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1 | /* this works around a bug in mingw32 providing a non-working setjmp */ |
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2 | #define USE_NO_MINGW_SETJMP_TWO_ARGS |
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3 | |
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4 | #define NDEBUG 1 |
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5 | |
1 | #include "libcoro/coro.c" |
6 | #include "libcoro/coro.c" |
2 | |
7 | |
3 | #define PERL_NO_GET_CONTEXT |
8 | #define PERL_NO_GET_CONTEXT |
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9 | #define PERL_EXT |
4 | |
10 | |
5 | #include "EXTERN.h" |
11 | #include "EXTERN.h" |
6 | #include "perl.h" |
12 | #include "perl.h" |
7 | #include "XSUB.h" |
13 | #include "XSUB.h" |
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14 | #include "perliol.h" |
8 | |
15 | |
9 | #include "patchlevel.h" |
16 | #include "schmorp.h" |
10 | |
17 | |
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18 | #define ECB_NO_THREADS 1 |
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19 | #include "ecb.h" |
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20 | |
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21 | #include <stddef.h> |
11 | #include <stdio.h> |
22 | #include <stdio.h> |
12 | #include <errno.h> |
23 | #include <errno.h> |
13 | #include <assert.h> |
24 | #include <assert.h> |
14 | |
25 | |
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26 | #ifndef SVs_PADSTALE |
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27 | # define SVs_PADSTALE 0 |
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28 | #endif |
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29 | |
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30 | #ifdef PadARRAY |
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31 | # define NEWPADAPI |
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32 | # define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *)) |
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33 | #else |
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34 | typedef AV PADNAMELIST; |
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35 | # if !PERL_VERSION_ATLEAST(5,8,0) |
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36 | typedef AV PADLIST; |
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37 | typedef AV PAD; |
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38 | # endif |
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39 | # define PadlistARRAY(pl) ((PAD **)AvARRAY (pl)) |
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40 | # define PadlistMAX(pl) AvFILLp (pl) |
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41 | # define PadlistNAMES(pl) (*PadlistARRAY (pl)) |
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42 | # define PadARRAY AvARRAY |
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43 | # define PadMAX AvFILLp |
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44 | # define newPADLIST(var) ((var) = newAV (), av_extend (var, 1)) |
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45 | #endif |
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46 | |
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47 | #if defined(_WIN32) |
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48 | # undef HAS_GETTIMEOFDAY |
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49 | # undef setjmp |
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50 | # undef longjmp |
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51 | # undef _exit |
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52 | # define setjmp _setjmp /* deep magic */ |
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53 | #else |
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54 | # include <inttypes.h> /* most portable stdint.h */ |
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55 | #endif |
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56 | |
15 | #ifdef HAVE_MMAP |
57 | #if HAVE_MMAP |
16 | # include <unistd.h> |
58 | # include <unistd.h> |
17 | # include <sys/mman.h> |
59 | # include <sys/mman.h> |
18 | # ifndef MAP_ANONYMOUS |
60 | # ifndef MAP_ANONYMOUS |
19 | # ifdef MAP_ANON |
61 | # ifdef MAP_ANON |
20 | # define MAP_ANONYMOUS MAP_ANON |
62 | # define MAP_ANONYMOUS MAP_ANON |
… | |
… | |
35 | # define BOOT_PAGESIZE (void)0 |
77 | # define BOOT_PAGESIZE (void)0 |
36 | #endif |
78 | #endif |
37 | |
79 | |
38 | #if CORO_USE_VALGRIND |
80 | #if CORO_USE_VALGRIND |
39 | # include <valgrind/valgrind.h> |
81 | # include <valgrind/valgrind.h> |
40 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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41 | #else |
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42 | # define REGISTER_STACK(cctx,start,end) |
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43 | #endif |
82 | #endif |
44 | |
83 | |
45 | /* the maximum number of idle cctx that will be pooled */ |
84 | /* the maximum number of idle cctx that will be pooled */ |
46 | #define MAX_IDLE_CCTX 8 |
85 | static int cctx_max_idle = 4; |
47 | |
86 | |
48 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
87 | #if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0) |
49 | (PERL_REVISION > (a) \ |
88 | # define HAS_SCOPESTACK_NAME 1 |
50 | || (PERL_REVISION == (a) \ |
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51 | && (PERL_VERSION > (b) \ |
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52 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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53 | |
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54 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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55 | # ifndef PL_ppaddr |
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56 | # define PL_ppaddr ppaddr |
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57 | # endif |
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58 | # ifndef call_sv |
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59 | # define call_sv perl_call_sv |
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60 | # endif |
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61 | # ifndef get_sv |
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62 | # define get_sv perl_get_sv |
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63 | # endif |
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64 | # ifndef get_cv |
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65 | # define get_cv perl_get_cv |
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66 | # endif |
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67 | # ifndef IS_PADGV |
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68 | # define IS_PADGV(v) 0 |
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69 | # endif |
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70 | # ifndef IS_PADCONST |
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71 | # define IS_PADCONST(v) 0 |
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72 | # endif |
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73 | #endif |
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74 | |
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75 | /* 5.8.7 */ |
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76 | #ifndef SvRV_set |
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77 | # define SvRV_set(s,v) SvRV(s) = (v) |
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78 | #endif |
89 | #endif |
79 | |
90 | |
80 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
91 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
81 | # undef CORO_STACKGUARD |
92 | # undef CORO_STACKGUARD |
82 | #endif |
93 | #endif |
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… | |
90 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
101 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
91 | #endif |
102 | #endif |
92 | |
103 | |
93 | /* The next macros try to return the current stack pointer, in an as |
104 | /* The next macros try to return the current stack pointer, in an as |
94 | * portable way as possible. */ |
105 | * portable way as possible. */ |
95 | #define dSTACKLEVEL volatile char stacklevel |
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96 | #define STACKLEVEL ((void *)&stacklevel) |
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97 | |
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98 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
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99 | |
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100 | #if __GNUC__ >= 3 |
106 | #if __GNUC__ >= 4 |
101 | # define attribute(x) __attribute__(x) |
107 | # define dSTACKLEVEL int stacklevel_dummy |
102 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
108 | # define STACKLEVEL __builtin_frame_address (0) |
103 | #else |
109 | #else |
104 | # define attribute(x) |
110 | # define dSTACKLEVEL volatile void *stacklevel |
105 | # define BARRIER |
111 | # define STACKLEVEL ((void *)&stacklevel) |
106 | #endif |
112 | #endif |
107 | |
113 | |
108 | #define NOINLINE attribute ((noinline)) |
114 | #define IN_DESTRUCT PL_dirty |
109 | |
115 | |
110 | #include "CoroAPI.h" |
116 | #include "CoroAPI.h" |
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117 | #define GCoroAPI (&coroapi) /* very sneaky */ |
111 | |
118 | |
112 | #ifdef USE_ITHREADS |
119 | #ifdef USE_ITHREADS |
113 | static perl_mutex coro_mutex; |
120 | # if CORO_PTHREAD |
114 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
121 | static void *coro_thx; |
115 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
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116 | #else |
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117 | # define LOCK (void)0 |
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118 | # define UNLOCK (void)0 |
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119 | #endif |
122 | # endif |
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123 | #endif |
120 | |
124 | |
121 | /* helper storage struct for Coro::AIO */ |
125 | #ifdef __linux |
122 | struct io_state |
126 | # include <time.h> /* for timespec */ |
123 | { |
127 | # include <syscall.h> /* for SYS_* */ |
124 | int errorno; |
128 | # ifdef SYS_clock_gettime |
125 | I32 laststype; |
129 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
126 | int laststatval; |
130 | # define CORO_CLOCK_MONOTONIC 1 |
127 | Stat_t statcache; |
131 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
128 | }; |
132 | # endif |
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133 | #endif |
129 | |
134 | |
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135 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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136 | static void (*u2time)(pTHX_ UV ret[2]); |
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137 | |
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138 | /* we hijack an hopefully unused CV flag for our purposes */ |
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139 | #define CVf_SLF 0x4000 |
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140 | static OP *pp_slf (pTHX); |
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141 | static void slf_destroy (pTHX_ struct coro *coro); |
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142 | |
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143 | static U32 cctx_gen; |
130 | static size_t coro_stacksize = CORO_STACKSIZE; |
144 | static size_t cctx_stacksize = CORO_STACKSIZE; |
131 | static struct CoroAPI coroapi; |
145 | static struct CoroAPI coroapi; |
132 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
146 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
133 | static JMPENV *main_top_env; |
147 | static JMPENV *main_top_env; |
134 | static HV *coro_state_stash, *coro_stash; |
148 | static HV *coro_state_stash, *coro_stash; |
135 | static SV *coro_mortal; /* will be freed after next transfer */ |
149 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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150 | |
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151 | static AV *av_destroy; /* destruction queue */ |
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152 | static SV *sv_manager; /* the manager coro */ |
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153 | static SV *sv_idle; /* $Coro::idle */ |
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154 | |
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155 | static GV *irsgv; /* $/ */ |
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156 | static GV *stdoutgv; /* *STDOUT */ |
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157 | static SV *rv_diehook; |
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158 | static SV *rv_warnhook; |
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159 | static HV *hv_sig; /* %SIG */ |
136 | |
160 | |
137 | /* async_pool helper stuff */ |
161 | /* async_pool helper stuff */ |
138 | static SV *sv_pool_rss; |
162 | static SV *sv_pool_rss; |
139 | static SV *sv_pool_size; |
163 | static SV *sv_pool_size; |
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164 | static SV *sv_async_pool_idle; /* description string */ |
140 | static AV *av_async_pool; |
165 | static AV *av_async_pool; /* idle pool */ |
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166 | static SV *sv_Coro; /* class string */ |
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167 | static CV *cv_pool_handler; |
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168 | |
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169 | /* Coro::AnyEvent */ |
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170 | static SV *sv_activity; |
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171 | |
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172 | /* enable processtime/realtime profiling */ |
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173 | static char enable_times; |
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174 | typedef U32 coro_ts[2]; |
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175 | static coro_ts time_real, time_cpu; |
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176 | static char times_valid; |
141 | |
177 | |
142 | static struct coro_cctx *cctx_first; |
178 | static struct coro_cctx *cctx_first; |
143 | static int cctx_count, cctx_idle; |
179 | static int cctx_count, cctx_idle; |
144 | |
180 | |
145 | enum { |
181 | enum |
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182 | { |
146 | CC_MAPPED = 0x01, |
183 | CC_MAPPED = 0x01, |
147 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
184 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
148 | CC_TRACE = 0x04, |
185 | CC_TRACE = 0x04, |
149 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
186 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
150 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
187 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
151 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
188 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
152 | }; |
189 | }; |
153 | |
190 | |
154 | /* this is a structure representing a c-level coroutine */ |
191 | /* this is a structure representing a c-level coroutine */ |
155 | typedef struct coro_cctx { |
192 | typedef struct coro_cctx |
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193 | { |
156 | struct coro_cctx *next; |
194 | struct coro_cctx *next; |
157 | |
195 | |
158 | /* the stack */ |
196 | /* the stack */ |
159 | void *sptr; |
197 | void *sptr; |
160 | size_t ssize; |
198 | size_t ssize; |
161 | |
199 | |
162 | /* cpu state */ |
200 | /* cpu state */ |
163 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
201 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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202 | #ifndef NDEBUG |
164 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
203 | JMPENV *idle_te; /* same as idle_sp, but for top_env */ |
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204 | #endif |
165 | JMPENV *top_env; |
205 | JMPENV *top_env; |
166 | coro_context cctx; |
206 | coro_context cctx; |
167 | |
207 | |
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208 | U32 gen; |
168 | #if CORO_USE_VALGRIND |
209 | #if CORO_USE_VALGRIND |
169 | int valgrind_id; |
210 | int valgrind_id; |
170 | #endif |
211 | #endif |
171 | unsigned char flags; |
212 | unsigned char flags; |
172 | } coro_cctx; |
213 | } coro_cctx; |
173 | |
214 | |
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215 | static coro_cctx *cctx_current; /* the currently running cctx */ |
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216 | |
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217 | /*****************************************************************************/ |
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218 | |
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219 | static MGVTBL coro_state_vtbl; |
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220 | |
174 | enum { |
221 | enum |
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222 | { |
175 | CF_RUNNING = 0x0001, /* coroutine is running */ |
223 | CF_RUNNING = 0x0001, /* coroutine is running */ |
176 | CF_READY = 0x0002, /* coroutine is ready */ |
224 | CF_READY = 0x0002, /* coroutine is ready */ |
177 | CF_NEW = 0x0004, /* has never been switched to */ |
225 | CF_NEW = 0x0004, /* has never been switched to */ |
178 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
226 | CF_ZOMBIE = 0x0008, /* coroutine data has been freed */ |
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227 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
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228 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
179 | }; |
229 | }; |
180 | |
230 | |
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231 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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232 | typedef struct |
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233 | { |
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234 | #define VARx(name,expr,type) type name; |
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235 | #include "state.h" |
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236 | } perl_slots; |
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237 | |
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238 | /* how many context stack entries do we need for perl_slots */ |
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239 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
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240 | |
181 | /* this is a structure representing a perl-level coroutine */ |
241 | /* this is a structure representing a perl-level coroutine */ |
182 | struct coro { |
242 | struct coro |
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243 | { |
183 | /* the c coroutine allocated to this perl coroutine, if any */ |
244 | /* the C coroutine allocated to this perl coroutine, if any */ |
184 | coro_cctx *cctx; |
245 | coro_cctx *cctx; |
185 | |
246 | |
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247 | /* ready queue */ |
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248 | struct coro *next_ready; |
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249 | |
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250 | /* state data */ |
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251 | struct CoroSLF slf_frame; /* saved slf frame */ |
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252 | AV *mainstack; |
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253 | perl_slots *slot; /* basically the saved sp */ |
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254 | |
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255 | CV *startcv; /* the CV to execute */ |
186 | /* data associated with this coroutine (initial args) */ |
256 | AV *args; /* data associated with this coroutine (initial args) */ |
187 | AV *args; |
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188 | int refcnt; |
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189 | int save; /* CORO_SAVE flags */ |
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190 | int flags; /* CF_ flags */ |
257 | int flags; /* CF_ flags */ |
191 | |
258 | HV *hv; /* the perl hash associated with this coro, if any */ |
192 | /* optionally saved, might be zero */ |
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193 | AV *defav; /* @_ */ |
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194 | SV *defsv; /* $_ */ |
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195 | SV *errsv; /* $@ */ |
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196 | GV *deffh; /* default filehandle */ |
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197 | SV *irssv; /* $/ */ |
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198 | SV *irssv_sv; /* real $/ cache */ |
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199 | |
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200 | #define VAR(name,type) type name; |
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201 | # include "state.h" |
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202 | #undef VAR |
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203 | |
259 | |
204 | /* statistics */ |
260 | /* statistics */ |
205 | int usecount; /* number of switches to this coro */ |
261 | int usecount; /* number of transfers to this coro */ |
206 | |
262 | |
207 | /* coro process data */ |
263 | /* coro process data */ |
208 | int prio; |
264 | int prio; |
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265 | SV *except; /* exception to be thrown */ |
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266 | SV *rouse_cb; /* last rouse callback */ |
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267 | AV *on_destroy; /* callbacks or coros to notify on destroy */ |
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268 | AV *status; /* the exit status list */ |
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269 | |
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270 | /* async_pool */ |
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271 | SV *saved_deffh; |
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272 | SV *invoke_cb; |
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273 | AV *invoke_av; |
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274 | |
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275 | /* on_enter/on_leave */ |
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276 | AV *on_enter; |
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277 | AV *on_leave; |
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278 | |
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279 | /* swap_sv */ |
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280 | AV *swap_sv; |
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281 | |
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282 | /* times */ |
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283 | coro_ts t_cpu, t_real; |
209 | |
284 | |
210 | /* linked list */ |
285 | /* linked list */ |
211 | struct coro *next, *prev; |
286 | struct coro *next, *prev; |
212 | HV *hv; /* the perl hash associated with this coro, if any */ |
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213 | }; |
287 | }; |
214 | |
288 | |
215 | typedef struct coro *Coro__State; |
289 | typedef struct coro *Coro__State; |
216 | typedef struct coro *Coro__State_or_hashref; |
290 | typedef struct coro *Coro__State_or_hashref; |
217 | |
291 | |
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292 | /* the following variables are effectively part of the perl context */ |
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293 | /* and get copied between struct coro and these variables */ |
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294 | /* the main reason we don't support windows process emulation */ |
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295 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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296 | |
218 | /** Coro ********************************************************************/ |
297 | /** Coro ********************************************************************/ |
219 | |
298 | |
220 | #define PRIO_MAX 3 |
299 | #define CORO_PRIO_MAX 3 |
221 | #define PRIO_HIGH 1 |
300 | #define CORO_PRIO_HIGH 1 |
222 | #define PRIO_NORMAL 0 |
301 | #define CORO_PRIO_NORMAL 0 |
223 | #define PRIO_LOW -1 |
302 | #define CORO_PRIO_LOW -1 |
224 | #define PRIO_IDLE -3 |
303 | #define CORO_PRIO_IDLE -3 |
225 | #define PRIO_MIN -4 |
304 | #define CORO_PRIO_MIN -4 |
226 | |
305 | |
227 | /* for Coro.pm */ |
306 | /* for Coro.pm */ |
228 | static SV *coro_current; |
307 | static SV *coro_current; |
229 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
308 | static SV *coro_readyhook; |
230 | static int coro_nready; |
309 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
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310 | static CV *cv_coro_run; |
231 | static struct coro *coro_first; |
311 | static struct coro *coro_first; |
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312 | #define coro_nready coroapi.nready |
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313 | |
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314 | /** JIT *********************************************************************/ |
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315 | |
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316 | #if CORO_JIT |
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317 | /* APPLE doesn't have HAVE_MMAP though */ |
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318 | #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__) |
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319 | #ifndef CORO_JIT_TYPE |
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320 | #if __x86_64 && CORO_JIT_UNIXY |
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321 | #define CORO_JIT_TYPE "amd64-unix" |
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322 | #elif __i386 && CORO_JIT_UNIXY |
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323 | #define CORO_JIT_TYPE "x86-unix" |
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324 | #endif |
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325 | #endif |
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326 | #endif |
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327 | |
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328 | #if !defined(CORO_JIT_TYPE) || !HAVE_MMAP |
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329 | #undef CORO_JIT |
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330 | #endif |
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331 | |
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332 | #if CORO_JIT |
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333 | typedef void (*load_save_perl_slots_type)(perl_slots *); |
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334 | static load_save_perl_slots_type load_perl_slots, save_perl_slots; |
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335 | #endif |
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336 | |
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337 | /** Coro::Select ************************************************************/ |
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338 | |
|
|
339 | static OP *(*coro_old_pp_sselect) (pTHX); |
|
|
340 | static SV *coro_select_select; |
|
|
341 | |
|
|
342 | /* horrible hack, but if it works... */ |
|
|
343 | static OP * |
|
|
344 | coro_pp_sselect (pTHX) |
|
|
345 | { |
|
|
346 | dSP; |
|
|
347 | PUSHMARK (SP - 4); /* fake argument list */ |
|
|
348 | XPUSHs (coro_select_select); |
|
|
349 | PUTBACK; |
|
|
350 | |
|
|
351 | /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ |
|
|
352 | PL_op->op_flags |= OPf_STACKED; |
|
|
353 | PL_op->op_private = 0; |
|
|
354 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
|
|
355 | } |
|
|
356 | |
|
|
357 | /** time stuff **************************************************************/ |
|
|
358 | |
|
|
359 | #ifdef HAS_GETTIMEOFDAY |
|
|
360 | |
|
|
361 | ecb_inline void |
|
|
362 | coro_u2time (pTHX_ UV ret[2]) |
|
|
363 | { |
|
|
364 | struct timeval tv; |
|
|
365 | gettimeofday (&tv, 0); |
|
|
366 | |
|
|
367 | ret [0] = tv.tv_sec; |
|
|
368 | ret [1] = tv.tv_usec; |
|
|
369 | } |
|
|
370 | |
|
|
371 | ecb_inline double |
|
|
372 | coro_nvtime (void) |
|
|
373 | { |
|
|
374 | struct timeval tv; |
|
|
375 | gettimeofday (&tv, 0); |
|
|
376 | |
|
|
377 | return tv.tv_sec + tv.tv_usec * 1e-6; |
|
|
378 | } |
|
|
379 | |
|
|
380 | ecb_inline void |
|
|
381 | time_init (pTHX) |
|
|
382 | { |
|
|
383 | nvtime = coro_nvtime; |
|
|
384 | u2time = coro_u2time; |
|
|
385 | } |
|
|
386 | |
|
|
387 | #else |
|
|
388 | |
|
|
389 | ecb_inline void |
|
|
390 | time_init (pTHX) |
|
|
391 | { |
|
|
392 | SV **svp; |
|
|
393 | |
|
|
394 | require_pv ("Time/HiRes.pm"); |
|
|
395 | |
|
|
396 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
397 | |
|
|
398 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
|
|
399 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
|
|
400 | |
|
|
401 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
402 | |
|
|
403 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
|
|
404 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
|
|
405 | } |
|
|
406 | |
|
|
407 | #endif |
232 | |
408 | |
233 | /** lowlevel stuff **********************************************************/ |
409 | /** lowlevel stuff **********************************************************/ |
234 | |
410 | |
235 | static AV * |
411 | static SV * ecb_noinline |
|
|
412 | coro_get_sv (pTHX_ const char *name, int create) |
|
|
413 | { |
|
|
414 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
415 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
416 | get_sv (name, create); |
|
|
417 | #endif |
|
|
418 | return get_sv (name, create); |
|
|
419 | } |
|
|
420 | |
|
|
421 | static AV * ecb_noinline |
|
|
422 | coro_get_av (pTHX_ const char *name, int create) |
|
|
423 | { |
|
|
424 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
425 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
426 | get_av (name, create); |
|
|
427 | #endif |
|
|
428 | return get_av (name, create); |
|
|
429 | } |
|
|
430 | |
|
|
431 | static HV * ecb_noinline |
|
|
432 | coro_get_hv (pTHX_ const char *name, int create) |
|
|
433 | { |
|
|
434 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
435 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
|
|
436 | get_hv (name, create); |
|
|
437 | #endif |
|
|
438 | return get_hv (name, create); |
|
|
439 | } |
|
|
440 | |
|
|
441 | ecb_inline void |
|
|
442 | coro_times_update (void) |
|
|
443 | { |
|
|
444 | #ifdef coro_clock_gettime |
|
|
445 | struct timespec ts; |
|
|
446 | |
|
|
447 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
448 | coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts); |
|
|
449 | time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec; |
|
|
450 | |
|
|
451 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
452 | coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); |
|
|
453 | time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; |
|
|
454 | #else |
|
|
455 | dTHX; |
|
|
456 | UV tv[2]; |
|
|
457 | |
|
|
458 | u2time (aTHX_ tv); |
|
|
459 | time_real [0] = tv [0]; |
|
|
460 | time_real [1] = tv [1] * 1000; |
|
|
461 | #endif |
|
|
462 | } |
|
|
463 | |
|
|
464 | ecb_inline void |
|
|
465 | coro_times_add (struct coro *c) |
|
|
466 | { |
|
|
467 | c->t_real [1] += time_real [1]; |
|
|
468 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
|
|
469 | c->t_real [0] += time_real [0]; |
|
|
470 | |
|
|
471 | c->t_cpu [1] += time_cpu [1]; |
|
|
472 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
|
|
473 | c->t_cpu [0] += time_cpu [0]; |
|
|
474 | } |
|
|
475 | |
|
|
476 | ecb_inline void |
|
|
477 | coro_times_sub (struct coro *c) |
|
|
478 | { |
|
|
479 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
|
|
480 | c->t_real [1] -= time_real [1]; |
|
|
481 | c->t_real [0] -= time_real [0]; |
|
|
482 | |
|
|
483 | if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; } |
|
|
484 | c->t_cpu [1] -= time_cpu [1]; |
|
|
485 | c->t_cpu [0] -= time_cpu [0]; |
|
|
486 | } |
|
|
487 | |
|
|
488 | /*****************************************************************************/ |
|
|
489 | /* magic glue */ |
|
|
490 | |
|
|
491 | #define CORO_MAGIC_type_cv 26 |
|
|
492 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
493 | |
|
|
494 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
495 | (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
496 | ? SvMAGIC (sv) \ |
|
|
497 | : mg_find (sv, type)) |
|
|
498 | |
|
|
499 | #define CORO_MAGIC(sv, type) \ |
|
|
500 | (ecb_expect_true (SvMAGIC (sv)) \ |
|
|
501 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
502 | : 0) |
|
|
503 | |
|
|
504 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
505 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
506 | |
|
|
507 | ecb_inline MAGIC * |
|
|
508 | SvSTATEhv_p (pTHX_ SV *coro) |
|
|
509 | { |
|
|
510 | MAGIC *mg; |
|
|
511 | |
|
|
512 | if (ecb_expect_true ( |
|
|
513 | SvTYPE (coro) == SVt_PVHV |
|
|
514 | && (mg = CORO_MAGIC_state (coro)) |
|
|
515 | && mg->mg_virtual == &coro_state_vtbl |
|
|
516 | )) |
|
|
517 | return mg; |
|
|
518 | |
|
|
519 | return 0; |
|
|
520 | } |
|
|
521 | |
|
|
522 | ecb_inline struct coro * |
|
|
523 | SvSTATE_ (pTHX_ SV *coro) |
|
|
524 | { |
|
|
525 | MAGIC *mg; |
|
|
526 | |
|
|
527 | if (SvROK (coro)) |
|
|
528 | coro = SvRV (coro); |
|
|
529 | |
|
|
530 | mg = SvSTATEhv_p (aTHX_ coro); |
|
|
531 | if (!mg) |
|
|
532 | croak ("Coro::State object required"); |
|
|
533 | |
|
|
534 | return (struct coro *)mg->mg_ptr; |
|
|
535 | } |
|
|
536 | |
|
|
537 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
538 | |
|
|
539 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
540 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
541 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
542 | |
|
|
543 | /*****************************************************************************/ |
|
|
544 | /* padlist management and caching */ |
|
|
545 | |
|
|
546 | ecb_inline PADLIST * |
236 | coro_clone_padlist (pTHX_ CV *cv) |
547 | coro_derive_padlist (pTHX_ CV *cv) |
237 | { |
548 | { |
238 | AV *padlist = CvPADLIST (cv); |
549 | PADLIST *padlist = CvPADLIST (cv); |
239 | AV *newpadlist, *newpad; |
550 | PADLIST *newpadlist; |
|
|
551 | PAD *newpad; |
|
|
552 | PADOFFSET const off = PadlistMAX (padlist) + 1; |
240 | |
553 | |
241 | newpadlist = newAV (); |
554 | newPADLIST(newpadlist); |
|
|
555 | #if !PERL_VERSION_ATLEAST(5,15,3) |
|
|
556 | /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */ |
242 | AvREAL_off (newpadlist); |
557 | AvREAL_off (newpadlist); |
|
|
558 | #endif |
243 | #if PERL_VERSION_ATLEAST (5,9,0) |
559 | #if PERL_VERSION_ATLEAST (5,10,0) |
244 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
560 | Perl_pad_push (aTHX_ padlist, off); |
245 | #else |
561 | #else |
246 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
562 | Perl_pad_push (aTHX_ padlist, off, 1); |
247 | #endif |
563 | #endif |
248 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
564 | newpad = PadlistARRAY (padlist)[off]; |
249 | --AvFILLp (padlist); |
565 | PadlistMAX (padlist) = off - 1; |
250 | |
566 | |
251 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
567 | /* Already extended to 2 elements by newPADLIST. */ |
252 | av_store (newpadlist, 1, (SV *)newpad); |
568 | PadlistMAX (newpadlist) = 1; |
|
|
569 | PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist)); |
|
|
570 | PadlistARRAY (newpadlist)[1] = newpad; |
253 | |
571 | |
254 | return newpadlist; |
572 | return newpadlist; |
255 | } |
573 | } |
256 | |
574 | |
257 | static void |
575 | ecb_inline void |
258 | free_padlist (pTHX_ AV *padlist) |
576 | free_padlist (pTHX_ PADLIST *padlist) |
259 | { |
577 | { |
260 | /* may be during global destruction */ |
578 | /* may be during global destruction */ |
261 | if (SvREFCNT (padlist)) |
579 | if (!IN_DESTRUCT) |
262 | { |
580 | { |
263 | I32 i = AvFILLp (padlist); |
581 | I32 i = PadlistMAX (padlist); |
264 | while (i >= 0) |
582 | |
|
|
583 | while (i > 0) /* special-case index 0 */ |
265 | { |
584 | { |
266 | SV **svp = av_fetch (padlist, i--, FALSE); |
585 | /* we try to be extra-careful here */ |
267 | if (svp) |
586 | PAD *pad = PadlistARRAY (padlist)[i--]; |
268 | { |
587 | I32 j = PadMAX (pad); |
269 | SV *sv; |
|
|
270 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
|
|
271 | SvREFCNT_dec (sv); |
|
|
272 | |
588 | |
|
|
589 | while (j >= 0) |
|
|
590 | SvREFCNT_dec (PadARRAY (pad)[j--]); |
|
|
591 | |
|
|
592 | PadMAX (pad) = -1; |
273 | SvREFCNT_dec (*svp); |
593 | SvREFCNT_dec (pad); |
274 | } |
|
|
275 | } |
594 | } |
276 | |
595 | |
|
|
596 | SvREFCNT_dec (PadlistNAMES (padlist)); |
|
|
597 | |
|
|
598 | #ifdef NEWPADAPI |
|
|
599 | Safefree (PadlistARRAY (padlist)); |
|
|
600 | Safefree (padlist); |
|
|
601 | #else |
|
|
602 | AvFILLp (padlist) = -1; |
|
|
603 | AvREAL_off (padlist); |
277 | SvREFCNT_dec ((SV*)padlist); |
604 | SvREFCNT_dec ((SV*)padlist); |
|
|
605 | #endif |
278 | } |
606 | } |
279 | } |
607 | } |
280 | |
608 | |
281 | static int |
609 | static int |
282 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
610 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
283 | { |
611 | { |
284 | AV *padlist; |
612 | PADLIST *padlist; |
285 | AV *av = (AV *)mg->mg_obj; |
613 | PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t)); |
|
|
614 | size_t len = *(size_t *)mg->mg_ptr; |
286 | |
615 | |
287 | /* casting is fun. */ |
616 | /* perl manages to free our internal AV and _then_ call us */ |
288 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
617 | if (IN_DESTRUCT) |
|
|
618 | return 0; |
|
|
619 | |
|
|
620 | while (len--) |
289 | free_padlist (aTHX_ padlist); |
621 | free_padlist (aTHX_ padlists[len]); |
290 | |
|
|
291 | SvREFCNT_dec (av); |
|
|
292 | |
622 | |
293 | return 0; |
623 | return 0; |
294 | } |
624 | } |
295 | |
625 | |
296 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
626 | static MGVTBL coro_cv_vtbl = { |
297 | |
627 | 0, 0, 0, 0, |
298 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
628 | coro_cv_free |
299 | |
629 | }; |
300 | #define CORO_MAGIC(cv) \ |
|
|
301 | SvMAGIC (cv) \ |
|
|
302 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
|
|
303 | ? SvMAGIC (cv) \ |
|
|
304 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
|
|
305 | : 0 |
|
|
306 | |
|
|
307 | static struct coro * |
|
|
308 | SvSTATE_ (pTHX_ SV *coro) |
|
|
309 | { |
|
|
310 | HV *stash; |
|
|
311 | MAGIC *mg; |
|
|
312 | |
|
|
313 | if (SvROK (coro)) |
|
|
314 | coro = SvRV (coro); |
|
|
315 | |
|
|
316 | if (SvTYPE (coro) != SVt_PVHV) |
|
|
317 | croak ("Coro::State object required"); |
|
|
318 | |
|
|
319 | stash = SvSTASH (coro); |
|
|
320 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
321 | { |
|
|
322 | /* very slow, but rare, check */ |
|
|
323 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
324 | croak ("Coro::State object required"); |
|
|
325 | } |
|
|
326 | |
|
|
327 | mg = CORO_MAGIC (coro); |
|
|
328 | return (struct coro *)mg->mg_ptr; |
|
|
329 | } |
|
|
330 | |
|
|
331 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
332 | |
630 | |
333 | /* the next two functions merely cache the padlists */ |
631 | /* the next two functions merely cache the padlists */ |
334 | static void |
632 | ecb_inline void |
335 | get_padlist (pTHX_ CV *cv) |
633 | get_padlist (pTHX_ CV *cv) |
336 | { |
634 | { |
337 | MAGIC *mg = CORO_MAGIC (cv); |
635 | MAGIC *mg = CORO_MAGIC_cv (cv); |
338 | AV *av; |
636 | size_t *lenp; |
339 | |
637 | |
340 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
638 | if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr))) |
341 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
639 | CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp]; |
342 | else |
640 | else |
343 | { |
641 | { |
344 | #if CORO_PREFER_PERL_FUNCTIONS |
642 | #if CORO_PREFER_PERL_FUNCTIONS |
345 | /* this is probably cleaner, but also slower? */ |
643 | /* this is probably cleaner? but also slower! */ |
|
|
644 | /* in practise, it seems to be less stable */ |
346 | CV *cp = Perl_cv_clone (cv); |
645 | CV *cp = Perl_cv_clone (aTHX_ cv); |
347 | CvPADLIST (cv) = CvPADLIST (cp); |
646 | CvPADLIST (cv) = CvPADLIST (cp); |
348 | CvPADLIST (cp) = 0; |
647 | CvPADLIST (cp) = 0; |
349 | SvREFCNT_dec (cp); |
648 | SvREFCNT_dec (cp); |
350 | #else |
649 | #else |
351 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
650 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
352 | #endif |
651 | #endif |
353 | } |
652 | } |
354 | } |
653 | } |
355 | |
654 | |
356 | static void |
655 | ecb_inline void |
357 | put_padlist (pTHX_ CV *cv) |
656 | put_padlist (pTHX_ CV *cv) |
358 | { |
657 | { |
359 | MAGIC *mg = CORO_MAGIC (cv); |
658 | MAGIC *mg = CORO_MAGIC_cv (cv); |
360 | AV *av; |
|
|
361 | |
659 | |
362 | if (!mg) |
660 | if (ecb_expect_false (!mg)) |
363 | { |
|
|
364 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
365 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
366 | mg->mg_virtual = &vtbl_coro; |
|
|
367 | mg->mg_obj = (SV *)newAV (); |
|
|
368 | } |
661 | { |
|
|
662 | mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
|
|
663 | Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char); |
|
|
664 | mg->mg_len = 1; /* so mg_free frees mg_ptr */ |
|
|
665 | } |
|
|
666 | else |
|
|
667 | Renew (mg->mg_ptr, |
|
|
668 | sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *), |
|
|
669 | char); |
369 | |
670 | |
370 | av = (AV *)mg->mg_obj; |
671 | ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv); |
371 | |
|
|
372 | if (AvFILLp (av) >= AvMAX (av)) |
|
|
373 | av_extend (av, AvMAX (av) + 1); |
|
|
374 | |
|
|
375 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
|
|
376 | } |
672 | } |
377 | |
673 | |
378 | /** load & save, init *******************************************************/ |
674 | /** load & save, init *******************************************************/ |
379 | |
675 | |
380 | #define SB do { |
676 | ecb_inline void |
381 | #define SE } while (0) |
677 | swap_sv (SV *a, SV *b) |
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|
678 | { |
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|
679 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
680 | SV tmp; |
382 | |
681 | |
383 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
682 | /* swap sv_any */ |
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|
683 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
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|
684 | |
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|
685 | /* swap sv_flags */ |
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|
686 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
687 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
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|
688 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
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|
689 | |
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|
690 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
691 | /* perl 5.10 and later complicates this _quite_ a bit, but it also |
|
|
692 | * is much faster, so no quarrels here. alternatively, we could |
|
|
693 | * sv_upgrade to avoid this. |
|
|
694 | */ |
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|
695 | { |
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696 | /* swap sv_u */ |
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|
697 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
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|
698 | |
|
|
699 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
700 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
701 | */ |
|
|
702 | #define svany_in_head(type) \ |
|
|
703 | (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type))) |
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|
704 | |
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|
705 | if (svany_in_head (SvTYPE (a))) |
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|
706 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
707 | |
|
|
708 | if (svany_in_head (SvTYPE (b))) |
|
|
709 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
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|
710 | } |
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|
711 | #endif |
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|
712 | } |
|
|
713 | |
|
|
714 | /* swap sv heads, at least logically */ |
|
|
715 | static void |
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|
716 | swap_svs (pTHX_ Coro__State c) |
|
|
717 | { |
|
|
718 | int i; |
|
|
719 | |
|
|
720 | for (i = 0; i <= AvFILLp (c->swap_sv); i += 2) |
|
|
721 | swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]); |
|
|
722 | } |
|
|
723 | |
|
|
724 | #define SWAP_SVS(coro) \ |
|
|
725 | if (ecb_expect_false ((coro)->swap_sv)) \ |
|
|
726 | swap_svs (aTHX_ (coro)) |
|
|
727 | |
|
|
728 | static void |
|
|
729 | on_enterleave_call (pTHX_ SV *cb); |
384 | |
730 | |
385 | static void |
731 | static void |
386 | load_perl (pTHX_ Coro__State c) |
732 | load_perl (pTHX_ Coro__State c) |
387 | { |
733 | { |
388 | #define VAR(name,type) PL_ ## name = c->name; |
734 | perl_slots *slot = c->slot; |
|
|
735 | c->slot = 0; |
|
|
736 | |
|
|
737 | PL_mainstack = c->mainstack; |
|
|
738 | |
|
|
739 | #if CORO_JIT |
|
|
740 | load_perl_slots (slot); |
|
|
741 | #else |
|
|
742 | #define VARx(name,expr,type) expr = slot->name; |
389 | # include "state.h" |
743 | #include "state.h" |
390 | #undef VAR |
744 | #endif |
391 | |
|
|
392 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
|
|
393 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
|
|
394 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
395 | if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh); |
|
|
396 | |
|
|
397 | if (c->irssv) |
|
|
398 | { |
|
|
399 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
|
|
400 | { |
|
|
401 | SvREFCNT_dec (c->irssv); |
|
|
402 | c->irssv = 0; |
|
|
403 | } |
|
|
404 | else |
|
|
405 | { |
|
|
406 | REPLACE_SV (PL_rs, c->irssv); |
|
|
407 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
|
|
408 | sv_setsv (c->irssv_sv, PL_rs); |
|
|
409 | } |
|
|
410 | } |
|
|
411 | |
745 | |
412 | { |
746 | { |
413 | dSP; |
747 | dSP; |
|
|
748 | |
414 | CV *cv; |
749 | CV *cv; |
415 | |
750 | |
416 | /* now do the ugly restore mess */ |
751 | /* now do the ugly restore mess */ |
417 | while ((cv = (CV *)POPs)) |
752 | while (ecb_expect_true (cv = (CV *)POPs)) |
418 | { |
753 | { |
419 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
754 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
420 | CvDEPTH (cv) = PTR2IV (POPs); |
755 | CvDEPTH (cv) = PTR2IV (POPs); |
421 | CvPADLIST (cv) = (AV *)POPs; |
756 | CvPADLIST (cv) = (PADLIST *)POPs; |
422 | } |
757 | } |
423 | |
758 | |
424 | PUTBACK; |
759 | PUTBACK; |
425 | } |
760 | } |
|
|
761 | |
|
|
762 | slf_frame = c->slf_frame; |
|
|
763 | CORO_THROW = c->except; |
|
|
764 | |
|
|
765 | if (ecb_expect_false (enable_times)) |
|
|
766 | { |
|
|
767 | if (ecb_expect_false (!times_valid)) |
|
|
768 | coro_times_update (); |
|
|
769 | |
|
|
770 | coro_times_sub (c); |
|
|
771 | } |
|
|
772 | |
|
|
773 | if (ecb_expect_false (c->on_enter)) |
|
|
774 | { |
|
|
775 | int i; |
|
|
776 | |
|
|
777 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
778 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
779 | } |
|
|
780 | |
|
|
781 | SWAP_SVS (c); |
426 | } |
782 | } |
427 | |
783 | |
428 | static void |
784 | static void |
429 | save_perl (pTHX_ Coro__State c) |
785 | save_perl (pTHX_ Coro__State c) |
430 | { |
786 | { |
|
|
787 | SWAP_SVS (c); |
|
|
788 | |
|
|
789 | if (ecb_expect_false (c->on_leave)) |
|
|
790 | { |
|
|
791 | int i; |
|
|
792 | |
|
|
793 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
794 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
795 | } |
|
|
796 | |
|
|
797 | times_valid = 0; |
|
|
798 | |
|
|
799 | if (ecb_expect_false (enable_times)) |
|
|
800 | { |
|
|
801 | coro_times_update (); times_valid = 1; |
|
|
802 | coro_times_add (c); |
|
|
803 | } |
|
|
804 | |
|
|
805 | c->except = CORO_THROW; |
|
|
806 | c->slf_frame = slf_frame; |
|
|
807 | |
431 | { |
808 | { |
432 | dSP; |
809 | dSP; |
433 | I32 cxix = cxstack_ix; |
810 | I32 cxix = cxstack_ix; |
434 | PERL_CONTEXT *ccstk = cxstack; |
811 | PERL_CONTEXT *ccstk = cxstack; |
435 | PERL_SI *top_si = PL_curstackinfo; |
812 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
441 | |
818 | |
442 | XPUSHs (Nullsv); |
819 | XPUSHs (Nullsv); |
443 | /* this loop was inspired by pp_caller */ |
820 | /* this loop was inspired by pp_caller */ |
444 | for (;;) |
821 | for (;;) |
445 | { |
822 | { |
446 | while (cxix >= 0) |
823 | while (ecb_expect_true (cxix >= 0)) |
447 | { |
824 | { |
448 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
825 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
449 | |
826 | |
450 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
827 | if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT)) |
451 | { |
828 | { |
452 | CV *cv = cx->blk_sub.cv; |
829 | CV *cv = cx->blk_sub.cv; |
453 | |
830 | |
454 | if (CvDEPTH (cv)) |
831 | if (ecb_expect_true (CvDEPTH (cv))) |
455 | { |
832 | { |
456 | EXTEND (SP, 3); |
833 | EXTEND (SP, 3); |
457 | PUSHs ((SV *)CvPADLIST (cv)); |
834 | PUSHs ((SV *)CvPADLIST (cv)); |
458 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
835 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
459 | PUSHs ((SV *)cv); |
836 | PUSHs ((SV *)cv); |
460 | |
837 | |
461 | CvDEPTH (cv) = 0; |
838 | CvDEPTH (cv) = 0; |
462 | get_padlist (aTHX_ cv); |
839 | get_padlist (aTHX_ cv); |
463 | } |
840 | } |
464 | } |
841 | } |
465 | } |
842 | } |
466 | |
843 | |
467 | if (top_si->si_type == PERLSI_MAIN) |
844 | if (ecb_expect_true (top_si->si_type == PERLSI_MAIN)) |
468 | break; |
845 | break; |
469 | |
846 | |
470 | top_si = top_si->si_prev; |
847 | top_si = top_si->si_prev; |
471 | ccstk = top_si->si_cxstack; |
848 | ccstk = top_si->si_cxstack; |
472 | cxix = top_si->si_cxix; |
849 | cxix = top_si->si_cxix; |
473 | } |
850 | } |
474 | |
851 | |
475 | PUTBACK; |
852 | PUTBACK; |
476 | } |
853 | } |
477 | |
854 | |
478 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
855 | /* allocate some space on the context stack for our purposes */ |
479 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
856 | if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max)) |
480 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
857 | { |
481 | c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; |
858 | unsigned int i; |
482 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
|
|
483 | |
859 | |
484 | #define VAR(name,type)c->name = PL_ ## name; |
860 | for (i = 0; i < SLOT_COUNT; ++i) |
|
|
861 | CXINC; |
|
|
862 | |
|
|
863 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
864 | } |
|
|
865 | |
|
|
866 | c->mainstack = PL_mainstack; |
|
|
867 | |
|
|
868 | { |
|
|
869 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
870 | |
|
|
871 | #if CORO_JIT |
|
|
872 | save_perl_slots (slot); |
|
|
873 | #else |
|
|
874 | #define VARx(name,expr,type) slot->name = expr; |
485 | # include "state.h" |
875 | #include "state.h" |
486 | #undef VAR |
876 | #endif |
|
|
877 | } |
487 | } |
878 | } |
488 | |
879 | |
489 | /* |
880 | /* |
490 | * allocate various perl stacks. This is an exact copy |
881 | * allocate various perl stacks. This is almost an exact copy |
491 | * of perl.c:init_stacks, except that it uses less memory |
882 | * of perl.c:init_stacks, except that it uses less memory |
492 | * on the (sometimes correct) assumption that coroutines do |
883 | * on the (sometimes correct) assumption that coroutines do |
493 | * not usually need a lot of stackspace. |
884 | * not usually need a lot of stackspace. |
494 | */ |
885 | */ |
495 | #if CORO_PREFER_PERL_FUNCTIONS |
886 | #if CORO_PREFER_PERL_FUNCTIONS |
496 | # define coro_init_stacks init_stacks |
887 | # define coro_init_stacks(thx) init_stacks () |
497 | #else |
888 | #else |
498 | static void |
889 | static void |
499 | coro_init_stacks (pTHX) |
890 | coro_init_stacks (pTHX) |
500 | { |
891 | { |
501 | PL_curstackinfo = new_stackinfo(64, 6); |
892 | PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */ |
502 | PL_curstackinfo->si_type = PERLSI_MAIN; |
893 | PL_curstackinfo->si_type = PERLSI_MAIN; |
503 | PL_curstack = PL_curstackinfo->si_stack; |
894 | PL_curstack = PL_curstackinfo->si_stack; |
504 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
895 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
505 | |
896 | |
506 | PL_stack_base = AvARRAY(PL_curstack); |
897 | PL_stack_base = AvARRAY(PL_curstack); |
507 | PL_stack_sp = PL_stack_base; |
898 | PL_stack_sp = PL_stack_base; |
508 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
899 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
509 | |
900 | |
510 | New(50,PL_tmps_stack,64,SV*); |
901 | New(50,PL_tmps_stack,32,SV*); |
511 | PL_tmps_floor = -1; |
902 | PL_tmps_floor = -1; |
512 | PL_tmps_ix = -1; |
903 | PL_tmps_ix = -1; |
513 | PL_tmps_max = 64; |
904 | PL_tmps_max = 32; |
514 | |
905 | |
515 | New(54,PL_markstack,16,I32); |
906 | New(54,PL_markstack,16,I32); |
516 | PL_markstack_ptr = PL_markstack; |
907 | PL_markstack_ptr = PL_markstack; |
517 | PL_markstack_max = PL_markstack + 16; |
908 | PL_markstack_max = PL_markstack + 16; |
518 | |
909 | |
519 | #ifdef SET_MARK_OFFSET |
910 | #ifdef SET_MARK_OFFSET |
520 | SET_MARK_OFFSET; |
911 | SET_MARK_OFFSET; |
521 | #endif |
912 | #endif |
522 | |
913 | |
523 | New(54,PL_scopestack,16,I32); |
914 | New(54,PL_scopestack,8,I32); |
524 | PL_scopestack_ix = 0; |
915 | PL_scopestack_ix = 0; |
525 | PL_scopestack_max = 16; |
916 | PL_scopestack_max = 8; |
|
|
917 | #if HAS_SCOPESTACK_NAME |
|
|
918 | New(54,PL_scopestack_name,8,const char*); |
|
|
919 | #endif |
526 | |
920 | |
527 | New(54,PL_savestack,64,ANY); |
921 | New(54,PL_savestack,24,ANY); |
528 | PL_savestack_ix = 0; |
922 | PL_savestack_ix = 0; |
529 | PL_savestack_max = 64; |
923 | PL_savestack_max = 24; |
530 | |
924 | |
531 | #if !PERL_VERSION_ATLEAST (5,9,0) |
925 | #if !PERL_VERSION_ATLEAST (5,10,0) |
532 | New(54,PL_retstack,4,OP*); |
926 | New(54,PL_retstack,4,OP*); |
533 | PL_retstack_ix = 0; |
927 | PL_retstack_ix = 0; |
534 | PL_retstack_max = 4; |
928 | PL_retstack_max = 4; |
535 | #endif |
929 | #endif |
536 | } |
930 | } |
… | |
… | |
538 | |
932 | |
539 | /* |
933 | /* |
540 | * destroy the stacks, the callchain etc... |
934 | * destroy the stacks, the callchain etc... |
541 | */ |
935 | */ |
542 | static void |
936 | static void |
543 | coro_destroy_stacks (pTHX) |
937 | coro_destruct_stacks (pTHX) |
544 | { |
938 | { |
545 | if (!IN_DESTRUCT) |
|
|
546 | { |
|
|
547 | /* restore all saved variables and stuff */ |
|
|
548 | LEAVE_SCOPE (0); |
|
|
549 | assert (PL_tmps_floor == -1); |
|
|
550 | |
|
|
551 | /* free all temporaries */ |
|
|
552 | FREETMPS; |
|
|
553 | assert (PL_tmps_ix == -1); |
|
|
554 | |
|
|
555 | /* unwind all extra stacks */ |
|
|
556 | POPSTACK_TO (PL_mainstack); |
|
|
557 | |
|
|
558 | /* unwind main stack */ |
|
|
559 | dounwind (-1); |
|
|
560 | } |
|
|
561 | |
|
|
562 | while (PL_curstackinfo->si_next) |
939 | while (PL_curstackinfo->si_next) |
563 | PL_curstackinfo = PL_curstackinfo->si_next; |
940 | PL_curstackinfo = PL_curstackinfo->si_next; |
564 | |
941 | |
565 | while (PL_curstackinfo) |
942 | while (PL_curstackinfo) |
566 | { |
943 | { |
… | |
… | |
575 | } |
952 | } |
576 | |
953 | |
577 | Safefree (PL_tmps_stack); |
954 | Safefree (PL_tmps_stack); |
578 | Safefree (PL_markstack); |
955 | Safefree (PL_markstack); |
579 | Safefree (PL_scopestack); |
956 | Safefree (PL_scopestack); |
|
|
957 | #if HAS_SCOPESTACK_NAME |
|
|
958 | Safefree (PL_scopestack_name); |
|
|
959 | #endif |
580 | Safefree (PL_savestack); |
960 | Safefree (PL_savestack); |
581 | #if !PERL_VERSION_ATLEAST (5,9,0) |
961 | #if !PERL_VERSION_ATLEAST (5,10,0) |
582 | Safefree (PL_retstack); |
962 | Safefree (PL_retstack); |
583 | #endif |
963 | #endif |
584 | } |
964 | } |
|
|
965 | |
|
|
966 | #define CORO_RSS \ |
|
|
967 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
968 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
969 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
970 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
971 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
972 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
973 | rss += SYM (savestack_max) * sizeof (ANY); |
585 | |
974 | |
586 | static size_t |
975 | static size_t |
587 | coro_rss (pTHX_ struct coro *coro) |
976 | coro_rss (pTHX_ struct coro *coro) |
588 | { |
977 | { |
589 | size_t rss = sizeof (coro); |
978 | size_t rss = sizeof (*coro); |
590 | |
979 | |
591 | if (coro->mainstack) |
980 | if (coro->mainstack) |
592 | { |
981 | { |
593 | if (coro->flags & CF_RUNNING) |
982 | if (coro->flags & CF_RUNNING) |
594 | { |
983 | { |
595 | #define VAR(name,type)coro->name = PL_ ## name; |
984 | #define SYM(sym) PL_ ## sym |
596 | # include "state.h" |
985 | CORO_RSS; |
597 | #undef VAR |
986 | #undef SYM |
598 | } |
987 | } |
599 | |
988 | else |
600 | rss += sizeof (coro->curstackinfo); |
989 | { |
601 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
990 | #define SYM(sym) coro->slot->sym |
602 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
991 | CORO_RSS; |
603 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
992 | #undef SYM |
604 | rss += coro->tmps_max * sizeof (SV *); |
993 | } |
605 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
|
|
606 | rss += coro->scopestack_max * sizeof (I32); |
|
|
607 | rss += coro->savestack_max * sizeof (ANY); |
|
|
608 | |
|
|
609 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
610 | rss += coro->retstack_max * sizeof (OP *); |
|
|
611 | #endif |
|
|
612 | } |
994 | } |
613 | |
995 | |
614 | return rss; |
996 | return rss; |
615 | } |
997 | } |
616 | |
998 | |
617 | /** coroutine stack handling ************************************************/ |
999 | /** coroutine stack handling ************************************************/ |
618 | |
1000 | |
|
|
1001 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
1002 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
1003 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
1004 | |
|
|
1005 | /* apparently < 5.8.8 */ |
|
|
1006 | #ifndef MgPV_nolen_const |
|
|
1007 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
1008 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
1009 | (const char*)(mg)->mg_ptr) |
|
|
1010 | #endif |
|
|
1011 | |
|
|
1012 | /* |
|
|
1013 | * This overrides the default magic get method of %SIG elements. |
|
|
1014 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
1015 | * and instead of trying to save and restore the hash elements (extremely slow), |
|
|
1016 | * we just provide our own readback here. |
|
|
1017 | */ |
|
|
1018 | static int ecb_cold |
|
|
1019 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
1020 | { |
|
|
1021 | const char *s = MgPV_nolen_const (mg); |
|
|
1022 | |
|
|
1023 | if (*s == '_') |
|
|
1024 | { |
|
|
1025 | SV **svp = 0; |
|
|
1026 | |
|
|
1027 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1028 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1029 | |
|
|
1030 | if (svp) |
|
|
1031 | { |
|
|
1032 | SV *ssv; |
|
|
1033 | |
|
|
1034 | if (!*svp) |
|
|
1035 | ssv = &PL_sv_undef; |
|
|
1036 | else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */ |
|
|
1037 | ssv = sv_2mortal (newRV_inc (*svp)); |
|
|
1038 | else |
|
|
1039 | ssv = *svp; |
|
|
1040 | |
|
|
1041 | sv_setsv (sv, ssv); |
|
|
1042 | return 0; |
|
|
1043 | } |
|
|
1044 | } |
|
|
1045 | |
|
|
1046 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
1047 | } |
|
|
1048 | |
|
|
1049 | static int ecb_cold |
|
|
1050 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
1051 | { |
|
|
1052 | const char *s = MgPV_nolen_const (mg); |
|
|
1053 | |
|
|
1054 | if (*s == '_') |
|
|
1055 | { |
|
|
1056 | SV **svp = 0; |
|
|
1057 | |
|
|
1058 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1059 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1060 | |
|
|
1061 | if (svp) |
|
|
1062 | { |
|
|
1063 | SV *old = *svp; |
|
|
1064 | *svp = 0; |
|
|
1065 | SvREFCNT_dec (old); |
|
|
1066 | return 0; |
|
|
1067 | } |
|
|
1068 | } |
|
|
1069 | |
|
|
1070 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
1071 | } |
|
|
1072 | |
|
|
1073 | static int ecb_cold |
|
|
1074 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
1075 | { |
|
|
1076 | const char *s = MgPV_nolen_const (mg); |
|
|
1077 | |
|
|
1078 | if (*s == '_') |
|
|
1079 | { |
|
|
1080 | SV **svp = 0; |
|
|
1081 | |
|
|
1082 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
1083 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
1084 | |
|
|
1085 | if (svp) |
|
|
1086 | { |
|
|
1087 | SV *old = *svp; |
|
|
1088 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
|
|
1089 | SvREFCNT_dec (old); |
|
|
1090 | return 0; |
|
|
1091 | } |
|
|
1092 | } |
|
|
1093 | |
|
|
1094 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | static void |
|
|
1098 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
1099 | { |
|
|
1100 | /* kind of mega-hacky, but works */ |
|
|
1101 | ta->next = ta->prev = (struct coro *)ta; |
|
|
1102 | } |
|
|
1103 | |
619 | static void |
1104 | static int |
|
|
1105 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
1106 | { |
|
|
1107 | return 0; |
|
|
1108 | } |
|
|
1109 | |
|
|
1110 | static int |
|
|
1111 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
1112 | { |
|
|
1113 | return 1; |
|
|
1114 | } |
|
|
1115 | |
|
|
1116 | static UNOP init_perl_op; |
|
|
1117 | |
|
|
1118 | ecb_noinline static void /* noinline to keep it out of the transfer fast path */ |
620 | setup_coro (pTHX_ struct coro *coro) |
1119 | init_perl (pTHX_ struct coro *coro) |
621 | { |
1120 | { |
622 | /* |
1121 | /* |
623 | * emulate part of the perl startup here. |
1122 | * emulate part of the perl startup here. |
624 | */ |
1123 | */ |
625 | coro_init_stacks (aTHX); |
1124 | coro_init_stacks (aTHX); |
626 | |
1125 | |
627 | PL_runops = RUNOPS_DEFAULT; |
1126 | PL_runops = RUNOPS_DEFAULT; |
628 | PL_curcop = &PL_compiling; |
1127 | PL_curcop = &PL_compiling; |
629 | PL_in_eval = EVAL_NULL; |
1128 | PL_in_eval = EVAL_NULL; |
630 | PL_comppad = 0; |
1129 | PL_comppad = 0; |
|
|
1130 | PL_comppad_name = 0; |
|
|
1131 | PL_comppad_name_fill = 0; |
|
|
1132 | PL_comppad_name_floor = 0; |
631 | PL_curpm = 0; |
1133 | PL_curpm = 0; |
|
|
1134 | PL_curpad = 0; |
632 | PL_localizing = 0; |
1135 | PL_localizing = 0; |
633 | PL_dirty = 0; |
|
|
634 | PL_restartop = 0; |
1136 | PL_restartop = 0; |
|
|
1137 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
1138 | PL_parser = 0; |
|
|
1139 | #endif |
|
|
1140 | PL_hints = 0; |
|
|
1141 | |
|
|
1142 | /* recreate the die/warn hooks */ |
|
|
1143 | PL_diehook = SvREFCNT_inc (rv_diehook); |
|
|
1144 | PL_warnhook = SvREFCNT_inc (rv_warnhook); |
|
|
1145 | |
|
|
1146 | GvSV (PL_defgv) = newSV (0); |
|
|
1147 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
1148 | GvSV (PL_errgv) = newSV (0); |
|
|
1149 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
1150 | GvHV (PL_hintgv) = 0; |
|
|
1151 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
1152 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
635 | |
1153 | |
636 | { |
1154 | { |
637 | dSP; |
1155 | dSP; |
638 | LOGOP myop; |
1156 | UNOP myop; |
639 | |
1157 | |
640 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
641 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
642 | |
|
|
643 | Zero (&myop, 1, LOGOP); |
1158 | Zero (&myop, 1, UNOP); |
644 | myop.op_next = Nullop; |
1159 | myop.op_next = Nullop; |
|
|
1160 | myop.op_type = OP_ENTERSUB; |
645 | myop.op_flags = OPf_WANT_VOID; |
1161 | myop.op_flags = OPf_WANT_VOID; |
646 | |
1162 | |
647 | PUSHMARK (SP); |
1163 | PUSHMARK (SP); |
648 | XPUSHs (av_shift (GvAV (PL_defgv))); |
1164 | PUSHs ((SV *)coro->startcv); |
649 | PUTBACK; |
1165 | PUTBACK; |
650 | PL_op = (OP *)&myop; |
1166 | PL_op = (OP *)&myop; |
651 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1167 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
652 | SPAGAIN; |
|
|
653 | } |
1168 | } |
654 | |
1169 | |
655 | ENTER; /* necessary e.g. for dounwind */ |
1170 | /* this newly created coroutine might be run on an existing cctx which most |
656 | } |
1171 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
1172 | */ |
|
|
1173 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
1174 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
1175 | slf_frame.destroy = 0; |
657 | |
1176 | |
|
|
1177 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
1178 | init_perl_op.op_next = PL_op; |
|
|
1179 | init_perl_op.op_type = OP_ENTERSUB; |
|
|
1180 | init_perl_op.op_ppaddr = pp_slf; |
|
|
1181 | /* no flags etc. required, as an init function won't be called */ |
|
|
1182 | |
|
|
1183 | PL_op = (OP *)&init_perl_op; |
|
|
1184 | |
|
|
1185 | /* copy throw, in case it was set before init_perl */ |
|
|
1186 | CORO_THROW = coro->except; |
|
|
1187 | |
|
|
1188 | SWAP_SVS (coro); |
|
|
1189 | |
|
|
1190 | if (ecb_expect_false (enable_times)) |
|
|
1191 | { |
|
|
1192 | coro_times_update (); |
|
|
1193 | coro_times_sub (coro); |
|
|
1194 | } |
|
|
1195 | } |
|
|
1196 | |
658 | static void |
1197 | static void |
|
|
1198 | coro_unwind_stacks (pTHX) |
|
|
1199 | { |
|
|
1200 | if (!IN_DESTRUCT) |
|
|
1201 | { |
|
|
1202 | /* restore all saved variables and stuff */ |
|
|
1203 | LEAVE_SCOPE (0); |
|
|
1204 | assert (PL_tmps_floor == -1); |
|
|
1205 | |
|
|
1206 | /* free all temporaries */ |
|
|
1207 | FREETMPS; |
|
|
1208 | assert (PL_tmps_ix == -1); |
|
|
1209 | |
|
|
1210 | /* unwind all extra stacks */ |
|
|
1211 | POPSTACK_TO (PL_mainstack); |
|
|
1212 | |
|
|
1213 | /* unwind main stack */ |
|
|
1214 | dounwind (-1); |
|
|
1215 | } |
|
|
1216 | } |
|
|
1217 | |
|
|
1218 | static void |
|
|
1219 | destroy_perl (pTHX_ struct coro *coro) |
|
|
1220 | { |
|
|
1221 | SV *svf [9]; |
|
|
1222 | |
|
|
1223 | { |
|
|
1224 | SV *old_current = SvRV (coro_current); |
|
|
1225 | struct coro *current = SvSTATE (old_current); |
|
|
1226 | |
|
|
1227 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1228 | |
|
|
1229 | save_perl (aTHX_ current); |
|
|
1230 | |
|
|
1231 | /* this will cause transfer_check to croak on block*/ |
|
|
1232 | SvRV_set (coro_current, (SV *)coro->hv); |
|
|
1233 | |
|
|
1234 | load_perl (aTHX_ coro); |
|
|
1235 | |
|
|
1236 | coro_unwind_stacks (aTHX); |
|
|
1237 | |
|
|
1238 | /* restore swapped sv's */ |
|
|
1239 | SWAP_SVS (coro); |
|
|
1240 | |
|
|
1241 | coro_destruct_stacks (aTHX); |
|
|
1242 | |
|
|
1243 | /* now save some sv's to be free'd later */ |
|
|
1244 | svf [0] = GvSV (PL_defgv); |
|
|
1245 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1246 | svf [2] = GvSV (PL_errgv); |
|
|
1247 | svf [3] = (SV *)PL_defoutgv; |
|
|
1248 | svf [4] = PL_rs; |
|
|
1249 | svf [5] = GvSV (irsgv); |
|
|
1250 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1251 | svf [7] = PL_diehook; |
|
|
1252 | svf [8] = PL_warnhook; |
|
|
1253 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1254 | |
|
|
1255 | SvRV_set (coro_current, old_current); |
|
|
1256 | |
|
|
1257 | load_perl (aTHX_ current); |
|
|
1258 | } |
|
|
1259 | |
|
|
1260 | { |
|
|
1261 | unsigned int i; |
|
|
1262 | |
|
|
1263 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1264 | SvREFCNT_dec (svf [i]); |
|
|
1265 | |
|
|
1266 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1267 | SvREFCNT_dec (coro->rouse_cb); |
|
|
1268 | SvREFCNT_dec (coro->invoke_cb); |
|
|
1269 | SvREFCNT_dec (coro->invoke_av); |
|
|
1270 | } |
|
|
1271 | } |
|
|
1272 | |
|
|
1273 | ecb_inline void |
659 | free_coro_mortal (pTHX) |
1274 | free_coro_mortal (pTHX) |
660 | { |
1275 | { |
661 | if (coro_mortal) |
1276 | if (ecb_expect_true (coro_mortal)) |
662 | { |
1277 | { |
663 | SvREFCNT_dec (coro_mortal); |
1278 | SvREFCNT_dec ((SV *)coro_mortal); |
664 | coro_mortal = 0; |
1279 | coro_mortal = 0; |
665 | } |
1280 | } |
666 | } |
1281 | } |
667 | |
1282 | |
668 | static int |
1283 | static int |
669 | runops_trace (pTHX) |
1284 | runops_trace (pTHX) |
670 | { |
1285 | { |
671 | COP *oldcop = 0; |
1286 | COP *oldcop = 0; |
672 | int oldcxix = -2; |
1287 | int oldcxix = -2; |
673 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
674 | coro_cctx *cctx = coro->cctx; |
|
|
675 | |
1288 | |
676 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
1289 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
677 | { |
1290 | { |
678 | PERL_ASYNC_CHECK (); |
1291 | PERL_ASYNC_CHECK (); |
679 | |
1292 | |
680 | if (cctx->flags & CC_TRACE_ALL) |
1293 | if (cctx_current->flags & CC_TRACE_ALL) |
681 | { |
1294 | { |
682 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
1295 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
683 | { |
1296 | { |
684 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1297 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
685 | SV **bot, **top; |
1298 | SV **bot, **top; |
686 | AV *av = newAV (); /* return values */ |
1299 | AV *av = newAV (); /* return values */ |
687 | SV **cb; |
1300 | SV **cb; |
… | |
… | |
695 | bot = PL_stack_base + cx->blk_oldsp + 1; |
1308 | bot = PL_stack_base + cx->blk_oldsp + 1; |
696 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
1309 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
697 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
1310 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
698 | : bot; |
1311 | : bot; |
699 | |
1312 | |
|
|
1313 | av_extend (av, top - bot); |
700 | while (bot < top) |
1314 | while (bot < top) |
701 | av_push (av, SvREFCNT_inc (*bot++)); |
1315 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
702 | |
1316 | |
703 | PL_runops = RUNOPS_DEFAULT; |
1317 | PL_runops = RUNOPS_DEFAULT; |
704 | ENTER; |
1318 | ENTER; |
705 | SAVETMPS; |
1319 | SAVETMPS; |
706 | EXTEND (SP, 3); |
1320 | EXTEND (SP, 3); |
… | |
… | |
723 | |
1337 | |
724 | if (PL_curcop != &PL_compiling) |
1338 | if (PL_curcop != &PL_compiling) |
725 | { |
1339 | { |
726 | SV **cb; |
1340 | SV **cb; |
727 | |
1341 | |
728 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1342 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
729 | { |
1343 | { |
730 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1344 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
731 | |
1345 | |
732 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1346 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
733 | { |
1347 | { |
734 | runops_proc_t old_runops = PL_runops; |
|
|
735 | dSP; |
1348 | dSP; |
736 | GV *gv = CvGV (cx->blk_sub.cv); |
1349 | GV *gv = CvGV (cx->blk_sub.cv); |
737 | SV *fullname = sv_2mortal (newSV (0)); |
1350 | SV *fullname = sv_2mortal (newSV (0)); |
738 | |
1351 | |
739 | if (isGV (gv)) |
1352 | if (isGV (gv)) |
… | |
… | |
744 | SAVETMPS; |
1357 | SAVETMPS; |
745 | EXTEND (SP, 3); |
1358 | EXTEND (SP, 3); |
746 | PUSHMARK (SP); |
1359 | PUSHMARK (SP); |
747 | PUSHs (&PL_sv_yes); |
1360 | PUSHs (&PL_sv_yes); |
748 | PUSHs (fullname); |
1361 | PUSHs (fullname); |
749 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1362 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
750 | PUTBACK; |
1363 | PUTBACK; |
751 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1364 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
752 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1365 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
753 | SPAGAIN; |
1366 | SPAGAIN; |
754 | FREETMPS; |
1367 | FREETMPS; |
… | |
… | |
757 | } |
1370 | } |
758 | |
1371 | |
759 | oldcxix = cxstack_ix; |
1372 | oldcxix = cxstack_ix; |
760 | } |
1373 | } |
761 | |
1374 | |
762 | if (cctx->flags & CC_TRACE_LINE) |
1375 | if (cctx_current->flags & CC_TRACE_LINE) |
763 | { |
1376 | { |
764 | dSP; |
1377 | dSP; |
765 | |
1378 | |
766 | PL_runops = RUNOPS_DEFAULT; |
1379 | PL_runops = RUNOPS_DEFAULT; |
767 | ENTER; |
1380 | ENTER; |
… | |
… | |
786 | |
1399 | |
787 | TAINT_NOT; |
1400 | TAINT_NOT; |
788 | return 0; |
1401 | return 0; |
789 | } |
1402 | } |
790 | |
1403 | |
791 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1404 | static struct CoroSLF cctx_ssl_frame; |
792 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
793 | /* during execution of a perl program */ |
|
|
794 | static void NOINLINE |
|
|
795 | prepare_cctx (pTHX_ coro_cctx *cctx) |
|
|
796 | { |
|
|
797 | dSP; |
|
|
798 | LOGOP myop; |
|
|
799 | |
1405 | |
|
|
1406 | static void |
|
|
1407 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1408 | { |
|
|
1409 | ta->prev = 0; |
|
|
1410 | } |
|
|
1411 | |
|
|
1412 | static int |
|
|
1413 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1414 | { |
|
|
1415 | *frame = cctx_ssl_frame; |
|
|
1416 | |
|
|
1417 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1418 | } |
|
|
1419 | |
|
|
1420 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
|
|
1421 | static void ecb_noinline |
|
|
1422 | cctx_prepare (pTHX) |
|
|
1423 | { |
800 | PL_top_env = &PL_start_env; |
1424 | PL_top_env = &PL_start_env; |
801 | |
1425 | |
802 | if (cctx->flags & CC_TRACE) |
1426 | if (cctx_current->flags & CC_TRACE) |
803 | PL_runops = runops_trace; |
1427 | PL_runops = runops_trace; |
804 | |
1428 | |
805 | Zero (&myop, 1, LOGOP); |
1429 | /* we already must be executing an SLF op, there is no other valid way |
806 | myop.op_next = PL_op; |
1430 | * that can lead to creation of a new cctx */ |
807 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1431 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1432 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
808 | |
1433 | |
809 | PUSHMARK (SP); |
1434 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
810 | EXTEND (SP, 2); |
1435 | cctx_ssl_frame = slf_frame; |
811 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1436 | |
812 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1437 | slf_frame.prepare = slf_prepare_set_stacklevel; |
813 | PUTBACK; |
1438 | slf_frame.check = slf_check_set_stacklevel; |
814 | PL_op = (OP *)&myop; |
1439 | } |
815 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1440 | |
816 | SPAGAIN; |
1441 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1442 | ecb_inline void |
|
|
1443 | transfer_tail (pTHX) |
|
|
1444 | { |
|
|
1445 | free_coro_mortal (aTHX); |
|
|
1446 | } |
|
|
1447 | |
|
|
1448 | /* try to exit the same way perl's main function would do */ |
|
|
1449 | /* we do not bother resetting the environment or other things *7 |
|
|
1450 | /* that are not, uhm, essential */ |
|
|
1451 | /* this obviously also doesn't work when perl is embedded */ |
|
|
1452 | static void ecb_noinline ecb_cold |
|
|
1453 | perlish_exit (pTHX) |
|
|
1454 | { |
|
|
1455 | int exitstatus = perl_destruct (PL_curinterp); |
|
|
1456 | perl_free (PL_curinterp); |
|
|
1457 | exit (exitstatus); |
817 | } |
1458 | } |
818 | |
1459 | |
819 | /* |
1460 | /* |
820 | * this is a _very_ stripped down perl interpreter ;) |
1461 | * this is a _very_ stripped down perl interpreter ;) |
821 | */ |
1462 | */ |
822 | static void |
1463 | static void |
823 | coro_run (void *arg) |
1464 | cctx_run (void *arg) |
824 | { |
1465 | { |
|
|
1466 | #ifdef USE_ITHREADS |
|
|
1467 | # if CORO_PTHREAD |
|
|
1468 | PERL_SET_CONTEXT (coro_thx); |
|
|
1469 | # endif |
|
|
1470 | #endif |
|
|
1471 | { |
825 | dTHX; |
1472 | dTHX; |
826 | |
1473 | |
827 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
1474 | /* normally we would need to skip the entersub here */ |
828 | UNLOCK; |
1475 | /* not doing so will re-execute it, which is exactly what we want */ |
829 | |
|
|
830 | /* we now skip the entersub that lead to transfer() */ |
|
|
831 | PL_op = PL_op->op_next; |
1476 | /* PL_nop = PL_nop->op_next */ |
832 | |
1477 | |
833 | /* inject a fake subroutine call to cctx_init */ |
1478 | /* inject a fake subroutine call to cctx_init */ |
834 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
1479 | cctx_prepare (aTHX); |
835 | |
1480 | |
|
|
1481 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1482 | transfer_tail (aTHX); |
|
|
1483 | |
836 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1484 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
837 | PL_restartop = PL_op; |
1485 | PL_restartop = PL_op; |
838 | perl_run (PL_curinterp); |
1486 | perl_run (PL_curinterp); |
839 | |
|
|
840 | /* |
1487 | /* |
|
|
1488 | * Unfortunately, there is no way to get at the return values of the |
|
|
1489 | * coro body here, as perl_run destroys these. Likewise, we cannot catch |
|
|
1490 | * runtime errors here, as this is just a random interpreter, not a thread. |
|
|
1491 | */ |
|
|
1492 | |
|
|
1493 | /* |
841 | * If perl-run returns we assume exit() was being called or the coro |
1494 | * If perl-run returns we assume exit() was being called or the coro |
842 | * fell off the end, which seems to be the only valid (non-bug) |
1495 | * fell off the end, which seems to be the only valid (non-bug) |
843 | * reason for perl_run to return. We try to exit by jumping to the |
1496 | * reason for perl_run to return. We try to mimic whatever perl is normally |
844 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1497 | * doing in that case. YMMV. |
845 | * coroutine as Coro has no such concept |
|
|
846 | */ |
1498 | */ |
847 | PL_top_env = main_top_env; |
1499 | perlish_exit (aTHX); |
848 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1500 | } |
849 | } |
1501 | } |
850 | |
1502 | |
851 | static coro_cctx * |
1503 | static coro_cctx * |
852 | cctx_new () |
1504 | cctx_new (void) |
853 | { |
1505 | { |
854 | coro_cctx *cctx; |
1506 | coro_cctx *cctx; |
|
|
1507 | |
|
|
1508 | ++cctx_count; |
|
|
1509 | New (0, cctx, 1, coro_cctx); |
|
|
1510 | |
|
|
1511 | cctx->gen = cctx_gen; |
|
|
1512 | cctx->flags = 0; |
|
|
1513 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1514 | |
|
|
1515 | return cctx; |
|
|
1516 | } |
|
|
1517 | |
|
|
1518 | /* create a new cctx only suitable as source */ |
|
|
1519 | static coro_cctx * |
|
|
1520 | cctx_new_empty (void) |
|
|
1521 | { |
|
|
1522 | coro_cctx *cctx = cctx_new (); |
|
|
1523 | |
|
|
1524 | cctx->sptr = 0; |
|
|
1525 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1526 | |
|
|
1527 | return cctx; |
|
|
1528 | } |
|
|
1529 | |
|
|
1530 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1531 | static coro_cctx * |
|
|
1532 | cctx_new_run (void) |
|
|
1533 | { |
|
|
1534 | coro_cctx *cctx = cctx_new (); |
855 | void *stack_start; |
1535 | void *stack_start; |
856 | size_t stack_size; |
1536 | size_t stack_size; |
857 | |
1537 | |
858 | ++cctx_count; |
|
|
859 | |
|
|
860 | Newz (0, cctx, 1, coro_cctx); |
|
|
861 | |
|
|
862 | #if HAVE_MMAP |
1538 | #if HAVE_MMAP |
863 | |
|
|
864 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1539 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
865 | /* mmap supposedly does allocate-on-write for us */ |
1540 | /* mmap supposedly does allocate-on-write for us */ |
866 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1541 | cctx->sptr = mmap (0, cctx->ssize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS, -1, 0); |
867 | |
1542 | |
868 | if (cctx->sptr != (void *)-1) |
1543 | if (cctx->sptr != (void *)-1) |
869 | { |
1544 | { |
870 | # if CORO_STACKGUARD |
1545 | #if CORO_STACKGUARD |
871 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1546 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
872 | # endif |
1547 | #endif |
873 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1548 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
874 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1549 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
875 | cctx->flags |= CC_MAPPED; |
1550 | cctx->flags |= CC_MAPPED; |
876 | } |
1551 | } |
877 | else |
1552 | else |
878 | #endif |
1553 | #endif |
879 | { |
1554 | { |
880 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
1555 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
881 | New (0, cctx->sptr, coro_stacksize, long); |
1556 | New (0, cctx->sptr, cctx_stacksize, long); |
882 | |
1557 | |
883 | if (!cctx->sptr) |
1558 | if (!cctx->sptr) |
884 | { |
1559 | { |
885 | perror ("FATAL: unable to allocate stack for coroutine"); |
1560 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
886 | _exit (EXIT_FAILURE); |
1561 | _exit (EXIT_FAILURE); |
887 | } |
1562 | } |
888 | |
1563 | |
889 | stack_start = cctx->sptr; |
1564 | stack_start = cctx->sptr; |
890 | stack_size = cctx->ssize; |
1565 | stack_size = cctx->ssize; |
891 | } |
1566 | } |
892 | |
1567 | |
893 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1568 | #if CORO_USE_VALGRIND |
|
|
1569 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1570 | #endif |
|
|
1571 | |
894 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
1572 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
895 | |
1573 | |
896 | return cctx; |
1574 | return cctx; |
897 | } |
1575 | } |
898 | |
1576 | |
899 | static void |
1577 | static void |
900 | cctx_destroy (coro_cctx *cctx) |
1578 | cctx_destroy (coro_cctx *cctx) |
901 | { |
1579 | { |
902 | if (!cctx) |
1580 | if (!cctx) |
903 | return; |
1581 | return; |
904 | |
1582 | |
|
|
1583 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); |
|
|
1584 | |
905 | --cctx_count; |
1585 | --cctx_count; |
|
|
1586 | coro_destroy (&cctx->cctx); |
906 | |
1587 | |
|
|
1588 | /* coro_transfer creates new, empty cctx's */ |
|
|
1589 | if (cctx->sptr) |
|
|
1590 | { |
907 | #if CORO_USE_VALGRIND |
1591 | #if CORO_USE_VALGRIND |
908 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1592 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
909 | #endif |
1593 | #endif |
910 | |
1594 | |
911 | #if HAVE_MMAP |
1595 | #if HAVE_MMAP |
912 | if (cctx->flags & CC_MAPPED) |
1596 | if (cctx->flags & CC_MAPPED) |
913 | munmap (cctx->sptr, cctx->ssize); |
1597 | munmap (cctx->sptr, cctx->ssize); |
914 | else |
1598 | else |
915 | #endif |
1599 | #endif |
916 | Safefree (cctx->sptr); |
1600 | Safefree (cctx->sptr); |
|
|
1601 | } |
917 | |
1602 | |
918 | Safefree (cctx); |
1603 | Safefree (cctx); |
919 | } |
1604 | } |
|
|
1605 | |
|
|
1606 | /* wether this cctx should be destructed */ |
|
|
1607 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
920 | |
1608 | |
921 | static coro_cctx * |
1609 | static coro_cctx * |
922 | cctx_get (pTHX) |
1610 | cctx_get (pTHX) |
923 | { |
1611 | { |
924 | while (cctx_first) |
1612 | while (ecb_expect_true (cctx_first)) |
925 | { |
1613 | { |
926 | coro_cctx *cctx = cctx_first; |
1614 | coro_cctx *cctx = cctx_first; |
927 | cctx_first = cctx->next; |
1615 | cctx_first = cctx->next; |
928 | --cctx_idle; |
1616 | --cctx_idle; |
929 | |
1617 | |
930 | if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE)) |
1618 | if (ecb_expect_true (!CCTX_EXPIRED (cctx))) |
931 | return cctx; |
1619 | return cctx; |
932 | |
1620 | |
933 | cctx_destroy (cctx); |
1621 | cctx_destroy (cctx); |
934 | } |
1622 | } |
935 | |
1623 | |
936 | return cctx_new (); |
1624 | return cctx_new_run (); |
937 | } |
1625 | } |
938 | |
1626 | |
939 | static void |
1627 | static void |
940 | cctx_put (coro_cctx *cctx) |
1628 | cctx_put (coro_cctx *cctx) |
941 | { |
1629 | { |
|
|
1630 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1631 | |
942 | /* free another cctx if overlimit */ |
1632 | /* free another cctx if overlimit */ |
943 | if (cctx_idle >= MAX_IDLE_CCTX) |
1633 | if (ecb_expect_false (cctx_idle >= cctx_max_idle)) |
944 | { |
1634 | { |
945 | coro_cctx *first = cctx_first; |
1635 | coro_cctx *first = cctx_first; |
946 | cctx_first = first->next; |
1636 | cctx_first = first->next; |
947 | --cctx_idle; |
1637 | --cctx_idle; |
948 | |
1638 | |
… | |
… | |
954 | cctx_first = cctx; |
1644 | cctx_first = cctx; |
955 | } |
1645 | } |
956 | |
1646 | |
957 | /** coroutine switching *****************************************************/ |
1647 | /** coroutine switching *****************************************************/ |
958 | |
1648 | |
959 | static void NOINLINE |
1649 | static void |
960 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1650 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
961 | { |
1651 | { |
962 | if (prev != next) |
1652 | /* TODO: throwing up here is considered harmful */ |
|
|
1653 | |
|
|
1654 | if (ecb_expect_true (prev != next)) |
963 | { |
1655 | { |
964 | if (!(prev->flags & (CF_RUNNING | CF_NEW))) |
1656 | if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
965 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1657 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
966 | |
1658 | |
967 | if (next->flags & CF_RUNNING) |
1659 | if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED))) |
968 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
969 | |
|
|
970 | if (next->flags & CF_DESTROYED) |
|
|
971 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1660 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
972 | |
1661 | |
|
|
1662 | #if !PERL_VERSION_ATLEAST (5,10,0) |
973 | if (PL_lex_state != LEX_NOTPARSING) |
1663 | if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING)) |
974 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
1664 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1665 | #endif |
975 | } |
1666 | } |
976 | } |
1667 | } |
977 | |
1668 | |
978 | /* always use the TRANSFER macro */ |
1669 | /* always use the TRANSFER macro */ |
979 | static void NOINLINE |
1670 | static void ecb_noinline /* noinline so we have a fixed stackframe */ |
980 | transfer (pTHX_ struct coro *prev, struct coro *next) |
1671 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
981 | { |
1672 | { |
982 | dSTACKLEVEL; |
1673 | dSTACKLEVEL; |
983 | |
1674 | |
984 | /* sometimes transfer is only called to set idle_sp */ |
1675 | /* sometimes transfer is only called to set idle_sp */ |
985 | if (!next) |
1676 | if (ecb_expect_false (!prev)) |
986 | { |
1677 | { |
987 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1678 | cctx_current->idle_sp = STACKLEVEL; |
988 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1679 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
989 | } |
|
|
990 | else if (prev != next) |
|
|
991 | { |
1680 | } |
|
|
1681 | else if (ecb_expect_true (prev != next)) |
|
|
1682 | { |
992 | coro_cctx *prev__cctx; |
1683 | coro_cctx *cctx_prev; |
993 | |
1684 | |
994 | if (prev->flags & CF_NEW) |
1685 | if (ecb_expect_false (prev->flags & CF_NEW)) |
995 | { |
1686 | { |
996 | /* create a new empty context */ |
1687 | /* create a new empty/source context */ |
997 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
998 | prev->flags &= ~CF_NEW; |
1688 | prev->flags &= ~CF_NEW; |
999 | prev->flags |= CF_RUNNING; |
1689 | prev->flags |= CF_RUNNING; |
1000 | } |
1690 | } |
1001 | |
1691 | |
1002 | prev->flags &= ~CF_RUNNING; |
1692 | prev->flags &= ~CF_RUNNING; |
1003 | next->flags |= CF_RUNNING; |
1693 | next->flags |= CF_RUNNING; |
1004 | |
1694 | |
1005 | LOCK; |
1695 | /* first get rid of the old state */ |
|
|
1696 | save_perl (aTHX_ prev); |
1006 | |
1697 | |
1007 | if (next->flags & CF_NEW) |
1698 | if (ecb_expect_false (next->flags & CF_NEW)) |
1008 | { |
1699 | { |
1009 | /* need to start coroutine */ |
1700 | /* need to start coroutine */ |
1010 | next->flags &= ~CF_NEW; |
1701 | next->flags &= ~CF_NEW; |
1011 | /* first get rid of the old state */ |
|
|
1012 | save_perl (aTHX_ prev); |
|
|
1013 | /* setup coroutine call */ |
1702 | /* setup coroutine call */ |
1014 | setup_coro (aTHX_ next); |
1703 | init_perl (aTHX_ next); |
1015 | } |
1704 | } |
1016 | else |
1705 | else |
|
|
1706 | load_perl (aTHX_ next); |
|
|
1707 | |
|
|
1708 | /* possibly untie and reuse the cctx */ |
|
|
1709 | if (ecb_expect_true ( |
|
|
1710 | cctx_current->idle_sp == STACKLEVEL |
|
|
1711 | && !(cctx_current->flags & CC_TRACE) |
|
|
1712 | && !force_cctx |
|
|
1713 | )) |
1017 | { |
1714 | { |
1018 | /* coroutine already started */ |
1715 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1019 | save_perl (aTHX_ prev); |
1716 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1020 | load_perl (aTHX_ next); |
1717 | |
|
|
1718 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
|
|
1719 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
|
|
1720 | if (ecb_expect_false (CCTX_EXPIRED (cctx_current))) |
|
|
1721 | if (ecb_expect_true (!next->cctx)) |
|
|
1722 | next->cctx = cctx_get (aTHX); |
|
|
1723 | |
|
|
1724 | cctx_put (cctx_current); |
1021 | } |
1725 | } |
|
|
1726 | else |
|
|
1727 | prev->cctx = cctx_current; |
1022 | |
1728 | |
1023 | prev__cctx = prev->cctx; |
1729 | ++next->usecount; |
1024 | |
1730 | |
1025 | /* possibly "free" the cctx */ |
1731 | cctx_prev = cctx_current; |
1026 | if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)) |
1732 | cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
|
|
1733 | |
|
|
1734 | next->cctx = 0; |
|
|
1735 | |
|
|
1736 | if (ecb_expect_false (cctx_prev != cctx_current)) |
1027 | { |
1737 | { |
1028 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1738 | cctx_prev->top_env = PL_top_env; |
1029 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1739 | PL_top_env = cctx_current->top_env; |
1030 | |
1740 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1031 | prev->cctx = 0; |
|
|
1032 | |
|
|
1033 | cctx_put (prev__cctx); |
|
|
1034 | } |
1741 | } |
1035 | |
1742 | |
1036 | ++next->usecount; |
1743 | transfer_tail (aTHX); |
1037 | |
|
|
1038 | if (!next->cctx) |
|
|
1039 | next->cctx = cctx_get (aTHX); |
|
|
1040 | |
|
|
1041 | if (prev__cctx != next->cctx) |
|
|
1042 | { |
|
|
1043 | prev__cctx->top_env = PL_top_env; |
|
|
1044 | PL_top_env = next->cctx->top_env; |
|
|
1045 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | free_coro_mortal (aTHX); |
|
|
1049 | UNLOCK; |
|
|
1050 | } |
1744 | } |
1051 | } |
1745 | } |
1052 | |
1746 | |
1053 | struct transfer_args |
|
|
1054 | { |
|
|
1055 | struct coro *prev, *next; |
|
|
1056 | }; |
|
|
1057 | |
|
|
1058 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
1747 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1059 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1748 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1060 | |
1749 | |
1061 | /** high level stuff ********************************************************/ |
1750 | /** high level stuff ********************************************************/ |
1062 | |
1751 | |
|
|
1752 | /* this function is actually Coro, not Coro::State, but we call it from here */ |
|
|
1753 | /* because it is convenient - but it hasn't been declared yet for that reason */ |
1063 | static int |
1754 | static void |
|
|
1755 | coro_call_on_destroy (pTHX_ struct coro *coro); |
|
|
1756 | |
|
|
1757 | static void |
1064 | coro_state_destroy (pTHX_ struct coro *coro) |
1758 | coro_state_destroy (pTHX_ struct coro *coro) |
1065 | { |
1759 | { |
1066 | if (coro->flags & CF_DESTROYED) |
1760 | if (coro->flags & CF_ZOMBIE) |
1067 | return 0; |
1761 | return; |
1068 | |
1762 | |
|
|
1763 | slf_destroy (aTHX_ coro); |
|
|
1764 | |
1069 | coro->flags |= CF_DESTROYED; |
1765 | coro->flags |= CF_ZOMBIE; |
1070 | |
1766 | |
1071 | if (coro->flags & CF_READY) |
1767 | if (coro->flags & CF_READY) |
1072 | { |
1768 | { |
1073 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1769 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1074 | /* alternative: look through all ready queues and remove the coro */ |
1770 | /* alternative: look through all ready queues and remove the coro */ |
1075 | LOCK; |
|
|
1076 | --coro_nready; |
1771 | --coro_nready; |
1077 | UNLOCK; |
|
|
1078 | } |
1772 | } |
1079 | else |
1773 | else |
1080 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1774 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1081 | |
|
|
1082 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
1083 | { |
|
|
1084 | struct coro temp; |
|
|
1085 | |
|
|
1086 | assert (!(coro->flags & CF_RUNNING)); |
|
|
1087 | |
|
|
1088 | Zero (&temp, 1, struct coro); |
|
|
1089 | temp.save = CORO_SAVE_ALL; |
|
|
1090 | |
|
|
1091 | if (coro->flags & CF_RUNNING) |
|
|
1092 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1093 | |
|
|
1094 | save_perl (aTHX_ &temp); |
|
|
1095 | load_perl (aTHX_ coro); |
|
|
1096 | |
|
|
1097 | coro_destroy_stacks (aTHX); |
|
|
1098 | |
|
|
1099 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
|
|
1100 | |
|
|
1101 | coro->mainstack = 0; |
|
|
1102 | } |
|
|
1103 | |
|
|
1104 | cctx_destroy (coro->cctx); |
|
|
1105 | SvREFCNT_dec (coro->args); |
|
|
1106 | |
1775 | |
1107 | if (coro->next) coro->next->prev = coro->prev; |
1776 | if (coro->next) coro->next->prev = coro->prev; |
1108 | if (coro->prev) coro->prev->next = coro->next; |
1777 | if (coro->prev) coro->prev->next = coro->next; |
1109 | if (coro == coro_first) coro_first = coro->next; |
1778 | if (coro == coro_first) coro_first = coro->next; |
1110 | |
1779 | |
1111 | return 1; |
1780 | if (coro->mainstack |
|
|
1781 | && coro->mainstack != main_mainstack |
|
|
1782 | && coro->slot |
|
|
1783 | && !PL_dirty) |
|
|
1784 | destroy_perl (aTHX_ coro); |
|
|
1785 | |
|
|
1786 | cctx_destroy (coro->cctx); |
|
|
1787 | SvREFCNT_dec (coro->startcv); |
|
|
1788 | SvREFCNT_dec (coro->args); |
|
|
1789 | SvREFCNT_dec (coro->swap_sv); |
|
|
1790 | SvREFCNT_dec (CORO_THROW); |
|
|
1791 | |
|
|
1792 | coro_call_on_destroy (aTHX_ coro); |
|
|
1793 | |
|
|
1794 | /* more destruction mayhem in coro_state_free */ |
1112 | } |
1795 | } |
1113 | |
1796 | |
1114 | static int |
1797 | static int |
1115 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1798 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1116 | { |
1799 | { |
1117 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1800 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1118 | mg->mg_ptr = 0; |
1801 | mg->mg_ptr = 0; |
1119 | |
1802 | |
1120 | coro->hv = 0; |
|
|
1121 | |
|
|
1122 | if (--coro->refcnt < 0) |
|
|
1123 | { |
|
|
1124 | coro_state_destroy (aTHX_ coro); |
1803 | coro_state_destroy (aTHX_ coro); |
|
|
1804 | SvREFCNT_dec (coro->on_destroy); |
|
|
1805 | SvREFCNT_dec (coro->status); |
|
|
1806 | |
1125 | Safefree (coro); |
1807 | Safefree (coro); |
1126 | } |
|
|
1127 | |
1808 | |
1128 | return 0; |
1809 | return 0; |
1129 | } |
1810 | } |
1130 | |
1811 | |
1131 | static int |
1812 | static int ecb_cold |
1132 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1813 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1133 | { |
1814 | { |
1134 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1815 | /* called when perl clones the current process the slow way (windows process emulation) */ |
1135 | |
1816 | /* WE SIMply nuke the pointers in the copy, causing perl to croak */ |
1136 | ++coro->refcnt; |
1817 | mg->mg_ptr = 0; |
|
|
1818 | mg->mg_virtual = 0; |
1137 | |
1819 | |
1138 | return 0; |
1820 | return 0; |
1139 | } |
1821 | } |
1140 | |
1822 | |
1141 | static MGVTBL coro_state_vtbl = { |
1823 | static MGVTBL coro_state_vtbl = { |
… | |
… | |
1148 | # define MGf_DUP 0 |
1830 | # define MGf_DUP 0 |
1149 | #endif |
1831 | #endif |
1150 | }; |
1832 | }; |
1151 | |
1833 | |
1152 | static void |
1834 | static void |
1153 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1835 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1154 | { |
1836 | { |
1155 | ta->prev = SvSTATE (prev_sv); |
1837 | ta->prev = SvSTATE (prev_sv); |
1156 | ta->next = SvSTATE (next_sv); |
1838 | ta->next = SvSTATE (next_sv); |
1157 | TRANSFER_CHECK (*ta); |
1839 | TRANSFER_CHECK (*ta); |
1158 | } |
1840 | } |
1159 | |
1841 | |
1160 | static void |
1842 | static void |
1161 | api_transfer (SV *prev_sv, SV *next_sv) |
1843 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
|
|
1844 | { |
|
|
1845 | struct coro_transfer_args ta; |
|
|
1846 | |
|
|
1847 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
|
|
1848 | TRANSFER (ta, 1); |
|
|
1849 | } |
|
|
1850 | |
|
|
1851 | /** Coro ********************************************************************/ |
|
|
1852 | |
|
|
1853 | ecb_inline void |
|
|
1854 | coro_enq (pTHX_ struct coro *coro) |
|
|
1855 | { |
|
|
1856 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
|
|
1857 | |
|
|
1858 | SvREFCNT_inc_NN (coro->hv); |
|
|
1859 | |
|
|
1860 | coro->next_ready = 0; |
|
|
1861 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1862 | ready [1] = coro; |
|
|
1863 | } |
|
|
1864 | |
|
|
1865 | ecb_inline struct coro * |
|
|
1866 | coro_deq (pTHX) |
|
|
1867 | { |
|
|
1868 | int prio; |
|
|
1869 | |
|
|
1870 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
|
|
1871 | { |
|
|
1872 | struct coro **ready = coro_ready [prio]; |
|
|
1873 | |
|
|
1874 | if (ready [0]) |
|
|
1875 | { |
|
|
1876 | struct coro *coro = ready [0]; |
|
|
1877 | ready [0] = coro->next_ready; |
|
|
1878 | return coro; |
|
|
1879 | } |
|
|
1880 | } |
|
|
1881 | |
|
|
1882 | return 0; |
|
|
1883 | } |
|
|
1884 | |
|
|
1885 | static void |
|
|
1886 | invoke_sv_ready_hook_helper (void) |
1162 | { |
1887 | { |
1163 | dTHX; |
1888 | dTHX; |
1164 | struct transfer_args ta; |
1889 | dSP; |
1165 | |
1890 | |
1166 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1891 | ENTER; |
1167 | TRANSFER (ta); |
1892 | SAVETMPS; |
|
|
1893 | |
|
|
1894 | PUSHMARK (SP); |
|
|
1895 | PUTBACK; |
|
|
1896 | call_sv (coro_readyhook, G_VOID | G_DISCARD); |
|
|
1897 | |
|
|
1898 | FREETMPS; |
|
|
1899 | LEAVE; |
1168 | } |
1900 | } |
1169 | |
1901 | |
1170 | static int |
1902 | static int |
1171 | api_save (SV *coro_sv, int new_save) |
1903 | api_ready (pTHX_ SV *coro_sv) |
1172 | { |
1904 | { |
1173 | dTHX; |
|
|
1174 | struct coro *coro = SvSTATE (coro_sv); |
1905 | struct coro *coro = SvSTATE (coro_sv); |
1175 | int old_save = coro->save; |
|
|
1176 | |
|
|
1177 | if (new_save >= 0) |
|
|
1178 | coro->save = new_save; |
|
|
1179 | |
|
|
1180 | return old_save; |
|
|
1181 | } |
|
|
1182 | |
|
|
1183 | /** Coro ********************************************************************/ |
|
|
1184 | |
|
|
1185 | static void |
|
|
1186 | coro_enq (pTHX_ SV *coro_sv) |
|
|
1187 | { |
|
|
1188 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
|
|
1189 | } |
|
|
1190 | |
|
|
1191 | static SV * |
|
|
1192 | coro_deq (pTHX_ int min_prio) |
|
|
1193 | { |
|
|
1194 | int prio = PRIO_MAX - PRIO_MIN; |
|
|
1195 | |
|
|
1196 | min_prio -= PRIO_MIN; |
|
|
1197 | if (min_prio < 0) |
|
|
1198 | min_prio = 0; |
|
|
1199 | |
|
|
1200 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
|
|
1201 | if (AvFILLp (coro_ready [prio]) >= 0) |
|
|
1202 | return av_shift (coro_ready [prio]); |
|
|
1203 | |
|
|
1204 | return 0; |
|
|
1205 | } |
|
|
1206 | |
|
|
1207 | static int |
|
|
1208 | api_ready (SV *coro_sv) |
|
|
1209 | { |
|
|
1210 | dTHX; |
|
|
1211 | struct coro *coro; |
|
|
1212 | |
|
|
1213 | if (SvROK (coro_sv)) |
|
|
1214 | coro_sv = SvRV (coro_sv); |
|
|
1215 | |
|
|
1216 | coro = SvSTATE (coro_sv); |
|
|
1217 | |
1906 | |
1218 | if (coro->flags & CF_READY) |
1907 | if (coro->flags & CF_READY) |
1219 | return 0; |
1908 | return 0; |
1220 | |
1909 | |
1221 | coro->flags |= CF_READY; |
1910 | coro->flags |= CF_READY; |
1222 | |
1911 | |
1223 | LOCK; |
1912 | coro_enq (aTHX_ coro); |
1224 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1913 | |
1225 | ++coro_nready; |
1914 | if (!coro_nready++) |
1226 | UNLOCK; |
1915 | if (coroapi.readyhook) |
|
|
1916 | coroapi.readyhook (); |
1227 | |
1917 | |
1228 | return 1; |
1918 | return 1; |
1229 | } |
1919 | } |
1230 | |
1920 | |
1231 | static int |
1921 | static int |
1232 | api_is_ready (SV *coro_sv) |
1922 | api_is_ready (pTHX_ SV *coro_sv) |
1233 | { |
1923 | { |
1234 | dTHX; |
|
|
1235 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1924 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1236 | } |
1925 | } |
1237 | |
1926 | |
1238 | static void |
1927 | /* expects to own a reference to next->hv */ |
|
|
1928 | ecb_inline void |
1239 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1929 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1240 | { |
1930 | { |
1241 | SV *prev_sv, *next_sv; |
|
|
1242 | |
|
|
1243 | for (;;) |
|
|
1244 | { |
|
|
1245 | LOCK; |
|
|
1246 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1247 | |
|
|
1248 | /* nothing to schedule: call the idle handler */ |
|
|
1249 | if (!next_sv) |
|
|
1250 | { |
|
|
1251 | dSP; |
|
|
1252 | UNLOCK; |
|
|
1253 | |
|
|
1254 | ENTER; |
|
|
1255 | SAVETMPS; |
|
|
1256 | |
|
|
1257 | PUSHMARK (SP); |
|
|
1258 | PUTBACK; |
|
|
1259 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1260 | |
|
|
1261 | FREETMPS; |
|
|
1262 | LEAVE; |
|
|
1263 | continue; |
|
|
1264 | } |
|
|
1265 | |
|
|
1266 | ta->next = SvSTATE (next_sv); |
|
|
1267 | |
|
|
1268 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1269 | if (ta->next->flags & CF_DESTROYED) |
|
|
1270 | { |
|
|
1271 | UNLOCK; |
|
|
1272 | SvREFCNT_dec (next_sv); |
|
|
1273 | /* coro_nready is already taken care of by destroy */ |
|
|
1274 | continue; |
|
|
1275 | } |
|
|
1276 | |
|
|
1277 | --coro_nready; |
|
|
1278 | UNLOCK; |
|
|
1279 | break; |
|
|
1280 | } |
|
|
1281 | |
|
|
1282 | /* free this only after the transfer */ |
|
|
1283 | prev_sv = SvRV (coro_current); |
1931 | SV *prev_sv = SvRV (coro_current); |
|
|
1932 | |
1284 | ta->prev = SvSTATE (prev_sv); |
1933 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1934 | ta->next = next; |
|
|
1935 | |
1285 | TRANSFER_CHECK (*ta); |
1936 | TRANSFER_CHECK (*ta); |
1286 | assert (ta->next->flags & CF_READY); |
1937 | |
1287 | ta->next->flags &= ~CF_READY; |
|
|
1288 | SvRV_set (coro_current, next_sv); |
1938 | SvRV_set (coro_current, (SV *)next->hv); |
1289 | |
1939 | |
1290 | LOCK; |
|
|
1291 | free_coro_mortal (aTHX); |
1940 | free_coro_mortal (aTHX); |
1292 | coro_mortal = prev_sv; |
1941 | coro_mortal = prev_sv; |
1293 | UNLOCK; |
|
|
1294 | } |
1942 | } |
1295 | |
1943 | |
1296 | static void |
1944 | static void |
|
|
1945 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1946 | { |
|
|
1947 | for (;;) |
|
|
1948 | { |
|
|
1949 | struct coro *next = coro_deq (aTHX); |
|
|
1950 | |
|
|
1951 | if (ecb_expect_true (next)) |
|
|
1952 | { |
|
|
1953 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1954 | if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED))) |
|
|
1955 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1956 | else |
|
|
1957 | { |
|
|
1958 | next->flags &= ~CF_READY; |
|
|
1959 | --coro_nready; |
|
|
1960 | |
|
|
1961 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1962 | break; |
|
|
1963 | } |
|
|
1964 | } |
|
|
1965 | else |
|
|
1966 | { |
|
|
1967 | /* nothing to schedule: call the idle handler */ |
|
|
1968 | if (SvROK (sv_idle) |
|
|
1969 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1970 | { |
|
|
1971 | if (SvRV (sv_idle) == SvRV (coro_current)) |
|
|
1972 | croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught"); |
|
|
1973 | |
|
|
1974 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1975 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1976 | --coro_nready; |
|
|
1977 | } |
|
|
1978 | else |
|
|
1979 | { |
|
|
1980 | /* TODO: deprecated, remove, cannot work reliably *//*D*/ |
|
|
1981 | dSP; |
|
|
1982 | |
|
|
1983 | ENTER; |
|
|
1984 | SAVETMPS; |
|
|
1985 | |
|
|
1986 | PUSHMARK (SP); |
|
|
1987 | PUTBACK; |
|
|
1988 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1989 | |
|
|
1990 | FREETMPS; |
|
|
1991 | LEAVE; |
|
|
1992 | } |
|
|
1993 | } |
|
|
1994 | } |
|
|
1995 | } |
|
|
1996 | |
|
|
1997 | ecb_inline void |
1297 | prepare_cede (pTHX_ struct transfer_args *ta) |
1998 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1298 | { |
1999 | { |
1299 | api_ready (coro_current); |
2000 | api_ready (aTHX_ coro_current); |
1300 | prepare_schedule (aTHX_ ta); |
2001 | prepare_schedule (aTHX_ ta); |
1301 | } |
2002 | } |
1302 | |
2003 | |
|
|
2004 | ecb_inline void |
|
|
2005 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
2006 | { |
|
|
2007 | SV *prev = SvRV (coro_current); |
|
|
2008 | |
|
|
2009 | if (coro_nready) |
|
|
2010 | { |
|
|
2011 | prepare_schedule (aTHX_ ta); |
|
|
2012 | api_ready (aTHX_ prev); |
|
|
2013 | } |
|
|
2014 | else |
|
|
2015 | prepare_nop (aTHX_ ta); |
|
|
2016 | } |
|
|
2017 | |
|
|
2018 | static void |
|
|
2019 | api_schedule (pTHX) |
|
|
2020 | { |
|
|
2021 | struct coro_transfer_args ta; |
|
|
2022 | |
|
|
2023 | prepare_schedule (aTHX_ &ta); |
|
|
2024 | TRANSFER (ta, 1); |
|
|
2025 | } |
|
|
2026 | |
|
|
2027 | static void |
|
|
2028 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
2029 | { |
|
|
2030 | struct coro_transfer_args ta; |
|
|
2031 | struct coro *next = SvSTATE (coro_sv); |
|
|
2032 | |
|
|
2033 | SvREFCNT_inc_NN (coro_sv); |
|
|
2034 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
2035 | } |
|
|
2036 | |
1303 | static int |
2037 | static int |
1304 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
2038 | api_cede (pTHX) |
1305 | { |
2039 | { |
1306 | if (coro_nready) |
2040 | struct coro_transfer_args ta; |
1307 | { |
2041 | |
1308 | SV *prev = SvRV (coro_current); |
|
|
1309 | prepare_schedule (aTHX_ ta); |
2042 | prepare_cede (aTHX_ &ta); |
1310 | api_ready (prev); |
2043 | |
|
|
2044 | if (ecb_expect_true (ta.prev != ta.next)) |
|
|
2045 | { |
|
|
2046 | TRANSFER (ta, 1); |
1311 | return 1; |
2047 | return 1; |
1312 | } |
2048 | } |
1313 | else |
2049 | else |
1314 | return 0; |
2050 | return 0; |
1315 | } |
2051 | } |
1316 | |
2052 | |
1317 | static void |
|
|
1318 | api_schedule (void) |
|
|
1319 | { |
|
|
1320 | dTHX; |
|
|
1321 | struct transfer_args ta; |
|
|
1322 | |
|
|
1323 | prepare_schedule (aTHX_ &ta); |
|
|
1324 | TRANSFER (ta); |
|
|
1325 | } |
|
|
1326 | |
|
|
1327 | static int |
2053 | static int |
1328 | api_cede (void) |
2054 | api_cede_notself (pTHX) |
1329 | { |
2055 | { |
1330 | dTHX; |
2056 | if (coro_nready) |
|
|
2057 | { |
1331 | struct transfer_args ta; |
2058 | struct coro_transfer_args ta; |
1332 | |
2059 | |
1333 | prepare_cede (aTHX_ &ta); |
2060 | prepare_cede_notself (aTHX_ &ta); |
1334 | |
|
|
1335 | if (ta.prev != ta.next) |
|
|
1336 | { |
|
|
1337 | TRANSFER (ta); |
2061 | TRANSFER (ta, 1); |
1338 | return 1; |
2062 | return 1; |
1339 | } |
2063 | } |
1340 | else |
2064 | else |
1341 | return 0; |
2065 | return 0; |
1342 | } |
2066 | } |
1343 | |
2067 | |
1344 | static int |
2068 | static void |
1345 | api_cede_notself (void) |
2069 | api_trace (pTHX_ SV *coro_sv, int flags) |
1346 | { |
2070 | { |
1347 | dTHX; |
2071 | struct coro *coro = SvSTATE (coro_sv); |
1348 | struct transfer_args ta; |
|
|
1349 | |
2072 | |
1350 | if (prepare_cede_notself (aTHX_ &ta)) |
2073 | if (coro->flags & CF_RUNNING) |
1351 | { |
2074 | croak ("cannot enable tracing on a running coroutine, caught"); |
1352 | TRANSFER (ta); |
|
|
1353 | return 1; |
|
|
1354 | } |
|
|
1355 | else |
|
|
1356 | return 0; |
|
|
1357 | } |
|
|
1358 | |
|
|
1359 | static void |
|
|
1360 | api_trace (struct coro *coro, int flags) |
|
|
1361 | { |
|
|
1362 | dTHX; |
|
|
1363 | |
2075 | |
1364 | if (flags & CC_TRACE) |
2076 | if (flags & CC_TRACE) |
1365 | { |
2077 | { |
1366 | if (!coro->cctx) |
2078 | if (!coro->cctx) |
1367 | coro->cctx = cctx_new (); |
2079 | coro->cctx = cctx_new_run (); |
1368 | else if (!(coro->cctx->flags & CC_TRACE)) |
2080 | else if (!(coro->cctx->flags & CC_TRACE)) |
1369 | croak ("cannot enable tracing on coroutine with custom stack"); |
2081 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1370 | |
2082 | |
1371 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
2083 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1372 | } |
2084 | } |
1373 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
2085 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1374 | { |
2086 | { |
1375 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
2087 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1376 | |
2088 | |
1377 | if (coro->flags & CF_RUNNING) |
2089 | if (coro->flags & CF_RUNNING) |
1378 | PL_runops = RUNOPS_DEFAULT; |
2090 | PL_runops = RUNOPS_DEFAULT; |
1379 | else |
2091 | else |
1380 | coro->runops = RUNOPS_DEFAULT; |
2092 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
2093 | } |
|
|
2094 | } |
|
|
2095 | |
|
|
2096 | static void |
|
|
2097 | coro_push_av (pTHX_ AV *av, I32 gimme_v) |
|
|
2098 | { |
|
|
2099 | if (AvFILLp (av) >= 0 && gimme_v != G_VOID) |
|
|
2100 | { |
|
|
2101 | dSP; |
|
|
2102 | |
|
|
2103 | if (gimme_v == G_SCALAR) |
|
|
2104 | XPUSHs (AvARRAY (av)[AvFILLp (av)]); |
|
|
2105 | else |
|
|
2106 | { |
|
|
2107 | int i; |
|
|
2108 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2109 | |
|
|
2110 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2111 | PUSHs (AvARRAY (av)[i]); |
|
|
2112 | } |
|
|
2113 | |
|
|
2114 | PUTBACK; |
|
|
2115 | } |
|
|
2116 | } |
|
|
2117 | |
|
|
2118 | static void |
|
|
2119 | coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb) |
|
|
2120 | { |
|
|
2121 | if (!coro->on_destroy) |
|
|
2122 | coro->on_destroy = newAV (); |
|
|
2123 | |
|
|
2124 | av_push (coro->on_destroy, cb); |
|
|
2125 | } |
|
|
2126 | |
|
|
2127 | static void |
|
|
2128 | slf_destroy_join (pTHX_ struct CoroSLF *frame) |
|
|
2129 | { |
|
|
2130 | SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv); |
|
|
2131 | } |
|
|
2132 | |
|
|
2133 | static int |
|
|
2134 | slf_check_join (pTHX_ struct CoroSLF *frame) |
|
|
2135 | { |
|
|
2136 | struct coro *coro = (struct coro *)frame->data; |
|
|
2137 | |
|
|
2138 | if (!coro->status) |
|
|
2139 | return 1; |
|
|
2140 | |
|
|
2141 | frame->destroy = 0; |
|
|
2142 | |
|
|
2143 | coro_push_av (aTHX_ coro->status, GIMME_V); |
|
|
2144 | |
|
|
2145 | SvREFCNT_dec ((SV *)coro->hv); |
|
|
2146 | |
|
|
2147 | return 0; |
|
|
2148 | } |
|
|
2149 | |
|
|
2150 | static void |
|
|
2151 | slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2152 | { |
|
|
2153 | struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef); |
|
|
2154 | |
|
|
2155 | if (items > 1) |
|
|
2156 | croak ("join called with too many arguments"); |
|
|
2157 | |
|
|
2158 | if (coro->status) |
|
|
2159 | frame->prepare = prepare_nop; |
|
|
2160 | else |
|
|
2161 | { |
|
|
2162 | coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current))); |
|
|
2163 | frame->prepare = prepare_schedule; |
|
|
2164 | } |
|
|
2165 | |
|
|
2166 | frame->check = slf_check_join; |
|
|
2167 | frame->destroy = slf_destroy_join; |
|
|
2168 | frame->data = (void *)coro; |
|
|
2169 | SvREFCNT_inc (coro->hv); |
|
|
2170 | } |
|
|
2171 | |
|
|
2172 | static void |
|
|
2173 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
2174 | { |
|
|
2175 | AV *od = coro->on_destroy; |
|
|
2176 | |
|
|
2177 | if (!od) |
|
|
2178 | return; |
|
|
2179 | |
|
|
2180 | while (AvFILLp (od) >= 0) |
|
|
2181 | { |
|
|
2182 | SV *cb = sv_2mortal (av_pop (od)); |
|
|
2183 | |
|
|
2184 | /* coro hv's (and only hv's at the moment) are supported as well */ |
|
|
2185 | if (SvSTATEhv_p (aTHX_ cb)) |
|
|
2186 | api_ready (aTHX_ cb); |
|
|
2187 | else |
|
|
2188 | { |
|
|
2189 | dSP; /* don't disturb outer sp */ |
|
|
2190 | PUSHMARK (SP); |
|
|
2191 | |
|
|
2192 | if (coro->status) |
|
|
2193 | { |
|
|
2194 | PUTBACK; |
|
|
2195 | coro_push_av (aTHX_ coro->status, G_ARRAY); |
|
|
2196 | SPAGAIN; |
|
|
2197 | } |
|
|
2198 | |
|
|
2199 | PUTBACK; |
|
|
2200 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2201 | } |
|
|
2202 | } |
|
|
2203 | } |
|
|
2204 | |
|
|
2205 | static void |
|
|
2206 | coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2207 | { |
|
|
2208 | AV *av; |
|
|
2209 | |
|
|
2210 | if (coro->status) |
|
|
2211 | { |
|
|
2212 | av = coro->status; |
|
|
2213 | av_clear (av); |
|
|
2214 | } |
|
|
2215 | else |
|
|
2216 | av = coro->status = newAV (); |
|
|
2217 | |
|
|
2218 | /* items are actually not so common, so optimise for this case */ |
|
|
2219 | if (items) |
|
|
2220 | { |
|
|
2221 | int i; |
|
|
2222 | |
|
|
2223 | av_extend (av, items - 1); |
|
|
2224 | |
|
|
2225 | for (i = 0; i < items; ++i) |
|
|
2226 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
2227 | } |
|
|
2228 | } |
|
|
2229 | |
|
|
2230 | static void |
|
|
2231 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
|
|
2232 | { |
|
|
2233 | av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */ |
|
|
2234 | api_ready (aTHX_ sv_manager); |
|
|
2235 | |
|
|
2236 | frame->prepare = prepare_schedule; |
|
|
2237 | frame->check = slf_check_repeat; |
|
|
2238 | |
|
|
2239 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
2240 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
2241 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2242 | } |
|
|
2243 | |
|
|
2244 | static void |
|
|
2245 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2246 | { |
|
|
2247 | HV *coro_hv = (HV *)SvRV (coro_current); |
|
|
2248 | |
|
|
2249 | coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items); |
|
|
2250 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2251 | } |
|
|
2252 | |
|
|
2253 | static void |
|
|
2254 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2255 | { |
|
|
2256 | HV *coro_hv; |
|
|
2257 | struct coro *coro; |
|
|
2258 | |
|
|
2259 | if (items <= 0) |
|
|
2260 | croak ("Coro::cancel called without coro object,"); |
|
|
2261 | |
|
|
2262 | coro = SvSTATE (arg [0]); |
|
|
2263 | coro_hv = coro->hv; |
|
|
2264 | |
|
|
2265 | coro_set_status (aTHX_ coro, arg + 1, items - 1); |
|
|
2266 | |
|
|
2267 | if (ecb_expect_false (coro->flags & CF_NOCANCEL)) |
|
|
2268 | { |
|
|
2269 | /* coro currently busy cancelling something, so just notify it */ |
|
|
2270 | coro->slf_frame.data = (void *)coro; |
|
|
2271 | |
|
|
2272 | frame->prepare = prepare_nop; |
|
|
2273 | frame->check = slf_check_nop; |
|
|
2274 | } |
|
|
2275 | else if (coro_hv == (HV *)SvRV (coro_current)) |
|
|
2276 | { |
|
|
2277 | /* cancelling the current coro is allowed, and equals terminate */ |
|
|
2278 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2279 | } |
|
|
2280 | else |
|
|
2281 | { |
|
|
2282 | struct coro *self = SvSTATE_current; |
|
|
2283 | |
|
|
2284 | /* otherwise we cancel directly, purely for speed reasons |
|
|
2285 | * unfortunately, this requires some magic trickery, as |
|
|
2286 | * somebody else could cancel us, so we have to fight the cancellation. |
|
|
2287 | * this is ugly, and hopefully fully worth the extra speed. |
|
|
2288 | * besides, I can't get the slow-but-safe version working... |
|
|
2289 | */ |
|
|
2290 | slf_frame.data = 0; |
|
|
2291 | self->flags |= CF_NOCANCEL; |
|
|
2292 | coro_state_destroy (aTHX_ coro); |
|
|
2293 | self->flags &= ~CF_NOCANCEL; |
|
|
2294 | |
|
|
2295 | if (slf_frame.data) |
|
|
2296 | { |
|
|
2297 | /* while we were busy we have been cancelled, so terminate */ |
|
|
2298 | slf_init_terminate_cancel_common (aTHX_ frame, self->hv); |
|
|
2299 | } |
|
|
2300 | else |
|
|
2301 | { |
|
|
2302 | frame->prepare = prepare_nop; |
|
|
2303 | frame->check = slf_check_nop; |
|
|
2304 | } |
|
|
2305 | } |
|
|
2306 | } |
|
|
2307 | |
|
|
2308 | static int |
|
|
2309 | slf_check_safe_cancel (pTHX_ struct CoroSLF *frame) |
|
|
2310 | { |
|
|
2311 | frame->prepare = 0; |
|
|
2312 | coro_unwind_stacks (aTHX); |
|
|
2313 | |
|
|
2314 | slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current)); |
|
|
2315 | |
|
|
2316 | return 1; |
|
|
2317 | } |
|
|
2318 | |
|
|
2319 | static int |
|
|
2320 | safe_cancel (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2321 | { |
|
|
2322 | if (coro->cctx) |
|
|
2323 | croak ("coro inside C callback, unable to cancel at this time, caught"); |
|
|
2324 | |
|
|
2325 | if (coro->flags & CF_NEW) |
|
|
2326 | { |
|
|
2327 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2328 | coro_state_destroy (aTHX_ coro); |
|
|
2329 | } |
|
|
2330 | else |
|
|
2331 | { |
|
|
2332 | if (!coro->slf_frame.prepare) |
|
|
2333 | croak ("coro outside an SLF function, unable to cancel at this time, caught"); |
|
|
2334 | |
|
|
2335 | slf_destroy (aTHX_ coro); |
|
|
2336 | |
|
|
2337 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2338 | coro->slf_frame.prepare = prepare_nop; |
|
|
2339 | coro->slf_frame.check = slf_check_safe_cancel; |
|
|
2340 | |
|
|
2341 | api_ready (aTHX_ (SV *)coro->hv); |
|
|
2342 | } |
|
|
2343 | |
|
|
2344 | return 1; |
|
|
2345 | } |
|
|
2346 | |
|
|
2347 | /*****************************************************************************/ |
|
|
2348 | /* async pool handler */ |
|
|
2349 | |
|
|
2350 | static int |
|
|
2351 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
2352 | { |
|
|
2353 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2354 | struct coro *coro = (struct coro *)frame->data; |
|
|
2355 | |
|
|
2356 | if (!coro->invoke_cb) |
|
|
2357 | return 1; /* loop till we have invoke */ |
|
|
2358 | else |
|
|
2359 | { |
|
|
2360 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2361 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2362 | |
|
|
2363 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2364 | |
|
|
2365 | { |
|
|
2366 | dSP; |
|
|
2367 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
2368 | PUTBACK; |
1381 | } |
2369 | } |
|
|
2370 | |
|
|
2371 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
2372 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
2373 | coro->invoke_av = 0; |
|
|
2374 | |
|
|
2375 | return 0; |
|
|
2376 | } |
1382 | } |
2377 | } |
|
|
2378 | |
|
|
2379 | static void |
|
|
2380 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2381 | { |
|
|
2382 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2383 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2384 | |
|
|
2385 | if (ecb_expect_true (coro->saved_deffh)) |
|
|
2386 | { |
|
|
2387 | /* subsequent iteration */ |
|
|
2388 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2389 | coro->saved_deffh = 0; |
|
|
2390 | |
|
|
2391 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2392 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2393 | { |
|
|
2394 | slf_init_terminate_cancel_common (aTHX_ frame, hv); |
|
|
2395 | return; |
|
|
2396 | } |
|
|
2397 | else |
|
|
2398 | { |
|
|
2399 | av_clear (GvAV (PL_defgv)); |
|
|
2400 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
2401 | |
|
|
2402 | coro->prio = 0; |
|
|
2403 | |
|
|
2404 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2405 | api_trace (aTHX_ coro_current, 0); |
|
|
2406 | |
|
|
2407 | frame->prepare = prepare_schedule; |
|
|
2408 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2409 | } |
|
|
2410 | } |
|
|
2411 | else |
|
|
2412 | { |
|
|
2413 | /* first iteration, simply fall through */ |
|
|
2414 | frame->prepare = prepare_nop; |
|
|
2415 | } |
|
|
2416 | |
|
|
2417 | frame->check = slf_check_pool_handler; |
|
|
2418 | frame->data = (void *)coro; |
|
|
2419 | } |
|
|
2420 | |
|
|
2421 | /*****************************************************************************/ |
|
|
2422 | /* rouse callback */ |
|
|
2423 | |
|
|
2424 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2425 | |
|
|
2426 | static void |
|
|
2427 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2428 | { |
|
|
2429 | dXSARGS; |
|
|
2430 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2431 | |
|
|
2432 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2433 | { |
|
|
2434 | /* first call, set args */ |
|
|
2435 | SV *coro = SvRV (data); |
|
|
2436 | AV *av = newAV (); |
|
|
2437 | |
|
|
2438 | SvRV_set (data, (SV *)av); |
|
|
2439 | |
|
|
2440 | /* better take a full copy of the arguments */ |
|
|
2441 | while (items--) |
|
|
2442 | av_store (av, items, newSVsv (ST (items))); |
|
|
2443 | |
|
|
2444 | api_ready (aTHX_ coro); |
|
|
2445 | SvREFCNT_dec (coro); |
|
|
2446 | } |
|
|
2447 | |
|
|
2448 | XSRETURN_EMPTY; |
|
|
2449 | } |
|
|
2450 | |
|
|
2451 | static int |
|
|
2452 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2453 | { |
|
|
2454 | SV *data = (SV *)frame->data; |
|
|
2455 | |
|
|
2456 | if (CORO_THROW) |
|
|
2457 | return 0; |
|
|
2458 | |
|
|
2459 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2460 | return 1; |
|
|
2461 | |
|
|
2462 | /* now push all results on the stack */ |
|
|
2463 | { |
|
|
2464 | dSP; |
|
|
2465 | AV *av = (AV *)SvRV (data); |
|
|
2466 | int i; |
|
|
2467 | |
|
|
2468 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2469 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2470 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2471 | |
|
|
2472 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2473 | AvFILLp (av) = -1; |
|
|
2474 | av_undef (av); |
|
|
2475 | |
|
|
2476 | PUTBACK; |
|
|
2477 | } |
|
|
2478 | |
|
|
2479 | return 0; |
|
|
2480 | } |
|
|
2481 | |
|
|
2482 | static void |
|
|
2483 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2484 | { |
|
|
2485 | SV *cb; |
|
|
2486 | |
|
|
2487 | if (items) |
|
|
2488 | cb = arg [0]; |
|
|
2489 | else |
|
|
2490 | { |
|
|
2491 | struct coro *coro = SvSTATE_current; |
|
|
2492 | |
|
|
2493 | if (!coro->rouse_cb) |
|
|
2494 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2495 | |
|
|
2496 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2497 | coro->rouse_cb = 0; |
|
|
2498 | } |
|
|
2499 | |
|
|
2500 | if (!SvROK (cb) |
|
|
2501 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2502 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2503 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2504 | |
|
|
2505 | { |
|
|
2506 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
|
|
2507 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2508 | |
|
|
2509 | frame->data = (void *)data; |
|
|
2510 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2511 | frame->check = slf_check_rouse_wait; |
|
|
2512 | } |
|
|
2513 | } |
|
|
2514 | |
|
|
2515 | static SV * |
|
|
2516 | coro_new_rouse_cb (pTHX) |
|
|
2517 | { |
|
|
2518 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2519 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2520 | SV *data = newRV_inc ((SV *)hv); |
|
|
2521 | SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2522 | |
|
|
2523 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2524 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2525 | |
|
|
2526 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2527 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2528 | |
|
|
2529 | return cb; |
|
|
2530 | } |
|
|
2531 | |
|
|
2532 | /*****************************************************************************/ |
|
|
2533 | /* schedule-like-function opcode (SLF) */ |
|
|
2534 | |
|
|
2535 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2536 | static const CV *slf_cv; |
|
|
2537 | static SV **slf_argv; |
|
|
2538 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2539 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2540 | |
|
|
2541 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2542 | /* recreate the stack frame as perl will on following calls */ |
|
|
2543 | /* since entersub cleared the stack */ |
|
|
2544 | static OP * |
|
|
2545 | pp_restore (pTHX) |
|
|
2546 | { |
|
|
2547 | int i; |
|
|
2548 | SV **SP = PL_stack_base + slf_ax; |
|
|
2549 | |
|
|
2550 | PUSHMARK (SP); |
|
|
2551 | |
|
|
2552 | EXTEND (SP, slf_argc + 1); |
|
|
2553 | |
|
|
2554 | for (i = 0; i < slf_argc; ++i) |
|
|
2555 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2556 | |
|
|
2557 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2558 | |
|
|
2559 | RETURNOP (slf_restore.op_first); |
|
|
2560 | } |
|
|
2561 | |
|
|
2562 | static void |
|
|
2563 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2564 | { |
|
|
2565 | SV **arg = (SV **)slf_frame.data; |
|
|
2566 | |
|
|
2567 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2568 | } |
|
|
2569 | |
|
|
2570 | static void |
|
|
2571 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2572 | { |
|
|
2573 | if (items != 2) |
|
|
2574 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2575 | |
|
|
2576 | frame->prepare = slf_prepare_transfer; |
|
|
2577 | frame->check = slf_check_nop; |
|
|
2578 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2579 | } |
|
|
2580 | |
|
|
2581 | static void |
|
|
2582 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2583 | { |
|
|
2584 | frame->prepare = prepare_schedule; |
|
|
2585 | frame->check = slf_check_nop; |
|
|
2586 | } |
|
|
2587 | |
|
|
2588 | static void |
|
|
2589 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2590 | { |
|
|
2591 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2592 | |
|
|
2593 | SvREFCNT_inc_NN (next->hv); |
|
|
2594 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2595 | } |
|
|
2596 | |
|
|
2597 | static void |
|
|
2598 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2599 | { |
|
|
2600 | if (!items) |
|
|
2601 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2602 | |
|
|
2603 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2604 | frame->prepare = slf_prepare_schedule_to; |
|
|
2605 | frame->check = slf_check_nop; |
|
|
2606 | } |
|
|
2607 | |
|
|
2608 | static void |
|
|
2609 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2610 | { |
|
|
2611 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2612 | |
|
|
2613 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2614 | } |
|
|
2615 | |
|
|
2616 | static void |
|
|
2617 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2618 | { |
|
|
2619 | frame->prepare = prepare_cede; |
|
|
2620 | frame->check = slf_check_nop; |
|
|
2621 | } |
|
|
2622 | |
|
|
2623 | static void |
|
|
2624 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2625 | { |
|
|
2626 | frame->prepare = prepare_cede_notself; |
|
|
2627 | frame->check = slf_check_nop; |
|
|
2628 | } |
|
|
2629 | |
|
|
2630 | /* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ |
|
|
2631 | static void |
|
|
2632 | slf_destroy (pTHX_ struct coro *coro) |
|
|
2633 | { |
|
|
2634 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
2635 | if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty) |
|
|
2636 | coro->slf_frame.destroy (aTHX_ &coro->slf_frame); |
|
|
2637 | |
|
|
2638 | /* |
|
|
2639 | * The on_destroy above most likely is from an SLF call. |
|
|
2640 | * Since by definition the SLF call will not finish when we destroy |
|
|
2641 | * the coro, we will have to force-finish it here, otherwise |
|
|
2642 | * cleanup functions cannot call SLF functions. |
|
|
2643 | */ |
|
|
2644 | coro->slf_frame.prepare = 0; |
|
|
2645 | } |
|
|
2646 | |
|
|
2647 | /* |
|
|
2648 | * these not obviously related functions are all rolled into one |
|
|
2649 | * function to increase chances that they all will call transfer with the same |
|
|
2650 | * stack offset |
|
|
2651 | * SLF stands for "schedule-like-function". |
|
|
2652 | */ |
|
|
2653 | static OP * |
|
|
2654 | pp_slf (pTHX) |
|
|
2655 | { |
|
|
2656 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2657 | |
|
|
2658 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2659 | /* the latter happens when a new coro has been started */ |
|
|
2660 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2661 | if (ecb_expect_true (!slf_frame.prepare)) |
|
|
2662 | { |
|
|
2663 | /* first iteration */ |
|
|
2664 | dSP; |
|
|
2665 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2666 | int items = SP - arg; /* args without function object */ |
|
|
2667 | SV *gv = *sp; |
|
|
2668 | |
|
|
2669 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2670 | /* for us, divert to the real entersub */ |
|
|
2671 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2672 | || !GvCV (gv) |
|
|
2673 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2674 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2675 | |
|
|
2676 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2677 | { |
|
|
2678 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2679 | AV *av = GvAV (PL_defgv); |
|
|
2680 | arg = AvARRAY (av); |
|
|
2681 | items = AvFILLp (av) + 1; |
|
|
2682 | } |
|
|
2683 | |
|
|
2684 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2685 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2686 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2687 | |
|
|
2688 | /* pop args */ |
|
|
2689 | SP = PL_stack_base + POPMARK; |
|
|
2690 | |
|
|
2691 | PUTBACK; |
|
|
2692 | } |
|
|
2693 | |
|
|
2694 | /* now that we have a slf_frame, interpret it! */ |
|
|
2695 | /* we use a callback system not to make the code needlessly */ |
|
|
2696 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2697 | |
|
|
2698 | do |
|
|
2699 | { |
|
|
2700 | struct coro_transfer_args ta; |
|
|
2701 | |
|
|
2702 | slf_frame.prepare (aTHX_ &ta); |
|
|
2703 | TRANSFER (ta, 0); |
|
|
2704 | |
|
|
2705 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2706 | } |
|
|
2707 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2708 | |
|
|
2709 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2710 | |
|
|
2711 | /* exception handling */ |
|
|
2712 | if (ecb_expect_false (CORO_THROW)) |
|
|
2713 | { |
|
|
2714 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2715 | |
|
|
2716 | CORO_THROW = 0; |
|
|
2717 | sv_setsv (ERRSV, exception); |
|
|
2718 | croak (0); |
|
|
2719 | } |
|
|
2720 | |
|
|
2721 | /* return value handling - mostly like entersub */ |
|
|
2722 | /* make sure we put something on the stack in scalar context */ |
|
|
2723 | if (GIMME_V == G_SCALAR |
|
|
2724 | && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1)) |
|
|
2725 | { |
|
|
2726 | dSP; |
|
|
2727 | SV **bot = PL_stack_base + checkmark; |
|
|
2728 | |
|
|
2729 | if (sp == bot) /* too few, push undef */ |
|
|
2730 | bot [1] = &PL_sv_undef; |
|
|
2731 | else /* too many, take last one */ |
|
|
2732 | bot [1] = *sp; |
|
|
2733 | |
|
|
2734 | SP = bot + 1; |
|
|
2735 | |
|
|
2736 | PUTBACK; |
|
|
2737 | } |
|
|
2738 | |
|
|
2739 | return NORMAL; |
|
|
2740 | } |
|
|
2741 | |
|
|
2742 | static void |
|
|
2743 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2744 | { |
|
|
2745 | int i; |
|
|
2746 | SV **arg = PL_stack_base + ax; |
|
|
2747 | int items = PL_stack_sp - arg + 1; |
|
|
2748 | |
|
|
2749 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2750 | |
|
|
2751 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2752 | && PL_op->op_ppaddr != pp_slf) |
|
|
2753 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2754 | |
|
|
2755 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2756 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2757 | slf_cv = cv; |
|
|
2758 | |
|
|
2759 | /* we patch the op, and then re-run the whole call */ |
|
|
2760 | /* we have to put the same argument on the stack for this to work */ |
|
|
2761 | /* and this will be done by pp_restore */ |
|
|
2762 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2763 | slf_restore.op_type = OP_CUSTOM; |
|
|
2764 | slf_restore.op_ppaddr = pp_restore; |
|
|
2765 | slf_restore.op_first = PL_op; |
|
|
2766 | |
|
|
2767 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2768 | |
|
|
2769 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2770 | { |
|
|
2771 | if (items > slf_arga) |
|
|
2772 | { |
|
|
2773 | slf_arga = items; |
|
|
2774 | Safefree (slf_argv); |
|
|
2775 | New (0, slf_argv, slf_arga, SV *); |
|
|
2776 | } |
|
|
2777 | |
|
|
2778 | slf_argc = items; |
|
|
2779 | |
|
|
2780 | for (i = 0; i < items; ++i) |
|
|
2781 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2782 | } |
|
|
2783 | else |
|
|
2784 | slf_argc = 0; |
|
|
2785 | |
|
|
2786 | PL_op->op_ppaddr = pp_slf; |
|
|
2787 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2788 | |
|
|
2789 | PL_op = (OP *)&slf_restore; |
|
|
2790 | } |
|
|
2791 | |
|
|
2792 | /*****************************************************************************/ |
|
|
2793 | /* dynamic wind */ |
|
|
2794 | |
|
|
2795 | static void |
|
|
2796 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2797 | { |
|
|
2798 | dSP; |
|
|
2799 | |
|
|
2800 | PUSHSTACK; |
|
|
2801 | |
|
|
2802 | PUSHMARK (SP); |
|
|
2803 | PUTBACK; |
|
|
2804 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2805 | SPAGAIN; |
|
|
2806 | |
|
|
2807 | POPSTACK; |
|
|
2808 | } |
|
|
2809 | |
|
|
2810 | static SV * |
|
|
2811 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2812 | { |
|
|
2813 | AV *av = *avp; |
|
|
2814 | SV *res = av_pop (av); |
|
|
2815 | |
|
|
2816 | if (AvFILLp (av) < 0) |
|
|
2817 | { |
|
|
2818 | *avp = 0; |
|
|
2819 | SvREFCNT_dec (av); |
|
|
2820 | } |
|
|
2821 | |
|
|
2822 | return res; |
|
|
2823 | } |
|
|
2824 | |
|
|
2825 | static void |
|
|
2826 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2827 | { |
|
|
2828 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2829 | SvREFCNT_dec (cb); |
|
|
2830 | } |
|
|
2831 | |
|
|
2832 | static void |
|
|
2833 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2834 | { |
|
|
2835 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2836 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2837 | } |
|
|
2838 | |
|
|
2839 | /*****************************************************************************/ |
|
|
2840 | /* PerlIO::cede */ |
|
|
2841 | |
|
|
2842 | typedef struct |
|
|
2843 | { |
|
|
2844 | PerlIOBuf base; |
|
|
2845 | NV next, every; |
|
|
2846 | } PerlIOCede; |
|
|
2847 | |
|
|
2848 | static IV ecb_cold |
|
|
2849 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
2850 | { |
|
|
2851 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2852 | |
|
|
2853 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
2854 | self->next = nvtime () + self->every; |
|
|
2855 | |
|
|
2856 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
2857 | } |
|
|
2858 | |
|
|
2859 | static SV * ecb_cold |
|
|
2860 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
2861 | { |
|
|
2862 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2863 | |
|
|
2864 | return newSVnv (self->every); |
|
|
2865 | } |
|
|
2866 | |
|
|
2867 | static IV |
|
|
2868 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
2869 | { |
|
|
2870 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2871 | double now = nvtime (); |
|
|
2872 | |
|
|
2873 | if (now >= self->next) |
|
|
2874 | { |
|
|
2875 | api_cede (aTHX); |
|
|
2876 | self->next = now + self->every; |
|
|
2877 | } |
|
|
2878 | |
|
|
2879 | return PerlIOBuf_flush (aTHX_ f); |
|
|
2880 | } |
|
|
2881 | |
|
|
2882 | static PerlIO_funcs PerlIO_cede = |
|
|
2883 | { |
|
|
2884 | sizeof(PerlIO_funcs), |
|
|
2885 | "cede", |
|
|
2886 | sizeof(PerlIOCede), |
|
|
2887 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
2888 | PerlIOCede_pushed, |
|
|
2889 | PerlIOBuf_popped, |
|
|
2890 | PerlIOBuf_open, |
|
|
2891 | PerlIOBase_binmode, |
|
|
2892 | PerlIOCede_getarg, |
|
|
2893 | PerlIOBase_fileno, |
|
|
2894 | PerlIOBuf_dup, |
|
|
2895 | PerlIOBuf_read, |
|
|
2896 | PerlIOBuf_unread, |
|
|
2897 | PerlIOBuf_write, |
|
|
2898 | PerlIOBuf_seek, |
|
|
2899 | PerlIOBuf_tell, |
|
|
2900 | PerlIOBuf_close, |
|
|
2901 | PerlIOCede_flush, |
|
|
2902 | PerlIOBuf_fill, |
|
|
2903 | PerlIOBase_eof, |
|
|
2904 | PerlIOBase_error, |
|
|
2905 | PerlIOBase_clearerr, |
|
|
2906 | PerlIOBase_setlinebuf, |
|
|
2907 | PerlIOBuf_get_base, |
|
|
2908 | PerlIOBuf_bufsiz, |
|
|
2909 | PerlIOBuf_get_ptr, |
|
|
2910 | PerlIOBuf_get_cnt, |
|
|
2911 | PerlIOBuf_set_ptrcnt, |
|
|
2912 | }; |
|
|
2913 | |
|
|
2914 | /*****************************************************************************/ |
|
|
2915 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2916 | |
|
|
2917 | static SV * |
|
|
2918 | coro_waitarray_new (pTHX_ int count) |
|
|
2919 | { |
|
|
2920 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2921 | AV *av = newAV (); |
|
|
2922 | SV **ary; |
|
|
2923 | |
|
|
2924 | /* unfortunately, building manually saves memory */ |
|
|
2925 | Newx (ary, 2, SV *); |
|
|
2926 | AvALLOC (av) = ary; |
|
|
2927 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2928 | AvARRAY (av) = ary; |
|
|
2929 | #else |
|
|
2930 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2931 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2932 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2933 | #endif |
|
|
2934 | AvMAX (av) = 1; |
|
|
2935 | AvFILLp (av) = 0; |
|
|
2936 | ary [0] = newSViv (count); |
|
|
2937 | |
|
|
2938 | return newRV_noinc ((SV *)av); |
|
|
2939 | } |
|
|
2940 | |
|
|
2941 | /* semaphore */ |
|
|
2942 | |
|
|
2943 | static void |
|
|
2944 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2945 | { |
|
|
2946 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2947 | IV count = SvIVX (count_sv); |
|
|
2948 | |
|
|
2949 | count += adjust; |
|
|
2950 | SvIVX (count_sv) = count; |
|
|
2951 | |
|
|
2952 | /* now wake up as many waiters as are expected to lock */ |
|
|
2953 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2954 | { |
|
|
2955 | SV *cb; |
|
|
2956 | |
|
|
2957 | /* swap first two elements so we can shift a waiter */ |
|
|
2958 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2959 | AvARRAY (av)[1] = count_sv; |
|
|
2960 | cb = av_shift (av); |
|
|
2961 | |
|
|
2962 | if (SvOBJECT (cb)) |
|
|
2963 | { |
|
|
2964 | api_ready (aTHX_ cb); |
|
|
2965 | --count; |
|
|
2966 | } |
|
|
2967 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2968 | { |
|
|
2969 | dSP; |
|
|
2970 | PUSHMARK (SP); |
|
|
2971 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2972 | PUTBACK; |
|
|
2973 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2974 | } |
|
|
2975 | |
|
|
2976 | SvREFCNT_dec (cb); |
|
|
2977 | } |
|
|
2978 | } |
|
|
2979 | |
|
|
2980 | static void |
|
|
2981 | coro_semaphore_destroy (pTHX_ struct CoroSLF *frame) |
|
|
2982 | { |
|
|
2983 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2984 | coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0); |
|
|
2985 | } |
|
|
2986 | |
|
|
2987 | static int |
|
|
2988 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2989 | { |
|
|
2990 | AV *av = (AV *)frame->data; |
|
|
2991 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2992 | SV *coro_hv = SvRV (coro_current); |
|
|
2993 | |
|
|
2994 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2995 | if (CORO_THROW) |
|
|
2996 | return 0; |
|
|
2997 | else if (SvIVX (count_sv) > 0) |
|
|
2998 | { |
|
|
2999 | frame->destroy = 0; |
|
|
3000 | |
|
|
3001 | if (acquire) |
|
|
3002 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
3003 | else |
|
|
3004 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3005 | |
|
|
3006 | return 0; |
|
|
3007 | } |
|
|
3008 | else |
|
|
3009 | { |
|
|
3010 | int i; |
|
|
3011 | /* if we were woken up but can't down, we look through the whole */ |
|
|
3012 | /* waiters list and only add us if we aren't in there already */ |
|
|
3013 | /* this avoids some degenerate memory usage cases */ |
|
|
3014 | for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */ |
|
|
3015 | if (AvARRAY (av)[i] == coro_hv) |
|
|
3016 | return 1; |
|
|
3017 | |
|
|
3018 | av_push (av, SvREFCNT_inc (coro_hv)); |
|
|
3019 | return 1; |
|
|
3020 | } |
|
|
3021 | } |
|
|
3022 | |
|
|
3023 | static int |
|
|
3024 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
3025 | { |
|
|
3026 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
3027 | } |
|
|
3028 | |
|
|
3029 | static int |
|
|
3030 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
3031 | { |
|
|
3032 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
3033 | } |
|
|
3034 | |
|
|
3035 | static void |
|
|
3036 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3037 | { |
|
|
3038 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3039 | |
|
|
3040 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3041 | { |
|
|
3042 | frame->data = (void *)av; |
|
|
3043 | frame->prepare = prepare_nop; |
|
|
3044 | } |
|
|
3045 | else |
|
|
3046 | { |
|
|
3047 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
3048 | |
|
|
3049 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
3050 | frame->prepare = prepare_schedule; |
|
|
3051 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
3052 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
3053 | frame->destroy = coro_semaphore_destroy; |
|
|
3054 | } |
|
|
3055 | } |
|
|
3056 | |
|
|
3057 | static void |
|
|
3058 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3059 | { |
|
|
3060 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3061 | frame->check = slf_check_semaphore_down; |
|
|
3062 | } |
|
|
3063 | |
|
|
3064 | static void |
|
|
3065 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3066 | { |
|
|
3067 | if (items >= 2) |
|
|
3068 | { |
|
|
3069 | /* callback form */ |
|
|
3070 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3071 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3072 | |
|
|
3073 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3074 | |
|
|
3075 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3076 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3077 | |
|
|
3078 | frame->prepare = prepare_nop; |
|
|
3079 | frame->check = slf_check_nop; |
|
|
3080 | } |
|
|
3081 | else |
|
|
3082 | { |
|
|
3083 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3084 | frame->check = slf_check_semaphore_wait; |
|
|
3085 | } |
|
|
3086 | } |
|
|
3087 | |
|
|
3088 | /* signal */ |
|
|
3089 | |
|
|
3090 | static void |
|
|
3091 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
3092 | { |
|
|
3093 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3094 | |
|
|
3095 | /* now signal count waiters */ |
|
|
3096 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3097 | { |
|
|
3098 | SV *cb; |
|
|
3099 | |
|
|
3100 | /* swap first two elements so we can shift a waiter */ |
|
|
3101 | cb = AvARRAY (av)[0]; |
|
|
3102 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3103 | AvARRAY (av)[1] = cb; |
|
|
3104 | |
|
|
3105 | cb = av_shift (av); |
|
|
3106 | |
|
|
3107 | if (SvTYPE (cb) == SVt_PVCV) |
|
|
3108 | { |
|
|
3109 | dSP; |
|
|
3110 | PUSHMARK (SP); |
|
|
3111 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
3112 | PUTBACK; |
|
|
3113 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
3114 | } |
|
|
3115 | else |
|
|
3116 | { |
|
|
3117 | api_ready (aTHX_ cb); |
|
|
3118 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
3119 | } |
|
|
3120 | |
|
|
3121 | SvREFCNT_dec (cb); |
|
|
3122 | |
|
|
3123 | --count; |
|
|
3124 | } |
|
|
3125 | } |
|
|
3126 | |
|
|
3127 | static int |
|
|
3128 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
3129 | { |
|
|
3130 | /* if we are about to throw, also stop waiting */ |
|
|
3131 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
3132 | } |
|
|
3133 | |
|
|
3134 | static void |
|
|
3135 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3136 | { |
|
|
3137 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3138 | |
|
|
3139 | if (items >= 2) |
|
|
3140 | { |
|
|
3141 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3142 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3143 | |
|
|
3144 | if (SvIVX (AvARRAY (av)[0])) |
|
|
3145 | coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */ |
|
|
3146 | |
|
|
3147 | frame->prepare = prepare_nop; |
|
|
3148 | frame->check = slf_check_nop; |
|
|
3149 | } |
|
|
3150 | else if (SvIVX (AvARRAY (av)[0])) |
|
|
3151 | { |
|
|
3152 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3153 | frame->prepare = prepare_nop; |
|
|
3154 | frame->check = slf_check_nop; |
|
|
3155 | } |
|
|
3156 | else |
|
|
3157 | { |
|
|
3158 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
3159 | |
|
|
3160 | av_push (av, waiter); |
|
|
3161 | |
|
|
3162 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
3163 | frame->prepare = prepare_schedule; |
|
|
3164 | frame->check = slf_check_signal_wait; |
|
|
3165 | } |
|
|
3166 | } |
|
|
3167 | |
|
|
3168 | /*****************************************************************************/ |
|
|
3169 | /* Coro::AIO */ |
|
|
3170 | |
|
|
3171 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
3172 | |
|
|
3173 | /* helper storage struct */ |
|
|
3174 | struct io_state |
|
|
3175 | { |
|
|
3176 | int errorno; |
|
|
3177 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
3178 | int laststatval; |
|
|
3179 | Stat_t statcache; |
|
|
3180 | }; |
|
|
3181 | |
|
|
3182 | static void |
|
|
3183 | coro_aio_callback (pTHX_ CV *cv) |
|
|
3184 | { |
|
|
3185 | dXSARGS; |
|
|
3186 | AV *state = (AV *)S_GENSUB_ARG; |
|
|
3187 | SV *coro = av_pop (state); |
|
|
3188 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
3189 | |
|
|
3190 | av_extend (state, items - 1); |
|
|
3191 | |
|
|
3192 | sv_upgrade (data_sv, SVt_PV); |
|
|
3193 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
3194 | SvPOK_only (data_sv); |
|
|
3195 | |
|
|
3196 | { |
|
|
3197 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3198 | |
|
|
3199 | data->errorno = errno; |
|
|
3200 | data->laststype = PL_laststype; |
|
|
3201 | data->laststatval = PL_laststatval; |
|
|
3202 | data->statcache = PL_statcache; |
|
|
3203 | } |
|
|
3204 | |
|
|
3205 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
3206 | { |
|
|
3207 | int i; |
|
|
3208 | |
|
|
3209 | for (i = 0; i < items; ++i) |
|
|
3210 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
3211 | } |
|
|
3212 | |
|
|
3213 | av_push (state, data_sv); |
|
|
3214 | |
|
|
3215 | api_ready (aTHX_ coro); |
|
|
3216 | SvREFCNT_dec (coro); |
|
|
3217 | SvREFCNT_dec ((AV *)state); |
|
|
3218 | } |
|
|
3219 | |
|
|
3220 | static int |
|
|
3221 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
3222 | { |
|
|
3223 | AV *state = (AV *)frame->data; |
|
|
3224 | |
|
|
3225 | /* if we are about to throw, return early */ |
|
|
3226 | /* this does not cancel the aio request, but at least */ |
|
|
3227 | /* it quickly returns */ |
|
|
3228 | if (CORO_THROW) |
|
|
3229 | return 0; |
|
|
3230 | |
|
|
3231 | /* one element that is an RV? repeat! */ |
|
|
3232 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
3233 | return 1; |
|
|
3234 | |
|
|
3235 | /* restore status */ |
|
|
3236 | { |
|
|
3237 | SV *data_sv = av_pop (state); |
|
|
3238 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3239 | |
|
|
3240 | errno = data->errorno; |
|
|
3241 | PL_laststype = data->laststype; |
|
|
3242 | PL_laststatval = data->laststatval; |
|
|
3243 | PL_statcache = data->statcache; |
|
|
3244 | |
|
|
3245 | SvREFCNT_dec (data_sv); |
|
|
3246 | } |
|
|
3247 | |
|
|
3248 | /* push result values */ |
|
|
3249 | { |
|
|
3250 | dSP; |
|
|
3251 | int i; |
|
|
3252 | |
|
|
3253 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
3254 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
3255 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
3256 | |
|
|
3257 | PUTBACK; |
|
|
3258 | } |
|
|
3259 | |
|
|
3260 | return 0; |
|
|
3261 | } |
|
|
3262 | |
|
|
3263 | static void |
|
|
3264 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3265 | { |
|
|
3266 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
3267 | SV *coro_hv = SvRV (coro_current); |
|
|
3268 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
3269 | |
|
|
3270 | /* put our coroutine id on the state arg */ |
|
|
3271 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
3272 | |
|
|
3273 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
3274 | if (coro->prio) |
|
|
3275 | { |
|
|
3276 | dSP; |
|
|
3277 | |
|
|
3278 | static SV *prio_cv; |
|
|
3279 | static SV *prio_sv; |
|
|
3280 | |
|
|
3281 | if (ecb_expect_false (!prio_cv)) |
|
|
3282 | { |
|
|
3283 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
3284 | prio_sv = newSViv (0); |
|
|
3285 | } |
|
|
3286 | |
|
|
3287 | PUSHMARK (SP); |
|
|
3288 | sv_setiv (prio_sv, coro->prio); |
|
|
3289 | XPUSHs (prio_sv); |
|
|
3290 | |
|
|
3291 | PUTBACK; |
|
|
3292 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
3293 | } |
|
|
3294 | |
|
|
3295 | /* now call the original request */ |
|
|
3296 | { |
|
|
3297 | dSP; |
|
|
3298 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
3299 | int i; |
|
|
3300 | |
|
|
3301 | PUSHMARK (SP); |
|
|
3302 | |
|
|
3303 | /* first push all args to the stack */ |
|
|
3304 | EXTEND (SP, items + 1); |
|
|
3305 | |
|
|
3306 | for (i = 0; i < items; ++i) |
|
|
3307 | PUSHs (arg [i]); |
|
|
3308 | |
|
|
3309 | /* now push the callback closure */ |
|
|
3310 | PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
3311 | |
|
|
3312 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
3313 | PUTBACK; |
|
|
3314 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
3315 | } |
|
|
3316 | |
|
|
3317 | /* now that the request is going, we loop till we have a result */ |
|
|
3318 | frame->data = (void *)state; |
|
|
3319 | frame->prepare = prepare_schedule; |
|
|
3320 | frame->check = slf_check_aio_req; |
|
|
3321 | } |
|
|
3322 | |
|
|
3323 | static void |
|
|
3324 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
3325 | { |
|
|
3326 | dXSARGS; |
|
|
3327 | |
|
|
3328 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
3329 | |
|
|
3330 | XSRETURN_EMPTY; |
|
|
3331 | } |
|
|
3332 | |
|
|
3333 | /*****************************************************************************/ |
|
|
3334 | |
|
|
3335 | #if CORO_CLONE |
|
|
3336 | # include "clone.c" |
|
|
3337 | #endif |
|
|
3338 | |
|
|
3339 | /*****************************************************************************/ |
|
|
3340 | |
|
|
3341 | static SV * |
|
|
3342 | coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro) |
|
|
3343 | { |
|
|
3344 | SV *coro_sv; |
|
|
3345 | struct coro *coro; |
|
|
3346 | MAGIC *mg; |
|
|
3347 | HV *hv; |
|
|
3348 | SV *cb; |
|
|
3349 | int i; |
|
|
3350 | |
|
|
3351 | if (argc > 0) |
|
|
3352 | { |
|
|
3353 | cb = s_get_cv_croak (argv [0]); |
|
|
3354 | |
|
|
3355 | if (!is_coro) |
|
|
3356 | { |
|
|
3357 | if (CvISXSUB (cb)) |
|
|
3358 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
3359 | |
|
|
3360 | if (!CvROOT (cb)) |
|
|
3361 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3362 | } |
|
|
3363 | } |
|
|
3364 | |
|
|
3365 | Newz (0, coro, 1, struct coro); |
|
|
3366 | coro->args = newAV (); |
|
|
3367 | coro->flags = CF_NEW; |
|
|
3368 | |
|
|
3369 | if (coro_first) coro_first->prev = coro; |
|
|
3370 | coro->next = coro_first; |
|
|
3371 | coro_first = coro; |
|
|
3372 | |
|
|
3373 | coro->hv = hv = newHV (); |
|
|
3374 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
3375 | mg->mg_flags |= MGf_DUP; |
|
|
3376 | coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash); |
|
|
3377 | |
|
|
3378 | if (argc > 0) |
|
|
3379 | { |
|
|
3380 | av_extend (coro->args, argc + is_coro - 1); |
|
|
3381 | |
|
|
3382 | if (is_coro) |
|
|
3383 | { |
|
|
3384 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3385 | cb = (SV *)cv_coro_run; |
|
|
3386 | } |
|
|
3387 | |
|
|
3388 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3389 | |
|
|
3390 | for (i = 1; i < argc; i++) |
|
|
3391 | av_push (coro->args, newSVsv (argv [i])); |
|
|
3392 | } |
|
|
3393 | |
|
|
3394 | return coro_sv; |
|
|
3395 | } |
|
|
3396 | |
|
|
3397 | #ifndef __cplusplus |
|
|
3398 | ecb_cold XS(boot_Coro__State); |
|
|
3399 | #endif |
|
|
3400 | |
|
|
3401 | #if CORO_JIT |
|
|
3402 | |
|
|
3403 | static void ecb_noinline ecb_cold |
|
|
3404 | pushav_4uv (pTHX_ UV a, UV b, UV c, UV d) |
|
|
3405 | { |
|
|
3406 | dSP; |
|
|
3407 | AV *av = newAV (); |
|
|
3408 | |
|
|
3409 | av_store (av, 3, newSVuv (d)); |
|
|
3410 | av_store (av, 2, newSVuv (c)); |
|
|
3411 | av_store (av, 1, newSVuv (b)); |
|
|
3412 | av_store (av, 0, newSVuv (a)); |
|
|
3413 | |
|
|
3414 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
3415 | |
|
|
3416 | PUTBACK; |
|
|
3417 | } |
|
|
3418 | |
|
|
3419 | static void ecb_noinline ecb_cold |
|
|
3420 | jit_init (pTHX) |
|
|
3421 | { |
|
|
3422 | dSP; |
|
|
3423 | SV *load, *save; |
|
|
3424 | char *map_base; |
|
|
3425 | char *load_ptr, *save_ptr; |
|
|
3426 | STRLEN load_len, save_len, map_len; |
|
|
3427 | int count; |
|
|
3428 | |
|
|
3429 | eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1); |
|
|
3430 | |
|
|
3431 | PUSHMARK (SP); |
|
|
3432 | #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type)); |
|
|
3433 | #include "state.h" |
|
|
3434 | count = call_pv ("Coro::State::_jit", G_ARRAY); |
|
|
3435 | SPAGAIN; |
|
|
3436 | |
|
|
3437 | save = POPs; save_ptr = SvPVbyte (save, save_len); |
|
|
3438 | load = POPs; load_ptr = SvPVbyte (load, load_len); |
|
|
3439 | |
|
|
3440 | map_len = load_len + save_len + 16; |
|
|
3441 | |
|
|
3442 | map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
|
|
3443 | |
|
|
3444 | assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED)); |
|
|
3445 | |
|
|
3446 | load_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3447 | memcpy (map_base, load_ptr, load_len); |
|
|
3448 | |
|
|
3449 | map_base += (load_len + 15) & ~15; |
|
|
3450 | |
|
|
3451 | save_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3452 | memcpy (map_base, save_ptr, save_len); |
|
|
3453 | |
|
|
3454 | /* we are good citizens and try to make the page read-only, so the evil evil */ |
|
|
3455 | /* hackers might have it a bit more difficult */ |
|
|
3456 | mprotect (map_base, map_len, PROT_READ | PROT_EXEC); |
|
|
3457 | |
|
|
3458 | PUTBACK; |
|
|
3459 | eval_pv ("undef &Coro::State::_jit", 1); |
|
|
3460 | } |
|
|
3461 | |
|
|
3462 | #endif |
1383 | |
3463 | |
1384 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3464 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1385 | |
3465 | |
1386 | PROTOTYPES: DISABLE |
3466 | PROTOTYPES: DISABLE |
1387 | |
3467 | |
1388 | BOOT: |
3468 | BOOT: |
1389 | { |
3469 | { |
1390 | #ifdef USE_ITHREADS |
3470 | #ifdef USE_ITHREADS |
1391 | MUTEX_INIT (&coro_mutex); |
3471 | # if CORO_PTHREAD |
|
|
3472 | coro_thx = PERL_GET_CONTEXT; |
|
|
3473 | # endif |
1392 | #endif |
3474 | #endif |
1393 | BOOT_PAGESIZE; |
3475 | BOOT_PAGESIZE; |
|
|
3476 | |
|
|
3477 | /* perl defines these to check for existance first, but why it doesn't */ |
|
|
3478 | /* just create them one at init time is not clear to me, except for */ |
|
|
3479 | /* programs trying to delete them, but... */ |
|
|
3480 | /* anyway, we declare this as invalid and make sure they are initialised here */ |
|
|
3481 | DEFSV; |
|
|
3482 | ERRSV; |
|
|
3483 | |
|
|
3484 | cctx_current = cctx_new_empty (); |
|
|
3485 | |
|
|
3486 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
3487 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
3488 | |
|
|
3489 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
3490 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
3491 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
3492 | |
|
|
3493 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
3494 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
3495 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1394 | |
3496 | |
1395 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
3497 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1396 | |
3498 | |
1397 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
3499 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1398 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
3500 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1399 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
3501 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
1400 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
3502 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1401 | |
3503 | |
1402 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
|
|
1403 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
|
|
1404 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1405 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1406 | newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH)); |
|
|
1407 | newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); |
|
|
1408 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
|
|
1409 | |
|
|
1410 | main_mainstack = PL_mainstack; |
3504 | main_mainstack = PL_mainstack; |
1411 | main_top_env = PL_top_env; |
3505 | main_top_env = PL_top_env; |
1412 | |
3506 | |
1413 | while (main_top_env->je_prev) |
3507 | while (main_top_env->je_prev) |
1414 | main_top_env = main_top_env->je_prev; |
3508 | main_top_env = main_top_env->je_prev; |
1415 | |
3509 | |
|
|
3510 | { |
|
|
3511 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
3512 | |
|
|
3513 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
3514 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
3515 | |
|
|
3516 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
3517 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
3518 | } |
|
|
3519 | |
1416 | coroapi.ver = CORO_API_VERSION; |
3520 | coroapi.ver = CORO_API_VERSION; |
|
|
3521 | coroapi.rev = CORO_API_REVISION; |
|
|
3522 | |
1417 | coroapi.transfer = api_transfer; |
3523 | coroapi.transfer = api_transfer; |
1418 | |
3524 | |
|
|
3525 | coroapi.sv_state = SvSTATE_; |
|
|
3526 | coroapi.execute_slf = api_execute_slf; |
|
|
3527 | coroapi.prepare_nop = prepare_nop; |
|
|
3528 | coroapi.prepare_schedule = prepare_schedule; |
|
|
3529 | coroapi.prepare_cede = prepare_cede; |
|
|
3530 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
3531 | |
|
|
3532 | time_init (aTHX); |
|
|
3533 | |
1419 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
3534 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
|
|
3535 | #if CORO_JIT |
|
|
3536 | PUTBACK; |
|
|
3537 | jit_init (aTHX); |
|
|
3538 | SPAGAIN; |
|
|
3539 | #endif |
1420 | } |
3540 | } |
1421 | |
3541 | |
1422 | SV * |
3542 | SV * |
1423 | new (char *klass, ...) |
3543 | new (SV *klass, ...) |
|
|
3544 | ALIAS: |
|
|
3545 | Coro::new = 1 |
1424 | CODE: |
3546 | CODE: |
1425 | { |
3547 | RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix); |
1426 | struct coro *coro; |
|
|
1427 | HV *hv; |
|
|
1428 | int i; |
|
|
1429 | |
|
|
1430 | Newz (0, coro, 1, struct coro); |
|
|
1431 | coro->args = newAV (); |
|
|
1432 | coro->save = CORO_SAVE_DEF; |
|
|
1433 | coro->flags = CF_NEW; |
|
|
1434 | |
|
|
1435 | if (coro_first) coro_first->prev = coro; |
|
|
1436 | coro->next = coro_first; |
|
|
1437 | coro_first = coro; |
|
|
1438 | |
|
|
1439 | coro->hv = hv = newHV (); |
|
|
1440 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
|
|
1441 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
1442 | |
|
|
1443 | for (i = 1; i < items; i++) |
|
|
1444 | av_push (coro->args, newSVsv (ST (i))); |
|
|
1445 | } |
|
|
1446 | OUTPUT: |
|
|
1447 | RETVAL |
|
|
1448 | |
|
|
1449 | int |
|
|
1450 | save (SV *coro, int new_save = -1) |
|
|
1451 | CODE: |
|
|
1452 | RETVAL = api_save (coro, new_save); |
|
|
1453 | OUTPUT: |
3548 | OUTPUT: |
1454 | RETVAL |
3549 | RETVAL |
1455 | |
3550 | |
1456 | int |
3551 | void |
1457 | save_also (SV *coro_sv, int save_also) |
3552 | transfer (...) |
|
|
3553 | PROTOTYPE: $$ |
1458 | CODE: |
3554 | CODE: |
1459 | { |
3555 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1460 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1461 | RETVAL = coro->save; |
|
|
1462 | coro->save |= save_also; |
|
|
1463 | } |
|
|
1464 | OUTPUT: |
|
|
1465 | RETVAL |
|
|
1466 | |
3556 | |
1467 | void |
3557 | void |
1468 | _set_stacklevel (...) |
|
|
1469 | ALIAS: |
|
|
1470 | Coro::State::transfer = 1 |
|
|
1471 | Coro::schedule = 2 |
|
|
1472 | Coro::cede = 3 |
|
|
1473 | Coro::cede_notself = 4 |
|
|
1474 | CODE: |
|
|
1475 | { |
|
|
1476 | struct transfer_args ta; |
|
|
1477 | |
|
|
1478 | switch (ix) |
|
|
1479 | { |
|
|
1480 | case 0: |
|
|
1481 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1482 | ta.next = 0; |
|
|
1483 | break; |
|
|
1484 | |
|
|
1485 | case 1: |
|
|
1486 | if (items != 2) |
|
|
1487 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1488 | |
|
|
1489 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1490 | break; |
|
|
1491 | |
|
|
1492 | case 2: |
|
|
1493 | prepare_schedule (aTHX_ &ta); |
|
|
1494 | break; |
|
|
1495 | |
|
|
1496 | case 3: |
|
|
1497 | prepare_cede (aTHX_ &ta); |
|
|
1498 | break; |
|
|
1499 | |
|
|
1500 | case 4: |
|
|
1501 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1502 | XSRETURN_EMPTY; |
|
|
1503 | |
|
|
1504 | break; |
|
|
1505 | } |
|
|
1506 | |
|
|
1507 | BARRIER; |
|
|
1508 | TRANSFER (ta); |
|
|
1509 | |
|
|
1510 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
|
|
1511 | XSRETURN_YES; |
|
|
1512 | } |
|
|
1513 | |
|
|
1514 | bool |
|
|
1515 | _destroy (SV *coro_sv) |
|
|
1516 | CODE: |
|
|
1517 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
1518 | OUTPUT: |
|
|
1519 | RETVAL |
|
|
1520 | |
|
|
1521 | void |
|
|
1522 | _exit (code) |
3558 | _exit (int code) |
1523 | int code |
|
|
1524 | PROTOTYPE: $ |
3559 | PROTOTYPE: $ |
1525 | CODE: |
3560 | CODE: |
1526 | _exit (code); |
3561 | _exit (code); |
1527 | |
3562 | |
|
|
3563 | SV * |
|
|
3564 | clone (Coro::State coro) |
|
|
3565 | CODE: |
|
|
3566 | { |
|
|
3567 | #if CORO_CLONE |
|
|
3568 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3569 | MAGIC *mg; |
|
|
3570 | /* TODO: too much duplication */ |
|
|
3571 | ncoro->hv = newHV (); |
|
|
3572 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3573 | mg->mg_flags |= MGf_DUP; |
|
|
3574 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3575 | #else |
|
|
3576 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3577 | #endif |
|
|
3578 | } |
|
|
3579 | OUTPUT: |
|
|
3580 | RETVAL |
|
|
3581 | |
1528 | int |
3582 | int |
1529 | cctx_stacksize (int new_stacksize = 0) |
3583 | cctx_stacksize (int new_stacksize = 0) |
|
|
3584 | PROTOTYPE: ;$ |
1530 | CODE: |
3585 | CODE: |
1531 | RETVAL = coro_stacksize; |
3586 | RETVAL = cctx_stacksize; |
1532 | if (new_stacksize) |
3587 | if (new_stacksize) |
|
|
3588 | { |
1533 | coro_stacksize = new_stacksize; |
3589 | cctx_stacksize = new_stacksize; |
|
|
3590 | ++cctx_gen; |
|
|
3591 | } |
1534 | OUTPUT: |
3592 | OUTPUT: |
1535 | RETVAL |
3593 | RETVAL |
1536 | |
3594 | |
1537 | int |
3595 | int |
|
|
3596 | cctx_max_idle (int max_idle = 0) |
|
|
3597 | PROTOTYPE: ;$ |
|
|
3598 | CODE: |
|
|
3599 | RETVAL = cctx_max_idle; |
|
|
3600 | if (max_idle > 1) |
|
|
3601 | cctx_max_idle = max_idle; |
|
|
3602 | OUTPUT: |
|
|
3603 | RETVAL |
|
|
3604 | |
|
|
3605 | int |
1538 | cctx_count () |
3606 | cctx_count () |
|
|
3607 | PROTOTYPE: |
1539 | CODE: |
3608 | CODE: |
1540 | RETVAL = cctx_count; |
3609 | RETVAL = cctx_count; |
1541 | OUTPUT: |
3610 | OUTPUT: |
1542 | RETVAL |
3611 | RETVAL |
1543 | |
3612 | |
1544 | int |
3613 | int |
1545 | cctx_idle () |
3614 | cctx_idle () |
|
|
3615 | PROTOTYPE: |
1546 | CODE: |
3616 | CODE: |
1547 | RETVAL = cctx_idle; |
3617 | RETVAL = cctx_idle; |
1548 | OUTPUT: |
3618 | OUTPUT: |
1549 | RETVAL |
3619 | RETVAL |
1550 | |
3620 | |
1551 | void |
3621 | void |
1552 | list () |
3622 | list () |
|
|
3623 | PROTOTYPE: |
1553 | PPCODE: |
3624 | PPCODE: |
1554 | { |
3625 | { |
1555 | struct coro *coro; |
3626 | struct coro *coro; |
1556 | for (coro = coro_first; coro; coro = coro->next) |
3627 | for (coro = coro_first; coro; coro = coro->next) |
1557 | if (coro->hv) |
3628 | if (coro->hv) |
1558 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
3629 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
1559 | } |
3630 | } |
1560 | |
3631 | |
… | |
… | |
1562 | call (Coro::State coro, SV *coderef) |
3633 | call (Coro::State coro, SV *coderef) |
1563 | ALIAS: |
3634 | ALIAS: |
1564 | eval = 1 |
3635 | eval = 1 |
1565 | CODE: |
3636 | CODE: |
1566 | { |
3637 | { |
1567 | if (coro->mainstack) |
3638 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1568 | { |
3639 | { |
1569 | struct coro temp; |
3640 | struct coro *current = SvSTATE_current; |
1570 | Zero (&temp, 1, struct coro); |
3641 | struct CoroSLF slf_save; |
1571 | temp.save = CORO_SAVE_ALL; |
|
|
1572 | |
3642 | |
1573 | if (!(coro->flags & CF_RUNNING)) |
3643 | if (current != coro) |
1574 | { |
3644 | { |
|
|
3645 | PUTBACK; |
1575 | save_perl (aTHX_ &temp); |
3646 | save_perl (aTHX_ current); |
1576 | load_perl (aTHX_ coro); |
3647 | load_perl (aTHX_ coro); |
|
|
3648 | /* the coro is most likely in an active SLF call. |
|
|
3649 | * while not strictly required (the code we execute is |
|
|
3650 | * not allowed to call any SLF functions), it's cleaner |
|
|
3651 | * to reinitialise the slf_frame and restore it later. |
|
|
3652 | * This might one day allow us to actually do SLF calls |
|
|
3653 | * from code executed here. |
|
|
3654 | */ |
|
|
3655 | slf_save = slf_frame; |
|
|
3656 | slf_frame.prepare = 0; |
|
|
3657 | SPAGAIN; |
1577 | } |
3658 | } |
1578 | |
3659 | |
1579 | { |
3660 | PUSHSTACK; |
1580 | dSP; |
3661 | |
1581 | ENTER; |
|
|
1582 | SAVETMPS; |
|
|
1583 | PUSHMARK (SP); |
3662 | PUSHMARK (SP); |
1584 | PUTBACK; |
3663 | PUTBACK; |
|
|
3664 | |
1585 | if (ix) |
3665 | if (ix) |
1586 | eval_sv (coderef, 0); |
3666 | eval_sv (coderef, 0); |
1587 | else |
3667 | else |
1588 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3668 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3669 | |
|
|
3670 | POPSTACK; |
1589 | SPAGAIN; |
3671 | SPAGAIN; |
1590 | FREETMPS; |
|
|
1591 | LEAVE; |
|
|
1592 | PUTBACK; |
|
|
1593 | } |
|
|
1594 | |
3672 | |
1595 | if (!(coro->flags & CF_RUNNING)) |
3673 | if (current != coro) |
1596 | { |
3674 | { |
|
|
3675 | PUTBACK; |
|
|
3676 | slf_frame = slf_save; |
1597 | save_perl (aTHX_ coro); |
3677 | save_perl (aTHX_ coro); |
1598 | load_perl (aTHX_ &temp); |
3678 | load_perl (aTHX_ current); |
|
|
3679 | SPAGAIN; |
1599 | } |
3680 | } |
1600 | } |
3681 | } |
1601 | } |
3682 | } |
1602 | |
3683 | |
1603 | SV * |
3684 | SV * |
… | |
… | |
1605 | PROTOTYPE: $ |
3686 | PROTOTYPE: $ |
1606 | ALIAS: |
3687 | ALIAS: |
1607 | is_ready = CF_READY |
3688 | is_ready = CF_READY |
1608 | is_running = CF_RUNNING |
3689 | is_running = CF_RUNNING |
1609 | is_new = CF_NEW |
3690 | is_new = CF_NEW |
1610 | is_destroyed = CF_DESTROYED |
3691 | is_destroyed = CF_ZOMBIE |
|
|
3692 | is_zombie = CF_ZOMBIE |
|
|
3693 | is_suspended = CF_SUSPENDED |
1611 | CODE: |
3694 | CODE: |
1612 | RETVAL = boolSV (coro->flags & ix); |
3695 | RETVAL = boolSV (coro->flags & ix); |
1613 | OUTPUT: |
3696 | OUTPUT: |
1614 | RETVAL |
3697 | RETVAL |
1615 | |
3698 | |
1616 | void |
3699 | void |
|
|
3700 | throw (SV *self, SV *exception = &PL_sv_undef) |
|
|
3701 | PROTOTYPE: $;$ |
|
|
3702 | CODE: |
|
|
3703 | { |
|
|
3704 | struct coro *coro = SvSTATE (self); |
|
|
3705 | struct coro *current = SvSTATE_current; |
|
|
3706 | SV **exceptionp = coro == current ? &CORO_THROW : &coro->except; |
|
|
3707 | SvREFCNT_dec (*exceptionp); |
|
|
3708 | SvGETMAGIC (exception); |
|
|
3709 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
|
|
3710 | |
|
|
3711 | api_ready (aTHX_ self); |
|
|
3712 | } |
|
|
3713 | |
|
|
3714 | void |
1617 | api_trace (Coro::State coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3715 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3716 | PROTOTYPE: $;$ |
|
|
3717 | C_ARGS: aTHX_ coro, flags |
1618 | |
3718 | |
1619 | SV * |
3719 | SV * |
1620 | has_stack (Coro::State coro) |
3720 | has_cctx (Coro::State coro) |
1621 | PROTOTYPE: $ |
3721 | PROTOTYPE: $ |
1622 | CODE: |
3722 | CODE: |
1623 | RETVAL = boolSV (!!coro->cctx); |
3723 | /* maybe manage the running flag differently */ |
|
|
3724 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
1624 | OUTPUT: |
3725 | OUTPUT: |
1625 | RETVAL |
3726 | RETVAL |
1626 | |
3727 | |
1627 | int |
3728 | int |
1628 | is_traced (Coro::State coro) |
3729 | is_traced (Coro::State coro) |
… | |
… | |
1630 | CODE: |
3731 | CODE: |
1631 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
3732 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
1632 | OUTPUT: |
3733 | OUTPUT: |
1633 | RETVAL |
3734 | RETVAL |
1634 | |
3735 | |
1635 | IV |
3736 | UV |
1636 | rss (Coro::State coro) |
3737 | rss (Coro::State coro) |
1637 | PROTOTYPE: $ |
3738 | PROTOTYPE: $ |
1638 | ALIAS: |
3739 | ALIAS: |
1639 | usecount = 1 |
3740 | usecount = 1 |
1640 | CODE: |
3741 | CODE: |
… | |
… | |
1644 | case 1: RETVAL = coro->usecount; break; |
3745 | case 1: RETVAL = coro->usecount; break; |
1645 | } |
3746 | } |
1646 | OUTPUT: |
3747 | OUTPUT: |
1647 | RETVAL |
3748 | RETVAL |
1648 | |
3749 | |
|
|
3750 | void |
|
|
3751 | force_cctx () |
|
|
3752 | PROTOTYPE: |
|
|
3753 | CODE: |
|
|
3754 | cctx_current->idle_sp = 0; |
|
|
3755 | |
|
|
3756 | void |
|
|
3757 | swap_defsv (Coro::State self) |
|
|
3758 | PROTOTYPE: $ |
|
|
3759 | ALIAS: |
|
|
3760 | swap_defav = 1 |
|
|
3761 | CODE: |
|
|
3762 | if (!self->slot) |
|
|
3763 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
3764 | else |
|
|
3765 | { |
|
|
3766 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
3767 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
3768 | |
|
|
3769 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
3770 | } |
|
|
3771 | |
|
|
3772 | void |
|
|
3773 | cancel (Coro::State self) |
|
|
3774 | CODE: |
|
|
3775 | coro_state_destroy (aTHX_ self); |
|
|
3776 | |
|
|
3777 | SV * |
|
|
3778 | enable_times (int enabled = enable_times) |
|
|
3779 | CODE: |
|
|
3780 | { |
|
|
3781 | RETVAL = boolSV (enable_times); |
|
|
3782 | |
|
|
3783 | if (enabled != enable_times) |
|
|
3784 | { |
|
|
3785 | enable_times = enabled; |
|
|
3786 | |
|
|
3787 | coro_times_update (); |
|
|
3788 | (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current)); |
|
|
3789 | } |
|
|
3790 | } |
|
|
3791 | OUTPUT: |
|
|
3792 | RETVAL |
|
|
3793 | |
|
|
3794 | void |
|
|
3795 | times (Coro::State self) |
|
|
3796 | PPCODE: |
|
|
3797 | { |
|
|
3798 | struct coro *current = SvSTATE (coro_current); |
|
|
3799 | |
|
|
3800 | if (ecb_expect_false (current == self)) |
|
|
3801 | { |
|
|
3802 | coro_times_update (); |
|
|
3803 | coro_times_add (SvSTATE (coro_current)); |
|
|
3804 | } |
|
|
3805 | |
|
|
3806 | EXTEND (SP, 2); |
|
|
3807 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
|
|
3808 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
|
|
3809 | |
|
|
3810 | if (ecb_expect_false (current == self)) |
|
|
3811 | coro_times_sub (SvSTATE (coro_current)); |
|
|
3812 | } |
|
|
3813 | |
|
|
3814 | void |
|
|
3815 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
|
|
3816 | CODE: |
|
|
3817 | { |
|
|
3818 | struct coro *current = SvSTATE_current; |
|
|
3819 | |
|
|
3820 | if (current == coro) |
|
|
3821 | SWAP_SVS (current); |
|
|
3822 | |
|
|
3823 | if (!coro->swap_sv) |
|
|
3824 | coro->swap_sv = newAV (); |
|
|
3825 | |
|
|
3826 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv ))); |
|
|
3827 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv))); |
|
|
3828 | |
|
|
3829 | if (current == coro) |
|
|
3830 | SWAP_SVS (current); |
|
|
3831 | } |
|
|
3832 | |
1649 | |
3833 | |
1650 | MODULE = Coro::State PACKAGE = Coro |
3834 | MODULE = Coro::State PACKAGE = Coro |
1651 | |
3835 | |
1652 | BOOT: |
3836 | BOOT: |
1653 | { |
3837 | { |
1654 | int i; |
|
|
1655 | |
|
|
1656 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
3838 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
1657 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
3839 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
3840 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
|
|
3841 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
1658 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
3842 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3843 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3844 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3845 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
1659 | |
3846 | |
1660 | coro_current = get_sv ("Coro::current", FALSE); |
3847 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
1661 | SvREADONLY_on (coro_current); |
3848 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3849 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3850 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
1662 | |
3851 | |
1663 | coro_stash = gv_stashpv ("Coro", TRUE); |
3852 | coro_stash = gv_stashpv ("Coro", TRUE); |
1664 | |
3853 | |
1665 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3854 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
1666 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3855 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
1667 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
3856 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
1668 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
3857 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
1669 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
3858 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
1670 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
3859 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
1671 | |
|
|
1672 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
1673 | coro_ready[i] = newAV (); |
|
|
1674 | |
3860 | |
1675 | { |
3861 | { |
1676 | SV *sv = perl_get_sv("Coro::API", 1); |
3862 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1677 | |
3863 | |
1678 | coroapi.schedule = api_schedule; |
3864 | coroapi.schedule = api_schedule; |
1679 | coroapi.save = api_save; |
3865 | coroapi.schedule_to = api_schedule_to; |
1680 | coroapi.cede = api_cede; |
3866 | coroapi.cede = api_cede; |
1681 | coroapi.cede_notself = api_cede_notself; |
3867 | coroapi.cede_notself = api_cede_notself; |
1682 | coroapi.ready = api_ready; |
3868 | coroapi.ready = api_ready; |
1683 | coroapi.is_ready = api_is_ready; |
3869 | coroapi.is_ready = api_is_ready; |
1684 | coroapi.nready = &coro_nready; |
3870 | coroapi.nready = coro_nready; |
1685 | coroapi.current = coro_current; |
3871 | coroapi.current = coro_current; |
1686 | |
3872 | |
1687 | GCoroAPI = &coroapi; |
3873 | /*GCoroAPI = &coroapi;*/ |
1688 | sv_setiv (sv, (IV)&coroapi); |
3874 | sv_setiv (sv, (IV)&coroapi); |
1689 | SvREADONLY_on (sv); |
3875 | SvREADONLY_on (sv); |
1690 | } |
3876 | } |
1691 | } |
3877 | } |
|
|
3878 | |
|
|
3879 | SV * |
|
|
3880 | async (...) |
|
|
3881 | PROTOTYPE: &@ |
|
|
3882 | CODE: |
|
|
3883 | RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); |
|
|
3884 | api_ready (aTHX_ RETVAL); |
|
|
3885 | OUTPUT: |
|
|
3886 | RETVAL |
|
|
3887 | |
|
|
3888 | void |
|
|
3889 | _destroy (Coro::State coro) |
|
|
3890 | CODE: |
|
|
3891 | /* used by the manager thread */ |
|
|
3892 | coro_state_destroy (aTHX_ coro); |
|
|
3893 | |
|
|
3894 | void |
|
|
3895 | on_destroy (Coro::State coro, SV *cb) |
|
|
3896 | CODE: |
|
|
3897 | coro_push_on_destroy (aTHX_ coro, newSVsv (cb)); |
|
|
3898 | |
|
|
3899 | void |
|
|
3900 | join (...) |
|
|
3901 | CODE: |
|
|
3902 | CORO_EXECUTE_SLF_XS (slf_init_join); |
|
|
3903 | |
|
|
3904 | void |
|
|
3905 | terminate (...) |
|
|
3906 | CODE: |
|
|
3907 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3908 | |
|
|
3909 | void |
|
|
3910 | cancel (...) |
|
|
3911 | CODE: |
|
|
3912 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
|
|
3913 | |
|
|
3914 | int |
|
|
3915 | safe_cancel (Coro::State self, ...) |
|
|
3916 | C_ARGS: aTHX_ self, &ST (1), items - 1 |
|
|
3917 | |
|
|
3918 | void |
|
|
3919 | schedule (...) |
|
|
3920 | CODE: |
|
|
3921 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3922 | |
|
|
3923 | void |
|
|
3924 | schedule_to (...) |
|
|
3925 | CODE: |
|
|
3926 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3927 | |
|
|
3928 | void |
|
|
3929 | cede_to (...) |
|
|
3930 | CODE: |
|
|
3931 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
3932 | |
|
|
3933 | void |
|
|
3934 | cede (...) |
|
|
3935 | CODE: |
|
|
3936 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
3937 | |
|
|
3938 | void |
|
|
3939 | cede_notself (...) |
|
|
3940 | CODE: |
|
|
3941 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1692 | |
3942 | |
1693 | void |
3943 | void |
1694 | _set_current (SV *current) |
3944 | _set_current (SV *current) |
1695 | PROTOTYPE: $ |
3945 | PROTOTYPE: $ |
1696 | CODE: |
3946 | CODE: |
1697 | SvREFCNT_dec (SvRV (coro_current)); |
3947 | SvREFCNT_dec (SvRV (coro_current)); |
1698 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
3948 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
3949 | |
|
|
3950 | void |
|
|
3951 | _set_readyhook (SV *hook) |
|
|
3952 | PROTOTYPE: $ |
|
|
3953 | CODE: |
|
|
3954 | SvREFCNT_dec (coro_readyhook); |
|
|
3955 | SvGETMAGIC (hook); |
|
|
3956 | if (SvOK (hook)) |
|
|
3957 | { |
|
|
3958 | coro_readyhook = newSVsv (hook); |
|
|
3959 | CORO_READYHOOK = invoke_sv_ready_hook_helper; |
|
|
3960 | } |
|
|
3961 | else |
|
|
3962 | { |
|
|
3963 | coro_readyhook = 0; |
|
|
3964 | CORO_READYHOOK = 0; |
|
|
3965 | } |
1699 | |
3966 | |
1700 | int |
3967 | int |
1701 | prio (Coro::State coro, int newprio = 0) |
3968 | prio (Coro::State coro, int newprio = 0) |
|
|
3969 | PROTOTYPE: $;$ |
1702 | ALIAS: |
3970 | ALIAS: |
1703 | nice = 1 |
3971 | nice = 1 |
1704 | CODE: |
3972 | CODE: |
1705 | { |
3973 | { |
1706 | RETVAL = coro->prio; |
3974 | RETVAL = coro->prio; |
… | |
… | |
1708 | if (items > 1) |
3976 | if (items > 1) |
1709 | { |
3977 | { |
1710 | if (ix) |
3978 | if (ix) |
1711 | newprio = coro->prio - newprio; |
3979 | newprio = coro->prio - newprio; |
1712 | |
3980 | |
1713 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
3981 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
1714 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
3982 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
1715 | |
3983 | |
1716 | coro->prio = newprio; |
3984 | coro->prio = newprio; |
1717 | } |
3985 | } |
1718 | } |
3986 | } |
1719 | OUTPUT: |
3987 | OUTPUT: |
… | |
… | |
1721 | |
3989 | |
1722 | SV * |
3990 | SV * |
1723 | ready (SV *self) |
3991 | ready (SV *self) |
1724 | PROTOTYPE: $ |
3992 | PROTOTYPE: $ |
1725 | CODE: |
3993 | CODE: |
1726 | RETVAL = boolSV (api_ready (self)); |
3994 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1727 | OUTPUT: |
3995 | OUTPUT: |
1728 | RETVAL |
3996 | RETVAL |
1729 | |
3997 | |
1730 | int |
3998 | int |
1731 | nready (...) |
3999 | nready (...) |
… | |
… | |
1733 | CODE: |
4001 | CODE: |
1734 | RETVAL = coro_nready; |
4002 | RETVAL = coro_nready; |
1735 | OUTPUT: |
4003 | OUTPUT: |
1736 | RETVAL |
4004 | RETVAL |
1737 | |
4005 | |
1738 | # for async_pool speedup |
|
|
1739 | void |
4006 | void |
1740 | _pool_1 (SV *cb) |
4007 | suspend (Coro::State self) |
|
|
4008 | PROTOTYPE: $ |
1741 | CODE: |
4009 | CODE: |
1742 | { |
4010 | self->flags |= CF_SUSPENDED; |
1743 | int i, len; |
|
|
1744 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1745 | AV *defav = GvAV (PL_defgv); |
|
|
1746 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
1747 | AV *invoke_av; |
|
|
1748 | |
4011 | |
1749 | if (!invoke) |
4012 | void |
1750 | croak ("\3terminate\2\n"); |
4013 | resume (Coro::State self) |
|
|
4014 | PROTOTYPE: $ |
|
|
4015 | CODE: |
|
|
4016 | self->flags &= ~CF_SUSPENDED; |
1751 | |
4017 | |
1752 | hv_store (hv, "desc", sizeof ("desc") - 1, |
4018 | void |
1753 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
4019 | _pool_handler (...) |
|
|
4020 | CODE: |
|
|
4021 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
1754 | |
4022 | |
1755 | invoke_av = (AV *)SvRV (invoke); |
4023 | void |
1756 | len = av_len (invoke_av); |
4024 | async_pool (SV *cv, ...) |
|
|
4025 | PROTOTYPE: &@ |
|
|
4026 | PPCODE: |
|
|
4027 | { |
|
|
4028 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
4029 | AV *av = newAV (); |
|
|
4030 | SV *cb = ST (0); |
|
|
4031 | int i; |
1757 | |
4032 | |
1758 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
4033 | av_extend (av, items - 2); |
|
|
4034 | for (i = 1; i < items; ++i) |
|
|
4035 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
1759 | |
4036 | |
1760 | if (len > 0) |
4037 | if ((SV *)hv == &PL_sv_undef) |
1761 | { |
4038 | { |
1762 | av_fill (defav, len - 1); |
4039 | SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1); |
1763 | for (i = 0; i < len; ++i) |
4040 | hv = (HV *)SvREFCNT_inc_NN (SvRV (sv)); |
1764 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
4041 | SvREFCNT_dec (sv); |
1765 | } |
4042 | } |
1766 | |
4043 | |
|
|
4044 | { |
|
|
4045 | struct coro *coro = SvSTATE_hv (hv); |
|
|
4046 | |
|
|
4047 | assert (!coro->invoke_cb); |
|
|
4048 | assert (!coro->invoke_av); |
|
|
4049 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
4050 | coro->invoke_av = av; |
|
|
4051 | } |
|
|
4052 | |
|
|
4053 | api_ready (aTHX_ (SV *)hv); |
|
|
4054 | |
|
|
4055 | if (GIMME_V != G_VOID) |
|
|
4056 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
4057 | else |
1767 | SvREFCNT_dec (invoke); |
4058 | SvREFCNT_dec (hv); |
1768 | } |
4059 | } |
1769 | |
4060 | |
1770 | void |
4061 | SV * |
1771 | _pool_2 (SV *cb) |
4062 | rouse_cb () |
|
|
4063 | PROTOTYPE: |
1772 | CODE: |
4064 | CODE: |
1773 | { |
4065 | RETVAL = coro_new_rouse_cb (aTHX); |
1774 | struct coro *coro = SvSTATE (coro_current); |
|
|
1775 | |
|
|
1776 | sv_setsv (cb, &PL_sv_undef); |
|
|
1777 | |
|
|
1778 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1779 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1780 | croak ("\3terminate\2\n"); |
|
|
1781 | |
|
|
1782 | av_clear (GvAV (PL_defgv)); |
|
|
1783 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
1784 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
1785 | coro->save = CORO_SAVE_DEF; |
|
|
1786 | coro->prio = 0; |
|
|
1787 | |
|
|
1788 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1789 | api_trace (coro, 0); |
|
|
1790 | |
|
|
1791 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1792 | } |
|
|
1793 | |
|
|
1794 | |
|
|
1795 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
1796 | |
|
|
1797 | SV * |
|
|
1798 | _get_state () |
|
|
1799 | CODE: |
|
|
1800 | { |
|
|
1801 | struct io_state *data; |
|
|
1802 | |
|
|
1803 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1804 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1805 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1806 | SvPOK_only (RETVAL); |
|
|
1807 | |
|
|
1808 | data->errorno = errno; |
|
|
1809 | data->laststype = PL_laststype; |
|
|
1810 | data->laststatval = PL_laststatval; |
|
|
1811 | data->statcache = PL_statcache; |
|
|
1812 | } |
|
|
1813 | OUTPUT: |
4066 | OUTPUT: |
1814 | RETVAL |
4067 | RETVAL |
1815 | |
4068 | |
1816 | void |
4069 | void |
1817 | _set_state (char *data_) |
4070 | rouse_wait (...) |
|
|
4071 | PROTOTYPE: ;$ |
|
|
4072 | PPCODE: |
|
|
4073 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
4074 | |
|
|
4075 | void |
|
|
4076 | on_enter (SV *block) |
|
|
4077 | ALIAS: |
|
|
4078 | on_leave = 1 |
1818 | PROTOTYPE: $ |
4079 | PROTOTYPE: & |
1819 | CODE: |
4080 | CODE: |
1820 | { |
4081 | { |
1821 | struct io_state *data = (void *)data_; |
4082 | struct coro *coro = SvSTATE_current; |
|
|
4083 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
1822 | |
4084 | |
1823 | errno = data->errorno; |
4085 | block = s_get_cv_croak (block); |
1824 | PL_laststype = data->laststype; |
|
|
1825 | PL_laststatval = data->laststatval; |
|
|
1826 | PL_statcache = data->statcache; |
|
|
1827 | } |
|
|
1828 | |
4086 | |
|
|
4087 | if (!*avp) |
|
|
4088 | *avp = newAV (); |
|
|
4089 | |
|
|
4090 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
4091 | |
|
|
4092 | if (!ix) |
|
|
4093 | on_enterleave_call (aTHX_ block); |
|
|
4094 | |
|
|
4095 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4096 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
4097 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4098 | } |
|
|
4099 | |
|
|
4100 | |
|
|
4101 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
4102 | |
|
|
4103 | BOOT: |
|
|
4104 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
4105 | |
|
|
4106 | |
|
|
4107 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
4108 | |
|
|
4109 | SV * |
|
|
4110 | new (SV *klass, SV *count = 0) |
|
|
4111 | CODE: |
|
|
4112 | { |
|
|
4113 | int semcnt = 1; |
|
|
4114 | |
|
|
4115 | if (count) |
|
|
4116 | { |
|
|
4117 | SvGETMAGIC (count); |
|
|
4118 | |
|
|
4119 | if (SvOK (count)) |
|
|
4120 | semcnt = SvIV (count); |
|
|
4121 | } |
|
|
4122 | |
|
|
4123 | RETVAL = sv_bless ( |
|
|
4124 | coro_waitarray_new (aTHX_ semcnt), |
|
|
4125 | GvSTASH (CvGV (cv)) |
|
|
4126 | ); |
|
|
4127 | } |
|
|
4128 | OUTPUT: |
|
|
4129 | RETVAL |
|
|
4130 | |
|
|
4131 | # helper for Coro::Channel and others |
|
|
4132 | SV * |
|
|
4133 | _alloc (int count) |
|
|
4134 | CODE: |
|
|
4135 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
4136 | OUTPUT: |
|
|
4137 | RETVAL |
|
|
4138 | |
|
|
4139 | SV * |
|
|
4140 | count (SV *self) |
|
|
4141 | CODE: |
|
|
4142 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
4143 | OUTPUT: |
|
|
4144 | RETVAL |
|
|
4145 | |
|
|
4146 | void |
|
|
4147 | up (SV *self, int adjust = 1) |
|
|
4148 | ALIAS: |
|
|
4149 | adjust = 1 |
|
|
4150 | CODE: |
|
|
4151 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
4152 | |
|
|
4153 | void |
|
|
4154 | down (...) |
|
|
4155 | CODE: |
|
|
4156 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
4157 | |
|
|
4158 | void |
|
|
4159 | wait (...) |
|
|
4160 | CODE: |
|
|
4161 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
4162 | |
|
|
4163 | void |
|
|
4164 | try (SV *self) |
|
|
4165 | PPCODE: |
|
|
4166 | { |
|
|
4167 | AV *av = (AV *)SvRV (self); |
|
|
4168 | SV *count_sv = AvARRAY (av)[0]; |
|
|
4169 | IV count = SvIVX (count_sv); |
|
|
4170 | |
|
|
4171 | if (count > 0) |
|
|
4172 | { |
|
|
4173 | --count; |
|
|
4174 | SvIVX (count_sv) = count; |
|
|
4175 | XSRETURN_YES; |
|
|
4176 | } |
|
|
4177 | else |
|
|
4178 | XSRETURN_NO; |
|
|
4179 | } |
|
|
4180 | |
|
|
4181 | void |
|
|
4182 | waiters (SV *self) |
|
|
4183 | PPCODE: |
|
|
4184 | { |
|
|
4185 | AV *av = (AV *)SvRV (self); |
|
|
4186 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
4187 | |
|
|
4188 | if (GIMME_V == G_SCALAR) |
|
|
4189 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
4190 | else |
|
|
4191 | { |
|
|
4192 | int i; |
|
|
4193 | EXTEND (SP, wcount); |
|
|
4194 | for (i = 1; i <= wcount; ++i) |
|
|
4195 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
4196 | } |
|
|
4197 | } |
|
|
4198 | |
|
|
4199 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
4200 | |
|
|
4201 | void |
|
|
4202 | _may_delete (SV *sem, int count, unsigned int extra_refs) |
|
|
4203 | PPCODE: |
|
|
4204 | { |
|
|
4205 | AV *av = (AV *)SvRV (sem); |
|
|
4206 | |
|
|
4207 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
|
|
4208 | && AvFILLp (av) == 0 /* no waiters, just count */ |
|
|
4209 | && SvIV (AvARRAY (av)[0]) == count) |
|
|
4210 | XSRETURN_YES; |
|
|
4211 | |
|
|
4212 | XSRETURN_NO; |
|
|
4213 | } |
|
|
4214 | |
|
|
4215 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
4216 | |
|
|
4217 | SV * |
|
|
4218 | new (SV *klass) |
|
|
4219 | CODE: |
|
|
4220 | RETVAL = sv_bless ( |
|
|
4221 | coro_waitarray_new (aTHX_ 0), |
|
|
4222 | GvSTASH (CvGV (cv)) |
|
|
4223 | ); |
|
|
4224 | OUTPUT: |
|
|
4225 | RETVAL |
|
|
4226 | |
|
|
4227 | void |
|
|
4228 | wait (...) |
|
|
4229 | CODE: |
|
|
4230 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
4231 | |
|
|
4232 | void |
|
|
4233 | broadcast (SV *self) |
|
|
4234 | CODE: |
|
|
4235 | { |
|
|
4236 | AV *av = (AV *)SvRV (self); |
|
|
4237 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
4238 | } |
|
|
4239 | |
|
|
4240 | void |
|
|
4241 | send (SV *self) |
|
|
4242 | CODE: |
|
|
4243 | { |
|
|
4244 | AV *av = (AV *)SvRV (self); |
|
|
4245 | |
|
|
4246 | if (AvFILLp (av)) |
|
|
4247 | coro_signal_wake (aTHX_ av, 1); |
|
|
4248 | else |
|
|
4249 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
4250 | } |
|
|
4251 | |
|
|
4252 | IV |
|
|
4253 | awaited (SV *self) |
|
|
4254 | CODE: |
|
|
4255 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
4256 | OUTPUT: |
|
|
4257 | RETVAL |
|
|
4258 | |
|
|
4259 | |
|
|
4260 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
4261 | |
|
|
4262 | BOOT: |
|
|
4263 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
4264 | |
|
|
4265 | void |
|
|
4266 | _schedule (...) |
|
|
4267 | CODE: |
|
|
4268 | { |
|
|
4269 | static int incede; |
|
|
4270 | |
|
|
4271 | api_cede_notself (aTHX); |
|
|
4272 | |
|
|
4273 | ++incede; |
|
|
4274 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
4275 | ; |
|
|
4276 | |
|
|
4277 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
4278 | if (coro_nready >= incede) |
|
|
4279 | { |
|
|
4280 | PUSHMARK (SP); |
|
|
4281 | PUTBACK; |
|
|
4282 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
4283 | } |
|
|
4284 | |
|
|
4285 | --incede; |
|
|
4286 | } |
|
|
4287 | |
|
|
4288 | |
|
|
4289 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
4290 | |
|
|
4291 | void |
|
|
4292 | _register (char *target, char *proto, SV *req) |
|
|
4293 | CODE: |
|
|
4294 | { |
|
|
4295 | SV *req_cv = s_get_cv_croak (req); |
|
|
4296 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
4297 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
4298 | sv_setpv ((SV *)slf_cv, proto); |
|
|
4299 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
4300 | } |
|
|
4301 | |
|
|
4302 | MODULE = Coro::State PACKAGE = Coro::Select |
|
|
4303 | |
|
|
4304 | void |
|
|
4305 | patch_pp_sselect () |
|
|
4306 | CODE: |
|
|
4307 | if (!coro_old_pp_sselect) |
|
|
4308 | { |
|
|
4309 | coro_select_select = (SV *)get_cv ("Coro::Select::select", 0); |
|
|
4310 | coro_old_pp_sselect = PL_ppaddr [OP_SSELECT]; |
|
|
4311 | PL_ppaddr [OP_SSELECT] = coro_pp_sselect; |
|
|
4312 | } |
|
|
4313 | |
|
|
4314 | void |
|
|
4315 | unpatch_pp_sselect () |
|
|
4316 | CODE: |
|
|
4317 | if (coro_old_pp_sselect) |
|
|
4318 | { |
|
|
4319 | PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; |
|
|
4320 | coro_old_pp_sselect = 0; |
|
|
4321 | } |
|
|
4322 | |