ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Coro/State.xs
(Generate patch)

Comparing Coro/Coro/State.xs (file contents):
Revision 1.251 by root, Thu Oct 30 09:44:31 2008 UTC vs.
Revision 1.265 by root, Fri Nov 14 02:42:26 2008 UTC

… …
46# define BOOT_PAGESIZE (void)0 46# define BOOT_PAGESIZE (void)0
47#endif 47#endif
48 48
49#if CORO_USE_VALGRIND 49#if CORO_USE_VALGRIND
50# include <valgrind/valgrind.h> 50# include <valgrind/valgrind.h>
51# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
52#else
53# define REGISTER_STACK(cctx,start,end)
54#endif 51#endif
55 52
56/* the maximum number of idle cctx that will be pooled */ 53/* the maximum number of idle cctx that will be pooled */
57#define MAX_IDLE_CCTX 8 54static int cctx_max_idle = 4;
58 55
59#define PERL_VERSION_ATLEAST(a,b,c) \ 56#define PERL_VERSION_ATLEAST(a,b,c) \
60 (PERL_REVISION > (a) \ 57 (PERL_REVISION > (a) \
61 || (PERL_REVISION == (a) \ 58 || (PERL_REVISION == (a) \
62 && (PERL_VERSION > (b) \ 59 && (PERL_VERSION > (b) \
… …
126 123
127#define IN_DESTRUCT (PL_main_cv == Nullcv) 124#define IN_DESTRUCT (PL_main_cv == Nullcv)
128 125
129#if __GNUC__ >= 3 126#if __GNUC__ >= 3
130# define attribute(x) __attribute__(x) 127# define attribute(x) __attribute__(x)
131# define BARRIER __asm__ __volatile__ ("" : : : "memory")
132# define expect(expr,value) __builtin_expect ((expr),(value)) 128# define expect(expr,value) __builtin_expect ((expr),(value))
129# define INLINE static inline
133#else 130#else
134# define attribute(x) 131# define attribute(x)
135# define BARRIER
136# define expect(expr,value) (expr) 132# define expect(expr,value) (expr)
133# define INLINE static
137#endif 134#endif
138 135
139#define expect_false(expr) expect ((expr) != 0, 0) 136#define expect_false(expr) expect ((expr) != 0, 0)
140#define expect_true(expr) expect ((expr) != 0, 1) 137#define expect_true(expr) expect ((expr) != 0, 1)
141 138
142#define NOINLINE attribute ((noinline)) 139#define NOINLINE attribute ((noinline))
143 140
144#include "CoroAPI.h" 141#include "CoroAPI.h"
145 142
146#ifdef USE_ITHREADS 143#ifdef USE_ITHREADS
144
147static perl_mutex coro_mutex; 145static perl_mutex coro_lock;
148# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) 146# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
149# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) 147# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0)
148# if CORO_PTHREAD
149static void *coro_thx;
150# endif
151
150#else 152#else
153
151# define LOCK (void)0 154# define LOCK (void)0
152# define UNLOCK (void)0 155# define UNLOCK (void)0
156
153#endif 157#endif
158
159# undef LOCK
160# define LOCK (void)0
161# undef UNLOCK
162# define UNLOCK (void)0
154 163
155/* helper storage struct for Coro::AIO */ 164/* helper storage struct for Coro::AIO */
156struct io_state 165struct io_state
157{ 166{
158 AV *res; 167 AV *res;
159 int errorno; 168 int errorno;
160 I32 laststype; 169 I32 laststype; /* U16 in 5.10.0 */
161 int laststatval; 170 int laststatval;
162 Stat_t statcache; 171 Stat_t statcache;
163}; 172};
164 173
165static double (*nvtime)(); /* so why doesn't it take void? */ 174static double (*nvtime)(); /* so why doesn't it take void? */
166 175
176static U32 cctx_gen;
167static size_t coro_stacksize = CORO_STACKSIZE; 177static size_t cctx_stacksize = CORO_STACKSIZE;
168static struct CoroAPI coroapi; 178static struct CoroAPI coroapi;
169static AV *main_mainstack; /* used to differentiate between $main and others */ 179static AV *main_mainstack; /* used to differentiate between $main and others */
170static JMPENV *main_top_env; 180static JMPENV *main_top_env;
171static HV *coro_state_stash, *coro_stash; 181static HV *coro_state_stash, *coro_stash;
172static volatile SV *coro_mortal; /* will be freed after next transfer */ 182static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
183static volatile struct coro *transfer_next;
184
185struct transfer_args
186{
187 struct coro *prev, *next;
188};
173 189
174static GV *irsgv; /* $/ */ 190static GV *irsgv; /* $/ */
175static GV *stdoutgv; /* *STDOUT */ 191static GV *stdoutgv; /* *STDOUT */
176static SV *rv_diehook; 192static SV *rv_diehook;
177static SV *rv_warnhook; 193static SV *rv_warnhook;
… …
209 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 225 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
210 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 226 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */
211 JMPENV *top_env; 227 JMPENV *top_env;
212 coro_context cctx; 228 coro_context cctx;
213 229
230 U32 gen;
214#if CORO_USE_VALGRIND 231#if CORO_USE_VALGRIND
215 int valgrind_id; 232 int valgrind_id;
216#endif 233#endif
217 unsigned char flags; 234 unsigned char flags;
218} coro_cctx; 235} coro_cctx;
… …
278#define PRIO_MIN -4 295#define PRIO_MIN -4
279 296
280/* for Coro.pm */ 297/* for Coro.pm */
281static SV *coro_current; 298static SV *coro_current;
282static SV *coro_readyhook; 299static SV *coro_readyhook;
283static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 300static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
284static int coro_nready; 301static int coro_nready;
285static struct coro *coro_first; 302static struct coro *coro_first;
286 303
287/** lowlevel stuff **********************************************************/ 304/** lowlevel stuff **********************************************************/
288 305
… …
383static MGVTBL coro_cv_vtbl = { 400static MGVTBL coro_cv_vtbl = {
384 0, 0, 0, 0, 401 0, 0, 0, 0,
385 coro_cv_free 402 coro_cv_free
386}; 403};
387 404
388#define CORO_MAGIC(sv,type) \ 405#define CORO_MAGIC(sv, type) \
389 SvMAGIC (sv) \ 406 SvMAGIC (sv) \
390 ? SvMAGIC (sv)->mg_type == type \ 407 ? SvMAGIC (sv)->mg_type == type \
391 ? SvMAGIC (sv) \ 408 ? SvMAGIC (sv) \
392 : mg_find (sv, type) \ 409 : mg_find (sv, type) \
393 : 0 410 : 0
394 411
395#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 412#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
396#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) 413#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
397 414
398static struct coro * 415INLINE struct coro *
399SvSTATE_ (pTHX_ SV *coro) 416SvSTATE_ (pTHX_ SV *coro)
400{ 417{
401 HV *stash; 418 HV *stash;
402 MAGIC *mg; 419 MAGIC *mg;
403 420
… …
628 645
629/* 646/*
630 * destroy the stacks, the callchain etc... 647 * destroy the stacks, the callchain etc...
631 */ 648 */
632static void 649static void
633coro_destroy_stacks (pTHX) 650coro_destruct_stacks (pTHX)
634{ 651{
635 while (PL_curstackinfo->si_next) 652 while (PL_curstackinfo->si_next)
636 PL_curstackinfo = PL_curstackinfo->si_next; 653 PL_curstackinfo = PL_curstackinfo->si_next;
637 654
638 while (PL_curstackinfo) 655 while (PL_curstackinfo)
… …
692#endif 709#endif
693 } 710 }
694 } 711 }
695 712
696 return rss; 713 return rss;
714}
715
716/** set stacklevel support **************************************************/
717
718/* we sometimes need to create the effect of pp_set_stacklevel calling us */
719#define SSL_HEAD (void)0
720/* we somtimes need to create the effect of leaving via pp_set_stacklevel */
721#define SSL_TAIL set_stacklevel_tail (aTHX)
722
723INLINE void
724set_stacklevel_tail (pTHX)
725{
726 dSP;
727 int gimme = GIMME_V;
728
729 if (gimme == G_SCALAR)
730 XPUSHs (&PL_sv_undef);
731
732 PUTBACK;
697} 733}
698 734
699/** coroutine stack handling ************************************************/ 735/** coroutine stack handling ************************************************/
700 736
701static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); 737static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg);
… …
820 PL_rs = newSVsv (GvSV (irsgv)); 856 PL_rs = newSVsv (GvSV (irsgv));
821 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 857 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
822 858
823 { 859 {
824 dSP; 860 dSP;
825 LOGOP myop; 861 UNOP myop;
826 862
827 Zero (&myop, 1, LOGOP); 863 Zero (&myop, 1, UNOP);
828 myop.op_next = Nullop; 864 myop.op_next = Nullop;
829 myop.op_flags = OPf_WANT_VOID; 865 myop.op_flags = OPf_WANT_VOID;
830 866
831 PUSHMARK (SP); 867 PUSHMARK (SP);
832 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 868 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
… …
835 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 871 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
836 SPAGAIN; 872 SPAGAIN;
837 } 873 }
838 874
839 /* this newly created coroutine might be run on an existing cctx which most 875 /* this newly created coroutine might be run on an existing cctx which most
840 * likely was suspended in set_stacklevel, called from entersub. 876 * likely was suspended in set_stacklevel, called from pp_set_stacklevel,
841 * set_stacklevl doesn't do anything on return, but entersub does LEAVE, 877 * so we have to emulate entering pp_set_stacklevel here.
842 * so we ENTER here for symmetry
843 */ 878 */
844 ENTER; 879 SSL_HEAD;
845} 880}
846 881
847static void 882static void
848coro_destroy (pTHX_ struct coro *coro) 883coro_destruct (pTHX_ struct coro *coro)
849{ 884{
850 if (!IN_DESTRUCT) 885 if (!IN_DESTRUCT)
851 { 886 {
852 /* restore all saved variables and stuff */ 887 /* restore all saved variables and stuff */
853 LEAVE_SCOPE (0); 888 LEAVE_SCOPE (0);
… …
875 SvREFCNT_dec (PL_warnhook); 910 SvREFCNT_dec (PL_warnhook);
876 911
877 SvREFCNT_dec (coro->saved_deffh); 912 SvREFCNT_dec (coro->saved_deffh);
878 SvREFCNT_dec (coro->throw); 913 SvREFCNT_dec (coro->throw);
879 914
880 coro_destroy_stacks (aTHX); 915 coro_destruct_stacks (aTHX);
881} 916}
882 917
883static void 918INLINE void
884free_coro_mortal (pTHX) 919free_coro_mortal (pTHX)
885{ 920{
886 if (expect_true (coro_mortal)) 921 if (expect_true (coro_mortal))
887 { 922 {
888 SvREFCNT_dec (coro_mortal); 923 SvREFCNT_dec (coro_mortal);
… …
1012 1047
1013 TAINT_NOT; 1048 TAINT_NOT;
1014 return 0; 1049 return 0;
1015} 1050}
1016 1051
1052static void
1053prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx)
1054{
1055 ta->prev = (struct coro *)cctx;
1056 ta->next = 0;
1057}
1058
1017/* inject a fake call to Coro::State::_cctx_init into the execution */ 1059/* inject a fake call to Coro::State::_cctx_init into the execution */
1018/* _cctx_init should be careful, as it could be called at almost any time */ 1060/* _cctx_init should be careful, as it could be called at almost any time */
1019/* during execution of a perl program */ 1061/* during execution of a perl program */
1062/* also initialises PL_top_env */
1020static void NOINLINE 1063static void NOINLINE
1021cctx_prepare (pTHX_ coro_cctx *cctx) 1064cctx_prepare (pTHX_ coro_cctx *cctx)
1022{ 1065{
1023 dSP; 1066 dSP;
1024 LOGOP myop; 1067 UNOP myop;
1025 1068
1026 PL_top_env = &PL_start_env; 1069 PL_top_env = &PL_start_env;
1027 1070
1028 if (cctx->flags & CC_TRACE) 1071 if (cctx->flags & CC_TRACE)
1029 PL_runops = runops_trace; 1072 PL_runops = runops_trace;
1030 1073
1031 Zero (&myop, 1, LOGOP); 1074 Zero (&myop, 1, UNOP);
1032 myop.op_next = PL_op; 1075 myop.op_next = PL_op;
1033 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 1076 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
1034 1077
1035 PUSHMARK (SP); 1078 PUSHMARK (SP);
1036 EXTEND (SP, 2); 1079 EXTEND (SP, 2);
1037 PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); 1080 PUSHs (sv_2mortal (newSViv ((IV)cctx)));
1038 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); 1081 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
1039 PUTBACK; 1082 PUTBACK;
1040 PL_op = (OP *)&myop; 1083 PL_op = (OP *)&myop;
1041 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 1084 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
1042 SPAGAIN; 1085 SPAGAIN;
1043} 1086}
1044 1087
1088/* the tail of transfer: execute stuff we can only do after a transfer */
1089INLINE void
1090transfer_tail (pTHX)
1091{
1092 struct coro *next = (struct coro *)transfer_next;
1093 assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
1094 assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
1095
1096 free_coro_mortal (aTHX);
1097 UNLOCK;
1098
1099 if (expect_false (next->throw))
1100 {
1101 SV *exception = sv_2mortal (next->throw);
1102
1103 next->throw = 0;
1104 sv_setsv (ERRSV, exception);
1105 croak (0);
1106 }
1107}
1108
1045/* 1109/*
1046 * this is a _very_ stripped down perl interpreter ;) 1110 * this is a _very_ stripped down perl interpreter ;)
1047 */ 1111 */
1048static void 1112static void
1049cctx_run (void *arg) 1113cctx_run (void *arg)
1050{ 1114{
1115#ifdef USE_ITHREADS
1116# if CORO_PTHREAD
1117 PERL_SET_CONTEXT (coro_thx);
1118# endif
1119#endif
1120 {
1051 dTHX; 1121 dTHX;
1052 1122
1053 /* cctx_run is the alternative tail of transfer(), so unlock here. */ 1123 /* we are the alternative tail to pp_set_stacklevel */
1054 UNLOCK; 1124 /* so do the same things here */
1125 SSL_TAIL;
1055 1126
1056 /* we now skip the entersub that lead to transfer() */ 1127 /* we now skip the op that did lead to transfer() */
1057 PL_op = PL_op->op_next; 1128 PL_op = PL_op->op_next;
1058 1129
1059 /* inject a fake subroutine call to cctx_init */ 1130 /* inject a fake subroutine call to cctx_init */
1060 cctx_prepare (aTHX_ (coro_cctx *)arg); 1131 cctx_prepare (aTHX_ (coro_cctx *)arg);
1061 1132
1133 /* cctx_run is the alternative tail of transfer() */
1134 transfer_tail (aTHX);
1135
1062 /* somebody or something will hit me for both perl_run and PL_restartop */ 1136 /* somebody or something will hit me for both perl_run and PL_restartop */
1063 PL_restartop = PL_op; 1137 PL_restartop = PL_op;
1064 perl_run (PL_curinterp); 1138 perl_run (PL_curinterp);
1065 1139
1066 /* 1140 /*
1067 * If perl-run returns we assume exit() was being called or the coro 1141 * If perl-run returns we assume exit() was being called or the coro
1068 * fell off the end, which seems to be the only valid (non-bug) 1142 * fell off the end, which seems to be the only valid (non-bug)
1069 * reason for perl_run to return. We try to exit by jumping to the 1143 * reason for perl_run to return. We try to exit by jumping to the
1070 * bootstrap-time "top" top_env, as we cannot restore the "main" 1144 * bootstrap-time "top" top_env, as we cannot restore the "main"
1071 * coroutine as Coro has no such concept 1145 * coroutine as Coro has no such concept
1072 */ 1146 */
1073 PL_top_env = main_top_env; 1147 PL_top_env = main_top_env;
1074 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1148 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1149 }
1075} 1150}
1076 1151
1077static coro_cctx * 1152static coro_cctx *
1078cctx_new () 1153cctx_new ()
1079{ 1154{
1080 coro_cctx *cctx; 1155 coro_cctx *cctx;
1156
1157 ++cctx_count;
1158 New (0, cctx, 1, coro_cctx);
1159
1160 cctx->gen = cctx_gen;
1161 cctx->flags = 0;
1162 cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
1163
1164 return cctx;
1165}
1166
1167/* create a new cctx only suitable as source */
1168static coro_cctx *
1169cctx_new_empty ()
1170{
1171 coro_cctx *cctx = cctx_new ();
1172
1173 cctx->sptr = 0;
1174 coro_create (&cctx->cctx, 0, 0, 0, 0);
1175
1176 return cctx;
1177}
1178
1179/* create a new cctx suitable as destination/running a perl interpreter */
1180static coro_cctx *
1181cctx_new_run ()
1182{
1183 coro_cctx *cctx = cctx_new ();
1081 void *stack_start; 1184 void *stack_start;
1082 size_t stack_size; 1185 size_t stack_size;
1083 1186
1084 ++cctx_count;
1085
1086 Newz (0, cctx, 1, coro_cctx);
1087
1088#if HAVE_MMAP 1187#if HAVE_MMAP
1089 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 1188 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1090 /* mmap supposedly does allocate-on-write for us */ 1189 /* mmap supposedly does allocate-on-write for us */
1091 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 1190 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1092 1191
1093 if (cctx->sptr != (void *)-1) 1192 if (cctx->sptr != (void *)-1)
1094 { 1193 {
1095# if CORO_STACKGUARD 1194 #if CORO_STACKGUARD
1096 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 1195 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1097# endif 1196 #endif
1098 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 1197 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1099 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 1198 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1100 cctx->flags |= CC_MAPPED; 1199 cctx->flags |= CC_MAPPED;
1101 } 1200 }
1102 else 1201 else
1103#endif 1202#endif
1104 { 1203 {
1105 cctx->ssize = coro_stacksize * (long)sizeof (long); 1204 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1106 New (0, cctx->sptr, coro_stacksize, long); 1205 New (0, cctx->sptr, cctx_stacksize, long);
1107 1206
1108 if (!cctx->sptr) 1207 if (!cctx->sptr)
1109 { 1208 {
1110 perror ("FATAL: unable to allocate stack for coroutine"); 1209 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1111 _exit (EXIT_FAILURE); 1210 _exit (EXIT_FAILURE);
1112 } 1211 }
1113 1212
1114 stack_start = cctx->sptr; 1213 stack_start = cctx->sptr;
1115 stack_size = cctx->ssize; 1214 stack_size = cctx->ssize;
1116 } 1215 }
1117 1216
1118 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); 1217 #if CORO_USE_VALGRIND
1218 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1219 #endif
1220
1119 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1221 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
1120 1222
1121 return cctx; 1223 return cctx;
1122} 1224}
1123 1225
… …
1126{ 1228{
1127 if (!cctx) 1229 if (!cctx)
1128 return; 1230 return;
1129 1231
1130 --cctx_count; 1232 --cctx_count;
1233 coro_destroy (&cctx->cctx);
1131 1234
1235 /* coro_transfer creates new, empty cctx's */
1236 if (cctx->sptr)
1237 {
1132#if CORO_USE_VALGRIND 1238 #if CORO_USE_VALGRIND
1133 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 1239 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1134#endif 1240 #endif
1135 1241
1136#if HAVE_MMAP 1242#if HAVE_MMAP
1137 if (cctx->flags & CC_MAPPED) 1243 if (cctx->flags & CC_MAPPED)
1138 munmap (cctx->sptr, cctx->ssize); 1244 munmap (cctx->sptr, cctx->ssize);
1139 else 1245 else
1140#endif 1246#endif
1141 Safefree (cctx->sptr); 1247 Safefree (cctx->sptr);
1248 }
1142 1249
1143 Safefree (cctx); 1250 Safefree (cctx);
1144} 1251}
1145 1252
1146/* wether this cctx should be destructed */ 1253/* wether this cctx should be destructed */
1147#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) 1254#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1148 1255
1149static coro_cctx * 1256static coro_cctx *
1150cctx_get (pTHX) 1257cctx_get (pTHX)
1151{ 1258{
1152 while (expect_true (cctx_first)) 1259 while (expect_true (cctx_first))
… …
1159 return cctx; 1266 return cctx;
1160 1267
1161 cctx_destroy (cctx); 1268 cctx_destroy (cctx);
1162 } 1269 }
1163 1270
1164 return cctx_new (); 1271 return cctx_new_run ();
1165} 1272}
1166 1273
1167static void 1274static void
1168cctx_put (coro_cctx *cctx) 1275cctx_put (coro_cctx *cctx)
1169{ 1276{
1277 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1278
1170 /* free another cctx if overlimit */ 1279 /* free another cctx if overlimit */
1171 if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) 1280 if (expect_false (cctx_idle >= cctx_max_idle))
1172 { 1281 {
1173 coro_cctx *first = cctx_first; 1282 coro_cctx *first = cctx_first;
1174 cctx_first = first->next; 1283 cctx_first = first->next;
1175 --cctx_idle; 1284 --cctx_idle;
1176 1285
… …
1208/* always use the TRANSFER macro */ 1317/* always use the TRANSFER macro */
1209static void NOINLINE 1318static void NOINLINE
1210transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1319transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1211{ 1320{
1212 dSTACKLEVEL; 1321 dSTACKLEVEL;
1213 static volatile int has_throw;
1214 1322
1215 /* sometimes transfer is only called to set idle_sp */ 1323 /* sometimes transfer is only called to set idle_sp */
1216 if (expect_false (!next)) 1324 if (expect_false (!next))
1217 { 1325 {
1218 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1326 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
… …
1222 { 1330 {
1223 coro_cctx *prev__cctx; 1331 coro_cctx *prev__cctx;
1224 1332
1225 if (expect_false (prev->flags & CF_NEW)) 1333 if (expect_false (prev->flags & CF_NEW))
1226 { 1334 {
1227 /* create a new empty context */ 1335 /* create a new empty/source context */
1228 Newz (0, prev->cctx, 1, coro_cctx); 1336 prev->cctx = cctx_new_empty ();
1229 prev->flags &= ~CF_NEW; 1337 prev->flags &= ~CF_NEW;
1230 prev->flags |= CF_RUNNING; 1338 prev->flags |= CF_RUNNING;
1231 } 1339 }
1232 1340
1233 prev->flags &= ~CF_RUNNING; 1341 prev->flags &= ~CF_RUNNING;
… …
1248 else 1356 else
1249 load_perl (aTHX_ next); 1357 load_perl (aTHX_ next);
1250 1358
1251 prev__cctx = prev->cctx; 1359 prev__cctx = prev->cctx;
1252 1360
1253 /* possibly "free" the cctx */ 1361 /* possibly untie and reuse the cctx */
1254 if (expect_true ( 1362 if (expect_true (
1255 prev__cctx->idle_sp == STACKLEVEL 1363 prev__cctx->idle_sp == STACKLEVEL
1256 && !(prev__cctx->flags & CC_TRACE) 1364 && !(prev__cctx->flags & CC_TRACE)
1257 && !force_cctx 1365 && !force_cctx
1258 )) 1366 ))
1259 { 1367 {
1260 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1368 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1261 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1369 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1262 1370
1263 prev->cctx = 0; 1371 prev->cctx = 0;
1264 1372
1265 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1373 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1266 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1374 /* without this the next cctx_get might destroy the prev__cctx while still in use */
… …
1274 ++next->usecount; 1382 ++next->usecount;
1275 1383
1276 if (expect_true (!next->cctx)) 1384 if (expect_true (!next->cctx))
1277 next->cctx = cctx_get (aTHX); 1385 next->cctx = cctx_get (aTHX);
1278 1386
1279 has_throw = !!next->throw; 1387 assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
1388 transfer_next = next;
1280 1389
1281 if (expect_false (prev__cctx != next->cctx)) 1390 if (expect_false (prev__cctx != next->cctx))
1282 { 1391 {
1283 prev__cctx->top_env = PL_top_env; 1392 prev__cctx->top_env = PL_top_env;
1284 PL_top_env = next->cctx->top_env; 1393 PL_top_env = next->cctx->top_env;
1285 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1394 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1286 } 1395 }
1287 1396
1288 free_coro_mortal (aTHX); 1397 transfer_tail (aTHX);
1289 UNLOCK;
1290
1291 if (expect_false (has_throw))
1292 {
1293 struct coro *coro = SvSTATE (coro_current);
1294
1295 if (coro->throw)
1296 {
1297 SV *exception = coro->throw;
1298 coro->throw = 0;
1299 sv_setsv (ERRSV, exception);
1300 croak (0);
1301 }
1302 }
1303 } 1398 }
1304} 1399}
1305
1306struct transfer_args
1307{
1308 struct coro *prev, *next;
1309};
1310 1400
1311#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1401#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1312#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1402#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1313 1403
1314/** high level stuff ********************************************************/ 1404/** high level stuff ********************************************************/
… …
1340 croak ("FATAL: tried to destroy currently running coroutine"); 1430 croak ("FATAL: tried to destroy currently running coroutine");
1341 1431
1342 save_perl (aTHX_ &temp); 1432 save_perl (aTHX_ &temp);
1343 load_perl (aTHX_ coro); 1433 load_perl (aTHX_ coro);
1344 1434
1345 coro_destroy (aTHX_ coro); 1435 coro_destruct (aTHX_ coro);
1346 1436
1347 load_perl (aTHX_ &temp); 1437 load_perl (aTHX_ &temp);
1348 1438
1349 coro->slot = 0; 1439 coro->slot = 0;
1350 } 1440 }
… …
1487 1577
1488static int 1578static int
1489api_is_ready (SV *coro_sv) 1579api_is_ready (SV *coro_sv)
1490{ 1580{
1491 dTHX; 1581 dTHX;
1582
1492 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1583 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1493} 1584}
1494 1585
1495static void 1586INLINE void
1496prepare_schedule (pTHX_ struct transfer_args *ta) 1587prepare_schedule (pTHX_ struct transfer_args *ta)
1497{ 1588{
1498 SV *prev_sv, *next_sv; 1589 SV *prev_sv, *next_sv;
1499 1590
1500 for (;;) 1591 for (;;)
… …
1526 /* cannot transfer to destroyed coros, skip and look for next */ 1617 /* cannot transfer to destroyed coros, skip and look for next */
1527 if (expect_false (ta->next->flags & CF_DESTROYED)) 1618 if (expect_false (ta->next->flags & CF_DESTROYED))
1528 { 1619 {
1529 UNLOCK; 1620 UNLOCK;
1530 SvREFCNT_dec (next_sv); 1621 SvREFCNT_dec (next_sv);
1531 /* coro_nready is already taken care of by destroy */ 1622 /* coro_nready has already been taken care of by destroy */
1532 continue; 1623 continue;
1533 } 1624 }
1534 1625
1535 --coro_nready; 1626 --coro_nready;
1536 UNLOCK; 1627 UNLOCK;
… …
1539 1630
1540 /* free this only after the transfer */ 1631 /* free this only after the transfer */
1541 prev_sv = SvRV (coro_current); 1632 prev_sv = SvRV (coro_current);
1542 ta->prev = SvSTATE (prev_sv); 1633 ta->prev = SvSTATE (prev_sv);
1543 TRANSFER_CHECK (*ta); 1634 TRANSFER_CHECK (*ta);
1544 assert (ta->next->flags & CF_READY); 1635 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1545 ta->next->flags &= ~CF_READY; 1636 ta->next->flags &= ~CF_READY;
1546 SvRV_set (coro_current, next_sv); 1637 SvRV_set (coro_current, next_sv);
1547 1638
1548 LOCK; 1639 LOCK;
1549 free_coro_mortal (aTHX); 1640 free_coro_mortal (aTHX);
1550 coro_mortal = prev_sv; 1641 coro_mortal = prev_sv;
1551 UNLOCK; 1642 UNLOCK;
1552} 1643}
1553 1644
1554static void 1645INLINE void
1555prepare_cede (pTHX_ struct transfer_args *ta) 1646prepare_cede (pTHX_ struct transfer_args *ta)
1556{ 1647{
1557 api_ready (coro_current); 1648 api_ready (coro_current);
1558 prepare_schedule (aTHX_ ta); 1649 prepare_schedule (aTHX_ ta);
1559} 1650}
… …
1621 struct coro *coro = SvSTATE (coro_sv); 1712 struct coro *coro = SvSTATE (coro_sv);
1622 1713
1623 if (flags & CC_TRACE) 1714 if (flags & CC_TRACE)
1624 { 1715 {
1625 if (!coro->cctx) 1716 if (!coro->cctx)
1626 coro->cctx = cctx_new (); 1717 coro->cctx = cctx_new_run ();
1627 else if (!(coro->cctx->flags & CC_TRACE)) 1718 else if (!(coro->cctx->flags & CC_TRACE))
1628 croak ("cannot enable tracing on coroutine with custom stack"); 1719 croak ("cannot enable tracing on coroutine with custom stack");
1629 1720
1630 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1721 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1631 } 1722 }
… …
1638 else 1729 else
1639 coro->slot->runops = RUNOPS_DEFAULT; 1730 coro->slot->runops = RUNOPS_DEFAULT;
1640 } 1731 }
1641} 1732}
1642 1733
1734#if 0
1643static int 1735static int
1644coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) 1736coro_gensub_free (pTHX_ SV *sv, MAGIC *mg)
1645{ 1737{
1646 AV *padlist; 1738 AV *padlist;
1647 AV *av = (AV *)mg->mg_obj; 1739 AV *av = (AV *)mg->mg_obj;
… …
1653 1745
1654static MGVTBL coro_gensub_vtbl = { 1746static MGVTBL coro_gensub_vtbl = {
1655 0, 0, 0, 0, 1747 0, 0, 0, 0,
1656 coro_gensub_free 1748 coro_gensub_free
1657}; 1749};
1750#endif
1658 1751
1659/*****************************************************************************/ 1752/*****************************************************************************/
1660/* PerlIO::cede */ 1753/* PerlIO::cede */
1661 1754
1662typedef struct 1755typedef struct
… …
1729 PerlIOBuf_get_ptr, 1822 PerlIOBuf_get_ptr,
1730 PerlIOBuf_get_cnt, 1823 PerlIOBuf_get_cnt,
1731 PerlIOBuf_set_ptrcnt, 1824 PerlIOBuf_set_ptrcnt,
1732}; 1825};
1733 1826
1827/*****************************************************************************/
1828
1829static const CV *ssl_cv; /* for quick consistency check */
1830
1831static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */
1832static SV *ssl_arg0;
1833static SV *ssl_arg1;
1834
1835/* this restores the stack in the case we patched the entersub, to */
1836/* recreate the stack frame as perl will on following calls */
1837/* since entersub cleared the stack */
1838static OP *
1839pp_restore (pTHX)
1840{
1841 dSP;
1842
1843 PUSHMARK (SP);
1844
1845 EXTEND (SP, 3);
1846 if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0;
1847 if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0;
1848 PUSHs ((SV *)CvGV (ssl_cv));
1849
1850 RETURNOP (ssl_restore.op_first);
1851}
1852
1853/* declare prototype */
1854XS(XS_Coro__State__set_stacklevel);
1855
1856static OP *
1857pp_set_stacklevel (pTHX)
1858{
1859 dSP;
1860 struct transfer_args ta;
1861 SV **arg = PL_stack_base + TOPMARK + 1;
1862 int items = SP - arg; /* args without function object */
1863
1864 /* do a quick consistency check on the "function" object, and if it isn't */
1865 /* for us, divert to the real entersub */
1866 if (SvTYPE (*sp) != SVt_PVGV || CvXSUB (GvCV (*sp)) != XS_Coro__State__set_stacklevel)
1867 return PL_ppaddr[OP_ENTERSUB](aTHX);
1868
1869 /* pop args */
1870 SP = PL_stack_base + POPMARK;
1871
1872 if (!(PL_op->op_flags & OPf_STACKED))
1873 {
1874 /* ampersand-form of call, use @_ instead of stack */
1875 AV *av = GvAV (PL_defgv);
1876 arg = AvARRAY (av);
1877 items = AvFILLp (av) + 1;
1878 }
1879
1880 PUTBACK;
1881 switch (PL_op->op_private & 7)
1882 {
1883 case 0:
1884 prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0]));
1885 break;
1886
1887 case 1:
1888 if (items != 2)
1889 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items);
1890
1891 prepare_transfer (aTHX_ &ta, arg [0], arg [1]);
1892 break;
1893
1894 case 2:
1895 prepare_schedule (aTHX_ &ta);
1896 break;
1897
1898 case 3:
1899 prepare_cede (aTHX_ &ta);
1900 break;
1901
1902 case 4:
1903 if (!prepare_cede_notself (aTHX_ &ta))
1904 goto skip;
1905
1906 break;
1907 }
1908
1909 TRANSFER (ta, 0);
1910 SPAGAIN;
1911
1912skip:
1913 PUTBACK;
1914 SSL_TAIL;
1915 SPAGAIN;
1916 RETURN;
1917}
1734 1918
1735MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 1919MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1736 1920
1737PROTOTYPES: DISABLE 1921PROTOTYPES: DISABLE
1738
1739BOOT:
1740{
1741#ifdef USE_ITHREADS
1742 MUTEX_INIT (&coro_mutex);
1743#endif
1744 BOOT_PAGESIZE;
1745
1746 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1747 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1748
1749 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1750 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1751 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
1752
1753 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1754 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1755 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1756
1757 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1758
1759 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1760 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1761 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1762 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1763
1764 main_mainstack = PL_mainstack;
1765 main_top_env = PL_top_env;
1766
1767 while (main_top_env->je_prev)
1768 main_top_env = main_top_env->je_prev;
1769
1770 coroapi.ver = CORO_API_VERSION;
1771 coroapi.rev = CORO_API_REVISION;
1772 coroapi.transfer = api_transfer;
1773
1774 {
1775 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
1776
1777 if (!svp) croak ("Time::HiRes is required");
1778 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
1779
1780 nvtime = INT2PTR (double (*)(), SvIV (*svp));
1781 }
1782
1783 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1784}
1785
1786SV *
1787new (char *klass, ...)
1788 CODE:
1789{
1790 struct coro *coro;
1791 MAGIC *mg;
1792 HV *hv;
1793 int i;
1794
1795 Newz (0, coro, 1, struct coro);
1796 coro->args = newAV ();
1797 coro->flags = CF_NEW;
1798
1799 if (coro_first) coro_first->prev = coro;
1800 coro->next = coro_first;
1801 coro_first = coro;
1802
1803 coro->hv = hv = newHV ();
1804 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
1805 mg->mg_flags |= MGf_DUP;
1806 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1807
1808 av_extend (coro->args, items - 1);
1809 for (i = 1; i < items; i++)
1810 av_push (coro->args, newSVsv (ST (i)));
1811}
1812 OUTPUT:
1813 RETVAL
1814 1922
1815# these not obviously related functions are all rolled into the same xs 1923# these not obviously related functions are all rolled into the same xs
1816# function to increase chances that they all will call transfer with the same 1924# function to increase chances that they all will call transfer with the same
1817# stack offset 1925# stack offset
1818void 1926void
… …
1822 Coro::schedule = 2 1930 Coro::schedule = 2
1823 Coro::cede = 3 1931 Coro::cede = 3
1824 Coro::cede_notself = 4 1932 Coro::cede_notself = 4
1825 CODE: 1933 CODE:
1826{ 1934{
1827 struct transfer_args ta; 1935 assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel));
1828 1936
1829 PUTBACK; 1937 /* we patch the op, and then re-run the whole call */
1830 switch (ix) 1938 /* we have to put some dummy argument on the stack for this to work */
1939 /* TODO: walk back the opcode chain (but how?), nuke the pp_gv etc. */
1940 ssl_restore.op_next = (OP *)&ssl_restore;
1941 ssl_restore.op_type = OP_NULL;
1942 ssl_restore.op_ppaddr = pp_restore;
1943 ssl_restore.op_first = PL_op;
1944
1945 ssl_arg0 = items > 0 ? SvREFCNT_inc (ST (0)) : 0;
1946 ssl_arg1 = items > 1 ? SvREFCNT_inc (ST (1)) : 0;
1947
1948 PL_op->op_ppaddr = pp_set_stacklevel;
1949 PL_op->op_private = PL_op->op_private & ~7 | ix; /* we potentially share our private flags with entersub */
1950
1951 PL_op = (OP *)&ssl_restore;
1952}
1953
1954BOOT:
1955{
1956#ifdef USE_ITHREADS
1957 MUTEX_INIT (&coro_lock);
1958# if CORO_PTHREAD
1959 coro_thx = PERL_GET_CONTEXT;
1960# endif
1961#endif
1962 BOOT_PAGESIZE;
1963
1964 ssl_cv = get_cv ("Coro::State::_set_stacklevel", 0);
1965
1966 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1967 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1968
1969 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1970 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1971 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
1972
1973 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1974 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1975 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1976
1977 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1978
1979 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1980 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1981 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1982 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1983
1984 main_mainstack = PL_mainstack;
1985 main_top_env = PL_top_env;
1986
1987 while (main_top_env->je_prev)
1988 main_top_env = main_top_env->je_prev;
1989
1990 coroapi.ver = CORO_API_VERSION;
1991 coroapi.rev = CORO_API_REVISION;
1992 coroapi.transfer = api_transfer;
1993
1831 { 1994 {
1832 case 0: 1995 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
1833 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));
1834 ta.next = 0;
1835 break;
1836 1996
1837 case 1: 1997 if (!svp) croak ("Time::HiRes is required");
1838 if (items != 2) 1998 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
1839 croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1840 1999
1841 prepare_transfer (aTHX_ &ta, ST (0), ST (1)); 2000 nvtime = INT2PTR (double (*)(), SvIV (*svp));
1842 break;
1843
1844 case 2:
1845 prepare_schedule (aTHX_ &ta);
1846 break;
1847
1848 case 3:
1849 prepare_cede (aTHX_ &ta);
1850 break;
1851
1852 case 4:
1853 if (!prepare_cede_notself (aTHX_ &ta))
1854 XSRETURN_EMPTY;
1855
1856 break;
1857 } 2001 }
1858 SPAGAIN;
1859 2002
1860 BARRIER; 2003 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1861 PUTBACK;
1862 TRANSFER (ta, 0);
1863 SPAGAIN; /* might be the sp of a different coroutine now */
1864 /* be extra careful not to ever do anything after TRANSFER */
1865} 2004}
2005
2006SV *
2007new (char *klass, ...)
2008 CODE:
2009{
2010 struct coro *coro;
2011 MAGIC *mg;
2012 HV *hv;
2013 int i;
2014
2015 Newz (0, coro, 1, struct coro);
2016 coro->args = newAV ();
2017 coro->flags = CF_NEW;
2018
2019 if (coro_first) coro_first->prev = coro;
2020 coro->next = coro_first;
2021 coro_first = coro;
2022
2023 coro->hv = hv = newHV ();
2024 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2025 mg->mg_flags |= MGf_DUP;
2026 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2027
2028 av_extend (coro->args, items - 1);
2029 for (i = 1; i < items; i++)
2030 av_push (coro->args, newSVsv (ST (i)));
2031}
2032 OUTPUT:
2033 RETVAL
1866 2034
1867bool 2035bool
1868_destroy (SV *coro_sv) 2036_destroy (SV *coro_sv)
1869 CODE: 2037 CODE:
1870 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 2038 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
… …
1878 _exit (code); 2046 _exit (code);
1879 2047
1880int 2048int
1881cctx_stacksize (int new_stacksize = 0) 2049cctx_stacksize (int new_stacksize = 0)
1882 CODE: 2050 CODE:
1883 RETVAL = coro_stacksize; 2051 RETVAL = cctx_stacksize;
1884 if (new_stacksize) 2052 if (new_stacksize)
2053 {
1885 coro_stacksize = new_stacksize; 2054 cctx_stacksize = new_stacksize;
2055 ++cctx_gen;
2056 }
2057 OUTPUT:
2058 RETVAL
2059
2060int
2061cctx_max_idle (int max_idle = 0)
2062 CODE:
2063 RETVAL = cctx_max_idle;
2064 if (max_idle > 1)
2065 cctx_max_idle = max_idle;
1886 OUTPUT: 2066 OUTPUT:
1887 RETVAL 2067 RETVAL
1888 2068
1889int 2069int
1890cctx_count () 2070cctx_count ()
… …
1968 RETVAL = boolSV (coro->flags & ix); 2148 RETVAL = boolSV (coro->flags & ix);
1969 OUTPUT: 2149 OUTPUT:
1970 RETVAL 2150 RETVAL
1971 2151
1972void 2152void
2153throw (Coro::State self, SV *throw = &PL_sv_undef)
2154 PROTOTYPE: $;$
2155 CODE:
2156 SvREFCNT_dec (self->throw);
2157 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
2158
2159void
1973api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 2160api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1974 2161
1975SV * 2162SV *
1976has_cctx (Coro::State coro) 2163has_cctx (Coro::State coro)
1977 PROTOTYPE: $ 2164 PROTOTYPE: $
… …
1986 CODE: 2173 CODE:
1987 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; 2174 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1988 OUTPUT: 2175 OUTPUT:
1989 RETVAL 2176 RETVAL
1990 2177
1991IV 2178UV
1992rss (Coro::State coro) 2179rss (Coro::State coro)
1993 PROTOTYPE: $ 2180 PROTOTYPE: $
1994 ALIAS: 2181 ALIAS:
1995 usecount = 1 2182 usecount = 1
1996 CODE: 2183 CODE:
… …
2007 CODE: 2194 CODE:
2008 struct coro *coro = SvSTATE (coro_current); 2195 struct coro *coro = SvSTATE (coro_current);
2009 coro->cctx->idle_sp = 0; 2196 coro->cctx->idle_sp = 0;
2010 2197
2011void 2198void
2012throw (Coro::State self, SV *throw = &PL_sv_undef)
2013 PROTOTYPE: $;$
2014 CODE:
2015 SvREFCNT_dec (self->throw);
2016 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
2017
2018void
2019swap_defsv (Coro::State self) 2199swap_defsv (Coro::State self)
2020 PROTOTYPE: $ 2200 PROTOTYPE: $
2021 ALIAS: 2201 ALIAS:
2022 swap_defav = 1 2202 swap_defav = 1
2023 CODE: 2203 CODE:
… …
2055 2235
2056 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 2236 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2057 coro_ready[i] = newAV (); 2237 coro_ready[i] = newAV ();
2058 2238
2059 { 2239 {
2060 SV *sv = perl_get_sv ("Coro::API", TRUE); 2240 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2061 perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
2062 2241
2063 coroapi.schedule = api_schedule; 2242 coroapi.schedule = api_schedule;
2064 coroapi.cede = api_cede; 2243 coroapi.cede = api_cede;
2065 coroapi.cede_notself = api_cede_notself; 2244 coroapi.cede_notself = api_cede_notself;
2066 coroapi.ready = api_ready; 2245 coroapi.ready = api_ready;
… …
2178 sv_setsv (cb, &PL_sv_undef); 2357 sv_setsv (cb, &PL_sv_undef);
2179 2358
2180 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2359 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2181 coro->saved_deffh = 0; 2360 coro->saved_deffh = 0;
2182 2361
2183 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) 2362 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2184 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2363 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2185 { 2364 {
2186 SV *old = PL_diehook; 2365 SV *old = PL_diehook;
2187 PL_diehook = 0; 2366 PL_diehook = 0;
2188 SvREFCNT_dec (old); 2367 SvREFCNT_dec (old);
… …
2334 2513
2335MODULE = Coro::State PACKAGE = PerlIO::cede 2514MODULE = Coro::State PACKAGE = PerlIO::cede
2336 2515
2337BOOT: 2516BOOT:
2338 PerlIO_define_layer (aTHX_ &PerlIO_cede); 2517 PerlIO_define_layer (aTHX_ &PerlIO_cede);
2518

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines