|
|
1 | /* this works around a bug in mingw32 providing a non-working setjmp */ |
|
|
2 | #define USE_NO_MINGW_SETJMP_TWO_ARGS |
|
|
3 | |
|
|
4 | #define NDEBUG 1 |
|
|
5 | |
1 | #include "libcoro/coro.c" |
6 | #include "libcoro/coro.c" |
2 | |
7 | |
3 | #define PERL_NO_GET_CONTEXT |
8 | #define PERL_NO_GET_CONTEXT |
4 | #define PERL_EXT |
9 | #define PERL_EXT |
5 | |
10 | |
6 | #include "EXTERN.h" |
11 | #include "EXTERN.h" |
7 | #include "perl.h" |
12 | #include "perl.h" |
8 | #include "XSUB.h" |
13 | #include "XSUB.h" |
9 | #include "perliol.h" |
14 | #include "perliol.h" |
10 | |
15 | |
11 | #include "patchlevel.h" |
16 | #include "schmorp.h" |
12 | |
17 | |
|
|
18 | #define ECB_NO_THREADS 1 |
|
|
19 | #include "ecb.h" |
|
|
20 | |
|
|
21 | #include <stddef.h> |
13 | #include <stdio.h> |
22 | #include <stdio.h> |
14 | #include <errno.h> |
23 | #include <errno.h> |
15 | #include <assert.h> |
24 | #include <assert.h> |
16 | |
25 | |
17 | #ifdef WIN32 |
26 | #ifndef SVs_PADSTALE |
|
|
27 | # define SVs_PADSTALE 0 |
|
|
28 | #endif |
|
|
29 | |
|
|
30 | #if defined(_WIN32) |
|
|
31 | # undef HAS_GETTIMEOFDAY |
18 | # undef setjmp |
32 | # undef setjmp |
19 | # undef longjmp |
33 | # undef longjmp |
20 | # undef _exit |
34 | # undef _exit |
21 | # define setjmp _setjmp // deep magic, don't ask |
35 | # define setjmp _setjmp /* deep magic */ |
22 | #else |
36 | #else |
23 | # include <inttypes.h> /* most portable stdint.h */ |
37 | # include <inttypes.h> /* most portable stdint.h */ |
24 | #endif |
38 | #endif |
25 | |
39 | |
26 | #ifdef HAVE_MMAP |
40 | #if HAVE_MMAP |
27 | # include <unistd.h> |
41 | # include <unistd.h> |
28 | # include <sys/mman.h> |
42 | # include <sys/mman.h> |
29 | # ifndef MAP_ANONYMOUS |
43 | # ifndef MAP_ANONYMOUS |
30 | # ifdef MAP_ANON |
44 | # ifdef MAP_ANON |
31 | # define MAP_ANONYMOUS MAP_ANON |
45 | # define MAP_ANONYMOUS MAP_ANON |
… | |
… | |
51 | #endif |
65 | #endif |
52 | |
66 | |
53 | /* the maximum number of idle cctx that will be pooled */ |
67 | /* the maximum number of idle cctx that will be pooled */ |
54 | static int cctx_max_idle = 4; |
68 | static int cctx_max_idle = 4; |
55 | |
69 | |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
70 | #if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0) |
57 | (PERL_REVISION > (a) \ |
71 | # define HAS_SCOPESTACK_NAME 1 |
58 | || (PERL_REVISION == (a) \ |
|
|
59 | && (PERL_VERSION > (b) \ |
|
|
60 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
|
|
61 | |
|
|
62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
|
|
63 | # ifndef PL_ppaddr |
|
|
64 | # define PL_ppaddr ppaddr |
|
|
65 | # endif |
|
|
66 | # ifndef call_sv |
|
|
67 | # define call_sv perl_call_sv |
|
|
68 | # endif |
|
|
69 | # ifndef get_sv |
|
|
70 | # define get_sv perl_get_sv |
|
|
71 | # endif |
|
|
72 | # ifndef get_cv |
|
|
73 | # define get_cv perl_get_cv |
|
|
74 | # endif |
|
|
75 | # ifndef IS_PADGV |
|
|
76 | # define IS_PADGV(v) 0 |
|
|
77 | # endif |
|
|
78 | # ifndef IS_PADCONST |
|
|
79 | # define IS_PADCONST(v) 0 |
|
|
80 | # endif |
|
|
81 | #endif |
|
|
82 | |
|
|
83 | /* 5.11 */ |
|
|
84 | #ifndef CxHASARGS |
|
|
85 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
|
|
86 | #endif |
|
|
87 | |
|
|
88 | /* 5.10.0 */ |
|
|
89 | #ifndef SvREFCNT_inc_NN |
|
|
90 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
|
|
91 | #endif |
|
|
92 | |
|
|
93 | /* 5.8.8 */ |
|
|
94 | #ifndef GV_NOTQUAL |
|
|
95 | # define GV_NOTQUAL 0 |
|
|
96 | #endif |
|
|
97 | #ifndef newSV |
|
|
98 | # define newSV(l) NEWSV(0,l) |
|
|
99 | #endif |
|
|
100 | |
|
|
101 | /* 5.8.7 */ |
|
|
102 | #ifndef SvRV_set |
|
|
103 | # define SvRV_set(s,v) SvRV(s) = (v) |
|
|
104 | #endif |
72 | #endif |
105 | |
73 | |
106 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
74 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
107 | # undef CORO_STACKGUARD |
75 | # undef CORO_STACKGUARD |
108 | #endif |
76 | #endif |
… | |
… | |
117 | #endif |
85 | #endif |
118 | |
86 | |
119 | /* The next macros try to return the current stack pointer, in an as |
87 | /* The next macros try to return the current stack pointer, in an as |
120 | * portable way as possible. */ |
88 | * portable way as possible. */ |
121 | #if __GNUC__ >= 4 |
89 | #if __GNUC__ >= 4 |
|
|
90 | # define dSTACKLEVEL int stacklevel_dummy |
122 | # define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
91 | # define STACKLEVEL __builtin_frame_address (0) |
123 | #else |
92 | #else |
124 | # define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
93 | # define dSTACKLEVEL volatile void *stacklevel |
|
|
94 | # define STACKLEVEL ((void *)&stacklevel) |
125 | #endif |
95 | #endif |
126 | |
96 | |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
97 | #define IN_DESTRUCT PL_dirty |
128 | |
|
|
129 | #if __GNUC__ >= 3 |
|
|
130 | # define attribute(x) __attribute__(x) |
|
|
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
132 | # define INLINE static inline |
|
|
133 | #else |
|
|
134 | # define attribute(x) |
|
|
135 | # define expect(expr,value) (expr) |
|
|
136 | # define INLINE static |
|
|
137 | #endif |
|
|
138 | |
|
|
139 | #define expect_false(expr) expect ((expr) != 0, 0) |
|
|
140 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
141 | |
|
|
142 | #define NOINLINE attribute ((noinline)) |
|
|
143 | |
98 | |
144 | #include "CoroAPI.h" |
99 | #include "CoroAPI.h" |
|
|
100 | #define GCoroAPI (&coroapi) /* very sneaky */ |
145 | |
101 | |
146 | #ifdef USE_ITHREADS |
102 | #ifdef USE_ITHREADS |
147 | # if CORO_PTHREAD |
103 | # if CORO_PTHREAD |
148 | static void *coro_thx; |
104 | static void *coro_thx; |
149 | # endif |
105 | # endif |
150 | #endif |
106 | #endif |
151 | |
107 | |
152 | /* helper storage struct for Coro::AIO */ |
108 | #ifdef __linux |
153 | struct io_state |
109 | # include <time.h> /* for timespec */ |
154 | { |
110 | # include <syscall.h> /* for SYS_* */ |
155 | AV *res; |
111 | # ifdef SYS_clock_gettime |
156 | int errorno; |
112 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
157 | I32 laststype; /* U16 in 5.10.0 */ |
113 | # define CORO_CLOCK_MONOTONIC 1 |
158 | int laststatval; |
114 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
159 | Stat_t statcache; |
115 | # endif |
160 | }; |
116 | #endif |
161 | |
117 | |
162 | static double (*nvtime)(); /* so why doesn't it take void? */ |
118 | static double (*nvtime)(); /* so why doesn't it take void? */ |
|
|
119 | static void (*u2time)(pTHX_ UV ret[2]); |
|
|
120 | |
|
|
121 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
122 | #define CVf_SLF 0x4000 |
|
|
123 | static OP *pp_slf (pTHX); |
|
|
124 | static void slf_destroy (pTHX_ struct coro *coro); |
163 | |
125 | |
164 | static U32 cctx_gen; |
126 | static U32 cctx_gen; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
127 | static size_t cctx_stacksize = CORO_STACKSIZE; |
166 | static struct CoroAPI coroapi; |
128 | static struct CoroAPI coroapi; |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
129 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
168 | static JMPENV *main_top_env; |
130 | static JMPENV *main_top_env; |
169 | static HV *coro_state_stash, *coro_stash; |
131 | static HV *coro_state_stash, *coro_stash; |
170 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
132 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
171 | |
133 | |
|
|
134 | static AV *av_destroy; /* destruction queue */ |
|
|
135 | static SV *sv_manager; /* the manager coro */ |
|
|
136 | static SV *sv_idle; /* $Coro::idle */ |
|
|
137 | |
172 | static GV *irsgv; /* $/ */ |
138 | static GV *irsgv; /* $/ */ |
173 | static GV *stdoutgv; /* *STDOUT */ |
139 | static GV *stdoutgv; /* *STDOUT */ |
174 | static SV *rv_diehook; |
140 | static SV *rv_diehook; |
175 | static SV *rv_warnhook; |
141 | static SV *rv_warnhook; |
176 | static HV *hv_sig; /* %SIG */ |
142 | static HV *hv_sig; /* %SIG */ |
177 | |
143 | |
178 | /* async_pool helper stuff */ |
144 | /* async_pool helper stuff */ |
179 | static SV *sv_pool_rss; |
145 | static SV *sv_pool_rss; |
180 | static SV *sv_pool_size; |
146 | static SV *sv_pool_size; |
|
|
147 | static SV *sv_async_pool_idle; /* description string */ |
181 | static AV *av_async_pool; |
148 | static AV *av_async_pool; /* idle pool */ |
|
|
149 | static SV *sv_Coro; /* class string */ |
|
|
150 | static CV *cv_pool_handler; |
182 | |
151 | |
183 | /* Coro::AnyEvent */ |
152 | /* Coro::AnyEvent */ |
184 | static SV *sv_activity; |
153 | static SV *sv_activity; |
185 | |
154 | |
|
|
155 | /* enable processtime/realtime profiling */ |
|
|
156 | static char enable_times; |
|
|
157 | typedef U32 coro_ts[2]; |
|
|
158 | static coro_ts time_real, time_cpu; |
|
|
159 | static char times_valid; |
|
|
160 | |
186 | static struct coro_cctx *cctx_first; |
161 | static struct coro_cctx *cctx_first; |
187 | static int cctx_count, cctx_idle; |
162 | static int cctx_count, cctx_idle; |
188 | |
163 | |
189 | enum { |
164 | enum |
|
|
165 | { |
190 | CC_MAPPED = 0x01, |
166 | CC_MAPPED = 0x01, |
191 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
167 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
192 | CC_TRACE = 0x04, |
168 | CC_TRACE = 0x04, |
193 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
169 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
194 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
170 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
… | |
… | |
204 | void *sptr; |
180 | void *sptr; |
205 | size_t ssize; |
181 | size_t ssize; |
206 | |
182 | |
207 | /* cpu state */ |
183 | /* cpu state */ |
208 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
184 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
|
|
185 | #ifndef NDEBUG |
209 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
186 | JMPENV *idle_te; /* same as idle_sp, but for top_env */ |
|
|
187 | #endif |
210 | JMPENV *top_env; |
188 | JMPENV *top_env; |
211 | coro_context cctx; |
189 | coro_context cctx; |
212 | |
190 | |
213 | U32 gen; |
191 | U32 gen; |
214 | #if CORO_USE_VALGRIND |
192 | #if CORO_USE_VALGRIND |
215 | int valgrind_id; |
193 | int valgrind_id; |
216 | #endif |
194 | #endif |
217 | unsigned char flags; |
195 | unsigned char flags; |
218 | } coro_cctx; |
196 | } coro_cctx; |
219 | |
197 | |
|
|
198 | static coro_cctx *cctx_current; /* the currently running cctx */ |
|
|
199 | |
|
|
200 | /*****************************************************************************/ |
|
|
201 | |
|
|
202 | static MGVTBL coro_state_vtbl; |
|
|
203 | |
220 | enum { |
204 | enum |
|
|
205 | { |
221 | CF_RUNNING = 0x0001, /* coroutine is running */ |
206 | CF_RUNNING = 0x0001, /* coroutine is running */ |
222 | CF_READY = 0x0002, /* coroutine is ready */ |
207 | CF_READY = 0x0002, /* coroutine is ready */ |
223 | CF_NEW = 0x0004, /* has never been switched to */ |
208 | CF_NEW = 0x0004, /* has never been switched to */ |
224 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
209 | CF_ZOMBIE = 0x0008, /* coroutine data has been freed */ |
|
|
210 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
|
|
211 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
225 | }; |
212 | }; |
226 | |
213 | |
227 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
214 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
228 | typedef struct |
215 | typedef struct |
229 | { |
216 | { |
230 | SV *defsv; |
|
|
231 | AV *defav; |
|
|
232 | SV *errsv; |
|
|
233 | SV *irsgv; |
|
|
234 | #define VAR(name,type) type name; |
217 | #define VARx(name,expr,type) type name; |
235 | # include "state.h" |
218 | #include "state.h" |
236 | #undef VAR |
|
|
237 | } perl_slots; |
219 | } perl_slots; |
238 | |
220 | |
|
|
221 | /* how many context stack entries do we need for perl_slots */ |
239 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
222 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
240 | |
223 | |
241 | /* this is a structure representing a perl-level coroutine */ |
224 | /* this is a structure representing a perl-level coroutine */ |
242 | struct coro { |
225 | struct coro |
|
|
226 | { |
243 | /* the C coroutine allocated to this perl coroutine, if any */ |
227 | /* the C coroutine allocated to this perl coroutine, if any */ |
244 | coro_cctx *cctx; |
228 | coro_cctx *cctx; |
|
|
229 | |
|
|
230 | /* ready queue */ |
|
|
231 | struct coro *next_ready; |
245 | |
232 | |
246 | /* state data */ |
233 | /* state data */ |
247 | struct CoroSLF slf_frame; /* saved slf frame */ |
234 | struct CoroSLF slf_frame; /* saved slf frame */ |
248 | AV *mainstack; |
235 | AV *mainstack; |
249 | perl_slots *slot; /* basically the saved sp */ |
236 | perl_slots *slot; /* basically the saved sp */ |
250 | |
237 | |
|
|
238 | CV *startcv; /* the CV to execute */ |
251 | AV *args; /* data associated with this coroutine (initial args) */ |
239 | AV *args; /* data associated with this coroutine (initial args) */ |
252 | int refcnt; /* coroutines are refcounted, yes */ |
|
|
253 | int flags; /* CF_ flags */ |
240 | int flags; /* CF_ flags */ |
254 | HV *hv; /* the perl hash associated with this coro, if any */ |
241 | HV *hv; /* the perl hash associated with this coro, if any */ |
255 | void (*on_destroy)(pTHX_ struct coro *coro); |
|
|
256 | |
242 | |
257 | /* statistics */ |
243 | /* statistics */ |
258 | int usecount; /* number of transfers to this coro */ |
244 | int usecount; /* number of transfers to this coro */ |
259 | |
245 | |
260 | /* coro process data */ |
246 | /* coro process data */ |
261 | int prio; |
247 | int prio; |
262 | SV *throw; /* exception to be thrown */ |
248 | SV *except; /* exception to be thrown */ |
|
|
249 | SV *rouse_cb; /* last rouse callback */ |
|
|
250 | AV *on_destroy; /* callbacks or coros to notify on destroy */ |
|
|
251 | AV *status; /* the exit status list */ |
263 | |
252 | |
264 | /* async_pool */ |
253 | /* async_pool */ |
265 | SV *saved_deffh; |
254 | SV *saved_deffh; |
|
|
255 | SV *invoke_cb; |
|
|
256 | AV *invoke_av; |
|
|
257 | |
|
|
258 | /* on_enter/on_leave */ |
|
|
259 | AV *on_enter; |
|
|
260 | AV *on_leave; |
|
|
261 | |
|
|
262 | /* swap_sv */ |
|
|
263 | AV *swap_sv; |
|
|
264 | |
|
|
265 | /* times */ |
|
|
266 | coro_ts t_cpu, t_real; |
266 | |
267 | |
267 | /* linked list */ |
268 | /* linked list */ |
268 | struct coro *next, *prev; |
269 | struct coro *next, *prev; |
269 | }; |
270 | }; |
270 | |
271 | |
271 | typedef struct coro *Coro__State; |
272 | typedef struct coro *Coro__State; |
272 | typedef struct coro *Coro__State_or_hashref; |
273 | typedef struct coro *Coro__State_or_hashref; |
273 | |
274 | |
274 | /* the following variables are effectively part of the perl context */ |
275 | /* the following variables are effectively part of the perl context */ |
275 | /* and get copied between struct coro and these variables */ |
276 | /* and get copied between struct coro and these variables */ |
276 | /* the mainr easonw e don't support windows process emulation */ |
277 | /* the main reason we don't support windows process emulation */ |
277 | static struct CoroSLF slf_frame; /* the current slf frame */ |
278 | static struct CoroSLF slf_frame; /* the current slf frame */ |
278 | static SV *coro_throw; |
|
|
279 | |
279 | |
280 | /** Coro ********************************************************************/ |
280 | /** Coro ********************************************************************/ |
281 | |
281 | |
282 | #define PRIO_MAX 3 |
282 | #define CORO_PRIO_MAX 3 |
283 | #define PRIO_HIGH 1 |
283 | #define CORO_PRIO_HIGH 1 |
284 | #define PRIO_NORMAL 0 |
284 | #define CORO_PRIO_NORMAL 0 |
285 | #define PRIO_LOW -1 |
285 | #define CORO_PRIO_LOW -1 |
286 | #define PRIO_IDLE -3 |
286 | #define CORO_PRIO_IDLE -3 |
287 | #define PRIO_MIN -4 |
287 | #define CORO_PRIO_MIN -4 |
288 | |
288 | |
289 | /* for Coro.pm */ |
289 | /* for Coro.pm */ |
290 | static SV *coro_current; |
290 | static SV *coro_current; |
291 | static SV *coro_readyhook; |
291 | static SV *coro_readyhook; |
292 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
292 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
|
|
293 | static CV *cv_coro_run; |
293 | static struct coro *coro_first; |
294 | static struct coro *coro_first; |
294 | #define coro_nready coroapi.nready |
295 | #define coro_nready coroapi.nready |
295 | |
296 | |
|
|
297 | /** JIT *********************************************************************/ |
|
|
298 | |
|
|
299 | #if CORO_JIT |
|
|
300 | /* APPLE doesn't have HAVE_MMAP though */ |
|
|
301 | #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__) |
|
|
302 | #ifndef CORO_JIT_TYPE |
|
|
303 | #if __x86_64 && CORO_JIT_UNIXY |
|
|
304 | #define CORO_JIT_TYPE "amd64-unix" |
|
|
305 | #elif __i386 && CORO_JIT_UNIXY |
|
|
306 | #define CORO_JIT_TYPE "x86-unix" |
|
|
307 | #endif |
|
|
308 | #endif |
|
|
309 | #endif |
|
|
310 | |
|
|
311 | #if !defined(CORO_JIT_TYPE) || !HAVE_MMAP |
|
|
312 | #undef CORO_JIT |
|
|
313 | #endif |
|
|
314 | |
|
|
315 | #if CORO_JIT |
|
|
316 | typedef void (*load_save_perl_slots_type)(perl_slots *); |
|
|
317 | static load_save_perl_slots_type load_perl_slots, save_perl_slots; |
|
|
318 | #endif |
|
|
319 | |
|
|
320 | /** Coro::Select ************************************************************/ |
|
|
321 | |
|
|
322 | static OP *(*coro_old_pp_sselect) (pTHX); |
|
|
323 | static SV *coro_select_select; |
|
|
324 | |
|
|
325 | /* horrible hack, but if it works... */ |
|
|
326 | static OP * |
|
|
327 | coro_pp_sselect (pTHX) |
|
|
328 | { |
|
|
329 | dSP; |
|
|
330 | PUSHMARK (SP - 4); /* fake argument list */ |
|
|
331 | XPUSHs (coro_select_select); |
|
|
332 | PUTBACK; |
|
|
333 | |
|
|
334 | /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ |
|
|
335 | PL_op->op_flags |= OPf_STACKED; |
|
|
336 | PL_op->op_private = 0; |
|
|
337 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
|
|
338 | } |
|
|
339 | |
|
|
340 | /** time stuff **************************************************************/ |
|
|
341 | |
|
|
342 | #ifdef HAS_GETTIMEOFDAY |
|
|
343 | |
|
|
344 | ecb_inline void |
|
|
345 | coro_u2time (pTHX_ UV ret[2]) |
|
|
346 | { |
|
|
347 | struct timeval tv; |
|
|
348 | gettimeofday (&tv, 0); |
|
|
349 | |
|
|
350 | ret [0] = tv.tv_sec; |
|
|
351 | ret [1] = tv.tv_usec; |
|
|
352 | } |
|
|
353 | |
|
|
354 | ecb_inline double |
|
|
355 | coro_nvtime (void) |
|
|
356 | { |
|
|
357 | struct timeval tv; |
|
|
358 | gettimeofday (&tv, 0); |
|
|
359 | |
|
|
360 | return tv.tv_sec + tv.tv_usec * 1e-6; |
|
|
361 | } |
|
|
362 | |
|
|
363 | ecb_inline void |
|
|
364 | time_init (pTHX) |
|
|
365 | { |
|
|
366 | nvtime = coro_nvtime; |
|
|
367 | u2time = coro_u2time; |
|
|
368 | } |
|
|
369 | |
|
|
370 | #else |
|
|
371 | |
|
|
372 | ecb_inline void |
|
|
373 | time_init (pTHX) |
|
|
374 | { |
|
|
375 | SV **svp; |
|
|
376 | |
|
|
377 | require_pv ("Time/HiRes.pm"); |
|
|
378 | |
|
|
379 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
380 | |
|
|
381 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
|
|
382 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
|
|
383 | |
|
|
384 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
385 | |
|
|
386 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
|
|
387 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
|
|
388 | } |
|
|
389 | |
|
|
390 | #endif |
|
|
391 | |
296 | /** lowlevel stuff **********************************************************/ |
392 | /** lowlevel stuff **********************************************************/ |
297 | |
393 | |
298 | static SV * |
394 | static SV * ecb_noinline |
299 | coro_get_sv (pTHX_ const char *name, int create) |
395 | coro_get_sv (pTHX_ const char *name, int create) |
300 | { |
396 | { |
301 | #if PERL_VERSION_ATLEAST (5,10,0) |
397 | #if PERL_VERSION_ATLEAST (5,10,0) |
302 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
398 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
303 | get_sv (name, create); |
399 | get_sv (name, create); |
304 | #endif |
400 | #endif |
305 | return get_sv (name, create); |
401 | return get_sv (name, create); |
306 | } |
402 | } |
307 | |
403 | |
308 | static AV * |
404 | static AV * ecb_noinline |
309 | coro_get_av (pTHX_ const char *name, int create) |
405 | coro_get_av (pTHX_ const char *name, int create) |
310 | { |
406 | { |
311 | #if PERL_VERSION_ATLEAST (5,10,0) |
407 | #if PERL_VERSION_ATLEAST (5,10,0) |
312 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
408 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
313 | get_av (name, create); |
409 | get_av (name, create); |
314 | #endif |
410 | #endif |
315 | return get_av (name, create); |
411 | return get_av (name, create); |
316 | } |
412 | } |
317 | |
413 | |
318 | static HV * |
414 | static HV * ecb_noinline |
319 | coro_get_hv (pTHX_ const char *name, int create) |
415 | coro_get_hv (pTHX_ const char *name, int create) |
320 | { |
416 | { |
321 | #if PERL_VERSION_ATLEAST (5,10,0) |
417 | #if PERL_VERSION_ATLEAST (5,10,0) |
322 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
418 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
323 | get_hv (name, create); |
419 | get_hv (name, create); |
324 | #endif |
420 | #endif |
325 | return get_hv (name, create); |
421 | return get_hv (name, create); |
326 | } |
422 | } |
327 | |
423 | |
328 | static AV * |
424 | ecb_inline void |
|
|
425 | coro_times_update (void) |
|
|
426 | { |
|
|
427 | #ifdef coro_clock_gettime |
|
|
428 | struct timespec ts; |
|
|
429 | |
|
|
430 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
431 | coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts); |
|
|
432 | time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec; |
|
|
433 | |
|
|
434 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
435 | coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); |
|
|
436 | time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; |
|
|
437 | #else |
|
|
438 | dTHX; |
|
|
439 | UV tv[2]; |
|
|
440 | |
|
|
441 | u2time (aTHX_ tv); |
|
|
442 | time_real [0] = tv [0]; |
|
|
443 | time_real [1] = tv [1] * 1000; |
|
|
444 | #endif |
|
|
445 | } |
|
|
446 | |
|
|
447 | ecb_inline void |
|
|
448 | coro_times_add (struct coro *c) |
|
|
449 | { |
|
|
450 | c->t_real [1] += time_real [1]; |
|
|
451 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
|
|
452 | c->t_real [0] += time_real [0]; |
|
|
453 | |
|
|
454 | c->t_cpu [1] += time_cpu [1]; |
|
|
455 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
|
|
456 | c->t_cpu [0] += time_cpu [0]; |
|
|
457 | } |
|
|
458 | |
|
|
459 | ecb_inline void |
|
|
460 | coro_times_sub (struct coro *c) |
|
|
461 | { |
|
|
462 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
|
|
463 | c->t_real [1] -= time_real [1]; |
|
|
464 | c->t_real [0] -= time_real [0]; |
|
|
465 | |
|
|
466 | if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; } |
|
|
467 | c->t_cpu [1] -= time_cpu [1]; |
|
|
468 | c->t_cpu [0] -= time_cpu [0]; |
|
|
469 | } |
|
|
470 | |
|
|
471 | /*****************************************************************************/ |
|
|
472 | /* magic glue */ |
|
|
473 | |
|
|
474 | #define CORO_MAGIC_type_cv 26 |
|
|
475 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
476 | |
|
|
477 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
478 | (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
479 | ? SvMAGIC (sv) \ |
|
|
480 | : mg_find (sv, type)) |
|
|
481 | |
|
|
482 | #define CORO_MAGIC(sv, type) \ |
|
|
483 | (ecb_expect_true (SvMAGIC (sv)) \ |
|
|
484 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
485 | : 0) |
|
|
486 | |
|
|
487 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
488 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
489 | |
|
|
490 | ecb_inline MAGIC * |
|
|
491 | SvSTATEhv_p (pTHX_ SV *coro) |
|
|
492 | { |
|
|
493 | MAGIC *mg; |
|
|
494 | |
|
|
495 | if (ecb_expect_true ( |
|
|
496 | SvTYPE (coro) == SVt_PVHV |
|
|
497 | && (mg = CORO_MAGIC_state (coro)) |
|
|
498 | && mg->mg_virtual == &coro_state_vtbl |
|
|
499 | )) |
|
|
500 | return mg; |
|
|
501 | |
|
|
502 | return 0; |
|
|
503 | } |
|
|
504 | |
|
|
505 | ecb_inline struct coro * |
|
|
506 | SvSTATE_ (pTHX_ SV *coro) |
|
|
507 | { |
|
|
508 | MAGIC *mg; |
|
|
509 | |
|
|
510 | if (SvROK (coro)) |
|
|
511 | coro = SvRV (coro); |
|
|
512 | |
|
|
513 | mg = SvSTATEhv_p (aTHX_ coro); |
|
|
514 | if (!mg) |
|
|
515 | croak ("Coro::State object required"); |
|
|
516 | |
|
|
517 | return (struct coro *)mg->mg_ptr; |
|
|
518 | } |
|
|
519 | |
|
|
520 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
521 | |
|
|
522 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
523 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
524 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
525 | |
|
|
526 | /*****************************************************************************/ |
|
|
527 | /* padlist management and caching */ |
|
|
528 | |
|
|
529 | ecb_inline AV * |
329 | coro_clone_padlist (pTHX_ CV *cv) |
530 | coro_derive_padlist (pTHX_ CV *cv) |
330 | { |
531 | { |
331 | AV *padlist = CvPADLIST (cv); |
532 | AV *padlist = CvPADLIST (cv); |
332 | AV *newpadlist, *newpad; |
533 | AV *newpadlist, *newpad; |
333 | |
534 | |
334 | newpadlist = newAV (); |
535 | newpadlist = newAV (); |
… | |
… | |
339 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
540 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
340 | #endif |
541 | #endif |
341 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
542 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
342 | --AvFILLp (padlist); |
543 | --AvFILLp (padlist); |
343 | |
544 | |
344 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
545 | av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); |
345 | av_store (newpadlist, 1, (SV *)newpad); |
546 | av_store (newpadlist, 1, (SV *)newpad); |
346 | |
547 | |
347 | return newpadlist; |
548 | return newpadlist; |
348 | } |
549 | } |
349 | |
550 | |
350 | static void |
551 | ecb_inline void |
351 | free_padlist (pTHX_ AV *padlist) |
552 | free_padlist (pTHX_ AV *padlist) |
352 | { |
553 | { |
353 | /* may be during global destruction */ |
554 | /* may be during global destruction */ |
354 | if (SvREFCNT (padlist)) |
555 | if (!IN_DESTRUCT) |
355 | { |
556 | { |
356 | I32 i = AvFILLp (padlist); |
557 | I32 i = AvFILLp (padlist); |
357 | while (i >= 0) |
558 | |
|
|
559 | while (i > 0) /* special-case index 0 */ |
358 | { |
560 | { |
359 | SV **svp = av_fetch (padlist, i--, FALSE); |
561 | /* we try to be extra-careful here */ |
360 | if (svp) |
562 | AV *av = (AV *)AvARRAY (padlist)[i--]; |
361 | { |
563 | I32 j = AvFILLp (av); |
362 | SV *sv; |
564 | |
363 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
565 | while (j >= 0) |
|
|
566 | SvREFCNT_dec (AvARRAY (av)[j--]); |
|
|
567 | |
|
|
568 | AvFILLp (av) = -1; |
364 | SvREFCNT_dec (sv); |
569 | SvREFCNT_dec (av); |
365 | |
|
|
366 | SvREFCNT_dec (*svp); |
|
|
367 | } |
|
|
368 | } |
570 | } |
369 | |
571 | |
|
|
572 | SvREFCNT_dec (AvARRAY (padlist)[0]); |
|
|
573 | |
|
|
574 | AvFILLp (padlist) = -1; |
370 | SvREFCNT_dec ((SV*)padlist); |
575 | SvREFCNT_dec ((SV*)padlist); |
371 | } |
576 | } |
372 | } |
577 | } |
373 | |
578 | |
374 | static int |
579 | static int |
375 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
580 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
376 | { |
581 | { |
377 | AV *padlist; |
582 | AV *padlist; |
378 | AV *av = (AV *)mg->mg_obj; |
583 | AV *av = (AV *)mg->mg_obj; |
|
|
584 | |
|
|
585 | /* perl manages to free our internal AV and _then_ call us */ |
|
|
586 | if (IN_DESTRUCT) |
|
|
587 | return 0; |
379 | |
588 | |
380 | /* casting is fun. */ |
589 | /* casting is fun. */ |
381 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
590 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
382 | free_padlist (aTHX_ padlist); |
591 | free_padlist (aTHX_ padlist); |
383 | |
592 | |
384 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
593 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
385 | |
594 | |
386 | return 0; |
595 | return 0; |
387 | } |
596 | } |
388 | |
|
|
389 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
|
|
390 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
391 | |
597 | |
392 | static MGVTBL coro_cv_vtbl = { |
598 | static MGVTBL coro_cv_vtbl = { |
393 | 0, 0, 0, 0, |
599 | 0, 0, 0, 0, |
394 | coro_cv_free |
600 | coro_cv_free |
395 | }; |
601 | }; |
396 | |
602 | |
397 | #define CORO_MAGIC(sv, type) \ |
|
|
398 | expect_true (SvMAGIC (sv)) \ |
|
|
399 | ? expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
400 | ? SvMAGIC (sv) \ |
|
|
401 | : mg_find (sv, type) \ |
|
|
402 | : 0 |
|
|
403 | |
|
|
404 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
405 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
406 | |
|
|
407 | INLINE struct coro * |
|
|
408 | SvSTATE_ (pTHX_ SV *coro) |
|
|
409 | { |
|
|
410 | HV *stash; |
|
|
411 | MAGIC *mg; |
|
|
412 | |
|
|
413 | if (SvROK (coro)) |
|
|
414 | coro = SvRV (coro); |
|
|
415 | |
|
|
416 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
417 | croak ("Coro::State object required"); |
|
|
418 | |
|
|
419 | stash = SvSTASH (coro); |
|
|
420 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
421 | { |
|
|
422 | /* very slow, but rare, check */ |
|
|
423 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
424 | croak ("Coro::State object required"); |
|
|
425 | } |
|
|
426 | |
|
|
427 | mg = CORO_MAGIC_state (coro); |
|
|
428 | return (struct coro *)mg->mg_ptr; |
|
|
429 | } |
|
|
430 | |
|
|
431 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
432 | |
|
|
433 | /* fastert than SvSTATE, but expects a coroutine hv */ |
|
|
434 | INLINE struct coro * |
|
|
435 | SvSTATE_hv (SV *sv) |
|
|
436 | { |
|
|
437 | MAGIC *mg = expect_true (SvMAGIC (sv)->mg_type == CORO_MAGIC_type_state) |
|
|
438 | ? SvMAGIC (sv) |
|
|
439 | : mg_find (sv, CORO_MAGIC_type_state); |
|
|
440 | |
|
|
441 | return (struct coro *)mg->mg_ptr; |
|
|
442 | } |
|
|
443 | |
|
|
444 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
445 | |
|
|
446 | /* the next two functions merely cache the padlists */ |
603 | /* the next two functions merely cache the padlists */ |
447 | static void |
604 | ecb_inline void |
448 | get_padlist (pTHX_ CV *cv) |
605 | get_padlist (pTHX_ CV *cv) |
449 | { |
606 | { |
450 | MAGIC *mg = CORO_MAGIC_cv (cv); |
607 | MAGIC *mg = CORO_MAGIC_cv (cv); |
451 | AV *av; |
608 | AV *av; |
452 | |
609 | |
453 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
610 | if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
454 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
611 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
455 | else |
612 | else |
456 | { |
613 | { |
457 | #if CORO_PREFER_PERL_FUNCTIONS |
614 | #if CORO_PREFER_PERL_FUNCTIONS |
458 | /* this is probably cleaner? but also slower! */ |
615 | /* this is probably cleaner? but also slower! */ |
459 | /* in practise, it seems to be less stable */ |
616 | /* in practise, it seems to be less stable */ |
460 | CV *cp = Perl_cv_clone (cv); |
617 | CV *cp = Perl_cv_clone (aTHX_ cv); |
461 | CvPADLIST (cv) = CvPADLIST (cp); |
618 | CvPADLIST (cv) = CvPADLIST (cp); |
462 | CvPADLIST (cp) = 0; |
619 | CvPADLIST (cp) = 0; |
463 | SvREFCNT_dec (cp); |
620 | SvREFCNT_dec (cp); |
464 | #else |
621 | #else |
465 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
622 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
466 | #endif |
623 | #endif |
467 | } |
624 | } |
468 | } |
625 | } |
469 | |
626 | |
470 | static void |
627 | ecb_inline void |
471 | put_padlist (pTHX_ CV *cv) |
628 | put_padlist (pTHX_ CV *cv) |
472 | { |
629 | { |
473 | MAGIC *mg = CORO_MAGIC_cv (cv); |
630 | MAGIC *mg = CORO_MAGIC_cv (cv); |
474 | AV *av; |
631 | AV *av; |
475 | |
632 | |
476 | if (expect_false (!mg)) |
633 | if (ecb_expect_false (!mg)) |
477 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
634 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
478 | |
635 | |
479 | av = (AV *)mg->mg_obj; |
636 | av = (AV *)mg->mg_obj; |
480 | |
637 | |
481 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
638 | if (ecb_expect_false (AvFILLp (av) >= AvMAX (av))) |
482 | av_extend (av, AvMAX (av) + 1); |
639 | av_extend (av, AvFILLp (av) + 1); |
483 | |
640 | |
484 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
641 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
485 | } |
642 | } |
486 | |
643 | |
487 | /** load & save, init *******************************************************/ |
644 | /** load & save, init *******************************************************/ |
|
|
645 | |
|
|
646 | ecb_inline void |
|
|
647 | swap_sv (SV *a, SV *b) |
|
|
648 | { |
|
|
649 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
650 | SV tmp; |
|
|
651 | |
|
|
652 | /* swap sv_any */ |
|
|
653 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
|
|
654 | |
|
|
655 | /* swap sv_flags */ |
|
|
656 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
657 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
658 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
659 | |
|
|
660 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
661 | /* perl 5.10 and later complicates this _quite_ a bit, but it also |
|
|
662 | * is much faster, so no quarrels here. alternatively, we could |
|
|
663 | * sv_upgrade to avoid this. |
|
|
664 | */ |
|
|
665 | { |
|
|
666 | /* swap sv_u */ |
|
|
667 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
668 | |
|
|
669 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
670 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
671 | */ |
|
|
672 | #define svany_in_head(type) \ |
|
|
673 | (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type))) |
|
|
674 | |
|
|
675 | if (svany_in_head (SvTYPE (a))) |
|
|
676 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
677 | |
|
|
678 | if (svany_in_head (SvTYPE (b))) |
|
|
679 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
680 | } |
|
|
681 | #endif |
|
|
682 | } |
|
|
683 | |
|
|
684 | /* swap sv heads, at least logically */ |
|
|
685 | static void |
|
|
686 | swap_svs (pTHX_ Coro__State c) |
|
|
687 | { |
|
|
688 | int i; |
|
|
689 | |
|
|
690 | for (i = 0; i <= AvFILLp (c->swap_sv); i += 2) |
|
|
691 | swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]); |
|
|
692 | } |
|
|
693 | |
|
|
694 | #define SWAP_SVS(coro) \ |
|
|
695 | if (ecb_expect_false ((coro)->swap_sv)) \ |
|
|
696 | swap_svs (aTHX_ (coro)) |
|
|
697 | |
|
|
698 | static void |
|
|
699 | on_enterleave_call (pTHX_ SV *cb); |
488 | |
700 | |
489 | static void |
701 | static void |
490 | load_perl (pTHX_ Coro__State c) |
702 | load_perl (pTHX_ Coro__State c) |
491 | { |
703 | { |
492 | perl_slots *slot = c->slot; |
704 | perl_slots *slot = c->slot; |
493 | c->slot = 0; |
705 | c->slot = 0; |
494 | |
706 | |
495 | PL_mainstack = c->mainstack; |
707 | PL_mainstack = c->mainstack; |
496 | |
708 | |
497 | GvSV (PL_defgv) = slot->defsv; |
709 | #if CORO_JIT |
498 | GvAV (PL_defgv) = slot->defav; |
710 | load_perl_slots (slot); |
499 | GvSV (PL_errgv) = slot->errsv; |
711 | #else |
500 | GvSV (irsgv) = slot->irsgv; |
|
|
501 | |
|
|
502 | #define VAR(name,type) PL_ ## name = slot->name; |
712 | #define VARx(name,expr,type) expr = slot->name; |
503 | # include "state.h" |
713 | #include "state.h" |
504 | #undef VAR |
714 | #endif |
505 | |
715 | |
506 | { |
716 | { |
507 | dSP; |
717 | dSP; |
508 | |
718 | |
509 | CV *cv; |
719 | CV *cv; |
510 | |
720 | |
511 | /* now do the ugly restore mess */ |
721 | /* now do the ugly restore mess */ |
512 | while (expect_true (cv = (CV *)POPs)) |
722 | while (ecb_expect_true (cv = (CV *)POPs)) |
513 | { |
723 | { |
514 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
724 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
515 | CvDEPTH (cv) = PTR2IV (POPs); |
725 | CvDEPTH (cv) = PTR2IV (POPs); |
516 | CvPADLIST (cv) = (AV *)POPs; |
726 | CvPADLIST (cv) = (AV *)POPs; |
517 | } |
727 | } |
518 | |
728 | |
519 | PUTBACK; |
729 | PUTBACK; |
520 | } |
730 | } |
521 | |
731 | |
522 | slf_frame = c->slf_frame; |
732 | slf_frame = c->slf_frame; |
523 | coro_throw = c->throw; |
733 | CORO_THROW = c->except; |
|
|
734 | |
|
|
735 | if (ecb_expect_false (enable_times)) |
|
|
736 | { |
|
|
737 | if (ecb_expect_false (!times_valid)) |
|
|
738 | coro_times_update (); |
|
|
739 | |
|
|
740 | coro_times_sub (c); |
|
|
741 | } |
|
|
742 | |
|
|
743 | if (ecb_expect_false (c->on_enter)) |
|
|
744 | { |
|
|
745 | int i; |
|
|
746 | |
|
|
747 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
748 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
749 | } |
|
|
750 | |
|
|
751 | SWAP_SVS (c); |
524 | } |
752 | } |
525 | |
753 | |
526 | static void |
754 | static void |
527 | save_perl (pTHX_ Coro__State c) |
755 | save_perl (pTHX_ Coro__State c) |
528 | { |
756 | { |
529 | c->throw = coro_throw; |
757 | SWAP_SVS (c); |
|
|
758 | |
|
|
759 | if (ecb_expect_false (c->on_leave)) |
|
|
760 | { |
|
|
761 | int i; |
|
|
762 | |
|
|
763 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
764 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
765 | } |
|
|
766 | |
|
|
767 | times_valid = 0; |
|
|
768 | |
|
|
769 | if (ecb_expect_false (enable_times)) |
|
|
770 | { |
|
|
771 | coro_times_update (); times_valid = 1; |
|
|
772 | coro_times_add (c); |
|
|
773 | } |
|
|
774 | |
|
|
775 | c->except = CORO_THROW; |
530 | c->slf_frame = slf_frame; |
776 | c->slf_frame = slf_frame; |
531 | |
777 | |
532 | { |
778 | { |
533 | dSP; |
779 | dSP; |
534 | I32 cxix = cxstack_ix; |
780 | I32 cxix = cxstack_ix; |
… | |
… | |
542 | |
788 | |
543 | XPUSHs (Nullsv); |
789 | XPUSHs (Nullsv); |
544 | /* this loop was inspired by pp_caller */ |
790 | /* this loop was inspired by pp_caller */ |
545 | for (;;) |
791 | for (;;) |
546 | { |
792 | { |
547 | while (expect_true (cxix >= 0)) |
793 | while (ecb_expect_true (cxix >= 0)) |
548 | { |
794 | { |
549 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
795 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
550 | |
796 | |
551 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
797 | if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT)) |
552 | { |
798 | { |
553 | CV *cv = cx->blk_sub.cv; |
799 | CV *cv = cx->blk_sub.cv; |
554 | |
800 | |
555 | if (expect_true (CvDEPTH (cv))) |
801 | if (ecb_expect_true (CvDEPTH (cv))) |
556 | { |
802 | { |
557 | EXTEND (SP, 3); |
803 | EXTEND (SP, 3); |
558 | PUSHs ((SV *)CvPADLIST (cv)); |
804 | PUSHs ((SV *)CvPADLIST (cv)); |
559 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
805 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
560 | PUSHs ((SV *)cv); |
806 | PUSHs ((SV *)cv); |
… | |
… | |
563 | get_padlist (aTHX_ cv); |
809 | get_padlist (aTHX_ cv); |
564 | } |
810 | } |
565 | } |
811 | } |
566 | } |
812 | } |
567 | |
813 | |
568 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
814 | if (ecb_expect_true (top_si->si_type == PERLSI_MAIN)) |
569 | break; |
815 | break; |
570 | |
816 | |
571 | top_si = top_si->si_prev; |
817 | top_si = top_si->si_prev; |
572 | ccstk = top_si->si_cxstack; |
818 | ccstk = top_si->si_cxstack; |
573 | cxix = top_si->si_cxix; |
819 | cxix = top_si->si_cxix; |
… | |
… | |
575 | |
821 | |
576 | PUTBACK; |
822 | PUTBACK; |
577 | } |
823 | } |
578 | |
824 | |
579 | /* allocate some space on the context stack for our purposes */ |
825 | /* allocate some space on the context stack for our purposes */ |
580 | /* we manually unroll here, as usually 2 slots is enough */ |
826 | if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max)) |
581 | if (SLOT_COUNT >= 1) CXINC; |
|
|
582 | if (SLOT_COUNT >= 2) CXINC; |
|
|
583 | if (SLOT_COUNT >= 3) CXINC; |
|
|
584 | { |
827 | { |
585 | int i; |
828 | unsigned int i; |
|
|
829 | |
586 | for (i = 3; i < SLOT_COUNT; ++i) |
830 | for (i = 0; i < SLOT_COUNT; ++i) |
587 | CXINC; |
831 | CXINC; |
588 | } |
832 | |
589 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
833 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
834 | } |
590 | |
835 | |
591 | c->mainstack = PL_mainstack; |
836 | c->mainstack = PL_mainstack; |
592 | |
837 | |
593 | { |
838 | { |
594 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
839 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
595 | |
840 | |
596 | slot->defav = GvAV (PL_defgv); |
841 | #if CORO_JIT |
597 | slot->defsv = DEFSV; |
842 | save_perl_slots (slot); |
598 | slot->errsv = ERRSV; |
843 | #else |
599 | slot->irsgv = GvSV (irsgv); |
|
|
600 | |
|
|
601 | #define VAR(name,type) slot->name = PL_ ## name; |
844 | #define VARx(name,expr,type) slot->name = expr; |
602 | # include "state.h" |
845 | #include "state.h" |
603 | #undef VAR |
846 | #endif |
604 | } |
847 | } |
605 | } |
848 | } |
606 | |
849 | |
607 | /* |
850 | /* |
608 | * allocate various perl stacks. This is almost an exact copy |
851 | * allocate various perl stacks. This is almost an exact copy |
609 | * of perl.c:init_stacks, except that it uses less memory |
852 | * of perl.c:init_stacks, except that it uses less memory |
610 | * on the (sometimes correct) assumption that coroutines do |
853 | * on the (sometimes correct) assumption that coroutines do |
611 | * not usually need a lot of stackspace. |
854 | * not usually need a lot of stackspace. |
612 | */ |
855 | */ |
613 | #if CORO_PREFER_PERL_FUNCTIONS |
856 | #if CORO_PREFER_PERL_FUNCTIONS |
614 | # define coro_init_stacks init_stacks |
857 | # define coro_init_stacks(thx) init_stacks () |
615 | #else |
858 | #else |
616 | static void |
859 | static void |
617 | coro_init_stacks (pTHX) |
860 | coro_init_stacks (pTHX) |
618 | { |
861 | { |
619 | PL_curstackinfo = new_stackinfo(32, 8); |
862 | PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */ |
620 | PL_curstackinfo->si_type = PERLSI_MAIN; |
863 | PL_curstackinfo->si_type = PERLSI_MAIN; |
621 | PL_curstack = PL_curstackinfo->si_stack; |
864 | PL_curstack = PL_curstackinfo->si_stack; |
622 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
865 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
623 | |
866 | |
624 | PL_stack_base = AvARRAY(PL_curstack); |
867 | PL_stack_base = AvARRAY(PL_curstack); |
… | |
… | |
639 | #endif |
882 | #endif |
640 | |
883 | |
641 | New(54,PL_scopestack,8,I32); |
884 | New(54,PL_scopestack,8,I32); |
642 | PL_scopestack_ix = 0; |
885 | PL_scopestack_ix = 0; |
643 | PL_scopestack_max = 8; |
886 | PL_scopestack_max = 8; |
|
|
887 | #if HAS_SCOPESTACK_NAME |
|
|
888 | New(54,PL_scopestack_name,8,const char*); |
|
|
889 | #endif |
644 | |
890 | |
645 | New(54,PL_savestack,24,ANY); |
891 | New(54,PL_savestack,24,ANY); |
646 | PL_savestack_ix = 0; |
892 | PL_savestack_ix = 0; |
647 | PL_savestack_max = 24; |
893 | PL_savestack_max = 24; |
648 | |
894 | |
… | |
… | |
676 | } |
922 | } |
677 | |
923 | |
678 | Safefree (PL_tmps_stack); |
924 | Safefree (PL_tmps_stack); |
679 | Safefree (PL_markstack); |
925 | Safefree (PL_markstack); |
680 | Safefree (PL_scopestack); |
926 | Safefree (PL_scopestack); |
|
|
927 | #if HAS_SCOPESTACK_NAME |
|
|
928 | Safefree (PL_scopestack_name); |
|
|
929 | #endif |
681 | Safefree (PL_savestack); |
930 | Safefree (PL_savestack); |
682 | #if !PERL_VERSION_ATLEAST (5,10,0) |
931 | #if !PERL_VERSION_ATLEAST (5,10,0) |
683 | Safefree (PL_retstack); |
932 | Safefree (PL_retstack); |
684 | #endif |
933 | #endif |
685 | } |
934 | } |
686 | |
935 | |
|
|
936 | #define CORO_RSS \ |
|
|
937 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
938 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
939 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
940 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
941 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
942 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
943 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
944 | |
687 | static size_t |
945 | static size_t |
688 | coro_rss (pTHX_ struct coro *coro) |
946 | coro_rss (pTHX_ struct coro *coro) |
689 | { |
947 | { |
690 | size_t rss = sizeof (*coro); |
948 | size_t rss = sizeof (*coro); |
691 | |
949 | |
692 | if (coro->mainstack) |
950 | if (coro->mainstack) |
693 | { |
951 | { |
694 | perl_slots tmp_slot; |
|
|
695 | perl_slots *slot; |
|
|
696 | |
|
|
697 | if (coro->flags & CF_RUNNING) |
952 | if (coro->flags & CF_RUNNING) |
698 | { |
953 | { |
699 | slot = &tmp_slot; |
954 | #define SYM(sym) PL_ ## sym |
700 | |
955 | CORO_RSS; |
701 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
702 | # include "state.h" |
|
|
703 | #undef VAR |
956 | #undef SYM |
704 | } |
957 | } |
705 | else |
958 | else |
706 | slot = coro->slot; |
|
|
707 | |
|
|
708 | if (slot) |
|
|
709 | { |
959 | { |
710 | rss += sizeof (slot->curstackinfo); |
960 | #define SYM(sym) coro->slot->sym |
711 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
961 | CORO_RSS; |
712 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
962 | #undef SYM |
713 | rss += slot->tmps_max * sizeof (SV *); |
|
|
714 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
715 | rss += slot->scopestack_max * sizeof (I32); |
|
|
716 | rss += slot->savestack_max * sizeof (ANY); |
|
|
717 | |
|
|
718 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
719 | rss += slot->retstack_max * sizeof (OP *); |
|
|
720 | #endif |
|
|
721 | } |
963 | } |
722 | } |
964 | } |
723 | |
965 | |
724 | return rss; |
966 | return rss; |
725 | } |
967 | } |
… | |
… | |
738 | #endif |
980 | #endif |
739 | |
981 | |
740 | /* |
982 | /* |
741 | * This overrides the default magic get method of %SIG elements. |
983 | * This overrides the default magic get method of %SIG elements. |
742 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
984 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
743 | * and instead of tryign to save and restore the hash elements, we just provide |
985 | * and instead of trying to save and restore the hash elements (extremely slow), |
744 | * readback here. |
986 | * we just provide our own readback here. |
745 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
746 | * not expecting this to actually change the hook. This is a potential problem |
|
|
747 | * when a schedule happens then, but we ignore this. |
|
|
748 | */ |
987 | */ |
749 | static int |
988 | static int ecb_cold |
750 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
989 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
751 | { |
990 | { |
752 | const char *s = MgPV_nolen_const (mg); |
991 | const char *s = MgPV_nolen_const (mg); |
753 | |
992 | |
754 | if (*s == '_') |
993 | if (*s == '_') |
… | |
… | |
758 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
997 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
759 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
998 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
760 | |
999 | |
761 | if (svp) |
1000 | if (svp) |
762 | { |
1001 | { |
763 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
1002 | SV *ssv; |
|
|
1003 | |
|
|
1004 | if (!*svp) |
|
|
1005 | ssv = &PL_sv_undef; |
|
|
1006 | else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */ |
|
|
1007 | ssv = sv_2mortal (newRV_inc (*svp)); |
|
|
1008 | else |
|
|
1009 | ssv = *svp; |
|
|
1010 | |
|
|
1011 | sv_setsv (sv, ssv); |
764 | return 0; |
1012 | return 0; |
765 | } |
1013 | } |
766 | } |
1014 | } |
767 | |
1015 | |
768 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
1016 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
769 | } |
1017 | } |
770 | |
1018 | |
771 | static int |
1019 | static int ecb_cold |
772 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
1020 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
773 | { |
1021 | { |
774 | const char *s = MgPV_nolen_const (mg); |
1022 | const char *s = MgPV_nolen_const (mg); |
775 | |
1023 | |
776 | if (*s == '_') |
1024 | if (*s == '_') |
… | |
… | |
790 | } |
1038 | } |
791 | |
1039 | |
792 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
1040 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
793 | } |
1041 | } |
794 | |
1042 | |
795 | static int |
1043 | static int ecb_cold |
796 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
1044 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
797 | { |
1045 | { |
798 | const char *s = MgPV_nolen_const (mg); |
1046 | const char *s = MgPV_nolen_const (mg); |
799 | |
1047 | |
800 | if (*s == '_') |
1048 | if (*s == '_') |
… | |
… | |
805 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
1053 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
806 | |
1054 | |
807 | if (svp) |
1055 | if (svp) |
808 | { |
1056 | { |
809 | SV *old = *svp; |
1057 | SV *old = *svp; |
810 | *svp = newSVsv (sv); |
1058 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
811 | SvREFCNT_dec (old); |
1059 | SvREFCNT_dec (old); |
812 | return 0; |
1060 | return 0; |
813 | } |
1061 | } |
814 | } |
1062 | } |
815 | |
1063 | |
… | |
… | |
827 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
1075 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
828 | { |
1076 | { |
829 | return 0; |
1077 | return 0; |
830 | } |
1078 | } |
831 | |
1079 | |
832 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
1080 | static int |
|
|
1081 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
1082 | { |
|
|
1083 | return 1; |
|
|
1084 | } |
|
|
1085 | |
|
|
1086 | static UNOP init_perl_op; |
|
|
1087 | |
|
|
1088 | ecb_noinline static void /* noinline to keep it out of the transfer fast path */ |
833 | coro_setup (pTHX_ struct coro *coro) |
1089 | init_perl (pTHX_ struct coro *coro) |
834 | { |
1090 | { |
835 | /* |
1091 | /* |
836 | * emulate part of the perl startup here. |
1092 | * emulate part of the perl startup here. |
837 | */ |
1093 | */ |
838 | coro_init_stacks (aTHX); |
1094 | coro_init_stacks (aTHX); |
839 | |
1095 | |
840 | PL_runops = RUNOPS_DEFAULT; |
1096 | PL_runops = RUNOPS_DEFAULT; |
841 | PL_curcop = &PL_compiling; |
1097 | PL_curcop = &PL_compiling; |
842 | PL_in_eval = EVAL_NULL; |
1098 | PL_in_eval = EVAL_NULL; |
843 | PL_comppad = 0; |
1099 | PL_comppad = 0; |
|
|
1100 | PL_comppad_name = 0; |
|
|
1101 | PL_comppad_name_fill = 0; |
|
|
1102 | PL_comppad_name_floor = 0; |
844 | PL_curpm = 0; |
1103 | PL_curpm = 0; |
845 | PL_curpad = 0; |
1104 | PL_curpad = 0; |
846 | PL_localizing = 0; |
1105 | PL_localizing = 0; |
847 | PL_dirty = 0; |
|
|
848 | PL_restartop = 0; |
1106 | PL_restartop = 0; |
849 | #if PERL_VERSION_ATLEAST (5,10,0) |
1107 | #if PERL_VERSION_ATLEAST (5,10,0) |
850 | PL_parser = 0; |
1108 | PL_parser = 0; |
851 | #endif |
1109 | #endif |
|
|
1110 | PL_hints = 0; |
852 | |
1111 | |
853 | /* recreate the die/warn hooks */ |
1112 | /* recreate the die/warn hooks */ |
854 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
1113 | PL_diehook = SvREFCNT_inc (rv_diehook); |
855 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
1114 | PL_warnhook = SvREFCNT_inc (rv_warnhook); |
856 | |
1115 | |
857 | GvSV (PL_defgv) = newSV (0); |
1116 | GvSV (PL_defgv) = newSV (0); |
858 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1117 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
859 | GvSV (PL_errgv) = newSV (0); |
1118 | GvSV (PL_errgv) = newSV (0); |
860 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
1119 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
1120 | GvHV (PL_hintgv) = 0; |
861 | PL_rs = newSVsv (GvSV (irsgv)); |
1121 | PL_rs = newSVsv (GvSV (irsgv)); |
862 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
1122 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
863 | |
1123 | |
864 | { |
1124 | { |
865 | dSP; |
1125 | dSP; |
866 | UNOP myop; |
1126 | UNOP myop; |
867 | |
1127 | |
868 | Zero (&myop, 1, UNOP); |
1128 | Zero (&myop, 1, UNOP); |
869 | myop.op_next = Nullop; |
1129 | myop.op_next = Nullop; |
|
|
1130 | myop.op_type = OP_ENTERSUB; |
870 | myop.op_flags = OPf_WANT_VOID; |
1131 | myop.op_flags = OPf_WANT_VOID; |
871 | |
1132 | |
872 | PUSHMARK (SP); |
1133 | PUSHMARK (SP); |
873 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
1134 | PUSHs ((SV *)coro->startcv); |
874 | PUTBACK; |
1135 | PUTBACK; |
875 | PL_op = (OP *)&myop; |
1136 | PL_op = (OP *)&myop; |
876 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1137 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
877 | SPAGAIN; |
|
|
878 | } |
1138 | } |
879 | |
1139 | |
880 | /* this newly created coroutine might be run on an existing cctx which most |
1140 | /* this newly created coroutine might be run on an existing cctx which most |
881 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
1141 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
882 | */ |
1142 | */ |
883 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
1143 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
884 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
1144 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
1145 | slf_frame.destroy = 0; |
885 | |
1146 | |
886 | coro_throw = coro->throw; |
1147 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
887 | } |
1148 | init_perl_op.op_next = PL_op; |
|
|
1149 | init_perl_op.op_type = OP_ENTERSUB; |
|
|
1150 | init_perl_op.op_ppaddr = pp_slf; |
|
|
1151 | /* no flags etc. required, as an init function won't be called */ |
888 | |
1152 | |
|
|
1153 | PL_op = (OP *)&init_perl_op; |
|
|
1154 | |
|
|
1155 | /* copy throw, in case it was set before init_perl */ |
|
|
1156 | CORO_THROW = coro->except; |
|
|
1157 | |
|
|
1158 | SWAP_SVS (coro); |
|
|
1159 | |
|
|
1160 | if (ecb_expect_false (enable_times)) |
|
|
1161 | { |
|
|
1162 | coro_times_update (); |
|
|
1163 | coro_times_sub (coro); |
|
|
1164 | } |
|
|
1165 | } |
|
|
1166 | |
889 | static void |
1167 | static void |
890 | coro_destruct (pTHX_ struct coro *coro) |
1168 | coro_unwind_stacks (pTHX) |
891 | { |
1169 | { |
892 | if (!IN_DESTRUCT) |
1170 | if (!IN_DESTRUCT) |
893 | { |
1171 | { |
894 | /* restore all saved variables and stuff */ |
1172 | /* restore all saved variables and stuff */ |
895 | LEAVE_SCOPE (0); |
1173 | LEAVE_SCOPE (0); |
… | |
… | |
903 | POPSTACK_TO (PL_mainstack); |
1181 | POPSTACK_TO (PL_mainstack); |
904 | |
1182 | |
905 | /* unwind main stack */ |
1183 | /* unwind main stack */ |
906 | dounwind (-1); |
1184 | dounwind (-1); |
907 | } |
1185 | } |
|
|
1186 | } |
908 | |
1187 | |
909 | SvREFCNT_dec (GvSV (PL_defgv)); |
1188 | static void |
910 | SvREFCNT_dec (GvAV (PL_defgv)); |
1189 | destroy_perl (pTHX_ struct coro *coro) |
911 | SvREFCNT_dec (GvSV (PL_errgv)); |
1190 | { |
912 | SvREFCNT_dec (PL_defoutgv); |
1191 | SV *svf [9]; |
913 | SvREFCNT_dec (PL_rs); |
|
|
914 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
915 | |
1192 | |
916 | SvREFCNT_dec (PL_diehook); |
|
|
917 | SvREFCNT_dec (PL_warnhook); |
|
|
918 | |
1193 | { |
|
|
1194 | SV *old_current = SvRV (coro_current); |
|
|
1195 | struct coro *current = SvSTATE (old_current); |
|
|
1196 | |
|
|
1197 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1198 | |
|
|
1199 | save_perl (aTHX_ current); |
|
|
1200 | |
|
|
1201 | /* this will cause transfer_check to croak on block*/ |
|
|
1202 | SvRV_set (coro_current, (SV *)coro->hv); |
|
|
1203 | |
|
|
1204 | load_perl (aTHX_ coro); |
|
|
1205 | |
|
|
1206 | coro_unwind_stacks (aTHX); |
|
|
1207 | |
|
|
1208 | /* restore swapped sv's */ |
|
|
1209 | SWAP_SVS (coro); |
|
|
1210 | |
|
|
1211 | coro_destruct_stacks (aTHX); |
|
|
1212 | |
|
|
1213 | /* now save some sv's to be free'd later */ |
|
|
1214 | svf [0] = GvSV (PL_defgv); |
|
|
1215 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1216 | svf [2] = GvSV (PL_errgv); |
|
|
1217 | svf [3] = (SV *)PL_defoutgv; |
|
|
1218 | svf [4] = PL_rs; |
|
|
1219 | svf [5] = GvSV (irsgv); |
|
|
1220 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1221 | svf [7] = PL_diehook; |
|
|
1222 | svf [8] = PL_warnhook; |
|
|
1223 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1224 | |
|
|
1225 | SvRV_set (coro_current, old_current); |
|
|
1226 | |
|
|
1227 | load_perl (aTHX_ current); |
|
|
1228 | } |
|
|
1229 | |
|
|
1230 | { |
|
|
1231 | unsigned int i; |
|
|
1232 | |
|
|
1233 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1234 | SvREFCNT_dec (svf [i]); |
|
|
1235 | |
919 | SvREFCNT_dec (coro->saved_deffh); |
1236 | SvREFCNT_dec (coro->saved_deffh); |
920 | SvREFCNT_dec (coro_throw); |
1237 | SvREFCNT_dec (coro->rouse_cb); |
921 | |
1238 | SvREFCNT_dec (coro->invoke_cb); |
922 | coro_destruct_stacks (aTHX); |
1239 | SvREFCNT_dec (coro->invoke_av); |
|
|
1240 | } |
923 | } |
1241 | } |
924 | |
1242 | |
925 | INLINE void |
1243 | ecb_inline void |
926 | free_coro_mortal (pTHX) |
1244 | free_coro_mortal (pTHX) |
927 | { |
1245 | { |
928 | if (expect_true (coro_mortal)) |
1246 | if (ecb_expect_true (coro_mortal)) |
929 | { |
1247 | { |
930 | SvREFCNT_dec (coro_mortal); |
1248 | SvREFCNT_dec ((SV *)coro_mortal); |
931 | coro_mortal = 0; |
1249 | coro_mortal = 0; |
932 | } |
1250 | } |
933 | } |
1251 | } |
934 | |
1252 | |
935 | static int |
1253 | static int |
936 | runops_trace (pTHX) |
1254 | runops_trace (pTHX) |
937 | { |
1255 | { |
938 | COP *oldcop = 0; |
1256 | COP *oldcop = 0; |
939 | int oldcxix = -2; |
1257 | int oldcxix = -2; |
940 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
|
|
941 | coro_cctx *cctx = coro->cctx; |
|
|
942 | |
1258 | |
943 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
1259 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
944 | { |
1260 | { |
945 | PERL_ASYNC_CHECK (); |
1261 | PERL_ASYNC_CHECK (); |
946 | |
1262 | |
947 | if (cctx->flags & CC_TRACE_ALL) |
1263 | if (cctx_current->flags & CC_TRACE_ALL) |
948 | { |
1264 | { |
949 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
1265 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
950 | { |
1266 | { |
951 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1267 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
952 | SV **bot, **top; |
1268 | SV **bot, **top; |
953 | AV *av = newAV (); /* return values */ |
1269 | AV *av = newAV (); /* return values */ |
954 | SV **cb; |
1270 | SV **cb; |
… | |
… | |
991 | |
1307 | |
992 | if (PL_curcop != &PL_compiling) |
1308 | if (PL_curcop != &PL_compiling) |
993 | { |
1309 | { |
994 | SV **cb; |
1310 | SV **cb; |
995 | |
1311 | |
996 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1312 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
997 | { |
1313 | { |
998 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1314 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
999 | |
1315 | |
1000 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1316 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1001 | { |
1317 | { |
1002 | runops_proc_t old_runops = PL_runops; |
|
|
1003 | dSP; |
1318 | dSP; |
1004 | GV *gv = CvGV (cx->blk_sub.cv); |
1319 | GV *gv = CvGV (cx->blk_sub.cv); |
1005 | SV *fullname = sv_2mortal (newSV (0)); |
1320 | SV *fullname = sv_2mortal (newSV (0)); |
1006 | |
1321 | |
1007 | if (isGV (gv)) |
1322 | if (isGV (gv)) |
… | |
… | |
1012 | SAVETMPS; |
1327 | SAVETMPS; |
1013 | EXTEND (SP, 3); |
1328 | EXTEND (SP, 3); |
1014 | PUSHMARK (SP); |
1329 | PUSHMARK (SP); |
1015 | PUSHs (&PL_sv_yes); |
1330 | PUSHs (&PL_sv_yes); |
1016 | PUSHs (fullname); |
1331 | PUSHs (fullname); |
1017 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1332 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1018 | PUTBACK; |
1333 | PUTBACK; |
1019 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1334 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1020 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1335 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1021 | SPAGAIN; |
1336 | SPAGAIN; |
1022 | FREETMPS; |
1337 | FREETMPS; |
… | |
… | |
1025 | } |
1340 | } |
1026 | |
1341 | |
1027 | oldcxix = cxstack_ix; |
1342 | oldcxix = cxstack_ix; |
1028 | } |
1343 | } |
1029 | |
1344 | |
1030 | if (cctx->flags & CC_TRACE_LINE) |
1345 | if (cctx_current->flags & CC_TRACE_LINE) |
1031 | { |
1346 | { |
1032 | dSP; |
1347 | dSP; |
1033 | |
1348 | |
1034 | PL_runops = RUNOPS_DEFAULT; |
1349 | PL_runops = RUNOPS_DEFAULT; |
1035 | ENTER; |
1350 | ENTER; |
… | |
… | |
1054 | |
1369 | |
1055 | TAINT_NOT; |
1370 | TAINT_NOT; |
1056 | return 0; |
1371 | return 0; |
1057 | } |
1372 | } |
1058 | |
1373 | |
|
|
1374 | static struct CoroSLF cctx_ssl_frame; |
|
|
1375 | |
1059 | static void |
1376 | static void |
1060 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
1377 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
1061 | { |
1378 | { |
1062 | ta->prev = (struct coro *)cctx; |
|
|
1063 | ta->next = 0; |
1379 | ta->prev = 0; |
1064 | } |
1380 | } |
1065 | |
1381 | |
1066 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1382 | static int |
1067 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1383 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
1068 | /* during execution of a perl program */ |
|
|
1069 | /* also initialises PL_top_env */ |
|
|
1070 | static void NOINLINE |
|
|
1071 | cctx_prepare (pTHX_ coro_cctx *cctx) |
|
|
1072 | { |
1384 | { |
1073 | dSP; |
1385 | *frame = cctx_ssl_frame; |
1074 | UNOP myop; |
|
|
1075 | |
1386 | |
|
|
1387 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1388 | } |
|
|
1389 | |
|
|
1390 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
|
|
1391 | static void ecb_noinline |
|
|
1392 | cctx_prepare (pTHX) |
|
|
1393 | { |
1076 | PL_top_env = &PL_start_env; |
1394 | PL_top_env = &PL_start_env; |
1077 | |
1395 | |
1078 | if (cctx->flags & CC_TRACE) |
1396 | if (cctx_current->flags & CC_TRACE) |
1079 | PL_runops = runops_trace; |
1397 | PL_runops = runops_trace; |
1080 | |
1398 | |
1081 | Zero (&myop, 1, UNOP); |
1399 | /* we already must be executing an SLF op, there is no other valid way |
1082 | myop.op_next = PL_op; |
1400 | * that can lead to creation of a new cctx */ |
1083 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1401 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1402 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1084 | |
1403 | |
1085 | PUSHMARK (SP); |
1404 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1086 | EXTEND (SP, 2); |
1405 | cctx_ssl_frame = slf_frame; |
1087 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1406 | |
1088 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1407 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1089 | PUTBACK; |
1408 | slf_frame.check = slf_check_set_stacklevel; |
1090 | PL_op = (OP *)&myop; |
|
|
1091 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1092 | SPAGAIN; |
|
|
1093 | } |
1409 | } |
1094 | |
1410 | |
1095 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1411 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1096 | INLINE void |
1412 | ecb_inline void |
1097 | transfer_tail (pTHX) |
1413 | transfer_tail (pTHX) |
1098 | { |
1414 | { |
1099 | free_coro_mortal (aTHX); |
1415 | free_coro_mortal (aTHX); |
|
|
1416 | } |
|
|
1417 | |
|
|
1418 | /* try to exit the same way perl's main function would do */ |
|
|
1419 | /* we do not bother resetting the environment or other things *7 |
|
|
1420 | /* that are not, uhm, essential */ |
|
|
1421 | /* this obviously also doesn't work when perl is embedded */ |
|
|
1422 | static void ecb_noinline ecb_cold |
|
|
1423 | perlish_exit (pTHX) |
|
|
1424 | { |
|
|
1425 | int exitstatus = perl_destruct (PL_curinterp); |
|
|
1426 | perl_free (PL_curinterp); |
|
|
1427 | exit (exitstatus); |
1100 | } |
1428 | } |
1101 | |
1429 | |
1102 | /* |
1430 | /* |
1103 | * this is a _very_ stripped down perl interpreter ;) |
1431 | * this is a _very_ stripped down perl interpreter ;) |
1104 | */ |
1432 | */ |
… | |
… | |
1116 | /* normally we would need to skip the entersub here */ |
1444 | /* normally we would need to skip the entersub here */ |
1117 | /* not doing so will re-execute it, which is exactly what we want */ |
1445 | /* not doing so will re-execute it, which is exactly what we want */ |
1118 | /* PL_nop = PL_nop->op_next */ |
1446 | /* PL_nop = PL_nop->op_next */ |
1119 | |
1447 | |
1120 | /* inject a fake subroutine call to cctx_init */ |
1448 | /* inject a fake subroutine call to cctx_init */ |
1121 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1449 | cctx_prepare (aTHX); |
1122 | |
1450 | |
1123 | /* cctx_run is the alternative tail of transfer() */ |
1451 | /* cctx_run is the alternative tail of transfer() */ |
1124 | transfer_tail (aTHX); |
1452 | transfer_tail (aTHX); |
1125 | |
1453 | |
1126 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1454 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1127 | PL_restartop = PL_op; |
1455 | PL_restartop = PL_op; |
1128 | perl_run (PL_curinterp); |
1456 | perl_run (PL_curinterp); |
|
|
1457 | /* |
|
|
1458 | * Unfortunately, there is no way to get at the return values of the |
|
|
1459 | * coro body here, as perl_run destroys these. Likewise, we cannot catch |
|
|
1460 | * runtime errors here, as this is just a random interpreter, not a thread. |
|
|
1461 | */ |
1129 | |
1462 | |
1130 | /* |
1463 | /* |
1131 | * If perl-run returns we assume exit() was being called or the coro |
1464 | * If perl-run returns we assume exit() was being called or the coro |
1132 | * fell off the end, which seems to be the only valid (non-bug) |
1465 | * fell off the end, which seems to be the only valid (non-bug) |
1133 | * reason for perl_run to return. We try to exit by jumping to the |
1466 | * reason for perl_run to return. We try to mimic whatever perl is normally |
1134 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1467 | * doing in that case. YMMV. |
1135 | * coroutine as Coro has no such concept |
|
|
1136 | */ |
1468 | */ |
1137 | PL_top_env = main_top_env; |
1469 | perlish_exit (aTHX); |
1138 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1139 | } |
1470 | } |
1140 | } |
1471 | } |
1141 | |
1472 | |
1142 | static coro_cctx * |
1473 | static coro_cctx * |
1143 | cctx_new () |
1474 | cctx_new (void) |
1144 | { |
1475 | { |
1145 | coro_cctx *cctx; |
1476 | coro_cctx *cctx; |
1146 | |
1477 | |
1147 | ++cctx_count; |
1478 | ++cctx_count; |
1148 | New (0, cctx, 1, coro_cctx); |
1479 | New (0, cctx, 1, coro_cctx); |
… | |
… | |
1154 | return cctx; |
1485 | return cctx; |
1155 | } |
1486 | } |
1156 | |
1487 | |
1157 | /* create a new cctx only suitable as source */ |
1488 | /* create a new cctx only suitable as source */ |
1158 | static coro_cctx * |
1489 | static coro_cctx * |
1159 | cctx_new_empty () |
1490 | cctx_new_empty (void) |
1160 | { |
1491 | { |
1161 | coro_cctx *cctx = cctx_new (); |
1492 | coro_cctx *cctx = cctx_new (); |
1162 | |
1493 | |
1163 | cctx->sptr = 0; |
1494 | cctx->sptr = 0; |
1164 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
1495 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
… | |
… | |
1166 | return cctx; |
1497 | return cctx; |
1167 | } |
1498 | } |
1168 | |
1499 | |
1169 | /* create a new cctx suitable as destination/running a perl interpreter */ |
1500 | /* create a new cctx suitable as destination/running a perl interpreter */ |
1170 | static coro_cctx * |
1501 | static coro_cctx * |
1171 | cctx_new_run () |
1502 | cctx_new_run (void) |
1172 | { |
1503 | { |
1173 | coro_cctx *cctx = cctx_new (); |
1504 | coro_cctx *cctx = cctx_new (); |
1174 | void *stack_start; |
1505 | void *stack_start; |
1175 | size_t stack_size; |
1506 | size_t stack_size; |
1176 | |
1507 | |
1177 | #if HAVE_MMAP |
1508 | #if HAVE_MMAP |
1178 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1509 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1179 | /* mmap supposedly does allocate-on-write for us */ |
1510 | /* mmap supposedly does allocate-on-write for us */ |
1180 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1511 | cctx->sptr = mmap (0, cctx->ssize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS, -1, 0); |
1181 | |
1512 | |
1182 | if (cctx->sptr != (void *)-1) |
1513 | if (cctx->sptr != (void *)-1) |
1183 | { |
1514 | { |
1184 | #if CORO_STACKGUARD |
1515 | #if CORO_STACKGUARD |
1185 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1516 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
… | |
… | |
1217 | cctx_destroy (coro_cctx *cctx) |
1548 | cctx_destroy (coro_cctx *cctx) |
1218 | { |
1549 | { |
1219 | if (!cctx) |
1550 | if (!cctx) |
1220 | return; |
1551 | return; |
1221 | |
1552 | |
|
|
1553 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); |
|
|
1554 | |
1222 | --cctx_count; |
1555 | --cctx_count; |
1223 | coro_destroy (&cctx->cctx); |
1556 | coro_destroy (&cctx->cctx); |
1224 | |
1557 | |
1225 | /* coro_transfer creates new, empty cctx's */ |
1558 | /* coro_transfer creates new, empty cctx's */ |
1226 | if (cctx->sptr) |
1559 | if (cctx->sptr) |
… | |
… | |
1244 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1577 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1245 | |
1578 | |
1246 | static coro_cctx * |
1579 | static coro_cctx * |
1247 | cctx_get (pTHX) |
1580 | cctx_get (pTHX) |
1248 | { |
1581 | { |
1249 | while (expect_true (cctx_first)) |
1582 | while (ecb_expect_true (cctx_first)) |
1250 | { |
1583 | { |
1251 | coro_cctx *cctx = cctx_first; |
1584 | coro_cctx *cctx = cctx_first; |
1252 | cctx_first = cctx->next; |
1585 | cctx_first = cctx->next; |
1253 | --cctx_idle; |
1586 | --cctx_idle; |
1254 | |
1587 | |
1255 | if (expect_true (!CCTX_EXPIRED (cctx))) |
1588 | if (ecb_expect_true (!CCTX_EXPIRED (cctx))) |
1256 | return cctx; |
1589 | return cctx; |
1257 | |
1590 | |
1258 | cctx_destroy (cctx); |
1591 | cctx_destroy (cctx); |
1259 | } |
1592 | } |
1260 | |
1593 | |
… | |
… | |
1265 | cctx_put (coro_cctx *cctx) |
1598 | cctx_put (coro_cctx *cctx) |
1266 | { |
1599 | { |
1267 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1600 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1268 | |
1601 | |
1269 | /* free another cctx if overlimit */ |
1602 | /* free another cctx if overlimit */ |
1270 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1603 | if (ecb_expect_false (cctx_idle >= cctx_max_idle)) |
1271 | { |
1604 | { |
1272 | coro_cctx *first = cctx_first; |
1605 | coro_cctx *first = cctx_first; |
1273 | cctx_first = first->next; |
1606 | cctx_first = first->next; |
1274 | --cctx_idle; |
1607 | --cctx_idle; |
1275 | |
1608 | |
… | |
… | |
1286 | static void |
1619 | static void |
1287 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1620 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1288 | { |
1621 | { |
1289 | /* TODO: throwing up here is considered harmful */ |
1622 | /* TODO: throwing up here is considered harmful */ |
1290 | |
1623 | |
1291 | if (expect_true (prev != next)) |
1624 | if (ecb_expect_true (prev != next)) |
1292 | { |
1625 | { |
1293 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1626 | if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1294 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1627 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1295 | |
1628 | |
1296 | if (expect_false (next->flags & CF_RUNNING)) |
1629 | if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED))) |
1297 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
|
|
1298 | |
|
|
1299 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1300 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
1630 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1301 | |
1631 | |
1302 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1632 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1303 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1633 | if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING)) |
1304 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1634 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1305 | #endif |
1635 | #endif |
1306 | } |
1636 | } |
1307 | } |
1637 | } |
1308 | |
1638 | |
1309 | /* always use the TRANSFER macro */ |
1639 | /* always use the TRANSFER macro */ |
1310 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1640 | static void ecb_noinline /* noinline so we have a fixed stackframe */ |
1311 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1641 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1312 | { |
1642 | { |
1313 | dSTACKLEVEL; |
1643 | dSTACKLEVEL; |
1314 | |
1644 | |
1315 | /* sometimes transfer is only called to set idle_sp */ |
1645 | /* sometimes transfer is only called to set idle_sp */ |
1316 | if (expect_false (!next)) |
1646 | if (ecb_expect_false (!prev)) |
1317 | { |
1647 | { |
1318 | ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; |
1648 | cctx_current->idle_sp = STACKLEVEL; |
1319 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1649 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1320 | } |
1650 | } |
1321 | else if (expect_true (prev != next)) |
1651 | else if (ecb_expect_true (prev != next)) |
1322 | { |
1652 | { |
1323 | coro_cctx *prev__cctx; |
1653 | coro_cctx *cctx_prev; |
1324 | |
1654 | |
1325 | if (expect_false (prev->flags & CF_NEW)) |
1655 | if (ecb_expect_false (prev->flags & CF_NEW)) |
1326 | { |
1656 | { |
1327 | /* create a new empty/source context */ |
1657 | /* create a new empty/source context */ |
1328 | prev->cctx = cctx_new_empty (); |
|
|
1329 | prev->flags &= ~CF_NEW; |
1658 | prev->flags &= ~CF_NEW; |
1330 | prev->flags |= CF_RUNNING; |
1659 | prev->flags |= CF_RUNNING; |
1331 | } |
1660 | } |
1332 | |
1661 | |
1333 | prev->flags &= ~CF_RUNNING; |
1662 | prev->flags &= ~CF_RUNNING; |
1334 | next->flags |= CF_RUNNING; |
1663 | next->flags |= CF_RUNNING; |
1335 | |
1664 | |
1336 | /* first get rid of the old state */ |
1665 | /* first get rid of the old state */ |
1337 | save_perl (aTHX_ prev); |
1666 | save_perl (aTHX_ prev); |
1338 | |
1667 | |
1339 | if (expect_false (next->flags & CF_NEW)) |
1668 | if (ecb_expect_false (next->flags & CF_NEW)) |
1340 | { |
1669 | { |
1341 | /* need to start coroutine */ |
1670 | /* need to start coroutine */ |
1342 | next->flags &= ~CF_NEW; |
1671 | next->flags &= ~CF_NEW; |
1343 | /* setup coroutine call */ |
1672 | /* setup coroutine call */ |
1344 | coro_setup (aTHX_ next); |
1673 | init_perl (aTHX_ next); |
1345 | } |
1674 | } |
1346 | else |
1675 | else |
1347 | load_perl (aTHX_ next); |
1676 | load_perl (aTHX_ next); |
1348 | |
1677 | |
1349 | prev__cctx = prev->cctx; |
|
|
1350 | |
|
|
1351 | /* possibly untie and reuse the cctx */ |
1678 | /* possibly untie and reuse the cctx */ |
1352 | if (expect_true ( |
1679 | if (ecb_expect_true ( |
1353 | prev__cctx->idle_sp == (void *)stacklevel |
1680 | cctx_current->idle_sp == STACKLEVEL |
1354 | && !(prev__cctx->flags & CC_TRACE) |
1681 | && !(cctx_current->flags & CC_TRACE) |
1355 | && !force_cctx |
1682 | && !force_cctx |
1356 | )) |
1683 | )) |
1357 | { |
1684 | { |
1358 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1685 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1359 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1686 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1360 | |
1687 | |
1361 | prev->cctx = 0; |
|
|
1362 | |
|
|
1363 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1688 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1364 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1689 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1365 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
1690 | if (ecb_expect_false (CCTX_EXPIRED (cctx_current))) |
1366 | if (!next->cctx) |
1691 | if (ecb_expect_true (!next->cctx)) |
1367 | next->cctx = cctx_get (aTHX); |
1692 | next->cctx = cctx_get (aTHX); |
1368 | |
1693 | |
1369 | cctx_put (prev__cctx); |
1694 | cctx_put (cctx_current); |
1370 | } |
1695 | } |
|
|
1696 | else |
|
|
1697 | prev->cctx = cctx_current; |
1371 | |
1698 | |
1372 | ++next->usecount; |
1699 | ++next->usecount; |
1373 | |
1700 | |
1374 | if (expect_true (!next->cctx)) |
1701 | cctx_prev = cctx_current; |
1375 | next->cctx = cctx_get (aTHX); |
1702 | cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1376 | |
1703 | |
1377 | if (expect_false (prev__cctx != next->cctx)) |
1704 | next->cctx = 0; |
|
|
1705 | |
|
|
1706 | if (ecb_expect_false (cctx_prev != cctx_current)) |
1378 | { |
1707 | { |
1379 | prev__cctx->top_env = PL_top_env; |
1708 | cctx_prev->top_env = PL_top_env; |
1380 | PL_top_env = next->cctx->top_env; |
1709 | PL_top_env = cctx_current->top_env; |
1381 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1710 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1382 | } |
1711 | } |
1383 | |
1712 | |
1384 | transfer_tail (aTHX); |
1713 | transfer_tail (aTHX); |
1385 | } |
1714 | } |
1386 | } |
1715 | } |
… | |
… | |
1388 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1717 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1389 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1718 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1390 | |
1719 | |
1391 | /** high level stuff ********************************************************/ |
1720 | /** high level stuff ********************************************************/ |
1392 | |
1721 | |
|
|
1722 | /* this function is actually Coro, not Coro::State, but we call it from here */ |
|
|
1723 | /* because it is convenient - but it hasn't been declared yet for that reason */ |
1393 | static int |
1724 | static void |
|
|
1725 | coro_call_on_destroy (pTHX_ struct coro *coro); |
|
|
1726 | |
|
|
1727 | static void |
1394 | coro_state_destroy (pTHX_ struct coro *coro) |
1728 | coro_state_destroy (pTHX_ struct coro *coro) |
1395 | { |
1729 | { |
1396 | if (coro->flags & CF_DESTROYED) |
1730 | if (coro->flags & CF_ZOMBIE) |
1397 | return 0; |
1731 | return; |
1398 | |
1732 | |
1399 | if (coro->on_destroy) |
|
|
1400 | coro->on_destroy (aTHX_ coro); |
1733 | slf_destroy (aTHX_ coro); |
1401 | |
1734 | |
1402 | coro->flags |= CF_DESTROYED; |
1735 | coro->flags |= CF_ZOMBIE; |
1403 | |
1736 | |
1404 | if (coro->flags & CF_READY) |
1737 | if (coro->flags & CF_READY) |
1405 | { |
1738 | { |
1406 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1739 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1407 | /* alternative: look through all ready queues and remove the coro */ |
1740 | /* alternative: look through all ready queues and remove the coro */ |
1408 | --coro_nready; |
1741 | --coro_nready; |
1409 | } |
1742 | } |
1410 | else |
1743 | else |
1411 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1744 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1412 | |
1745 | |
1413 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
1414 | { |
|
|
1415 | struct coro temp; |
|
|
1416 | |
|
|
1417 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
|
|
1418 | |
|
|
1419 | save_perl (aTHX_ &temp); |
|
|
1420 | load_perl (aTHX_ coro); |
|
|
1421 | |
|
|
1422 | coro_destruct (aTHX_ coro); |
|
|
1423 | |
|
|
1424 | load_perl (aTHX_ &temp); |
|
|
1425 | |
|
|
1426 | coro->slot = 0; |
|
|
1427 | } |
|
|
1428 | |
|
|
1429 | cctx_destroy (coro->cctx); |
|
|
1430 | SvREFCNT_dec (coro->args); |
|
|
1431 | |
|
|
1432 | if (coro->next) coro->next->prev = coro->prev; |
1746 | if (coro->next) coro->next->prev = coro->prev; |
1433 | if (coro->prev) coro->prev->next = coro->next; |
1747 | if (coro->prev) coro->prev->next = coro->next; |
1434 | if (coro == coro_first) coro_first = coro->next; |
1748 | if (coro == coro_first) coro_first = coro->next; |
1435 | |
1749 | |
1436 | return 1; |
1750 | if (coro->mainstack |
|
|
1751 | && coro->mainstack != main_mainstack |
|
|
1752 | && coro->slot |
|
|
1753 | && !PL_dirty) |
|
|
1754 | destroy_perl (aTHX_ coro); |
|
|
1755 | |
|
|
1756 | cctx_destroy (coro->cctx); |
|
|
1757 | SvREFCNT_dec (coro->startcv); |
|
|
1758 | SvREFCNT_dec (coro->args); |
|
|
1759 | SvREFCNT_dec (coro->swap_sv); |
|
|
1760 | SvREFCNT_dec (CORO_THROW); |
|
|
1761 | |
|
|
1762 | coro_call_on_destroy (aTHX_ coro); |
|
|
1763 | |
|
|
1764 | /* more destruction mayhem in coro_state_free */ |
1437 | } |
1765 | } |
1438 | |
1766 | |
1439 | static int |
1767 | static int |
1440 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1768 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1441 | { |
1769 | { |
1442 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1770 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1443 | mg->mg_ptr = 0; |
1771 | mg->mg_ptr = 0; |
1444 | |
1772 | |
1445 | coro->hv = 0; |
|
|
1446 | |
|
|
1447 | if (--coro->refcnt < 0) |
|
|
1448 | { |
|
|
1449 | coro_state_destroy (aTHX_ coro); |
1773 | coro_state_destroy (aTHX_ coro); |
|
|
1774 | SvREFCNT_dec (coro->on_destroy); |
|
|
1775 | SvREFCNT_dec (coro->status); |
|
|
1776 | |
1450 | Safefree (coro); |
1777 | Safefree (coro); |
1451 | } |
|
|
1452 | |
1778 | |
1453 | return 0; |
1779 | return 0; |
1454 | } |
1780 | } |
1455 | |
1781 | |
1456 | static int |
1782 | static int ecb_cold |
1457 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1783 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1458 | { |
1784 | { |
1459 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1785 | /* called when perl clones the current process the slow way (windows process emulation) */ |
1460 | |
1786 | /* WE SIMply nuke the pointers in the copy, causing perl to croak */ |
1461 | ++coro->refcnt; |
1787 | mg->mg_ptr = 0; |
|
|
1788 | mg->mg_virtual = 0; |
1462 | |
1789 | |
1463 | return 0; |
1790 | return 0; |
1464 | } |
1791 | } |
1465 | |
1792 | |
1466 | static MGVTBL coro_state_vtbl = { |
1793 | static MGVTBL coro_state_vtbl = { |
… | |
… | |
1491 | TRANSFER (ta, 1); |
1818 | TRANSFER (ta, 1); |
1492 | } |
1819 | } |
1493 | |
1820 | |
1494 | /** Coro ********************************************************************/ |
1821 | /** Coro ********************************************************************/ |
1495 | |
1822 | |
1496 | INLINE void |
1823 | ecb_inline void |
1497 | coro_enq (pTHX_ struct coro *coro) |
1824 | coro_enq (pTHX_ struct coro *coro) |
1498 | { |
1825 | { |
1499 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1826 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1500 | } |
|
|
1501 | |
1827 | |
1502 | INLINE SV * |
1828 | SvREFCNT_inc_NN (coro->hv); |
|
|
1829 | |
|
|
1830 | coro->next_ready = 0; |
|
|
1831 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1832 | ready [1] = coro; |
|
|
1833 | } |
|
|
1834 | |
|
|
1835 | ecb_inline struct coro * |
1503 | coro_deq (pTHX) |
1836 | coro_deq (pTHX) |
1504 | { |
1837 | { |
1505 | int prio; |
1838 | int prio; |
1506 | |
1839 | |
1507 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1840 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
1508 | if (AvFILLp (coro_ready [prio]) >= 0) |
1841 | { |
1509 | return av_shift (coro_ready [prio]); |
1842 | struct coro **ready = coro_ready [prio]; |
|
|
1843 | |
|
|
1844 | if (ready [0]) |
|
|
1845 | { |
|
|
1846 | struct coro *coro = ready [0]; |
|
|
1847 | ready [0] = coro->next_ready; |
|
|
1848 | return coro; |
|
|
1849 | } |
|
|
1850 | } |
1510 | |
1851 | |
1511 | return 0; |
1852 | return 0; |
|
|
1853 | } |
|
|
1854 | |
|
|
1855 | static void |
|
|
1856 | invoke_sv_ready_hook_helper (void) |
|
|
1857 | { |
|
|
1858 | dTHX; |
|
|
1859 | dSP; |
|
|
1860 | |
|
|
1861 | ENTER; |
|
|
1862 | SAVETMPS; |
|
|
1863 | |
|
|
1864 | PUSHMARK (SP); |
|
|
1865 | PUTBACK; |
|
|
1866 | call_sv (coro_readyhook, G_VOID | G_DISCARD); |
|
|
1867 | |
|
|
1868 | FREETMPS; |
|
|
1869 | LEAVE; |
1512 | } |
1870 | } |
1513 | |
1871 | |
1514 | static int |
1872 | static int |
1515 | api_ready (pTHX_ SV *coro_sv) |
1873 | api_ready (pTHX_ SV *coro_sv) |
1516 | { |
1874 | { |
1517 | struct coro *coro; |
|
|
1518 | SV *sv_hook; |
|
|
1519 | void (*xs_hook)(void); |
|
|
1520 | |
|
|
1521 | if (SvROK (coro_sv)) |
|
|
1522 | coro_sv = SvRV (coro_sv); |
|
|
1523 | |
|
|
1524 | coro = SvSTATE (coro_sv); |
1875 | struct coro *coro = SvSTATE (coro_sv); |
1525 | |
1876 | |
1526 | if (coro->flags & CF_READY) |
1877 | if (coro->flags & CF_READY) |
1527 | return 0; |
1878 | return 0; |
1528 | |
1879 | |
1529 | coro->flags |= CF_READY; |
1880 | coro->flags |= CF_READY; |
1530 | |
1881 | |
1531 | sv_hook = coro_nready ? 0 : coro_readyhook; |
|
|
1532 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1533 | |
|
|
1534 | coro_enq (aTHX_ coro); |
1882 | coro_enq (aTHX_ coro); |
1535 | ++coro_nready; |
|
|
1536 | |
1883 | |
1537 | if (sv_hook) |
1884 | if (!coro_nready++) |
1538 | { |
1885 | if (coroapi.readyhook) |
1539 | dSP; |
1886 | coroapi.readyhook (); |
1540 | |
|
|
1541 | ENTER; |
|
|
1542 | SAVETMPS; |
|
|
1543 | |
|
|
1544 | PUSHMARK (SP); |
|
|
1545 | PUTBACK; |
|
|
1546 | call_sv (sv_hook, G_DISCARD); |
|
|
1547 | SPAGAIN; |
|
|
1548 | |
|
|
1549 | FREETMPS; |
|
|
1550 | LEAVE; |
|
|
1551 | } |
|
|
1552 | |
|
|
1553 | if (xs_hook) |
|
|
1554 | xs_hook (); |
|
|
1555 | |
1887 | |
1556 | return 1; |
1888 | return 1; |
1557 | } |
1889 | } |
1558 | |
1890 | |
1559 | static int |
1891 | static int |
1560 | api_is_ready (pTHX_ SV *coro_sv) |
1892 | api_is_ready (pTHX_ SV *coro_sv) |
1561 | { |
1893 | { |
1562 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1894 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1563 | } |
1895 | } |
1564 | |
1896 | |
1565 | INLINE void |
1897 | /* expects to own a reference to next->hv */ |
|
|
1898 | ecb_inline void |
1566 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1899 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1567 | { |
1900 | { |
1568 | SV *prev_sv, *next_sv; |
|
|
1569 | |
|
|
1570 | for (;;) |
|
|
1571 | { |
|
|
1572 | next_sv = coro_deq (aTHX); |
|
|
1573 | |
|
|
1574 | /* nothing to schedule: call the idle handler */ |
|
|
1575 | if (expect_false (!next_sv)) |
|
|
1576 | { |
|
|
1577 | dSP; |
|
|
1578 | |
|
|
1579 | ENTER; |
|
|
1580 | SAVETMPS; |
|
|
1581 | |
|
|
1582 | PUSHMARK (SP); |
|
|
1583 | PUTBACK; |
|
|
1584 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1585 | SPAGAIN; |
|
|
1586 | |
|
|
1587 | FREETMPS; |
|
|
1588 | LEAVE; |
|
|
1589 | continue; |
|
|
1590 | } |
|
|
1591 | |
|
|
1592 | ta->next = SvSTATE_hv (next_sv); |
|
|
1593 | |
|
|
1594 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1595 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1596 | { |
|
|
1597 | SvREFCNT_dec (next_sv); |
|
|
1598 | /* coro_nready has already been taken care of by destroy */ |
|
|
1599 | continue; |
|
|
1600 | } |
|
|
1601 | |
|
|
1602 | --coro_nready; |
|
|
1603 | break; |
|
|
1604 | } |
|
|
1605 | |
|
|
1606 | /* free this only after the transfer */ |
|
|
1607 | prev_sv = SvRV (coro_current); |
1901 | SV *prev_sv = SvRV (coro_current); |
|
|
1902 | |
1608 | ta->prev = SvSTATE_hv (prev_sv); |
1903 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1904 | ta->next = next; |
|
|
1905 | |
1609 | TRANSFER_CHECK (*ta); |
1906 | TRANSFER_CHECK (*ta); |
1610 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1907 | |
1611 | ta->next->flags &= ~CF_READY; |
|
|
1612 | SvRV_set (coro_current, next_sv); |
1908 | SvRV_set (coro_current, (SV *)next->hv); |
1613 | |
1909 | |
1614 | free_coro_mortal (aTHX); |
1910 | free_coro_mortal (aTHX); |
1615 | coro_mortal = prev_sv; |
1911 | coro_mortal = prev_sv; |
1616 | } |
1912 | } |
1617 | |
1913 | |
1618 | INLINE void |
1914 | static void |
|
|
1915 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1916 | { |
|
|
1917 | for (;;) |
|
|
1918 | { |
|
|
1919 | struct coro *next = coro_deq (aTHX); |
|
|
1920 | |
|
|
1921 | if (ecb_expect_true (next)) |
|
|
1922 | { |
|
|
1923 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1924 | if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED))) |
|
|
1925 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1926 | else |
|
|
1927 | { |
|
|
1928 | next->flags &= ~CF_READY; |
|
|
1929 | --coro_nready; |
|
|
1930 | |
|
|
1931 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1932 | break; |
|
|
1933 | } |
|
|
1934 | } |
|
|
1935 | else |
|
|
1936 | { |
|
|
1937 | /* nothing to schedule: call the idle handler */ |
|
|
1938 | if (SvROK (sv_idle) |
|
|
1939 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1940 | { |
|
|
1941 | if (SvRV (sv_idle) == SvRV (coro_current)) |
|
|
1942 | croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught"); |
|
|
1943 | |
|
|
1944 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1945 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1946 | --coro_nready; |
|
|
1947 | } |
|
|
1948 | else |
|
|
1949 | { |
|
|
1950 | /* TODO: deprecated, remove, cannot work reliably *//*D*/ |
|
|
1951 | dSP; |
|
|
1952 | |
|
|
1953 | ENTER; |
|
|
1954 | SAVETMPS; |
|
|
1955 | |
|
|
1956 | PUSHMARK (SP); |
|
|
1957 | PUTBACK; |
|
|
1958 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1959 | |
|
|
1960 | FREETMPS; |
|
|
1961 | LEAVE; |
|
|
1962 | } |
|
|
1963 | } |
|
|
1964 | } |
|
|
1965 | } |
|
|
1966 | |
|
|
1967 | ecb_inline void |
1619 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1968 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1620 | { |
1969 | { |
1621 | api_ready (aTHX_ coro_current); |
1970 | api_ready (aTHX_ coro_current); |
1622 | prepare_schedule (aTHX_ ta); |
1971 | prepare_schedule (aTHX_ ta); |
1623 | } |
1972 | } |
1624 | |
1973 | |
1625 | INLINE void |
1974 | ecb_inline void |
1626 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
1975 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
1627 | { |
1976 | { |
1628 | SV *prev = SvRV (coro_current); |
1977 | SV *prev = SvRV (coro_current); |
1629 | |
1978 | |
1630 | if (coro_nready) |
1979 | if (coro_nready) |
… | |
… | |
1643 | |
1992 | |
1644 | prepare_schedule (aTHX_ &ta); |
1993 | prepare_schedule (aTHX_ &ta); |
1645 | TRANSFER (ta, 1); |
1994 | TRANSFER (ta, 1); |
1646 | } |
1995 | } |
1647 | |
1996 | |
|
|
1997 | static void |
|
|
1998 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1999 | { |
|
|
2000 | struct coro_transfer_args ta; |
|
|
2001 | struct coro *next = SvSTATE (coro_sv); |
|
|
2002 | |
|
|
2003 | SvREFCNT_inc_NN (coro_sv); |
|
|
2004 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
2005 | } |
|
|
2006 | |
1648 | static int |
2007 | static int |
1649 | api_cede (pTHX) |
2008 | api_cede (pTHX) |
1650 | { |
2009 | { |
1651 | struct coro_transfer_args ta; |
2010 | struct coro_transfer_args ta; |
1652 | |
2011 | |
1653 | prepare_cede (aTHX_ &ta); |
2012 | prepare_cede (aTHX_ &ta); |
1654 | |
2013 | |
1655 | if (expect_true (ta.prev != ta.next)) |
2014 | if (ecb_expect_true (ta.prev != ta.next)) |
1656 | { |
2015 | { |
1657 | TRANSFER (ta, 1); |
2016 | TRANSFER (ta, 1); |
1658 | return 1; |
2017 | return 1; |
1659 | } |
2018 | } |
1660 | else |
2019 | else |
… | |
… | |
1679 | static void |
2038 | static void |
1680 | api_trace (pTHX_ SV *coro_sv, int flags) |
2039 | api_trace (pTHX_ SV *coro_sv, int flags) |
1681 | { |
2040 | { |
1682 | struct coro *coro = SvSTATE (coro_sv); |
2041 | struct coro *coro = SvSTATE (coro_sv); |
1683 | |
2042 | |
|
|
2043 | if (coro->flags & CF_RUNNING) |
|
|
2044 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
2045 | |
1684 | if (flags & CC_TRACE) |
2046 | if (flags & CC_TRACE) |
1685 | { |
2047 | { |
1686 | if (!coro->cctx) |
2048 | if (!coro->cctx) |
1687 | coro->cctx = cctx_new_run (); |
2049 | coro->cctx = cctx_new_run (); |
1688 | else if (!(coro->cctx->flags & CC_TRACE)) |
2050 | else if (!(coro->cctx->flags & CC_TRACE)) |
1689 | croak ("cannot enable tracing on coroutine with custom stack,"); |
2051 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1690 | |
2052 | |
1691 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
2053 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1692 | } |
2054 | } |
1693 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
2055 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1694 | { |
2056 | { |
… | |
… | |
1699 | else |
2061 | else |
1700 | coro->slot->runops = RUNOPS_DEFAULT; |
2062 | coro->slot->runops = RUNOPS_DEFAULT; |
1701 | } |
2063 | } |
1702 | } |
2064 | } |
1703 | |
2065 | |
|
|
2066 | static void |
|
|
2067 | coro_push_av (pTHX_ AV *av, I32 gimme_v) |
|
|
2068 | { |
|
|
2069 | if (AvFILLp (av) >= 0 && gimme_v != G_VOID) |
|
|
2070 | { |
|
|
2071 | dSP; |
|
|
2072 | |
|
|
2073 | if (gimme_v == G_SCALAR) |
|
|
2074 | XPUSHs (AvARRAY (av)[AvFILLp (av)]); |
|
|
2075 | else |
|
|
2076 | { |
|
|
2077 | int i; |
|
|
2078 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2079 | |
|
|
2080 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2081 | PUSHs (AvARRAY (av)[i]); |
|
|
2082 | } |
|
|
2083 | |
|
|
2084 | PUTBACK; |
|
|
2085 | } |
|
|
2086 | } |
|
|
2087 | |
|
|
2088 | static void |
|
|
2089 | coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb) |
|
|
2090 | { |
|
|
2091 | if (!coro->on_destroy) |
|
|
2092 | coro->on_destroy = newAV (); |
|
|
2093 | |
|
|
2094 | av_push (coro->on_destroy, cb); |
|
|
2095 | } |
|
|
2096 | |
|
|
2097 | static void |
|
|
2098 | slf_destroy_join (pTHX_ struct CoroSLF *frame) |
|
|
2099 | { |
|
|
2100 | SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv); |
|
|
2101 | } |
|
|
2102 | |
|
|
2103 | static int |
|
|
2104 | slf_check_join (pTHX_ struct CoroSLF *frame) |
|
|
2105 | { |
|
|
2106 | struct coro *coro = (struct coro *)frame->data; |
|
|
2107 | |
|
|
2108 | if (!coro->status) |
|
|
2109 | return 1; |
|
|
2110 | |
|
|
2111 | frame->destroy = 0; |
|
|
2112 | |
|
|
2113 | coro_push_av (aTHX_ coro->status, GIMME_V); |
|
|
2114 | |
|
|
2115 | SvREFCNT_dec ((SV *)coro->hv); |
|
|
2116 | |
|
|
2117 | return 0; |
|
|
2118 | } |
|
|
2119 | |
|
|
2120 | static void |
|
|
2121 | slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2122 | { |
|
|
2123 | struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef); |
|
|
2124 | |
|
|
2125 | if (items > 1) |
|
|
2126 | croak ("join called with too many arguments"); |
|
|
2127 | |
|
|
2128 | if (coro->status) |
|
|
2129 | frame->prepare = prepare_nop; |
|
|
2130 | else |
|
|
2131 | { |
|
|
2132 | coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current))); |
|
|
2133 | frame->prepare = prepare_schedule; |
|
|
2134 | } |
|
|
2135 | |
|
|
2136 | frame->check = slf_check_join; |
|
|
2137 | frame->destroy = slf_destroy_join; |
|
|
2138 | frame->data = (void *)coro; |
|
|
2139 | SvREFCNT_inc (coro->hv); |
|
|
2140 | } |
|
|
2141 | |
|
|
2142 | static void |
|
|
2143 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
2144 | { |
|
|
2145 | AV *od = coro->on_destroy; |
|
|
2146 | |
|
|
2147 | if (!od) |
|
|
2148 | return; |
|
|
2149 | |
|
|
2150 | while (AvFILLp (od) >= 0) |
|
|
2151 | { |
|
|
2152 | SV *cb = sv_2mortal (av_pop (od)); |
|
|
2153 | |
|
|
2154 | /* coro hv's (and only hv's at the moment) are supported as well */ |
|
|
2155 | if (SvSTATEhv_p (aTHX_ cb)) |
|
|
2156 | api_ready (aTHX_ cb); |
|
|
2157 | else |
|
|
2158 | { |
|
|
2159 | dSP; /* don't disturb outer sp */ |
|
|
2160 | PUSHMARK (SP); |
|
|
2161 | |
|
|
2162 | if (coro->status) |
|
|
2163 | { |
|
|
2164 | PUTBACK; |
|
|
2165 | coro_push_av (aTHX_ coro->status, G_ARRAY); |
|
|
2166 | SPAGAIN; |
|
|
2167 | } |
|
|
2168 | |
|
|
2169 | PUTBACK; |
|
|
2170 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2171 | } |
|
|
2172 | } |
|
|
2173 | } |
|
|
2174 | |
|
|
2175 | static void |
|
|
2176 | coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2177 | { |
|
|
2178 | AV *av; |
|
|
2179 | |
|
|
2180 | if (coro->status) |
|
|
2181 | { |
|
|
2182 | av = coro->status; |
|
|
2183 | av_clear (av); |
|
|
2184 | } |
|
|
2185 | else |
|
|
2186 | av = coro->status = newAV (); |
|
|
2187 | |
|
|
2188 | /* items are actually not so common, so optimise for this case */ |
|
|
2189 | if (items) |
|
|
2190 | { |
|
|
2191 | int i; |
|
|
2192 | |
|
|
2193 | av_extend (av, items - 1); |
|
|
2194 | |
|
|
2195 | for (i = 0; i < items; ++i) |
|
|
2196 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
2197 | } |
|
|
2198 | } |
|
|
2199 | |
|
|
2200 | static void |
|
|
2201 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
|
|
2202 | { |
|
|
2203 | av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */ |
|
|
2204 | api_ready (aTHX_ sv_manager); |
|
|
2205 | |
|
|
2206 | frame->prepare = prepare_schedule; |
|
|
2207 | frame->check = slf_check_repeat; |
|
|
2208 | |
|
|
2209 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
2210 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
2211 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2212 | } |
|
|
2213 | |
|
|
2214 | static void |
|
|
2215 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2216 | { |
|
|
2217 | HV *coro_hv = (HV *)SvRV (coro_current); |
|
|
2218 | |
|
|
2219 | coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items); |
|
|
2220 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2221 | } |
|
|
2222 | |
|
|
2223 | static void |
|
|
2224 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2225 | { |
|
|
2226 | HV *coro_hv; |
|
|
2227 | struct coro *coro; |
|
|
2228 | |
|
|
2229 | if (items <= 0) |
|
|
2230 | croak ("Coro::cancel called without coro object,"); |
|
|
2231 | |
|
|
2232 | coro = SvSTATE (arg [0]); |
|
|
2233 | coro_hv = coro->hv; |
|
|
2234 | |
|
|
2235 | coro_set_status (aTHX_ coro, arg + 1, items - 1); |
|
|
2236 | |
|
|
2237 | if (ecb_expect_false (coro->flags & CF_NOCANCEL)) |
|
|
2238 | { |
|
|
2239 | /* coro currently busy cancelling something, so just notify it */ |
|
|
2240 | coro->slf_frame.data = (void *)coro; |
|
|
2241 | |
|
|
2242 | frame->prepare = prepare_nop; |
|
|
2243 | frame->check = slf_check_nop; |
|
|
2244 | } |
|
|
2245 | else if (coro_hv == (HV *)SvRV (coro_current)) |
|
|
2246 | { |
|
|
2247 | /* cancelling the current coro is allowed, and equals terminate */ |
|
|
2248 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2249 | } |
|
|
2250 | else |
|
|
2251 | { |
|
|
2252 | struct coro *self = SvSTATE_current; |
|
|
2253 | |
|
|
2254 | /* otherwise we cancel directly, purely for speed reasons |
|
|
2255 | * unfortunately, this requires some magic trickery, as |
|
|
2256 | * somebody else could cancel us, so we have to fight the cancellation. |
|
|
2257 | * this is ugly, and hopefully fully worth the extra speed. |
|
|
2258 | * besides, I can't get the slow-but-safe version working... |
|
|
2259 | */ |
|
|
2260 | slf_frame.data = 0; |
|
|
2261 | self->flags |= CF_NOCANCEL; |
|
|
2262 | coro_state_destroy (aTHX_ coro); |
|
|
2263 | self->flags &= ~CF_NOCANCEL; |
|
|
2264 | |
|
|
2265 | if (slf_frame.data) |
|
|
2266 | { |
|
|
2267 | /* while we were busy we have been cancelled, so terminate */ |
|
|
2268 | slf_init_terminate_cancel_common (aTHX_ frame, self->hv); |
|
|
2269 | } |
|
|
2270 | else |
|
|
2271 | { |
|
|
2272 | frame->prepare = prepare_nop; |
|
|
2273 | frame->check = slf_check_nop; |
|
|
2274 | } |
|
|
2275 | } |
|
|
2276 | } |
|
|
2277 | |
|
|
2278 | static int |
|
|
2279 | slf_check_safe_cancel (pTHX_ struct CoroSLF *frame) |
|
|
2280 | { |
|
|
2281 | frame->prepare = 0; |
|
|
2282 | coro_unwind_stacks (aTHX); |
|
|
2283 | |
|
|
2284 | slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current)); |
|
|
2285 | |
|
|
2286 | return 1; |
|
|
2287 | } |
|
|
2288 | |
|
|
2289 | static int |
|
|
2290 | safe_cancel (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2291 | { |
|
|
2292 | if (coro->cctx) |
|
|
2293 | croak ("coro inside C callback, unable to cancel at this time, caught"); |
|
|
2294 | |
|
|
2295 | if (coro->flags & CF_NEW) |
|
|
2296 | { |
|
|
2297 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2298 | coro_state_destroy (aTHX_ coro); |
|
|
2299 | } |
|
|
2300 | else |
|
|
2301 | { |
|
|
2302 | if (!coro->slf_frame.prepare) |
|
|
2303 | croak ("coro outside an SLF function, unable to cancel at this time, caught"); |
|
|
2304 | |
|
|
2305 | slf_destroy (aTHX_ coro); |
|
|
2306 | |
|
|
2307 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2308 | coro->slf_frame.prepare = prepare_nop; |
|
|
2309 | coro->slf_frame.check = slf_check_safe_cancel; |
|
|
2310 | |
|
|
2311 | api_ready (aTHX_ (SV *)coro->hv); |
|
|
2312 | } |
|
|
2313 | |
|
|
2314 | return 1; |
|
|
2315 | } |
|
|
2316 | |
|
|
2317 | /*****************************************************************************/ |
|
|
2318 | /* async pool handler */ |
|
|
2319 | |
|
|
2320 | static int |
|
|
2321 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
2322 | { |
|
|
2323 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2324 | struct coro *coro = (struct coro *)frame->data; |
|
|
2325 | |
|
|
2326 | if (!coro->invoke_cb) |
|
|
2327 | return 1; /* loop till we have invoke */ |
|
|
2328 | else |
|
|
2329 | { |
|
|
2330 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2331 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2332 | |
|
|
2333 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2334 | |
|
|
2335 | { |
|
|
2336 | dSP; |
|
|
2337 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
2338 | PUTBACK; |
|
|
2339 | } |
|
|
2340 | |
|
|
2341 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
2342 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
2343 | coro->invoke_av = 0; |
|
|
2344 | |
|
|
2345 | return 0; |
|
|
2346 | } |
|
|
2347 | } |
|
|
2348 | |
|
|
2349 | static void |
|
|
2350 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2351 | { |
|
|
2352 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2353 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2354 | |
|
|
2355 | if (ecb_expect_true (coro->saved_deffh)) |
|
|
2356 | { |
|
|
2357 | /* subsequent iteration */ |
|
|
2358 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2359 | coro->saved_deffh = 0; |
|
|
2360 | |
|
|
2361 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2362 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2363 | { |
|
|
2364 | slf_init_terminate_cancel_common (aTHX_ frame, hv); |
|
|
2365 | return; |
|
|
2366 | } |
|
|
2367 | else |
|
|
2368 | { |
|
|
2369 | av_clear (GvAV (PL_defgv)); |
|
|
2370 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
2371 | |
|
|
2372 | coro->prio = 0; |
|
|
2373 | |
|
|
2374 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2375 | api_trace (aTHX_ coro_current, 0); |
|
|
2376 | |
|
|
2377 | frame->prepare = prepare_schedule; |
|
|
2378 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2379 | } |
|
|
2380 | } |
|
|
2381 | else |
|
|
2382 | { |
|
|
2383 | /* first iteration, simply fall through */ |
|
|
2384 | frame->prepare = prepare_nop; |
|
|
2385 | } |
|
|
2386 | |
|
|
2387 | frame->check = slf_check_pool_handler; |
|
|
2388 | frame->data = (void *)coro; |
|
|
2389 | } |
|
|
2390 | |
|
|
2391 | /*****************************************************************************/ |
|
|
2392 | /* rouse callback */ |
|
|
2393 | |
|
|
2394 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2395 | |
|
|
2396 | static void |
|
|
2397 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2398 | { |
|
|
2399 | dXSARGS; |
|
|
2400 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2401 | |
|
|
2402 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2403 | { |
|
|
2404 | /* first call, set args */ |
|
|
2405 | SV *coro = SvRV (data); |
|
|
2406 | AV *av = newAV (); |
|
|
2407 | |
|
|
2408 | SvRV_set (data, (SV *)av); |
|
|
2409 | |
|
|
2410 | /* better take a full copy of the arguments */ |
|
|
2411 | while (items--) |
|
|
2412 | av_store (av, items, newSVsv (ST (items))); |
|
|
2413 | |
|
|
2414 | api_ready (aTHX_ coro); |
|
|
2415 | SvREFCNT_dec (coro); |
|
|
2416 | } |
|
|
2417 | |
|
|
2418 | XSRETURN_EMPTY; |
|
|
2419 | } |
|
|
2420 | |
|
|
2421 | static int |
|
|
2422 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2423 | { |
|
|
2424 | SV *data = (SV *)frame->data; |
|
|
2425 | |
|
|
2426 | if (CORO_THROW) |
|
|
2427 | return 0; |
|
|
2428 | |
|
|
2429 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2430 | return 1; |
|
|
2431 | |
|
|
2432 | /* now push all results on the stack */ |
|
|
2433 | { |
|
|
2434 | dSP; |
|
|
2435 | AV *av = (AV *)SvRV (data); |
|
|
2436 | int i; |
|
|
2437 | |
|
|
2438 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2439 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2440 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2441 | |
|
|
2442 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2443 | AvFILLp (av) = -1; |
|
|
2444 | av_undef (av); |
|
|
2445 | |
|
|
2446 | PUTBACK; |
|
|
2447 | } |
|
|
2448 | |
|
|
2449 | return 0; |
|
|
2450 | } |
|
|
2451 | |
|
|
2452 | static void |
|
|
2453 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2454 | { |
|
|
2455 | SV *cb; |
|
|
2456 | |
|
|
2457 | if (items) |
|
|
2458 | cb = arg [0]; |
|
|
2459 | else |
|
|
2460 | { |
|
|
2461 | struct coro *coro = SvSTATE_current; |
|
|
2462 | |
|
|
2463 | if (!coro->rouse_cb) |
|
|
2464 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2465 | |
|
|
2466 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2467 | coro->rouse_cb = 0; |
|
|
2468 | } |
|
|
2469 | |
|
|
2470 | if (!SvROK (cb) |
|
|
2471 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2472 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2473 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2474 | |
|
|
2475 | { |
|
|
2476 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
|
|
2477 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2478 | |
|
|
2479 | frame->data = (void *)data; |
|
|
2480 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2481 | frame->check = slf_check_rouse_wait; |
|
|
2482 | } |
|
|
2483 | } |
|
|
2484 | |
|
|
2485 | static SV * |
|
|
2486 | coro_new_rouse_cb (pTHX) |
|
|
2487 | { |
|
|
2488 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2489 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2490 | SV *data = newRV_inc ((SV *)hv); |
|
|
2491 | SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2492 | |
|
|
2493 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2494 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2495 | |
|
|
2496 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2497 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2498 | |
|
|
2499 | return cb; |
|
|
2500 | } |
|
|
2501 | |
|
|
2502 | /*****************************************************************************/ |
|
|
2503 | /* schedule-like-function opcode (SLF) */ |
|
|
2504 | |
|
|
2505 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2506 | static const CV *slf_cv; |
|
|
2507 | static SV **slf_argv; |
|
|
2508 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2509 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2510 | |
|
|
2511 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2512 | /* recreate the stack frame as perl will on following calls */ |
|
|
2513 | /* since entersub cleared the stack */ |
|
|
2514 | static OP * |
|
|
2515 | pp_restore (pTHX) |
|
|
2516 | { |
|
|
2517 | int i; |
|
|
2518 | SV **SP = PL_stack_base + slf_ax; |
|
|
2519 | |
|
|
2520 | PUSHMARK (SP); |
|
|
2521 | |
|
|
2522 | EXTEND (SP, slf_argc + 1); |
|
|
2523 | |
|
|
2524 | for (i = 0; i < slf_argc; ++i) |
|
|
2525 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2526 | |
|
|
2527 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2528 | |
|
|
2529 | RETURNOP (slf_restore.op_first); |
|
|
2530 | } |
|
|
2531 | |
|
|
2532 | static void |
|
|
2533 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2534 | { |
|
|
2535 | SV **arg = (SV **)slf_frame.data; |
|
|
2536 | |
|
|
2537 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2538 | } |
|
|
2539 | |
|
|
2540 | static void |
|
|
2541 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2542 | { |
|
|
2543 | if (items != 2) |
|
|
2544 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2545 | |
|
|
2546 | frame->prepare = slf_prepare_transfer; |
|
|
2547 | frame->check = slf_check_nop; |
|
|
2548 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2549 | } |
|
|
2550 | |
|
|
2551 | static void |
|
|
2552 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2553 | { |
|
|
2554 | frame->prepare = prepare_schedule; |
|
|
2555 | frame->check = slf_check_nop; |
|
|
2556 | } |
|
|
2557 | |
|
|
2558 | static void |
|
|
2559 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2560 | { |
|
|
2561 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2562 | |
|
|
2563 | SvREFCNT_inc_NN (next->hv); |
|
|
2564 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2565 | } |
|
|
2566 | |
|
|
2567 | static void |
|
|
2568 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2569 | { |
|
|
2570 | if (!items) |
|
|
2571 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2572 | |
|
|
2573 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2574 | frame->prepare = slf_prepare_schedule_to; |
|
|
2575 | frame->check = slf_check_nop; |
|
|
2576 | } |
|
|
2577 | |
|
|
2578 | static void |
|
|
2579 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2580 | { |
|
|
2581 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2582 | |
|
|
2583 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2584 | } |
|
|
2585 | |
|
|
2586 | static void |
|
|
2587 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2588 | { |
|
|
2589 | frame->prepare = prepare_cede; |
|
|
2590 | frame->check = slf_check_nop; |
|
|
2591 | } |
|
|
2592 | |
|
|
2593 | static void |
|
|
2594 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2595 | { |
|
|
2596 | frame->prepare = prepare_cede_notself; |
|
|
2597 | frame->check = slf_check_nop; |
|
|
2598 | } |
|
|
2599 | |
|
|
2600 | /* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ |
|
|
2601 | static void |
|
|
2602 | slf_destroy (pTHX_ struct coro *coro) |
|
|
2603 | { |
|
|
2604 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
2605 | if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty) |
|
|
2606 | coro->slf_frame.destroy (aTHX_ &coro->slf_frame); |
|
|
2607 | |
|
|
2608 | /* |
|
|
2609 | * The on_destroy above most likely is from an SLF call. |
|
|
2610 | * Since by definition the SLF call will not finish when we destroy |
|
|
2611 | * the coro, we will have to force-finish it here, otherwise |
|
|
2612 | * cleanup functions cannot call SLF functions. |
|
|
2613 | */ |
|
|
2614 | coro->slf_frame.prepare = 0; |
|
|
2615 | } |
|
|
2616 | |
|
|
2617 | /* |
|
|
2618 | * these not obviously related functions are all rolled into one |
|
|
2619 | * function to increase chances that they all will call transfer with the same |
|
|
2620 | * stack offset |
|
|
2621 | * SLF stands for "schedule-like-function". |
|
|
2622 | */ |
|
|
2623 | static OP * |
|
|
2624 | pp_slf (pTHX) |
|
|
2625 | { |
|
|
2626 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2627 | |
|
|
2628 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2629 | /* the latter happens when a new coro has been started */ |
|
|
2630 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2631 | if (ecb_expect_true (!slf_frame.prepare)) |
|
|
2632 | { |
|
|
2633 | /* first iteration */ |
|
|
2634 | dSP; |
|
|
2635 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2636 | int items = SP - arg; /* args without function object */ |
|
|
2637 | SV *gv = *sp; |
|
|
2638 | |
|
|
2639 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2640 | /* for us, divert to the real entersub */ |
|
|
2641 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2642 | || !GvCV (gv) |
|
|
2643 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2644 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2645 | |
|
|
2646 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2647 | { |
|
|
2648 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2649 | AV *av = GvAV (PL_defgv); |
|
|
2650 | arg = AvARRAY (av); |
|
|
2651 | items = AvFILLp (av) + 1; |
|
|
2652 | } |
|
|
2653 | |
|
|
2654 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2655 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2656 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2657 | |
|
|
2658 | /* pop args */ |
|
|
2659 | SP = PL_stack_base + POPMARK; |
|
|
2660 | |
|
|
2661 | PUTBACK; |
|
|
2662 | } |
|
|
2663 | |
|
|
2664 | /* now that we have a slf_frame, interpret it! */ |
|
|
2665 | /* we use a callback system not to make the code needlessly */ |
|
|
2666 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2667 | |
|
|
2668 | do |
|
|
2669 | { |
|
|
2670 | struct coro_transfer_args ta; |
|
|
2671 | |
|
|
2672 | slf_frame.prepare (aTHX_ &ta); |
|
|
2673 | TRANSFER (ta, 0); |
|
|
2674 | |
|
|
2675 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2676 | } |
|
|
2677 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2678 | |
|
|
2679 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2680 | |
|
|
2681 | /* exception handling */ |
|
|
2682 | if (ecb_expect_false (CORO_THROW)) |
|
|
2683 | { |
|
|
2684 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2685 | |
|
|
2686 | CORO_THROW = 0; |
|
|
2687 | sv_setsv (ERRSV, exception); |
|
|
2688 | croak (0); |
|
|
2689 | } |
|
|
2690 | |
|
|
2691 | /* return value handling - mostly like entersub */ |
|
|
2692 | /* make sure we put something on the stack in scalar context */ |
|
|
2693 | if (GIMME_V == G_SCALAR |
|
|
2694 | && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1)) |
|
|
2695 | { |
|
|
2696 | dSP; |
|
|
2697 | SV **bot = PL_stack_base + checkmark; |
|
|
2698 | |
|
|
2699 | if (sp == bot) /* too few, push undef */ |
|
|
2700 | bot [1] = &PL_sv_undef; |
|
|
2701 | else /* too many, take last one */ |
|
|
2702 | bot [1] = *sp; |
|
|
2703 | |
|
|
2704 | SP = bot + 1; |
|
|
2705 | |
|
|
2706 | PUTBACK; |
|
|
2707 | } |
|
|
2708 | |
|
|
2709 | return NORMAL; |
|
|
2710 | } |
|
|
2711 | |
|
|
2712 | static void |
|
|
2713 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2714 | { |
|
|
2715 | int i; |
|
|
2716 | SV **arg = PL_stack_base + ax; |
|
|
2717 | int items = PL_stack_sp - arg + 1; |
|
|
2718 | |
|
|
2719 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2720 | |
|
|
2721 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2722 | && PL_op->op_ppaddr != pp_slf) |
|
|
2723 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2724 | |
|
|
2725 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2726 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2727 | slf_cv = cv; |
|
|
2728 | |
|
|
2729 | /* we patch the op, and then re-run the whole call */ |
|
|
2730 | /* we have to put the same argument on the stack for this to work */ |
|
|
2731 | /* and this will be done by pp_restore */ |
|
|
2732 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2733 | slf_restore.op_type = OP_CUSTOM; |
|
|
2734 | slf_restore.op_ppaddr = pp_restore; |
|
|
2735 | slf_restore.op_first = PL_op; |
|
|
2736 | |
|
|
2737 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2738 | |
|
|
2739 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2740 | { |
|
|
2741 | if (items > slf_arga) |
|
|
2742 | { |
|
|
2743 | slf_arga = items; |
|
|
2744 | Safefree (slf_argv); |
|
|
2745 | New (0, slf_argv, slf_arga, SV *); |
|
|
2746 | } |
|
|
2747 | |
|
|
2748 | slf_argc = items; |
|
|
2749 | |
|
|
2750 | for (i = 0; i < items; ++i) |
|
|
2751 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2752 | } |
|
|
2753 | else |
|
|
2754 | slf_argc = 0; |
|
|
2755 | |
|
|
2756 | PL_op->op_ppaddr = pp_slf; |
|
|
2757 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2758 | |
|
|
2759 | PL_op = (OP *)&slf_restore; |
|
|
2760 | } |
|
|
2761 | |
|
|
2762 | /*****************************************************************************/ |
|
|
2763 | /* dynamic wind */ |
|
|
2764 | |
|
|
2765 | static void |
|
|
2766 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2767 | { |
|
|
2768 | dSP; |
|
|
2769 | |
|
|
2770 | PUSHSTACK; |
|
|
2771 | |
|
|
2772 | PUSHMARK (SP); |
|
|
2773 | PUTBACK; |
|
|
2774 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2775 | SPAGAIN; |
|
|
2776 | |
|
|
2777 | POPSTACK; |
|
|
2778 | } |
|
|
2779 | |
|
|
2780 | static SV * |
|
|
2781 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2782 | { |
|
|
2783 | AV *av = *avp; |
|
|
2784 | SV *res = av_pop (av); |
|
|
2785 | |
|
|
2786 | if (AvFILLp (av) < 0) |
|
|
2787 | { |
|
|
2788 | *avp = 0; |
|
|
2789 | SvREFCNT_dec (av); |
|
|
2790 | } |
|
|
2791 | |
|
|
2792 | return res; |
|
|
2793 | } |
|
|
2794 | |
|
|
2795 | static void |
|
|
2796 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2797 | { |
|
|
2798 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2799 | SvREFCNT_dec (cb); |
|
|
2800 | } |
|
|
2801 | |
|
|
2802 | static void |
|
|
2803 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2804 | { |
|
|
2805 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2806 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2807 | } |
|
|
2808 | |
1704 | /*****************************************************************************/ |
2809 | /*****************************************************************************/ |
1705 | /* PerlIO::cede */ |
2810 | /* PerlIO::cede */ |
1706 | |
2811 | |
1707 | typedef struct |
2812 | typedef struct |
1708 | { |
2813 | { |
1709 | PerlIOBuf base; |
2814 | PerlIOBuf base; |
1710 | NV next, every; |
2815 | NV next, every; |
1711 | } PerlIOCede; |
2816 | } PerlIOCede; |
1712 | |
2817 | |
1713 | static IV |
2818 | static IV ecb_cold |
1714 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
2819 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
1715 | { |
2820 | { |
1716 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2821 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1717 | |
2822 | |
1718 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
2823 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
1719 | self->next = nvtime () + self->every; |
2824 | self->next = nvtime () + self->every; |
1720 | |
2825 | |
1721 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
2826 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
1722 | } |
2827 | } |
1723 | |
2828 | |
1724 | static SV * |
2829 | static SV * ecb_cold |
1725 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
2830 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
1726 | { |
2831 | { |
1727 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2832 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1728 | |
2833 | |
1729 | return newSVnv (self->every); |
2834 | return newSVnv (self->every); |
… | |
… | |
1775 | PerlIOBuf_get_cnt, |
2880 | PerlIOBuf_get_cnt, |
1776 | PerlIOBuf_set_ptrcnt, |
2881 | PerlIOBuf_set_ptrcnt, |
1777 | }; |
2882 | }; |
1778 | |
2883 | |
1779 | /*****************************************************************************/ |
2884 | /*****************************************************************************/ |
|
|
2885 | /* Coro::Semaphore & Coro::Signal */ |
1780 | |
2886 | |
1781 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1782 | static const CV *slf_cv; |
|
|
1783 | static SV **slf_argv; |
|
|
1784 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1785 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1786 | |
|
|
1787 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1788 | /* recreate the stack frame as perl will on following calls */ |
|
|
1789 | /* since entersub cleared the stack */ |
|
|
1790 | static OP * |
2887 | static SV * |
1791 | pp_restore (pTHX) |
2888 | coro_waitarray_new (pTHX_ int count) |
1792 | { |
2889 | { |
1793 | int i; |
2890 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
1794 | SV **SP = PL_stack_base + slf_ax; |
2891 | AV *av = newAV (); |
|
|
2892 | SV **ary; |
1795 | |
2893 | |
1796 | PUSHMARK (SP); |
2894 | /* unfortunately, building manually saves memory */ |
|
|
2895 | Newx (ary, 2, SV *); |
|
|
2896 | AvALLOC (av) = ary; |
|
|
2897 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2898 | AvARRAY (av) = ary; |
|
|
2899 | #else |
|
|
2900 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2901 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2902 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2903 | #endif |
|
|
2904 | AvMAX (av) = 1; |
|
|
2905 | AvFILLp (av) = 0; |
|
|
2906 | ary [0] = newSViv (count); |
1797 | |
2907 | |
1798 | EXTEND (SP, slf_argc + 1); |
2908 | return newRV_noinc ((SV *)av); |
1799 | |
|
|
1800 | for (i = 0; i < slf_argc; ++i) |
|
|
1801 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1802 | |
|
|
1803 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1804 | |
|
|
1805 | RETURNOP (slf_restore.op_first); |
|
|
1806 | } |
2909 | } |
1807 | |
2910 | |
1808 | static void |
2911 | /* semaphore */ |
1809 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1810 | { |
|
|
1811 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1812 | } |
|
|
1813 | |
|
|
1814 | static void |
|
|
1815 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1816 | { |
|
|
1817 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
1818 | |
|
|
1819 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1820 | frame->check = slf_check_nop; |
|
|
1821 | frame->data = (void *)SvIV (arg [0]); |
|
|
1822 | } |
|
|
1823 | |
|
|
1824 | static void |
|
|
1825 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1826 | { |
|
|
1827 | SV **arg = (SV **)slf_frame.data; |
|
|
1828 | |
|
|
1829 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1830 | } |
|
|
1831 | |
|
|
1832 | static void |
|
|
1833 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1834 | { |
|
|
1835 | if (items != 2) |
|
|
1836 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1837 | |
|
|
1838 | frame->prepare = slf_prepare_transfer; |
|
|
1839 | frame->check = slf_check_nop; |
|
|
1840 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1841 | } |
|
|
1842 | |
|
|
1843 | static void |
|
|
1844 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1845 | { |
|
|
1846 | frame->prepare = prepare_schedule; |
|
|
1847 | frame->check = slf_check_nop; |
|
|
1848 | } |
|
|
1849 | |
|
|
1850 | static void |
|
|
1851 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1852 | { |
|
|
1853 | frame->prepare = prepare_cede; |
|
|
1854 | frame->check = slf_check_nop; |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | static void |
|
|
1858 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1859 | { |
|
|
1860 | frame->prepare = prepare_cede_notself; |
|
|
1861 | frame->check = slf_check_nop; |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1865 | #define CVf_SLF 0x4000 |
|
|
1866 | |
|
|
1867 | /* |
|
|
1868 | * these not obviously related functions are all rolled into one |
|
|
1869 | * function to increase chances that they all will call transfer with the same |
|
|
1870 | * stack offset |
|
|
1871 | * SLF stands for "schedule-like-function". |
|
|
1872 | */ |
|
|
1873 | static OP * |
|
|
1874 | pp_slf (pTHX) |
|
|
1875 | { |
|
|
1876 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1877 | |
|
|
1878 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1879 | /* the latter happens when a new coro has been started */ |
|
|
1880 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1881 | if (expect_true (!slf_frame.prepare)) |
|
|
1882 | { |
|
|
1883 | /* first iteration */ |
|
|
1884 | dSP; |
|
|
1885 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1886 | int items = SP - arg; /* args without function object */ |
|
|
1887 | SV *gv = *sp; |
|
|
1888 | |
|
|
1889 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1890 | /* for us, divert to the real entersub */ |
|
|
1891 | if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1892 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1893 | |
|
|
1894 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1895 | { |
|
|
1896 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1897 | AV *av = GvAV (PL_defgv); |
|
|
1898 | arg = AvARRAY (av); |
|
|
1899 | items = AvFILLp (av) + 1; |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1903 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1904 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1905 | |
|
|
1906 | /* pop args */ |
|
|
1907 | SP = PL_stack_base + POPMARK; |
|
|
1908 | |
|
|
1909 | PUTBACK; |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | /* now that we have a slf_frame, interpret it! */ |
|
|
1913 | /* we use a callback system not to make the code needlessly */ |
|
|
1914 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1915 | |
|
|
1916 | do |
|
|
1917 | { |
|
|
1918 | struct coro_transfer_args ta; |
|
|
1919 | |
|
|
1920 | slf_frame.prepare (aTHX_ &ta); |
|
|
1921 | TRANSFER (ta, 0); |
|
|
1922 | |
|
|
1923 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1924 | } |
|
|
1925 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1926 | |
|
|
1927 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1928 | |
|
|
1929 | /* return value handling - mostly like entersub */ |
|
|
1930 | { |
|
|
1931 | dSP; |
|
|
1932 | SV **bot = PL_stack_base + checkmark; |
|
|
1933 | int gimme = GIMME_V; |
|
|
1934 | |
|
|
1935 | /* make sure we put something on the stack in scalar context */ |
|
|
1936 | if (gimme == G_SCALAR) |
|
|
1937 | { |
|
|
1938 | if (sp == bot) |
|
|
1939 | XPUSHs (&PL_sv_undef); |
|
|
1940 | |
|
|
1941 | SP = bot + 1; |
|
|
1942 | } |
|
|
1943 | |
|
|
1944 | PUTBACK; |
|
|
1945 | } |
|
|
1946 | |
|
|
1947 | /* exception handling */ |
|
|
1948 | if (expect_false (coro_throw)) |
|
|
1949 | { |
|
|
1950 | SV *exception = sv_2mortal (coro_throw); |
|
|
1951 | |
|
|
1952 | coro_throw = 0; |
|
|
1953 | sv_setsv (ERRSV, exception); |
|
|
1954 | croak (0); |
|
|
1955 | } |
|
|
1956 | |
|
|
1957 | return NORMAL; |
|
|
1958 | } |
|
|
1959 | |
|
|
1960 | static void |
|
|
1961 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1962 | { |
|
|
1963 | int i; |
|
|
1964 | SV **arg = PL_stack_base + ax; |
|
|
1965 | int items = PL_stack_sp - arg + 1; |
|
|
1966 | |
|
|
1967 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1968 | |
|
|
1969 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1970 | && PL_op->op_ppaddr != pp_slf) |
|
|
1971 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1972 | |
|
|
1973 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1974 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1975 | slf_cv = cv; |
|
|
1976 | |
|
|
1977 | /* we patch the op, and then re-run the whole call */ |
|
|
1978 | /* we have to put the same argument on the stack for this to work */ |
|
|
1979 | /* and this will be done by pp_restore */ |
|
|
1980 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1981 | slf_restore.op_type = OP_CUSTOM; |
|
|
1982 | slf_restore.op_ppaddr = pp_restore; |
|
|
1983 | slf_restore.op_first = PL_op; |
|
|
1984 | |
|
|
1985 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1986 | |
|
|
1987 | if (items > slf_arga) |
|
|
1988 | { |
|
|
1989 | slf_arga = items; |
|
|
1990 | free (slf_argv); |
|
|
1991 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
1992 | } |
|
|
1993 | |
|
|
1994 | slf_argc = items; |
|
|
1995 | |
|
|
1996 | for (i = 0; i < items; ++i) |
|
|
1997 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
1998 | |
|
|
1999 | PL_op->op_ppaddr = pp_slf; |
|
|
2000 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
2001 | |
|
|
2002 | PL_op = (OP *)&slf_restore; |
|
|
2003 | } |
|
|
2004 | |
|
|
2005 | /*****************************************************************************/ |
|
|
2006 | |
2912 | |
2007 | static void |
2913 | static void |
2008 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
2914 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
2009 | { |
2915 | { |
2010 | SV *count_sv = AvARRAY (av)[0]; |
2916 | SV *count_sv = AvARRAY (av)[0]; |
… | |
… | |
2022 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
2928 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
2023 | AvARRAY (av)[1] = count_sv; |
2929 | AvARRAY (av)[1] = count_sv; |
2024 | cb = av_shift (av); |
2930 | cb = av_shift (av); |
2025 | |
2931 | |
2026 | if (SvOBJECT (cb)) |
2932 | if (SvOBJECT (cb)) |
|
|
2933 | { |
2027 | api_ready (aTHX_ cb); |
2934 | api_ready (aTHX_ cb); |
2028 | else |
2935 | --count; |
2029 | croak ("callbacks not yet supported"); |
2936 | } |
|
|
2937 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2938 | { |
|
|
2939 | dSP; |
|
|
2940 | PUSHMARK (SP); |
|
|
2941 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2942 | PUTBACK; |
|
|
2943 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2944 | } |
2030 | |
2945 | |
2031 | SvREFCNT_dec (cb); |
2946 | SvREFCNT_dec (cb); |
2032 | |
|
|
2033 | --count; |
|
|
2034 | } |
2947 | } |
2035 | } |
2948 | } |
2036 | |
2949 | |
2037 | static void |
2950 | static void |
2038 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
2951 | coro_semaphore_destroy (pTHX_ struct CoroSLF *frame) |
2039 | { |
2952 | { |
2040 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2953 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
2041 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
2954 | coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0); |
2042 | } |
2955 | } |
2043 | |
2956 | |
2044 | static int |
2957 | static int |
2045 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
2958 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
2046 | { |
2959 | { |
2047 | AV *av = (AV *)frame->data; |
2960 | AV *av = (AV *)frame->data; |
2048 | SV *count_sv = AvARRAY (av)[0]; |
2961 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2962 | SV *coro_hv = SvRV (coro_current); |
2049 | |
2963 | |
|
|
2964 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2965 | if (CORO_THROW) |
|
|
2966 | return 0; |
2050 | if (SvIVX (count_sv) > 0) |
2967 | else if (SvIVX (count_sv) > 0) |
2051 | { |
2968 | { |
2052 | SvSTATE_current->on_destroy = 0; |
2969 | frame->destroy = 0; |
|
|
2970 | |
|
|
2971 | if (acquire) |
2053 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
2972 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2973 | else |
|
|
2974 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2975 | |
2054 | return 0; |
2976 | return 0; |
2055 | } |
2977 | } |
2056 | else |
2978 | else |
2057 | { |
2979 | { |
2058 | int i; |
2980 | int i; |
2059 | /* if we were woken up but can't down, we look through the whole */ |
2981 | /* if we were woken up but can't down, we look through the whole */ |
2060 | /* waiters list and only add us if we aren't in there already */ |
2982 | /* waiters list and only add us if we aren't in there already */ |
2061 | /* this avoids some degenerate memory usage cases */ |
2983 | /* this avoids some degenerate memory usage cases */ |
2062 | |
2984 | for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */ |
2063 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2064 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
2985 | if (AvARRAY (av)[i] == coro_hv) |
2065 | return 1; |
2986 | return 1; |
2066 | |
2987 | |
2067 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2988 | av_push (av, SvREFCNT_inc (coro_hv)); |
2068 | return 1; |
2989 | return 1; |
2069 | } |
2990 | } |
2070 | } |
2991 | } |
2071 | |
2992 | |
2072 | static void |
2993 | static int |
|
|
2994 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2995 | { |
|
|
2996 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2997 | } |
|
|
2998 | |
|
|
2999 | static int |
|
|
3000 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
3001 | { |
|
|
3002 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
3003 | } |
|
|
3004 | |
|
|
3005 | static void |
2073 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
3006 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
2074 | { |
3007 | { |
2075 | AV *av = (AV *)SvRV (arg [0]); |
3008 | AV *av = (AV *)SvRV (arg [0]); |
2076 | |
3009 | |
2077 | if (SvIVX (AvARRAY (av)[0]) > 0) |
3010 | if (SvIVX (AvARRAY (av)[0]) > 0) |
2078 | { |
3011 | { |
2079 | frame->data = (void *)av; |
3012 | frame->data = (void *)av; |
2080 | frame->prepare = prepare_nop; |
3013 | frame->prepare = prepare_nop; |
2081 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2082 | } |
3014 | } |
2083 | else |
3015 | else |
2084 | { |
3016 | { |
2085 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
3017 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2086 | |
3018 | |
2087 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
3019 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2088 | frame->prepare = prepare_schedule; |
3020 | frame->prepare = prepare_schedule; |
2089 | |
|
|
2090 | /* to avoid race conditions when a woken-up coro gets terminated */ |
3021 | /* to avoid race conditions when a woken-up coro gets terminated */ |
2091 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
3022 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
2092 | assert (!SvSTATE_current->on_destroy);//D |
|
|
2093 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
3023 | frame->destroy = coro_semaphore_destroy; |
2094 | } |
3024 | } |
|
|
3025 | } |
2095 | |
3026 | |
|
|
3027 | static void |
|
|
3028 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3029 | { |
|
|
3030 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
2096 | frame->check = slf_check_semaphore_down; |
3031 | frame->check = slf_check_semaphore_down; |
|
|
3032 | } |
2097 | |
3033 | |
|
|
3034 | static void |
|
|
3035 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3036 | { |
|
|
3037 | if (items >= 2) |
|
|
3038 | { |
|
|
3039 | /* callback form */ |
|
|
3040 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3041 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3042 | |
|
|
3043 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3044 | |
|
|
3045 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3046 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3047 | |
|
|
3048 | frame->prepare = prepare_nop; |
|
|
3049 | frame->check = slf_check_nop; |
|
|
3050 | } |
|
|
3051 | else |
|
|
3052 | { |
|
|
3053 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3054 | frame->check = slf_check_semaphore_wait; |
|
|
3055 | } |
|
|
3056 | } |
|
|
3057 | |
|
|
3058 | /* signal */ |
|
|
3059 | |
|
|
3060 | static void |
|
|
3061 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
3062 | { |
|
|
3063 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3064 | |
|
|
3065 | /* now signal count waiters */ |
|
|
3066 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3067 | { |
|
|
3068 | SV *cb; |
|
|
3069 | |
|
|
3070 | /* swap first two elements so we can shift a waiter */ |
|
|
3071 | cb = AvARRAY (av)[0]; |
|
|
3072 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3073 | AvARRAY (av)[1] = cb; |
|
|
3074 | |
|
|
3075 | cb = av_shift (av); |
|
|
3076 | |
|
|
3077 | if (SvTYPE (cb) == SVt_PVCV) |
|
|
3078 | { |
|
|
3079 | dSP; |
|
|
3080 | PUSHMARK (SP); |
|
|
3081 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
3082 | PUTBACK; |
|
|
3083 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
3084 | } |
|
|
3085 | else |
|
|
3086 | { |
|
|
3087 | api_ready (aTHX_ cb); |
|
|
3088 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
3089 | } |
|
|
3090 | |
|
|
3091 | SvREFCNT_dec (cb); |
|
|
3092 | |
|
|
3093 | --count; |
|
|
3094 | } |
|
|
3095 | } |
|
|
3096 | |
|
|
3097 | static int |
|
|
3098 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
3099 | { |
|
|
3100 | /* if we are about to throw, also stop waiting */ |
|
|
3101 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
3102 | } |
|
|
3103 | |
|
|
3104 | static void |
|
|
3105 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3106 | { |
|
|
3107 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3108 | |
|
|
3109 | if (items >= 2) |
|
|
3110 | { |
|
|
3111 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3112 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3113 | |
|
|
3114 | if (SvIVX (AvARRAY (av)[0])) |
|
|
3115 | coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */ |
|
|
3116 | |
|
|
3117 | frame->prepare = prepare_nop; |
|
|
3118 | frame->check = slf_check_nop; |
|
|
3119 | } |
|
|
3120 | else if (SvIVX (AvARRAY (av)[0])) |
|
|
3121 | { |
|
|
3122 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3123 | frame->prepare = prepare_nop; |
|
|
3124 | frame->check = slf_check_nop; |
|
|
3125 | } |
|
|
3126 | else |
|
|
3127 | { |
|
|
3128 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
3129 | |
|
|
3130 | av_push (av, waiter); |
|
|
3131 | |
|
|
3132 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
3133 | frame->prepare = prepare_schedule; |
|
|
3134 | frame->check = slf_check_signal_wait; |
|
|
3135 | } |
2098 | } |
3136 | } |
2099 | |
3137 | |
2100 | /*****************************************************************************/ |
3138 | /*****************************************************************************/ |
|
|
3139 | /* Coro::AIO */ |
2101 | |
3140 | |
2102 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
3141 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
2103 | |
3142 | |
2104 | /* create a closure from XS, returns a code reference */ |
3143 | /* helper storage struct */ |
2105 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
3144 | struct io_state |
2106 | /* the callback must use dXSARGS/XSRETURN */ |
3145 | { |
|
|
3146 | int errorno; |
|
|
3147 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
3148 | int laststatval; |
|
|
3149 | Stat_t statcache; |
|
|
3150 | }; |
|
|
3151 | |
|
|
3152 | static void |
|
|
3153 | coro_aio_callback (pTHX_ CV *cv) |
|
|
3154 | { |
|
|
3155 | dXSARGS; |
|
|
3156 | AV *state = (AV *)S_GENSUB_ARG; |
|
|
3157 | SV *coro = av_pop (state); |
|
|
3158 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
3159 | |
|
|
3160 | av_extend (state, items - 1); |
|
|
3161 | |
|
|
3162 | sv_upgrade (data_sv, SVt_PV); |
|
|
3163 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
3164 | SvPOK_only (data_sv); |
|
|
3165 | |
|
|
3166 | { |
|
|
3167 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3168 | |
|
|
3169 | data->errorno = errno; |
|
|
3170 | data->laststype = PL_laststype; |
|
|
3171 | data->laststatval = PL_laststatval; |
|
|
3172 | data->statcache = PL_statcache; |
|
|
3173 | } |
|
|
3174 | |
|
|
3175 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
3176 | { |
|
|
3177 | int i; |
|
|
3178 | |
|
|
3179 | for (i = 0; i < items; ++i) |
|
|
3180 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
3181 | } |
|
|
3182 | |
|
|
3183 | av_push (state, data_sv); |
|
|
3184 | |
|
|
3185 | api_ready (aTHX_ coro); |
|
|
3186 | SvREFCNT_dec (coro); |
|
|
3187 | SvREFCNT_dec ((AV *)state); |
|
|
3188 | } |
|
|
3189 | |
|
|
3190 | static int |
|
|
3191 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
3192 | { |
|
|
3193 | AV *state = (AV *)frame->data; |
|
|
3194 | |
|
|
3195 | /* if we are about to throw, return early */ |
|
|
3196 | /* this does not cancel the aio request, but at least */ |
|
|
3197 | /* it quickly returns */ |
|
|
3198 | if (CORO_THROW) |
|
|
3199 | return 0; |
|
|
3200 | |
|
|
3201 | /* one element that is an RV? repeat! */ |
|
|
3202 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
3203 | return 1; |
|
|
3204 | |
|
|
3205 | /* restore status */ |
|
|
3206 | { |
|
|
3207 | SV *data_sv = av_pop (state); |
|
|
3208 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3209 | |
|
|
3210 | errno = data->errorno; |
|
|
3211 | PL_laststype = data->laststype; |
|
|
3212 | PL_laststatval = data->laststatval; |
|
|
3213 | PL_statcache = data->statcache; |
|
|
3214 | |
|
|
3215 | SvREFCNT_dec (data_sv); |
|
|
3216 | } |
|
|
3217 | |
|
|
3218 | /* push result values */ |
|
|
3219 | { |
|
|
3220 | dSP; |
|
|
3221 | int i; |
|
|
3222 | |
|
|
3223 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
3224 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
3225 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
3226 | |
|
|
3227 | PUTBACK; |
|
|
3228 | } |
|
|
3229 | |
|
|
3230 | return 0; |
|
|
3231 | } |
|
|
3232 | |
|
|
3233 | static void |
|
|
3234 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3235 | { |
|
|
3236 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
3237 | SV *coro_hv = SvRV (coro_current); |
|
|
3238 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
3239 | |
|
|
3240 | /* put our coroutine id on the state arg */ |
|
|
3241 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
3242 | |
|
|
3243 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
3244 | if (coro->prio) |
|
|
3245 | { |
|
|
3246 | dSP; |
|
|
3247 | |
|
|
3248 | static SV *prio_cv; |
|
|
3249 | static SV *prio_sv; |
|
|
3250 | |
|
|
3251 | if (ecb_expect_false (!prio_cv)) |
|
|
3252 | { |
|
|
3253 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
3254 | prio_sv = newSViv (0); |
|
|
3255 | } |
|
|
3256 | |
|
|
3257 | PUSHMARK (SP); |
|
|
3258 | sv_setiv (prio_sv, coro->prio); |
|
|
3259 | XPUSHs (prio_sv); |
|
|
3260 | |
|
|
3261 | PUTBACK; |
|
|
3262 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
3263 | } |
|
|
3264 | |
|
|
3265 | /* now call the original request */ |
|
|
3266 | { |
|
|
3267 | dSP; |
|
|
3268 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
3269 | int i; |
|
|
3270 | |
|
|
3271 | PUSHMARK (SP); |
|
|
3272 | |
|
|
3273 | /* first push all args to the stack */ |
|
|
3274 | EXTEND (SP, items + 1); |
|
|
3275 | |
|
|
3276 | for (i = 0; i < items; ++i) |
|
|
3277 | PUSHs (arg [i]); |
|
|
3278 | |
|
|
3279 | /* now push the callback closure */ |
|
|
3280 | PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
3281 | |
|
|
3282 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
3283 | PUTBACK; |
|
|
3284 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
3285 | } |
|
|
3286 | |
|
|
3287 | /* now that the request is going, we loop till we have a result */ |
|
|
3288 | frame->data = (void *)state; |
|
|
3289 | frame->prepare = prepare_schedule; |
|
|
3290 | frame->check = slf_check_aio_req; |
|
|
3291 | } |
|
|
3292 | |
|
|
3293 | static void |
|
|
3294 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
3295 | { |
|
|
3296 | dXSARGS; |
|
|
3297 | |
|
|
3298 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
3299 | |
|
|
3300 | XSRETURN_EMPTY; |
|
|
3301 | } |
|
|
3302 | |
|
|
3303 | /*****************************************************************************/ |
|
|
3304 | |
|
|
3305 | #if CORO_CLONE |
|
|
3306 | # include "clone.c" |
|
|
3307 | #endif |
|
|
3308 | |
|
|
3309 | /*****************************************************************************/ |
|
|
3310 | |
2107 | static SV * |
3311 | static SV * |
2108 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
3312 | coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro) |
2109 | { |
3313 | { |
2110 | CV *cv = (CV *)NEWSV (0, 0); |
3314 | SV *coro_sv; |
|
|
3315 | struct coro *coro; |
|
|
3316 | MAGIC *mg; |
|
|
3317 | HV *hv; |
|
|
3318 | SV *cb; |
|
|
3319 | int i; |
2111 | |
3320 | |
2112 | sv_upgrade ((SV *)cv, SVt_PVCV); |
3321 | if (argc > 0) |
|
|
3322 | { |
|
|
3323 | cb = s_get_cv_croak (argv [0]); |
2113 | |
3324 | |
2114 | CvANON_on (cv); |
3325 | if (!is_coro) |
2115 | CvISXSUB_on (cv); |
3326 | { |
2116 | CvXSUB (cv) = xsub; |
3327 | if (CvISXSUB (cb)) |
2117 | GENSUB_ARG = arg; |
3328 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
2118 | |
3329 | |
2119 | return newRV_noinc ((SV *)cv); |
3330 | if (!CvROOT (cb)) |
2120 | } |
3331 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3332 | } |
|
|
3333 | } |
2121 | |
3334 | |
2122 | /*****************************************************************************/ |
3335 | Newz (0, coro, 1, struct coro); |
|
|
3336 | coro->args = newAV (); |
|
|
3337 | coro->flags = CF_NEW; |
|
|
3338 | |
|
|
3339 | if (coro_first) coro_first->prev = coro; |
|
|
3340 | coro->next = coro_first; |
|
|
3341 | coro_first = coro; |
|
|
3342 | |
|
|
3343 | coro->hv = hv = newHV (); |
|
|
3344 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
3345 | mg->mg_flags |= MGf_DUP; |
|
|
3346 | coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash); |
|
|
3347 | |
|
|
3348 | if (argc > 0) |
|
|
3349 | { |
|
|
3350 | av_extend (coro->args, argc + is_coro - 1); |
|
|
3351 | |
|
|
3352 | if (is_coro) |
|
|
3353 | { |
|
|
3354 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3355 | cb = (SV *)cv_coro_run; |
|
|
3356 | } |
|
|
3357 | |
|
|
3358 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3359 | |
|
|
3360 | for (i = 1; i < argc; i++) |
|
|
3361 | av_push (coro->args, newSVsv (argv [i])); |
|
|
3362 | } |
|
|
3363 | |
|
|
3364 | return coro_sv; |
|
|
3365 | } |
|
|
3366 | |
|
|
3367 | #ifndef __cplusplus |
|
|
3368 | ecb_cold XS(boot_Coro__State); |
|
|
3369 | #endif |
|
|
3370 | |
|
|
3371 | #if CORO_JIT |
|
|
3372 | |
|
|
3373 | static void ecb_noinline ecb_cold |
|
|
3374 | pushav_4uv (pTHX_ UV a, UV b, UV c, UV d) |
|
|
3375 | { |
|
|
3376 | dSP; |
|
|
3377 | AV *av = newAV (); |
|
|
3378 | |
|
|
3379 | av_store (av, 3, newSVuv (d)); |
|
|
3380 | av_store (av, 2, newSVuv (c)); |
|
|
3381 | av_store (av, 1, newSVuv (b)); |
|
|
3382 | av_store (av, 0, newSVuv (a)); |
|
|
3383 | |
|
|
3384 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
3385 | |
|
|
3386 | PUTBACK; |
|
|
3387 | } |
|
|
3388 | |
|
|
3389 | static void ecb_noinline ecb_cold |
|
|
3390 | jit_init (pTHX) |
|
|
3391 | { |
|
|
3392 | dSP; |
|
|
3393 | SV *load, *save; |
|
|
3394 | char *map_base; |
|
|
3395 | char *load_ptr, *save_ptr; |
|
|
3396 | STRLEN load_len, save_len, map_len; |
|
|
3397 | int count; |
|
|
3398 | |
|
|
3399 | eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1); |
|
|
3400 | |
|
|
3401 | PUSHMARK (SP); |
|
|
3402 | #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type)); |
|
|
3403 | #include "state.h" |
|
|
3404 | count = call_pv ("Coro::State::_jit", G_ARRAY); |
|
|
3405 | SPAGAIN; |
|
|
3406 | |
|
|
3407 | save = POPs; save_ptr = SvPVbyte (save, save_len); |
|
|
3408 | load = POPs; load_ptr = SvPVbyte (load, load_len); |
|
|
3409 | |
|
|
3410 | map_len = load_len + save_len + 16; |
|
|
3411 | |
|
|
3412 | map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
|
|
3413 | |
|
|
3414 | assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED)); |
|
|
3415 | |
|
|
3416 | load_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3417 | memcpy (map_base, load_ptr, load_len); |
|
|
3418 | |
|
|
3419 | map_base += (load_len + 15) & ~15; |
|
|
3420 | |
|
|
3421 | save_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3422 | memcpy (map_base, save_ptr, save_len); |
|
|
3423 | |
|
|
3424 | /* we are good citizens and try to make the page read-only, so the evil evil */ |
|
|
3425 | /* hackers might have it a bit more difficult */ |
|
|
3426 | mprotect (map_base, map_len, PROT_READ | PROT_EXEC); |
|
|
3427 | |
|
|
3428 | PUTBACK; |
|
|
3429 | eval_pv ("undef &Coro::State::_jit", 1); |
|
|
3430 | } |
|
|
3431 | |
|
|
3432 | #endif |
2123 | |
3433 | |
2124 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3434 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2125 | |
3435 | |
2126 | PROTOTYPES: DISABLE |
3436 | PROTOTYPES: DISABLE |
2127 | |
3437 | |
… | |
… | |
2132 | coro_thx = PERL_GET_CONTEXT; |
3442 | coro_thx = PERL_GET_CONTEXT; |
2133 | # endif |
3443 | # endif |
2134 | #endif |
3444 | #endif |
2135 | BOOT_PAGESIZE; |
3445 | BOOT_PAGESIZE; |
2136 | |
3446 | |
|
|
3447 | /* perl defines these to check for existance first, but why it doesn't */ |
|
|
3448 | /* just create them one at init time is not clear to me, except for */ |
|
|
3449 | /* programs trying to delete them, but... */ |
|
|
3450 | /* anyway, we declare this as invalid and make sure they are initialised here */ |
|
|
3451 | DEFSV; |
|
|
3452 | ERRSV; |
|
|
3453 | |
|
|
3454 | cctx_current = cctx_new_empty (); |
|
|
3455 | |
2137 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
3456 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2138 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3457 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2139 | |
3458 | |
2140 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
3459 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
2141 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
3460 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
… | |
… | |
2160 | |
3479 | |
2161 | { |
3480 | { |
2162 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
3481 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
2163 | |
3482 | |
2164 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
3483 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
2165 | hv_store_ent (PL_custom_op_names, slf, |
3484 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
2166 | newSVpv ("coro_slf", 0), 0); |
|
|
2167 | |
3485 | |
2168 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
3486 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
2169 | hv_store_ent (PL_custom_op_descs, slf, |
3487 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
2170 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2171 | } |
3488 | } |
2172 | |
3489 | |
2173 | coroapi.ver = CORO_API_VERSION; |
3490 | coroapi.ver = CORO_API_VERSION; |
2174 | coroapi.rev = CORO_API_REVISION; |
3491 | coroapi.rev = CORO_API_REVISION; |
2175 | |
3492 | |
… | |
… | |
2180 | coroapi.prepare_nop = prepare_nop; |
3497 | coroapi.prepare_nop = prepare_nop; |
2181 | coroapi.prepare_schedule = prepare_schedule; |
3498 | coroapi.prepare_schedule = prepare_schedule; |
2182 | coroapi.prepare_cede = prepare_cede; |
3499 | coroapi.prepare_cede = prepare_cede; |
2183 | coroapi.prepare_cede_notself = prepare_cede_notself; |
3500 | coroapi.prepare_cede_notself = prepare_cede_notself; |
2184 | |
3501 | |
2185 | { |
3502 | time_init (aTHX); |
2186 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
2187 | |
3503 | |
2188 | if (!svp) croak ("Time::HiRes is required"); |
|
|
2189 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
2190 | |
|
|
2191 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
2192 | } |
|
|
2193 | |
|
|
2194 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
3504 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
|
|
3505 | #if CORO_JIT |
|
|
3506 | PUTBACK; |
|
|
3507 | jit_init (aTHX); |
|
|
3508 | SPAGAIN; |
|
|
3509 | #endif |
2195 | } |
3510 | } |
2196 | |
3511 | |
2197 | SV * |
3512 | SV * |
2198 | new (char *klass, ...) |
3513 | new (SV *klass, ...) |
|
|
3514 | ALIAS: |
|
|
3515 | Coro::new = 1 |
2199 | CODE: |
3516 | CODE: |
2200 | { |
3517 | RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix); |
2201 | struct coro *coro; |
3518 | OUTPUT: |
2202 | MAGIC *mg; |
|
|
2203 | HV *hv; |
|
|
2204 | int i; |
|
|
2205 | |
|
|
2206 | Newz (0, coro, 1, struct coro); |
|
|
2207 | coro->args = newAV (); |
|
|
2208 | coro->flags = CF_NEW; |
|
|
2209 | |
|
|
2210 | if (coro_first) coro_first->prev = coro; |
|
|
2211 | coro->next = coro_first; |
|
|
2212 | coro_first = coro; |
|
|
2213 | |
|
|
2214 | coro->hv = hv = newHV (); |
|
|
2215 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
2216 | mg->mg_flags |= MGf_DUP; |
|
|
2217 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
2218 | |
|
|
2219 | av_extend (coro->args, items - 1); |
|
|
2220 | for (i = 1; i < items; i++) |
|
|
2221 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2222 | } |
|
|
2223 | OUTPUT: |
|
|
2224 | RETVAL |
3519 | RETVAL |
2225 | |
|
|
2226 | void |
|
|
2227 | _set_stacklevel (...) |
|
|
2228 | CODE: |
|
|
2229 | CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel); |
|
|
2230 | |
3520 | |
2231 | void |
3521 | void |
2232 | transfer (...) |
3522 | transfer (...) |
2233 | PROTOTYPE: $$ |
3523 | PROTOTYPE: $$ |
2234 | CODE: |
3524 | CODE: |
2235 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
3525 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
2236 | |
3526 | |
2237 | bool |
|
|
2238 | _destroy (SV *coro_sv) |
|
|
2239 | CODE: |
|
|
2240 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
2241 | OUTPUT: |
|
|
2242 | RETVAL |
|
|
2243 | |
|
|
2244 | void |
3527 | void |
2245 | _exit (int code) |
3528 | _exit (int code) |
2246 | PROTOTYPE: $ |
3529 | PROTOTYPE: $ |
2247 | CODE: |
3530 | CODE: |
2248 | _exit (code); |
3531 | _exit (code); |
|
|
3532 | |
|
|
3533 | SV * |
|
|
3534 | clone (Coro::State coro) |
|
|
3535 | CODE: |
|
|
3536 | { |
|
|
3537 | #if CORO_CLONE |
|
|
3538 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3539 | MAGIC *mg; |
|
|
3540 | /* TODO: too much duplication */ |
|
|
3541 | ncoro->hv = newHV (); |
|
|
3542 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3543 | mg->mg_flags |= MGf_DUP; |
|
|
3544 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3545 | #else |
|
|
3546 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3547 | #endif |
|
|
3548 | } |
|
|
3549 | OUTPUT: |
|
|
3550 | RETVAL |
2249 | |
3551 | |
2250 | int |
3552 | int |
2251 | cctx_stacksize (int new_stacksize = 0) |
3553 | cctx_stacksize (int new_stacksize = 0) |
2252 | PROTOTYPE: ;$ |
3554 | PROTOTYPE: ;$ |
2253 | CODE: |
3555 | CODE: |
… | |
… | |
2303 | eval = 1 |
3605 | eval = 1 |
2304 | CODE: |
3606 | CODE: |
2305 | { |
3607 | { |
2306 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
3608 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
2307 | { |
3609 | { |
2308 | struct coro temp; |
3610 | struct coro *current = SvSTATE_current; |
|
|
3611 | struct CoroSLF slf_save; |
2309 | |
3612 | |
2310 | if (!(coro->flags & CF_RUNNING)) |
3613 | if (current != coro) |
2311 | { |
3614 | { |
2312 | PUTBACK; |
3615 | PUTBACK; |
2313 | save_perl (aTHX_ &temp); |
3616 | save_perl (aTHX_ current); |
2314 | load_perl (aTHX_ coro); |
3617 | load_perl (aTHX_ coro); |
|
|
3618 | /* the coro is most likely in an active SLF call. |
|
|
3619 | * while not strictly required (the code we execute is |
|
|
3620 | * not allowed to call any SLF functions), it's cleaner |
|
|
3621 | * to reinitialise the slf_frame and restore it later. |
|
|
3622 | * This might one day allow us to actually do SLF calls |
|
|
3623 | * from code executed here. |
|
|
3624 | */ |
|
|
3625 | slf_save = slf_frame; |
|
|
3626 | slf_frame.prepare = 0; |
|
|
3627 | SPAGAIN; |
2315 | } |
3628 | } |
2316 | |
3629 | |
2317 | { |
|
|
2318 | dSP; |
|
|
2319 | ENTER; |
|
|
2320 | SAVETMPS; |
|
|
2321 | PUTBACK; |
|
|
2322 | PUSHSTACK; |
3630 | PUSHSTACK; |
|
|
3631 | |
2323 | PUSHMARK (SP); |
3632 | PUSHMARK (SP); |
|
|
3633 | PUTBACK; |
2324 | |
3634 | |
2325 | if (ix) |
3635 | if (ix) |
2326 | eval_sv (coderef, 0); |
3636 | eval_sv (coderef, 0); |
2327 | else |
3637 | else |
2328 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3638 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2329 | |
3639 | |
2330 | POPSTACK; |
3640 | POPSTACK; |
2331 | SPAGAIN; |
3641 | SPAGAIN; |
2332 | FREETMPS; |
|
|
2333 | LEAVE; |
|
|
2334 | PUTBACK; |
|
|
2335 | } |
|
|
2336 | |
3642 | |
2337 | if (!(coro->flags & CF_RUNNING)) |
3643 | if (current != coro) |
2338 | { |
3644 | { |
|
|
3645 | PUTBACK; |
|
|
3646 | slf_frame = slf_save; |
2339 | save_perl (aTHX_ coro); |
3647 | save_perl (aTHX_ coro); |
2340 | load_perl (aTHX_ &temp); |
3648 | load_perl (aTHX_ current); |
2341 | SPAGAIN; |
3649 | SPAGAIN; |
2342 | } |
3650 | } |
2343 | } |
3651 | } |
2344 | } |
3652 | } |
2345 | |
3653 | |
… | |
… | |
2348 | PROTOTYPE: $ |
3656 | PROTOTYPE: $ |
2349 | ALIAS: |
3657 | ALIAS: |
2350 | is_ready = CF_READY |
3658 | is_ready = CF_READY |
2351 | is_running = CF_RUNNING |
3659 | is_running = CF_RUNNING |
2352 | is_new = CF_NEW |
3660 | is_new = CF_NEW |
2353 | is_destroyed = CF_DESTROYED |
3661 | is_destroyed = CF_ZOMBIE |
|
|
3662 | is_zombie = CF_ZOMBIE |
|
|
3663 | is_suspended = CF_SUSPENDED |
2354 | CODE: |
3664 | CODE: |
2355 | RETVAL = boolSV (coro->flags & ix); |
3665 | RETVAL = boolSV (coro->flags & ix); |
2356 | OUTPUT: |
3666 | OUTPUT: |
2357 | RETVAL |
3667 | RETVAL |
2358 | |
3668 | |
2359 | void |
3669 | void |
2360 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
3670 | throw (SV *self, SV *exception = &PL_sv_undef) |
2361 | PROTOTYPE: $;$ |
3671 | PROTOTYPE: $;$ |
2362 | CODE: |
3672 | CODE: |
2363 | { |
3673 | { |
|
|
3674 | struct coro *coro = SvSTATE (self); |
2364 | struct coro *current = SvSTATE_current; |
3675 | struct coro *current = SvSTATE_current; |
2365 | SV **throwp = self == current ? &coro_throw : &self->throw; |
3676 | SV **exceptionp = coro == current ? &CORO_THROW : &coro->except; |
2366 | SvREFCNT_dec (*throwp); |
3677 | SvREFCNT_dec (*exceptionp); |
2367 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
3678 | SvGETMAGIC (exception); |
|
|
3679 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
|
|
3680 | |
|
|
3681 | api_ready (aTHX_ self); |
2368 | } |
3682 | } |
2369 | |
3683 | |
2370 | void |
3684 | void |
2371 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3685 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2372 | PROTOTYPE: $;$ |
3686 | PROTOTYPE: $;$ |
… | |
… | |
2374 | |
3688 | |
2375 | SV * |
3689 | SV * |
2376 | has_cctx (Coro::State coro) |
3690 | has_cctx (Coro::State coro) |
2377 | PROTOTYPE: $ |
3691 | PROTOTYPE: $ |
2378 | CODE: |
3692 | CODE: |
2379 | RETVAL = boolSV (!!coro->cctx); |
3693 | /* maybe manage the running flag differently */ |
|
|
3694 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
2380 | OUTPUT: |
3695 | OUTPUT: |
2381 | RETVAL |
3696 | RETVAL |
2382 | |
3697 | |
2383 | int |
3698 | int |
2384 | is_traced (Coro::State coro) |
3699 | is_traced (Coro::State coro) |
… | |
… | |
2404 | |
3719 | |
2405 | void |
3720 | void |
2406 | force_cctx () |
3721 | force_cctx () |
2407 | PROTOTYPE: |
3722 | PROTOTYPE: |
2408 | CODE: |
3723 | CODE: |
2409 | SvSTATE_current->cctx->idle_sp = 0; |
3724 | cctx_current->idle_sp = 0; |
2410 | |
3725 | |
2411 | void |
3726 | void |
2412 | swap_defsv (Coro::State self) |
3727 | swap_defsv (Coro::State self) |
2413 | PROTOTYPE: $ |
3728 | PROTOTYPE: $ |
2414 | ALIAS: |
3729 | ALIAS: |
… | |
… | |
2422 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
3737 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2423 | |
3738 | |
2424 | SV *tmp = *src; *src = *dst; *dst = tmp; |
3739 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2425 | } |
3740 | } |
2426 | |
3741 | |
|
|
3742 | void |
|
|
3743 | cancel (Coro::State self) |
|
|
3744 | CODE: |
|
|
3745 | coro_state_destroy (aTHX_ self); |
|
|
3746 | |
|
|
3747 | SV * |
|
|
3748 | enable_times (int enabled = enable_times) |
|
|
3749 | CODE: |
|
|
3750 | { |
|
|
3751 | RETVAL = boolSV (enable_times); |
|
|
3752 | |
|
|
3753 | if (enabled != enable_times) |
|
|
3754 | { |
|
|
3755 | enable_times = enabled; |
|
|
3756 | |
|
|
3757 | coro_times_update (); |
|
|
3758 | (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current)); |
|
|
3759 | } |
|
|
3760 | } |
|
|
3761 | OUTPUT: |
|
|
3762 | RETVAL |
|
|
3763 | |
|
|
3764 | void |
|
|
3765 | times (Coro::State self) |
|
|
3766 | PPCODE: |
|
|
3767 | { |
|
|
3768 | struct coro *current = SvSTATE (coro_current); |
|
|
3769 | |
|
|
3770 | if (ecb_expect_false (current == self)) |
|
|
3771 | { |
|
|
3772 | coro_times_update (); |
|
|
3773 | coro_times_add (SvSTATE (coro_current)); |
|
|
3774 | } |
|
|
3775 | |
|
|
3776 | EXTEND (SP, 2); |
|
|
3777 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
|
|
3778 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
|
|
3779 | |
|
|
3780 | if (ecb_expect_false (current == self)) |
|
|
3781 | coro_times_sub (SvSTATE (coro_current)); |
|
|
3782 | } |
|
|
3783 | |
|
|
3784 | void |
|
|
3785 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
|
|
3786 | CODE: |
|
|
3787 | { |
|
|
3788 | struct coro *current = SvSTATE_current; |
|
|
3789 | |
|
|
3790 | if (current == coro) |
|
|
3791 | SWAP_SVS (current); |
|
|
3792 | |
|
|
3793 | if (!coro->swap_sv) |
|
|
3794 | coro->swap_sv = newAV (); |
|
|
3795 | |
|
|
3796 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv ))); |
|
|
3797 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv))); |
|
|
3798 | |
|
|
3799 | if (current == coro) |
|
|
3800 | SWAP_SVS (current); |
|
|
3801 | } |
|
|
3802 | |
|
|
3803 | |
2427 | MODULE = Coro::State PACKAGE = Coro |
3804 | MODULE = Coro::State PACKAGE = Coro |
2428 | |
3805 | |
2429 | BOOT: |
3806 | BOOT: |
2430 | { |
3807 | { |
2431 | int i; |
|
|
2432 | |
|
|
2433 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2434 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3808 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2435 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3809 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2436 | |
3810 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
2437 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
3811 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
2438 | SvREADONLY_on (coro_current); |
3812 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3813 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3814 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3815 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
2439 | |
3816 | |
|
|
3817 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
3818 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3819 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3820 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
|
|
3821 | |
2440 | coro_stash = gv_stashpv ("Coro", TRUE); |
3822 | coro_stash = gv_stashpv ("Coro", TRUE); |
2441 | |
3823 | |
2442 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3824 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
2443 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3825 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
2444 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
3826 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
2445 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
3827 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
2446 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
3828 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
2447 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
3829 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
2448 | |
|
|
2449 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
2450 | coro_ready[i] = newAV (); |
|
|
2451 | |
3830 | |
2452 | { |
3831 | { |
2453 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
3832 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2454 | |
3833 | |
2455 | coroapi.schedule = api_schedule; |
3834 | coroapi.schedule = api_schedule; |
|
|
3835 | coroapi.schedule_to = api_schedule_to; |
2456 | coroapi.cede = api_cede; |
3836 | coroapi.cede = api_cede; |
2457 | coroapi.cede_notself = api_cede_notself; |
3837 | coroapi.cede_notself = api_cede_notself; |
2458 | coroapi.ready = api_ready; |
3838 | coroapi.ready = api_ready; |
2459 | coroapi.is_ready = api_is_ready; |
3839 | coroapi.is_ready = api_is_ready; |
2460 | coroapi.nready = coro_nready; |
3840 | coroapi.nready = coro_nready; |
2461 | coroapi.current = coro_current; |
3841 | coroapi.current = coro_current; |
2462 | |
3842 | |
2463 | GCoroAPI = &coroapi; |
3843 | /*GCoroAPI = &coroapi;*/ |
2464 | sv_setiv (sv, (IV)&coroapi); |
3844 | sv_setiv (sv, (IV)&coroapi); |
2465 | SvREADONLY_on (sv); |
3845 | SvREADONLY_on (sv); |
2466 | } |
3846 | } |
2467 | } |
3847 | } |
|
|
3848 | |
|
|
3849 | SV * |
|
|
3850 | async (...) |
|
|
3851 | PROTOTYPE: &@ |
|
|
3852 | CODE: |
|
|
3853 | RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); |
|
|
3854 | api_ready (aTHX_ RETVAL); |
|
|
3855 | OUTPUT: |
|
|
3856 | RETVAL |
|
|
3857 | |
|
|
3858 | void |
|
|
3859 | _destroy (Coro::State coro) |
|
|
3860 | CODE: |
|
|
3861 | /* used by the manager thread */ |
|
|
3862 | coro_state_destroy (aTHX_ coro); |
|
|
3863 | |
|
|
3864 | void |
|
|
3865 | on_destroy (Coro::State coro, SV *cb) |
|
|
3866 | CODE: |
|
|
3867 | coro_push_on_destroy (aTHX_ coro, newSVsv (cb)); |
|
|
3868 | |
|
|
3869 | void |
|
|
3870 | join (...) |
|
|
3871 | CODE: |
|
|
3872 | CORO_EXECUTE_SLF_XS (slf_init_join); |
|
|
3873 | |
|
|
3874 | void |
|
|
3875 | terminate (...) |
|
|
3876 | CODE: |
|
|
3877 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3878 | |
|
|
3879 | void |
|
|
3880 | cancel (...) |
|
|
3881 | CODE: |
|
|
3882 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
|
|
3883 | |
|
|
3884 | int |
|
|
3885 | safe_cancel (Coro::State self, ...) |
|
|
3886 | C_ARGS: aTHX_ self, &ST (1), items - 1 |
2468 | |
3887 | |
2469 | void |
3888 | void |
2470 | schedule (...) |
3889 | schedule (...) |
2471 | CODE: |
3890 | CODE: |
2472 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
3891 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3892 | |
|
|
3893 | void |
|
|
3894 | schedule_to (...) |
|
|
3895 | CODE: |
|
|
3896 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3897 | |
|
|
3898 | void |
|
|
3899 | cede_to (...) |
|
|
3900 | CODE: |
|
|
3901 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
2473 | |
3902 | |
2474 | void |
3903 | void |
2475 | cede (...) |
3904 | cede (...) |
2476 | CODE: |
3905 | CODE: |
2477 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
3906 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
… | |
… | |
2491 | void |
3920 | void |
2492 | _set_readyhook (SV *hook) |
3921 | _set_readyhook (SV *hook) |
2493 | PROTOTYPE: $ |
3922 | PROTOTYPE: $ |
2494 | CODE: |
3923 | CODE: |
2495 | SvREFCNT_dec (coro_readyhook); |
3924 | SvREFCNT_dec (coro_readyhook); |
|
|
3925 | SvGETMAGIC (hook); |
|
|
3926 | if (SvOK (hook)) |
|
|
3927 | { |
2496 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
3928 | coro_readyhook = newSVsv (hook); |
|
|
3929 | CORO_READYHOOK = invoke_sv_ready_hook_helper; |
|
|
3930 | } |
|
|
3931 | else |
|
|
3932 | { |
|
|
3933 | coro_readyhook = 0; |
|
|
3934 | CORO_READYHOOK = 0; |
|
|
3935 | } |
2497 | |
3936 | |
2498 | int |
3937 | int |
2499 | prio (Coro::State coro, int newprio = 0) |
3938 | prio (Coro::State coro, int newprio = 0) |
2500 | PROTOTYPE: $;$ |
3939 | PROTOTYPE: $;$ |
2501 | ALIAS: |
3940 | ALIAS: |
… | |
… | |
2507 | if (items > 1) |
3946 | if (items > 1) |
2508 | { |
3947 | { |
2509 | if (ix) |
3948 | if (ix) |
2510 | newprio = coro->prio - newprio; |
3949 | newprio = coro->prio - newprio; |
2511 | |
3950 | |
2512 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
3951 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
2513 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
3952 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
2514 | |
3953 | |
2515 | coro->prio = newprio; |
3954 | coro->prio = newprio; |
2516 | } |
3955 | } |
2517 | } |
3956 | } |
2518 | OUTPUT: |
3957 | OUTPUT: |
… | |
… | |
2532 | CODE: |
3971 | CODE: |
2533 | RETVAL = coro_nready; |
3972 | RETVAL = coro_nready; |
2534 | OUTPUT: |
3973 | OUTPUT: |
2535 | RETVAL |
3974 | RETVAL |
2536 | |
3975 | |
2537 | # for async_pool speedup |
|
|
2538 | void |
3976 | void |
2539 | _pool_1 (SV *cb) |
3977 | suspend (Coro::State self) |
|
|
3978 | PROTOTYPE: $ |
2540 | CODE: |
3979 | CODE: |
2541 | { |
3980 | self->flags |= CF_SUSPENDED; |
2542 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2543 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2544 | AV *defav = GvAV (PL_defgv); |
|
|
2545 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2546 | AV *invoke_av; |
|
|
2547 | int i, len; |
|
|
2548 | |
3981 | |
2549 | if (!invoke) |
3982 | void |
|
|
3983 | resume (Coro::State self) |
|
|
3984 | PROTOTYPE: $ |
|
|
3985 | CODE: |
|
|
3986 | self->flags &= ~CF_SUSPENDED; |
|
|
3987 | |
|
|
3988 | void |
|
|
3989 | _pool_handler (...) |
|
|
3990 | CODE: |
|
|
3991 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
|
|
3992 | |
|
|
3993 | void |
|
|
3994 | async_pool (SV *cv, ...) |
|
|
3995 | PROTOTYPE: &@ |
|
|
3996 | PPCODE: |
|
|
3997 | { |
|
|
3998 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3999 | AV *av = newAV (); |
|
|
4000 | SV *cb = ST (0); |
|
|
4001 | int i; |
|
|
4002 | |
|
|
4003 | av_extend (av, items - 2); |
|
|
4004 | for (i = 1; i < items; ++i) |
|
|
4005 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
4006 | |
|
|
4007 | if ((SV *)hv == &PL_sv_undef) |
2550 | { |
4008 | { |
2551 | SV *old = PL_diehook; |
4009 | SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1); |
2552 | PL_diehook = 0; |
4010 | hv = (HV *)SvREFCNT_inc_NN (SvRV (sv)); |
2553 | SvREFCNT_dec (old); |
4011 | SvREFCNT_dec (sv); |
2554 | croak ("\3async_pool terminate\2\n"); |
|
|
2555 | } |
4012 | } |
2556 | |
4013 | |
2557 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2558 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2559 | |
|
|
2560 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2561 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2562 | |
|
|
2563 | invoke_av = (AV *)SvRV (invoke); |
|
|
2564 | len = av_len (invoke_av); |
|
|
2565 | |
|
|
2566 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2567 | |
|
|
2568 | if (len > 0) |
|
|
2569 | { |
4014 | { |
2570 | av_fill (defav, len - 1); |
4015 | struct coro *coro = SvSTATE_hv (hv); |
2571 | for (i = 0; i < len; ++i) |
4016 | |
2572 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
4017 | assert (!coro->invoke_cb); |
|
|
4018 | assert (!coro->invoke_av); |
|
|
4019 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
4020 | coro->invoke_av = av; |
2573 | } |
4021 | } |
|
|
4022 | |
|
|
4023 | api_ready (aTHX_ (SV *)hv); |
|
|
4024 | |
|
|
4025 | if (GIMME_V != G_VOID) |
|
|
4026 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
4027 | else |
|
|
4028 | SvREFCNT_dec (hv); |
2574 | } |
4029 | } |
|
|
4030 | |
|
|
4031 | SV * |
|
|
4032 | rouse_cb () |
|
|
4033 | PROTOTYPE: |
|
|
4034 | CODE: |
|
|
4035 | RETVAL = coro_new_rouse_cb (aTHX); |
|
|
4036 | OUTPUT: |
|
|
4037 | RETVAL |
2575 | |
4038 | |
2576 | void |
4039 | void |
2577 | _pool_2 (SV *cb) |
4040 | rouse_wait (...) |
|
|
4041 | PROTOTYPE: ;$ |
|
|
4042 | PPCODE: |
|
|
4043 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
4044 | |
|
|
4045 | void |
|
|
4046 | on_enter (SV *block) |
|
|
4047 | ALIAS: |
|
|
4048 | on_leave = 1 |
|
|
4049 | PROTOTYPE: & |
2578 | CODE: |
4050 | CODE: |
2579 | { |
4051 | { |
2580 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2581 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
4052 | struct coro *coro = SvSTATE_current; |
|
|
4053 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
2582 | |
4054 | |
2583 | sv_setsv (cb, &PL_sv_undef); |
4055 | block = s_get_cv_croak (block); |
2584 | |
4056 | |
2585 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
4057 | if (!*avp) |
2586 | coro->saved_deffh = 0; |
|
|
2587 | |
|
|
2588 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2589 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2590 | { |
|
|
2591 | SV *old = PL_diehook; |
|
|
2592 | PL_diehook = 0; |
|
|
2593 | SvREFCNT_dec (old); |
|
|
2594 | croak ("\3async_pool terminate\2\n"); |
|
|
2595 | } |
|
|
2596 | |
|
|
2597 | av_clear (GvAV (PL_defgv)); |
|
|
2598 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2599 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2600 | |
|
|
2601 | coro->prio = 0; |
|
|
2602 | |
|
|
2603 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2604 | api_trace (aTHX_ coro_current, 0); |
|
|
2605 | |
|
|
2606 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2607 | } |
|
|
2608 | |
|
|
2609 | |
|
|
2610 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2611 | |
|
|
2612 | void |
|
|
2613 | _get_state (SV *self) |
|
|
2614 | PROTOTYPE: $ |
|
|
2615 | PPCODE: |
|
|
2616 | { |
|
|
2617 | AV *defav = GvAV (PL_defgv); |
|
|
2618 | AV *av = newAV (); |
4058 | *avp = newAV (); |
2619 | int i; |
|
|
2620 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2621 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2622 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2623 | SvPOK_only (data_sv); |
|
|
2624 | |
4059 | |
2625 | data->errorno = errno; |
4060 | av_push (*avp, SvREFCNT_inc (block)); |
2626 | data->laststype = PL_laststype; |
|
|
2627 | data->laststatval = PL_laststatval; |
|
|
2628 | data->statcache = PL_statcache; |
|
|
2629 | |
4061 | |
2630 | av_extend (av, AvFILLp (defav) + 1 + 1); |
4062 | if (!ix) |
|
|
4063 | on_enterleave_call (aTHX_ block); |
2631 | |
4064 | |
2632 | for (i = 0; i <= AvFILLp (defav); ++i) |
4065 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
2633 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
4066 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
2634 | |
4067 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
2635 | av_push (av, data_sv); |
|
|
2636 | |
|
|
2637 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2638 | |
|
|
2639 | api_ready (aTHX_ self); |
|
|
2640 | } |
|
|
2641 | |
|
|
2642 | void |
|
|
2643 | _set_state (SV *state) |
|
|
2644 | PROTOTYPE: $ |
|
|
2645 | PPCODE: |
|
|
2646 | { |
|
|
2647 | AV *av = (AV *)SvRV (state); |
|
|
2648 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2649 | int i; |
|
|
2650 | |
|
|
2651 | errno = data->errorno; |
|
|
2652 | PL_laststype = data->laststype; |
|
|
2653 | PL_laststatval = data->laststatval; |
|
|
2654 | PL_statcache = data->statcache; |
|
|
2655 | |
|
|
2656 | EXTEND (SP, AvFILLp (av)); |
|
|
2657 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2658 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2659 | } |
|
|
2660 | |
|
|
2661 | |
|
|
2662 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2663 | |
|
|
2664 | BOOT: |
|
|
2665 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2666 | |
|
|
2667 | void |
|
|
2668 | _schedule (...) |
|
|
2669 | CODE: |
|
|
2670 | { |
|
|
2671 | static int incede; |
|
|
2672 | |
|
|
2673 | api_cede_notself (aTHX); |
|
|
2674 | |
|
|
2675 | ++incede; |
|
|
2676 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2677 | ; |
|
|
2678 | |
|
|
2679 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2680 | if (coro_nready >= incede) |
|
|
2681 | { |
|
|
2682 | PUSHMARK (SP); |
|
|
2683 | PUTBACK; |
|
|
2684 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2685 | SPAGAIN; |
|
|
2686 | } |
|
|
2687 | |
|
|
2688 | --incede; |
|
|
2689 | } |
4068 | } |
2690 | |
4069 | |
2691 | |
4070 | |
2692 | MODULE = Coro::State PACKAGE = PerlIO::cede |
4071 | MODULE = Coro::State PACKAGE = PerlIO::cede |
2693 | |
4072 | |
2694 | BOOT: |
4073 | BOOT: |
2695 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
4074 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2696 | |
4075 | |
|
|
4076 | |
2697 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
4077 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
2698 | |
4078 | |
2699 | SV * |
4079 | SV * |
2700 | new (SV *klass, SV *count_ = 0) |
4080 | new (SV *klass, SV *count = 0) |
2701 | CODE: |
4081 | CODE: |
2702 | { |
4082 | { |
2703 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
4083 | int semcnt = 1; |
2704 | AV *av = newAV (); |
4084 | |
2705 | av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); |
4085 | if (count) |
2706 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
4086 | { |
|
|
4087 | SvGETMAGIC (count); |
|
|
4088 | |
|
|
4089 | if (SvOK (count)) |
|
|
4090 | semcnt = SvIV (count); |
|
|
4091 | } |
|
|
4092 | |
|
|
4093 | RETVAL = sv_bless ( |
|
|
4094 | coro_waitarray_new (aTHX_ semcnt), |
|
|
4095 | GvSTASH (CvGV (cv)) |
|
|
4096 | ); |
2707 | } |
4097 | } |
|
|
4098 | OUTPUT: |
|
|
4099 | RETVAL |
|
|
4100 | |
|
|
4101 | # helper for Coro::Channel and others |
|
|
4102 | SV * |
|
|
4103 | _alloc (int count) |
|
|
4104 | CODE: |
|
|
4105 | RETVAL = coro_waitarray_new (aTHX_ count); |
2708 | OUTPUT: |
4106 | OUTPUT: |
2709 | RETVAL |
4107 | RETVAL |
2710 | |
4108 | |
2711 | SV * |
4109 | SV * |
2712 | count (SV *self) |
4110 | count (SV *self) |
… | |
… | |
2721 | adjust = 1 |
4119 | adjust = 1 |
2722 | CODE: |
4120 | CODE: |
2723 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
4121 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
2724 | |
4122 | |
2725 | void |
4123 | void |
2726 | down (SV *self) |
4124 | down (...) |
2727 | CODE: |
4125 | CODE: |
2728 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
4126 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
4127 | |
|
|
4128 | void |
|
|
4129 | wait (...) |
|
|
4130 | CODE: |
|
|
4131 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
2729 | |
4132 | |
2730 | void |
4133 | void |
2731 | try (SV *self) |
4134 | try (SV *self) |
2732 | PPCODE: |
4135 | PPCODE: |
2733 | { |
4136 | { |
… | |
… | |
2745 | XSRETURN_NO; |
4148 | XSRETURN_NO; |
2746 | } |
4149 | } |
2747 | |
4150 | |
2748 | void |
4151 | void |
2749 | waiters (SV *self) |
4152 | waiters (SV *self) |
2750 | CODE: |
4153 | PPCODE: |
2751 | { |
4154 | { |
2752 | AV *av = (AV *)SvRV (self); |
4155 | AV *av = (AV *)SvRV (self); |
|
|
4156 | int wcount = AvFILLp (av) + 1 - 1; |
2753 | |
4157 | |
2754 | if (GIMME_V == G_SCALAR) |
4158 | if (GIMME_V == G_SCALAR) |
2755 | XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
4159 | XPUSHs (sv_2mortal (newSViv (wcount))); |
2756 | else |
4160 | else |
2757 | { |
4161 | { |
2758 | int i; |
4162 | int i; |
2759 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
4163 | EXTEND (SP, wcount); |
2760 | for (i = 1; i <= AvFILLp (av); ++i) |
4164 | for (i = 1; i <= wcount; ++i) |
2761 | PUSHs (newSVsv (AvARRAY (av)[i])); |
4165 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
2762 | } |
4166 | } |
2763 | } |
4167 | } |
2764 | |
4168 | |
|
|
4169 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
4170 | |
|
|
4171 | void |
|
|
4172 | _may_delete (SV *sem, int count, unsigned int extra_refs) |
|
|
4173 | PPCODE: |
|
|
4174 | { |
|
|
4175 | AV *av = (AV *)SvRV (sem); |
|
|
4176 | |
|
|
4177 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
|
|
4178 | && AvFILLp (av) == 0 /* no waiters, just count */ |
|
|
4179 | && SvIV (AvARRAY (av)[0]) == count) |
|
|
4180 | XSRETURN_YES; |
|
|
4181 | |
|
|
4182 | XSRETURN_NO; |
|
|
4183 | } |
|
|
4184 | |
|
|
4185 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
4186 | |
|
|
4187 | SV * |
|
|
4188 | new (SV *klass) |
|
|
4189 | CODE: |
|
|
4190 | RETVAL = sv_bless ( |
|
|
4191 | coro_waitarray_new (aTHX_ 0), |
|
|
4192 | GvSTASH (CvGV (cv)) |
|
|
4193 | ); |
|
|
4194 | OUTPUT: |
|
|
4195 | RETVAL |
|
|
4196 | |
|
|
4197 | void |
|
|
4198 | wait (...) |
|
|
4199 | CODE: |
|
|
4200 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
4201 | |
|
|
4202 | void |
|
|
4203 | broadcast (SV *self) |
|
|
4204 | CODE: |
|
|
4205 | { |
|
|
4206 | AV *av = (AV *)SvRV (self); |
|
|
4207 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
4208 | } |
|
|
4209 | |
|
|
4210 | void |
|
|
4211 | send (SV *self) |
|
|
4212 | CODE: |
|
|
4213 | { |
|
|
4214 | AV *av = (AV *)SvRV (self); |
|
|
4215 | |
|
|
4216 | if (AvFILLp (av)) |
|
|
4217 | coro_signal_wake (aTHX_ av, 1); |
|
|
4218 | else |
|
|
4219 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
4220 | } |
|
|
4221 | |
|
|
4222 | IV |
|
|
4223 | awaited (SV *self) |
|
|
4224 | CODE: |
|
|
4225 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
4226 | OUTPUT: |
|
|
4227 | RETVAL |
|
|
4228 | |
|
|
4229 | |
|
|
4230 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
4231 | |
|
|
4232 | BOOT: |
|
|
4233 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
4234 | |
|
|
4235 | void |
|
|
4236 | _schedule (...) |
|
|
4237 | CODE: |
|
|
4238 | { |
|
|
4239 | static int incede; |
|
|
4240 | |
|
|
4241 | api_cede_notself (aTHX); |
|
|
4242 | |
|
|
4243 | ++incede; |
|
|
4244 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
4245 | ; |
|
|
4246 | |
|
|
4247 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
4248 | if (coro_nready >= incede) |
|
|
4249 | { |
|
|
4250 | PUSHMARK (SP); |
|
|
4251 | PUTBACK; |
|
|
4252 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
4253 | } |
|
|
4254 | |
|
|
4255 | --incede; |
|
|
4256 | } |
|
|
4257 | |
|
|
4258 | |
|
|
4259 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
4260 | |
|
|
4261 | void |
|
|
4262 | _register (char *target, char *proto, SV *req) |
|
|
4263 | CODE: |
|
|
4264 | { |
|
|
4265 | SV *req_cv = s_get_cv_croak (req); |
|
|
4266 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
4267 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
4268 | sv_setpv ((SV *)slf_cv, proto); |
|
|
4269 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
4270 | } |
|
|
4271 | |
|
|
4272 | MODULE = Coro::State PACKAGE = Coro::Select |
|
|
4273 | |
|
|
4274 | void |
|
|
4275 | patch_pp_sselect () |
|
|
4276 | CODE: |
|
|
4277 | if (!coro_old_pp_sselect) |
|
|
4278 | { |
|
|
4279 | coro_select_select = (SV *)get_cv ("Coro::Select::select", 0); |
|
|
4280 | coro_old_pp_sselect = PL_ppaddr [OP_SSELECT]; |
|
|
4281 | PL_ppaddr [OP_SSELECT] = coro_pp_sselect; |
|
|
4282 | } |
|
|
4283 | |
|
|
4284 | void |
|
|
4285 | unpatch_pp_sselect () |
|
|
4286 | CODE: |
|
|
4287 | if (coro_old_pp_sselect) |
|
|
4288 | { |
|
|
4289 | PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; |
|
|
4290 | coro_old_pp_sselect = 0; |
|
|
4291 | } |
|
|
4292 | |