cv)); |
|
|
555 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
395 | PUSHs ((SV *)cv); |
556 | PUSHs ((SV *)cv); |
396 | |
557 | |
|
|
558 | CvDEPTH (cv) = 0; |
397 | get_padlist (cv); |
559 | get_padlist (aTHX_ cv); |
398 | } |
560 | } |
399 | } |
561 | } |
400 | #ifdef CXt_FORMAT |
|
|
401 | else if (CxTYPE(cx) == CXt_FORMAT) |
|
|
402 | { |
|
|
403 | /* I never used formats, so how should I know how these are implemented? */ |
|
|
404 | /* my bold guess is as a simple, plain sub... */ |
|
|
405 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
|
|
406 | } |
|
|
407 | #endif |
|
|
408 | } |
562 | } |
409 | |
563 | |
410 | if (top_si->si_type == PERLSI_MAIN) |
564 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
411 | break; |
565 | break; |
412 | |
566 | |
413 | top_si = top_si->si_prev; |
567 | top_si = top_si->si_prev; |
414 | ccstk = top_si->si_cxstack; |
568 | ccstk = top_si->si_cxstack; |
415 | cxix = top_si->si_cxix; |
569 | cxix = top_si->si_cxix; |
416 | } |
570 | } |
417 | |
571 | |
418 | PUTBACK; |
572 | PUTBACK; |
419 | } |
573 | } |
420 | |
574 | |
421 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
575 | /* allocate some space on the context stack for our purposes */ |
422 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
576 | /* we manually unroll here, as usually 2 slots is enough */ |
423 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
577 | if (SLOT_COUNT >= 1) CXINC; |
|
|
578 | if (SLOT_COUNT >= 2) CXINC; |
|
|
579 | if (SLOT_COUNT >= 3) CXINC; |
|
|
580 | { |
|
|
581 | int i; |
|
|
582 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
583 | CXINC; |
|
|
584 | } |
|
|
585 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
424 | |
586 | |
425 | c->dowarn = PL_dowarn; |
|
|
426 | c->in_eval = PL_in_eval; |
|
|
427 | |
|
|
428 | c->curstackinfo = PL_curstackinfo; |
|
|
429 | c->curstack = PL_curstack; |
|
|
430 | c->mainstack = PL_mainstack; |
587 | c->mainstack = PL_mainstack; |
431 | c->stack_sp = PL_stack_sp; |
588 | |
432 | c->op = PL_op; |
589 | { |
433 | c->curpad = PL_curpad; |
590 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
434 | c->comppad = PL_comppad; |
591 | |
435 | c->compcv = PL_compcv; |
592 | slot->defav = GvAV (PL_defgv); |
436 | c->stack_base = PL_stack_base; |
593 | slot->defsv = DEFSV; |
437 | c->stack_max = PL_stack_max; |
594 | slot->errsv = ERRSV; |
438 | c->tmps_stack = PL_tmps_stack; |
595 | slot->irsgv = GvSV (irsgv); |
439 | c->tmps_floor = PL_tmps_floor; |
596 | |
440 | c->tmps_ix = PL_tmps_ix; |
597 | #define VAR(name,type) slot->name = PL_ ## name; |
441 | c->tmps_max = PL_tmps_max; |
598 | # include "state.h" |
442 | c->markstack = PL_markstack; |
599 | #undef VAR |
443 | c->markstack_ptr = PL_markstack_ptr; |
600 | } |
444 | c->markstack_max = PL_markstack_max; |
|
|
445 | c->scopestack = PL_scopestack; |
|
|
446 | c->scopestack_ix = PL_scopestack_ix; |
|
|
447 | c->scopestack_max = PL_scopestack_max; |
|
|
448 | c->savestack = PL_savestack; |
|
|
449 | c->savestack_ix = PL_savestack_ix; |
|
|
450 | c->savestack_max = PL_savestack_max; |
|
|
451 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
452 | c->retstack = PL_retstack; |
|
|
453 | c->retstack_ix = PL_retstack_ix; |
|
|
454 | c->retstack_max = PL_retstack_max; |
|
|
455 | #endif |
|
|
456 | c->curpm = PL_curpm; |
|
|
457 | c->curcop = PL_curcop; |
|
|
458 | } |
601 | } |
459 | |
602 | |
460 | /* |
603 | /* |
461 | * allocate various perl stacks. This is an exact copy |
604 | * allocate various perl stacks. This is almost an exact copy |
462 | * of perl.c:init_stacks, except that it uses less memory |
605 | * of perl.c:init_stacks, except that it uses less memory |
463 | * on the (sometimes correct) assumption that coroutines do |
606 | * on the (sometimes correct) assumption that coroutines do |
464 | * not usually need a lot of stackspace. |
607 | * not usually need a lot of stackspace. |
465 | */ |
608 | */ |
|
|
609 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
610 | # define coro_init_stacks init_stacks |
|
|
611 | #else |
466 | static void |
612 | static void |
467 | coro_init_stacks () |
613 | coro_init_stacks (pTHX) |
468 | { |
614 | { |
469 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
615 | PL_curstackinfo = new_stackinfo(32, 8); |
470 | PL_curstackinfo->si_type = PERLSI_MAIN; |
616 | PL_curstackinfo->si_type = PERLSI_MAIN; |
471 | PL_curstack = PL_curstackinfo->si_stack; |
617 | PL_curstack = PL_curstackinfo->si_stack; |
472 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
618 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
473 | |
619 | |
474 | PL_stack_base = AvARRAY(PL_curstack); |
620 | PL_stack_base = AvARRAY(PL_curstack); |
475 | PL_stack_sp = PL_stack_base; |
621 | PL_stack_sp = PL_stack_base; |
476 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
622 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
477 | |
623 | |
478 | New(50,PL_tmps_stack,96,SV*); |
624 | New(50,PL_tmps_stack,32,SV*); |
479 | PL_tmps_floor = -1; |
625 | PL_tmps_floor = -1; |
480 | PL_tmps_ix = -1; |
626 | PL_tmps_ix = -1; |
481 | PL_tmps_max = 96; |
627 | PL_tmps_max = 32; |
482 | |
628 | |
483 | New(54,PL_markstack,16,I32); |
629 | New(54,PL_markstack,16,I32); |
484 | PL_markstack_ptr = PL_markstack; |
630 | PL_markstack_ptr = PL_markstack; |
485 | PL_markstack_max = PL_markstack + 16; |
631 | PL_markstack_max = PL_markstack + 16; |
486 | |
632 | |
487 | #ifdef SET_MARK_OFFSET |
633 | #ifdef SET_MARK_OFFSET |
488 | SET_MARK_OFFSET; |
634 | SET_MARK_OFFSET; |
489 | #endif |
635 | #endif |
490 | |
636 | |
491 | New(54,PL_scopestack,16,I32); |
637 | New(54,PL_scopestack,8,I32); |
492 | PL_scopestack_ix = 0; |
638 | PL_scopestack_ix = 0; |
493 | PL_scopestack_max = 16; |
639 | PL_scopestack_max = 8; |
494 | |
640 | |
495 | New(54,PL_savestack,96,ANY); |
641 | New(54,PL_savestack,24,ANY); |
496 | PL_savestack_ix = 0; |
642 | PL_savestack_ix = 0; |
497 | PL_savestack_max = 96; |
643 | PL_savestack_max = 24; |
498 | |
644 | |
499 | #if !PERL_VERSION_ATLEAST (5,9,0) |
645 | #if !PERL_VERSION_ATLEAST (5,10,0) |
500 | New(54,PL_retstack,8,OP*); |
646 | New(54,PL_retstack,4,OP*); |
501 | PL_retstack_ix = 0; |
647 | PL_retstack_ix = 0; |
502 | PL_retstack_max = 8; |
648 | PL_retstack_max = 4; |
503 | #endif |
649 | #endif |
504 | } |
650 | } |
|
|
651 | #endif |
505 | |
652 | |
506 | /* |
653 | /* |
507 | * destroy the stacks, the callchain etc... |
654 | * destroy the stacks, the callchain etc... |
508 | */ |
655 | */ |
509 | static void |
656 | static void |
510 | coro_destroy_stacks () |
657 | coro_destruct_stacks (pTHX) |
511 | { |
658 | { |
512 | if (!IN_DESTRUCT) |
|
|
513 | { |
|
|
514 | /* is this ugly, I ask? */ |
|
|
515 | LEAVE_SCOPE (0); |
|
|
516 | |
|
|
517 | /* sure it is, but more important: is it correct?? :/ */ |
|
|
518 | FREETMPS; |
|
|
519 | |
|
|
520 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
|
|
521 | } |
|
|
522 | |
|
|
523 | while (PL_curstackinfo->si_next) |
659 | while (PL_curstackinfo->si_next) |
524 | PL_curstackinfo = PL_curstackinfo->si_next; |
660 | PL_curstackinfo = PL_curstackinfo->si_next; |
525 | |
661 | |
526 | while (PL_curstackinfo) |
662 | while (PL_curstackinfo) |
527 | { |
663 | { |
528 | PERL_SI *p = PL_curstackinfo->si_prev; |
664 | PERL_SI *p = PL_curstackinfo->si_prev; |
529 | |
665 | |
530 | { /*D*//*remove*/ |
|
|
531 | dSP; |
|
|
532 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
|
|
533 | PUTBACK; /* possibly superfluous */ |
|
|
534 | } |
|
|
535 | |
|
|
536 | if (!IN_DESTRUCT) |
666 | if (!IN_DESTRUCT) |
537 | { |
|
|
538 | dounwind (-1);/*D*//*remove*/ |
|
|
539 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
667 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
540 | } |
|
|
541 | |
668 | |
542 | Safefree (PL_curstackinfo->si_cxstack); |
669 | Safefree (PL_curstackinfo->si_cxstack); |
543 | Safefree (PL_curstackinfo); |
670 | Safefree (PL_curstackinfo); |
544 | PL_curstackinfo = p; |
671 | PL_curstackinfo = p; |
545 | } |
672 | } |
546 | |
673 | |
547 | Safefree (PL_tmps_stack); |
674 | Safefree (PL_tmps_stack); |
548 | Safefree (PL_markstack); |
675 | Safefree (PL_markstack); |
549 | Safefree (PL_scopestack); |
676 | Safefree (PL_scopestack); |
550 | Safefree (PL_savestack); |
677 | Safefree (PL_savestack); |
551 | #if !PERL_VERSION_ATLEAST (5,9,0) |
678 | #if !PERL_VERSION_ATLEAST (5,10,0) |
552 | Safefree (PL_retstack); |
679 | Safefree (PL_retstack); |
553 | #endif |
680 | #endif |
554 | } |
681 | } |
555 | |
682 | |
|
|
683 | static size_t |
|
|
684 | coro_rss (pTHX_ struct coro *coro) |
|
|
685 | { |
|
|
686 | size_t rss = sizeof (*coro); |
|
|
687 | |
|
|
688 | if (coro->mainstack) |
|
|
689 | { |
|
|
690 | perl_slots tmp_slot; |
|
|
691 | perl_slots *slot; |
|
|
692 | |
|
|
693 | if (coro->flags & CF_RUNNING) |
|
|
694 | { |
|
|
695 | slot = &tmp_slot; |
|
|
696 | |
|
|
697 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
698 | # include "state.h" |
|
|
699 | #undef VAR |
|
|
700 | } |
|
|
701 | else |
|
|
702 | slot = coro->slot; |
|
|
703 | |
|
|
704 | if (slot) |
|
|
705 | { |
|
|
706 | rss += sizeof (slot->curstackinfo); |
|
|
707 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
708 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
|
|
709 | rss += slot->tmps_max * sizeof (SV *); |
|
|
710 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
711 | rss += slot->scopestack_max * sizeof (I32); |
|
|
712 | rss += slot->savestack_max * sizeof (ANY); |
|
|
713 | |
|
|
714 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
715 | rss += slot->retstack_max * sizeof (OP *); |
|
|
716 | #endif |
|
|
717 | } |
|
|
718 | } |
|
|
719 | |
|
|
720 | return rss; |
|
|
721 | } |
|
|
722 | |
|
|
723 | /** coroutine stack handling ************************************************/ |
|
|
724 | |
|
|
725 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
726 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
727 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
728 | |
|
|
729 | /* apparently < 5.8.8 */ |
|
|
730 | #ifndef MgPV_nolen_const |
|
|
731 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
732 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
733 | (const char*)(mg)->mg_ptr) |
|
|
734 | #endif |
|
|
735 | |
|
|
736 | /* |
|
|
737 | * This overrides the default magic get method of %SIG elements. |
|
|
738 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
739 | * and instead of tryign to save and restore the hash elements, we just provide |
|
|
740 | * readback here. |
|
|
741 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
742 | * not expecting this to actually change the hook. This is a potential problem |
|
|
743 | * when a schedule happens then, but we ignore this. |
|
|
744 | */ |
556 | static void |
745 | static int |
557 | setup_coro (struct coro *coro) |
746 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
747 | { |
|
|
748 | const char *s = MgPV_nolen_const (mg); |
|
|
749 | |
|
|
750 | if (*s == '_') |
|
|
751 | { |
|
|
752 | SV **svp = 0; |
|
|
753 | |
|
|
754 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
755 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
756 | |
|
|
757 | if (svp) |
|
|
758 | { |
|
|
759 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
760 | return 0; |
|
|
761 | } |
|
|
762 | } |
|
|
763 | |
|
|
764 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
765 | } |
|
|
766 | |
|
|
767 | static int |
|
|
768 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
769 | { |
|
|
770 | const char *s = MgPV_nolen_const (mg); |
|
|
771 | |
|
|
772 | if (*s == '_') |
|
|
773 | { |
|
|
774 | SV **svp = 0; |
|
|
775 | |
|
|
776 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
777 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
778 | |
|
|
779 | if (svp) |
|
|
780 | { |
|
|
781 | SV *old = *svp; |
|
|
782 | *svp = 0; |
|
|
783 | SvREFCNT_dec (old); |
|
|
784 | return 0; |
|
|
785 | } |
|
|
786 | } |
|
|
787 | |
|
|
788 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
789 | } |
|
|
790 | |
|
|
791 | static int |
|
|
792 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
793 | { |
|
|
794 | const char *s = MgPV_nolen_const (mg); |
|
|
795 | |
|
|
796 | if (*s == '_') |
|
|
797 | { |
|
|
798 | SV **svp = 0; |
|
|
799 | |
|
|
800 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
801 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
802 | |
|
|
803 | if (svp) |
|
|
804 | { |
|
|
805 | SV *old = *svp; |
|
|
806 | *svp = newSVsv (sv); |
|
|
807 | SvREFCNT_dec (old); |
|
|
808 | return 0; |
|
|
809 | } |
|
|
810 | } |
|
|
811 | |
|
|
812 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
813 | } |
|
|
814 | |
|
|
815 | static void |
|
|
816 | prepare_nop (aTHX_ struct coro_transfer_args *ta) |
|
|
817 | { |
|
|
818 | /* kind of mega-hacky, but works */ |
|
|
819 | ta->next = ta->prev = (struct coro *)ta; |
|
|
820 | } |
|
|
821 | |
|
|
822 | static int |
|
|
823 | slf_check_nop (aTHX) |
|
|
824 | { |
|
|
825 | return 0; |
|
|
826 | } |
|
|
827 | |
|
|
828 | static void |
|
|
829 | coro_setup (pTHX_ struct coro *coro) |
558 | { |
830 | { |
559 | /* |
831 | /* |
560 | * emulate part of the perl startup here. |
832 | * emulate part of the perl startup here. |
561 | */ |
833 | */ |
562 | |
|
|
563 | coro_init_stacks (); |
834 | coro_init_stacks (aTHX); |
564 | |
835 | |
|
|
836 | PL_runops = RUNOPS_DEFAULT; |
|
|
837 | PL_curcop = &PL_compiling; |
|
|
838 | PL_in_eval = EVAL_NULL; |
565 | PL_curcop = 0; |
839 | PL_comppad = 0; |
566 | PL_in_eval = 0; |
|
|
567 | PL_curpm = 0; |
840 | PL_curpm = 0; |
|
|
841 | PL_curpad = 0; |
|
|
842 | PL_localizing = 0; |
|
|
843 | PL_dirty = 0; |
|
|
844 | PL_restartop = 0; |
|
|
845 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
846 | PL_parser = 0; |
|
|
847 | #endif |
|
|
848 | |
|
|
849 | /* recreate the die/warn hooks */ |
|
|
850 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
851 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
|
|
852 | |
|
|
853 | GvSV (PL_defgv) = newSV (0); |
|
|
854 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
855 | GvSV (PL_errgv) = newSV (0); |
|
|
856 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
857 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
858 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
568 | |
859 | |
569 | { |
860 | { |
570 | dSP; |
861 | dSP; |
571 | LOGOP myop; |
862 | UNOP myop; |
572 | |
863 | |
573 | /* I have no idea why this is needed, but it is */ |
|
|
574 | PUSHMARK (SP); |
|
|
575 | |
|
|
576 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
577 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
578 | |
|
|
579 | Zero (&myop, 1, LOGOP); |
864 | Zero (&myop, 1, UNOP); |
580 | myop.op_next = Nullop; |
865 | myop.op_next = Nullop; |
581 | myop.op_flags = OPf_WANT_VOID; |
866 | myop.op_flags = OPf_WANT_VOID; |
582 | |
867 | |
|
|
868 | PUSHMARK (SP); |
|
|
869 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
|
|
870 | PUTBACK; |
583 | PL_op = (OP *)&myop; |
871 | PL_op = (OP *)&myop; |
584 | |
|
|
585 | PUSHMARK (SP); |
|
|
586 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
|
|
587 | PUTBACK; |
|
|
588 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
872 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
589 | SPAGAIN; |
873 | SPAGAIN; |
590 | |
|
|
591 | ENTER; /* necessary e.g. for dounwind */ |
|
|
592 | } |
874 | } |
593 | } |
|
|
594 | |
875 | |
|
|
876 | /* this newly created coroutine might be run on an existing cctx which most |
|
|
877 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
878 | */ |
|
|
879 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
880 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
881 | } |
|
|
882 | |
595 | static void |
883 | static void |
|
|
884 | coro_destruct (pTHX_ struct coro *coro) |
|
|
885 | { |
|
|
886 | if (!IN_DESTRUCT) |
|
|
887 | { |
|
|
888 | /* restore all saved variables and stuff */ |
|
|
889 | LEAVE_SCOPE (0); |
|
|
890 | assert (PL_tmps_floor == -1); |
|
|
891 | |
|
|
892 | /* free all temporaries */ |
|
|
893 | FREETMPS; |
|
|
894 | assert (PL_tmps_ix == -1); |
|
|
895 | |
|
|
896 | /* unwind all extra stacks */ |
|
|
897 | POPSTACK_TO (PL_mainstack); |
|
|
898 | |
|
|
899 | /* unwind main stack */ |
|
|
900 | dounwind (-1); |
|
|
901 | } |
|
|
902 | |
|
|
903 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
904 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
905 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
906 | SvREFCNT_dec (PL_defoutgv); |
|
|
907 | SvREFCNT_dec (PL_rs); |
|
|
908 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
909 | |
|
|
910 | SvREFCNT_dec (PL_diehook); |
|
|
911 | SvREFCNT_dec (PL_warnhook); |
|
|
912 | |
|
|
913 | SvREFCNT_dec (coro->saved_deffh); |
|
|
914 | SvREFCNT_dec (coro->throw); |
|
|
915 | |
|
|
916 | coro_destruct_stacks (aTHX); |
|
|
917 | } |
|
|
918 | |
|
|
919 | INLINE void |
596 | free_coro_mortal () |
920 | free_coro_mortal (pTHX) |
597 | { |
921 | { |
598 | if (coro_mortal) |
922 | if (expect_true (coro_mortal)) |
599 | { |
923 | { |
600 | SvREFCNT_dec (coro_mortal); |
924 | SvREFCNT_dec (coro_mortal); |
601 | coro_mortal = 0; |
925 | coro_mortal = 0; |
602 | } |
926 | } |
603 | } |
927 | } |
604 | |
928 | |
|
|
929 | static int |
|
|
930 | runops_trace (pTHX) |
|
|
931 | { |
|
|
932 | COP *oldcop = 0; |
|
|
933 | int oldcxix = -2; |
|
|
934 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
935 | coro_cctx *cctx = coro->cctx; |
|
|
936 | |
|
|
937 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
938 | { |
|
|
939 | PERL_ASYNC_CHECK (); |
|
|
940 | |
|
|
941 | if (cctx->flags & CC_TRACE_ALL) |
|
|
942 | { |
|
|
943 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
944 | { |
|
|
945 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
946 | SV **bot, **top; |
|
|
947 | AV *av = newAV (); /* return values */ |
|
|
948 | SV **cb; |
|
|
949 | dSP; |
|
|
950 | |
|
|
951 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
952 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
953 | if (isGV (gv)) |
|
|
954 | gv_efullname3 (fullname, gv, 0); |
|
|
955 | |
|
|
956 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
957 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
958 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
959 | : bot; |
|
|
960 | |
|
|
961 | av_extend (av, top - bot); |
|
|
962 | while (bot < top) |
|
|
963 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
|
|
964 | |
|
|
965 | PL_runops = RUNOPS_DEFAULT; |
|
|
966 | ENTER; |
|
|
967 | SAVETMPS; |
|
|
968 | EXTEND (SP, 3); |
|
|
969 | PUSHMARK (SP); |
|
|
970 | PUSHs (&PL_sv_no); |
|
|
971 | PUSHs (fullname); |
|
|
972 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
973 | PUTBACK; |
|
|
974 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
975 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
976 | SPAGAIN; |
|
|
977 | FREETMPS; |
|
|
978 | LEAVE; |
|
|
979 | PL_runops = runops_trace; |
|
|
980 | } |
|
|
981 | |
|
|
982 | if (oldcop != PL_curcop) |
|
|
983 | { |
|
|
984 | oldcop = PL_curcop; |
|
|
985 | |
|
|
986 | if (PL_curcop != &PL_compiling) |
|
|
987 | { |
|
|
988 | SV **cb; |
|
|
989 | |
|
|
990 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
991 | { |
|
|
992 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
993 | |
|
|
994 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
995 | { |
|
|
996 | runops_proc_t old_runops = PL_runops; |
|
|
997 | dSP; |
|
|
998 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
999 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
1000 | |
|
|
1001 | if (isGV (gv)) |
|
|
1002 | gv_efullname3 (fullname, gv, 0); |
|
|
1003 | |
|
|
1004 | PL_runops = RUNOPS_DEFAULT; |
|
|
1005 | ENTER; |
|
|
1006 | SAVETMPS; |
|
|
1007 | EXTEND (SP, 3); |
|
|
1008 | PUSHMARK (SP); |
|
|
1009 | PUSHs (&PL_sv_yes); |
|
|
1010 | PUSHs (fullname); |
|
|
1011 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
1012 | PUTBACK; |
|
|
1013 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
1014 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1015 | SPAGAIN; |
|
|
1016 | FREETMPS; |
|
|
1017 | LEAVE; |
|
|
1018 | PL_runops = runops_trace; |
|
|
1019 | } |
|
|
1020 | |
|
|
1021 | oldcxix = cxstack_ix; |
|
|
1022 | } |
|
|
1023 | |
|
|
1024 | if (cctx->flags & CC_TRACE_LINE) |
|
|
1025 | { |
|
|
1026 | dSP; |
|
|
1027 | |
|
|
1028 | PL_runops = RUNOPS_DEFAULT; |
|
|
1029 | ENTER; |
|
|
1030 | SAVETMPS; |
|
|
1031 | EXTEND (SP, 3); |
|
|
1032 | PL_runops = RUNOPS_DEFAULT; |
|
|
1033 | PUSHMARK (SP); |
|
|
1034 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
1035 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
1036 | PUTBACK; |
|
|
1037 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
1038 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1039 | SPAGAIN; |
|
|
1040 | FREETMPS; |
|
|
1041 | LEAVE; |
|
|
1042 | PL_runops = runops_trace; |
|
|
1043 | } |
|
|
1044 | } |
|
|
1045 | } |
|
|
1046 | } |
|
|
1047 | } |
|
|
1048 | |
|
|
1049 | TAINT_NOT; |
|
|
1050 | return 0; |
|
|
1051 | } |
|
|
1052 | |
|
|
1053 | static void |
|
|
1054 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
|
|
1055 | { |
|
|
1056 | ta->prev = (struct coro *)cctx; |
|
|
1057 | ta->next = 0; |
|
|
1058 | } |
|
|
1059 | |
|
|
1060 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
1061 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
1062 | /* during execution of a perl program */ |
|
|
1063 | /* also initialises PL_top_env */ |
605 | static void NOINLINE |
1064 | static void NOINLINE |
606 | prepare_cctx (coro_cctx *cctx) |
1065 | cctx_prepare (pTHX_ coro_cctx *cctx) |
607 | { |
1066 | { |
608 | dSP; |
1067 | dSP; |
609 | LOGOP myop; |
1068 | UNOP myop; |
610 | |
1069 | |
|
|
1070 | PL_top_env = &PL_start_env; |
|
|
1071 | |
|
|
1072 | if (cctx->flags & CC_TRACE) |
|
|
1073 | PL_runops = runops_trace; |
|
|
1074 | |
611 | Zero (&myop, 1, LOGOP); |
1075 | Zero (&myop, 1, UNOP); |
612 | myop.op_next = PL_op; |
1076 | myop.op_next = PL_op; |
613 | myop.op_flags = OPf_WANT_VOID; |
1077 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
614 | |
|
|
615 | sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx)); |
|
|
616 | |
1078 | |
617 | PUSHMARK (SP); |
1079 | PUSHMARK (SP); |
|
|
1080 | EXTEND (SP, 2); |
|
|
1081 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
618 | XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1082 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
619 | PUTBACK; |
1083 | PUTBACK; |
|
|
1084 | PL_op = (OP *)&myop; |
620 | PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX); |
1085 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
621 | SPAGAIN; |
1086 | SPAGAIN; |
622 | } |
1087 | } |
623 | |
1088 | |
624 | static void |
1089 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
625 | coro_run (void *arg) |
1090 | INLINE void |
|
|
1091 | transfer_tail (pTHX) |
626 | { |
1092 | { |
627 | /* coro_run is the alternative epilogue of transfer() */ |
1093 | struct coro *next = (struct coro *)transfer_next; |
|
|
1094 | assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */ |
|
|
1095 | assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next)); |
|
|
1096 | |
|
|
1097 | free_coro_mortal (aTHX); |
628 | UNLOCK; |
1098 | UNLOCK; |
629 | |
1099 | |
630 | /* |
1100 | if (expect_false (next->throw)) |
|
|
1101 | { |
|
|
1102 | SV *exception = sv_2mortal (next->throw); |
|
|
1103 | |
|
|
1104 | next->throw = 0; |
|
|
1105 | sv_setsv (ERRSV, exception); |
|
|
1106 | croak (0); |
|
|
1107 | } |
|
|
1108 | } |
|
|
1109 | |
|
|
1110 | /* |
631 | * this is a _very_ stripped down perl interpreter ;) |
1111 | * this is a _very_ stripped down perl interpreter ;) |
632 | */ |
1112 | */ |
633 | PL_top_env = &PL_start_env; |
1113 | static void |
|
|
1114 | cctx_run (void *arg) |
|
|
1115 | { |
|
|
1116 | #ifdef USE_ITHREADS |
|
|
1117 | # if CORO_PTHREAD |
|
|
1118 | PERL_SET_CONTEXT (coro_thx); |
|
|
1119 | # endif |
|
|
1120 | #endif |
|
|
1121 | { |
|
|
1122 | dTHX; |
634 | |
1123 | |
|
|
1124 | /* normally we would need to skip the entersub here */ |
|
|
1125 | /* not doing so will re-execute it, which is exactly what we want */ |
|
|
1126 | /* PL_nop = PL_nop->op_next */ |
|
|
1127 | |
635 | /* inject call to cctx_init */ |
1128 | /* inject a fake subroutine call to cctx_init */ |
636 | prepare_cctx ((coro_cctx *)arg); |
1129 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
637 | |
1130 | |
|
|
1131 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1132 | /* TODO: throwing an exception here might be deadly, VERIFY */ |
|
|
1133 | transfer_tail (aTHX); |
|
|
1134 | |
638 | /* somebody will hit me for both perl_run and PL_restartop */ |
1135 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
|
|
1136 | PL_restartop = PL_op; |
639 | perl_run (PL_curinterp); |
1137 | perl_run (PL_curinterp); |
640 | |
1138 | |
641 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
1139 | /* |
642 | abort (); |
1140 | * If perl-run returns we assume exit() was being called or the coro |
|
|
1141 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
1142 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
1143 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
1144 | * coroutine as Coro has no such concept |
|
|
1145 | */ |
|
|
1146 | PL_top_env = main_top_env; |
|
|
1147 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1148 | } |
643 | } |
1149 | } |
644 | |
1150 | |
645 | static coro_cctx * |
1151 | static coro_cctx * |
646 | cctx_new () |
1152 | cctx_new () |
647 | { |
1153 | { |
648 | coro_cctx *cctx; |
1154 | coro_cctx *cctx; |
649 | |
1155 | |
650 | ++cctx_count; |
1156 | ++cctx_count; |
651 | |
|
|
652 | New (0, cctx, 1, coro_cctx); |
1157 | New (0, cctx, 1, coro_cctx); |
653 | |
1158 | |
|
|
1159 | cctx->gen = cctx_gen; |
|
|
1160 | cctx->flags = 0; |
|
|
1161 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1162 | |
|
|
1163 | return cctx; |
|
|
1164 | } |
|
|
1165 | |
|
|
1166 | /* create a new cctx only suitable as source */ |
|
|
1167 | static coro_cctx * |
|
|
1168 | cctx_new_empty () |
|
|
1169 | { |
|
|
1170 | coro_cctx *cctx = cctx_new (); |
|
|
1171 | |
|
|
1172 | cctx->sptr = 0; |
|
|
1173 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1174 | |
|
|
1175 | return cctx; |
|
|
1176 | } |
|
|
1177 | |
|
|
1178 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1179 | static coro_cctx * |
|
|
1180 | cctx_new_run () |
|
|
1181 | { |
|
|
1182 | coro_cctx *cctx = cctx_new (); |
|
|
1183 | void *stack_start; |
|
|
1184 | size_t stack_size; |
|
|
1185 | |
654 | #if HAVE_MMAP |
1186 | #if HAVE_MMAP |
655 | |
|
|
656 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
1187 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
657 | /* mmap suppsedly does allocate-on-write for us */ |
1188 | /* mmap supposedly does allocate-on-write for us */ |
658 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1189 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
659 | |
1190 | |
660 | if (cctx->sptr == (void *)-1) |
1191 | if (cctx->sptr != (void *)-1) |
|
|
1192 | { |
|
|
1193 | #if CORO_STACKGUARD |
|
|
1194 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
1195 | #endif |
|
|
1196 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
|
|
1197 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
1198 | cctx->flags |= CC_MAPPED; |
661 | { |
1199 | } |
|
|
1200 | else |
|
|
1201 | #endif |
|
|
1202 | { |
|
|
1203 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
|
|
1204 | New (0, cctx->sptr, cctx_stacksize, long); |
|
|
1205 | |
|
|
1206 | if (!cctx->sptr) |
|
|
1207 | { |
662 | perror ("FATAL: unable to mmap stack for coroutine"); |
1208 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
663 | _exit (EXIT_FAILURE); |
1209 | _exit (EXIT_FAILURE); |
664 | } |
1210 | } |
665 | |
1211 | |
666 | # if STACKGUARD |
1212 | stack_start = cctx->sptr; |
667 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
1213 | stack_size = cctx->ssize; |
668 | # endif |
|
|
669 | |
|
|
670 | #else |
|
|
671 | |
|
|
672 | cctx->ssize = STACKSIZE * (long)sizeof (long); |
|
|
673 | New (0, cctx->sptr, STACKSIZE, long); |
|
|
674 | |
|
|
675 | if (!cctx->sptr) |
|
|
676 | { |
1214 | } |
677 | perror ("FATAL: unable to malloc stack for coroutine"); |
|
|
678 | _exit (EXIT_FAILURE); |
|
|
679 | } |
|
|
680 | |
1215 | |
|
|
1216 | #if CORO_USE_VALGRIND |
|
|
1217 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
681 | #endif |
1218 | #endif |
682 | |
1219 | |
683 | #if USE_VALGRIND |
1220 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
684 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ( |
|
|
685 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
|
|
686 | cctx->ssize + (char *)cctx->sptr |
|
|
687 | ); |
|
|
688 | #endif |
|
|
689 | |
|
|
690 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
|
|
691 | |
1221 | |
692 | return cctx; |
1222 | return cctx; |
693 | } |
1223 | } |
694 | |
1224 | |
695 | static void |
1225 | static void |
696 | cctx_free (coro_cctx *cctx) |
1226 | cctx_destroy (coro_cctx *cctx) |
697 | { |
1227 | { |
698 | if (!cctx) |
1228 | if (!cctx) |
699 | return; |
1229 | return; |
700 | |
1230 | |
701 | --cctx_count; |
1231 | --cctx_count; |
|
|
1232 | coro_destroy (&cctx->cctx); |
702 | |
1233 | |
703 | #if USE_VALGRIND |
1234 | /* coro_transfer creates new, empty cctx's */ |
|
|
1235 | if (cctx->sptr) |
|
|
1236 | { |
|
|
1237 | #if CORO_USE_VALGRIND |
704 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1238 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
705 | #endif |
1239 | #endif |
706 | |
1240 | |
707 | #if HAVE_MMAP |
1241 | #if HAVE_MMAP |
|
|
1242 | if (cctx->flags & CC_MAPPED) |
708 | munmap (cctx->sptr, cctx->ssize); |
1243 | munmap (cctx->sptr, cctx->ssize); |
709 | #else |
1244 | else |
|
|
1245 | #endif |
710 | Safefree (cctx->sptr); |
1246 | Safefree (cctx->sptr); |
711 | #endif |
1247 | } |
712 | |
1248 | |
713 | Safefree (cctx); |
1249 | Safefree (cctx); |
714 | } |
1250 | } |
715 | |
1251 | |
|
|
1252 | /* wether this cctx should be destructed */ |
|
|
1253 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
|
|
1254 | |
716 | static coro_cctx * |
1255 | static coro_cctx * |
717 | cctx_get () |
1256 | cctx_get (pTHX) |
718 | { |
1257 | { |
719 | coro_cctx *cctx; |
1258 | while (expect_true (cctx_first)) |
720 | |
|
|
721 | if (cctx_first) |
|
|
722 | { |
1259 | { |
|
|
1260 | coro_cctx *cctx = cctx_first; |
|
|
1261 | cctx_first = cctx->next; |
723 | --cctx_idle; |
1262 | --cctx_idle; |
724 | cctx = cctx_first; |
1263 | |
725 | cctx_first = cctx->next; |
1264 | if (expect_true (!CCTX_EXPIRED (cctx))) |
726 | } |
1265 | return cctx; |
727 | else |
1266 | |
728 | { |
1267 | cctx_destroy (cctx); |
729 | cctx = cctx_new (); |
|
|
730 | PL_op = PL_op->op_next; |
|
|
731 | } |
1268 | } |
732 | |
1269 | |
733 | return cctx; |
1270 | return cctx_new_run (); |
734 | } |
1271 | } |
735 | |
1272 | |
736 | static void |
1273 | static void |
737 | cctx_put (coro_cctx *cctx) |
1274 | cctx_put (coro_cctx *cctx) |
738 | { |
1275 | { |
|
|
1276 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1277 | |
|
|
1278 | /* free another cctx if overlimit */ |
|
|
1279 | if (expect_false (cctx_idle >= cctx_max_idle)) |
|
|
1280 | { |
|
|
1281 | coro_cctx *first = cctx_first; |
|
|
1282 | cctx_first = first->next; |
|
|
1283 | --cctx_idle; |
|
|
1284 | |
|
|
1285 | cctx_destroy (first); |
|
|
1286 | } |
|
|
1287 | |
739 | ++cctx_idle; |
1288 | ++cctx_idle; |
740 | cctx->next = cctx_first; |
1289 | cctx->next = cctx_first; |
741 | cctx_first = cctx; |
1290 | cctx_first = cctx; |
742 | } |
1291 | } |
743 | |
1292 | |
744 | /* never call directly, always through the coro_state_transfer global variable */ |
1293 | /** coroutine switching *****************************************************/ |
|
|
1294 | |
|
|
1295 | static void |
|
|
1296 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1297 | { |
|
|
1298 | if (expect_true (prev != next)) |
|
|
1299 | { |
|
|
1300 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1301 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
|
|
1302 | |
|
|
1303 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1304 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
|
|
1305 | |
|
|
1306 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1307 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
|
|
1308 | |
|
|
1309 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
1310 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
|
|
1311 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1312 | #endif |
|
|
1313 | } |
|
|
1314 | } |
|
|
1315 | |
|
|
1316 | /* always use the TRANSFER macro */ |
745 | static void NOINLINE |
1317 | static void NOINLINE |
746 | transfer (struct coro *prev, struct coro *next, int flags) |
1318 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
747 | { |
1319 | { |
748 | dSTACKLEVEL; |
1320 | dSTACKLEVEL; |
749 | |
1321 | |
750 | /* sometimes transfer is only called to set idle_sp */ |
1322 | /* sometimes transfer is only called to set idle_sp */ |
751 | if (flags == TRANSFER_SET_STACKLEVEL) |
1323 | if (expect_false (!next)) |
|
|
1324 | { |
752 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1325 | ((coro_cctx *)prev)->idle_sp = stacklevel; |
|
|
1326 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
|
|
1327 | } |
753 | else if (prev != next) |
1328 | else if (expect_true (prev != next)) |
754 | { |
1329 | { |
755 | coro_cctx *prev__cctx; |
1330 | coro_cctx *prev__cctx; |
756 | |
1331 | |
|
|
1332 | if (expect_false (prev->flags & CF_NEW)) |
|
|
1333 | { |
|
|
1334 | /* create a new empty/source context */ |
|
|
1335 | prev->cctx = cctx_new_empty (); |
|
|
1336 | prev->flags &= ~CF_NEW; |
|
|
1337 | prev->flags |= CF_RUNNING; |
|
|
1338 | } |
|
|
1339 | |
|
|
1340 | prev->flags &= ~CF_RUNNING; |
|
|
1341 | next->flags |= CF_RUNNING; |
|
|
1342 | |
757 | LOCK; |
1343 | LOCK; |
758 | |
1344 | |
759 | if (next->mainstack) |
1345 | /* first get rid of the old state */ |
|
|
1346 | save_perl (aTHX_ prev); |
|
|
1347 | |
|
|
1348 | if (expect_false (next->flags & CF_NEW)) |
760 | { |
1349 | { |
761 | /* coroutine already started */ |
1350 | /* need to start coroutine */ |
762 | SAVE (prev, flags); |
1351 | next->flags &= ~CF_NEW; |
763 | LOAD (next); |
1352 | /* setup coroutine call */ |
|
|
1353 | coro_setup (aTHX_ next); |
764 | } |
1354 | } |
765 | else |
1355 | else |
|
|
1356 | load_perl (aTHX_ next); |
|
|
1357 | |
|
|
1358 | prev__cctx = prev->cctx; |
|
|
1359 | |
|
|
1360 | /* possibly untie and reuse the cctx */ |
|
|
1361 | if (expect_true ( |
|
|
1362 | prev__cctx->idle_sp == stacklevel |
|
|
1363 | && !(prev__cctx->flags & CC_TRACE) |
|
|
1364 | && !force_cctx |
|
|
1365 | )) |
766 | { |
1366 | { |
767 | /* need to start coroutine */ |
1367 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
768 | /* first get rid of the old state */ |
1368 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
769 | SAVE (prev, -1); |
1369 | |
770 | /* setup coroutine call */ |
|
|
771 | setup_coro (next); |
|
|
772 | /* need a stack */ |
|
|
773 | next->cctx = 0; |
1370 | prev->cctx = 0; |
|
|
1371 | |
|
|
1372 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1373 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1374 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1375 | if (!next->cctx) |
|
|
1376 | next->cctx = cctx_get (aTHX); |
|
|
1377 | |
|
|
1378 | cctx_put (prev__cctx); |
774 | } |
1379 | } |
775 | |
1380 | |
776 | if (!prev->cctx) |
1381 | ++next->usecount; |
777 | /* create a new empty context */ |
|
|
778 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
779 | |
1382 | |
780 | prev__cctx = prev->cctx; |
|
|
781 | |
|
|
782 | /* possibly "free" the cctx */ |
|
|
783 | if (prev__cctx->idle_sp == STACKLEVEL) |
|
|
784 | { |
|
|
785 | cctx_put (prev__cctx); |
|
|
786 | prev->cctx = 0; |
|
|
787 | } |
|
|
788 | |
|
|
789 | if (!next->cctx) |
1383 | if (expect_true (!next->cctx)) |
790 | next->cctx = cctx_get (); |
1384 | next->cctx = cctx_get (aTHX); |
791 | |
1385 | |
|
|
1386 | assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next)); |
|
|
1387 | transfer_next = next; |
|
|
1388 | |
792 | if (prev__cctx != next->cctx) |
1389 | if (expect_false (prev__cctx != next->cctx)) |
793 | { |
1390 | { |
794 | prev__cctx->top_env = PL_top_env; |
1391 | prev__cctx->top_env = PL_top_env; |
795 | PL_top_env = next->cctx->top_env; |
1392 | PL_top_env = next->cctx->top_env; |
796 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1393 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
797 | } |
1394 | } |
798 | |
1395 | |
799 | free_coro_mortal (); |
1396 | transfer_tail (aTHX); |
|
|
1397 | } |
|
|
1398 | } |
800 | |
1399 | |
|
|
1400 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
|
|
1401 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
|
|
1402 | |
|
|
1403 | /** high level stuff ********************************************************/ |
|
|
1404 | |
|
|
1405 | static int |
|
|
1406 | coro_state_destroy (pTHX_ struct coro *coro) |
|
|
1407 | { |
|
|
1408 | if (coro->flags & CF_DESTROYED) |
|
|
1409 | return 0; |
|
|
1410 | |
|
|
1411 | coro->flags |= CF_DESTROYED; |
|
|
1412 | |
|
|
1413 | if (coro->flags & CF_READY) |
|
|
1414 | { |
|
|
1415 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1416 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1417 | LOCK; |
|
|
1418 | --coro_nready; |
801 | UNLOCK; |
1419 | UNLOCK; |
802 | } |
1420 | } |
803 | } |
1421 | else |
804 | |
1422 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
805 | struct transfer_args |
|
|
806 | { |
|
|
807 | struct coro *prev, *next; |
|
|
808 | int flags; |
|
|
809 | }; |
|
|
810 | |
|
|
811 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags) |
|
|
812 | |
|
|
813 | static void |
|
|
814 | coro_state_destroy (struct coro *coro) |
|
|
815 | { |
|
|
816 | if (coro->refcnt--) |
|
|
817 | return; |
|
|
818 | |
1423 | |
819 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1424 | if (coro->mainstack && coro->mainstack != main_mainstack) |
820 | { |
1425 | { |
821 | struct coro temp; |
1426 | struct coro temp; |
822 | |
1427 | |
823 | SAVE ((&temp), TRANSFER_SAVE_ALL); |
1428 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
824 | LOAD (coro); |
|
|
825 | |
1429 | |
826 | coro_destroy_stacks (); |
1430 | save_perl (aTHX_ &temp); |
|
|
1431 | load_perl (aTHX_ coro); |
827 | |
1432 | |
828 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
1433 | coro_destruct (aTHX_ coro); |
829 | |
1434 | |
|
|
1435 | load_perl (aTHX_ &temp); |
|
|
1436 | |
830 | coro->mainstack = 0; |
1437 | coro->slot = 0; |
831 | } |
1438 | } |
832 | |
1439 | |
833 | cctx_free (coro->cctx); |
1440 | cctx_destroy (coro->cctx); |
834 | SvREFCNT_dec (coro->args); |
1441 | SvREFCNT_dec (coro->args); |
835 | Safefree (coro); |
1442 | |
|
|
1443 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1444 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1445 | if (coro == coro_first) coro_first = coro->next; |
|
|
1446 | |
|
|
1447 | return 1; |
836 | } |
1448 | } |
837 | |
1449 | |
838 | static int |
1450 | static int |
839 | coro_state_clear (pTHX_ SV *sv, MAGIC *mg) |
1451 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
840 | { |
1452 | { |
841 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1453 | struct coro *coro = (struct coro *)mg->mg_ptr; |
842 | mg->mg_ptr = 0; |
1454 | mg->mg_ptr = 0; |
843 | |
1455 | |
|
|
1456 | coro->hv = 0; |
|
|
1457 | |
|
|
1458 | if (--coro->refcnt < 0) |
|
|
1459 | { |
844 | coro_state_destroy (coro); |
1460 | coro_state_destroy (aTHX_ coro); |
|
|
1461 | Safefree (coro); |
|
|
1462 | } |
845 | |
1463 | |
846 | return 0; |
1464 | return 0; |
847 | } |
1465 | } |
848 | |
1466 | |
849 | static int |
1467 | static int |
… | |
… | |
856 | return 0; |
1474 | return 0; |
857 | } |
1475 | } |
858 | |
1476 | |
859 | static MGVTBL coro_state_vtbl = { |
1477 | static MGVTBL coro_state_vtbl = { |
860 | 0, 0, 0, 0, |
1478 | 0, 0, 0, 0, |
861 | coro_state_clear, |
1479 | coro_state_free, |
862 | 0, |
1480 | 0, |
863 | #ifdef MGf_DUP |
1481 | #ifdef MGf_DUP |
864 | coro_state_dup, |
1482 | coro_state_dup, |
865 | #else |
1483 | #else |
866 | # define MGf_DUP 0 |
1484 | # define MGf_DUP 0 |
867 | #endif |
1485 | #endif |
868 | }; |
1486 | }; |
869 | |
1487 | |
870 | static struct coro * |
|
|
871 | SvSTATE (SV *coro) |
|
|
872 | { |
|
|
873 | HV *stash; |
|
|
874 | MAGIC *mg; |
|
|
875 | |
|
|
876 | if (SvROK (coro)) |
|
|
877 | coro = SvRV (coro); |
|
|
878 | |
|
|
879 | stash = SvSTASH (coro); |
|
|
880 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
881 | { |
|
|
882 | /* very slow, but rare, check */ |
|
|
883 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
884 | croak ("Coro::State object required"); |
|
|
885 | } |
|
|
886 | |
|
|
887 | mg = SvMAGIC (coro); |
|
|
888 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
889 | return (struct coro *)mg->mg_ptr; |
|
|
890 | } |
|
|
891 | |
|
|
892 | static void |
1488 | static void |
893 | prepare_transfer (struct transfer_args *ta, SV *prev, SV *next, int flags) |
1489 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
894 | { |
1490 | { |
895 | ta->prev = SvSTATE (prev); |
1491 | ta->prev = SvSTATE (prev_sv); |
896 | ta->next = SvSTATE (next); |
1492 | ta->next = SvSTATE (next_sv); |
897 | ta->flags = flags; |
1493 | TRANSFER_CHECK (*ta); |
898 | } |
1494 | } |
899 | |
1495 | |
900 | static void |
1496 | static void |
901 | api_transfer (SV *prev, SV *next, int flags) |
1497 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
902 | { |
1498 | { |
903 | dTHX; |
|
|
904 | struct transfer_args ta; |
1499 | struct coro_transfer_args ta; |
905 | |
1500 | |
906 | prepare_transfer (&ta, prev, next, flags); |
1501 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
907 | TRANSFER (ta); |
1502 | TRANSFER (ta, 1); |
908 | } |
1503 | } |
909 | |
1504 | |
910 | /** Coro ********************************************************************/ |
1505 | /** Coro ********************************************************************/ |
911 | |
1506 | |
912 | #define PRIO_MAX 3 |
|
|
913 | #define PRIO_HIGH 1 |
|
|
914 | #define PRIO_NORMAL 0 |
|
|
915 | #define PRIO_LOW -1 |
|
|
916 | #define PRIO_IDLE -3 |
|
|
917 | #define PRIO_MIN -4 |
|
|
918 | |
|
|
919 | /* for Coro.pm */ |
|
|
920 | static GV *coro_current, *coro_idle; |
|
|
921 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
922 | static int coro_nready; |
|
|
923 | |
|
|
924 | static void |
1507 | static void |
925 | coro_enq (SV *sv) |
1508 | coro_enq (pTHX_ SV *coro_sv) |
|
|
1509 | { |
|
|
1510 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
|
|
1511 | } |
|
|
1512 | |
|
|
1513 | static SV * |
|
|
1514 | coro_deq (pTHX) |
926 | { |
1515 | { |
927 | int prio; |
1516 | int prio; |
928 | |
1517 | |
929 | if (SvTYPE (sv) != SVt_PVHV) |
1518 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
930 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
1519 | if (AvFILLp (coro_ready [prio]) >= 0) |
|
|
1520 | return av_shift (coro_ready [prio]); |
931 | |
1521 | |
932 | prio = SvSTATE (sv)->prio; |
1522 | return 0; |
|
|
1523 | } |
933 | |
1524 | |
934 | av_push (coro_ready [prio - PRIO_MIN], sv); |
1525 | static int |
|
|
1526 | api_ready (pTHX_ SV *coro_sv) |
|
|
1527 | { |
|
|
1528 | struct coro *coro; |
|
|
1529 | SV *sv_hook; |
|
|
1530 | void (*xs_hook)(void); |
|
|
1531 | |
|
|
1532 | if (SvROK (coro_sv)) |
|
|
1533 | coro_sv = SvRV (coro_sv); |
|
|
1534 | |
|
|
1535 | coro = SvSTATE (coro_sv); |
|
|
1536 | |
|
|
1537 | if (coro->flags & CF_READY) |
|
|
1538 | return 0; |
|
|
1539 | |
|
|
1540 | coro->flags |= CF_READY; |
|
|
1541 | |
|
|
1542 | LOCK; |
|
|
1543 | |
|
|
1544 | sv_hook = coro_nready ? 0 : coro_readyhook; |
|
|
1545 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1546 | |
|
|
1547 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
935 | coro_nready++; |
1548 | ++coro_nready; |
|
|
1549 | |
|
|
1550 | UNLOCK; |
|
|
1551 | |
|
|
1552 | if (sv_hook) |
|
|
1553 | { |
|
|
1554 | dSP; |
|
|
1555 | |
|
|
1556 | ENTER; |
|
|
1557 | SAVETMPS; |
|
|
1558 | |
|
|
1559 | PUSHMARK (SP); |
|
|
1560 | PUTBACK; |
|
|
1561 | call_sv (sv_hook, G_DISCARD); |
|
|
1562 | SPAGAIN; |
|
|
1563 | |
|
|
1564 | FREETMPS; |
|
|
1565 | LEAVE; |
|
|
1566 | } |
|
|
1567 | |
|
|
1568 | if (xs_hook) |
|
|
1569 | xs_hook (); |
|
|
1570 | |
|
|
1571 | return 1; |
|
|
1572 | } |
|
|
1573 | |
|
|
1574 | static int |
|
|
1575 | api_is_ready (pTHX_ SV *coro_sv) |
|
|
1576 | { |
|
|
1577 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
|
|
1578 | } |
|
|
1579 | |
|
|
1580 | INLINE void |
|
|
1581 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1582 | { |
|
|
1583 | SV *prev_sv, *next_sv; |
|
|
1584 | |
|
|
1585 | for (;;) |
|
|
1586 | { |
|
|
1587 | LOCK; |
|
|
1588 | next_sv = coro_deq (aTHX); |
|
|
1589 | |
|
|
1590 | /* nothing to schedule: call the idle handler */ |
|
|
1591 | if (expect_false (!next_sv)) |
|
|
1592 | { |
|
|
1593 | dSP; |
|
|
1594 | UNLOCK; |
|
|
1595 | |
|
|
1596 | ENTER; |
|
|
1597 | SAVETMPS; |
|
|
1598 | |
|
|
1599 | PUSHMARK (SP); |
|
|
1600 | PUTBACK; |
|
|
1601 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1602 | SPAGAIN; |
|
|
1603 | |
|
|
1604 | FREETMPS; |
|
|
1605 | LEAVE; |
|
|
1606 | continue; |
|
|
1607 | } |
|
|
1608 | |
|
|
1609 | ta->next = SvSTATE (next_sv); |
|
|
1610 | |
|
|
1611 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1612 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1613 | { |
|
|
1614 | UNLOCK; |
|
|
1615 | SvREFCNT_dec (next_sv); |
|
|
1616 | /* coro_nready has already been taken care of by destroy */ |
|
|
1617 | continue; |
|
|
1618 | } |
|
|
1619 | |
|
|
1620 | --coro_nready; |
|
|
1621 | UNLOCK; |
|
|
1622 | break; |
|
|
1623 | } |
|
|
1624 | |
|
|
1625 | /* free this only after the transfer */ |
|
|
1626 | prev_sv = SvRV (coro_current); |
|
|
1627 | ta->prev = SvSTATE (prev_sv); |
|
|
1628 | TRANSFER_CHECK (*ta); |
|
|
1629 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
|
|
1630 | ta->next->flags &= ~CF_READY; |
|
|
1631 | SvRV_set (coro_current, next_sv); |
|
|
1632 | |
|
|
1633 | LOCK; |
|
|
1634 | free_coro_mortal (aTHX); |
|
|
1635 | coro_mortal = prev_sv; |
|
|
1636 | UNLOCK; |
|
|
1637 | } |
|
|
1638 | |
|
|
1639 | INLINE void |
|
|
1640 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
|
|
1641 | { |
|
|
1642 | api_ready (aTHX_ coro_current); |
|
|
1643 | prepare_schedule (aTHX_ ta); |
|
|
1644 | } |
|
|
1645 | |
|
|
1646 | INLINE void |
|
|
1647 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1648 | { |
|
|
1649 | SV *prev = SvRV (coro_current); |
|
|
1650 | |
|
|
1651 | if (coro_nready) |
|
|
1652 | { |
|
|
1653 | prepare_schedule (aTHX_ ta); |
|
|
1654 | api_ready (aTHX_ prev); |
|
|
1655 | } |
|
|
1656 | else |
|
|
1657 | prepare_nop (aTHX_ ta); |
|
|
1658 | } |
|
|
1659 | |
|
|
1660 | static void |
|
|
1661 | api_schedule (pTHX) |
|
|
1662 | { |
|
|
1663 | struct coro_transfer_args ta; |
|
|
1664 | |
|
|
1665 | prepare_schedule (aTHX_ &ta); |
|
|
1666 | TRANSFER (ta, 1); |
|
|
1667 | } |
|
|
1668 | |
|
|
1669 | static int |
|
|
1670 | api_cede (pTHX) |
|
|
1671 | { |
|
|
1672 | struct coro_transfer_args ta; |
|
|
1673 | |
|
|
1674 | prepare_cede (aTHX_ &ta); |
|
|
1675 | |
|
|
1676 | if (expect_true (ta.prev != ta.next)) |
|
|
1677 | { |
|
|
1678 | TRANSFER (ta, 1); |
|
|
1679 | return 1; |
|
|
1680 | } |
|
|
1681 | else |
|
|
1682 | return 0; |
|
|
1683 | } |
|
|
1684 | |
|
|
1685 | static int |
|
|
1686 | api_cede_notself (pTHX) |
|
|
1687 | { |
|
|
1688 | if (coro_nready) |
|
|
1689 | { |
|
|
1690 | struct coro_transfer_args ta; |
|
|
1691 | |
|
|
1692 | prepare_cede_notself (aTHX_ &ta); |
|
|
1693 | TRANSFER (ta, 1); |
|
|
1694 | return 1; |
|
|
1695 | } |
|
|
1696 | else |
|
|
1697 | return 0; |
|
|
1698 | } |
|
|
1699 | |
|
|
1700 | static void |
|
|
1701 | api_trace (pTHX_ SV *coro_sv, int flags) |
|
|
1702 | { |
|
|
1703 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1704 | |
|
|
1705 | if (flags & CC_TRACE) |
|
|
1706 | { |
|
|
1707 | if (!coro->cctx) |
|
|
1708 | coro->cctx = cctx_new_run (); |
|
|
1709 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1710 | croak ("cannot enable tracing on coroutine with custom stack,"); |
|
|
1711 | |
|
|
1712 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1713 | } |
|
|
1714 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1715 | { |
|
|
1716 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1717 | |
|
|
1718 | if (coro->flags & CF_RUNNING) |
|
|
1719 | PL_runops = RUNOPS_DEFAULT; |
|
|
1720 | else |
|
|
1721 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1722 | } |
|
|
1723 | } |
|
|
1724 | |
|
|
1725 | #if 0 |
|
|
1726 | static int |
|
|
1727 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
|
|
1728 | { |
|
|
1729 | AV *padlist; |
|
|
1730 | AV *av = (AV *)mg->mg_obj; |
|
|
1731 | |
|
|
1732 | abort (); |
|
|
1733 | |
|
|
1734 | return 0; |
|
|
1735 | } |
|
|
1736 | |
|
|
1737 | static MGVTBL coro_gensub_vtbl = { |
|
|
1738 | 0, 0, 0, 0, |
|
|
1739 | coro_gensub_free |
|
|
1740 | }; |
|
|
1741 | #endif |
|
|
1742 | |
|
|
1743 | /*****************************************************************************/ |
|
|
1744 | /* PerlIO::cede */ |
|
|
1745 | |
|
|
1746 | typedef struct |
|
|
1747 | { |
|
|
1748 | PerlIOBuf base; |
|
|
1749 | NV next, every; |
|
|
1750 | } PerlIOCede; |
|
|
1751 | |
|
|
1752 | static IV |
|
|
1753 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
1754 | { |
|
|
1755 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1756 | |
|
|
1757 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
1758 | self->next = nvtime () + self->every; |
|
|
1759 | |
|
|
1760 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
936 | } |
1761 | } |
937 | |
1762 | |
938 | static SV * |
1763 | static SV * |
939 | coro_deq (int min_prio) |
1764 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
940 | { |
1765 | { |
941 | int prio = PRIO_MAX - PRIO_MIN; |
1766 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
942 | |
1767 | |
943 | min_prio -= PRIO_MIN; |
1768 | return newSVnv (self->every); |
944 | if (min_prio < 0) |
1769 | } |
945 | min_prio = 0; |
|
|
946 | |
1770 | |
947 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1771 | static IV |
948 | if (AvFILLp (coro_ready [prio]) >= 0) |
1772 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
1773 | { |
|
|
1774 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1775 | double now = nvtime (); |
|
|
1776 | |
|
|
1777 | if (now >= self->next) |
|
|
1778 | { |
|
|
1779 | api_cede (aTHX); |
|
|
1780 | self->next = now + self->every; |
|
|
1781 | } |
|
|
1782 | |
|
|
1783 | return PerlIOBuf_flush (aTHX_ f); |
|
|
1784 | } |
|
|
1785 | |
|
|
1786 | static PerlIO_funcs PerlIO_cede = |
|
|
1787 | { |
|
|
1788 | sizeof(PerlIO_funcs), |
|
|
1789 | "cede", |
|
|
1790 | sizeof(PerlIOCede), |
|
|
1791 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
1792 | PerlIOCede_pushed, |
|
|
1793 | PerlIOBuf_popped, |
|
|
1794 | PerlIOBuf_open, |
|
|
1795 | PerlIOBase_binmode, |
|
|
1796 | PerlIOCede_getarg, |
|
|
1797 | PerlIOBase_fileno, |
|
|
1798 | PerlIOBuf_dup, |
|
|
1799 | PerlIOBuf_read, |
|
|
1800 | PerlIOBuf_unread, |
|
|
1801 | PerlIOBuf_write, |
|
|
1802 | PerlIOBuf_seek, |
|
|
1803 | PerlIOBuf_tell, |
|
|
1804 | PerlIOBuf_close, |
|
|
1805 | PerlIOCede_flush, |
|
|
1806 | PerlIOBuf_fill, |
|
|
1807 | PerlIOBase_eof, |
|
|
1808 | PerlIOBase_error, |
|
|
1809 | PerlIOBase_clearerr, |
|
|
1810 | PerlIOBase_setlinebuf, |
|
|
1811 | PerlIOBuf_get_base, |
|
|
1812 | PerlIOBuf_bufsiz, |
|
|
1813 | PerlIOBuf_get_ptr, |
|
|
1814 | PerlIOBuf_get_cnt, |
|
|
1815 | PerlIOBuf_set_ptrcnt, |
|
|
1816 | }; |
|
|
1817 | |
|
|
1818 | /*****************************************************************************/ |
|
|
1819 | |
|
|
1820 | static const CV *slf_cv; /* for quick consistency check */ |
|
|
1821 | |
|
|
1822 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1823 | static SV *slf_arg0; |
|
|
1824 | static SV *slf_arg1; |
|
|
1825 | static SV *slf_arg2; |
|
|
1826 | |
|
|
1827 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1828 | /* recreate the stack frame as perl will on following calls */ |
|
|
1829 | /* since entersub cleared the stack */ |
|
|
1830 | static OP * |
|
|
1831 | pp_restore (pTHX) |
|
|
1832 | { |
|
|
1833 | dSP; |
|
|
1834 | |
|
|
1835 | PUSHMARK (SP); |
|
|
1836 | |
|
|
1837 | EXTEND (SP, 3); |
|
|
1838 | if (slf_arg0) PUSHs (sv_2mortal (slf_arg0)); |
|
|
1839 | if (slf_arg1) PUSHs (sv_2mortal (slf_arg1)); |
|
|
1840 | if (slf_arg2) PUSHs (sv_2mortal (slf_arg2)); |
|
|
1841 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1842 | |
|
|
1843 | RETURNOP (slf_restore.op_first); |
|
|
1844 | } |
|
|
1845 | |
|
|
1846 | static void |
|
|
1847 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1848 | { |
|
|
1849 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1850 | } |
|
|
1851 | |
|
|
1852 | static void |
|
|
1853 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
|
|
1854 | { |
|
|
1855 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
1856 | |
|
|
1857 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1858 | frame->check = slf_check_nop; |
|
|
1859 | frame->data = (void *)SvIV (arg [0]); |
|
|
1860 | } |
|
|
1861 | |
|
|
1862 | static void |
|
|
1863 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1864 | { |
|
|
1865 | SV **arg = (SV **)slf_frame.data; |
|
|
1866 | |
|
|
1867 | prepare_transfer (ta, arg [0], arg [1]); |
|
|
1868 | } |
|
|
1869 | |
|
|
1870 | static void |
|
|
1871 | slf_init_transfer (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
|
|
1872 | { |
|
|
1873 | if (items != 2) |
|
|
1874 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1875 | |
|
|
1876 | frame->prepare = slf_prepare_transfer; |
|
|
1877 | frame->check = slf_check_nop; |
|
|
1878 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1879 | } |
|
|
1880 | |
|
|
1881 | static void |
|
|
1882 | slf_init_schedule (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
|
|
1883 | { |
|
|
1884 | frame->prepare = prepare_schedule; |
|
|
1885 | frame->check = slf_check_nop; |
|
|
1886 | } |
|
|
1887 | |
|
|
1888 | static void |
|
|
1889 | slf_init_cede (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
|
|
1890 | { |
|
|
1891 | frame->prepare = prepare_cede; |
|
|
1892 | frame->check = slf_check_nop; |
|
|
1893 | } |
|
|
1894 | |
|
|
1895 | static void |
|
|
1896 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
|
|
1897 | { |
|
|
1898 | frame->prepare = prepare_cede_notself; |
|
|
1899 | frame->check = slf_check_nop; |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1903 | #define CVf_SLF 0x4000 |
|
|
1904 | |
|
|
1905 | /* |
|
|
1906 | * these not obviously related functions are all rolled into one |
|
|
1907 | * function to increase chances that they all will call transfer with the same |
|
|
1908 | * stack offset |
|
|
1909 | * SLF stands for "schedule-like-function". |
|
|
1910 | */ |
|
|
1911 | static OP * |
|
|
1912 | pp_slf (pTHX) |
|
|
1913 | { |
|
|
1914 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1915 | |
|
|
1916 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1917 | /* the latter happens when a new coro has been started */ |
|
|
1918 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1919 | if (expect_true (!slf_frame.prepare)) |
|
|
1920 | { |
|
|
1921 | /* first iteration */ |
|
|
1922 | dSP; |
|
|
1923 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1924 | int items = SP - arg; /* args without function object */ |
|
|
1925 | SV *gv = *sp; |
|
|
1926 | |
|
|
1927 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1928 | /* for us, divert to the real entersub */ |
|
|
1929 | if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1930 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1931 | |
|
|
1932 | /* pop args */ |
|
|
1933 | SP = PL_stack_base + POPMARK; |
|
|
1934 | |
|
|
1935 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1936 | { |
|
|
1937 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1938 | AV *av = GvAV (PL_defgv); |
|
|
1939 | arg = AvARRAY (av); |
|
|
1940 | items = AvFILLp (av) + 1; |
|
|
1941 | } |
|
|
1942 | |
|
|
1943 | PUTBACK; |
|
|
1944 | |
|
|
1945 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) (aTHX_ &slf_frame, arg, items); |
|
|
1946 | } |
|
|
1947 | |
|
|
1948 | /* now interpret the slf_frame */ |
|
|
1949 | /* we use a callback system not to make the code needlessly */ |
|
|
1950 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1951 | |
|
|
1952 | do |
|
|
1953 | { |
|
|
1954 | struct coro_transfer_args ta; |
|
|
1955 | |
|
|
1956 | slf_frame.prepare (aTHX_ &ta); |
|
|
1957 | TRANSFER (ta, 0); |
|
|
1958 | |
|
|
1959 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1960 | } |
|
|
1961 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1962 | |
|
|
1963 | { |
|
|
1964 | dSP; |
|
|
1965 | SV **bot = PL_stack_base + checkmark; |
|
|
1966 | int gimme = GIMME_V; |
|
|
1967 | |
|
|
1968 | slf_frame.prepare = 0; /* signal pp_slf that we need a new frame */ |
|
|
1969 | |
|
|
1970 | /* make sure we put something on the stack in scalar context */ |
|
|
1971 | if (gimme == G_SCALAR) |
949 | { |
1972 | { |
950 | coro_nready--; |
1973 | if (sp == bot) |
951 | return av_shift (coro_ready [prio]); |
1974 | XPUSHs (&PL_sv_undef); |
|
|
1975 | |
|
|
1976 | SP = bot + 1; |
952 | } |
1977 | } |
953 | |
1978 | |
954 | return 0; |
|
|
955 | } |
|
|
956 | |
|
|
957 | static void |
|
|
958 | api_ready (SV *coro) |
|
|
959 | { |
|
|
960 | dTHX; |
|
|
961 | |
|
|
962 | if (SvROK (coro)) |
|
|
963 | coro = SvRV (coro); |
|
|
964 | |
|
|
965 | LOCK; |
|
|
966 | coro_enq (SvREFCNT_inc (coro)); |
|
|
967 | UNLOCK; |
|
|
968 | } |
|
|
969 | |
|
|
970 | static void |
|
|
971 | prepare_schedule (struct transfer_args *ta) |
|
|
972 | { |
|
|
973 | SV *current, *prev, *next; |
|
|
974 | |
|
|
975 | current = GvSV (coro_current); |
|
|
976 | |
|
|
977 | for (;;) |
|
|
978 | { |
|
|
979 | LOCK; |
|
|
980 | next = coro_deq (PRIO_MIN); |
|
|
981 | UNLOCK; |
|
|
982 | |
|
|
983 | if (next) |
|
|
984 | break; |
|
|
985 | |
|
|
986 | { |
|
|
987 | dSP; |
|
|
988 | |
|
|
989 | ENTER; |
|
|
990 | SAVETMPS; |
|
|
991 | |
|
|
992 | PUSHMARK (SP); |
|
|
993 | PUTBACK; |
1979 | PUTBACK; |
994 | call_sv (GvSV (coro_idle), G_DISCARD); |
|
|
995 | |
|
|
996 | FREETMPS; |
|
|
997 | LEAVE; |
|
|
998 | } |
|
|
999 | } |
1980 | } |
1000 | |
1981 | |
1001 | prev = SvRV (current); |
1982 | return NORMAL; |
1002 | SvRV (current) = next; |
|
|
1003 | |
|
|
1004 | /* free this only after the transfer */ |
|
|
1005 | LOCK; |
|
|
1006 | free_coro_mortal (); |
|
|
1007 | UNLOCK; |
|
|
1008 | coro_mortal = prev; |
|
|
1009 | |
|
|
1010 | ta->prev = SvSTATE (prev); |
|
|
1011 | ta->next = SvSTATE (next); |
|
|
1012 | ta->flags = TRANSFER_SAVE_ALL; |
|
|
1013 | } |
1983 | } |
1014 | |
1984 | |
1015 | static void |
1985 | static void |
1016 | prepare_cede (struct transfer_args *ta) |
1986 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, SV **arg, int items) |
1017 | { |
1987 | { |
1018 | LOCK; |
1988 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
1019 | coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
1020 | UNLOCK; |
|
|
1021 | |
1989 | |
1022 | prepare_schedule (ta); |
1990 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
1023 | } |
1991 | && PL_op->op_ppaddr != pp_slf) |
|
|
1992 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or other means, caught"); |
1024 | |
1993 | |
1025 | static void |
1994 | if (items > 3) |
1026 | api_schedule (void) |
1995 | croak ("Coro only supports up to three arguments to SLF functions currently, caught"); |
1027 | { |
|
|
1028 | dTHX; |
|
|
1029 | struct transfer_args ta; |
|
|
1030 | |
1996 | |
1031 | prepare_schedule (&ta); |
1997 | CvFLAGS (cv) |= CVf_SLF; |
1032 | TRANSFER (ta); |
1998 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
1033 | } |
1999 | slf_cv = cv; |
1034 | |
2000 | |
1035 | static void |
2001 | /* we patch the op, and then re-run the whole call */ |
1036 | api_cede (void) |
2002 | /* we have to put the same argument on the stack for this to work */ |
1037 | { |
2003 | /* and this will be done by pp_restore */ |
1038 | dTHX; |
2004 | slf_restore.op_next = (OP *)&slf_restore; |
1039 | struct transfer_args ta; |
2005 | slf_restore.op_type = OP_NULL; |
|
|
2006 | slf_restore.op_ppaddr = pp_restore; |
|
|
2007 | slf_restore.op_first = PL_op; |
1040 | |
2008 | |
1041 | prepare_cede (&ta); |
2009 | slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0; |
1042 | TRANSFER (ta); |
2010 | slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0; |
1043 | } |
2011 | slf_arg2 = items > 2 ? SvREFCNT_inc (arg [2]) : 0; |
1044 | |
2012 | |
|
|
2013 | PL_op->op_ppaddr = pp_slf; |
|
|
2014 | |
|
|
2015 | PL_op = (OP *)&slf_restore; |
|
|
2016 | } |
|
|
2017 | |
1045 | MODULE = Coro::State PACKAGE = Coro::State |
2018 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1046 | |
2019 | |
1047 | PROTOTYPES: DISABLE |
2020 | PROTOTYPES: DISABLE |
1048 | |
2021 | |
1049 | BOOT: |
2022 | BOOT: |
1050 | { |
2023 | { |
1051 | #ifdef USE_ITHREADS |
2024 | #ifdef USE_ITHREADS |
1052 | MUTEX_INIT (&coro_mutex); |
2025 | MUTEX_INIT (&coro_lock); |
|
|
2026 | # if CORO_PTHREAD |
|
|
2027 | coro_thx = PERL_GET_CONTEXT; |
|
|
2028 | # endif |
1053 | #endif |
2029 | #endif |
1054 | BOOT_PAGESIZE; |
2030 | BOOT_PAGESIZE; |
1055 | |
2031 | |
|
|
2032 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
2033 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
2034 | |
|
|
2035 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
2036 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
2037 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
2038 | |
|
|
2039 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
2040 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
2041 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
|
|
2042 | |
1056 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
2043 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1057 | |
2044 | |
1058 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
2045 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1059 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
2046 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1060 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
2047 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
|
|
2048 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1061 | |
2049 | |
1062 | main_mainstack = PL_mainstack; |
2050 | main_mainstack = PL_mainstack; |
|
|
2051 | main_top_env = PL_top_env; |
1063 | |
2052 | |
|
|
2053 | while (main_top_env->je_prev) |
|
|
2054 | main_top_env = main_top_env->je_prev; |
|
|
2055 | |
1064 | coroapi.ver = CORO_API_VERSION; |
2056 | coroapi.ver = CORO_API_VERSION; |
|
|
2057 | coroapi.rev = CORO_API_REVISION; |
|
|
2058 | |
1065 | coroapi.transfer = api_transfer; |
2059 | coroapi.transfer = api_transfer; |
|
|
2060 | |
|
|
2061 | coroapi.sv_state = SvSTATE_; |
|
|
2062 | coroapi.execute_slf = api_execute_slf; |
|
|
2063 | coroapi.prepare_nop = prepare_nop; |
|
|
2064 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2065 | coroapi.prepare_cede = prepare_cede; |
|
|
2066 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
2067 | |
|
|
2068 | { |
|
|
2069 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
2070 | |
|
|
2071 | if (!svp) croak ("Time::HiRes is required"); |
|
|
2072 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
2073 | |
|
|
2074 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
2075 | } |
1066 | |
2076 | |
1067 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2077 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1068 | } |
2078 | } |
1069 | |
2079 | |
1070 | SV * |
2080 | SV * |
1071 | new (char *klass, ...) |
2081 | new (char *klass, ...) |
1072 | CODE: |
2082 | CODE: |
1073 | { |
2083 | { |
1074 | struct coro *coro; |
2084 | struct coro *coro; |
|
|
2085 | MAGIC *mg; |
1075 | HV *hv; |
2086 | HV *hv; |
1076 | int i; |
2087 | int i; |
1077 | |
2088 | |
1078 | Newz (0, coro, 1, struct coro); |
2089 | Newz (0, coro, 1, struct coro); |
1079 | coro->args = newAV (); |
2090 | coro->args = newAV (); |
|
|
2091 | coro->flags = CF_NEW; |
1080 | |
2092 | |
|
|
2093 | if (coro_first) coro_first->prev = coro; |
|
|
2094 | coro->next = coro_first; |
|
|
2095 | coro_first = coro; |
|
|
2096 | |
1081 | hv = newHV (); |
2097 | coro->hv = hv = newHV (); |
1082 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
2098 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
2099 | mg->mg_flags |= MGf_DUP; |
1083 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2100 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1084 | |
2101 | |
|
|
2102 | av_extend (coro->args, items - 1); |
1085 | for (i = 1; i < items; i++) |
2103 | for (i = 1; i < items; i++) |
1086 | av_push (coro->args, newSVsv (ST (i))); |
2104 | av_push (coro->args, newSVsv (ST (i))); |
1087 | } |
2105 | } |
1088 | OUTPUT: |
2106 | OUTPUT: |
1089 | RETVAL |
2107 | RETVAL |
1090 | |
2108 | |
1091 | void |
2109 | void |
1092 | _set_stacklevel (...) |
2110 | _set_stacklevel (...) |
1093 | ALIAS: |
2111 | CODE: |
1094 | Coro::State::transfer = 1 |
2112 | api_execute_slf (aTHX_ cv, slf_init_set_stacklevel, &ST (0), items); |
1095 | Coro::schedule = 2 |
|
|
1096 | Coro::cede = 3 |
|
|
1097 | Coro::Cont::yield = 4 |
|
|
1098 | CODE: |
|
|
1099 | { |
|
|
1100 | struct transfer_args ta; |
|
|
1101 | |
|
|
1102 | switch (ix) |
|
|
1103 | { |
|
|
1104 | case 0: |
|
|
1105 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1106 | ta.next = 0; |
|
|
1107 | ta.flags = TRANSFER_SET_STACKLEVEL; |
|
|
1108 | break; |
|
|
1109 | |
|
|
1110 | case 1: |
|
|
1111 | if (items != 3) |
|
|
1112 | croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items); |
|
|
1113 | |
|
|
1114 | prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); |
|
|
1115 | break; |
|
|
1116 | |
|
|
1117 | case 2: |
|
|
1118 | prepare_schedule (&ta); |
|
|
1119 | break; |
|
|
1120 | |
|
|
1121 | case 3: |
|
|
1122 | prepare_cede (&ta); |
|
|
1123 | break; |
|
|
1124 | |
|
|
1125 | case 4: |
|
|
1126 | { |
|
|
1127 | SV *yieldstack; |
|
|
1128 | SV *sv; |
|
|
1129 | AV *defav = GvAV (PL_defgv); |
|
|
1130 | |
|
|
1131 | yieldstack = *hv_fetch ( |
|
|
1132 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1133 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1134 | 0 |
|
|
1135 | ); |
|
|
1136 | |
|
|
1137 | /* set up @_ -- ugly */ |
|
|
1138 | av_clear (defav); |
|
|
1139 | av_fill (defav, items - 1); |
|
|
1140 | while (items--) |
|
|
1141 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1142 | |
|
|
1143 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1144 | ta.prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
|
|
1145 | ta.next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
|
|
1146 | ta.flags = 0; |
|
|
1147 | SvREFCNT_dec (sv); |
|
|
1148 | } |
|
|
1149 | break; |
|
|
1150 | |
|
|
1151 | } |
|
|
1152 | |
|
|
1153 | TRANSFER (ta); |
|
|
1154 | } |
|
|
1155 | |
2113 | |
1156 | void |
2114 | void |
1157 | _clone_state_from (SV *dst, SV *src) |
2115 | transfer (...) |
1158 | CODE: |
2116 | CODE: |
1159 | { |
2117 | api_execute_slf (aTHX_ cv, slf_init_transfer, &ST (0), items); |
1160 | struct coro *coro_src = SvSTATE (src); |
|
|
1161 | |
2118 | |
1162 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
2119 | bool |
1163 | |
2120 | _destroy (SV *coro_sv) |
1164 | ++coro_src->refcnt; |
2121 | CODE: |
1165 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
2122 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1166 | } |
2123 | OUTPUT: |
|
|
2124 | RETVAL |
1167 | |
2125 | |
1168 | void |
2126 | void |
1169 | _exit (code) |
2127 | _exit (int code) |
1170 | int code |
|
|
1171 | PROTOTYPE: $ |
2128 | PROTOTYPE: $ |
1172 | CODE: |
2129 | CODE: |
1173 | _exit (code); |
2130 | _exit (code); |
|
|
2131 | |
|
|
2132 | int |
|
|
2133 | cctx_stacksize (int new_stacksize = 0) |
|
|
2134 | CODE: |
|
|
2135 | RETVAL = cctx_stacksize; |
|
|
2136 | if (new_stacksize) |
|
|
2137 | { |
|
|
2138 | cctx_stacksize = new_stacksize; |
|
|
2139 | ++cctx_gen; |
|
|
2140 | } |
|
|
2141 | OUTPUT: |
|
|
2142 | RETVAL |
|
|
2143 | |
|
|
2144 | int |
|
|
2145 | cctx_max_idle (int max_idle = 0) |
|
|
2146 | CODE: |
|
|
2147 | RETVAL = cctx_max_idle; |
|
|
2148 | if (max_idle > 1) |
|
|
2149 | cctx_max_idle = max_idle; |
|
|
2150 | OUTPUT: |
|
|
2151 | RETVAL |
1174 | |
2152 | |
1175 | int |
2153 | int |
1176 | cctx_count () |
2154 | cctx_count () |
1177 | CODE: |
2155 | CODE: |
1178 | RETVAL = cctx_count; |
2156 | RETVAL = cctx_count; |
… | |
… | |
1184 | CODE: |
2162 | CODE: |
1185 | RETVAL = cctx_idle; |
2163 | RETVAL = cctx_idle; |
1186 | OUTPUT: |
2164 | OUTPUT: |
1187 | RETVAL |
2165 | RETVAL |
1188 | |
2166 | |
|
|
2167 | void |
|
|
2168 | list () |
|
|
2169 | PPCODE: |
|
|
2170 | { |
|
|
2171 | struct coro *coro; |
|
|
2172 | for (coro = coro_first; coro; coro = coro->next) |
|
|
2173 | if (coro->hv) |
|
|
2174 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
2175 | } |
|
|
2176 | |
|
|
2177 | void |
|
|
2178 | call (Coro::State coro, SV *coderef) |
|
|
2179 | ALIAS: |
|
|
2180 | eval = 1 |
|
|
2181 | CODE: |
|
|
2182 | { |
|
|
2183 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
|
|
2184 | { |
|
|
2185 | struct coro temp; |
|
|
2186 | |
|
|
2187 | if (!(coro->flags & CF_RUNNING)) |
|
|
2188 | { |
|
|
2189 | PUTBACK; |
|
|
2190 | save_perl (aTHX_ &temp); |
|
|
2191 | load_perl (aTHX_ coro); |
|
|
2192 | } |
|
|
2193 | |
|
|
2194 | { |
|
|
2195 | dSP; |
|
|
2196 | ENTER; |
|
|
2197 | SAVETMPS; |
|
|
2198 | PUTBACK; |
|
|
2199 | PUSHSTACK; |
|
|
2200 | PUSHMARK (SP); |
|
|
2201 | |
|
|
2202 | if (ix) |
|
|
2203 | eval_sv (coderef, 0); |
|
|
2204 | else |
|
|
2205 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
2206 | |
|
|
2207 | POPSTACK; |
|
|
2208 | SPAGAIN; |
|
|
2209 | FREETMPS; |
|
|
2210 | LEAVE; |
|
|
2211 | PUTBACK; |
|
|
2212 | } |
|
|
2213 | |
|
|
2214 | if (!(coro->flags & CF_RUNNING)) |
|
|
2215 | { |
|
|
2216 | save_perl (aTHX_ coro); |
|
|
2217 | load_perl (aTHX_ &temp); |
|
|
2218 | SPAGAIN; |
|
|
2219 | } |
|
|
2220 | } |
|
|
2221 | } |
|
|
2222 | |
|
|
2223 | SV * |
|
|
2224 | is_ready (Coro::State coro) |
|
|
2225 | PROTOTYPE: $ |
|
|
2226 | ALIAS: |
|
|
2227 | is_ready = CF_READY |
|
|
2228 | is_running = CF_RUNNING |
|
|
2229 | is_new = CF_NEW |
|
|
2230 | is_destroyed = CF_DESTROYED |
|
|
2231 | CODE: |
|
|
2232 | RETVAL = boolSV (coro->flags & ix); |
|
|
2233 | OUTPUT: |
|
|
2234 | RETVAL |
|
|
2235 | |
|
|
2236 | void |
|
|
2237 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2238 | PROTOTYPE: $;$ |
|
|
2239 | CODE: |
|
|
2240 | SvREFCNT_dec (self->throw); |
|
|
2241 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2242 | |
|
|
2243 | void |
|
|
2244 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2245 | C_ARGS: aTHX_ coro, flags |
|
|
2246 | |
|
|
2247 | SV * |
|
|
2248 | has_cctx (Coro::State coro) |
|
|
2249 | PROTOTYPE: $ |
|
|
2250 | CODE: |
|
|
2251 | RETVAL = boolSV (!!coro->cctx); |
|
|
2252 | OUTPUT: |
|
|
2253 | RETVAL |
|
|
2254 | |
|
|
2255 | int |
|
|
2256 | is_traced (Coro::State coro) |
|
|
2257 | PROTOTYPE: $ |
|
|
2258 | CODE: |
|
|
2259 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
2260 | OUTPUT: |
|
|
2261 | RETVAL |
|
|
2262 | |
|
|
2263 | UV |
|
|
2264 | rss (Coro::State coro) |
|
|
2265 | PROTOTYPE: $ |
|
|
2266 | ALIAS: |
|
|
2267 | usecount = 1 |
|
|
2268 | CODE: |
|
|
2269 | switch (ix) |
|
|
2270 | { |
|
|
2271 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
2272 | case 1: RETVAL = coro->usecount; break; |
|
|
2273 | } |
|
|
2274 | OUTPUT: |
|
|
2275 | RETVAL |
|
|
2276 | |
|
|
2277 | void |
|
|
2278 | force_cctx () |
|
|
2279 | CODE: |
|
|
2280 | struct coro *coro = SvSTATE (coro_current); |
|
|
2281 | coro->cctx->idle_sp = 0; |
|
|
2282 | |
|
|
2283 | void |
|
|
2284 | swap_defsv (Coro::State self) |
|
|
2285 | PROTOTYPE: $ |
|
|
2286 | ALIAS: |
|
|
2287 | swap_defav = 1 |
|
|
2288 | CODE: |
|
|
2289 | if (!self->slot) |
|
|
2290 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
2291 | else |
|
|
2292 | { |
|
|
2293 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
2294 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
2295 | |
|
|
2296 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
2297 | } |
|
|
2298 | |
1189 | MODULE = Coro::State PACKAGE = Coro |
2299 | MODULE = Coro::State PACKAGE = Coro |
1190 | |
2300 | |
1191 | BOOT: |
2301 | BOOT: |
1192 | { |
2302 | { |
1193 | int i; |
2303 | int i; |
1194 | |
2304 | |
|
|
2305 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2306 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
2307 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
2308 | |
|
|
2309 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
|
|
2310 | SvREADONLY_on (coro_current); |
|
|
2311 | |
1195 | coro_stash = gv_stashpv ("Coro", TRUE); |
2312 | coro_stash = gv_stashpv ("Coro", TRUE); |
1196 | |
2313 | |
1197 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2314 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1198 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
2315 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1199 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
2316 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1200 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
2317 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1201 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
2318 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1202 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
2319 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1203 | |
2320 | |
1204 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
|
|
1205 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
|
|
1206 | |
|
|
1207 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2321 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1208 | coro_ready[i] = newAV (); |
2322 | coro_ready[i] = newAV (); |
1209 | |
2323 | |
1210 | { |
2324 | { |
1211 | SV *sv = perl_get_sv("Coro::API", 1); |
2325 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1212 | |
2326 | |
1213 | coroapi.schedule = api_schedule; |
2327 | coroapi.schedule = api_schedule; |
1214 | coroapi.cede = api_cede; |
2328 | coroapi.cede = api_cede; |
|
|
2329 | coroapi.cede_notself = api_cede_notself; |
1215 | coroapi.ready = api_ready; |
2330 | coroapi.ready = api_ready; |
|
|
2331 | coroapi.is_ready = api_is_ready; |
1216 | coroapi.nready = &coro_nready; |
2332 | coroapi.nready = coro_nready; |
1217 | coroapi.current = coro_current; |
2333 | coroapi.current = coro_current; |
1218 | |
2334 | |
1219 | GCoroAPI = &coroapi; |
2335 | GCoroAPI = &coroapi; |
1220 | sv_setiv (sv, (IV)&coroapi); |
2336 | sv_setiv (sv, (IV)&coroapi); |
1221 | SvREADONLY_on (sv); |
2337 | SvREADONLY_on (sv); |
1222 | } |
2338 | } |
1223 | } |
2339 | } |
|
|
2340 | |
|
|
2341 | void |
|
|
2342 | schedule (...) |
|
|
2343 | CODE: |
|
|
2344 | api_execute_slf (aTHX_ cv, slf_init_schedule, &ST (0), items); |
|
|
2345 | |
|
|
2346 | void |
|
|
2347 | cede (...) |
|
|
2348 | CODE: |
|
|
2349 | api_execute_slf (aTHX_ cv, slf_init_cede, &ST (0), items); |
|
|
2350 | |
|
|
2351 | void |
|
|
2352 | cede_notself (...) |
|
|
2353 | CODE: |
|
|
2354 | api_execute_slf (aTHX_ cv, slf_init_cede_notself, &ST (0), items); |
|
|
2355 | |
|
|
2356 | void |
|
|
2357 | _set_current (SV *current) |
|
|
2358 | PROTOTYPE: $ |
|
|
2359 | CODE: |
|
|
2360 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
2361 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
2362 | |
|
|
2363 | void |
|
|
2364 | _set_readyhook (SV *hook) |
|
|
2365 | PROTOTYPE: $ |
|
|
2366 | CODE: |
|
|
2367 | LOCK; |
|
|
2368 | SvREFCNT_dec (coro_readyhook); |
|
|
2369 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
|
|
2370 | UNLOCK; |
1224 | |
2371 | |
1225 | int |
2372 | int |
1226 | prio (Coro::State coro, int newprio = 0) |
2373 | prio (Coro::State coro, int newprio = 0) |
1227 | ALIAS: |
2374 | ALIAS: |
1228 | nice = 1 |
2375 | nice = 1 |
… | |
… | |
1231 | RETVAL = coro->prio; |
2378 | RETVAL = coro->prio; |
1232 | |
2379 | |
1233 | if (items > 1) |
2380 | if (items > 1) |
1234 | { |
2381 | { |
1235 | if (ix) |
2382 | if (ix) |
1236 | newprio += coro->prio; |
2383 | newprio = coro->prio - newprio; |
1237 | |
2384 | |
1238 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
2385 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1239 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
2386 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1240 | |
2387 | |
1241 | coro->prio = newprio; |
2388 | coro->prio = newprio; |
1242 | } |
2389 | } |
1243 | } |
2390 | } |
|
|
2391 | OUTPUT: |
|
|
2392 | RETVAL |
1244 | |
2393 | |
1245 | void |
2394 | SV * |
1246 | ready (SV *self) |
2395 | ready (SV *self) |
1247 | PROTOTYPE: $ |
2396 | PROTOTYPE: $ |
1248 | CODE: |
2397 | CODE: |
1249 | api_ready (self); |
2398 | RETVAL = boolSV (api_ready (aTHX_ self)); |
|
|
2399 | OUTPUT: |
|
|
2400 | RETVAL |
1250 | |
2401 | |
1251 | int |
2402 | int |
1252 | nready (...) |
2403 | nready (...) |
1253 | PROTOTYPE: |
2404 | PROTOTYPE: |
1254 | CODE: |
2405 | CODE: |
1255 | RETVAL = coro_nready; |
2406 | RETVAL = coro_nready; |
1256 | OUTPUT: |
2407 | OUTPUT: |
1257 | RETVAL |
2408 | RETVAL |
1258 | |
2409 | |
1259 | MODULE = Coro::State PACKAGE = Coro::AIO |
2410 | # for async_pool speedup |
|
|
2411 | void |
|
|
2412 | _pool_1 (SV *cb) |
|
|
2413 | CODE: |
|
|
2414 | { |
|
|
2415 | struct coro *coro = SvSTATE (coro_current); |
|
|
2416 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2417 | AV *defav = GvAV (PL_defgv); |
|
|
2418 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2419 | AV *invoke_av; |
|
|
2420 | int i, len; |
|
|
2421 | |
|
|
2422 | if (!invoke) |
|
|
2423 | { |
|
|
2424 | SV *old = PL_diehook; |
|
|
2425 | PL_diehook = 0; |
|
|
2426 | SvREFCNT_dec (old); |
|
|
2427 | croak ("\3async_pool terminate\2\n"); |
|
|
2428 | } |
|
|
2429 | |
|
|
2430 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2431 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2432 | |
|
|
2433 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2434 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2435 | |
|
|
2436 | invoke_av = (AV *)SvRV (invoke); |
|
|
2437 | len = av_len (invoke_av); |
|
|
2438 | |
|
|
2439 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2440 | |
|
|
2441 | if (len > 0) |
|
|
2442 | { |
|
|
2443 | av_fill (defav, len - 1); |
|
|
2444 | for (i = 0; i < len; ++i) |
|
|
2445 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
|
|
2446 | } |
|
|
2447 | |
|
|
2448 | SvREFCNT_dec (invoke); |
|
|
2449 | } |
|
|
2450 | |
|
|
2451 | void |
|
|
2452 | _pool_2 (SV *cb) |
|
|
2453 | CODE: |
|
|
2454 | { |
|
|
2455 | struct coro *coro = SvSTATE (coro_current); |
|
|
2456 | |
|
|
2457 | sv_setsv (cb, &PL_sv_undef); |
|
|
2458 | |
|
|
2459 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2460 | coro->saved_deffh = 0; |
|
|
2461 | |
|
|
2462 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2463 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2464 | { |
|
|
2465 | SV *old = PL_diehook; |
|
|
2466 | PL_diehook = 0; |
|
|
2467 | SvREFCNT_dec (old); |
|
|
2468 | croak ("\3async_pool terminate\2\n"); |
|
|
2469 | } |
|
|
2470 | |
|
|
2471 | av_clear (GvAV (PL_defgv)); |
|
|
2472 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2473 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2474 | |
|
|
2475 | coro->prio = 0; |
|
|
2476 | |
|
|
2477 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2478 | api_trace (aTHX_ coro_current, 0); |
|
|
2479 | |
|
|
2480 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2481 | } |
|
|
2482 | |
|
|
2483 | #if 0 |
|
|
2484 | |
|
|
2485 | void |
|
|
2486 | _generator_call (...) |
|
|
2487 | PROTOTYPE: @ |
|
|
2488 | PPCODE: |
|
|
2489 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2490 | xxxx |
|
|
2491 | abort (); |
1260 | |
2492 | |
1261 | SV * |
2493 | SV * |
1262 | _get_state () |
2494 | gensub (SV *sub, ...) |
1263 | CODE: |
2495 | PROTOTYPE: &;@ |
|
|
2496 | CODE: |
1264 | { |
2497 | { |
1265 | struct { |
2498 | struct coro *coro; |
1266 | int errorno; |
2499 | MAGIC *mg; |
1267 | int laststype; |
2500 | CV *xcv; |
1268 | int laststatval; |
2501 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
1269 | Stat_t statcache; |
2502 | int i; |
1270 | } data; |
|
|
1271 | |
2503 | |
1272 | data.errorno = errno; |
2504 | CvGV (ncv) = CvGV (cv); |
1273 | data.laststype = PL_laststype; |
2505 | CvFILE (ncv) = CvFILE (cv); |
1274 | data.laststatval = PL_laststatval; |
|
|
1275 | data.statcache = PL_statcache; |
|
|
1276 | |
2506 | |
1277 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
2507 | Newz (0, coro, 1, struct coro); |
|
|
2508 | coro->args = newAV (); |
|
|
2509 | coro->flags = CF_NEW; |
|
|
2510 | |
|
|
2511 | av_extend (coro->args, items - 1); |
|
|
2512 | for (i = 1; i < items; i++) |
|
|
2513 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2514 | |
|
|
2515 | CvISXSUB_on (ncv); |
|
|
2516 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2517 | |
|
|
2518 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2519 | |
|
|
2520 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2521 | CvANON_on (ncv); |
|
|
2522 | |
|
|
2523 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2524 | RETVAL = newRV_noinc ((SV *)ncv); |
1278 | } |
2525 | } |
1279 | OUTPUT: |
2526 | OUTPUT: |
1280 | RETVAL |
2527 | RETVAL |
1281 | |
2528 | |
|
|
2529 | #endif |
|
|
2530 | |
|
|
2531 | |
|
|
2532 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2533 | |
1282 | void |
2534 | void |
1283 | _set_state (char *data_) |
2535 | _get_state (SV *self) |
|
|
2536 | PPCODE: |
|
|
2537 | { |
|
|
2538 | AV *defav = GvAV (PL_defgv); |
|
|
2539 | AV *av = newAV (); |
|
|
2540 | int i; |
|
|
2541 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2542 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2543 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2544 | SvPOK_only (data_sv); |
|
|
2545 | |
|
|
2546 | data->errorno = errno; |
|
|
2547 | data->laststype = PL_laststype; |
|
|
2548 | data->laststatval = PL_laststatval; |
|
|
2549 | data->statcache = PL_statcache; |
|
|
2550 | |
|
|
2551 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2552 | |
|
|
2553 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2554 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2555 | |
|
|
2556 | av_push (av, data_sv); |
|
|
2557 | |
|
|
2558 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2559 | |
|
|
2560 | api_ready (aTHX_ self); |
|
|
2561 | } |
|
|
2562 | |
|
|
2563 | void |
|
|
2564 | _set_state (SV *state) |
1284 | PROTOTYPE: $ |
2565 | PROTOTYPE: $ |
|
|
2566 | PPCODE: |
|
|
2567 | { |
|
|
2568 | AV *av = (AV *)SvRV (state); |
|
|
2569 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2570 | int i; |
|
|
2571 | |
|
|
2572 | errno = data->errorno; |
|
|
2573 | PL_laststype = data->laststype; |
|
|
2574 | PL_laststatval = data->laststatval; |
|
|
2575 | PL_statcache = data->statcache; |
|
|
2576 | |
|
|
2577 | EXTEND (SP, AvFILLp (av)); |
|
|
2578 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2579 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2580 | } |
|
|
2581 | |
|
|
2582 | |
|
|
2583 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2584 | |
|
|
2585 | BOOT: |
|
|
2586 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2587 | |
|
|
2588 | SV * |
|
|
2589 | _schedule (...) |
|
|
2590 | PROTOTYPE: @ |
1285 | CODE: |
2591 | CODE: |
1286 | { |
2592 | { |
1287 | struct { |
2593 | static int incede; |
1288 | int errorno; |
|
|
1289 | int laststype; |
|
|
1290 | int laststatval; |
|
|
1291 | Stat_t statcache; |
|
|
1292 | } *data = (void *)data_; |
|
|
1293 | |
2594 | |
1294 | errno = data->errorno; |
2595 | api_cede_notself (aTHX); |
1295 | PL_laststype = data->laststype; |
2596 | |
1296 | PL_laststatval = data->laststatval; |
2597 | ++incede; |
1297 | PL_statcache = data->statcache; |
2598 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2599 | ; |
|
|
2600 | |
|
|
2601 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2602 | if (coro_nready >= incede) |
|
|
2603 | { |
|
|
2604 | PUSHMARK (SP); |
|
|
2605 | PUTBACK; |
|
|
2606 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2607 | SPAGAIN; |
|
|
2608 | } |
|
|
2609 | |
|
|
2610 | --incede; |
1298 | } |
2611 | } |
|
|
2612 | |
|
|
2613 | |
|
|
2614 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
2615 | |
|
|
2616 | BOOT: |
|
|
2617 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
2618 | |