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1 | #include "libcoro/coro.c" |
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2 | |
1 | #define PERL_NO_GET_CONTEXT |
3 | #define PERL_NO_GET_CONTEXT |
2 | |
4 | #define PERL_EXT |
3 | #include "libcoro/coro.c" |
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4 | |
5 | |
5 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
6 | #include "perl.h" |
7 | #include "perl.h" |
7 | #include "XSUB.h" |
8 | #include "XSUB.h" |
8 | |
9 | |
9 | #include "patchlevel.h" |
10 | #include "patchlevel.h" |
10 | |
11 | |
11 | #if PERL_VERSION < 6 |
12 | #include <stdio.h> |
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13 | #include <errno.h> |
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14 | #include <assert.h> |
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15 | |
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16 | #ifdef HAVE_MMAP |
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17 | # include <unistd.h> |
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18 | # include <sys/mman.h> |
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19 | # ifndef MAP_ANONYMOUS |
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20 | # ifdef MAP_ANON |
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21 | # define MAP_ANONYMOUS MAP_ANON |
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22 | # else |
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23 | # undef HAVE_MMAP |
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24 | # endif |
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25 | # endif |
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26 | # include <limits.h> |
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27 | # ifndef PAGESIZE |
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28 | # define PAGESIZE pagesize |
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29 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
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30 | static long pagesize; |
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31 | # else |
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32 | # define BOOT_PAGESIZE (void)0 |
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33 | # endif |
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34 | #else |
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35 | # define PAGESIZE 0 |
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36 | # define BOOT_PAGESIZE (void)0 |
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37 | #endif |
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38 | |
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39 | #if CORO_USE_VALGRIND |
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40 | # include <valgrind/valgrind.h> |
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41 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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42 | #else |
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43 | # define REGISTER_STACK(cctx,start,end) |
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44 | #endif |
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45 | |
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46 | /* the maximum number of idle cctx that will be pooled */ |
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47 | #define MAX_IDLE_CCTX 8 |
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48 | |
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49 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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50 | (PERL_REVISION > (a) \ |
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51 | || (PERL_REVISION == (a) \ |
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52 | && (PERL_VERSION > (b) \ |
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53 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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54 | |
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55 | #if !PERL_VERSION_ATLEAST (5,6,0) |
12 | # ifndef PL_ppaddr |
56 | # ifndef PL_ppaddr |
13 | # define PL_ppaddr ppaddr |
57 | # define PL_ppaddr ppaddr |
14 | # endif |
58 | # endif |
15 | # ifndef call_sv |
59 | # ifndef call_sv |
16 | # define call_sv perl_call_sv |
60 | # define call_sv perl_call_sv |
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… | |
27 | # ifndef IS_PADCONST |
71 | # ifndef IS_PADCONST |
28 | # define IS_PADCONST(v) 0 |
72 | # define IS_PADCONST(v) 0 |
29 | # endif |
73 | # endif |
30 | #endif |
74 | #endif |
31 | |
75 | |
32 | #include <errno.h> |
76 | /* 5.8.7 */ |
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77 | #ifndef SvRV_set |
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78 | # define SvRV_set(s,v) SvRV(s) = (v) |
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79 | #endif |
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80 | |
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81 | /* 5.8.8 */ |
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82 | #ifndef GV_NOTQUAL |
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83 | # define GV_NOTQUAL 0 |
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84 | #endif |
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85 | #ifndef newSV |
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86 | # define newSV(l) NEWSV(0,l) |
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87 | #endif |
33 | |
88 | |
34 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
89 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
35 | # undef STACKGUARD |
90 | # undef CORO_STACKGUARD |
36 | #endif |
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37 | |
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38 | #ifndef STACKGUARD |
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39 | # define STACKGUARD 0 |
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40 | #endif |
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41 | |
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42 | #ifdef HAVE_MMAP |
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43 | # include <unistd.h> |
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44 | # include <sys/mman.h> |
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45 | # ifndef MAP_ANONYMOUS |
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46 | # ifdef MAP_ANON |
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47 | # define MAP_ANONYMOUS MAP_ANON |
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48 | # else |
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49 | # undef HAVE_MMAP |
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50 | # endif |
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51 | # endif |
91 | #endif |
52 | # include <limits.h> |
92 | |
53 | # ifndef PAGESIZE |
93 | #ifndef CORO_STACKGUARD |
54 | # define PAGESIZE pagesize |
94 | # define CORO_STACKGUARD 0 |
55 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
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56 | static long pagesize; |
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57 | # else |
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58 | # define BOOT_PAGESIZE |
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59 | # endif |
95 | #endif |
60 | #endif |
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61 | |
96 | |
62 | #define SUB_INIT "Coro::State::initialize" |
97 | /* prefer perl internal functions over our own? */ |
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98 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
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99 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
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100 | #endif |
63 | |
101 | |
64 | /* The next macro should declare a variable stacklevel that contains and approximation |
102 | /* The next macros try to return the current stack pointer, in an as |
65 | * to the current C stack pointer. Its property is that it changes with each call |
103 | * portable way as possible. */ |
66 | * and should be unique. */ |
104 | #define dSTACKLEVEL volatile char stacklevel |
67 | #define dSTACKLEVEL void *stacklevel = &stacklevel |
105 | #define STACKLEVEL ((void *)&stacklevel) |
68 | |
106 | |
69 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
107 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
70 | |
108 | |
71 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
109 | #if __GNUC__ >= 3 |
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110 | # define attribute(x) __attribute__(x) |
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111 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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112 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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113 | #else |
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114 | # define attribute(x) |
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115 | # define BARRIER |
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116 | # define expect(expr,value) (expr) |
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117 | #endif |
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118 | |
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119 | #define expect_false(expr) expect ((expr) != 0, 0) |
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120 | #define expect_true(expr) expect ((expr) != 0, 1) |
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121 | |
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122 | #define NOINLINE attribute ((noinline)) |
72 | |
123 | |
73 | #include "CoroAPI.h" |
124 | #include "CoroAPI.h" |
74 | |
125 | |
75 | #ifdef USE_ITHREADS |
126 | #ifdef USE_ITHREADS |
76 | static perl_mutex coro_mutex; |
127 | static perl_mutex coro_mutex; |
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… | |
79 | #else |
130 | #else |
80 | # define LOCK (void)0 |
131 | # define LOCK (void)0 |
81 | # define UNLOCK (void)0 |
132 | # define UNLOCK (void)0 |
82 | #endif |
133 | #endif |
83 | |
134 | |
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135 | #define strpair(const) const, sizeof (const) - 1 |
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136 | |
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137 | /* helper storage struct for Coro::AIO */ |
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138 | struct io_state |
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139 | { |
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140 | int errorno; |
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141 | I32 laststype; |
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142 | int laststatval; |
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143 | Stat_t statcache; |
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144 | }; |
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145 | |
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146 | static size_t coro_stacksize = CORO_STACKSIZE; |
84 | static struct CoroAPI coroapi; |
147 | static struct CoroAPI coroapi; |
85 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
148 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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149 | static JMPENV *main_top_env; |
86 | static HV *coro_state_stash, *coro_stash; |
150 | static HV *coro_state_stash, *coro_stash; |
87 | static SV *coro_mortal; /* will be freed after next transfer */ |
151 | static SV *coro_mortal; /* will be freed after next transfer */ |
88 | |
152 | |
89 | /* this is actually not just the c stack but also c registers etc... */ |
153 | static GV *irsgv; /* $/ */ |
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154 | static GV *stdoutgv; /* *STDOUT */ |
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155 | |
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156 | static HV *hv_sig; /* %SIG */ |
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157 | static SV *sv_diehook; |
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158 | static SV *sv_warnhook; |
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159 | |
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160 | /* async_pool helper stuff */ |
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161 | static SV *sv_pool_rss; |
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162 | static SV *sv_pool_size; |
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163 | static AV *av_async_pool; |
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164 | |
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165 | static struct coro_cctx *cctx_first; |
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166 | static int cctx_count, cctx_idle; |
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167 | |
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168 | enum { |
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169 | CC_MAPPED = 0x01, |
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170 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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171 | CC_TRACE = 0x04, |
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172 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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173 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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174 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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175 | }; |
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176 | |
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177 | /* this is a structure representing a c-level coroutine */ |
90 | typedef struct coro_stack { |
178 | typedef struct coro_cctx { |
91 | struct coro_stack *next; |
179 | struct coro_cctx *next; |
92 | |
180 | |
93 | void *idle_sp; |
181 | /* the stack */ |
94 | void *sptr; |
182 | void *sptr; |
95 | long ssize; /* positive == mmap, otherwise malloc */ |
183 | size_t ssize; |
96 | |
184 | |
97 | /* cpu state */ |
185 | /* cpu state */ |
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186 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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187 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
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188 | JMPENV *top_env; |
98 | coro_context cctx; |
189 | coro_context cctx; |
99 | } coro_stack; |
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100 | |
190 | |
101 | static coro_stack *main_stack; |
191 | #if CORO_USE_VALGRIND |
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192 | int valgrind_id; |
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193 | #endif |
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194 | unsigned char flags; |
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195 | } coro_cctx; |
102 | |
196 | |
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197 | enum { |
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198 | CF_RUNNING = 0x0001, /* coroutine is running */ |
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199 | CF_READY = 0x0002, /* coroutine is ready */ |
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200 | CF_NEW = 0x0004, /* has never been switched to */ |
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201 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
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202 | }; |
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203 | |
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204 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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205 | typedef struct { |
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206 | SV *defsv; |
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207 | AV *defav; |
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208 | SV *errsv; |
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209 | SV *irsgv; |
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210 | #define VAR(name,type) type name; |
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211 | # include "state.h" |
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212 | #undef VAR |
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213 | } perl_slots; |
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214 | |
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215 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
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216 | |
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217 | /* this is a structure representing a perl-level coroutine */ |
103 | struct coro { |
218 | struct coro { |
104 | /* optionally saved, might be zero */ |
219 | /* the c coroutine allocated to this perl coroutine, if any */ |
105 | AV *defav; |
220 | coro_cctx *cctx; |
106 | SV *defsv; |
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107 | SV *errsv; |
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108 | |
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109 | /* saved global state not related to stacks */ |
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110 | U8 dowarn; |
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111 | I32 in_eval; |
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112 | |
221 | |
113 | /* the c stack, if any */ |
222 | /* process data */ |
114 | coro_stack *stack; |
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115 | |
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116 | /* the stacks and related info (callchain etc..) */ |
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117 | PERL_SI *curstackinfo; |
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118 | AV *curstack; |
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119 | AV *mainstack; |
223 | AV *mainstack; |
120 | SV **stack_sp; |
224 | perl_slots *slot; /* basically the saved sp */ |
121 | OP *op; |
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122 | SV **curpad; |
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123 | AV *comppad; |
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124 | CV *compcv; |
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125 | SV **stack_base; |
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126 | SV **stack_max; |
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127 | SV **tmps_stack; |
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128 | I32 tmps_floor; |
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129 | I32 tmps_ix; |
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130 | I32 tmps_max; |
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131 | I32 *markstack; |
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132 | I32 *markstack_ptr; |
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133 | I32 *markstack_max; |
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134 | I32 *scopestack; |
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135 | I32 scopestack_ix; |
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136 | I32 scopestack_max; |
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137 | ANY *savestack; |
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138 | I32 savestack_ix; |
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139 | I32 savestack_max; |
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140 | OP **retstack; |
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141 | I32 retstack_ix; |
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142 | I32 retstack_max; |
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143 | PMOP *curpm; |
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144 | COP *curcop; |
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145 | JMPENV *top_env; |
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146 | |
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147 | /* coro process data */ |
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148 | int prio; |
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149 | |
225 | |
150 | /* data associated with this coroutine (initial args) */ |
226 | /* data associated with this coroutine (initial args) */ |
151 | AV *args; |
227 | AV *args; |
152 | int refcnt; |
228 | int refcnt; |
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229 | int flags; /* CF_ flags */ |
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230 | |
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231 | /* statistics */ |
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232 | int usecount; /* number of transfers to this coro */ |
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233 | |
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234 | /* coro process data */ |
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235 | int prio; |
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236 | SV *throw; |
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237 | |
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238 | /* async_pool */ |
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239 | SV *saved_deffh; |
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240 | |
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241 | /* linked list */ |
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242 | struct coro *next, *prev; |
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243 | HV *hv; /* the perl hash associated with this coro, if any */ |
153 | }; |
244 | }; |
154 | |
245 | |
155 | typedef struct coro *Coro__State; |
246 | typedef struct coro *Coro__State; |
156 | typedef struct coro *Coro__State_or_hashref; |
247 | typedef struct coro *Coro__State_or_hashref; |
157 | |
248 | |
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249 | /** Coro ********************************************************************/ |
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250 | |
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251 | #define PRIO_MAX 3 |
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252 | #define PRIO_HIGH 1 |
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253 | #define PRIO_NORMAL 0 |
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254 | #define PRIO_LOW -1 |
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255 | #define PRIO_IDLE -3 |
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256 | #define PRIO_MIN -4 |
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257 | |
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258 | /* for Coro.pm */ |
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259 | static SV *coro_current; |
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260 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
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261 | static int coro_nready; |
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262 | static struct coro *coro_first; |
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263 | |
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264 | /** lowlevel stuff **********************************************************/ |
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265 | |
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266 | static SV * |
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267 | coro_get_sv (const char *name, int create) |
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268 | { |
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269 | #if PERL_VERSION_ATLEAST (5,9,0) |
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270 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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271 | get_sv (name, create); |
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272 | #endif |
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273 | return get_sv (name, create); |
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274 | } |
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275 | |
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276 | static AV * |
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277 | coro_get_av (const char *name, int create) |
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278 | { |
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279 | #if PERL_VERSION_ATLEAST (5,9,0) |
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280 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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281 | get_av (name, create); |
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282 | #endif |
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283 | return get_av (name, create); |
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284 | } |
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285 | |
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286 | static HV * |
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287 | coro_get_hv (const char *name, int create) |
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288 | { |
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289 | #if PERL_VERSION_ATLEAST (5,9,0) |
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290 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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291 | get_hv (name, create); |
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292 | #endif |
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293 | return get_hv (name, create); |
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294 | } |
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295 | |
158 | static AV * |
296 | static AV * |
159 | coro_clone_padlist (pTHX_ CV *cv) |
297 | coro_clone_padlist (pTHX_ CV *cv) |
160 | { |
298 | { |
161 | AV *padlist = CvPADLIST (cv); |
299 | AV *padlist = CvPADLIST (cv); |
162 | AV *newpadlist, *newpad; |
300 | AV *newpadlist, *newpad; |
163 | |
301 | |
164 | newpadlist = newAV (); |
302 | newpadlist = newAV (); |
165 | AvREAL_off (newpadlist); |
303 | AvREAL_off (newpadlist); |
166 | #if PERL_VERSION < 9 |
304 | #if PERL_VERSION_ATLEAST (5,9,0) |
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305 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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306 | #else |
167 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
307 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
168 | #else |
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169 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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170 | #endif |
308 | #endif |
171 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
309 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
172 | --AvFILLp (padlist); |
310 | --AvFILLp (padlist); |
173 | |
311 | |
174 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
312 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
… | |
… | |
218 | |
356 | |
219 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
357 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
220 | |
358 | |
221 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
359 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
222 | |
360 | |
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361 | #define CORO_MAGIC(cv) \ |
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362 | SvMAGIC (cv) \ |
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363 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
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364 | ? SvMAGIC (cv) \ |
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365 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
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366 | : 0 |
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367 | |
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368 | static struct coro * |
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369 | SvSTATE_ (pTHX_ SV *coro) |
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370 | { |
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371 | HV *stash; |
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372 | MAGIC *mg; |
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373 | |
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374 | if (SvROK (coro)) |
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375 | coro = SvRV (coro); |
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376 | |
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377 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
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378 | croak ("Coro::State object required"); |
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379 | |
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380 | stash = SvSTASH (coro); |
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381 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
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382 | { |
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383 | /* very slow, but rare, check */ |
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384 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
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385 | croak ("Coro::State object required"); |
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386 | } |
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387 | |
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388 | mg = CORO_MAGIC (coro); |
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389 | return (struct coro *)mg->mg_ptr; |
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390 | } |
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391 | |
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392 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
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393 | |
223 | /* the next two functions merely cache the padlists */ |
394 | /* the next two functions merely cache the padlists */ |
224 | static void |
395 | static void |
225 | get_padlist (pTHX_ CV *cv) |
396 | get_padlist (pTHX_ CV *cv) |
226 | { |
397 | { |
227 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
398 | MAGIC *mg = CORO_MAGIC (cv); |
|
|
399 | AV *av; |
228 | |
400 | |
229 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
401 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
230 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
402 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
231 | else |
403 | else |
232 | { |
404 | { |
233 | #if 0 |
405 | #if CORO_PREFER_PERL_FUNCTIONS |
234 | /* this should work - but it doesn't :( */ |
406 | /* this is probably cleaner, but also slower? */ |
235 | CV *cp = Perl_cv_clone (aTHX_ cv); |
407 | CV *cp = Perl_cv_clone (cv); |
236 | CvPADLIST (cv) = CvPADLIST (cp); |
408 | CvPADLIST (cv) = CvPADLIST (cp); |
237 | CvPADLIST (cp) = 0; |
409 | CvPADLIST (cp) = 0; |
238 | SvREFCNT_dec (cp); |
410 | SvREFCNT_dec (cp); |
239 | #else |
411 | #else |
240 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
412 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
… | |
… | |
243 | } |
415 | } |
244 | |
416 | |
245 | static void |
417 | static void |
246 | put_padlist (pTHX_ CV *cv) |
418 | put_padlist (pTHX_ CV *cv) |
247 | { |
419 | { |
248 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
420 | MAGIC *mg = CORO_MAGIC (cv); |
|
|
421 | AV *av; |
249 | |
422 | |
250 | if (!mg) |
423 | if (expect_false (!mg)) |
251 | { |
424 | { |
252 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
425 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
253 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
426 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
254 | mg->mg_virtual = &vtbl_coro; |
427 | mg->mg_virtual = &vtbl_coro; |
255 | mg->mg_obj = (SV *)newAV (); |
428 | mg->mg_obj = (SV *)newAV (); |
256 | } |
429 | } |
257 | |
430 | |
258 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
431 | av = (AV *)mg->mg_obj; |
259 | } |
|
|
260 | |
432 | |
261 | #define SB do { |
433 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
262 | #define SE } while (0) |
434 | av_extend (av, AvMAX (av) + 1); |
263 | |
435 | |
264 | #define LOAD(state) load_state(aTHX_ (state)); |
436 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
265 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
437 | } |
266 | |
438 | |
267 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
439 | /** load & save, init *******************************************************/ |
268 | |
440 | |
269 | static void |
441 | static void |
270 | load_state(pTHX_ Coro__State c) |
442 | load_perl (pTHX_ Coro__State c) |
271 | { |
443 | { |
272 | PL_dowarn = c->dowarn; |
444 | perl_slots *slot = c->slot; |
273 | PL_in_eval = c->in_eval; |
445 | c->slot = 0; |
274 | |
446 | |
275 | PL_curstackinfo = c->curstackinfo; |
|
|
276 | PL_curstack = c->curstack; |
|
|
277 | PL_mainstack = c->mainstack; |
447 | PL_mainstack = c->mainstack; |
278 | PL_stack_sp = c->stack_sp; |
|
|
279 | PL_op = c->op; |
|
|
280 | PL_curpad = c->curpad; |
|
|
281 | PL_comppad = c->comppad; |
|
|
282 | PL_compcv = c->compcv; |
|
|
283 | PL_stack_base = c->stack_base; |
|
|
284 | PL_stack_max = c->stack_max; |
|
|
285 | PL_tmps_stack = c->tmps_stack; |
|
|
286 | PL_tmps_floor = c->tmps_floor; |
|
|
287 | PL_tmps_ix = c->tmps_ix; |
|
|
288 | PL_tmps_max = c->tmps_max; |
|
|
289 | PL_markstack = c->markstack; |
|
|
290 | PL_markstack_ptr = c->markstack_ptr; |
|
|
291 | PL_markstack_max = c->markstack_max; |
|
|
292 | PL_scopestack = c->scopestack; |
|
|
293 | PL_scopestack_ix = c->scopestack_ix; |
|
|
294 | PL_scopestack_max = c->scopestack_max; |
|
|
295 | PL_savestack = c->savestack; |
|
|
296 | PL_savestack_ix = c->savestack_ix; |
|
|
297 | PL_savestack_max = c->savestack_max; |
|
|
298 | #if PERL_VERSION < 9 |
|
|
299 | PL_retstack = c->retstack; |
|
|
300 | PL_retstack_ix = c->retstack_ix; |
|
|
301 | PL_retstack_max = c->retstack_max; |
|
|
302 | #endif |
|
|
303 | PL_curpm = c->curpm; |
|
|
304 | PL_curcop = c->curcop; |
|
|
305 | PL_top_env = c->top_env; |
|
|
306 | |
448 | |
307 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
449 | GvSV (PL_defgv) = slot->defsv; |
308 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
450 | GvAV (PL_defgv) = slot->defav; |
309 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
451 | GvSV (PL_errgv) = slot->errsv; |
|
|
452 | GvSV (irsgv) = slot->irsgv; |
|
|
453 | |
|
|
454 | #define VAR(name,type) PL_ ## name = slot->name; |
|
|
455 | # include "state.h" |
|
|
456 | #undef VAR |
|
|
457 | |
|
|
458 | /*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/ |
|
|
459 | /*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/ |
310 | |
460 | |
311 | { |
461 | { |
312 | dSP; |
462 | dSP; |
|
|
463 | |
313 | CV *cv; |
464 | CV *cv; |
314 | |
465 | |
315 | /* now do the ugly restore mess */ |
466 | /* now do the ugly restore mess */ |
316 | while ((cv = (CV *)POPs)) |
467 | while (expect_true (cv = (CV *)POPs)) |
317 | { |
468 | { |
318 | AV *padlist = (AV *)POPs; |
|
|
319 | |
|
|
320 | if (padlist) |
|
|
321 | { |
|
|
322 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
469 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
323 | CvPADLIST(cv) = padlist; |
470 | CvDEPTH (cv) = PTR2IV (POPs); |
324 | } |
471 | CvPADLIST (cv) = (AV *)POPs; |
325 | |
|
|
326 | ++CvDEPTH(cv); |
|
|
327 | } |
472 | } |
328 | |
473 | |
329 | PUTBACK; |
474 | PUTBACK; |
330 | } |
475 | } |
331 | } |
476 | } |
332 | |
477 | |
333 | static void |
478 | static void |
334 | save_state(pTHX_ Coro__State c, int flags) |
479 | save_perl (pTHX_ Coro__State c) |
335 | { |
480 | { |
336 | { |
481 | { |
337 | dSP; |
482 | dSP; |
338 | I32 cxix = cxstack_ix; |
483 | I32 cxix = cxstack_ix; |
339 | PERL_CONTEXT *ccstk = cxstack; |
484 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
342 | /* |
487 | /* |
343 | * the worst thing you can imagine happens first - we have to save |
488 | * the worst thing you can imagine happens first - we have to save |
344 | * (and reinitialize) all cv's in the whole callchain :( |
489 | * (and reinitialize) all cv's in the whole callchain :( |
345 | */ |
490 | */ |
346 | |
491 | |
347 | PUSHs (Nullsv); |
492 | XPUSHs (Nullsv); |
348 | /* this loop was inspired by pp_caller */ |
493 | /* this loop was inspired by pp_caller */ |
349 | for (;;) |
494 | for (;;) |
350 | { |
495 | { |
351 | while (cxix >= 0) |
496 | while (expect_true (cxix >= 0)) |
352 | { |
497 | { |
353 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
498 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
354 | |
499 | |
355 | if (CxTYPE(cx) == CXt_SUB) |
500 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
356 | { |
501 | { |
357 | CV *cv = cx->blk_sub.cv; |
502 | CV *cv = cx->blk_sub.cv; |
|
|
503 | |
358 | if (CvDEPTH(cv)) |
504 | if (expect_true (CvDEPTH (cv))) |
359 | { |
505 | { |
360 | EXTEND (SP, CvDEPTH(cv)*2); |
506 | EXTEND (SP, 3); |
361 | |
|
|
362 | while (--CvDEPTH(cv)) |
|
|
363 | { |
|
|
364 | /* this tells the restore code to increment CvDEPTH */ |
|
|
365 | PUSHs (Nullsv); |
|
|
366 | PUSHs ((SV *)cv); |
|
|
367 | } |
|
|
368 | |
|
|
369 | PUSHs ((SV *)CvPADLIST(cv)); |
507 | PUSHs ((SV *)CvPADLIST (cv)); |
|
|
508 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
370 | PUSHs ((SV *)cv); |
509 | PUSHs ((SV *)cv); |
371 | |
510 | |
|
|
511 | CvDEPTH (cv) = 0; |
372 | get_padlist (aTHX_ cv); |
512 | get_padlist (aTHX_ cv); |
373 | } |
513 | } |
374 | } |
514 | } |
375 | #ifdef CXt_FORMAT |
|
|
376 | else if (CxTYPE(cx) == CXt_FORMAT) |
|
|
377 | { |
|
|
378 | /* I never used formats, so how should I know how these are implemented? */ |
|
|
379 | /* my bold guess is as a simple, plain sub... */ |
|
|
380 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
|
|
381 | } |
|
|
382 | #endif |
|
|
383 | } |
515 | } |
384 | |
516 | |
385 | if (top_si->si_type == PERLSI_MAIN) |
517 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
386 | break; |
518 | break; |
387 | |
519 | |
388 | top_si = top_si->si_prev; |
520 | top_si = top_si->si_prev; |
389 | ccstk = top_si->si_cxstack; |
521 | ccstk = top_si->si_cxstack; |
390 | cxix = top_si->si_cxix; |
522 | cxix = top_si->si_cxix; |
391 | } |
523 | } |
392 | |
524 | |
393 | PUTBACK; |
525 | PUTBACK; |
394 | } |
526 | } |
395 | |
527 | |
396 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
528 | /* allocate some space on the context stack for our purposes */ |
397 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
529 | /* we manually unroll here, as usually 2 slots is enough */ |
398 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
530 | if (SLOT_COUNT >= 1) CXINC; |
|
|
531 | if (SLOT_COUNT >= 2) CXINC; |
|
|
532 | if (SLOT_COUNT >= 3) CXINC; |
|
|
533 | { |
|
|
534 | int i; |
|
|
535 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
536 | CXINC; |
|
|
537 | } |
|
|
538 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
399 | |
539 | |
400 | c->dowarn = PL_dowarn; |
|
|
401 | c->in_eval = PL_in_eval; |
|
|
402 | |
|
|
403 | c->curstackinfo = PL_curstackinfo; |
|
|
404 | c->curstack = PL_curstack; |
|
|
405 | c->mainstack = PL_mainstack; |
540 | c->mainstack = PL_mainstack; |
406 | c->stack_sp = PL_stack_sp; |
541 | |
407 | c->op = PL_op; |
542 | { |
408 | c->curpad = PL_curpad; |
543 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
409 | c->comppad = PL_comppad; |
544 | |
410 | c->compcv = PL_compcv; |
545 | slot->defav = GvAV (PL_defgv); |
411 | c->stack_base = PL_stack_base; |
546 | slot->defsv = DEFSV; |
412 | c->stack_max = PL_stack_max; |
547 | slot->errsv = ERRSV; |
413 | c->tmps_stack = PL_tmps_stack; |
548 | slot->irsgv = GvSV (irsgv); |
414 | c->tmps_floor = PL_tmps_floor; |
549 | |
415 | c->tmps_ix = PL_tmps_ix; |
550 | #define VAR(name,type) slot->name = PL_ ## name; |
416 | c->tmps_max = PL_tmps_max; |
551 | # include "state.h" |
417 | c->markstack = PL_markstack; |
552 | #undef VAR |
418 | c->markstack_ptr = PL_markstack_ptr; |
553 | } |
419 | c->markstack_max = PL_markstack_max; |
|
|
420 | c->scopestack = PL_scopestack; |
|
|
421 | c->scopestack_ix = PL_scopestack_ix; |
|
|
422 | c->scopestack_max = PL_scopestack_max; |
|
|
423 | c->savestack = PL_savestack; |
|
|
424 | c->savestack_ix = PL_savestack_ix; |
|
|
425 | c->savestack_max = PL_savestack_max; |
|
|
426 | #if PERL_VERSION < 9 |
|
|
427 | c->retstack = PL_retstack; |
|
|
428 | c->retstack_ix = PL_retstack_ix; |
|
|
429 | c->retstack_max = PL_retstack_max; |
|
|
430 | #endif |
|
|
431 | c->curpm = PL_curpm; |
|
|
432 | c->curcop = PL_curcop; |
|
|
433 | c->top_env = PL_top_env; |
|
|
434 | } |
554 | } |
435 | |
555 | |
436 | /* |
556 | /* |
437 | * allocate various perl stacks. This is an exact copy |
557 | * allocate various perl stacks. This is an exact copy |
438 | * of perl.c:init_stacks, except that it uses less memory |
558 | * of perl.c:init_stacks, except that it uses less memory |
439 | * on the (sometimes correct) assumption that coroutines do |
559 | * on the (sometimes correct) assumption that coroutines do |
440 | * not usually need a lot of stackspace. |
560 | * not usually need a lot of stackspace. |
441 | */ |
561 | */ |
|
|
562 | #if 1 |
|
|
563 | # define coro_init_stacks init_stacks |
|
|
564 | #else |
442 | static void |
565 | static void |
443 | coro_init_stacks (pTHX) |
566 | coro_init_stacks (pTHX) |
444 | { |
567 | { |
445 | LOCK; |
568 | PL_curstackinfo = new_stackinfo(32, 8); |
446 | |
|
|
447 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
|
|
448 | PL_curstackinfo->si_type = PERLSI_MAIN; |
569 | PL_curstackinfo->si_type = PERLSI_MAIN; |
449 | PL_curstack = PL_curstackinfo->si_stack; |
570 | PL_curstack = PL_curstackinfo->si_stack; |
450 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
571 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
451 | |
572 | |
452 | PL_stack_base = AvARRAY(PL_curstack); |
573 | PL_stack_base = AvARRAY(PL_curstack); |
453 | PL_stack_sp = PL_stack_base; |
574 | PL_stack_sp = PL_stack_base; |
454 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
575 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
455 | |
576 | |
456 | New(50,PL_tmps_stack,96,SV*); |
577 | New(50,PL_tmps_stack,32,SV*); |
457 | PL_tmps_floor = -1; |
578 | PL_tmps_floor = -1; |
458 | PL_tmps_ix = -1; |
579 | PL_tmps_ix = -1; |
459 | PL_tmps_max = 96; |
580 | PL_tmps_max = 32; |
460 | |
581 | |
461 | New(54,PL_markstack,16,I32); |
582 | New(54,PL_markstack,16,I32); |
462 | PL_markstack_ptr = PL_markstack; |
583 | PL_markstack_ptr = PL_markstack; |
463 | PL_markstack_max = PL_markstack + 16; |
584 | PL_markstack_max = PL_markstack + 16; |
464 | |
585 | |
465 | #ifdef SET_MARK_OFFSET |
586 | #ifdef SET_MARK_OFFSET |
466 | SET_MARK_OFFSET; |
587 | SET_MARK_OFFSET; |
467 | #endif |
588 | #endif |
468 | |
589 | |
469 | New(54,PL_scopestack,16,I32); |
590 | New(54,PL_scopestack,8,I32); |
470 | PL_scopestack_ix = 0; |
591 | PL_scopestack_ix = 0; |
471 | PL_scopestack_max = 16; |
592 | PL_scopestack_max = 8; |
472 | |
593 | |
473 | New(54,PL_savestack,96,ANY); |
594 | New(54,PL_savestack,24,ANY); |
474 | PL_savestack_ix = 0; |
595 | PL_savestack_ix = 0; |
475 | PL_savestack_max = 96; |
596 | PL_savestack_max = 24; |
476 | |
597 | |
477 | #if PERL_VERSION < 9 |
598 | #if !PERL_VERSION_ATLEAST (5,9,0) |
478 | New(54,PL_retstack,8,OP*); |
599 | New(54,PL_retstack,4,OP*); |
479 | PL_retstack_ix = 0; |
600 | PL_retstack_ix = 0; |
480 | PL_retstack_max = 8; |
601 | PL_retstack_max = 4; |
481 | #endif |
602 | #endif |
482 | |
|
|
483 | UNLOCK; |
|
|
484 | } |
603 | } |
|
|
604 | #endif |
485 | |
605 | |
486 | /* |
606 | /* |
487 | * destroy the stacks, the callchain etc... |
607 | * destroy the stacks, the callchain etc... |
488 | */ |
608 | */ |
489 | static void |
609 | static void |
490 | destroy_stacks(pTHX) |
610 | coro_destroy_stacks (pTHX) |
491 | { |
611 | { |
492 | if (!IN_DESTRUCT) |
|
|
493 | { |
|
|
494 | /* is this ugly, I ask? */ |
|
|
495 | LEAVE_SCOPE (0); |
|
|
496 | |
|
|
497 | /* sure it is, but more important: is it correct?? :/ */ |
|
|
498 | FREETMPS; |
|
|
499 | |
|
|
500 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
|
|
501 | } |
|
|
502 | |
|
|
503 | while (PL_curstackinfo->si_next) |
612 | while (PL_curstackinfo->si_next) |
504 | PL_curstackinfo = PL_curstackinfo->si_next; |
613 | PL_curstackinfo = PL_curstackinfo->si_next; |
505 | |
614 | |
506 | while (PL_curstackinfo) |
615 | while (PL_curstackinfo) |
507 | { |
616 | { |
508 | PERL_SI *p = PL_curstackinfo->si_prev; |
617 | PERL_SI *p = PL_curstackinfo->si_prev; |
509 | |
618 | |
510 | { /*D*//*remove*/ |
|
|
511 | dSP; |
|
|
512 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
|
|
513 | PUTBACK; /* possibly superfluous */ |
|
|
514 | } |
|
|
515 | |
|
|
516 | if (!IN_DESTRUCT) |
619 | if (!IN_DESTRUCT) |
517 | { |
|
|
518 | dounwind (-1);/*D*//*remove*/ |
|
|
519 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
620 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
520 | } |
|
|
521 | |
621 | |
522 | Safefree (PL_curstackinfo->si_cxstack); |
622 | Safefree (PL_curstackinfo->si_cxstack); |
523 | Safefree (PL_curstackinfo); |
623 | Safefree (PL_curstackinfo); |
524 | PL_curstackinfo = p; |
624 | PL_curstackinfo = p; |
525 | } |
625 | } |
526 | |
626 | |
527 | Safefree (PL_tmps_stack); |
627 | Safefree (PL_tmps_stack); |
528 | Safefree (PL_markstack); |
628 | Safefree (PL_markstack); |
529 | Safefree (PL_scopestack); |
629 | Safefree (PL_scopestack); |
530 | Safefree (PL_savestack); |
630 | Safefree (PL_savestack); |
531 | #if PERL_VERSION < 9 |
631 | #if !PERL_VERSION_ATLEAST (5,9,0) |
532 | Safefree (PL_retstack); |
632 | Safefree (PL_retstack); |
533 | #endif |
633 | #endif |
534 | } |
634 | } |
535 | |
635 | |
536 | static void |
636 | static size_t |
537 | setup_coro (struct coro *coro) |
637 | coro_rss (pTHX_ struct coro *coro) |
|
|
638 | { |
|
|
639 | size_t rss = sizeof (*coro); |
|
|
640 | |
|
|
641 | if (coro->mainstack) |
|
|
642 | { |
|
|
643 | perl_slots tmp_slot; |
|
|
644 | perl_slots *slot; |
|
|
645 | |
|
|
646 | if (coro->flags & CF_RUNNING) |
|
|
647 | { |
|
|
648 | slot = &tmp_slot; |
|
|
649 | |
|
|
650 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
651 | # include "state.h" |
|
|
652 | #undef VAR |
|
|
653 | } |
|
|
654 | else |
|
|
655 | slot = coro->slot; |
|
|
656 | |
|
|
657 | rss += sizeof (slot->curstackinfo); |
|
|
658 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
659 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
|
|
660 | rss += slot->tmps_max * sizeof (SV *); |
|
|
661 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
662 | rss += slot->scopestack_max * sizeof (I32); |
|
|
663 | rss += slot->savestack_max * sizeof (ANY); |
|
|
664 | |
|
|
665 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
666 | rss += slot->retstack_max * sizeof (OP *); |
|
|
667 | #endif |
|
|
668 | } |
|
|
669 | |
|
|
670 | return rss; |
|
|
671 | } |
|
|
672 | |
|
|
673 | /** coroutine stack handling ************************************************/ |
|
|
674 | |
|
|
675 | static void |
|
|
676 | coro_setup (pTHX_ struct coro *coro) |
538 | { |
677 | { |
539 | /* |
678 | /* |
540 | * emulate part of the perl startup here. |
679 | * emulate part of the perl startup here. |
541 | */ |
680 | */ |
542 | dTHX; |
681 | coro_init_stacks (aTHX); |
|
|
682 | |
|
|
683 | PL_runops = RUNOPS_DEFAULT; |
|
|
684 | PL_curcop = &PL_compiling; |
|
|
685 | PL_in_eval = EVAL_NULL; |
|
|
686 | PL_comppad = 0; |
|
|
687 | PL_curpm = 0; |
|
|
688 | PL_curpad = 0; |
|
|
689 | PL_localizing = 0; |
|
|
690 | PL_dirty = 0; |
|
|
691 | PL_restartop = 0; |
|
|
692 | PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); |
|
|
693 | PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); |
|
|
694 | |
|
|
695 | GvSV (PL_defgv) = newSV (0); |
|
|
696 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
697 | GvSV (PL_errgv) = newSV (0); |
|
|
698 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
699 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
700 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
|
|
701 | |
|
|
702 | { |
|
|
703 | dSP; |
|
|
704 | LOGOP myop; |
|
|
705 | |
|
|
706 | Zero (&myop, 1, LOGOP); |
|
|
707 | myop.op_next = Nullop; |
|
|
708 | myop.op_flags = OPf_WANT_VOID; |
|
|
709 | |
|
|
710 | PUSHMARK (SP); |
|
|
711 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
|
|
712 | PUTBACK; |
|
|
713 | PL_op = (OP *)&myop; |
|
|
714 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
715 | SPAGAIN; |
|
|
716 | } |
|
|
717 | |
|
|
718 | ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */ |
|
|
719 | } |
|
|
720 | |
|
|
721 | static void |
|
|
722 | coro_destroy (pTHX_ struct coro *coro) |
|
|
723 | { |
|
|
724 | if (!IN_DESTRUCT) |
|
|
725 | { |
|
|
726 | /* restore all saved variables and stuff */ |
|
|
727 | LEAVE_SCOPE (0); |
|
|
728 | assert (PL_tmps_floor == -1); |
|
|
729 | |
|
|
730 | /* free all temporaries */ |
|
|
731 | FREETMPS; |
|
|
732 | assert (PL_tmps_ix == -1); |
|
|
733 | |
|
|
734 | /* unwind all extra stacks */ |
|
|
735 | POPSTACK_TO (PL_mainstack); |
|
|
736 | |
|
|
737 | /* unwind main stack */ |
|
|
738 | dounwind (-1); |
|
|
739 | } |
|
|
740 | |
|
|
741 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
742 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
743 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
744 | SvREFCNT_dec (PL_defoutgv); |
|
|
745 | SvREFCNT_dec (PL_rs); |
|
|
746 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
747 | |
|
|
748 | SvREFCNT_dec (PL_diehook); |
|
|
749 | SvREFCNT_dec (PL_warnhook); |
|
|
750 | |
|
|
751 | SvREFCNT_dec (coro->saved_deffh); |
|
|
752 | SvREFCNT_dec (coro->throw); |
|
|
753 | |
|
|
754 | coro_destroy_stacks (aTHX); |
|
|
755 | } |
|
|
756 | |
|
|
757 | static void |
|
|
758 | free_coro_mortal (pTHX) |
|
|
759 | { |
|
|
760 | if (expect_true (coro_mortal)) |
|
|
761 | { |
|
|
762 | SvREFCNT_dec (coro_mortal); |
|
|
763 | coro_mortal = 0; |
|
|
764 | } |
|
|
765 | } |
|
|
766 | |
|
|
767 | static int |
|
|
768 | runops_trace (pTHX) |
|
|
769 | { |
|
|
770 | COP *oldcop = 0; |
|
|
771 | int oldcxix = -2; |
|
|
772 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
773 | coro_cctx *cctx = coro->cctx; |
|
|
774 | |
|
|
775 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
776 | { |
|
|
777 | PERL_ASYNC_CHECK (); |
|
|
778 | |
|
|
779 | if (cctx->flags & CC_TRACE_ALL) |
|
|
780 | { |
|
|
781 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
782 | { |
|
|
783 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
784 | SV **bot, **top; |
|
|
785 | AV *av = newAV (); /* return values */ |
|
|
786 | SV **cb; |
|
|
787 | dSP; |
|
|
788 | |
|
|
789 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
790 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
791 | if (isGV (gv)) |
|
|
792 | gv_efullname3 (fullname, gv, 0); |
|
|
793 | |
|
|
794 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
795 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
796 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
797 | : bot; |
|
|
798 | |
|
|
799 | av_extend (av, top - bot); |
|
|
800 | while (bot < top) |
|
|
801 | av_push (av, SvREFCNT_inc (*bot++)); |
|
|
802 | |
|
|
803 | PL_runops = RUNOPS_DEFAULT; |
|
|
804 | ENTER; |
|
|
805 | SAVETMPS; |
|
|
806 | EXTEND (SP, 3); |
|
|
807 | PUSHMARK (SP); |
|
|
808 | PUSHs (&PL_sv_no); |
|
|
809 | PUSHs (fullname); |
|
|
810 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
811 | PUTBACK; |
|
|
812 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); |
|
|
813 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
814 | SPAGAIN; |
|
|
815 | FREETMPS; |
|
|
816 | LEAVE; |
|
|
817 | PL_runops = runops_trace; |
|
|
818 | } |
|
|
819 | |
|
|
820 | if (oldcop != PL_curcop) |
|
|
821 | { |
|
|
822 | oldcop = PL_curcop; |
|
|
823 | |
|
|
824 | if (PL_curcop != &PL_compiling) |
|
|
825 | { |
|
|
826 | SV **cb; |
|
|
827 | |
|
|
828 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
829 | { |
|
|
830 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
831 | |
|
|
832 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
833 | { |
|
|
834 | runops_proc_t old_runops = PL_runops; |
|
|
835 | dSP; |
|
|
836 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
837 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
838 | |
|
|
839 | if (isGV (gv)) |
|
|
840 | gv_efullname3 (fullname, gv, 0); |
|
|
841 | |
|
|
842 | PL_runops = RUNOPS_DEFAULT; |
|
|
843 | ENTER; |
|
|
844 | SAVETMPS; |
|
|
845 | EXTEND (SP, 3); |
|
|
846 | PUSHMARK (SP); |
|
|
847 | PUSHs (&PL_sv_yes); |
|
|
848 | PUSHs (fullname); |
|
|
849 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
850 | PUTBACK; |
|
|
851 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); |
|
|
852 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
853 | SPAGAIN; |
|
|
854 | FREETMPS; |
|
|
855 | LEAVE; |
|
|
856 | PL_runops = runops_trace; |
|
|
857 | } |
|
|
858 | |
|
|
859 | oldcxix = cxstack_ix; |
|
|
860 | } |
|
|
861 | |
|
|
862 | if (cctx->flags & CC_TRACE_LINE) |
|
|
863 | { |
|
|
864 | dSP; |
|
|
865 | |
|
|
866 | PL_runops = RUNOPS_DEFAULT; |
|
|
867 | ENTER; |
|
|
868 | SAVETMPS; |
|
|
869 | EXTEND (SP, 3); |
|
|
870 | PL_runops = RUNOPS_DEFAULT; |
|
|
871 | PUSHMARK (SP); |
|
|
872 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
873 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
874 | PUTBACK; |
|
|
875 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0); |
|
|
876 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
877 | SPAGAIN; |
|
|
878 | FREETMPS; |
|
|
879 | LEAVE; |
|
|
880 | PL_runops = runops_trace; |
|
|
881 | } |
|
|
882 | } |
|
|
883 | } |
|
|
884 | } |
|
|
885 | } |
|
|
886 | |
|
|
887 | TAINT_NOT; |
|
|
888 | return 0; |
|
|
889 | } |
|
|
890 | |
|
|
891 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
892 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
893 | /* during execution of a perl program */ |
|
|
894 | static void NOINLINE |
|
|
895 | cctx_prepare (pTHX_ coro_cctx *cctx) |
|
|
896 | { |
543 | dSP; |
897 | dSP; |
544 | UNOP myop; |
898 | LOGOP myop; |
545 | SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE); |
|
|
546 | |
899 | |
547 | coro_init_stacks (aTHX); |
900 | PL_top_env = &PL_start_env; |
548 | /*PL_curcop = 0;*/ |
|
|
549 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
|
|
550 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
551 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
552 | |
901 | |
553 | SPAGAIN; |
902 | if (cctx->flags & CC_TRACE) |
|
|
903 | PL_runops = runops_trace; |
554 | |
904 | |
555 | Zero (&myop, 1, UNOP); |
905 | Zero (&myop, 1, LOGOP); |
556 | myop.op_next = Nullop; |
906 | myop.op_next = PL_op; |
557 | myop.op_flags = OPf_WANT_VOID; |
907 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
558 | |
908 | |
|
|
909 | PUSHMARK (SP); |
|
|
910 | EXTEND (SP, 2); |
|
|
911 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
|
|
912 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
|
|
913 | PUTBACK; |
559 | PL_op = (OP *)&myop; |
914 | PL_op = (OP *)&myop; |
560 | |
|
|
561 | PUSHMARK(SP); |
|
|
562 | XPUSHs (sub_init); |
|
|
563 | PUTBACK; |
|
|
564 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
915 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
565 | SPAGAIN; |
916 | SPAGAIN; |
566 | |
|
|
567 | ENTER; /* necessary e.g. for dounwind */ |
|
|
568 | } |
917 | } |
569 | |
918 | |
|
|
919 | /* |
|
|
920 | * this is a _very_ stripped down perl interpreter ;) |
|
|
921 | */ |
570 | static void |
922 | static void |
571 | transfer_tail () |
923 | cctx_run (void *arg) |
572 | { |
924 | { |
573 | if (coro_mortal) |
925 | dTHX; |
574 | { |
|
|
575 | SvREFCNT_dec (coro_mortal); |
|
|
576 | coro_mortal = 0; |
|
|
577 | } |
|
|
578 | |
926 | |
|
|
927 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
579 | UNLOCK; |
928 | UNLOCK; |
580 | } |
|
|
581 | |
929 | |
582 | static void |
930 | /* we now skip the entersub that lead to transfer() */ |
583 | coro_run (void *arg) |
931 | PL_op = PL_op->op_next; |
584 | { |
932 | |
|
|
933 | /* inject a fake subroutine call to cctx_init */ |
|
|
934 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
|
|
935 | |
|
|
936 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
|
|
937 | PL_restartop = PL_op; |
|
|
938 | perl_run (PL_curinterp); |
|
|
939 | |
585 | /* |
940 | /* |
586 | * this is a _very_ stripped down perl interpreter ;) |
941 | * If perl-run returns we assume exit() was being called or the coro |
|
|
942 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
943 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
944 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
945 | * coroutine as Coro has no such concept |
587 | */ |
946 | */ |
588 | dTHX; |
|
|
589 | |
|
|
590 | transfer_tail (); |
|
|
591 | |
|
|
592 | PL_top_env = &PL_start_env; |
947 | PL_top_env = main_top_env; |
593 | PL_restartop = PL_op->op_next; |
948 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
594 | /* somebody will hit me for both perl_run and PL_restart_top */ |
|
|
595 | perl_run (aTHX_ PERL_GET_CONTEXT); |
|
|
596 | |
|
|
597 | abort (); |
|
|
598 | } |
949 | } |
599 | |
950 | |
600 | static coro_stack * |
951 | static coro_cctx * |
601 | stack_new () |
952 | cctx_new () |
602 | { |
953 | { |
603 | coro_stack *stack; |
954 | coro_cctx *cctx; |
|
|
955 | void *stack_start; |
|
|
956 | size_t stack_size; |
604 | |
957 | |
|
|
958 | ++cctx_count; |
|
|
959 | |
605 | New (0, stack, 1, coro_stack); |
960 | Newz (0, cctx, 1, coro_cctx); |
606 | |
961 | |
607 | #if HAVE_MMAP |
962 | #if HAVE_MMAP |
608 | |
963 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
609 | stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */ |
964 | /* mmap supposedly does allocate-on-write for us */ |
610 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
965 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
611 | |
966 | |
612 | if (stack->sptr == (void *)-1) |
967 | if (cctx->sptr != (void *)-1) |
|
|
968 | { |
|
|
969 | # if CORO_STACKGUARD |
|
|
970 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
971 | # endif |
|
|
972 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
973 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
974 | cctx->flags |= CC_MAPPED; |
613 | { |
975 | } |
|
|
976 | else |
|
|
977 | #endif |
|
|
978 | { |
|
|
979 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
980 | New (0, cctx->sptr, coro_stacksize, long); |
|
|
981 | |
|
|
982 | if (!cctx->sptr) |
|
|
983 | { |
614 | fprintf (stderr, "FATAL: unable to mmap stack for coroutine\n"); |
984 | perror ("FATAL: unable to allocate stack for coroutine"); |
615 | _exit (EXIT_FAILURE); |
985 | _exit (EXIT_FAILURE); |
|
|
986 | } |
|
|
987 | |
|
|
988 | stack_start = cctx->sptr; |
|
|
989 | stack_size = cctx->ssize; |
|
|
990 | } |
|
|
991 | |
|
|
992 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
|
|
993 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
|
|
994 | |
|
|
995 | return cctx; |
|
|
996 | } |
|
|
997 | |
|
|
998 | static void |
|
|
999 | cctx_destroy (coro_cctx *cctx) |
|
|
1000 | { |
|
|
1001 | if (!cctx) |
|
|
1002 | return; |
|
|
1003 | |
|
|
1004 | --cctx_count; |
|
|
1005 | |
|
|
1006 | #if CORO_USE_VALGRIND |
|
|
1007 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
1008 | #endif |
|
|
1009 | |
|
|
1010 | #if HAVE_MMAP |
|
|
1011 | if (cctx->flags & CC_MAPPED) |
|
|
1012 | munmap (cctx->sptr, cctx->ssize); |
|
|
1013 | else |
|
|
1014 | #endif |
|
|
1015 | Safefree (cctx->sptr); |
|
|
1016 | |
|
|
1017 | Safefree (cctx); |
|
|
1018 | } |
|
|
1019 | |
|
|
1020 | /* wether this cctx should be destructed */ |
|
|
1021 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
|
|
1022 | |
|
|
1023 | static coro_cctx * |
|
|
1024 | cctx_get (pTHX) |
|
|
1025 | { |
|
|
1026 | while (expect_true (cctx_first)) |
616 | } |
1027 | { |
|
|
1028 | coro_cctx *cctx = cctx_first; |
|
|
1029 | cctx_first = cctx->next; |
|
|
1030 | --cctx_idle; |
617 | |
1031 | |
618 | mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
1032 | if (expect_true (!CCTX_EXPIRED (cctx))) |
|
|
1033 | return cctx; |
619 | |
1034 | |
|
|
1035 | cctx_destroy (cctx); |
|
|
1036 | } |
|
|
1037 | |
|
|
1038 | return cctx_new (); |
|
|
1039 | } |
|
|
1040 | |
|
|
1041 | static void |
|
|
1042 | cctx_put (coro_cctx *cctx) |
|
|
1043 | { |
|
|
1044 | /* free another cctx if overlimit */ |
|
|
1045 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
|
|
1046 | { |
|
|
1047 | coro_cctx *first = cctx_first; |
|
|
1048 | cctx_first = first->next; |
|
|
1049 | --cctx_idle; |
|
|
1050 | |
|
|
1051 | cctx_destroy (first); |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | ++cctx_idle; |
|
|
1055 | cctx->next = cctx_first; |
|
|
1056 | cctx_first = cctx; |
|
|
1057 | } |
|
|
1058 | |
|
|
1059 | /** coroutine switching *****************************************************/ |
|
|
1060 | |
|
|
1061 | static void |
|
|
1062 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1063 | { |
|
|
1064 | if (expect_true (prev != next)) |
|
|
1065 | { |
|
|
1066 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1067 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
1068 | |
|
|
1069 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1070 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1071 | |
|
|
1072 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1073 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
1074 | |
|
|
1075 | if ( |
|
|
1076 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
|
1077 | expect_false (PL_parser) |
620 | #else |
1078 | #else |
621 | |
1079 | expect_false (PL_lex_state != LEX_NOTPARSING) |
622 | stack->ssize = STACKSIZE * (long)sizeof (long); |
1080 | #endif |
623 | New (0, stack->sptr, STACKSIZE, long); |
1081 | ) |
624 | |
1082 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
625 | if (!stack->sptr) |
|
|
626 | { |
1083 | } |
627 | fprintf (stderr, "FATAL: unable to malloc stack for coroutine\n"); |
|
|
628 | _exit (EXIT_FAILURE); |
|
|
629 | } |
|
|
630 | |
|
|
631 | #endif |
|
|
632 | |
|
|
633 | coro_create (&stack->cctx, coro_run, 0, stack->sptr, stack->ssize); |
|
|
634 | |
|
|
635 | return stack; |
|
|
636 | } |
1084 | } |
637 | |
1085 | |
638 | static void |
1086 | /* always use the TRANSFER macro */ |
639 | stack_free (coro_stack *stack) |
1087 | static void NOINLINE |
640 | { |
|
|
641 | if (!stack || stack == main_stack) |
|
|
642 | return; |
|
|
643 | |
|
|
644 | #if HAVE_MMAP |
|
|
645 | munmap (stack->sptr, stack->ssize); |
|
|
646 | #else |
|
|
647 | Safefree (stack->sptr); |
|
|
648 | #endif |
|
|
649 | |
|
|
650 | Safefree (stack); |
|
|
651 | } |
|
|
652 | |
|
|
653 | static coro_stack *stack_first; |
|
|
654 | |
|
|
655 | static void |
|
|
656 | stack_get (struct coro *coro) |
|
|
657 | { |
|
|
658 | if (stack_first) |
|
|
659 | { |
|
|
660 | coro->stack = stack_first; |
|
|
661 | stack_first = stack_first->next; |
|
|
662 | } |
|
|
663 | else |
|
|
664 | coro->stack = stack_new (); |
|
|
665 | } |
|
|
666 | |
|
|
667 | static void |
|
|
668 | stack_put (coro_stack *stack) |
|
|
669 | { |
|
|
670 | stack->next = stack_first; |
|
|
671 | stack_first = stack; |
|
|
672 | } |
|
|
673 | |
|
|
674 | /* never call directly, always through the coro_state_transfer global variable */ |
|
|
675 | static void |
|
|
676 | transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) |
1088 | transfer (pTHX_ struct coro *prev, struct coro *next) |
677 | { |
1089 | { |
678 | dSTACKLEVEL; |
1090 | dSTACKLEVEL; |
679 | |
1091 | |
680 | /* sometimes transfer is only called to set idle_sp */ |
1092 | /* sometimes transfer is only called to set idle_sp */ |
681 | if (!prev->stack->idle_sp) |
1093 | if (expect_false (!next)) |
682 | prev->stack->idle_sp = stacklevel; |
1094 | { |
683 | |
1095 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
684 | LOCK; |
1096 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
685 | |
|
|
686 | if (prev != next) |
|
|
687 | { |
1097 | } |
688 | coro_stack *prev_stack = prev->stack; |
1098 | else if (expect_true (prev != next)) |
|
|
1099 | { |
|
|
1100 | coro_cctx *prev__cctx; |
689 | |
1101 | |
690 | /* possibly "free" the stack */ |
1102 | if (expect_false (prev->flags & CF_NEW)) |
691 | if (prev_stack->idle_sp == stacklevel) |
|
|
692 | { |
1103 | { |
693 | stack_put (prev_stack); |
1104 | /* create a new empty context */ |
694 | prev->stack = 0; |
1105 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
1106 | prev->flags &= ~CF_NEW; |
|
|
1107 | prev->flags |= CF_RUNNING; |
695 | } |
1108 | } |
696 | |
1109 | |
697 | if (next->mainstack) |
1110 | prev->flags &= ~CF_RUNNING; |
|
|
1111 | next->flags |= CF_RUNNING; |
|
|
1112 | |
|
|
1113 | LOCK; |
|
|
1114 | |
|
|
1115 | if (expect_false (next->flags & CF_NEW)) |
698 | { |
1116 | { |
699 | /* coroutine already started */ |
1117 | /* need to start coroutine */ |
700 | SAVE (prev, flags); |
1118 | next->flags &= ~CF_NEW; |
701 | LOAD (next); |
1119 | /* first get rid of the old state */ |
|
|
1120 | save_perl (aTHX_ prev); |
|
|
1121 | /* setup coroutine call */ |
|
|
1122 | coro_setup (aTHX_ next); |
702 | } |
1123 | } |
703 | else |
1124 | else |
704 | { |
1125 | { |
705 | /* need to start coroutine */ |
1126 | /* coroutine already started */ |
706 | /* first get rid of the old state */ |
1127 | save_perl (aTHX_ prev); |
707 | SAVE (prev, -1); |
1128 | load_perl (aTHX_ next); |
708 | /* setup coroutine call */ |
|
|
709 | setup_coro (next); |
|
|
710 | /* need to change stack from main_stack to real one */ |
|
|
711 | next->stack = 0; |
|
|
712 | } |
1129 | } |
713 | |
1130 | |
714 | if (!next->stack) |
1131 | prev__cctx = prev->cctx; |
715 | stack_get (next); |
|
|
716 | |
1132 | |
717 | if (prev_stack != next->stack) |
1133 | /* possibly "free" the cctx */ |
|
|
1134 | if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) |
|
|
1135 | { |
|
|
1136 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
|
|
1137 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
|
|
1138 | |
|
|
1139 | prev->cctx = 0; |
|
|
1140 | |
|
|
1141 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1142 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1143 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1144 | if (!next->cctx) |
|
|
1145 | next->cctx = cctx_get (aTHX); |
|
|
1146 | |
|
|
1147 | cctx_put (prev__cctx); |
|
|
1148 | } |
|
|
1149 | |
|
|
1150 | ++next->usecount; |
|
|
1151 | |
|
|
1152 | if (expect_true (!next->cctx)) |
|
|
1153 | next->cctx = cctx_get (aTHX); |
|
|
1154 | |
|
|
1155 | if (expect_false (prev__cctx != next->cctx)) |
|
|
1156 | { |
|
|
1157 | prev__cctx->top_env = PL_top_env; |
|
|
1158 | PL_top_env = next->cctx->top_env; |
718 | coro_transfer (&prev_stack->cctx, &next->stack->cctx); |
1159 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
719 | } |
1160 | } |
720 | |
1161 | |
721 | transfer_tail (); |
1162 | free_coro_mortal (aTHX); |
722 | } |
1163 | UNLOCK; |
723 | |
1164 | |
724 | /* use this function pointer to call the above function */ |
1165 | if (expect_false (prev->throw || next->throw)) |
725 | /* this is done to increase chances of the compiler not inlining the call */ |
1166 | { |
726 | void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl; |
1167 | struct coro *coro = SvSTATE (coro_current); |
727 | |
1168 | |
|
|
1169 | if (coro->throw) |
|
|
1170 | { |
|
|
1171 | SV *exception = coro->throw; |
|
|
1172 | coro->throw = 0; |
|
|
1173 | sv_setsv (ERRSV, exception); |
|
|
1174 | croak (0); |
|
|
1175 | } |
|
|
1176 | } |
|
|
1177 | } |
|
|
1178 | } |
|
|
1179 | |
|
|
1180 | struct transfer_args |
|
|
1181 | { |
|
|
1182 | struct coro *prev, *next; |
|
|
1183 | }; |
|
|
1184 | |
|
|
1185 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
|
|
1186 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
|
|
1187 | |
|
|
1188 | /** high level stuff ********************************************************/ |
|
|
1189 | |
728 | static void |
1190 | static int |
729 | coro_state_destroy (struct coro *coro) |
1191 | coro_state_destroy (pTHX_ struct coro *coro) |
730 | { |
1192 | { |
731 | if (coro->refcnt--) |
1193 | if (coro->flags & CF_DESTROYED) |
732 | return; |
1194 | return 0; |
|
|
1195 | |
|
|
1196 | coro->flags |= CF_DESTROYED; |
|
|
1197 | |
|
|
1198 | if (coro->flags & CF_READY) |
|
|
1199 | { |
|
|
1200 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1201 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1202 | LOCK; |
|
|
1203 | --coro_nready; |
|
|
1204 | UNLOCK; |
|
|
1205 | } |
|
|
1206 | else |
|
|
1207 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
733 | |
1208 | |
734 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1209 | if (coro->mainstack && coro->mainstack != main_mainstack) |
735 | { |
1210 | { |
736 | struct coro temp; |
1211 | struct coro temp; |
737 | |
1212 | |
738 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
1213 | if (coro->flags & CF_RUNNING) |
|
|
1214 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1215 | |
|
|
1216 | save_perl (aTHX_ &temp); |
739 | LOAD (aTHX_ coro); |
1217 | load_perl (aTHX_ coro); |
740 | |
1218 | |
741 | destroy_stacks (aTHX); |
1219 | coro_destroy (aTHX_ coro); |
742 | |
1220 | |
743 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
1221 | load_perl (aTHX_ &temp); |
744 | |
1222 | |
745 | coro->mainstack = 0; |
1223 | coro->slot = 0; |
746 | } |
1224 | } |
747 | |
1225 | |
748 | stack_free (coro->stack); |
1226 | cctx_destroy (coro->cctx); |
749 | SvREFCNT_dec (coro->args); |
1227 | SvREFCNT_dec (coro->args); |
750 | Safefree (coro); |
1228 | |
|
|
1229 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1230 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1231 | if (coro == coro_first) coro_first = coro->next; |
|
|
1232 | |
|
|
1233 | return 1; |
751 | } |
1234 | } |
752 | |
1235 | |
753 | static int |
1236 | static int |
754 | coro_state_clear (SV *sv, MAGIC *mg) |
1237 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
755 | { |
1238 | { |
756 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1239 | struct coro *coro = (struct coro *)mg->mg_ptr; |
757 | mg->mg_ptr = 0; |
1240 | mg->mg_ptr = 0; |
758 | |
1241 | |
|
|
1242 | coro->hv = 0; |
|
|
1243 | |
|
|
1244 | if (--coro->refcnt < 0) |
|
|
1245 | { |
759 | coro_state_destroy (coro); |
1246 | coro_state_destroy (aTHX_ coro); |
|
|
1247 | Safefree (coro); |
|
|
1248 | } |
760 | |
1249 | |
761 | return 0; |
1250 | return 0; |
762 | } |
1251 | } |
763 | |
1252 | |
764 | static int |
1253 | static int |
765 | coro_state_dup (MAGIC *mg, CLONE_PARAMS *params) |
1254 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
766 | { |
1255 | { |
767 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1256 | struct coro *coro = (struct coro *)mg->mg_ptr; |
768 | |
1257 | |
769 | ++coro->refcnt; |
1258 | ++coro->refcnt; |
770 | |
1259 | |
771 | return 0; |
1260 | return 0; |
772 | } |
1261 | } |
773 | |
1262 | |
774 | static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 }; |
1263 | static MGVTBL coro_state_vtbl = { |
|
|
1264 | 0, 0, 0, 0, |
|
|
1265 | coro_state_free, |
|
|
1266 | 0, |
|
|
1267 | #ifdef MGf_DUP |
|
|
1268 | coro_state_dup, |
|
|
1269 | #else |
|
|
1270 | # define MGf_DUP 0 |
|
|
1271 | #endif |
|
|
1272 | }; |
775 | |
1273 | |
776 | static struct coro * |
|
|
777 | SvSTATE (SV *coro) |
|
|
778 | { |
|
|
779 | HV *stash; |
|
|
780 | MAGIC *mg; |
|
|
781 | |
|
|
782 | if (SvROK (coro)) |
|
|
783 | coro = SvRV (coro); |
|
|
784 | |
|
|
785 | stash = SvSTASH (coro); |
|
|
786 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
787 | { |
|
|
788 | /* very slow, but rare, check */ |
|
|
789 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
790 | croak ("Coro::State object required"); |
|
|
791 | } |
|
|
792 | |
|
|
793 | mg = SvMAGIC (coro); |
|
|
794 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
795 | return (struct coro *)mg->mg_ptr; |
|
|
796 | } |
|
|
797 | |
|
|
798 | static void |
1274 | static void |
|
|
1275 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
|
|
1276 | { |
|
|
1277 | ta->prev = SvSTATE (prev_sv); |
|
|
1278 | ta->next = SvSTATE (next_sv); |
|
|
1279 | TRANSFER_CHECK (*ta); |
|
|
1280 | } |
|
|
1281 | |
|
|
1282 | static void |
799 | api_transfer (pTHX_ SV *prev, SV *next, int flags) |
1283 | api_transfer (SV *prev_sv, SV *next_sv) |
800 | { |
1284 | { |
801 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
1285 | dTHX; |
|
|
1286 | struct transfer_args ta; |
|
|
1287 | |
|
|
1288 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
|
|
1289 | TRANSFER (ta); |
802 | } |
1290 | } |
803 | |
1291 | |
804 | /** Coro ********************************************************************/ |
1292 | /** Coro ********************************************************************/ |
805 | |
1293 | |
806 | #define PRIO_MAX 3 |
|
|
807 | #define PRIO_HIGH 1 |
|
|
808 | #define PRIO_NORMAL 0 |
|
|
809 | #define PRIO_LOW -1 |
|
|
810 | #define PRIO_IDLE -3 |
|
|
811 | #define PRIO_MIN -4 |
|
|
812 | |
|
|
813 | /* for Coro.pm */ |
|
|
814 | static GV *coro_current, *coro_idle; |
|
|
815 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
816 | static int coro_nready; |
|
|
817 | |
|
|
818 | static void |
1294 | static void |
819 | coro_enq (pTHX_ SV *sv) |
1295 | coro_enq (pTHX_ SV *coro_sv) |
820 | { |
1296 | { |
821 | int prio; |
|
|
822 | |
|
|
823 | if (SvTYPE (sv) != SVt_PVHV) |
|
|
824 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
825 | |
|
|
826 | prio = SvSTATE (sv)->prio; |
|
|
827 | |
|
|
828 | av_push (coro_ready [prio - PRIO_MIN], sv); |
1297 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
829 | coro_nready++; |
|
|
830 | } |
1298 | } |
831 | |
1299 | |
832 | static SV * |
1300 | static SV * |
833 | coro_deq (pTHX_ int min_prio) |
1301 | coro_deq (pTHX_ int min_prio) |
834 | { |
1302 | { |
… | |
… | |
838 | if (min_prio < 0) |
1306 | if (min_prio < 0) |
839 | min_prio = 0; |
1307 | min_prio = 0; |
840 | |
1308 | |
841 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1309 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
842 | if (AvFILLp (coro_ready [prio]) >= 0) |
1310 | if (AvFILLp (coro_ready [prio]) >= 0) |
843 | { |
|
|
844 | coro_nready--; |
|
|
845 | return av_shift (coro_ready [prio]); |
1311 | return av_shift (coro_ready [prio]); |
846 | } |
|
|
847 | |
1312 | |
848 | return 0; |
1313 | return 0; |
849 | } |
1314 | } |
850 | |
1315 | |
851 | static void |
1316 | static int |
852 | api_ready (SV *coro) |
1317 | api_ready (SV *coro_sv) |
853 | { |
1318 | { |
854 | dTHX; |
1319 | dTHX; |
|
|
1320 | struct coro *coro; |
855 | |
1321 | |
856 | if (SvROK (coro)) |
1322 | if (SvROK (coro_sv)) |
857 | coro = SvRV (coro); |
1323 | coro_sv = SvRV (coro_sv); |
|
|
1324 | |
|
|
1325 | coro = SvSTATE (coro_sv); |
|
|
1326 | |
|
|
1327 | if (coro->flags & CF_READY) |
|
|
1328 | return 0; |
|
|
1329 | |
|
|
1330 | coro->flags |= CF_READY; |
858 | |
1331 | |
859 | LOCK; |
1332 | LOCK; |
860 | coro_enq (aTHX_ SvREFCNT_inc (coro)); |
1333 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1334 | ++coro_nready; |
861 | UNLOCK; |
1335 | UNLOCK; |
|
|
1336 | |
|
|
1337 | return 1; |
|
|
1338 | } |
|
|
1339 | |
|
|
1340 | static int |
|
|
1341 | api_is_ready (SV *coro_sv) |
|
|
1342 | { |
|
|
1343 | dTHX; |
|
|
1344 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
|
|
1345 | } |
|
|
1346 | |
|
|
1347 | static void |
|
|
1348 | prepare_schedule (pTHX_ struct transfer_args *ta) |
|
|
1349 | { |
|
|
1350 | SV *prev_sv, *next_sv; |
|
|
1351 | |
|
|
1352 | for (;;) |
|
|
1353 | { |
|
|
1354 | LOCK; |
|
|
1355 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1356 | |
|
|
1357 | /* nothing to schedule: call the idle handler */ |
|
|
1358 | if (expect_false (!next_sv)) |
|
|
1359 | { |
|
|
1360 | dSP; |
|
|
1361 | UNLOCK; |
|
|
1362 | |
|
|
1363 | ENTER; |
|
|
1364 | SAVETMPS; |
|
|
1365 | |
|
|
1366 | PUSHMARK (SP); |
|
|
1367 | PUTBACK; |
|
|
1368 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1369 | |
|
|
1370 | FREETMPS; |
|
|
1371 | LEAVE; |
|
|
1372 | continue; |
|
|
1373 | } |
|
|
1374 | |
|
|
1375 | ta->next = SvSTATE (next_sv); |
|
|
1376 | |
|
|
1377 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1378 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1379 | { |
|
|
1380 | UNLOCK; |
|
|
1381 | SvREFCNT_dec (next_sv); |
|
|
1382 | /* coro_nready is already taken care of by destroy */ |
|
|
1383 | continue; |
|
|
1384 | } |
|
|
1385 | |
|
|
1386 | --coro_nready; |
|
|
1387 | UNLOCK; |
|
|
1388 | break; |
|
|
1389 | } |
|
|
1390 | |
|
|
1391 | /* free this only after the transfer */ |
|
|
1392 | prev_sv = SvRV (coro_current); |
|
|
1393 | ta->prev = SvSTATE (prev_sv); |
|
|
1394 | TRANSFER_CHECK (*ta); |
|
|
1395 | assert (ta->next->flags & CF_READY); |
|
|
1396 | ta->next->flags &= ~CF_READY; |
|
|
1397 | SvRV_set (coro_current, next_sv); |
|
|
1398 | |
|
|
1399 | LOCK; |
|
|
1400 | free_coro_mortal (aTHX); |
|
|
1401 | coro_mortal = prev_sv; |
|
|
1402 | UNLOCK; |
|
|
1403 | } |
|
|
1404 | |
|
|
1405 | static void |
|
|
1406 | prepare_cede (pTHX_ struct transfer_args *ta) |
|
|
1407 | { |
|
|
1408 | api_ready (coro_current); |
|
|
1409 | prepare_schedule (aTHX_ ta); |
|
|
1410 | } |
|
|
1411 | |
|
|
1412 | static int |
|
|
1413 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1414 | { |
|
|
1415 | if (coro_nready) |
|
|
1416 | { |
|
|
1417 | SV *prev = SvRV (coro_current); |
|
|
1418 | prepare_schedule (aTHX_ ta); |
|
|
1419 | api_ready (prev); |
|
|
1420 | return 1; |
|
|
1421 | } |
|
|
1422 | else |
|
|
1423 | return 0; |
862 | } |
1424 | } |
863 | |
1425 | |
864 | static void |
1426 | static void |
865 | api_schedule (void) |
1427 | api_schedule (void) |
866 | { |
1428 | { |
867 | dTHX; |
1429 | dTHX; |
|
|
1430 | struct transfer_args ta; |
868 | |
1431 | |
869 | SV *prev, *next; |
1432 | prepare_schedule (aTHX_ &ta); |
870 | SV *current = GvSV (coro_current); |
1433 | TRANSFER (ta); |
871 | |
|
|
872 | for (;;) |
|
|
873 | { |
|
|
874 | LOCK; |
|
|
875 | |
|
|
876 | next = coro_deq (aTHX_ PRIO_MIN); |
|
|
877 | |
|
|
878 | if (next) |
|
|
879 | break; |
|
|
880 | |
|
|
881 | UNLOCK; |
|
|
882 | |
|
|
883 | { |
|
|
884 | dSP; |
|
|
885 | |
|
|
886 | ENTER; |
|
|
887 | SAVETMPS; |
|
|
888 | |
|
|
889 | PUSHMARK (SP); |
|
|
890 | PUTBACK; |
|
|
891 | call_sv (GvSV (coro_idle), G_DISCARD); |
|
|
892 | |
|
|
893 | FREETMPS; |
|
|
894 | LEAVE; |
|
|
895 | } |
|
|
896 | } |
|
|
897 | |
|
|
898 | prev = SvRV (current); |
|
|
899 | SvRV (current) = next; |
|
|
900 | |
|
|
901 | /* free this only after the transfer */ |
|
|
902 | coro_mortal = prev; |
|
|
903 | |
|
|
904 | UNLOCK; |
|
|
905 | |
|
|
906 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), TRANSFER_SAVE_ALL); |
|
|
907 | } |
1434 | } |
908 | |
1435 | |
909 | static int coro_cede_self; |
|
|
910 | |
|
|
911 | static void |
1436 | static int |
912 | api_cede (void) |
1437 | api_cede (void) |
913 | { |
1438 | { |
914 | dTHX; |
1439 | dTHX; |
915 | SV *current = SvREFCNT_inc (SvRV (GvSV (coro_current))); |
1440 | struct transfer_args ta; |
916 | |
1441 | |
917 | LOCK; |
1442 | prepare_cede (aTHX_ &ta); |
918 | |
1443 | |
919 | if (coro_cede_self) |
1444 | if (expect_true (ta.prev != ta.next)) |
920 | { |
1445 | { |
921 | AV *runqueue = coro_ready [PRIO_MAX - PRIO_MIN]; |
1446 | TRANSFER (ta); |
922 | av_unshift (runqueue, 1); |
1447 | return 1; |
923 | av_store (runqueue, 0, current); |
|
|
924 | coro_nready++; |
|
|
925 | coro_cede_self = 0; |
|
|
926 | } |
1448 | } |
927 | else |
1449 | else |
928 | coro_enq (aTHX_ current); |
1450 | return 0; |
929 | |
|
|
930 | UNLOCK; |
|
|
931 | |
|
|
932 | api_schedule (); |
|
|
933 | } |
1451 | } |
934 | |
1452 | |
|
|
1453 | static int |
|
|
1454 | api_cede_notself (void) |
|
|
1455 | { |
|
|
1456 | dTHX; |
|
|
1457 | struct transfer_args ta; |
|
|
1458 | |
|
|
1459 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1460 | { |
|
|
1461 | TRANSFER (ta); |
|
|
1462 | return 1; |
|
|
1463 | } |
|
|
1464 | else |
|
|
1465 | return 0; |
|
|
1466 | } |
|
|
1467 | |
|
|
1468 | static void |
|
|
1469 | api_trace (SV *coro_sv, int flags) |
|
|
1470 | { |
|
|
1471 | dTHX; |
|
|
1472 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1473 | |
|
|
1474 | if (flags & CC_TRACE) |
|
|
1475 | { |
|
|
1476 | if (!coro->cctx) |
|
|
1477 | coro->cctx = cctx_new (); |
|
|
1478 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1479 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1480 | |
|
|
1481 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1482 | } |
|
|
1483 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1484 | { |
|
|
1485 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1486 | |
|
|
1487 | if (coro->flags & CF_RUNNING) |
|
|
1488 | PL_runops = RUNOPS_DEFAULT; |
|
|
1489 | else |
|
|
1490 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1491 | } |
|
|
1492 | } |
|
|
1493 | |
935 | MODULE = Coro::State PACKAGE = Coro::State |
1494 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
936 | |
1495 | |
937 | PROTOTYPES: DISABLE |
1496 | PROTOTYPES: DISABLE |
938 | |
1497 | |
939 | BOOT: |
1498 | BOOT: |
940 | { |
1499 | { |
941 | #ifdef USE_ITHREADS |
1500 | #ifdef USE_ITHREADS |
942 | MUTEX_INIT (&coro_mutex); |
1501 | MUTEX_INIT (&coro_mutex); |
943 | #endif |
1502 | #endif |
944 | BOOT_PAGESIZE; |
1503 | BOOT_PAGESIZE; |
945 | |
1504 | |
|
|
1505 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1506 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1507 | |
|
|
1508 | hv_sig = coro_get_hv ("SIG", TRUE); |
|
|
1509 | sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE); |
|
|
1510 | sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE); |
|
|
1511 | |
|
|
1512 | if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); |
|
|
1513 | if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); |
|
|
1514 | |
946 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1515 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
947 | |
1516 | |
948 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1517 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
949 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1518 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
950 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1519 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
|
|
1520 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
951 | |
1521 | |
952 | main_mainstack = PL_mainstack; |
1522 | main_mainstack = PL_mainstack; |
|
|
1523 | main_top_env = PL_top_env; |
|
|
1524 | |
|
|
1525 | while (main_top_env->je_prev) |
|
|
1526 | main_top_env = main_top_env->je_prev; |
953 | |
1527 | |
954 | coroapi.ver = CORO_API_VERSION; |
1528 | coroapi.ver = CORO_API_VERSION; |
955 | coroapi.transfer = api_transfer; |
1529 | coroapi.transfer = api_transfer; |
956 | |
|
|
957 | Newz (0, main_stack, 1, coro_stack); |
|
|
958 | main_stack->idle_sp = (void *)-1; |
|
|
959 | |
1530 | |
960 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1531 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
961 | } |
1532 | } |
962 | |
1533 | |
963 | SV * |
1534 | SV * |
… | |
… | |
967 | struct coro *coro; |
1538 | struct coro *coro; |
968 | HV *hv; |
1539 | HV *hv; |
969 | int i; |
1540 | int i; |
970 | |
1541 | |
971 | Newz (0, coro, 1, struct coro); |
1542 | Newz (0, coro, 1, struct coro); |
972 | coro->args = newAV (); |
1543 | coro->args = newAV (); |
|
|
1544 | coro->flags = CF_NEW; |
973 | |
1545 | |
|
|
1546 | if (coro_first) coro_first->prev = coro; |
|
|
1547 | coro->next = coro_first; |
|
|
1548 | coro_first = coro; |
|
|
1549 | |
974 | hv = newHV (); |
1550 | coro->hv = hv = newHV (); |
975 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1551 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
976 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1552 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
977 | |
1553 | |
978 | av_push (coro->args, newSVsv (RETVAL)); |
1554 | av_extend (coro->args, items - 1); |
979 | for (i = 1; i < items; i++) |
1555 | for (i = 1; i < items; i++) |
980 | av_push (coro->args, newSVsv (ST (i))); |
1556 | av_push (coro->args, newSVsv (ST (i))); |
981 | |
|
|
982 | coro->stack = main_stack; |
|
|
983 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
|
|
984 | /*coro->stack = 0;*/ |
|
|
985 | } |
1557 | } |
986 | OUTPUT: |
1558 | OUTPUT: |
987 | RETVAL |
1559 | RETVAL |
988 | |
1560 | |
|
|
1561 | # these not obviously related functions are all rolled into the same xs |
|
|
1562 | # function to increase chances that they all will call transfer with the same |
|
|
1563 | # stack offset |
989 | void |
1564 | void |
990 | transfer (prev, next, flags) |
1565 | _set_stacklevel (...) |
991 | SV *prev |
1566 | ALIAS: |
992 | SV *next |
1567 | Coro::State::transfer = 1 |
993 | int flags |
1568 | Coro::schedule = 2 |
|
|
1569 | Coro::cede = 3 |
|
|
1570 | Coro::cede_notself = 4 |
994 | CODE: |
1571 | CODE: |
995 | PUTBACK; |
|
|
996 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
|
|
997 | SPAGAIN; |
|
|
998 | |
|
|
999 | int |
|
|
1000 | prio (Coro::State coro, int newprio = 0) |
|
|
1001 | ALIAS: |
|
|
1002 | nice = 1 |
|
|
1003 | CODE: |
|
|
1004 | { |
1572 | { |
1005 | RETVAL = coro->prio; |
1573 | struct transfer_args ta; |
1006 | |
1574 | |
1007 | if (items > 1) |
1575 | switch (ix) |
1008 | { |
1576 | { |
|
|
1577 | case 0: |
|
|
1578 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1579 | ta.next = 0; |
|
|
1580 | break; |
|
|
1581 | |
|
|
1582 | case 1: |
1009 | if (ix) |
1583 | if (items != 2) |
1010 | newprio += coro->prio; |
1584 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1011 | |
1585 | |
1012 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1586 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1013 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1587 | break; |
1014 | |
1588 | |
1015 | coro->prio = newprio; |
1589 | case 2: |
|
|
1590 | prepare_schedule (aTHX_ &ta); |
|
|
1591 | break; |
|
|
1592 | |
|
|
1593 | case 3: |
|
|
1594 | prepare_cede (aTHX_ &ta); |
|
|
1595 | break; |
|
|
1596 | |
|
|
1597 | case 4: |
|
|
1598 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1599 | XSRETURN_EMPTY; |
|
|
1600 | |
|
|
1601 | break; |
1016 | } |
1602 | } |
1017 | } |
|
|
1018 | |
1603 | |
1019 | void |
1604 | BARRIER; |
1020 | _clear_idle_sp (Coro::State self) |
1605 | TRANSFER (ta); |
|
|
1606 | |
|
|
1607 | if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev)) |
|
|
1608 | XSRETURN_YES; |
|
|
1609 | } |
|
|
1610 | |
|
|
1611 | bool |
|
|
1612 | _destroy (SV *coro_sv) |
1021 | CODE: |
1613 | CODE: |
1022 | self->stack->idle_sp = 0; |
1614 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1023 | |
1615 | OUTPUT: |
1024 | void |
1616 | RETVAL |
1025 | _clone_state_from (SV *dst, SV *src) |
|
|
1026 | CODE: |
|
|
1027 | { |
|
|
1028 | struct coro *coro_src = SvSTATE (src); |
|
|
1029 | |
|
|
1030 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1031 | |
|
|
1032 | ++coro_src->refcnt; |
|
|
1033 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1034 | } |
|
|
1035 | |
1617 | |
1036 | void |
1618 | void |
1037 | _exit (code) |
1619 | _exit (code) |
1038 | int code |
1620 | int code |
1039 | PROTOTYPE: $ |
1621 | PROTOTYPE: $ |
1040 | CODE: |
1622 | CODE: |
1041 | _exit (code); |
1623 | _exit (code); |
1042 | |
1624 | |
1043 | MODULE = Coro::State PACKAGE = Coro::Cont |
1625 | int |
|
|
1626 | cctx_stacksize (int new_stacksize = 0) |
|
|
1627 | CODE: |
|
|
1628 | RETVAL = coro_stacksize; |
|
|
1629 | if (new_stacksize) |
|
|
1630 | coro_stacksize = new_stacksize; |
|
|
1631 | OUTPUT: |
|
|
1632 | RETVAL |
|
|
1633 | |
|
|
1634 | int |
|
|
1635 | cctx_count () |
|
|
1636 | CODE: |
|
|
1637 | RETVAL = cctx_count; |
|
|
1638 | OUTPUT: |
|
|
1639 | RETVAL |
|
|
1640 | |
|
|
1641 | int |
|
|
1642 | cctx_idle () |
|
|
1643 | CODE: |
|
|
1644 | RETVAL = cctx_idle; |
|
|
1645 | OUTPUT: |
|
|
1646 | RETVAL |
1044 | |
1647 | |
1045 | void |
1648 | void |
1046 | yield (...) |
1649 | list () |
1047 | PROTOTYPE: @ |
1650 | PPCODE: |
|
|
1651 | { |
|
|
1652 | struct coro *coro; |
|
|
1653 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1654 | if (coro->hv) |
|
|
1655 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1656 | } |
|
|
1657 | |
|
|
1658 | void |
|
|
1659 | call (Coro::State coro, SV *coderef) |
|
|
1660 | ALIAS: |
|
|
1661 | eval = 1 |
|
|
1662 | CODE: |
|
|
1663 | { |
|
|
1664 | if (coro->mainstack) |
|
|
1665 | { |
|
|
1666 | struct coro temp; |
|
|
1667 | |
|
|
1668 | if (!(coro->flags & CF_RUNNING)) |
|
|
1669 | { |
|
|
1670 | save_perl (aTHX_ &temp); |
|
|
1671 | load_perl (aTHX_ coro); |
|
|
1672 | } |
|
|
1673 | |
|
|
1674 | { |
|
|
1675 | dSP; |
|
|
1676 | ENTER; |
|
|
1677 | SAVETMPS; |
|
|
1678 | PUSHMARK (SP); |
|
|
1679 | PUTBACK; |
|
|
1680 | |
|
|
1681 | if (ix) |
|
|
1682 | eval_sv (coderef, 0); |
|
|
1683 | else |
|
|
1684 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1685 | |
|
|
1686 | SPAGAIN; |
|
|
1687 | FREETMPS; |
|
|
1688 | LEAVE; |
|
|
1689 | PUTBACK; |
|
|
1690 | } |
|
|
1691 | |
|
|
1692 | if (!(coro->flags & CF_RUNNING)) |
|
|
1693 | { |
|
|
1694 | save_perl (aTHX_ coro); |
|
|
1695 | load_perl (aTHX_ &temp); |
|
|
1696 | } |
|
|
1697 | } |
|
|
1698 | } |
|
|
1699 | |
|
|
1700 | SV * |
|
|
1701 | is_ready (Coro::State coro) |
|
|
1702 | PROTOTYPE: $ |
|
|
1703 | ALIAS: |
|
|
1704 | is_ready = CF_READY |
|
|
1705 | is_running = CF_RUNNING |
|
|
1706 | is_new = CF_NEW |
|
|
1707 | is_destroyed = CF_DESTROYED |
|
|
1708 | CODE: |
|
|
1709 | RETVAL = boolSV (coro->flags & ix); |
|
|
1710 | OUTPUT: |
|
|
1711 | RETVAL |
|
|
1712 | |
|
|
1713 | void |
|
|
1714 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
1715 | |
|
|
1716 | SV * |
|
|
1717 | has_stack (Coro::State coro) |
|
|
1718 | PROTOTYPE: $ |
|
|
1719 | CODE: |
|
|
1720 | RETVAL = boolSV (!!coro->cctx); |
|
|
1721 | OUTPUT: |
|
|
1722 | RETVAL |
|
|
1723 | |
|
|
1724 | int |
|
|
1725 | is_traced (Coro::State coro) |
|
|
1726 | PROTOTYPE: $ |
|
|
1727 | CODE: |
|
|
1728 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
1729 | OUTPUT: |
|
|
1730 | RETVAL |
|
|
1731 | |
|
|
1732 | IV |
|
|
1733 | rss (Coro::State coro) |
|
|
1734 | PROTOTYPE: $ |
|
|
1735 | ALIAS: |
|
|
1736 | usecount = 1 |
1048 | CODE: |
1737 | CODE: |
1049 | { |
1738 | switch (ix) |
1050 | SV *yieldstack; |
1739 | { |
1051 | SV *sv; |
1740 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
1052 | AV *defav = GvAV (PL_defgv); |
1741 | case 1: RETVAL = coro->usecount; break; |
1053 | struct coro *prev, *next; |
|
|
1054 | |
|
|
1055 | yieldstack = *hv_fetch ( |
|
|
1056 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1057 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1058 | 0 |
1742 | } |
1059 | ); |
1743 | OUTPUT: |
|
|
1744 | RETVAL |
1060 | |
1745 | |
1061 | /* set up @_ -- ugly */ |
|
|
1062 | av_clear (defav); |
|
|
1063 | av_fill (defav, items - 1); |
|
|
1064 | while (items--) |
|
|
1065 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1066 | |
|
|
1067 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1068 | prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
|
|
1069 | next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
|
|
1070 | SvREFCNT_dec (sv); |
|
|
1071 | |
|
|
1072 | coro_state_transfer (aTHX_ prev, next, 0); |
|
|
1073 | } |
|
|
1074 | |
1746 | |
1075 | MODULE = Coro::State PACKAGE = Coro |
1747 | MODULE = Coro::State PACKAGE = Coro |
1076 | |
1748 | |
1077 | BOOT: |
1749 | BOOT: |
1078 | { |
1750 | { |
1079 | int i; |
1751 | int i; |
1080 | |
1752 | |
|
|
1753 | sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1754 | sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1755 | av_async_pool = coro_get_av ("Coro::async_pool", TRUE); |
|
|
1756 | |
|
|
1757 | coro_current = coro_get_sv ("Coro::current", FALSE); |
|
|
1758 | SvREADONLY_on (coro_current); |
|
|
1759 | |
1081 | coro_stash = gv_stashpv ("Coro", TRUE); |
1760 | coro_stash = gv_stashpv ("Coro", TRUE); |
1082 | |
1761 | |
1083 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1762 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1084 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1763 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1085 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1764 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1086 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1765 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1087 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1766 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1088 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1767 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1089 | |
1768 | |
1090 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
|
|
1091 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
|
|
1092 | |
|
|
1093 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1769 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1094 | coro_ready[i] = newAV (); |
1770 | coro_ready[i] = newAV (); |
1095 | |
1771 | |
1096 | { |
1772 | { |
1097 | SV *sv = perl_get_sv("Coro::API", 1); |
1773 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
|
|
1774 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
1098 | |
1775 | |
1099 | coroapi.schedule = api_schedule; |
1776 | coroapi.schedule = api_schedule; |
1100 | coroapi.cede = api_cede; |
1777 | coroapi.cede = api_cede; |
|
|
1778 | coroapi.cede_notself = api_cede_notself; |
1101 | coroapi.ready = api_ready; |
1779 | coroapi.ready = api_ready; |
|
|
1780 | coroapi.is_ready = api_is_ready; |
1102 | coroapi.nready = &coro_nready; |
1781 | coroapi.nready = &coro_nready; |
1103 | coroapi.current = coro_current; |
1782 | coroapi.current = coro_current; |
1104 | |
1783 | |
1105 | GCoroAPI = &coroapi; |
1784 | GCoroAPI = &coroapi; |
1106 | sv_setiv (sv, (IV)&coroapi); |
1785 | sv_setiv (sv, (IV)&coroapi); |
1107 | SvREADONLY_on (sv); |
1786 | SvREADONLY_on (sv); |
1108 | } |
1787 | } |
1109 | } |
1788 | } |
1110 | |
1789 | |
1111 | void |
1790 | void |
|
|
1791 | _set_current (SV *current) |
|
|
1792 | PROTOTYPE: $ |
|
|
1793 | CODE: |
|
|
1794 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
1795 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
|
|
1796 | |
|
|
1797 | int |
|
|
1798 | prio (Coro::State coro, int newprio = 0) |
|
|
1799 | ALIAS: |
|
|
1800 | nice = 1 |
|
|
1801 | CODE: |
|
|
1802 | { |
|
|
1803 | RETVAL = coro->prio; |
|
|
1804 | |
|
|
1805 | if (items > 1) |
|
|
1806 | { |
|
|
1807 | if (ix) |
|
|
1808 | newprio = coro->prio - newprio; |
|
|
1809 | |
|
|
1810 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
|
|
1811 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
|
|
1812 | |
|
|
1813 | coro->prio = newprio; |
|
|
1814 | } |
|
|
1815 | } |
|
|
1816 | OUTPUT: |
|
|
1817 | RETVAL |
|
|
1818 | |
|
|
1819 | SV * |
1112 | ready (SV *self) |
1820 | ready (SV *self) |
1113 | PROTOTYPE: $ |
1821 | PROTOTYPE: $ |
1114 | CODE: |
1822 | CODE: |
1115 | api_ready (self); |
1823 | RETVAL = boolSV (api_ready (self)); |
|
|
1824 | OUTPUT: |
|
|
1825 | RETVAL |
1116 | |
1826 | |
1117 | int |
1827 | int |
1118 | nready (...) |
1828 | nready (...) |
1119 | PROTOTYPE: |
1829 | PROTOTYPE: |
1120 | CODE: |
1830 | CODE: |
1121 | RETVAL = coro_nready; |
1831 | RETVAL = coro_nready; |
1122 | OUTPUT: |
1832 | OUTPUT: |
1123 | RETVAL |
1833 | RETVAL |
1124 | |
1834 | |
1125 | void |
1835 | void |
1126 | schedule (...) |
1836 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
1127 | PROTOTYPE: |
1837 | PROTOTYPE: $;$ |
|
|
1838 | CODE: |
|
|
1839 | SvREFCNT_dec (self->throw); |
|
|
1840 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1841 | |
|
|
1842 | # for async_pool speedup |
|
|
1843 | void |
|
|
1844 | _pool_1 (SV *cb) |
1128 | CODE: |
1845 | CODE: |
1129 | api_schedule (); |
1846 | { |
|
|
1847 | struct coro *coro = SvSTATE (coro_current); |
|
|
1848 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1849 | AV *defav = GvAV (PL_defgv); |
|
|
1850 | SV *invoke = hv_delete (hv, strpair ("_invoke"), 0); |
|
|
1851 | AV *invoke_av; |
|
|
1852 | int i, len; |
|
|
1853 | |
|
|
1854 | if (!invoke) |
|
|
1855 | croak ("\3async_pool terminate\2\n"); |
|
|
1856 | |
|
|
1857 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1858 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
|
|
1859 | |
|
|
1860 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1861 | newSVpvn (strpair ("[async_pool]")), 0); |
|
|
1862 | |
|
|
1863 | invoke_av = (AV *)SvRV (invoke); |
|
|
1864 | len = av_len (invoke_av); |
|
|
1865 | |
|
|
1866 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1867 | |
|
|
1868 | if (len > 0) |
|
|
1869 | { |
|
|
1870 | av_fill (defav, len - 1); |
|
|
1871 | for (i = 0; i < len; ++i) |
|
|
1872 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1873 | } |
|
|
1874 | |
|
|
1875 | SvREFCNT_dec (invoke); |
|
|
1876 | } |
1130 | |
1877 | |
1131 | void |
1878 | void |
1132 | _set_cede_self () |
1879 | _pool_2 (SV *cb) |
1133 | CODE: |
1880 | CODE: |
1134 | coro_cede_self = 1; |
1881 | { |
|
|
1882 | struct coro *coro = SvSTATE (coro_current); |
1135 | |
1883 | |
1136 | void |
1884 | sv_setsv (cb, &PL_sv_undef); |
1137 | cede (...) |
1885 | |
1138 | PROTOTYPE: |
1886 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
1139 | CODE: |
1887 | coro->saved_deffh = 0; |
1140 | api_cede (); |
1888 | |
|
|
1889 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1890 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1891 | croak ("\3async_pool terminate\2\n"); |
|
|
1892 | |
|
|
1893 | av_clear (GvAV (PL_defgv)); |
|
|
1894 | hv_store ((HV *)SvRV (coro_current), strpair ("desc"), |
|
|
1895 | newSVpvn (strpair ("[async_pool idle]")), 0); |
|
|
1896 | |
|
|
1897 | coro->prio = 0; |
|
|
1898 | |
|
|
1899 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1900 | api_trace (coro_current, 0); |
|
|
1901 | |
|
|
1902 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1903 | } |
|
|
1904 | |
1141 | |
1905 | |
1142 | MODULE = Coro::State PACKAGE = Coro::AIO |
1906 | MODULE = Coro::State PACKAGE = Coro::AIO |
1143 | |
1907 | |
1144 | SV * |
1908 | SV * |
1145 | _get_state () |
1909 | _get_state () |
1146 | CODE: |
1910 | CODE: |
1147 | { |
1911 | { |
1148 | struct { |
1912 | struct io_state *data; |
1149 | int errorno; |
|
|
1150 | int laststype; |
|
|
1151 | int laststatval; |
|
|
1152 | Stat_t statcache; |
|
|
1153 | } data; |
|
|
1154 | |
1913 | |
|
|
1914 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1915 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1916 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1917 | SvPOK_only (RETVAL); |
|
|
1918 | |
1155 | data.errorno = errno; |
1919 | data->errorno = errno; |
1156 | data.laststype = PL_laststype; |
1920 | data->laststype = PL_laststype; |
1157 | data.laststatval = PL_laststatval; |
1921 | data->laststatval = PL_laststatval; |
1158 | data.statcache = PL_statcache; |
1922 | data->statcache = PL_statcache; |
1159 | |
|
|
1160 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1161 | } |
1923 | } |
1162 | OUTPUT: |
1924 | OUTPUT: |
1163 | RETVAL |
1925 | RETVAL |
1164 | |
1926 | |
1165 | void |
1927 | void |
1166 | _set_state (char *data_) |
1928 | _set_state (char *data_) |
1167 | PROTOTYPE: $ |
1929 | PROTOTYPE: $ |
1168 | CODE: |
1930 | CODE: |
1169 | { |
1931 | { |
1170 | struct { |
1932 | struct io_state *data = (void *)data_; |
1171 | int errorno; |
|
|
1172 | int laststype; |
|
|
1173 | int laststatval; |
|
|
1174 | Stat_t statcache; |
|
|
1175 | } *data = (void *)data_; |
|
|
1176 | |
1933 | |
1177 | errno = data->errorno; |
1934 | errno = data->errorno; |
1178 | PL_laststype = data->laststype; |
1935 | PL_laststype = data->laststype; |
1179 | PL_laststatval = data->laststatval; |
1936 | PL_laststatval = data->laststatval; |
1180 | PL_statcache = data->statcache; |
1937 | PL_statcache = data->statcache; |
1181 | } |
1938 | } |
|
|
1939 | |