… | |
… | |
16 | |
16 | |
17 | #ifdef WIN32 |
17 | #ifdef WIN32 |
18 | # undef setjmp |
18 | # undef setjmp |
19 | # undef longjmp |
19 | # undef longjmp |
20 | # undef _exit |
20 | # undef _exit |
21 | # define setjmp _setjmp // deep magic, don't ask |
21 | # define setjmp _setjmp /* deep magic */ |
22 | #else |
22 | #else |
23 | # include <inttypes.h> /* most portable stdint.h */ |
23 | # include <inttypes.h> /* most portable stdint.h */ |
24 | #endif |
24 | #endif |
25 | |
25 | |
26 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
… | |
… | |
46 | # define BOOT_PAGESIZE (void)0 |
46 | # define BOOT_PAGESIZE (void)0 |
47 | #endif |
47 | #endif |
48 | |
48 | |
49 | #if CORO_USE_VALGRIND |
49 | #if CORO_USE_VALGRIND |
50 | # include <valgrind/valgrind.h> |
50 | # include <valgrind/valgrind.h> |
51 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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52 | #else |
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53 | # define REGISTER_STACK(cctx,start,end) |
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54 | #endif |
51 | #endif |
55 | |
52 | |
56 | /* the maximum number of idle cctx that will be pooled */ |
53 | /* the maximum number of idle cctx that will be pooled */ |
57 | static int cctx_max_idle = 4; |
54 | static int cctx_max_idle = 4; |
58 | |
55 | |
59 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
60 | (PERL_REVISION > (a) \ |
57 | (PERL_REVISION > (a) \ |
61 | || (PERL_REVISION == (a) \ |
58 | || (PERL_REVISION == (a) \ |
62 | && (PERL_VERSION > (b) \ |
59 | && (PERL_VERSION > (b) \ |
63 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
60 | || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c))))) |
64 | |
61 | |
65 | #if !PERL_VERSION_ATLEAST (5,6,0) |
62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
66 | # ifndef PL_ppaddr |
63 | # ifndef PL_ppaddr |
67 | # define PL_ppaddr ppaddr |
64 | # define PL_ppaddr ppaddr |
68 | # endif |
65 | # endif |
… | |
… | |
98 | # define GV_NOTQUAL 0 |
95 | # define GV_NOTQUAL 0 |
99 | #endif |
96 | #endif |
100 | #ifndef newSV |
97 | #ifndef newSV |
101 | # define newSV(l) NEWSV(0,l) |
98 | # define newSV(l) NEWSV(0,l) |
102 | #endif |
99 | #endif |
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100 | #ifndef CvISXSUB_on |
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101 | # define CvISXSUB_on(cv) (void)cv |
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102 | #endif |
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103 | #ifndef CvISXSUB |
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104 | # define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE) |
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105 | #endif |
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106 | #ifndef Newx |
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107 | # define Newx(ptr,nitems,type) New (0,ptr,nitems,type) |
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108 | #endif |
103 | |
109 | |
104 | /* 5.8.7 */ |
110 | /* 5.8.7 */ |
105 | #ifndef SvRV_set |
111 | #ifndef SvRV_set |
106 | # define SvRV_set(s,v) SvRV(s) = (v) |
112 | # define SvRV_set(s,v) SvRV(s) = (v) |
107 | #endif |
113 | #endif |
… | |
… | |
119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
125 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
120 | #endif |
126 | #endif |
121 | |
127 | |
122 | /* The next macros try to return the current stack pointer, in an as |
128 | /* The next macros try to return the current stack pointer, in an as |
123 | * portable way as possible. */ |
129 | * portable way as possible. */ |
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130 | #if __GNUC__ >= 4 |
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131 | # define dSTACKLEVEL int stacklevel_dummy |
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132 | # define STACKLEVEL __builtin_frame_address (0) |
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133 | #else |
124 | #define dSTACKLEVEL volatile char stacklevel |
134 | # define dSTACKLEVEL volatile void *stacklevel |
125 | #define STACKLEVEL ((void *)&stacklevel) |
135 | # define STACKLEVEL ((void *)&stacklevel) |
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136 | #endif |
126 | |
137 | |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
138 | #define IN_DESTRUCT PL_dirty |
128 | |
139 | |
129 | #if __GNUC__ >= 3 |
140 | #if __GNUC__ >= 3 |
130 | # define attribute(x) __attribute__(x) |
141 | # define attribute(x) __attribute__(x) |
131 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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132 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
142 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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143 | # define INLINE static inline |
133 | #else |
144 | #else |
134 | # define attribute(x) |
145 | # define attribute(x) |
135 | # define BARRIER |
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136 | # define expect(expr,value) (expr) |
146 | # define expect(expr,value) (expr) |
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147 | # define INLINE static |
137 | #endif |
148 | #endif |
138 | |
149 | |
139 | #define expect_false(expr) expect ((expr) != 0, 0) |
150 | #define expect_false(expr) expect ((expr) != 0, 0) |
140 | #define expect_true(expr) expect ((expr) != 0, 1) |
151 | #define expect_true(expr) expect ((expr) != 0, 1) |
141 | |
152 | |
142 | #define NOINLINE attribute ((noinline)) |
153 | #define NOINLINE attribute ((noinline)) |
143 | |
154 | |
144 | #include "CoroAPI.h" |
155 | #include "CoroAPI.h" |
|
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156 | #define GCoroAPI (&coroapi) /* very sneaky */ |
145 | |
157 | |
146 | #ifdef USE_ITHREADS |
158 | #ifdef USE_ITHREADS |
147 | |
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148 | static perl_mutex coro_lock; |
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149 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
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150 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
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151 | # if CORO_PTHREAD |
159 | # if CORO_PTHREAD |
152 | static void *coro_thx; |
160 | static void *coro_thx; |
153 | # endif |
161 | # endif |
154 | |
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155 | #else |
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156 | |
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157 | # define LOCK (void)0 |
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158 | # define UNLOCK (void)0 |
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159 | |
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160 | #endif |
162 | #endif |
161 | |
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162 | # undef LOCK |
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163 | # define LOCK (void)0 |
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164 | # undef UNLOCK |
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165 | # define UNLOCK (void)0 |
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166 | |
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167 | /* helper storage struct for Coro::AIO */ |
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168 | struct io_state |
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169 | { |
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170 | AV *res; |
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171 | int errorno; |
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172 | I32 laststype; /* U16 in 5.10.0 */ |
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173 | int laststatval; |
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174 | Stat_t statcache; |
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175 | }; |
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176 | |
163 | |
177 | static double (*nvtime)(); /* so why doesn't it take void? */ |
164 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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165 | |
|
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166 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
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167 | #define CVf_SLF 0x4000 |
|
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168 | static OP *pp_slf (pTHX); |
178 | |
169 | |
179 | static U32 cctx_gen; |
170 | static U32 cctx_gen; |
180 | static size_t cctx_stacksize = CORO_STACKSIZE; |
171 | static size_t cctx_stacksize = CORO_STACKSIZE; |
181 | static struct CoroAPI coroapi; |
172 | static struct CoroAPI coroapi; |
182 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
173 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
183 | static JMPENV *main_top_env; |
174 | static JMPENV *main_top_env; |
184 | static HV *coro_state_stash, *coro_stash; |
175 | static HV *coro_state_stash, *coro_stash; |
185 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
176 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
186 | |
177 | |
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178 | static AV *av_destroy; /* destruction queue */ |
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179 | static SV *sv_manager; /* the manager coro */ |
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180 | static SV *sv_idle; /* $Coro::idle */ |
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181 | |
187 | static GV *irsgv; /* $/ */ |
182 | static GV *irsgv; /* $/ */ |
188 | static GV *stdoutgv; /* *STDOUT */ |
183 | static GV *stdoutgv; /* *STDOUT */ |
189 | static SV *rv_diehook; |
184 | static SV *rv_diehook; |
190 | static SV *rv_warnhook; |
185 | static SV *rv_warnhook; |
191 | static HV *hv_sig; /* %SIG */ |
186 | static HV *hv_sig; /* %SIG */ |
192 | |
187 | |
193 | /* async_pool helper stuff */ |
188 | /* async_pool helper stuff */ |
194 | static SV *sv_pool_rss; |
189 | static SV *sv_pool_rss; |
195 | static SV *sv_pool_size; |
190 | static SV *sv_pool_size; |
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191 | static SV *sv_async_pool_idle; /* description string */ |
196 | static AV *av_async_pool; |
192 | static AV *av_async_pool; /* idle pool */ |
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193 | static SV *sv_Coro; /* class string */ |
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194 | static CV *cv_pool_handler; |
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195 | static CV *cv_coro_state_new; |
197 | |
196 | |
198 | /* Coro::AnyEvent */ |
197 | /* Coro::AnyEvent */ |
199 | static SV *sv_activity; |
198 | static SV *sv_activity; |
200 | |
199 | |
201 | static struct coro_cctx *cctx_first; |
200 | static struct coro_cctx *cctx_first; |
… | |
… | |
209 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
208 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
210 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
209 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
211 | }; |
210 | }; |
212 | |
211 | |
213 | /* this is a structure representing a c-level coroutine */ |
212 | /* this is a structure representing a c-level coroutine */ |
214 | typedef struct coro_cctx { |
213 | typedef struct coro_cctx |
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214 | { |
215 | struct coro_cctx *next; |
215 | struct coro_cctx *next; |
216 | |
216 | |
217 | /* the stack */ |
217 | /* the stack */ |
218 | void *sptr; |
218 | void *sptr; |
219 | size_t ssize; |
219 | size_t ssize; |
… | |
… | |
228 | #if CORO_USE_VALGRIND |
228 | #if CORO_USE_VALGRIND |
229 | int valgrind_id; |
229 | int valgrind_id; |
230 | #endif |
230 | #endif |
231 | unsigned char flags; |
231 | unsigned char flags; |
232 | } coro_cctx; |
232 | } coro_cctx; |
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233 | |
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234 | coro_cctx *cctx_current; /* the currently running cctx */ |
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235 | |
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|
236 | /*****************************************************************************/ |
233 | |
237 | |
234 | enum { |
238 | enum { |
235 | CF_RUNNING = 0x0001, /* coroutine is running */ |
239 | CF_RUNNING = 0x0001, /* coroutine is running */ |
236 | CF_READY = 0x0002, /* coroutine is ready */ |
240 | CF_READY = 0x0002, /* coroutine is ready */ |
237 | CF_NEW = 0x0004, /* has never been switched to */ |
241 | CF_NEW = 0x0004, /* has never been switched to */ |
238 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
242 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
239 | }; |
243 | }; |
240 | |
244 | |
241 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
245 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
242 | typedef struct { |
246 | typedef struct |
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|
247 | { |
243 | SV *defsv; |
248 | SV *defsv; |
244 | AV *defav; |
249 | AV *defav; |
245 | SV *errsv; |
250 | SV *errsv; |
246 | SV *irsgv; |
251 | SV *irsgv; |
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|
252 | HV *hinthv; |
247 | #define VAR(name,type) type name; |
253 | #define VAR(name,type) type name; |
248 | # include "state.h" |
254 | # include "state.h" |
249 | #undef VAR |
255 | #undef VAR |
250 | } perl_slots; |
256 | } perl_slots; |
251 | |
257 | |
252 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
258 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
253 | |
259 | |
254 | /* this is a structure representing a perl-level coroutine */ |
260 | /* this is a structure representing a perl-level coroutine */ |
255 | struct coro { |
261 | struct coro { |
256 | /* the c coroutine allocated to this perl coroutine, if any */ |
262 | /* the C coroutine allocated to this perl coroutine, if any */ |
257 | coro_cctx *cctx; |
263 | coro_cctx *cctx; |
258 | |
264 | |
259 | /* process data */ |
265 | /* state data */ |
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|
266 | struct CoroSLF slf_frame; /* saved slf frame */ |
260 | AV *mainstack; |
267 | AV *mainstack; |
261 | perl_slots *slot; /* basically the saved sp */ |
268 | perl_slots *slot; /* basically the saved sp */ |
262 | |
269 | |
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|
270 | CV *startcv; /* the CV to execute */ |
263 | AV *args; /* data associated with this coroutine (initial args) */ |
271 | AV *args; /* data associated with this coroutine (initial args) */ |
264 | int refcnt; /* coroutines are refcounted, yes */ |
272 | int refcnt; /* coroutines are refcounted, yes */ |
265 | int flags; /* CF_ flags */ |
273 | int flags; /* CF_ flags */ |
266 | HV *hv; /* the perl hash associated with this coro, if any */ |
274 | HV *hv; /* the perl hash associated with this coro, if any */ |
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|
275 | void (*on_destroy)(pTHX_ struct coro *coro); |
267 | |
276 | |
268 | /* statistics */ |
277 | /* statistics */ |
269 | int usecount; /* number of transfers to this coro */ |
278 | int usecount; /* number of transfers to this coro */ |
270 | |
279 | |
271 | /* coro process data */ |
280 | /* coro process data */ |
272 | int prio; |
281 | int prio; |
273 | SV *throw; /* exception to be thrown */ |
282 | SV *except; /* exception to be thrown */ |
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|
283 | SV *rouse_cb; |
274 | |
284 | |
275 | /* async_pool */ |
285 | /* async_pool */ |
276 | SV *saved_deffh; |
286 | SV *saved_deffh; |
|
|
287 | SV *invoke_cb; |
|
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288 | AV *invoke_av; |
277 | |
289 | |
278 | /* linked list */ |
290 | /* linked list */ |
279 | struct coro *next, *prev; |
291 | struct coro *next, *prev; |
280 | }; |
292 | }; |
281 | |
293 | |
282 | typedef struct coro *Coro__State; |
294 | typedef struct coro *Coro__State; |
283 | typedef struct coro *Coro__State_or_hashref; |
295 | typedef struct coro *Coro__State_or_hashref; |
|
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296 | |
|
|
297 | /* the following variables are effectively part of the perl context */ |
|
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298 | /* and get copied between struct coro and these variables */ |
|
|
299 | /* the mainr easonw e don't support windows process emulation */ |
|
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300 | static struct CoroSLF slf_frame; /* the current slf frame */ |
284 | |
301 | |
285 | /** Coro ********************************************************************/ |
302 | /** Coro ********************************************************************/ |
286 | |
303 | |
287 | #define PRIO_MAX 3 |
304 | #define PRIO_MAX 3 |
288 | #define PRIO_HIGH 1 |
305 | #define PRIO_HIGH 1 |
… | |
… | |
293 | |
310 | |
294 | /* for Coro.pm */ |
311 | /* for Coro.pm */ |
295 | static SV *coro_current; |
312 | static SV *coro_current; |
296 | static SV *coro_readyhook; |
313 | static SV *coro_readyhook; |
297 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
314 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
298 | static int coro_nready; |
315 | static CV *cv_coro_run, *cv_coro_terminate; |
299 | static struct coro *coro_first; |
316 | static struct coro *coro_first; |
|
|
317 | #define coro_nready coroapi.nready |
300 | |
318 | |
301 | /** lowlevel stuff **********************************************************/ |
319 | /** lowlevel stuff **********************************************************/ |
302 | |
320 | |
303 | static SV * |
321 | static SV * |
304 | coro_get_sv (pTHX_ const char *name, int create) |
322 | coro_get_sv (pTHX_ const char *name, int create) |
… | |
… | |
328 | get_hv (name, create); |
346 | get_hv (name, create); |
329 | #endif |
347 | #endif |
330 | return get_hv (name, create); |
348 | return get_hv (name, create); |
331 | } |
349 | } |
332 | |
350 | |
|
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351 | /* may croak */ |
|
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352 | INLINE CV * |
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353 | coro_sv_2cv (pTHX_ SV *sv) |
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354 | { |
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355 | HV *st; |
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356 | GV *gvp; |
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357 | return sv_2cv (sv, &st, &gvp, 0); |
|
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358 | } |
|
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359 | |
333 | static AV * |
360 | static AV * |
334 | coro_clone_padlist (pTHX_ CV *cv) |
361 | coro_derive_padlist (pTHX_ CV *cv) |
335 | { |
362 | { |
336 | AV *padlist = CvPADLIST (cv); |
363 | AV *padlist = CvPADLIST (cv); |
337 | AV *newpadlist, *newpad; |
364 | AV *newpadlist, *newpad; |
338 | |
365 | |
339 | newpadlist = newAV (); |
366 | newpadlist = newAV (); |
… | |
… | |
354 | |
381 | |
355 | static void |
382 | static void |
356 | free_padlist (pTHX_ AV *padlist) |
383 | free_padlist (pTHX_ AV *padlist) |
357 | { |
384 | { |
358 | /* may be during global destruction */ |
385 | /* may be during global destruction */ |
359 | if (SvREFCNT (padlist)) |
386 | if (!IN_DESTRUCT) |
360 | { |
387 | { |
361 | I32 i = AvFILLp (padlist); |
388 | I32 i = AvFILLp (padlist); |
|
|
389 | |
362 | while (i >= 0) |
390 | while (i >= 0) |
363 | { |
391 | { |
364 | SV **svp = av_fetch (padlist, i--, FALSE); |
392 | /* we try to be extra-careful here */ |
365 | if (svp) |
393 | AV *av = (AV *)AvARRAY (padlist)[i--]; |
366 | { |
394 | |
367 | SV *sv; |
395 | I32 i = AvFILLp (av); |
368 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
396 | |
|
|
397 | while (i >= 0) |
|
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398 | SvREFCNT_dec (AvARRAY (av)[i--]); |
|
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399 | |
|
|
400 | AvFILLp (av) = -1; |
369 | SvREFCNT_dec (sv); |
401 | SvREFCNT_dec (av); |
370 | |
|
|
371 | SvREFCNT_dec (*svp); |
|
|
372 | } |
|
|
373 | } |
402 | } |
374 | |
403 | |
|
|
404 | AvFILLp (padlist) = -1; |
375 | SvREFCNT_dec ((SV*)padlist); |
405 | SvREFCNT_dec ((SV*)padlist); |
376 | } |
406 | } |
377 | } |
407 | } |
378 | |
408 | |
379 | static int |
409 | static int |
… | |
… | |
389 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
419 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
390 | |
420 | |
391 | return 0; |
421 | return 0; |
392 | } |
422 | } |
393 | |
423 | |
394 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
424 | #define CORO_MAGIC_type_cv 26 |
395 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
425 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
396 | |
426 | |
397 | static MGVTBL coro_cv_vtbl = { |
427 | static MGVTBL coro_cv_vtbl = { |
398 | 0, 0, 0, 0, |
428 | 0, 0, 0, 0, |
399 | coro_cv_free |
429 | coro_cv_free |
400 | }; |
430 | }; |
401 | |
431 | |
|
|
432 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
433 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
434 | ? SvMAGIC (sv) \ |
|
|
435 | : mg_find (sv, type)) |
|
|
436 | |
402 | #define CORO_MAGIC(sv, type) \ |
437 | #define CORO_MAGIC(sv, type) \ |
403 | SvMAGIC (sv) \ |
438 | (expect_true (SvMAGIC (sv)) \ |
404 | ? SvMAGIC (sv)->mg_type == type \ |
439 | ? CORO_MAGIC_NN (sv, type) \ |
405 | ? SvMAGIC (sv) \ |
|
|
406 | : mg_find (sv, type) \ |
|
|
407 | : 0 |
440 | : 0) |
408 | |
441 | |
409 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
442 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
410 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
443 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
411 | |
444 | |
412 | static struct coro * |
445 | INLINE struct coro * |
413 | SvSTATE_ (pTHX_ SV *coro) |
446 | SvSTATE_ (pTHX_ SV *coro) |
414 | { |
447 | { |
415 | HV *stash; |
448 | HV *stash; |
416 | MAGIC *mg; |
449 | MAGIC *mg; |
417 | |
450 | |
… | |
… | |
432 | mg = CORO_MAGIC_state (coro); |
465 | mg = CORO_MAGIC_state (coro); |
433 | return (struct coro *)mg->mg_ptr; |
466 | return (struct coro *)mg->mg_ptr; |
434 | } |
467 | } |
435 | |
468 | |
436 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
469 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
470 | |
|
|
471 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
472 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
473 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
437 | |
474 | |
438 | /* the next two functions merely cache the padlists */ |
475 | /* the next two functions merely cache the padlists */ |
439 | static void |
476 | static void |
440 | get_padlist (pTHX_ CV *cv) |
477 | get_padlist (pTHX_ CV *cv) |
441 | { |
478 | { |
… | |
… | |
447 | else |
484 | else |
448 | { |
485 | { |
449 | #if CORO_PREFER_PERL_FUNCTIONS |
486 | #if CORO_PREFER_PERL_FUNCTIONS |
450 | /* this is probably cleaner? but also slower! */ |
487 | /* this is probably cleaner? but also slower! */ |
451 | /* in practise, it seems to be less stable */ |
488 | /* in practise, it seems to be less stable */ |
452 | CV *cp = Perl_cv_clone (cv); |
489 | CV *cp = Perl_cv_clone (aTHX_ cv); |
453 | CvPADLIST (cv) = CvPADLIST (cp); |
490 | CvPADLIST (cv) = CvPADLIST (cp); |
454 | CvPADLIST (cp) = 0; |
491 | CvPADLIST (cp) = 0; |
455 | SvREFCNT_dec (cp); |
492 | SvREFCNT_dec (cp); |
456 | #else |
493 | #else |
457 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
494 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
458 | #endif |
495 | #endif |
459 | } |
496 | } |
460 | } |
497 | } |
461 | |
498 | |
462 | static void |
499 | static void |
… | |
… | |
469 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
506 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
470 | |
507 | |
471 | av = (AV *)mg->mg_obj; |
508 | av = (AV *)mg->mg_obj; |
472 | |
509 | |
473 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
510 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
474 | av_extend (av, AvMAX (av) + 1); |
511 | av_extend (av, AvFILLp (av) + 1); |
475 | |
512 | |
476 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
513 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
477 | } |
514 | } |
478 | |
515 | |
479 | /** load & save, init *******************************************************/ |
516 | /** load & save, init *******************************************************/ |
… | |
… | |
484 | perl_slots *slot = c->slot; |
521 | perl_slots *slot = c->slot; |
485 | c->slot = 0; |
522 | c->slot = 0; |
486 | |
523 | |
487 | PL_mainstack = c->mainstack; |
524 | PL_mainstack = c->mainstack; |
488 | |
525 | |
489 | GvSV (PL_defgv) = slot->defsv; |
526 | GvSV (PL_defgv) = slot->defsv; |
490 | GvAV (PL_defgv) = slot->defav; |
527 | GvAV (PL_defgv) = slot->defav; |
491 | GvSV (PL_errgv) = slot->errsv; |
528 | GvSV (PL_errgv) = slot->errsv; |
492 | GvSV (irsgv) = slot->irsgv; |
529 | GvSV (irsgv) = slot->irsgv; |
|
|
530 | GvHV (PL_hintgv) = slot->hinthv; |
493 | |
531 | |
494 | #define VAR(name,type) PL_ ## name = slot->name; |
532 | #define VAR(name,type) PL_ ## name = slot->name; |
495 | # include "state.h" |
533 | # include "state.h" |
496 | #undef VAR |
534 | #undef VAR |
497 | |
535 | |
… | |
… | |
508 | CvPADLIST (cv) = (AV *)POPs; |
546 | CvPADLIST (cv) = (AV *)POPs; |
509 | } |
547 | } |
510 | |
548 | |
511 | PUTBACK; |
549 | PUTBACK; |
512 | } |
550 | } |
|
|
551 | |
|
|
552 | slf_frame = c->slf_frame; |
|
|
553 | CORO_THROW = c->except; |
513 | } |
554 | } |
514 | |
555 | |
515 | static void |
556 | static void |
516 | save_perl (pTHX_ Coro__State c) |
557 | save_perl (pTHX_ Coro__State c) |
517 | { |
558 | { |
|
|
559 | c->except = CORO_THROW; |
|
|
560 | c->slf_frame = slf_frame; |
|
|
561 | |
518 | { |
562 | { |
519 | dSP; |
563 | dSP; |
520 | I32 cxix = cxstack_ix; |
564 | I32 cxix = cxstack_ix; |
521 | PERL_CONTEXT *ccstk = cxstack; |
565 | PERL_CONTEXT *ccstk = cxstack; |
522 | PERL_SI *top_si = PL_curstackinfo; |
566 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
577 | c->mainstack = PL_mainstack; |
621 | c->mainstack = PL_mainstack; |
578 | |
622 | |
579 | { |
623 | { |
580 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
624 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
581 | |
625 | |
582 | slot->defav = GvAV (PL_defgv); |
626 | slot->defav = GvAV (PL_defgv); |
583 | slot->defsv = DEFSV; |
627 | slot->defsv = DEFSV; |
584 | slot->errsv = ERRSV; |
628 | slot->errsv = ERRSV; |
585 | slot->irsgv = GvSV (irsgv); |
629 | slot->irsgv = GvSV (irsgv); |
|
|
630 | slot->hinthv = GvHV (PL_hintgv); |
586 | |
631 | |
587 | #define VAR(name,type) slot->name = PL_ ## name; |
632 | #define VAR(name,type) slot->name = PL_ ## name; |
588 | # include "state.h" |
633 | # include "state.h" |
589 | #undef VAR |
634 | #undef VAR |
590 | } |
635 | } |
591 | } |
636 | } |
592 | |
637 | |
593 | /* |
638 | /* |
594 | * allocate various perl stacks. This is an exact copy |
639 | * allocate various perl stacks. This is almost an exact copy |
595 | * of perl.c:init_stacks, except that it uses less memory |
640 | * of perl.c:init_stacks, except that it uses less memory |
596 | * on the (sometimes correct) assumption that coroutines do |
641 | * on the (sometimes correct) assumption that coroutines do |
597 | * not usually need a lot of stackspace. |
642 | * not usually need a lot of stackspace. |
598 | */ |
643 | */ |
599 | #if CORO_PREFER_PERL_FUNCTIONS |
644 | #if CORO_PREFER_PERL_FUNCTIONS |
600 | # define coro_init_stacks init_stacks |
645 | # define coro_init_stacks(thx) init_stacks () |
601 | #else |
646 | #else |
602 | static void |
647 | static void |
603 | coro_init_stacks (pTHX) |
648 | coro_init_stacks (pTHX) |
604 | { |
649 | { |
605 | PL_curstackinfo = new_stackinfo(32, 8); |
650 | PL_curstackinfo = new_stackinfo(32, 8); |
… | |
… | |
668 | #if !PERL_VERSION_ATLEAST (5,10,0) |
713 | #if !PERL_VERSION_ATLEAST (5,10,0) |
669 | Safefree (PL_retstack); |
714 | Safefree (PL_retstack); |
670 | #endif |
715 | #endif |
671 | } |
716 | } |
672 | |
717 | |
|
|
718 | #define CORO_RSS \ |
|
|
719 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
720 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
721 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
722 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
723 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
724 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
725 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
726 | |
673 | static size_t |
727 | static size_t |
674 | coro_rss (pTHX_ struct coro *coro) |
728 | coro_rss (pTHX_ struct coro *coro) |
675 | { |
729 | { |
676 | size_t rss = sizeof (*coro); |
730 | size_t rss = sizeof (*coro); |
677 | |
731 | |
678 | if (coro->mainstack) |
732 | if (coro->mainstack) |
679 | { |
733 | { |
680 | perl_slots tmp_slot; |
|
|
681 | perl_slots *slot; |
|
|
682 | |
|
|
683 | if (coro->flags & CF_RUNNING) |
734 | if (coro->flags & CF_RUNNING) |
684 | { |
735 | { |
685 | slot = &tmp_slot; |
736 | #define SYM(sym) PL_ ## sym |
686 | |
737 | CORO_RSS; |
687 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
688 | # include "state.h" |
|
|
689 | #undef VAR |
738 | #undef SYM |
690 | } |
739 | } |
691 | else |
740 | else |
692 | slot = coro->slot; |
|
|
693 | |
|
|
694 | if (slot) |
|
|
695 | { |
741 | { |
696 | rss += sizeof (slot->curstackinfo); |
742 | #define SYM(sym) coro->slot->sym |
697 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
743 | CORO_RSS; |
698 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
744 | #undef SYM |
699 | rss += slot->tmps_max * sizeof (SV *); |
|
|
700 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
701 | rss += slot->scopestack_max * sizeof (I32); |
|
|
702 | rss += slot->savestack_max * sizeof (ANY); |
|
|
703 | |
|
|
704 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
705 | rss += slot->retstack_max * sizeof (OP *); |
|
|
706 | #endif |
|
|
707 | } |
745 | } |
708 | } |
746 | } |
709 | |
747 | |
710 | return rss; |
748 | return rss; |
711 | } |
749 | } |
… | |
… | |
801 | |
839 | |
802 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
840 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
803 | } |
841 | } |
804 | |
842 | |
805 | static void |
843 | static void |
|
|
844 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
845 | { |
|
|
846 | /* kind of mega-hacky, but works */ |
|
|
847 | ta->next = ta->prev = (struct coro *)ta; |
|
|
848 | } |
|
|
849 | |
|
|
850 | static int |
|
|
851 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
852 | { |
|
|
853 | return 0; |
|
|
854 | } |
|
|
855 | |
|
|
856 | static int |
|
|
857 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
858 | { |
|
|
859 | return 1; |
|
|
860 | } |
|
|
861 | |
|
|
862 | static UNOP coro_setup_op; |
|
|
863 | |
|
|
864 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
806 | coro_setup (pTHX_ struct coro *coro) |
865 | coro_setup (pTHX_ struct coro *coro) |
807 | { |
866 | { |
808 | /* |
867 | /* |
809 | * emulate part of the perl startup here. |
868 | * emulate part of the perl startup here. |
810 | */ |
869 | */ |
… | |
… | |
812 | |
871 | |
813 | PL_runops = RUNOPS_DEFAULT; |
872 | PL_runops = RUNOPS_DEFAULT; |
814 | PL_curcop = &PL_compiling; |
873 | PL_curcop = &PL_compiling; |
815 | PL_in_eval = EVAL_NULL; |
874 | PL_in_eval = EVAL_NULL; |
816 | PL_comppad = 0; |
875 | PL_comppad = 0; |
|
|
876 | PL_comppad_name = 0; |
|
|
877 | PL_comppad_name_fill = 0; |
|
|
878 | PL_comppad_name_floor = 0; |
817 | PL_curpm = 0; |
879 | PL_curpm = 0; |
818 | PL_curpad = 0; |
880 | PL_curpad = 0; |
819 | PL_localizing = 0; |
881 | PL_localizing = 0; |
820 | PL_dirty = 0; |
882 | PL_dirty = 0; |
821 | PL_restartop = 0; |
883 | PL_restartop = 0; |
822 | #if PERL_VERSION_ATLEAST (5,10,0) |
884 | #if PERL_VERSION_ATLEAST (5,10,0) |
823 | PL_parser = 0; |
885 | PL_parser = 0; |
824 | #endif |
886 | #endif |
|
|
887 | PL_hints = 0; |
825 | |
888 | |
826 | /* recreate the die/warn hooks */ |
889 | /* recreate the die/warn hooks */ |
827 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
890 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
828 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
891 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
829 | |
892 | |
830 | GvSV (PL_defgv) = newSV (0); |
893 | GvSV (PL_defgv) = newSV (0); |
831 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
894 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
832 | GvSV (PL_errgv) = newSV (0); |
895 | GvSV (PL_errgv) = newSV (0); |
833 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
896 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
897 | GvHV (PL_hintgv) = 0; |
834 | PL_rs = newSVsv (GvSV (irsgv)); |
898 | PL_rs = newSVsv (GvSV (irsgv)); |
835 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
899 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
836 | |
900 | |
837 | { |
901 | { |
838 | dSP; |
902 | dSP; |
839 | LOGOP myop; |
903 | UNOP myop; |
840 | |
904 | |
841 | Zero (&myop, 1, LOGOP); |
905 | Zero (&myop, 1, UNOP); |
842 | myop.op_next = Nullop; |
906 | myop.op_next = Nullop; |
|
|
907 | myop.op_type = OP_ENTERSUB; |
843 | myop.op_flags = OPf_WANT_VOID; |
908 | myop.op_flags = OPf_WANT_VOID; |
844 | |
909 | |
845 | PUSHMARK (SP); |
910 | PUSHMARK (SP); |
846 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
911 | PUSHs ((SV *)coro->startcv); |
847 | PUTBACK; |
912 | PUTBACK; |
848 | PL_op = (OP *)&myop; |
913 | PL_op = (OP *)&myop; |
849 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
914 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
850 | SPAGAIN; |
|
|
851 | } |
915 | } |
852 | |
916 | |
853 | /* this newly created coroutine might be run on an existing cctx which most |
917 | /* this newly created coroutine might be run on an existing cctx which most |
854 | * likely was suspended in set_stacklevel, called from entersub. |
918 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
855 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
856 | * so we ENTER here for symmetry |
|
|
857 | */ |
919 | */ |
858 | ENTER; |
920 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
921 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
922 | |
|
|
923 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
924 | coro_setup_op.op_next = PL_op; |
|
|
925 | coro_setup_op.op_type = OP_ENTERSUB; |
|
|
926 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
927 | /* no flags etc. required, as an init function won't be called */ |
|
|
928 | |
|
|
929 | PL_op = (OP *)&coro_setup_op; |
|
|
930 | |
|
|
931 | /* copy throw, in case it was set before coro_setup */ |
|
|
932 | CORO_THROW = coro->except; |
859 | } |
933 | } |
860 | |
934 | |
861 | static void |
935 | static void |
862 | coro_destruct (pTHX_ struct coro *coro) |
936 | coro_destruct (pTHX_ struct coro *coro) |
863 | { |
937 | { |
… | |
… | |
882 | SvREFCNT_dec (GvAV (PL_defgv)); |
956 | SvREFCNT_dec (GvAV (PL_defgv)); |
883 | SvREFCNT_dec (GvSV (PL_errgv)); |
957 | SvREFCNT_dec (GvSV (PL_errgv)); |
884 | SvREFCNT_dec (PL_defoutgv); |
958 | SvREFCNT_dec (PL_defoutgv); |
885 | SvREFCNT_dec (PL_rs); |
959 | SvREFCNT_dec (PL_rs); |
886 | SvREFCNT_dec (GvSV (irsgv)); |
960 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
961 | SvREFCNT_dec (GvHV (PL_hintgv)); |
887 | |
962 | |
888 | SvREFCNT_dec (PL_diehook); |
963 | SvREFCNT_dec (PL_diehook); |
889 | SvREFCNT_dec (PL_warnhook); |
964 | SvREFCNT_dec (PL_warnhook); |
890 | |
965 | |
891 | SvREFCNT_dec (coro->saved_deffh); |
966 | SvREFCNT_dec (coro->saved_deffh); |
892 | SvREFCNT_dec (coro->throw); |
967 | SvREFCNT_dec (coro->rouse_cb); |
|
|
968 | SvREFCNT_dec (coro->invoke_cb); |
|
|
969 | SvREFCNT_dec (coro->invoke_av); |
893 | |
970 | |
894 | coro_destruct_stacks (aTHX); |
971 | coro_destruct_stacks (aTHX); |
895 | } |
972 | } |
896 | |
973 | |
897 | static void |
974 | INLINE void |
898 | free_coro_mortal (pTHX) |
975 | free_coro_mortal (pTHX) |
899 | { |
976 | { |
900 | if (expect_true (coro_mortal)) |
977 | if (expect_true (coro_mortal)) |
901 | { |
978 | { |
902 | SvREFCNT_dec (coro_mortal); |
979 | SvREFCNT_dec (coro_mortal); |
… | |
… | |
907 | static int |
984 | static int |
908 | runops_trace (pTHX) |
985 | runops_trace (pTHX) |
909 | { |
986 | { |
910 | COP *oldcop = 0; |
987 | COP *oldcop = 0; |
911 | int oldcxix = -2; |
988 | int oldcxix = -2; |
912 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
913 | coro_cctx *cctx = coro->cctx; |
|
|
914 | |
989 | |
915 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
990 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
916 | { |
991 | { |
917 | PERL_ASYNC_CHECK (); |
992 | PERL_ASYNC_CHECK (); |
918 | |
993 | |
919 | if (cctx->flags & CC_TRACE_ALL) |
994 | if (cctx_current->flags & CC_TRACE_ALL) |
920 | { |
995 | { |
921 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
996 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
922 | { |
997 | { |
923 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
998 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
924 | SV **bot, **top; |
999 | SV **bot, **top; |
925 | AV *av = newAV (); /* return values */ |
1000 | AV *av = newAV (); /* return values */ |
926 | SV **cb; |
1001 | SV **cb; |
… | |
… | |
963 | |
1038 | |
964 | if (PL_curcop != &PL_compiling) |
1039 | if (PL_curcop != &PL_compiling) |
965 | { |
1040 | { |
966 | SV **cb; |
1041 | SV **cb; |
967 | |
1042 | |
968 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1043 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
969 | { |
1044 | { |
970 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1045 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
971 | |
1046 | |
972 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1047 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
973 | { |
1048 | { |
974 | runops_proc_t old_runops = PL_runops; |
|
|
975 | dSP; |
1049 | dSP; |
976 | GV *gv = CvGV (cx->blk_sub.cv); |
1050 | GV *gv = CvGV (cx->blk_sub.cv); |
977 | SV *fullname = sv_2mortal (newSV (0)); |
1051 | SV *fullname = sv_2mortal (newSV (0)); |
978 | |
1052 | |
979 | if (isGV (gv)) |
1053 | if (isGV (gv)) |
… | |
… | |
984 | SAVETMPS; |
1058 | SAVETMPS; |
985 | EXTEND (SP, 3); |
1059 | EXTEND (SP, 3); |
986 | PUSHMARK (SP); |
1060 | PUSHMARK (SP); |
987 | PUSHs (&PL_sv_yes); |
1061 | PUSHs (&PL_sv_yes); |
988 | PUSHs (fullname); |
1062 | PUSHs (fullname); |
989 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1063 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
990 | PUTBACK; |
1064 | PUTBACK; |
991 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1065 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
992 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1066 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
993 | SPAGAIN; |
1067 | SPAGAIN; |
994 | FREETMPS; |
1068 | FREETMPS; |
… | |
… | |
997 | } |
1071 | } |
998 | |
1072 | |
999 | oldcxix = cxstack_ix; |
1073 | oldcxix = cxstack_ix; |
1000 | } |
1074 | } |
1001 | |
1075 | |
1002 | if (cctx->flags & CC_TRACE_LINE) |
1076 | if (cctx_current->flags & CC_TRACE_LINE) |
1003 | { |
1077 | { |
1004 | dSP; |
1078 | dSP; |
1005 | |
1079 | |
1006 | PL_runops = RUNOPS_DEFAULT; |
1080 | PL_runops = RUNOPS_DEFAULT; |
1007 | ENTER; |
1081 | ENTER; |
… | |
… | |
1026 | |
1100 | |
1027 | TAINT_NOT; |
1101 | TAINT_NOT; |
1028 | return 0; |
1102 | return 0; |
1029 | } |
1103 | } |
1030 | |
1104 | |
1031 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1105 | static struct CoroSLF cctx_ssl_frame; |
1032 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1106 | |
1033 | /* during execution of a perl program */ |
1107 | static void |
|
|
1108 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1109 | { |
|
|
1110 | ta->prev = 0; |
|
|
1111 | } |
|
|
1112 | |
|
|
1113 | static int |
|
|
1114 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1115 | { |
|
|
1116 | *frame = cctx_ssl_frame; |
|
|
1117 | |
|
|
1118 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1119 | } |
|
|
1120 | |
|
|
1121 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1034 | static void NOINLINE |
1122 | static void NOINLINE |
1035 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1123 | cctx_prepare (pTHX) |
1036 | { |
1124 | { |
1037 | dSP; |
|
|
1038 | LOGOP myop; |
|
|
1039 | |
|
|
1040 | PL_top_env = &PL_start_env; |
1125 | PL_top_env = &PL_start_env; |
1041 | |
1126 | |
1042 | if (cctx->flags & CC_TRACE) |
1127 | if (cctx_current->flags & CC_TRACE) |
1043 | PL_runops = runops_trace; |
1128 | PL_runops = runops_trace; |
1044 | |
1129 | |
1045 | Zero (&myop, 1, LOGOP); |
1130 | /* we already must be executing an SLF op, there is no other valid way |
1046 | myop.op_next = PL_op; |
1131 | * that can lead to creation of a new cctx */ |
1047 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1132 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1133 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1048 | |
1134 | |
1049 | PUSHMARK (SP); |
1135 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1050 | EXTEND (SP, 2); |
1136 | cctx_ssl_frame = slf_frame; |
1051 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1137 | |
1052 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1138 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1053 | PUTBACK; |
1139 | slf_frame.check = slf_check_set_stacklevel; |
1054 | PL_op = (OP *)&myop; |
1140 | } |
1055 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1141 | |
1056 | SPAGAIN; |
1142 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1143 | INLINE void |
|
|
1144 | transfer_tail (pTHX) |
|
|
1145 | { |
|
|
1146 | free_coro_mortal (aTHX); |
1057 | } |
1147 | } |
1058 | |
1148 | |
1059 | /* |
1149 | /* |
1060 | * this is a _very_ stripped down perl interpreter ;) |
1150 | * this is a _very_ stripped down perl interpreter ;) |
1061 | */ |
1151 | */ |
… | |
… | |
1068 | # endif |
1158 | # endif |
1069 | #endif |
1159 | #endif |
1070 | { |
1160 | { |
1071 | dTHX; |
1161 | dTHX; |
1072 | |
1162 | |
1073 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
1163 | /* normally we would need to skip the entersub here */ |
1074 | UNLOCK; |
1164 | /* not doing so will re-execute it, which is exactly what we want */ |
1075 | |
|
|
1076 | /* we now skip the entersub that lead to transfer() */ |
|
|
1077 | PL_op = PL_op->op_next; |
1165 | /* PL_nop = PL_nop->op_next */ |
1078 | |
1166 | |
1079 | /* inject a fake subroutine call to cctx_init */ |
1167 | /* inject a fake subroutine call to cctx_init */ |
1080 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1168 | cctx_prepare (aTHX); |
|
|
1169 | |
|
|
1170 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1171 | transfer_tail (aTHX); |
1081 | |
1172 | |
1082 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1173 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1083 | PL_restartop = PL_op; |
1174 | PL_restartop = PL_op; |
1084 | perl_run (PL_curinterp); |
1175 | perl_run (PL_curinterp); |
|
|
1176 | /* |
|
|
1177 | * Unfortunately, there is no way to get at the return values of the |
|
|
1178 | * coro body here, as perl_run destroys these |
|
|
1179 | */ |
1085 | |
1180 | |
1086 | /* |
1181 | /* |
1087 | * If perl-run returns we assume exit() was being called or the coro |
1182 | * If perl-run returns we assume exit() was being called or the coro |
1088 | * fell off the end, which seems to be the only valid (non-bug) |
1183 | * fell off the end, which seems to be the only valid (non-bug) |
1089 | * reason for perl_run to return. We try to exit by jumping to the |
1184 | * reason for perl_run to return. We try to exit by jumping to the |
1090 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1185 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1091 | * coroutine as Coro has no such concept |
1186 | * coroutine as Coro has no such concept. |
|
|
1187 | * This actually isn't valid with the pthread backend, but OSes requiring |
|
|
1188 | * that backend are too broken to do it in a standards-compliant way. |
1092 | */ |
1189 | */ |
1093 | PL_top_env = main_top_env; |
1190 | PL_top_env = main_top_env; |
1094 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1191 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1095 | } |
1192 | } |
1096 | } |
1193 | } |
1097 | |
1194 | |
1098 | static coro_cctx * |
1195 | static coro_cctx * |
1099 | cctx_new () |
1196 | cctx_new () |
1100 | { |
1197 | { |
1101 | coro_cctx *cctx; |
1198 | coro_cctx *cctx; |
|
|
1199 | |
|
|
1200 | ++cctx_count; |
|
|
1201 | New (0, cctx, 1, coro_cctx); |
|
|
1202 | |
|
|
1203 | cctx->gen = cctx_gen; |
|
|
1204 | cctx->flags = 0; |
|
|
1205 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1206 | |
|
|
1207 | return cctx; |
|
|
1208 | } |
|
|
1209 | |
|
|
1210 | /* create a new cctx only suitable as source */ |
|
|
1211 | static coro_cctx * |
|
|
1212 | cctx_new_empty () |
|
|
1213 | { |
|
|
1214 | coro_cctx *cctx = cctx_new (); |
|
|
1215 | |
|
|
1216 | cctx->sptr = 0; |
|
|
1217 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1218 | |
|
|
1219 | return cctx; |
|
|
1220 | } |
|
|
1221 | |
|
|
1222 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1223 | static coro_cctx * |
|
|
1224 | cctx_new_run () |
|
|
1225 | { |
|
|
1226 | coro_cctx *cctx = cctx_new (); |
1102 | void *stack_start; |
1227 | void *stack_start; |
1103 | size_t stack_size; |
1228 | size_t stack_size; |
1104 | |
|
|
1105 | ++cctx_count; |
|
|
1106 | Newz (0, cctx, 1, coro_cctx); |
|
|
1107 | |
|
|
1108 | cctx->gen = cctx_gen; |
|
|
1109 | |
1229 | |
1110 | #if HAVE_MMAP |
1230 | #if HAVE_MMAP |
1111 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1231 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1112 | /* mmap supposedly does allocate-on-write for us */ |
1232 | /* mmap supposedly does allocate-on-write for us */ |
1113 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1233 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1114 | |
1234 | |
1115 | if (cctx->sptr != (void *)-1) |
1235 | if (cctx->sptr != (void *)-1) |
1116 | { |
1236 | { |
1117 | # if CORO_STACKGUARD |
1237 | #if CORO_STACKGUARD |
1118 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1238 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1119 | # endif |
1239 | #endif |
1120 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1240 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
1121 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1241 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1122 | cctx->flags |= CC_MAPPED; |
1242 | cctx->flags |= CC_MAPPED; |
1123 | } |
1243 | } |
1124 | else |
1244 | else |
1125 | #endif |
1245 | #endif |
1126 | { |
1246 | { |
1127 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1247 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1128 | New (0, cctx->sptr, cctx_stacksize, long); |
1248 | New (0, cctx->sptr, cctx_stacksize, long); |
1129 | |
1249 | |
1130 | if (!cctx->sptr) |
1250 | if (!cctx->sptr) |
1131 | { |
1251 | { |
1132 | perror ("FATAL: unable to allocate stack for coroutine"); |
1252 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1133 | _exit (EXIT_FAILURE); |
1253 | _exit (EXIT_FAILURE); |
1134 | } |
1254 | } |
1135 | |
1255 | |
1136 | stack_start = cctx->sptr; |
1256 | stack_start = cctx->sptr; |
1137 | stack_size = cctx->ssize; |
1257 | stack_size = cctx->ssize; |
1138 | } |
1258 | } |
1139 | |
1259 | |
1140 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1260 | #if CORO_USE_VALGRIND |
|
|
1261 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1262 | #endif |
|
|
1263 | |
1141 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1264 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1142 | |
1265 | |
1143 | return cctx; |
1266 | return cctx; |
1144 | } |
1267 | } |
1145 | |
1268 | |
… | |
… | |
1147 | cctx_destroy (coro_cctx *cctx) |
1270 | cctx_destroy (coro_cctx *cctx) |
1148 | { |
1271 | { |
1149 | if (!cctx) |
1272 | if (!cctx) |
1150 | return; |
1273 | return; |
1151 | |
1274 | |
|
|
1275 | assert (cctx != cctx_current);//D temporary |
|
|
1276 | |
1152 | --cctx_count; |
1277 | --cctx_count; |
1153 | coro_destroy (&cctx->cctx); |
1278 | coro_destroy (&cctx->cctx); |
1154 | |
1279 | |
1155 | /* coro_transfer creates new, empty cctx's */ |
1280 | /* coro_transfer creates new, empty cctx's */ |
1156 | if (cctx->sptr) |
1281 | if (cctx->sptr) |
1157 | { |
1282 | { |
1158 | #if CORO_USE_VALGRIND |
1283 | #if CORO_USE_VALGRIND |
1159 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1284 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1160 | #endif |
1285 | #endif |
1161 | |
1286 | |
1162 | #if HAVE_MMAP |
1287 | #if HAVE_MMAP |
1163 | if (cctx->flags & CC_MAPPED) |
1288 | if (cctx->flags & CC_MAPPED) |
1164 | munmap (cctx->sptr, cctx->ssize); |
1289 | munmap (cctx->sptr, cctx->ssize); |
1165 | else |
1290 | else |
… | |
… | |
1186 | return cctx; |
1311 | return cctx; |
1187 | |
1312 | |
1188 | cctx_destroy (cctx); |
1313 | cctx_destroy (cctx); |
1189 | } |
1314 | } |
1190 | |
1315 | |
1191 | return cctx_new (); |
1316 | return cctx_new_run (); |
1192 | } |
1317 | } |
1193 | |
1318 | |
1194 | static void |
1319 | static void |
1195 | cctx_put (coro_cctx *cctx) |
1320 | cctx_put (coro_cctx *cctx) |
1196 | { |
1321 | { |
1197 | assert (("cctx_put called on non-initialised cctx", cctx->sptr)); |
1322 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1198 | |
1323 | |
1199 | /* free another cctx if overlimit */ |
1324 | /* free another cctx if overlimit */ |
1200 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1325 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1201 | { |
1326 | { |
1202 | coro_cctx *first = cctx_first; |
1327 | coro_cctx *first = cctx_first; |
… | |
… | |
1214 | /** coroutine switching *****************************************************/ |
1339 | /** coroutine switching *****************************************************/ |
1215 | |
1340 | |
1216 | static void |
1341 | static void |
1217 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1342 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1218 | { |
1343 | { |
|
|
1344 | /* TODO: throwing up here is considered harmful */ |
|
|
1345 | |
1219 | if (expect_true (prev != next)) |
1346 | if (expect_true (prev != next)) |
1220 | { |
1347 | { |
1221 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1348 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1222 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1349 | croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,"); |
1223 | |
1350 | |
1224 | if (expect_false (next->flags & CF_RUNNING)) |
1351 | if (expect_false (next->flags & CF_RUNNING)) |
1225 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1352 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
1226 | |
1353 | |
1227 | if (expect_false (next->flags & CF_DESTROYED)) |
1354 | if (expect_false (next->flags & CF_DESTROYED)) |
1228 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1355 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
1229 | |
1356 | |
1230 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1357 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1231 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1358 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1232 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
1359 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1233 | #endif |
1360 | #endif |
1234 | } |
1361 | } |
1235 | } |
1362 | } |
1236 | |
1363 | |
1237 | /* always use the TRANSFER macro */ |
1364 | /* always use the TRANSFER macro */ |
1238 | static void NOINLINE |
1365 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1239 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1366 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1240 | { |
1367 | { |
1241 | dSTACKLEVEL; |
1368 | dSTACKLEVEL; |
1242 | |
1369 | |
1243 | /* sometimes transfer is only called to set idle_sp */ |
1370 | /* sometimes transfer is only called to set idle_sp */ |
1244 | if (expect_false (!next)) |
1371 | if (expect_false (!prev)) |
1245 | { |
1372 | { |
1246 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1373 | cctx_current->idle_sp = STACKLEVEL; |
1247 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1374 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1248 | } |
1375 | } |
1249 | else if (expect_true (prev != next)) |
1376 | else if (expect_true (prev != next)) |
1250 | { |
1377 | { |
1251 | static volatile int has_throw; |
|
|
1252 | coro_cctx *prev__cctx; |
1378 | coro_cctx *cctx_prev; |
1253 | |
1379 | |
1254 | if (expect_false (prev->flags & CF_NEW)) |
1380 | if (expect_false (prev->flags & CF_NEW)) |
1255 | { |
1381 | { |
1256 | /* create a new empty/source context */ |
1382 | /* create a new empty/source context */ |
1257 | ++cctx_count; |
|
|
1258 | New (0, prev->cctx, 1, coro_cctx); |
|
|
1259 | prev->cctx->sptr = 0; |
|
|
1260 | coro_create (&prev->cctx->cctx, 0, 0, 0, 0); |
|
|
1261 | |
|
|
1262 | prev->flags &= ~CF_NEW; |
1383 | prev->flags &= ~CF_NEW; |
1263 | prev->flags |= CF_RUNNING; |
1384 | prev->flags |= CF_RUNNING; |
1264 | } |
1385 | } |
1265 | |
1386 | |
1266 | prev->flags &= ~CF_RUNNING; |
1387 | prev->flags &= ~CF_RUNNING; |
1267 | next->flags |= CF_RUNNING; |
1388 | next->flags |= CF_RUNNING; |
1268 | |
|
|
1269 | LOCK; |
|
|
1270 | |
1389 | |
1271 | /* first get rid of the old state */ |
1390 | /* first get rid of the old state */ |
1272 | save_perl (aTHX_ prev); |
1391 | save_perl (aTHX_ prev); |
1273 | |
1392 | |
1274 | if (expect_false (next->flags & CF_NEW)) |
1393 | if (expect_false (next->flags & CF_NEW)) |
… | |
… | |
1279 | coro_setup (aTHX_ next); |
1398 | coro_setup (aTHX_ next); |
1280 | } |
1399 | } |
1281 | else |
1400 | else |
1282 | load_perl (aTHX_ next); |
1401 | load_perl (aTHX_ next); |
1283 | |
1402 | |
1284 | prev__cctx = prev->cctx; |
1403 | assert (!prev->cctx);//D temporary |
1285 | |
1404 | |
1286 | /* possibly "free" the cctx */ |
1405 | /* possibly untie and reuse the cctx */ |
1287 | if (expect_true ( |
1406 | if (expect_true ( |
1288 | prev__cctx->idle_sp == STACKLEVEL |
1407 | cctx_current->idle_sp == STACKLEVEL |
1289 | && !(prev__cctx->flags & CC_TRACE) |
1408 | && !(cctx_current->flags & CC_TRACE) |
1290 | && !force_cctx |
1409 | && !force_cctx |
1291 | )) |
1410 | )) |
1292 | { |
1411 | { |
1293 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1412 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1294 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1413 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1295 | |
1414 | |
1296 | prev->cctx = 0; |
|
|
1297 | |
|
|
1298 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1415 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1299 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1416 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1300 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
1417 | if (expect_false (CCTX_EXPIRED (cctx_current))) |
1301 | if (!next->cctx) |
1418 | if (expect_true (!next->cctx)) |
1302 | next->cctx = cctx_get (aTHX); |
1419 | next->cctx = cctx_get (aTHX); |
1303 | |
1420 | |
1304 | cctx_put (prev__cctx); |
1421 | cctx_put (cctx_current); |
1305 | } |
1422 | } |
|
|
1423 | else |
|
|
1424 | prev->cctx = cctx_current; |
1306 | |
1425 | |
1307 | ++next->usecount; |
1426 | ++next->usecount; |
1308 | |
1427 | |
1309 | if (expect_true (!next->cctx)) |
1428 | cctx_prev = cctx_current; |
1310 | next->cctx = cctx_get (aTHX); |
1429 | cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1311 | |
1430 | |
1312 | has_throw = !!next->throw; |
1431 | next->cctx = 0; |
1313 | |
1432 | |
1314 | if (expect_false (prev__cctx != next->cctx)) |
1433 | if (expect_false (cctx_prev != cctx_current)) |
1315 | { |
1434 | { |
1316 | prev__cctx->top_env = PL_top_env; |
1435 | cctx_prev->top_env = PL_top_env; |
1317 | PL_top_env = next->cctx->top_env; |
1436 | PL_top_env = cctx_current->top_env; |
1318 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1437 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1319 | } |
1438 | } |
1320 | |
1439 | |
1321 | free_coro_mortal (aTHX); |
1440 | transfer_tail (aTHX); |
1322 | UNLOCK; |
|
|
1323 | |
|
|
1324 | if (expect_false (has_throw)) |
|
|
1325 | { |
|
|
1326 | struct coro *coro = SvSTATE (coro_current); |
|
|
1327 | |
|
|
1328 | if (coro->throw) |
|
|
1329 | { |
|
|
1330 | SV *exception = coro->throw; |
|
|
1331 | coro->throw = 0; |
|
|
1332 | sv_setsv (ERRSV, exception); |
|
|
1333 | croak (0); |
|
|
1334 | } |
|
|
1335 | } |
|
|
1336 | } |
1441 | } |
1337 | } |
1442 | } |
1338 | |
|
|
1339 | struct transfer_args |
|
|
1340 | { |
|
|
1341 | struct coro *prev, *next; |
|
|
1342 | }; |
|
|
1343 | |
1443 | |
1344 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1444 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1345 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1445 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1346 | |
1446 | |
1347 | /** high level stuff ********************************************************/ |
1447 | /** high level stuff ********************************************************/ |
… | |
… | |
1349 | static int |
1449 | static int |
1350 | coro_state_destroy (pTHX_ struct coro *coro) |
1450 | coro_state_destroy (pTHX_ struct coro *coro) |
1351 | { |
1451 | { |
1352 | if (coro->flags & CF_DESTROYED) |
1452 | if (coro->flags & CF_DESTROYED) |
1353 | return 0; |
1453 | return 0; |
|
|
1454 | |
|
|
1455 | if (coro->on_destroy) |
|
|
1456 | coro->on_destroy (aTHX_ coro); |
1354 | |
1457 | |
1355 | coro->flags |= CF_DESTROYED; |
1458 | coro->flags |= CF_DESTROYED; |
1356 | |
1459 | |
1357 | if (coro->flags & CF_READY) |
1460 | if (coro->flags & CF_READY) |
1358 | { |
1461 | { |
1359 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1462 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1360 | /* alternative: look through all ready queues and remove the coro */ |
1463 | /* alternative: look through all ready queues and remove the coro */ |
1361 | LOCK; |
|
|
1362 | --coro_nready; |
1464 | --coro_nready; |
1363 | UNLOCK; |
|
|
1364 | } |
1465 | } |
1365 | else |
1466 | else |
1366 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1467 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1367 | |
1468 | |
1368 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1469 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1369 | { |
1470 | { |
1370 | struct coro temp; |
1471 | struct coro temp; |
1371 | |
1472 | |
1372 | if (coro->flags & CF_RUNNING) |
1473 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1373 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1374 | |
1474 | |
1375 | save_perl (aTHX_ &temp); |
1475 | save_perl (aTHX_ &temp); |
1376 | load_perl (aTHX_ coro); |
1476 | load_perl (aTHX_ coro); |
1377 | |
1477 | |
1378 | coro_destruct (aTHX_ coro); |
1478 | coro_destruct (aTHX_ coro); |
… | |
… | |
1381 | |
1481 | |
1382 | coro->slot = 0; |
1482 | coro->slot = 0; |
1383 | } |
1483 | } |
1384 | |
1484 | |
1385 | cctx_destroy (coro->cctx); |
1485 | cctx_destroy (coro->cctx); |
|
|
1486 | SvREFCNT_dec (coro->startcv); |
1386 | SvREFCNT_dec (coro->args); |
1487 | SvREFCNT_dec (coro->args); |
|
|
1488 | SvREFCNT_dec (CORO_THROW); |
1387 | |
1489 | |
1388 | if (coro->next) coro->next->prev = coro->prev; |
1490 | if (coro->next) coro->next->prev = coro->prev; |
1389 | if (coro->prev) coro->prev->next = coro->next; |
1491 | if (coro->prev) coro->prev->next = coro->next; |
1390 | if (coro == coro_first) coro_first = coro->next; |
1492 | if (coro == coro_first) coro_first = coro->next; |
1391 | |
1493 | |
… | |
… | |
1429 | # define MGf_DUP 0 |
1531 | # define MGf_DUP 0 |
1430 | #endif |
1532 | #endif |
1431 | }; |
1533 | }; |
1432 | |
1534 | |
1433 | static void |
1535 | static void |
1434 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1536 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1435 | { |
1537 | { |
1436 | ta->prev = SvSTATE (prev_sv); |
1538 | ta->prev = SvSTATE (prev_sv); |
1437 | ta->next = SvSTATE (next_sv); |
1539 | ta->next = SvSTATE (next_sv); |
1438 | TRANSFER_CHECK (*ta); |
1540 | TRANSFER_CHECK (*ta); |
1439 | } |
1541 | } |
1440 | |
1542 | |
1441 | static void |
1543 | static void |
1442 | api_transfer (SV *prev_sv, SV *next_sv) |
1544 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1443 | { |
1545 | { |
1444 | dTHX; |
|
|
1445 | struct transfer_args ta; |
1546 | struct coro_transfer_args ta; |
1446 | |
1547 | |
1447 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1548 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1448 | TRANSFER (ta, 1); |
1549 | TRANSFER (ta, 1); |
1449 | } |
1550 | } |
1450 | |
1551 | |
|
|
1552 | /*****************************************************************************/ |
|
|
1553 | /* gensub: simple closure generation utility */ |
|
|
1554 | |
|
|
1555 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1556 | |
|
|
1557 | /* create a closure from XS, returns a code reference */ |
|
|
1558 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1559 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1560 | static SV * |
|
|
1561 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1562 | { |
|
|
1563 | CV *cv = (CV *)newSV (0); |
|
|
1564 | |
|
|
1565 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1566 | |
|
|
1567 | CvANON_on (cv); |
|
|
1568 | CvISXSUB_on (cv); |
|
|
1569 | CvXSUB (cv) = xsub; |
|
|
1570 | GENSUB_ARG = arg; |
|
|
1571 | |
|
|
1572 | return newRV_noinc ((SV *)cv); |
|
|
1573 | } |
|
|
1574 | |
1451 | /** Coro ********************************************************************/ |
1575 | /** Coro ********************************************************************/ |
1452 | |
1576 | |
1453 | static void |
1577 | INLINE void |
1454 | coro_enq (pTHX_ SV *coro_sv) |
1578 | coro_enq (pTHX_ struct coro *coro) |
1455 | { |
1579 | { |
1456 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1580 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1457 | } |
1581 | } |
1458 | |
1582 | |
1459 | static SV * |
1583 | INLINE SV * |
1460 | coro_deq (pTHX) |
1584 | coro_deq (pTHX) |
1461 | { |
1585 | { |
1462 | int prio; |
1586 | int prio; |
1463 | |
1587 | |
1464 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1588 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
… | |
… | |
1467 | |
1591 | |
1468 | return 0; |
1592 | return 0; |
1469 | } |
1593 | } |
1470 | |
1594 | |
1471 | static int |
1595 | static int |
1472 | api_ready (SV *coro_sv) |
1596 | api_ready (pTHX_ SV *coro_sv) |
1473 | { |
1597 | { |
1474 | dTHX; |
|
|
1475 | struct coro *coro; |
1598 | struct coro *coro; |
1476 | SV *sv_hook; |
1599 | SV *sv_hook; |
1477 | void (*xs_hook)(void); |
1600 | void (*xs_hook)(void); |
1478 | |
1601 | |
1479 | if (SvROK (coro_sv)) |
|
|
1480 | coro_sv = SvRV (coro_sv); |
|
|
1481 | |
|
|
1482 | coro = SvSTATE (coro_sv); |
1602 | coro = SvSTATE (coro_sv); |
1483 | |
1603 | |
1484 | if (coro->flags & CF_READY) |
1604 | if (coro->flags & CF_READY) |
1485 | return 0; |
1605 | return 0; |
1486 | |
1606 | |
1487 | coro->flags |= CF_READY; |
1607 | coro->flags |= CF_READY; |
1488 | |
1608 | |
1489 | LOCK; |
|
|
1490 | |
|
|
1491 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1609 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1492 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1610 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1493 | |
1611 | |
1494 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
1612 | coro_enq (aTHX_ coro); |
1495 | ++coro_nready; |
1613 | ++coro_nready; |
1496 | |
1614 | |
1497 | UNLOCK; |
|
|
1498 | |
|
|
1499 | if (sv_hook) |
1615 | if (sv_hook) |
1500 | { |
1616 | { |
1501 | dSP; |
1617 | dSP; |
1502 | |
1618 | |
1503 | ENTER; |
1619 | ENTER; |
1504 | SAVETMPS; |
1620 | SAVETMPS; |
1505 | |
1621 | |
1506 | PUSHMARK (SP); |
1622 | PUSHMARK (SP); |
1507 | PUTBACK; |
1623 | PUTBACK; |
1508 | call_sv (sv_hook, G_DISCARD); |
1624 | call_sv (sv_hook, G_VOID | G_DISCARD); |
1509 | SPAGAIN; |
|
|
1510 | |
1625 | |
1511 | FREETMPS; |
1626 | FREETMPS; |
1512 | LEAVE; |
1627 | LEAVE; |
1513 | } |
1628 | } |
1514 | |
1629 | |
… | |
… | |
1517 | |
1632 | |
1518 | return 1; |
1633 | return 1; |
1519 | } |
1634 | } |
1520 | |
1635 | |
1521 | static int |
1636 | static int |
1522 | api_is_ready (SV *coro_sv) |
1637 | api_is_ready (pTHX_ SV *coro_sv) |
1523 | { |
1638 | { |
1524 | dTHX; |
|
|
1525 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1639 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1526 | } |
1640 | } |
1527 | |
1641 | |
1528 | static void |
1642 | /* expects to own a reference to next->hv */ |
|
|
1643 | INLINE void |
1529 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1644 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1530 | { |
1645 | { |
1531 | SV *prev_sv, *next_sv; |
|
|
1532 | |
|
|
1533 | for (;;) |
|
|
1534 | { |
|
|
1535 | LOCK; |
|
|
1536 | next_sv = coro_deq (aTHX); |
|
|
1537 | |
|
|
1538 | /* nothing to schedule: call the idle handler */ |
|
|
1539 | if (expect_false (!next_sv)) |
|
|
1540 | { |
|
|
1541 | dSP; |
|
|
1542 | UNLOCK; |
|
|
1543 | |
|
|
1544 | ENTER; |
|
|
1545 | SAVETMPS; |
|
|
1546 | |
|
|
1547 | PUSHMARK (SP); |
|
|
1548 | PUTBACK; |
|
|
1549 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1550 | SPAGAIN; |
|
|
1551 | |
|
|
1552 | FREETMPS; |
|
|
1553 | LEAVE; |
|
|
1554 | continue; |
|
|
1555 | } |
|
|
1556 | |
|
|
1557 | ta->next = SvSTATE (next_sv); |
|
|
1558 | |
|
|
1559 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1560 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1561 | { |
|
|
1562 | UNLOCK; |
|
|
1563 | SvREFCNT_dec (next_sv); |
|
|
1564 | /* coro_nready is already taken care of by destroy */ |
|
|
1565 | continue; |
|
|
1566 | } |
|
|
1567 | |
|
|
1568 | --coro_nready; |
|
|
1569 | UNLOCK; |
|
|
1570 | break; |
|
|
1571 | } |
|
|
1572 | |
|
|
1573 | /* free this only after the transfer */ |
|
|
1574 | prev_sv = SvRV (coro_current); |
1646 | SV *prev_sv = SvRV (coro_current); |
|
|
1647 | |
1575 | ta->prev = SvSTATE (prev_sv); |
1648 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1649 | ta->next = next; |
|
|
1650 | |
1576 | TRANSFER_CHECK (*ta); |
1651 | TRANSFER_CHECK (*ta); |
1577 | assert (ta->next->flags & CF_READY); |
1652 | |
1578 | ta->next->flags &= ~CF_READY; |
|
|
1579 | SvRV_set (coro_current, next_sv); |
1653 | SvRV_set (coro_current, (SV *)next->hv); |
1580 | |
1654 | |
1581 | LOCK; |
|
|
1582 | free_coro_mortal (aTHX); |
1655 | free_coro_mortal (aTHX); |
1583 | coro_mortal = prev_sv; |
1656 | coro_mortal = prev_sv; |
1584 | UNLOCK; |
|
|
1585 | } |
1657 | } |
1586 | |
1658 | |
1587 | static void |
1659 | static void |
|
|
1660 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1661 | { |
|
|
1662 | for (;;) |
|
|
1663 | { |
|
|
1664 | SV *next_sv = coro_deq (aTHX); |
|
|
1665 | |
|
|
1666 | if (expect_true (next_sv)) |
|
|
1667 | { |
|
|
1668 | struct coro *next = SvSTATE_hv (next_sv); |
|
|
1669 | |
|
|
1670 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1671 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1672 | SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ |
|
|
1673 | else |
|
|
1674 | { |
|
|
1675 | next->flags &= ~CF_READY; |
|
|
1676 | --coro_nready; |
|
|
1677 | |
|
|
1678 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1679 | break; |
|
|
1680 | } |
|
|
1681 | } |
|
|
1682 | else |
|
|
1683 | { |
|
|
1684 | /* nothing to schedule: call the idle handler */ |
|
|
1685 | if (SvROK (sv_idle) |
|
|
1686 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1687 | { |
|
|
1688 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1689 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1690 | --coro_nready; |
|
|
1691 | } |
|
|
1692 | else |
|
|
1693 | { |
|
|
1694 | dSP; |
|
|
1695 | |
|
|
1696 | ENTER; |
|
|
1697 | SAVETMPS; |
|
|
1698 | |
|
|
1699 | PUSHMARK (SP); |
|
|
1700 | PUTBACK; |
|
|
1701 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1702 | |
|
|
1703 | FREETMPS; |
|
|
1704 | LEAVE; |
|
|
1705 | } |
|
|
1706 | } |
|
|
1707 | } |
|
|
1708 | } |
|
|
1709 | |
|
|
1710 | INLINE void |
1588 | prepare_cede (pTHX_ struct transfer_args *ta) |
1711 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1589 | { |
1712 | { |
1590 | api_ready (coro_current); |
1713 | api_ready (aTHX_ coro_current); |
1591 | prepare_schedule (aTHX_ ta); |
1714 | prepare_schedule (aTHX_ ta); |
1592 | } |
1715 | } |
1593 | |
1716 | |
|
|
1717 | INLINE void |
|
|
1718 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1719 | { |
|
|
1720 | SV *prev = SvRV (coro_current); |
|
|
1721 | |
|
|
1722 | if (coro_nready) |
|
|
1723 | { |
|
|
1724 | prepare_schedule (aTHX_ ta); |
|
|
1725 | api_ready (aTHX_ prev); |
|
|
1726 | } |
|
|
1727 | else |
|
|
1728 | prepare_nop (aTHX_ ta); |
|
|
1729 | } |
|
|
1730 | |
|
|
1731 | static void |
|
|
1732 | api_schedule (pTHX) |
|
|
1733 | { |
|
|
1734 | struct coro_transfer_args ta; |
|
|
1735 | |
|
|
1736 | prepare_schedule (aTHX_ &ta); |
|
|
1737 | TRANSFER (ta, 1); |
|
|
1738 | } |
|
|
1739 | |
|
|
1740 | static void |
|
|
1741 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1742 | { |
|
|
1743 | struct coro_transfer_args ta; |
|
|
1744 | struct coro *next = SvSTATE (coro_sv); |
|
|
1745 | |
|
|
1746 | SvREFCNT_inc_NN (coro_sv); |
|
|
1747 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
1748 | } |
|
|
1749 | |
1594 | static int |
1750 | static int |
1595 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1751 | api_cede (pTHX) |
1596 | { |
1752 | { |
1597 | if (coro_nready) |
1753 | struct coro_transfer_args ta; |
1598 | { |
1754 | |
1599 | SV *prev = SvRV (coro_current); |
|
|
1600 | prepare_schedule (aTHX_ ta); |
1755 | prepare_cede (aTHX_ &ta); |
1601 | api_ready (prev); |
1756 | |
|
|
1757 | if (expect_true (ta.prev != ta.next)) |
|
|
1758 | { |
|
|
1759 | TRANSFER (ta, 1); |
1602 | return 1; |
1760 | return 1; |
1603 | } |
1761 | } |
1604 | else |
1762 | else |
1605 | return 0; |
1763 | return 0; |
1606 | } |
1764 | } |
1607 | |
1765 | |
1608 | static void |
|
|
1609 | api_schedule (void) |
|
|
1610 | { |
|
|
1611 | dTHX; |
|
|
1612 | struct transfer_args ta; |
|
|
1613 | |
|
|
1614 | prepare_schedule (aTHX_ &ta); |
|
|
1615 | TRANSFER (ta, 1); |
|
|
1616 | } |
|
|
1617 | |
|
|
1618 | static int |
1766 | static int |
1619 | api_cede (void) |
1767 | api_cede_notself (pTHX) |
1620 | { |
1768 | { |
1621 | dTHX; |
1769 | if (coro_nready) |
|
|
1770 | { |
1622 | struct transfer_args ta; |
1771 | struct coro_transfer_args ta; |
1623 | |
1772 | |
1624 | prepare_cede (aTHX_ &ta); |
1773 | prepare_cede_notself (aTHX_ &ta); |
1625 | |
|
|
1626 | if (expect_true (ta.prev != ta.next)) |
|
|
1627 | { |
|
|
1628 | TRANSFER (ta, 1); |
1774 | TRANSFER (ta, 1); |
1629 | return 1; |
1775 | return 1; |
1630 | } |
1776 | } |
1631 | else |
1777 | else |
1632 | return 0; |
1778 | return 0; |
1633 | } |
1779 | } |
1634 | |
1780 | |
1635 | static int |
1781 | static void |
1636 | api_cede_notself (void) |
|
|
1637 | { |
|
|
1638 | dTHX; |
|
|
1639 | struct transfer_args ta; |
|
|
1640 | |
|
|
1641 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1642 | { |
|
|
1643 | TRANSFER (ta, 1); |
|
|
1644 | return 1; |
|
|
1645 | } |
|
|
1646 | else |
|
|
1647 | return 0; |
|
|
1648 | } |
|
|
1649 | |
|
|
1650 | static void |
|
|
1651 | api_trace (SV *coro_sv, int flags) |
1782 | api_trace (pTHX_ SV *coro_sv, int flags) |
1652 | { |
1783 | { |
1653 | dTHX; |
|
|
1654 | struct coro *coro = SvSTATE (coro_sv); |
1784 | struct coro *coro = SvSTATE (coro_sv); |
1655 | |
1785 | |
|
|
1786 | if (coro->flags & CF_RUNNING) |
|
|
1787 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
1788 | |
1656 | if (flags & CC_TRACE) |
1789 | if (flags & CC_TRACE) |
1657 | { |
1790 | { |
1658 | if (!coro->cctx) |
1791 | if (!coro->cctx) |
1659 | coro->cctx = cctx_new (); |
1792 | coro->cctx = cctx_new_run (); |
1660 | else if (!(coro->cctx->flags & CC_TRACE)) |
1793 | else if (!(coro->cctx->flags & CC_TRACE)) |
1661 | croak ("cannot enable tracing on coroutine with custom stack"); |
1794 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1662 | |
1795 | |
1663 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1796 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1664 | } |
1797 | } |
1665 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1798 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1666 | { |
1799 | { |
… | |
… | |
1671 | else |
1804 | else |
1672 | coro->slot->runops = RUNOPS_DEFAULT; |
1805 | coro->slot->runops = RUNOPS_DEFAULT; |
1673 | } |
1806 | } |
1674 | } |
1807 | } |
1675 | |
1808 | |
1676 | #if 0 |
1809 | static void |
|
|
1810 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
1811 | { |
|
|
1812 | SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); |
|
|
1813 | SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0); |
|
|
1814 | |
|
|
1815 | if (on_destroyp) |
|
|
1816 | { |
|
|
1817 | AV *on_destroy = (AV *)SvRV (*on_destroyp); |
|
|
1818 | |
|
|
1819 | while (AvFILLp (on_destroy) >= 0) |
|
|
1820 | { |
|
|
1821 | dSP; /* don't disturb outer sp */ |
|
|
1822 | SV *cb = av_pop (on_destroy); |
|
|
1823 | |
|
|
1824 | PUSHMARK (SP); |
|
|
1825 | |
|
|
1826 | if (statusp) |
|
|
1827 | { |
|
|
1828 | int i; |
|
|
1829 | AV *status = (AV *)SvRV (*statusp); |
|
|
1830 | EXTEND (SP, AvFILLp (status) + 1); |
|
|
1831 | |
|
|
1832 | for (i = 0; i <= AvFILLp (status); ++i) |
|
|
1833 | PUSHs (AvARRAY (status)[i]); |
|
|
1834 | } |
|
|
1835 | |
|
|
1836 | PUTBACK; |
|
|
1837 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
|
|
1838 | } |
|
|
1839 | } |
|
|
1840 | } |
|
|
1841 | |
|
|
1842 | static void |
|
|
1843 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1844 | { |
|
|
1845 | int i; |
|
|
1846 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1847 | AV *av = newAV (); |
|
|
1848 | |
|
|
1849 | av_extend (av, items - 1); |
|
|
1850 | for (i = 0; i < items; ++i) |
|
|
1851 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
1852 | |
|
|
1853 | hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); |
|
|
1854 | |
|
|
1855 | av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ |
|
|
1856 | api_ready (aTHX_ sv_manager); |
|
|
1857 | |
|
|
1858 | frame->prepare = prepare_schedule; |
|
|
1859 | frame->check = slf_check_repeat; |
|
|
1860 | } |
|
|
1861 | |
|
|
1862 | /*****************************************************************************/ |
|
|
1863 | /* async pool handler */ |
|
|
1864 | |
1677 | static int |
1865 | static int |
1678 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
1866 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
1679 | { |
1867 | { |
1680 | AV *padlist; |
1868 | HV *hv = (HV *)SvRV (coro_current); |
1681 | AV *av = (AV *)mg->mg_obj; |
1869 | struct coro *coro = (struct coro *)frame->data; |
1682 | |
1870 | |
1683 | abort (); |
1871 | if (!coro->invoke_cb) |
|
|
1872 | return 1; /* loop till we have invoke */ |
|
|
1873 | else |
|
|
1874 | { |
|
|
1875 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1876 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1877 | |
|
|
1878 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
1879 | |
|
|
1880 | { |
|
|
1881 | dSP; |
|
|
1882 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
1883 | PUTBACK; |
|
|
1884 | } |
|
|
1885 | |
|
|
1886 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
1887 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
1888 | coro->invoke_av = 0; |
|
|
1889 | |
|
|
1890 | return 0; |
|
|
1891 | } |
|
|
1892 | } |
|
|
1893 | |
|
|
1894 | static void |
|
|
1895 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1896 | { |
|
|
1897 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1898 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
1899 | |
|
|
1900 | if (expect_true (coro->saved_deffh)) |
|
|
1901 | { |
|
|
1902 | /* subsequent iteration */ |
|
|
1903 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1904 | coro->saved_deffh = 0; |
|
|
1905 | |
|
|
1906 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
1907 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1908 | { |
|
|
1909 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
|
|
1910 | coro->invoke_av = newAV (); |
|
|
1911 | |
|
|
1912 | frame->prepare = prepare_nop; |
|
|
1913 | } |
|
|
1914 | else |
|
|
1915 | { |
|
|
1916 | av_clear (GvAV (PL_defgv)); |
|
|
1917 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
1918 | |
|
|
1919 | coro->prio = 0; |
|
|
1920 | |
|
|
1921 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1922 | api_trace (aTHX_ coro_current, 0); |
|
|
1923 | |
|
|
1924 | frame->prepare = prepare_schedule; |
|
|
1925 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
1926 | } |
|
|
1927 | } |
|
|
1928 | else |
|
|
1929 | { |
|
|
1930 | /* first iteration, simply fall through */ |
|
|
1931 | frame->prepare = prepare_nop; |
|
|
1932 | } |
|
|
1933 | |
|
|
1934 | frame->check = slf_check_pool_handler; |
|
|
1935 | frame->data = (void *)coro; |
|
|
1936 | } |
|
|
1937 | |
|
|
1938 | /*****************************************************************************/ |
|
|
1939 | /* rouse callback */ |
|
|
1940 | |
|
|
1941 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
1942 | |
|
|
1943 | static void |
|
|
1944 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
1945 | { |
|
|
1946 | dXSARGS; |
|
|
1947 | SV *data = (SV *)GENSUB_ARG; |
|
|
1948 | |
|
|
1949 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1950 | { |
|
|
1951 | /* first call, set args */ |
|
|
1952 | AV *av = newAV (); |
|
|
1953 | SV *coro = SvRV (data); |
|
|
1954 | |
|
|
1955 | SvRV_set (data, (SV *)av); |
|
|
1956 | api_ready (aTHX_ coro); |
|
|
1957 | SvREFCNT_dec (coro); |
|
|
1958 | |
|
|
1959 | /* better take a full copy of the arguments */ |
|
|
1960 | while (items--) |
|
|
1961 | av_store (av, items, newSVsv (ST (items))); |
|
|
1962 | } |
|
|
1963 | |
|
|
1964 | XSRETURN_EMPTY; |
|
|
1965 | } |
|
|
1966 | |
|
|
1967 | static int |
|
|
1968 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
1969 | { |
|
|
1970 | SV *data = (SV *)frame->data; |
|
|
1971 | |
|
|
1972 | if (CORO_THROW) |
|
|
1973 | return 0; |
|
|
1974 | |
|
|
1975 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1976 | return 1; |
|
|
1977 | |
|
|
1978 | /* now push all results on the stack */ |
|
|
1979 | { |
|
|
1980 | dSP; |
|
|
1981 | AV *av = (AV *)SvRV (data); |
|
|
1982 | int i; |
|
|
1983 | |
|
|
1984 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
1985 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
1986 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
1987 | |
|
|
1988 | /* we have stolen the elements, so ste length to zero and free */ |
|
|
1989 | AvFILLp (av) = -1; |
|
|
1990 | av_undef (av); |
|
|
1991 | |
|
|
1992 | PUTBACK; |
|
|
1993 | } |
1684 | |
1994 | |
1685 | return 0; |
1995 | return 0; |
1686 | } |
1996 | } |
1687 | |
1997 | |
1688 | static MGVTBL coro_gensub_vtbl = { |
1998 | static void |
1689 | 0, 0, 0, 0, |
1999 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1690 | coro_gensub_free |
2000 | { |
1691 | }; |
2001 | SV *cb; |
1692 | #endif |
2002 | |
|
|
2003 | if (items) |
|
|
2004 | cb = arg [0]; |
|
|
2005 | else |
|
|
2006 | { |
|
|
2007 | struct coro *coro = SvSTATE_current; |
|
|
2008 | |
|
|
2009 | if (!coro->rouse_cb) |
|
|
2010 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2011 | |
|
|
2012 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2013 | coro->rouse_cb = 0; |
|
|
2014 | } |
|
|
2015 | |
|
|
2016 | if (!SvROK (cb) |
|
|
2017 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2018 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2019 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2020 | |
|
|
2021 | { |
|
|
2022 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
2023 | SV *data = (SV *)GENSUB_ARG; |
|
|
2024 | |
|
|
2025 | frame->data = (void *)data; |
|
|
2026 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2027 | frame->check = slf_check_rouse_wait; |
|
|
2028 | } |
|
|
2029 | } |
|
|
2030 | |
|
|
2031 | static SV * |
|
|
2032 | coro_new_rouse_cb (pTHX) |
|
|
2033 | { |
|
|
2034 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2035 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2036 | SV *data = newRV_inc ((SV *)hv); |
|
|
2037 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2038 | |
|
|
2039 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2040 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2041 | |
|
|
2042 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2043 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2044 | |
|
|
2045 | return cb; |
|
|
2046 | } |
|
|
2047 | |
|
|
2048 | /*****************************************************************************/ |
|
|
2049 | /* schedule-like-function opcode (SLF) */ |
|
|
2050 | |
|
|
2051 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2052 | static const CV *slf_cv; |
|
|
2053 | static SV **slf_argv; |
|
|
2054 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2055 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2056 | |
|
|
2057 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2058 | /* recreate the stack frame as perl will on following calls */ |
|
|
2059 | /* since entersub cleared the stack */ |
|
|
2060 | static OP * |
|
|
2061 | pp_restore (pTHX) |
|
|
2062 | { |
|
|
2063 | int i; |
|
|
2064 | SV **SP = PL_stack_base + slf_ax; |
|
|
2065 | |
|
|
2066 | PUSHMARK (SP); |
|
|
2067 | |
|
|
2068 | EXTEND (SP, slf_argc + 1); |
|
|
2069 | |
|
|
2070 | for (i = 0; i < slf_argc; ++i) |
|
|
2071 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2072 | |
|
|
2073 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2074 | |
|
|
2075 | RETURNOP (slf_restore.op_first); |
|
|
2076 | } |
|
|
2077 | |
|
|
2078 | static void |
|
|
2079 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2080 | { |
|
|
2081 | SV **arg = (SV **)slf_frame.data; |
|
|
2082 | |
|
|
2083 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2084 | } |
|
|
2085 | |
|
|
2086 | static void |
|
|
2087 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2088 | { |
|
|
2089 | if (items != 2) |
|
|
2090 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2091 | |
|
|
2092 | frame->prepare = slf_prepare_transfer; |
|
|
2093 | frame->check = slf_check_nop; |
|
|
2094 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2095 | } |
|
|
2096 | |
|
|
2097 | static void |
|
|
2098 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2099 | { |
|
|
2100 | frame->prepare = prepare_schedule; |
|
|
2101 | frame->check = slf_check_nop; |
|
|
2102 | } |
|
|
2103 | |
|
|
2104 | static void |
|
|
2105 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2106 | { |
|
|
2107 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2108 | |
|
|
2109 | SvREFCNT_inc_NN (next->hv); |
|
|
2110 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2111 | } |
|
|
2112 | |
|
|
2113 | static void |
|
|
2114 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2115 | { |
|
|
2116 | if (!items) |
|
|
2117 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2118 | |
|
|
2119 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2120 | frame->prepare = slf_prepare_schedule_to; |
|
|
2121 | frame->check = slf_check_nop; |
|
|
2122 | } |
|
|
2123 | |
|
|
2124 | static void |
|
|
2125 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2126 | { |
|
|
2127 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2128 | |
|
|
2129 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2130 | } |
|
|
2131 | |
|
|
2132 | static void |
|
|
2133 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2134 | { |
|
|
2135 | frame->prepare = prepare_cede; |
|
|
2136 | frame->check = slf_check_nop; |
|
|
2137 | } |
|
|
2138 | |
|
|
2139 | static void |
|
|
2140 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2141 | { |
|
|
2142 | frame->prepare = prepare_cede_notself; |
|
|
2143 | frame->check = slf_check_nop; |
|
|
2144 | } |
|
|
2145 | |
|
|
2146 | /* |
|
|
2147 | * these not obviously related functions are all rolled into one |
|
|
2148 | * function to increase chances that they all will call transfer with the same |
|
|
2149 | * stack offset |
|
|
2150 | * SLF stands for "schedule-like-function". |
|
|
2151 | */ |
|
|
2152 | static OP * |
|
|
2153 | pp_slf (pTHX) |
|
|
2154 | { |
|
|
2155 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2156 | |
|
|
2157 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2158 | /* the latter happens when a new coro has been started */ |
|
|
2159 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2160 | if (expect_true (!slf_frame.prepare)) |
|
|
2161 | { |
|
|
2162 | /* first iteration */ |
|
|
2163 | dSP; |
|
|
2164 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2165 | int items = SP - arg; /* args without function object */ |
|
|
2166 | SV *gv = *sp; |
|
|
2167 | |
|
|
2168 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2169 | /* for us, divert to the real entersub */ |
|
|
2170 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2171 | || !GvCV (gv) |
|
|
2172 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2173 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2174 | |
|
|
2175 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2176 | { |
|
|
2177 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2178 | AV *av = GvAV (PL_defgv); |
|
|
2179 | arg = AvARRAY (av); |
|
|
2180 | items = AvFILLp (av) + 1; |
|
|
2181 | } |
|
|
2182 | |
|
|
2183 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2184 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2185 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2186 | |
|
|
2187 | /* pop args */ |
|
|
2188 | SP = PL_stack_base + POPMARK; |
|
|
2189 | |
|
|
2190 | PUTBACK; |
|
|
2191 | } |
|
|
2192 | |
|
|
2193 | /* now that we have a slf_frame, interpret it! */ |
|
|
2194 | /* we use a callback system not to make the code needlessly */ |
|
|
2195 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2196 | |
|
|
2197 | do |
|
|
2198 | { |
|
|
2199 | struct coro_transfer_args ta; |
|
|
2200 | |
|
|
2201 | slf_frame.prepare (aTHX_ &ta); |
|
|
2202 | TRANSFER (ta, 0); |
|
|
2203 | |
|
|
2204 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2205 | } |
|
|
2206 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2207 | |
|
|
2208 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2209 | |
|
|
2210 | /* exception handling */ |
|
|
2211 | if (expect_false (CORO_THROW)) |
|
|
2212 | { |
|
|
2213 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2214 | |
|
|
2215 | CORO_THROW = 0; |
|
|
2216 | sv_setsv (ERRSV, exception); |
|
|
2217 | croak (0); |
|
|
2218 | } |
|
|
2219 | |
|
|
2220 | /* return value handling - mostly like entersub */ |
|
|
2221 | /* make sure we put something on the stack in scalar context */ |
|
|
2222 | if (GIMME_V == G_SCALAR) |
|
|
2223 | { |
|
|
2224 | dSP; |
|
|
2225 | SV **bot = PL_stack_base + checkmark; |
|
|
2226 | |
|
|
2227 | if (sp == bot) /* too few, push undef */ |
|
|
2228 | bot [1] = &PL_sv_undef; |
|
|
2229 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2230 | bot [1] = *sp; |
|
|
2231 | |
|
|
2232 | SP = bot + 1; |
|
|
2233 | |
|
|
2234 | PUTBACK; |
|
|
2235 | } |
|
|
2236 | |
|
|
2237 | return NORMAL; |
|
|
2238 | } |
|
|
2239 | |
|
|
2240 | static void |
|
|
2241 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2242 | { |
|
|
2243 | int i; |
|
|
2244 | SV **arg = PL_stack_base + ax; |
|
|
2245 | int items = PL_stack_sp - arg + 1; |
|
|
2246 | |
|
|
2247 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2248 | |
|
|
2249 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2250 | && PL_op->op_ppaddr != pp_slf) |
|
|
2251 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2252 | |
|
|
2253 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2254 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2255 | slf_cv = cv; |
|
|
2256 | |
|
|
2257 | /* we patch the op, and then re-run the whole call */ |
|
|
2258 | /* we have to put the same argument on the stack for this to work */ |
|
|
2259 | /* and this will be done by pp_restore */ |
|
|
2260 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2261 | slf_restore.op_type = OP_CUSTOM; |
|
|
2262 | slf_restore.op_ppaddr = pp_restore; |
|
|
2263 | slf_restore.op_first = PL_op; |
|
|
2264 | |
|
|
2265 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2266 | |
|
|
2267 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2268 | { |
|
|
2269 | if (items > slf_arga) |
|
|
2270 | { |
|
|
2271 | slf_arga = items; |
|
|
2272 | free (slf_argv); |
|
|
2273 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2274 | } |
|
|
2275 | |
|
|
2276 | slf_argc = items; |
|
|
2277 | |
|
|
2278 | for (i = 0; i < items; ++i) |
|
|
2279 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2280 | } |
|
|
2281 | else |
|
|
2282 | slf_argc = 0; |
|
|
2283 | |
|
|
2284 | PL_op->op_ppaddr = pp_slf; |
|
|
2285 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2286 | |
|
|
2287 | PL_op = (OP *)&slf_restore; |
|
|
2288 | } |
1693 | |
2289 | |
1694 | /*****************************************************************************/ |
2290 | /*****************************************************************************/ |
1695 | /* PerlIO::cede */ |
2291 | /* PerlIO::cede */ |
1696 | |
2292 | |
1697 | typedef struct |
2293 | typedef struct |
… | |
… | |
1725 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2321 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1726 | double now = nvtime (); |
2322 | double now = nvtime (); |
1727 | |
2323 | |
1728 | if (now >= self->next) |
2324 | if (now >= self->next) |
1729 | { |
2325 | { |
1730 | api_cede (); |
2326 | api_cede (aTHX); |
1731 | self->next = now + self->every; |
2327 | self->next = now + self->every; |
1732 | } |
2328 | } |
1733 | |
2329 | |
1734 | return PerlIOBuf_flush (aTHX_ f); |
2330 | return PerlIOBuf_flush (aTHX_ f); |
1735 | } |
2331 | } |
… | |
… | |
1764 | PerlIOBuf_get_ptr, |
2360 | PerlIOBuf_get_ptr, |
1765 | PerlIOBuf_get_cnt, |
2361 | PerlIOBuf_get_cnt, |
1766 | PerlIOBuf_set_ptrcnt, |
2362 | PerlIOBuf_set_ptrcnt, |
1767 | }; |
2363 | }; |
1768 | |
2364 | |
|
|
2365 | /*****************************************************************************/ |
|
|
2366 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2367 | |
|
|
2368 | static SV * |
|
|
2369 | coro_waitarray_new (pTHX_ int count) |
|
|
2370 | { |
|
|
2371 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2372 | AV *av = newAV (); |
|
|
2373 | SV **ary; |
|
|
2374 | |
|
|
2375 | /* unfortunately, building manually saves memory */ |
|
|
2376 | Newx (ary, 2, SV *); |
|
|
2377 | AvALLOC (av) = ary; |
|
|
2378 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2379 | AvARRAY (av) = ary; |
|
|
2380 | #else |
|
|
2381 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2382 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2383 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2384 | #endif |
|
|
2385 | AvMAX (av) = 1; |
|
|
2386 | AvFILLp (av) = 0; |
|
|
2387 | ary [0] = newSViv (count); |
|
|
2388 | |
|
|
2389 | return newRV_noinc ((SV *)av); |
|
|
2390 | } |
|
|
2391 | |
|
|
2392 | /* semaphore */ |
|
|
2393 | |
|
|
2394 | static void |
|
|
2395 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2396 | { |
|
|
2397 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2398 | IV count = SvIVX (count_sv); |
|
|
2399 | |
|
|
2400 | count += adjust; |
|
|
2401 | SvIVX (count_sv) = count; |
|
|
2402 | |
|
|
2403 | /* now wake up as many waiters as are expected to lock */ |
|
|
2404 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2405 | { |
|
|
2406 | SV *cb; |
|
|
2407 | |
|
|
2408 | /* swap first two elements so we can shift a waiter */ |
|
|
2409 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2410 | AvARRAY (av)[1] = count_sv; |
|
|
2411 | cb = av_shift (av); |
|
|
2412 | |
|
|
2413 | if (SvOBJECT (cb)) |
|
|
2414 | { |
|
|
2415 | api_ready (aTHX_ cb); |
|
|
2416 | --count; |
|
|
2417 | } |
|
|
2418 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2419 | { |
|
|
2420 | dSP; |
|
|
2421 | PUSHMARK (SP); |
|
|
2422 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2423 | PUTBACK; |
|
|
2424 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2425 | } |
|
|
2426 | |
|
|
2427 | SvREFCNT_dec (cb); |
|
|
2428 | } |
|
|
2429 | } |
|
|
2430 | |
|
|
2431 | static void |
|
|
2432 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2433 | { |
|
|
2434 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2435 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2436 | } |
|
|
2437 | |
|
|
2438 | static int |
|
|
2439 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2440 | { |
|
|
2441 | AV *av = (AV *)frame->data; |
|
|
2442 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2443 | |
|
|
2444 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2445 | if (CORO_THROW) |
|
|
2446 | return 0; |
|
|
2447 | else if (SvIVX (count_sv) > 0) |
|
|
2448 | { |
|
|
2449 | SvSTATE_current->on_destroy = 0; |
|
|
2450 | |
|
|
2451 | if (acquire) |
|
|
2452 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2453 | else |
|
|
2454 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2455 | |
|
|
2456 | return 0; |
|
|
2457 | } |
|
|
2458 | else |
|
|
2459 | { |
|
|
2460 | int i; |
|
|
2461 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2462 | /* waiters list and only add us if we aren't in there already */ |
|
|
2463 | /* this avoids some degenerate memory usage cases */ |
|
|
2464 | |
|
|
2465 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2466 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2467 | return 1; |
|
|
2468 | |
|
|
2469 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2470 | return 1; |
|
|
2471 | } |
|
|
2472 | } |
|
|
2473 | |
|
|
2474 | static int |
|
|
2475 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2476 | { |
|
|
2477 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2478 | } |
|
|
2479 | |
|
|
2480 | static int |
|
|
2481 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2482 | { |
|
|
2483 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2484 | } |
|
|
2485 | |
|
|
2486 | static void |
|
|
2487 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2488 | { |
|
|
2489 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2490 | |
|
|
2491 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2492 | { |
|
|
2493 | frame->data = (void *)av; |
|
|
2494 | frame->prepare = prepare_nop; |
|
|
2495 | } |
|
|
2496 | else |
|
|
2497 | { |
|
|
2498 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2499 | |
|
|
2500 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2501 | frame->prepare = prepare_schedule; |
|
|
2502 | |
|
|
2503 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2504 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2505 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2506 | } |
|
|
2507 | } |
|
|
2508 | |
|
|
2509 | static void |
|
|
2510 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2511 | { |
|
|
2512 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2513 | frame->check = slf_check_semaphore_down; |
|
|
2514 | } |
|
|
2515 | |
|
|
2516 | static void |
|
|
2517 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2518 | { |
|
|
2519 | if (items >= 2) |
|
|
2520 | { |
|
|
2521 | /* callback form */ |
|
|
2522 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2523 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2524 | |
|
|
2525 | av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); |
|
|
2526 | |
|
|
2527 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2528 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2529 | |
|
|
2530 | frame->prepare = prepare_nop; |
|
|
2531 | frame->check = slf_check_nop; |
|
|
2532 | } |
|
|
2533 | else |
|
|
2534 | { |
|
|
2535 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2536 | frame->check = slf_check_semaphore_wait; |
|
|
2537 | } |
|
|
2538 | } |
|
|
2539 | |
|
|
2540 | /* signal */ |
|
|
2541 | |
|
|
2542 | static void |
|
|
2543 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2544 | { |
|
|
2545 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2546 | |
|
|
2547 | /* now signal count waiters */ |
|
|
2548 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2549 | { |
|
|
2550 | SV *cb; |
|
|
2551 | |
|
|
2552 | /* swap first two elements so we can shift a waiter */ |
|
|
2553 | cb = AvARRAY (av)[0]; |
|
|
2554 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2555 | AvARRAY (av)[1] = cb; |
|
|
2556 | |
|
|
2557 | cb = av_shift (av); |
|
|
2558 | |
|
|
2559 | api_ready (aTHX_ cb); |
|
|
2560 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2561 | SvREFCNT_dec (cb); |
|
|
2562 | |
|
|
2563 | --count; |
|
|
2564 | } |
|
|
2565 | } |
|
|
2566 | |
|
|
2567 | static int |
|
|
2568 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2569 | { |
|
|
2570 | /* if we are about to throw, also stop waiting */ |
|
|
2571 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2572 | } |
|
|
2573 | |
|
|
2574 | static void |
|
|
2575 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2576 | { |
|
|
2577 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2578 | |
|
|
2579 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2580 | { |
|
|
2581 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2582 | frame->prepare = prepare_nop; |
|
|
2583 | frame->check = slf_check_nop; |
|
|
2584 | } |
|
|
2585 | else |
|
|
2586 | { |
|
|
2587 | SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ |
|
|
2588 | |
|
|
2589 | av_push (av, waiter); |
|
|
2590 | |
|
|
2591 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2592 | frame->prepare = prepare_schedule; |
|
|
2593 | frame->check = slf_check_signal_wait; |
|
|
2594 | } |
|
|
2595 | } |
|
|
2596 | |
|
|
2597 | /*****************************************************************************/ |
|
|
2598 | /* Coro::AIO */ |
|
|
2599 | |
|
|
2600 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2601 | |
|
|
2602 | /* helper storage struct */ |
|
|
2603 | struct io_state |
|
|
2604 | { |
|
|
2605 | int errorno; |
|
|
2606 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2607 | int laststatval; |
|
|
2608 | Stat_t statcache; |
|
|
2609 | }; |
|
|
2610 | |
|
|
2611 | static void |
|
|
2612 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2613 | { |
|
|
2614 | dXSARGS; |
|
|
2615 | AV *state = (AV *)GENSUB_ARG; |
|
|
2616 | SV *coro = av_pop (state); |
|
|
2617 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2618 | |
|
|
2619 | av_extend (state, items - 1); |
|
|
2620 | |
|
|
2621 | sv_upgrade (data_sv, SVt_PV); |
|
|
2622 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2623 | SvPOK_only (data_sv); |
|
|
2624 | |
|
|
2625 | { |
|
|
2626 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2627 | |
|
|
2628 | data->errorno = errno; |
|
|
2629 | data->laststype = PL_laststype; |
|
|
2630 | data->laststatval = PL_laststatval; |
|
|
2631 | data->statcache = PL_statcache; |
|
|
2632 | } |
|
|
2633 | |
|
|
2634 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2635 | { |
|
|
2636 | int i; |
|
|
2637 | |
|
|
2638 | for (i = 0; i < items; ++i) |
|
|
2639 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2640 | } |
|
|
2641 | |
|
|
2642 | av_push (state, data_sv); |
|
|
2643 | |
|
|
2644 | api_ready (aTHX_ coro); |
|
|
2645 | SvREFCNT_dec (coro); |
|
|
2646 | SvREFCNT_dec ((AV *)state); |
|
|
2647 | } |
|
|
2648 | |
|
|
2649 | static int |
|
|
2650 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2651 | { |
|
|
2652 | AV *state = (AV *)frame->data; |
|
|
2653 | |
|
|
2654 | /* if we are about to throw, return early */ |
|
|
2655 | /* this does not cancel the aio request, but at least */ |
|
|
2656 | /* it quickly returns */ |
|
|
2657 | if (CORO_THROW) |
|
|
2658 | return 0; |
|
|
2659 | |
|
|
2660 | /* one element that is an RV? repeat! */ |
|
|
2661 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2662 | return 1; |
|
|
2663 | |
|
|
2664 | /* restore status */ |
|
|
2665 | { |
|
|
2666 | SV *data_sv = av_pop (state); |
|
|
2667 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2668 | |
|
|
2669 | errno = data->errorno; |
|
|
2670 | PL_laststype = data->laststype; |
|
|
2671 | PL_laststatval = data->laststatval; |
|
|
2672 | PL_statcache = data->statcache; |
|
|
2673 | |
|
|
2674 | SvREFCNT_dec (data_sv); |
|
|
2675 | } |
|
|
2676 | |
|
|
2677 | /* push result values */ |
|
|
2678 | { |
|
|
2679 | dSP; |
|
|
2680 | int i; |
|
|
2681 | |
|
|
2682 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2683 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2684 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2685 | |
|
|
2686 | PUTBACK; |
|
|
2687 | } |
|
|
2688 | |
|
|
2689 | return 0; |
|
|
2690 | } |
|
|
2691 | |
|
|
2692 | static void |
|
|
2693 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2694 | { |
|
|
2695 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2696 | SV *coro_hv = SvRV (coro_current); |
|
|
2697 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2698 | |
|
|
2699 | /* put our coroutine id on the state arg */ |
|
|
2700 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2701 | |
|
|
2702 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2703 | if (coro->prio) |
|
|
2704 | { |
|
|
2705 | dSP; |
|
|
2706 | |
|
|
2707 | static SV *prio_cv; |
|
|
2708 | static SV *prio_sv; |
|
|
2709 | |
|
|
2710 | if (expect_false (!prio_cv)) |
|
|
2711 | { |
|
|
2712 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2713 | prio_sv = newSViv (0); |
|
|
2714 | } |
|
|
2715 | |
|
|
2716 | PUSHMARK (SP); |
|
|
2717 | sv_setiv (prio_sv, coro->prio); |
|
|
2718 | XPUSHs (prio_sv); |
|
|
2719 | |
|
|
2720 | PUTBACK; |
|
|
2721 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2722 | } |
|
|
2723 | |
|
|
2724 | /* now call the original request */ |
|
|
2725 | { |
|
|
2726 | dSP; |
|
|
2727 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2728 | int i; |
|
|
2729 | |
|
|
2730 | PUSHMARK (SP); |
|
|
2731 | |
|
|
2732 | /* first push all args to the stack */ |
|
|
2733 | EXTEND (SP, items + 1); |
|
|
2734 | |
|
|
2735 | for (i = 0; i < items; ++i) |
|
|
2736 | PUSHs (arg [i]); |
|
|
2737 | |
|
|
2738 | /* now push the callback closure */ |
|
|
2739 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2740 | |
|
|
2741 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2742 | PUTBACK; |
|
|
2743 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2744 | } |
|
|
2745 | |
|
|
2746 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2747 | frame->data = (void *)state; |
|
|
2748 | frame->prepare = prepare_schedule; |
|
|
2749 | frame->check = slf_check_aio_req; |
|
|
2750 | } |
|
|
2751 | |
|
|
2752 | static void |
|
|
2753 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2754 | { |
|
|
2755 | dXSARGS; |
|
|
2756 | |
|
|
2757 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2758 | |
|
|
2759 | XSRETURN_EMPTY; |
|
|
2760 | } |
|
|
2761 | |
|
|
2762 | /*****************************************************************************/ |
|
|
2763 | |
|
|
2764 | #if CORO_CLONE |
|
|
2765 | # include "clone.c" |
|
|
2766 | #endif |
1769 | |
2767 | |
1770 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2768 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1771 | |
2769 | |
1772 | PROTOTYPES: DISABLE |
2770 | PROTOTYPES: DISABLE |
1773 | |
2771 | |
1774 | BOOT: |
2772 | BOOT: |
1775 | { |
2773 | { |
1776 | #ifdef USE_ITHREADS |
2774 | #ifdef USE_ITHREADS |
1777 | MUTEX_INIT (&coro_lock); |
|
|
1778 | # if CORO_PTHREAD |
2775 | # if CORO_PTHREAD |
1779 | coro_thx = PERL_GET_CONTEXT; |
2776 | coro_thx = PERL_GET_CONTEXT; |
1780 | # endif |
2777 | # endif |
1781 | #endif |
2778 | #endif |
1782 | BOOT_PAGESIZE; |
2779 | BOOT_PAGESIZE; |
|
|
2780 | |
|
|
2781 | cctx_current = cctx_new_empty (); |
1783 | |
2782 | |
1784 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2783 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1785 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2784 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
1786 | |
2785 | |
1787 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
2786 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
… | |
… | |
1803 | main_top_env = PL_top_env; |
2802 | main_top_env = PL_top_env; |
1804 | |
2803 | |
1805 | while (main_top_env->je_prev) |
2804 | while (main_top_env->je_prev) |
1806 | main_top_env = main_top_env->je_prev; |
2805 | main_top_env = main_top_env->je_prev; |
1807 | |
2806 | |
|
|
2807 | { |
|
|
2808 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2809 | |
|
|
2810 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2811 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
2812 | |
|
|
2813 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2814 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
2815 | } |
|
|
2816 | |
1808 | coroapi.ver = CORO_API_VERSION; |
2817 | coroapi.ver = CORO_API_VERSION; |
1809 | coroapi.rev = CORO_API_REVISION; |
2818 | coroapi.rev = CORO_API_REVISION; |
|
|
2819 | |
1810 | coroapi.transfer = api_transfer; |
2820 | coroapi.transfer = api_transfer; |
|
|
2821 | |
|
|
2822 | coroapi.sv_state = SvSTATE_; |
|
|
2823 | coroapi.execute_slf = api_execute_slf; |
|
|
2824 | coroapi.prepare_nop = prepare_nop; |
|
|
2825 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2826 | coroapi.prepare_cede = prepare_cede; |
|
|
2827 | coroapi.prepare_cede_notself = prepare_cede_notself; |
1811 | |
2828 | |
1812 | { |
2829 | { |
1813 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
2830 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
1814 | |
2831 | |
1815 | if (!svp) croak ("Time::HiRes is required"); |
2832 | if (!svp) croak ("Time::HiRes is required"); |
… | |
… | |
1821 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2838 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1822 | } |
2839 | } |
1823 | |
2840 | |
1824 | SV * |
2841 | SV * |
1825 | new (char *klass, ...) |
2842 | new (char *klass, ...) |
|
|
2843 | ALIAS: |
|
|
2844 | Coro::new = 1 |
1826 | CODE: |
2845 | CODE: |
1827 | { |
2846 | { |
1828 | struct coro *coro; |
2847 | struct coro *coro; |
1829 | MAGIC *mg; |
2848 | MAGIC *mg; |
1830 | HV *hv; |
2849 | HV *hv; |
|
|
2850 | CV *cb; |
1831 | int i; |
2851 | int i; |
|
|
2852 | |
|
|
2853 | if (items > 1) |
|
|
2854 | { |
|
|
2855 | cb = coro_sv_2cv (aTHX_ ST (1)); |
|
|
2856 | |
|
|
2857 | if (!ix) |
|
|
2858 | { |
|
|
2859 | if (CvISXSUB (cb)) |
|
|
2860 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
2861 | |
|
|
2862 | if (!CvROOT (cb)) |
|
|
2863 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
2864 | } |
|
|
2865 | } |
1832 | |
2866 | |
1833 | Newz (0, coro, 1, struct coro); |
2867 | Newz (0, coro, 1, struct coro); |
1834 | coro->args = newAV (); |
2868 | coro->args = newAV (); |
1835 | coro->flags = CF_NEW; |
2869 | coro->flags = CF_NEW; |
1836 | |
2870 | |
… | |
… | |
1841 | coro->hv = hv = newHV (); |
2875 | coro->hv = hv = newHV (); |
1842 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2876 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
1843 | mg->mg_flags |= MGf_DUP; |
2877 | mg->mg_flags |= MGf_DUP; |
1844 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2878 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1845 | |
2879 | |
|
|
2880 | if (items > 1) |
|
|
2881 | { |
1846 | av_extend (coro->args, items - 1); |
2882 | av_extend (coro->args, items - 1 + ix - 1); |
|
|
2883 | |
|
|
2884 | if (ix) |
|
|
2885 | { |
|
|
2886 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
2887 | cb = cv_coro_run; |
|
|
2888 | } |
|
|
2889 | |
|
|
2890 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
2891 | |
1847 | for (i = 1; i < items; i++) |
2892 | for (i = 2; i < items; i++) |
1848 | av_push (coro->args, newSVsv (ST (i))); |
2893 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2894 | } |
1849 | } |
2895 | } |
1850 | OUTPUT: |
2896 | OUTPUT: |
1851 | RETVAL |
2897 | RETVAL |
1852 | |
2898 | |
1853 | # these not obviously related functions are all rolled into the same xs |
|
|
1854 | # function to increase chances that they all will call transfer with the same |
|
|
1855 | # stack offset |
|
|
1856 | void |
2899 | void |
1857 | _set_stacklevel (...) |
2900 | transfer (...) |
1858 | ALIAS: |
2901 | PROTOTYPE: $$ |
1859 | Coro::State::transfer = 1 |
2902 | CODE: |
1860 | Coro::schedule = 2 |
2903 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1861 | Coro::cede = 3 |
|
|
1862 | Coro::cede_notself = 4 |
|
|
1863 | CODE: |
|
|
1864 | { |
|
|
1865 | struct transfer_args ta; |
|
|
1866 | |
|
|
1867 | PUTBACK; |
|
|
1868 | switch (ix) |
|
|
1869 | { |
|
|
1870 | case 0: |
|
|
1871 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1872 | ta.next = 0; |
|
|
1873 | break; |
|
|
1874 | |
|
|
1875 | case 1: |
|
|
1876 | if (items != 2) |
|
|
1877 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items); |
|
|
1878 | |
|
|
1879 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1880 | break; |
|
|
1881 | |
|
|
1882 | case 2: |
|
|
1883 | prepare_schedule (aTHX_ &ta); |
|
|
1884 | break; |
|
|
1885 | |
|
|
1886 | case 3: |
|
|
1887 | prepare_cede (aTHX_ &ta); |
|
|
1888 | break; |
|
|
1889 | |
|
|
1890 | case 4: |
|
|
1891 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1892 | XSRETURN_EMPTY; |
|
|
1893 | |
|
|
1894 | break; |
|
|
1895 | } |
|
|
1896 | SPAGAIN; |
|
|
1897 | |
|
|
1898 | BARRIER; |
|
|
1899 | PUTBACK; |
|
|
1900 | TRANSFER (ta, 0); |
|
|
1901 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1902 | /* be extra careful not to ever do anything after TRANSFER */ |
|
|
1903 | } |
|
|
1904 | |
2904 | |
1905 | bool |
2905 | bool |
1906 | _destroy (SV *coro_sv) |
2906 | _destroy (SV *coro_sv) |
1907 | CODE: |
2907 | CODE: |
1908 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2908 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
1913 | _exit (int code) |
2913 | _exit (int code) |
1914 | PROTOTYPE: $ |
2914 | PROTOTYPE: $ |
1915 | CODE: |
2915 | CODE: |
1916 | _exit (code); |
2916 | _exit (code); |
1917 | |
2917 | |
|
|
2918 | SV * |
|
|
2919 | clone (Coro::State coro) |
|
|
2920 | CODE: |
|
|
2921 | { |
|
|
2922 | #if CORO_CLONE |
|
|
2923 | struct coro *ncoro = coro_clone (coro); |
|
|
2924 | MAGIC *mg; |
|
|
2925 | /* TODO: too much duplication */ |
|
|
2926 | ncoro->hv = newHV (); |
|
|
2927 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
2928 | mg->mg_flags |= MGf_DUP; |
|
|
2929 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
2930 | #else |
|
|
2931 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
2932 | #endif |
|
|
2933 | } |
|
|
2934 | OUTPUT: |
|
|
2935 | RETVAL |
|
|
2936 | |
1918 | int |
2937 | int |
1919 | cctx_stacksize (int new_stacksize = 0) |
2938 | cctx_stacksize (int new_stacksize = 0) |
|
|
2939 | PROTOTYPE: ;$ |
1920 | CODE: |
2940 | CODE: |
1921 | RETVAL = cctx_stacksize; |
2941 | RETVAL = cctx_stacksize; |
1922 | if (new_stacksize) |
2942 | if (new_stacksize) |
1923 | { |
2943 | { |
1924 | cctx_stacksize = new_stacksize; |
2944 | cctx_stacksize = new_stacksize; |
… | |
… | |
1927 | OUTPUT: |
2947 | OUTPUT: |
1928 | RETVAL |
2948 | RETVAL |
1929 | |
2949 | |
1930 | int |
2950 | int |
1931 | cctx_max_idle (int max_idle = 0) |
2951 | cctx_max_idle (int max_idle = 0) |
|
|
2952 | PROTOTYPE: ;$ |
1932 | CODE: |
2953 | CODE: |
1933 | RETVAL = cctx_max_idle; |
2954 | RETVAL = cctx_max_idle; |
1934 | if (max_idle > 1) |
2955 | if (max_idle > 1) |
1935 | cctx_max_idle = max_idle; |
2956 | cctx_max_idle = max_idle; |
1936 | OUTPUT: |
2957 | OUTPUT: |
1937 | RETVAL |
2958 | RETVAL |
1938 | |
2959 | |
1939 | int |
2960 | int |
1940 | cctx_count () |
2961 | cctx_count () |
|
|
2962 | PROTOTYPE: |
1941 | CODE: |
2963 | CODE: |
1942 | RETVAL = cctx_count; |
2964 | RETVAL = cctx_count; |
1943 | OUTPUT: |
2965 | OUTPUT: |
1944 | RETVAL |
2966 | RETVAL |
1945 | |
2967 | |
1946 | int |
2968 | int |
1947 | cctx_idle () |
2969 | cctx_idle () |
|
|
2970 | PROTOTYPE: |
1948 | CODE: |
2971 | CODE: |
1949 | RETVAL = cctx_idle; |
2972 | RETVAL = cctx_idle; |
1950 | OUTPUT: |
2973 | OUTPUT: |
1951 | RETVAL |
2974 | RETVAL |
1952 | |
2975 | |
1953 | void |
2976 | void |
1954 | list () |
2977 | list () |
|
|
2978 | PROTOTYPE: |
1955 | PPCODE: |
2979 | PPCODE: |
1956 | { |
2980 | { |
1957 | struct coro *coro; |
2981 | struct coro *coro; |
1958 | for (coro = coro_first; coro; coro = coro->next) |
2982 | for (coro = coro_first; coro; coro = coro->next) |
1959 | if (coro->hv) |
2983 | if (coro->hv) |
… | |
… | |
2018 | RETVAL = boolSV (coro->flags & ix); |
3042 | RETVAL = boolSV (coro->flags & ix); |
2019 | OUTPUT: |
3043 | OUTPUT: |
2020 | RETVAL |
3044 | RETVAL |
2021 | |
3045 | |
2022 | void |
3046 | void |
|
|
3047 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
3048 | PROTOTYPE: $;$ |
|
|
3049 | CODE: |
|
|
3050 | { |
|
|
3051 | struct coro *current = SvSTATE_current; |
|
|
3052 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
|
|
3053 | SvREFCNT_dec (*throwp); |
|
|
3054 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
3055 | } |
|
|
3056 | |
|
|
3057 | void |
2023 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3058 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3059 | PROTOTYPE: $;$ |
|
|
3060 | C_ARGS: aTHX_ coro, flags |
2024 | |
3061 | |
2025 | SV * |
3062 | SV * |
2026 | has_cctx (Coro::State coro) |
3063 | has_cctx (Coro::State coro) |
2027 | PROTOTYPE: $ |
3064 | PROTOTYPE: $ |
2028 | CODE: |
3065 | CODE: |
2029 | RETVAL = boolSV (!!coro->cctx); |
3066 | /* maybe manage the running flag differently */ |
|
|
3067 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
2030 | OUTPUT: |
3068 | OUTPUT: |
2031 | RETVAL |
3069 | RETVAL |
2032 | |
3070 | |
2033 | int |
3071 | int |
2034 | is_traced (Coro::State coro) |
3072 | is_traced (Coro::State coro) |
… | |
… | |
2052 | OUTPUT: |
3090 | OUTPUT: |
2053 | RETVAL |
3091 | RETVAL |
2054 | |
3092 | |
2055 | void |
3093 | void |
2056 | force_cctx () |
3094 | force_cctx () |
|
|
3095 | PROTOTYPE: |
2057 | CODE: |
3096 | CODE: |
2058 | struct coro *coro = SvSTATE (coro_current); |
|
|
2059 | coro->cctx->idle_sp = 0; |
3097 | cctx_current->idle_sp = 0; |
2060 | |
3098 | |
2061 | void |
3099 | void |
2062 | swap_defsv (Coro::State self) |
3100 | swap_defsv (Coro::State self) |
2063 | PROTOTYPE: $ |
3101 | PROTOTYPE: $ |
2064 | ALIAS: |
3102 | ALIAS: |
2065 | swap_defav = 1 |
3103 | swap_defav = 1 |
2066 | CODE: |
3104 | CODE: |
2067 | if (!self->slot) |
3105 | if (!self->slot) |
2068 | croak ("cannot swap state with coroutine that has no saved state"); |
3106 | croak ("cannot swap state with coroutine that has no saved state,"); |
2069 | else |
3107 | else |
2070 | { |
3108 | { |
2071 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
3109 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2072 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
3110 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2073 | |
3111 | |
2074 | SV *tmp = *src; *src = *dst; *dst = tmp; |
3112 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2075 | } |
3113 | } |
2076 | |
3114 | |
|
|
3115 | |
2077 | MODULE = Coro::State PACKAGE = Coro |
3116 | MODULE = Coro::State PACKAGE = Coro |
2078 | |
3117 | |
2079 | BOOT: |
3118 | BOOT: |
2080 | { |
3119 | { |
2081 | int i; |
3120 | int i; |
2082 | |
3121 | |
2083 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2084 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3122 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2085 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3123 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2086 | |
3124 | cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); |
|
|
3125 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
2087 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
3126 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
2088 | SvREADONLY_on (coro_current); |
3127 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3128 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3129 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3130 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
|
|
3131 | |
|
|
3132 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
3133 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3134 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3135 | cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); |
2089 | |
3136 | |
2090 | coro_stash = gv_stashpv ("Coro", TRUE); |
3137 | coro_stash = gv_stashpv ("Coro", TRUE); |
2091 | |
3138 | |
2092 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3139 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2093 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3140 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
… | |
… | |
2098 | |
3145 | |
2099 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
3146 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2100 | coro_ready[i] = newAV (); |
3147 | coro_ready[i] = newAV (); |
2101 | |
3148 | |
2102 | { |
3149 | { |
2103 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
3150 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2104 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
|
|
2105 | |
3151 | |
2106 | coroapi.schedule = api_schedule; |
3152 | coroapi.schedule = api_schedule; |
|
|
3153 | coroapi.schedule_to = api_schedule_to; |
2107 | coroapi.cede = api_cede; |
3154 | coroapi.cede = api_cede; |
2108 | coroapi.cede_notself = api_cede_notself; |
3155 | coroapi.cede_notself = api_cede_notself; |
2109 | coroapi.ready = api_ready; |
3156 | coroapi.ready = api_ready; |
2110 | coroapi.is_ready = api_is_ready; |
3157 | coroapi.is_ready = api_is_ready; |
2111 | coroapi.nready = &coro_nready; |
3158 | coroapi.nready = coro_nready; |
2112 | coroapi.current = coro_current; |
3159 | coroapi.current = coro_current; |
2113 | |
3160 | |
2114 | GCoroAPI = &coroapi; |
3161 | /*GCoroAPI = &coroapi;*/ |
2115 | sv_setiv (sv, (IV)&coroapi); |
3162 | sv_setiv (sv, (IV)&coroapi); |
2116 | SvREADONLY_on (sv); |
3163 | SvREADONLY_on (sv); |
2117 | } |
3164 | } |
2118 | } |
3165 | } |
|
|
3166 | |
|
|
3167 | void |
|
|
3168 | terminate (...) |
|
|
3169 | CODE: |
|
|
3170 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3171 | |
|
|
3172 | void |
|
|
3173 | schedule (...) |
|
|
3174 | CODE: |
|
|
3175 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3176 | |
|
|
3177 | void |
|
|
3178 | schedule_to (...) |
|
|
3179 | CODE: |
|
|
3180 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3181 | |
|
|
3182 | void |
|
|
3183 | cede_to (...) |
|
|
3184 | CODE: |
|
|
3185 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
3186 | |
|
|
3187 | void |
|
|
3188 | cede (...) |
|
|
3189 | CODE: |
|
|
3190 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
3191 | |
|
|
3192 | void |
|
|
3193 | cede_notself (...) |
|
|
3194 | CODE: |
|
|
3195 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
|
|
3196 | |
|
|
3197 | void |
|
|
3198 | _cancel (Coro::State self) |
|
|
3199 | CODE: |
|
|
3200 | coro_state_destroy (aTHX_ self); |
|
|
3201 | coro_call_on_destroy (aTHX_ self); |
2119 | |
3202 | |
2120 | void |
3203 | void |
2121 | _set_current (SV *current) |
3204 | _set_current (SV *current) |
2122 | PROTOTYPE: $ |
3205 | PROTOTYPE: $ |
2123 | CODE: |
3206 | CODE: |
… | |
… | |
2126 | |
3209 | |
2127 | void |
3210 | void |
2128 | _set_readyhook (SV *hook) |
3211 | _set_readyhook (SV *hook) |
2129 | PROTOTYPE: $ |
3212 | PROTOTYPE: $ |
2130 | CODE: |
3213 | CODE: |
2131 | LOCK; |
|
|
2132 | SvREFCNT_dec (coro_readyhook); |
3214 | SvREFCNT_dec (coro_readyhook); |
2133 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
3215 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2134 | UNLOCK; |
|
|
2135 | |
3216 | |
2136 | int |
3217 | int |
2137 | prio (Coro::State coro, int newprio = 0) |
3218 | prio (Coro::State coro, int newprio = 0) |
|
|
3219 | PROTOTYPE: $;$ |
2138 | ALIAS: |
3220 | ALIAS: |
2139 | nice = 1 |
3221 | nice = 1 |
2140 | CODE: |
3222 | CODE: |
2141 | { |
3223 | { |
2142 | RETVAL = coro->prio; |
3224 | RETVAL = coro->prio; |
… | |
… | |
2157 | |
3239 | |
2158 | SV * |
3240 | SV * |
2159 | ready (SV *self) |
3241 | ready (SV *self) |
2160 | PROTOTYPE: $ |
3242 | PROTOTYPE: $ |
2161 | CODE: |
3243 | CODE: |
2162 | RETVAL = boolSV (api_ready (self)); |
3244 | RETVAL = boolSV (api_ready (aTHX_ self)); |
2163 | OUTPUT: |
3245 | OUTPUT: |
2164 | RETVAL |
3246 | RETVAL |
2165 | |
3247 | |
2166 | int |
3248 | int |
2167 | nready (...) |
3249 | nready (...) |
… | |
… | |
2170 | RETVAL = coro_nready; |
3252 | RETVAL = coro_nready; |
2171 | OUTPUT: |
3253 | OUTPUT: |
2172 | RETVAL |
3254 | RETVAL |
2173 | |
3255 | |
2174 | void |
3256 | void |
2175 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
3257 | _pool_handler (...) |
2176 | PROTOTYPE: $;$ |
3258 | CODE: |
2177 | CODE: |
3259 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
2178 | SvREFCNT_dec (self->throw); |
|
|
2179 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2180 | |
3260 | |
2181 | # for async_pool speedup |
|
|
2182 | void |
3261 | void |
2183 | _pool_1 (SV *cb) |
3262 | async_pool (SV *cv, ...) |
|
|
3263 | PROTOTYPE: &@ |
|
|
3264 | PPCODE: |
|
|
3265 | { |
|
|
3266 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3267 | AV *av = newAV (); |
|
|
3268 | SV *cb = ST (0); |
|
|
3269 | int i; |
|
|
3270 | |
|
|
3271 | av_extend (av, items - 2); |
|
|
3272 | for (i = 1; i < items; ++i) |
|
|
3273 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
3274 | |
|
|
3275 | if ((SV *)hv == &PL_sv_undef) |
|
|
3276 | { |
|
|
3277 | PUSHMARK (SP); |
|
|
3278 | EXTEND (SP, 2); |
|
|
3279 | PUSHs (sv_Coro); |
|
|
3280 | PUSHs ((SV *)cv_pool_handler); |
|
|
3281 | PUTBACK; |
|
|
3282 | call_sv ((SV *)cv_coro_state_new, G_SCALAR); |
|
|
3283 | SPAGAIN; |
|
|
3284 | |
|
|
3285 | hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); |
|
|
3286 | } |
|
|
3287 | |
|
|
3288 | { |
|
|
3289 | struct coro *coro = SvSTATE_hv (hv); |
|
|
3290 | |
|
|
3291 | assert (!coro->invoke_cb); |
|
|
3292 | assert (!coro->invoke_av); |
|
|
3293 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3294 | coro->invoke_av = av; |
|
|
3295 | } |
|
|
3296 | |
|
|
3297 | api_ready (aTHX_ (SV *)hv); |
|
|
3298 | |
|
|
3299 | if (GIMME_V != G_VOID) |
|
|
3300 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3301 | else |
|
|
3302 | SvREFCNT_dec (hv); |
|
|
3303 | } |
|
|
3304 | |
|
|
3305 | SV * |
|
|
3306 | rouse_cb () |
|
|
3307 | PROTOTYPE: |
2184 | CODE: |
3308 | CODE: |
2185 | { |
3309 | RETVAL = coro_new_rouse_cb (aTHX); |
2186 | struct coro *coro = SvSTATE (coro_current); |
|
|
2187 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2188 | AV *defav = GvAV (PL_defgv); |
|
|
2189 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2190 | AV *invoke_av; |
|
|
2191 | int i, len; |
|
|
2192 | |
|
|
2193 | if (!invoke) |
|
|
2194 | { |
|
|
2195 | SV *old = PL_diehook; |
|
|
2196 | PL_diehook = 0; |
|
|
2197 | SvREFCNT_dec (old); |
|
|
2198 | croak ("\3async_pool terminate\2\n"); |
|
|
2199 | } |
|
|
2200 | |
|
|
2201 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2202 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2203 | |
|
|
2204 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2205 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2206 | |
|
|
2207 | invoke_av = (AV *)SvRV (invoke); |
|
|
2208 | len = av_len (invoke_av); |
|
|
2209 | |
|
|
2210 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2211 | |
|
|
2212 | if (len > 0) |
|
|
2213 | { |
|
|
2214 | av_fill (defav, len - 1); |
|
|
2215 | for (i = 0; i < len; ++i) |
|
|
2216 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
|
|
2217 | } |
|
|
2218 | |
|
|
2219 | SvREFCNT_dec (invoke); |
|
|
2220 | } |
|
|
2221 | |
|
|
2222 | void |
|
|
2223 | _pool_2 (SV *cb) |
|
|
2224 | CODE: |
|
|
2225 | { |
|
|
2226 | struct coro *coro = SvSTATE (coro_current); |
|
|
2227 | |
|
|
2228 | sv_setsv (cb, &PL_sv_undef); |
|
|
2229 | |
|
|
2230 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2231 | coro->saved_deffh = 0; |
|
|
2232 | |
|
|
2233 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2234 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2235 | { |
|
|
2236 | SV *old = PL_diehook; |
|
|
2237 | PL_diehook = 0; |
|
|
2238 | SvREFCNT_dec (old); |
|
|
2239 | croak ("\3async_pool terminate\2\n"); |
|
|
2240 | } |
|
|
2241 | |
|
|
2242 | av_clear (GvAV (PL_defgv)); |
|
|
2243 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2244 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2245 | |
|
|
2246 | coro->prio = 0; |
|
|
2247 | |
|
|
2248 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2249 | api_trace (coro_current, 0); |
|
|
2250 | |
|
|
2251 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2252 | } |
|
|
2253 | |
|
|
2254 | #if 0 |
|
|
2255 | |
|
|
2256 | void |
|
|
2257 | _generator_call (...) |
|
|
2258 | PROTOTYPE: @ |
|
|
2259 | PPCODE: |
|
|
2260 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2261 | xxxx |
|
|
2262 | abort (); |
|
|
2263 | |
|
|
2264 | SV * |
|
|
2265 | gensub (SV *sub, ...) |
|
|
2266 | PROTOTYPE: &;@ |
|
|
2267 | CODE: |
|
|
2268 | { |
|
|
2269 | struct coro *coro; |
|
|
2270 | MAGIC *mg; |
|
|
2271 | CV *xcv; |
|
|
2272 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2273 | int i; |
|
|
2274 | |
|
|
2275 | CvGV (ncv) = CvGV (cv); |
|
|
2276 | CvFILE (ncv) = CvFILE (cv); |
|
|
2277 | |
|
|
2278 | Newz (0, coro, 1, struct coro); |
|
|
2279 | coro->args = newAV (); |
|
|
2280 | coro->flags = CF_NEW; |
|
|
2281 | |
|
|
2282 | av_extend (coro->args, items - 1); |
|
|
2283 | for (i = 1; i < items; i++) |
|
|
2284 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2285 | |
|
|
2286 | CvISXSUB_on (ncv); |
|
|
2287 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2288 | |
|
|
2289 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2290 | |
|
|
2291 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2292 | CvANON_on (ncv); |
|
|
2293 | |
|
|
2294 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2295 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2296 | } |
|
|
2297 | OUTPUT: |
3310 | OUTPUT: |
2298 | RETVAL |
3311 | RETVAL |
2299 | |
3312 | |
2300 | #endif |
|
|
2301 | |
|
|
2302 | |
|
|
2303 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2304 | |
|
|
2305 | void |
3313 | void |
2306 | _get_state (SV *self) |
3314 | rouse_wait (...) |
|
|
3315 | PROTOTYPE: ;$ |
2307 | PPCODE: |
3316 | PPCODE: |
2308 | { |
3317 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
2309 | AV *defav = GvAV (PL_defgv); |
|
|
2310 | AV *av = newAV (); |
|
|
2311 | int i; |
|
|
2312 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2313 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2314 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2315 | SvPOK_only (data_sv); |
|
|
2316 | |
3318 | |
2317 | data->errorno = errno; |
|
|
2318 | data->laststype = PL_laststype; |
|
|
2319 | data->laststatval = PL_laststatval; |
|
|
2320 | data->statcache = PL_statcache; |
|
|
2321 | |
3319 | |
2322 | av_extend (av, AvFILLp (defav) + 1 + 1); |
3320 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2323 | |
3321 | |
2324 | for (i = 0; i <= AvFILLp (defav); ++i) |
3322 | BOOT: |
2325 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
3323 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2326 | |
3324 | |
2327 | av_push (av, data_sv); |
|
|
2328 | |
3325 | |
2329 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
3326 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2330 | |
3327 | |
2331 | api_ready (self); |
3328 | SV * |
2332 | } |
3329 | new (SV *klass, SV *count = 0) |
|
|
3330 | CODE: |
|
|
3331 | RETVAL = sv_bless ( |
|
|
3332 | coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), |
|
|
3333 | GvSTASH (CvGV (cv)) |
|
|
3334 | ); |
|
|
3335 | OUTPUT: |
|
|
3336 | RETVAL |
|
|
3337 | |
|
|
3338 | # helper for Coro::Channel |
|
|
3339 | SV * |
|
|
3340 | _alloc (int count) |
|
|
3341 | CODE: |
|
|
3342 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
3343 | OUTPUT: |
|
|
3344 | RETVAL |
|
|
3345 | |
|
|
3346 | SV * |
|
|
3347 | count (SV *self) |
|
|
3348 | CODE: |
|
|
3349 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
3350 | OUTPUT: |
|
|
3351 | RETVAL |
2333 | |
3352 | |
2334 | void |
3353 | void |
2335 | _set_state (SV *state) |
3354 | up (SV *self, int adjust = 1) |
2336 | PROTOTYPE: $ |
3355 | ALIAS: |
|
|
3356 | adjust = 1 |
|
|
3357 | CODE: |
|
|
3358 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
3359 | |
|
|
3360 | void |
|
|
3361 | down (...) |
|
|
3362 | CODE: |
|
|
3363 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3364 | |
|
|
3365 | void |
|
|
3366 | wait (...) |
|
|
3367 | CODE: |
|
|
3368 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
3369 | |
|
|
3370 | void |
|
|
3371 | try (SV *self) |
|
|
3372 | PPCODE: |
|
|
3373 | { |
|
|
3374 | AV *av = (AV *)SvRV (self); |
|
|
3375 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3376 | IV count = SvIVX (count_sv); |
|
|
3377 | |
|
|
3378 | if (count > 0) |
|
|
3379 | { |
|
|
3380 | --count; |
|
|
3381 | SvIVX (count_sv) = count; |
|
|
3382 | XSRETURN_YES; |
|
|
3383 | } |
|
|
3384 | else |
|
|
3385 | XSRETURN_NO; |
|
|
3386 | } |
|
|
3387 | |
|
|
3388 | void |
|
|
3389 | waiters (SV *self) |
|
|
3390 | PPCODE: |
|
|
3391 | { |
|
|
3392 | AV *av = (AV *)SvRV (self); |
|
|
3393 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
3394 | |
|
|
3395 | if (GIMME_V == G_SCALAR) |
|
|
3396 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
3397 | else |
|
|
3398 | { |
|
|
3399 | int i; |
|
|
3400 | EXTEND (SP, wcount); |
|
|
3401 | for (i = 1; i <= wcount; ++i) |
|
|
3402 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
3403 | } |
|
|
3404 | } |
|
|
3405 | |
|
|
3406 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3407 | |
|
|
3408 | SV * |
|
|
3409 | new (SV *klass) |
2337 | PPCODE: |
3410 | CODE: |
|
|
3411 | RETVAL = sv_bless ( |
|
|
3412 | coro_waitarray_new (aTHX_ 0), |
|
|
3413 | GvSTASH (CvGV (cv)) |
|
|
3414 | ); |
|
|
3415 | OUTPUT: |
|
|
3416 | RETVAL |
|
|
3417 | |
|
|
3418 | void |
|
|
3419 | wait (...) |
|
|
3420 | CODE: |
|
|
3421 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3422 | |
|
|
3423 | void |
|
|
3424 | broadcast (SV *self) |
|
|
3425 | CODE: |
2338 | { |
3426 | { |
2339 | AV *av = (AV *)SvRV (state); |
3427 | AV *av = (AV *)SvRV (self); |
2340 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
3428 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
2341 | int i; |
3429 | } |
2342 | |
3430 | |
2343 | errno = data->errorno; |
3431 | void |
2344 | PL_laststype = data->laststype; |
3432 | send (SV *self) |
2345 | PL_laststatval = data->laststatval; |
3433 | CODE: |
2346 | PL_statcache = data->statcache; |
3434 | { |
|
|
3435 | AV *av = (AV *)SvRV (self); |
2347 | |
3436 | |
2348 | EXTEND (SP, AvFILLp (av)); |
3437 | if (AvFILLp (av)) |
2349 | for (i = 0; i < AvFILLp (av); ++i) |
3438 | coro_signal_wake (aTHX_ av, 1); |
2350 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
3439 | else |
|
|
3440 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
2351 | } |
3441 | } |
|
|
3442 | |
|
|
3443 | IV |
|
|
3444 | awaited (SV *self) |
|
|
3445 | CODE: |
|
|
3446 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3447 | OUTPUT: |
|
|
3448 | RETVAL |
2352 | |
3449 | |
2353 | |
3450 | |
2354 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
3451 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2355 | |
3452 | |
2356 | BOOT: |
3453 | BOOT: |
2357 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
3454 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2358 | |
3455 | |
2359 | SV * |
3456 | void |
2360 | _schedule (...) |
3457 | _schedule (...) |
2361 | PROTOTYPE: @ |
|
|
2362 | CODE: |
3458 | CODE: |
2363 | { |
3459 | { |
2364 | static int incede; |
3460 | static int incede; |
2365 | |
3461 | |
2366 | api_cede_notself (); |
3462 | api_cede_notself (aTHX); |
2367 | |
3463 | |
2368 | ++incede; |
3464 | ++incede; |
2369 | while (coro_nready >= incede && api_cede ()) |
3465 | while (coro_nready >= incede && api_cede (aTHX)) |
2370 | ; |
3466 | ; |
2371 | |
3467 | |
2372 | sv_setsv (sv_activity, &PL_sv_undef); |
3468 | sv_setsv (sv_activity, &PL_sv_undef); |
2373 | if (coro_nready >= incede) |
3469 | if (coro_nready >= incede) |
2374 | { |
3470 | { |
2375 | PUSHMARK (SP); |
3471 | PUSHMARK (SP); |
2376 | PUTBACK; |
3472 | PUTBACK; |
2377 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
3473 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2378 | SPAGAIN; |
|
|
2379 | } |
3474 | } |
2380 | |
3475 | |
2381 | --incede; |
3476 | --incede; |
2382 | } |
3477 | } |
2383 | |
3478 | |
2384 | |
3479 | |
2385 | MODULE = Coro::State PACKAGE = PerlIO::cede |
3480 | MODULE = Coro::State PACKAGE = Coro::AIO |
2386 | |
3481 | |
2387 | BOOT: |
3482 | void |
2388 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
3483 | _register (char *target, char *proto, SV *req) |
|
|
3484 | CODE: |
|
|
3485 | { |
|
|
3486 | CV *req_cv = coro_sv_2cv (aTHX_ req); |
|
|
3487 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3488 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3489 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3490 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3491 | } |
|
|
3492 | |