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Comparing Coro/Coro/State.xs (file contents):
Revision 1.252 by root, Tue Nov 4 12:08:44 2008 UTC vs.
Revision 1.264 by root, Fri Nov 14 02:29:09 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/thrown 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)
… …
706#ifndef MgPV_nolen_const 723#ifndef MgPV_nolen_const
707#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ 724#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
708 SvPV_nolen((SV*)((mg)->mg_ptr)) : \ 725 SvPV_nolen((SV*)((mg)->mg_ptr)) : \
709 (const char*)(mg)->mg_ptr) 726 (const char*)(mg)->mg_ptr)
710#endif 727#endif
728
729/* we sometimes need to create the effect of entersub calling us */
730#define SSL_HEAD (void)0
731/* we somtimes need to create the effect of leaving via entersub */
732#define SSL_TAIL (void)0
711 733
712/* 734/*
713 * This overrides the default magic get method of %SIG elements. 735 * This overrides the default magic get method of %SIG elements.
714 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 736 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
715 * and instead of tryign to save and restore the hash elements, we just provide 737 * and instead of tryign to save and restore the hash elements, we just provide
… …
820 PL_rs = newSVsv (GvSV (irsgv)); 842 PL_rs = newSVsv (GvSV (irsgv));
821 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 843 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
822 844
823 { 845 {
824 dSP; 846 dSP;
825 LOGOP myop; 847 UNOP myop;
826 848
827 Zero (&myop, 1, LOGOP); 849 Zero (&myop, 1, UNOP);
828 myop.op_next = Nullop; 850 myop.op_next = Nullop;
829 myop.op_flags = OPf_WANT_VOID; 851 myop.op_flags = OPf_WANT_VOID;
830 852
831 PUSHMARK (SP); 853 PUSHMARK (SP);
832 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 854 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
… …
836 SPAGAIN; 858 SPAGAIN;
837 } 859 }
838 860
839 /* this newly created coroutine might be run on an existing cctx which most 861 /* this newly created coroutine might be run on an existing cctx which most
840 * likely was suspended in set_stacklevel, called from entersub. 862 * likely was suspended in set_stacklevel, called from entersub.
841 * set_stacklevl doesn't do anything on return, but entersub does LEAVE, 863 * set_stacklevel doesn't do anything on return, but entersub does LEAVE,
842 * so we ENTER here for symmetry 864 * so we ENTER here for symmetry.
843 */ 865 */
844 ENTER; 866 SSL_HEAD;
845} 867}
846 868
847static void 869static void
848coro_destroy (pTHX_ struct coro *coro) 870coro_destruct (pTHX_ struct coro *coro)
849{ 871{
850 if (!IN_DESTRUCT) 872 if (!IN_DESTRUCT)
851 { 873 {
852 /* restore all saved variables and stuff */ 874 /* restore all saved variables and stuff */
853 LEAVE_SCOPE (0); 875 LEAVE_SCOPE (0);
… …
875 SvREFCNT_dec (PL_warnhook); 897 SvREFCNT_dec (PL_warnhook);
876 898
877 SvREFCNT_dec (coro->saved_deffh); 899 SvREFCNT_dec (coro->saved_deffh);
878 SvREFCNT_dec (coro->throw); 900 SvREFCNT_dec (coro->throw);
879 901
880 coro_destroy_stacks (aTHX); 902 coro_destruct_stacks (aTHX);
881} 903}
882 904
883static void 905INLINE void
884free_coro_mortal (pTHX) 906free_coro_mortal (pTHX)
885{ 907{
886 if (expect_true (coro_mortal)) 908 if (expect_true (coro_mortal))
887 { 909 {
888 SvREFCNT_dec (coro_mortal); 910 SvREFCNT_dec (coro_mortal);
… …
1012 1034
1013 TAINT_NOT; 1035 TAINT_NOT;
1014 return 0; 1036 return 0;
1015} 1037}
1016 1038
1039static void
1040prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx)
1041{
1042 ta->prev = (struct coro *)cctx;
1043 ta->next = 0;
1044}
1045
1017/* inject a fake call to Coro::State::_cctx_init into the execution */ 1046/* 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 */ 1047/* _cctx_init should be careful, as it could be called at almost any time */
1019/* during execution of a perl program */ 1048/* during execution of a perl program */
1049/* also initialises PL_top_env */
1020static void NOINLINE 1050static void NOINLINE
1021cctx_prepare (pTHX_ coro_cctx *cctx) 1051cctx_prepare (pTHX_ coro_cctx *cctx)
1022{ 1052{
1023 dSP; 1053 dSP;
1024 LOGOP myop; 1054 UNOP myop;
1025 1055
1026 PL_top_env = &PL_start_env; 1056 PL_top_env = &PL_start_env;
1027 1057
1028 if (cctx->flags & CC_TRACE) 1058 if (cctx->flags & CC_TRACE)
1029 PL_runops = runops_trace; 1059 PL_runops = runops_trace;
1030 1060
1031 Zero (&myop, 1, LOGOP); 1061 Zero (&myop, 1, UNOP);
1032 myop.op_next = PL_op; 1062 myop.op_next = PL_op;
1033 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 1063 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
1034 1064
1035 PUSHMARK (SP); 1065 PUSHMARK (SP);
1036 EXTEND (SP, 2); 1066 EXTEND (SP, 2);
1037 PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); 1067 PUSHs (sv_2mortal (newSViv ((IV)cctx)));
1038 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); 1068 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
1039 PUTBACK; 1069 PUTBACK;
1040 PL_op = (OP *)&myop; 1070 PL_op = (OP *)&myop;
1041 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 1071 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
1042 SPAGAIN; 1072 SPAGAIN;
1043} 1073}
1044 1074
1075/* the tail of transfer: execute stuff we can only do after a transfer */
1076INLINE void
1077transfer_tail (pTHX)
1078{
1079 struct coro *next = (struct coro *)transfer_next;
1080 assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
1081 assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
1082
1083 free_coro_mortal (aTHX);
1084 UNLOCK;
1085
1086 if (expect_false (next->throw))
1087 {
1088 SV *exception = sv_2mortal (next->throw);
1089
1090 next->throw = 0;
1091 sv_setsv (ERRSV, exception);
1092 croak (0);
1093 }
1094}
1095
1045/* 1096/*
1046 * this is a _very_ stripped down perl interpreter ;) 1097 * this is a _very_ stripped down perl interpreter ;)
1047 */ 1098 */
1048static void 1099static void
1049cctx_run (void *arg) 1100cctx_run (void *arg)
1050{ 1101{
1102#ifdef USE_ITHREADS
1103# if CORO_PTHREAD
1104 PERL_SET_CONTEXT (coro_thx);
1105# endif
1106#endif
1107 {
1051 dTHX; 1108 dTHX;
1052 1109
1053 /* cctx_run is the alternative tail of transfer(), so unlock here. */ 1110 /* entersub called ENTER, but we never 'returned', undo that here */
1054 UNLOCK; 1111 SSL_TAIL;
1055 1112
1056 /* we now skip the entersub that lead to transfer() */ 1113 /* we now skip the op that did lead to transfer() */
1057 PL_op = PL_op->op_next; 1114 PL_op = PL_op->op_next;
1058 1115
1059 /* inject a fake subroutine call to cctx_init */ 1116 /* inject a fake subroutine call to cctx_init */
1060 cctx_prepare (aTHX_ (coro_cctx *)arg); 1117 cctx_prepare (aTHX_ (coro_cctx *)arg);
1061 1118
1119 /* cctx_run is the alternative tail of transfer() */
1120 transfer_tail (aTHX);
1121
1062 /* somebody or something will hit me for both perl_run and PL_restartop */ 1122 /* somebody or something will hit me for both perl_run and PL_restartop */
1063 PL_restartop = PL_op; 1123 PL_restartop = PL_op;
1064 perl_run (PL_curinterp); 1124 perl_run (PL_curinterp);
1065 1125
1066 /* 1126 /*
1067 * If perl-run returns we assume exit() was being called or the coro 1127 * 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) 1128 * 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 1129 * 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" 1130 * bootstrap-time "top" top_env, as we cannot restore the "main"
1071 * coroutine as Coro has no such concept 1131 * coroutine as Coro has no such concept
1072 */ 1132 */
1073 PL_top_env = main_top_env; 1133 PL_top_env = main_top_env;
1074 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1134 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1135 }
1075} 1136}
1076 1137
1077static coro_cctx * 1138static coro_cctx *
1078cctx_new () 1139cctx_new ()
1079{ 1140{
1080 coro_cctx *cctx; 1141 coro_cctx *cctx;
1142
1143 ++cctx_count;
1144 New (0, cctx, 1, coro_cctx);
1145
1146 cctx->gen = cctx_gen;
1147 cctx->flags = 0;
1148 cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
1149
1150 return cctx;
1151}
1152
1153/* create a new cctx only suitable as source */
1154static coro_cctx *
1155cctx_new_empty ()
1156{
1157 coro_cctx *cctx = cctx_new ();
1158
1159 cctx->sptr = 0;
1160 coro_create (&cctx->cctx, 0, 0, 0, 0);
1161
1162 return cctx;
1163}
1164
1165/* create a new cctx suitable as destination/running a perl interpreter */
1166static coro_cctx *
1167cctx_new_run ()
1168{
1169 coro_cctx *cctx = cctx_new ();
1081 void *stack_start; 1170 void *stack_start;
1082 size_t stack_size; 1171 size_t stack_size;
1083 1172
1084 ++cctx_count;
1085
1086 Newz (0, cctx, 1, coro_cctx);
1087
1088#if HAVE_MMAP 1173#if HAVE_MMAP
1089 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 1174 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1090 /* mmap supposedly does allocate-on-write for us */ 1175 /* 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); 1176 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1092 1177
1093 if (cctx->sptr != (void *)-1) 1178 if (cctx->sptr != (void *)-1)
1094 { 1179 {
1095# if CORO_STACKGUARD 1180 #if CORO_STACKGUARD
1096 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 1181 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1097# endif 1182 #endif
1098 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 1183 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1099 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 1184 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1100 cctx->flags |= CC_MAPPED; 1185 cctx->flags |= CC_MAPPED;
1101 } 1186 }
1102 else 1187 else
1103#endif 1188#endif
1104 { 1189 {
1105 cctx->ssize = coro_stacksize * (long)sizeof (long); 1190 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1106 New (0, cctx->sptr, coro_stacksize, long); 1191 New (0, cctx->sptr, cctx_stacksize, long);
1107 1192
1108 if (!cctx->sptr) 1193 if (!cctx->sptr)
1109 { 1194 {
1110 perror ("FATAL: unable to allocate stack for coroutine"); 1195 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1111 _exit (EXIT_FAILURE); 1196 _exit (EXIT_FAILURE);
1112 } 1197 }
1113 1198
1114 stack_start = cctx->sptr; 1199 stack_start = cctx->sptr;
1115 stack_size = cctx->ssize; 1200 stack_size = cctx->ssize;
1116 } 1201 }
1117 1202
1118 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); 1203 #if CORO_USE_VALGRIND
1204 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1205 #endif
1206
1119 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1207 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
1120 1208
1121 return cctx; 1209 return cctx;
1122} 1210}
1123 1211
… …
1126{ 1214{
1127 if (!cctx) 1215 if (!cctx)
1128 return; 1216 return;
1129 1217
1130 --cctx_count; 1218 --cctx_count;
1219 coro_destroy (&cctx->cctx);
1131 1220
1221 /* coro_transfer creates new, empty cctx's */
1222 if (cctx->sptr)
1223 {
1132#if CORO_USE_VALGRIND 1224 #if CORO_USE_VALGRIND
1133 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 1225 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1134#endif 1226 #endif
1135 1227
1136#if HAVE_MMAP 1228#if HAVE_MMAP
1137 if (cctx->flags & CC_MAPPED) 1229 if (cctx->flags & CC_MAPPED)
1138 munmap (cctx->sptr, cctx->ssize); 1230 munmap (cctx->sptr, cctx->ssize);
1139 else 1231 else
1140#endif 1232#endif
1141 Safefree (cctx->sptr); 1233 Safefree (cctx->sptr);
1234 }
1142 1235
1143 Safefree (cctx); 1236 Safefree (cctx);
1144} 1237}
1145 1238
1146/* wether this cctx should be destructed */ 1239/* wether this cctx should be destructed */
1147#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) 1240#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1148 1241
1149static coro_cctx * 1242static coro_cctx *
1150cctx_get (pTHX) 1243cctx_get (pTHX)
1151{ 1244{
1152 while (expect_true (cctx_first)) 1245 while (expect_true (cctx_first))
… …
1159 return cctx; 1252 return cctx;
1160 1253
1161 cctx_destroy (cctx); 1254 cctx_destroy (cctx);
1162 } 1255 }
1163 1256
1164 return cctx_new (); 1257 return cctx_new_run ();
1165} 1258}
1166 1259
1167static void 1260static void
1168cctx_put (coro_cctx *cctx) 1261cctx_put (coro_cctx *cctx)
1169{ 1262{
1263 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1264
1170 /* free another cctx if overlimit */ 1265 /* free another cctx if overlimit */
1171 if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) 1266 if (expect_false (cctx_idle >= cctx_max_idle))
1172 { 1267 {
1173 coro_cctx *first = cctx_first; 1268 coro_cctx *first = cctx_first;
1174 cctx_first = first->next; 1269 cctx_first = first->next;
1175 --cctx_idle; 1270 --cctx_idle;
1176 1271
… …
1217 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1312 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1218 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1313 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1219 } 1314 }
1220 else if (expect_true (prev != next)) 1315 else if (expect_true (prev != next))
1221 { 1316 {
1222 static volatile int has_throw;
1223 coro_cctx *prev__cctx; 1317 coro_cctx *prev__cctx;
1224 1318
1225 if (expect_false (prev->flags & CF_NEW)) 1319 if (expect_false (prev->flags & CF_NEW))
1226 { 1320 {
1227 /* create a new empty context */ 1321 /* create a new empty/source context */
1228 Newz (0, prev->cctx, 1, coro_cctx); 1322 prev->cctx = cctx_new_empty ();
1229 prev->flags &= ~CF_NEW; 1323 prev->flags &= ~CF_NEW;
1230 prev->flags |= CF_RUNNING; 1324 prev->flags |= CF_RUNNING;
1231 } 1325 }
1232 1326
1233 prev->flags &= ~CF_RUNNING; 1327 prev->flags &= ~CF_RUNNING;
… …
1248 else 1342 else
1249 load_perl (aTHX_ next); 1343 load_perl (aTHX_ next);
1250 1344
1251 prev__cctx = prev->cctx; 1345 prev__cctx = prev->cctx;
1252 1346
1253 /* possibly "free" the cctx */ 1347 /* possibly untie and reuse the cctx */
1254 if (expect_true ( 1348 if (expect_true (
1255 prev__cctx->idle_sp == STACKLEVEL 1349 prev__cctx->idle_sp == STACKLEVEL
1256 && !(prev__cctx->flags & CC_TRACE) 1350 && !(prev__cctx->flags & CC_TRACE)
1257 && !force_cctx 1351 && !force_cctx
1258 )) 1352 ))
1259 { 1353 {
1260 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1354 /* 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)); 1355 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1262 1356
1263 prev->cctx = 0; 1357 prev->cctx = 0;
1264 1358
1265 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1359 /* 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 */ 1360 /* without this the next cctx_get might destroy the prev__cctx while still in use */
… …
1274 ++next->usecount; 1368 ++next->usecount;
1275 1369
1276 if (expect_true (!next->cctx)) 1370 if (expect_true (!next->cctx))
1277 next->cctx = cctx_get (aTHX); 1371 next->cctx = cctx_get (aTHX);
1278 1372
1279 has_throw = !!next->throw; 1373 assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
1374 transfer_next = next;
1280 1375
1281 if (expect_false (prev__cctx != next->cctx)) 1376 if (expect_false (prev__cctx != next->cctx))
1282 { 1377 {
1283 prev__cctx->top_env = PL_top_env; 1378 prev__cctx->top_env = PL_top_env;
1284 PL_top_env = next->cctx->top_env; 1379 PL_top_env = next->cctx->top_env;
1285 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1380 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1286 } 1381 }
1287 1382
1288 free_coro_mortal (aTHX); 1383 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 } 1384 }
1304} 1385}
1305
1306struct transfer_args
1307{
1308 struct coro *prev, *next;
1309};
1310 1386
1311#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1387#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) 1388#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1313 1389
1314/** high level stuff ********************************************************/ 1390/** high level stuff ********************************************************/
… …
1340 croak ("FATAL: tried to destroy currently running coroutine"); 1416 croak ("FATAL: tried to destroy currently running coroutine");
1341 1417
1342 save_perl (aTHX_ &temp); 1418 save_perl (aTHX_ &temp);
1343 load_perl (aTHX_ coro); 1419 load_perl (aTHX_ coro);
1344 1420
1345 coro_destroy (aTHX_ coro); 1421 coro_destruct (aTHX_ coro);
1346 1422
1347 load_perl (aTHX_ &temp); 1423 load_perl (aTHX_ &temp);
1348 1424
1349 coro->slot = 0; 1425 coro->slot = 0;
1350 } 1426 }
… …
1487 1563
1488static int 1564static int
1489api_is_ready (SV *coro_sv) 1565api_is_ready (SV *coro_sv)
1490{ 1566{
1491 dTHX; 1567 dTHX;
1568
1492 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1569 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1493} 1570}
1494 1571
1495static void 1572INLINE void
1496prepare_schedule (pTHX_ struct transfer_args *ta) 1573prepare_schedule (pTHX_ struct transfer_args *ta)
1497{ 1574{
1498 SV *prev_sv, *next_sv; 1575 SV *prev_sv, *next_sv;
1499 1576
1500 for (;;) 1577 for (;;)
… …
1526 /* cannot transfer to destroyed coros, skip and look for next */ 1603 /* cannot transfer to destroyed coros, skip and look for next */
1527 if (expect_false (ta->next->flags & CF_DESTROYED)) 1604 if (expect_false (ta->next->flags & CF_DESTROYED))
1528 { 1605 {
1529 UNLOCK; 1606 UNLOCK;
1530 SvREFCNT_dec (next_sv); 1607 SvREFCNT_dec (next_sv);
1531 /* coro_nready is already taken care of by destroy */ 1608 /* coro_nready has already been taken care of by destroy */
1532 continue; 1609 continue;
1533 } 1610 }
1534 1611
1535 --coro_nready; 1612 --coro_nready;
1536 UNLOCK; 1613 UNLOCK;
… …
1539 1616
1540 /* free this only after the transfer */ 1617 /* free this only after the transfer */
1541 prev_sv = SvRV (coro_current); 1618 prev_sv = SvRV (coro_current);
1542 ta->prev = SvSTATE (prev_sv); 1619 ta->prev = SvSTATE (prev_sv);
1543 TRANSFER_CHECK (*ta); 1620 TRANSFER_CHECK (*ta);
1544 assert (ta->next->flags & CF_READY); 1621 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1545 ta->next->flags &= ~CF_READY; 1622 ta->next->flags &= ~CF_READY;
1546 SvRV_set (coro_current, next_sv); 1623 SvRV_set (coro_current, next_sv);
1547 1624
1548 LOCK; 1625 LOCK;
1549 free_coro_mortal (aTHX); 1626 free_coro_mortal (aTHX);
1550 coro_mortal = prev_sv; 1627 coro_mortal = prev_sv;
1551 UNLOCK; 1628 UNLOCK;
1552} 1629}
1553 1630
1554static void 1631INLINE void
1555prepare_cede (pTHX_ struct transfer_args *ta) 1632prepare_cede (pTHX_ struct transfer_args *ta)
1556{ 1633{
1557 api_ready (coro_current); 1634 api_ready (coro_current);
1558 prepare_schedule (aTHX_ ta); 1635 prepare_schedule (aTHX_ ta);
1559} 1636}
… …
1621 struct coro *coro = SvSTATE (coro_sv); 1698 struct coro *coro = SvSTATE (coro_sv);
1622 1699
1623 if (flags & CC_TRACE) 1700 if (flags & CC_TRACE)
1624 { 1701 {
1625 if (!coro->cctx) 1702 if (!coro->cctx)
1626 coro->cctx = cctx_new (); 1703 coro->cctx = cctx_new_run ();
1627 else if (!(coro->cctx->flags & CC_TRACE)) 1704 else if (!(coro->cctx->flags & CC_TRACE))
1628 croak ("cannot enable tracing on coroutine with custom stack"); 1705 croak ("cannot enable tracing on coroutine with custom stack");
1629 1706
1630 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1707 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1631 } 1708 }
… …
1638 else 1715 else
1639 coro->slot->runops = RUNOPS_DEFAULT; 1716 coro->slot->runops = RUNOPS_DEFAULT;
1640 } 1717 }
1641} 1718}
1642 1719
1720#if 0
1643static int 1721static int
1644coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) 1722coro_gensub_free (pTHX_ SV *sv, MAGIC *mg)
1645{ 1723{
1646 AV *padlist; 1724 AV *padlist;
1647 AV *av = (AV *)mg->mg_obj; 1725 AV *av = (AV *)mg->mg_obj;
… …
1653 1731
1654static MGVTBL coro_gensub_vtbl = { 1732static MGVTBL coro_gensub_vtbl = {
1655 0, 0, 0, 0, 1733 0, 0, 0, 0,
1656 coro_gensub_free 1734 coro_gensub_free
1657}; 1735};
1736#endif
1658 1737
1659/*****************************************************************************/ 1738/*****************************************************************************/
1660/* PerlIO::cede */ 1739/* PerlIO::cede */
1661 1740
1662typedef struct 1741typedef struct
… …
1729 PerlIOBuf_get_ptr, 1808 PerlIOBuf_get_ptr,
1730 PerlIOBuf_get_cnt, 1809 PerlIOBuf_get_cnt,
1731 PerlIOBuf_set_ptrcnt, 1810 PerlIOBuf_set_ptrcnt,
1732}; 1811};
1733 1812
1813/*****************************************************************************/
1814
1815static const CV *ssl_cv; /* for quick consistency check */
1816
1817static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */
1818static SV *ssl_arg0;
1819static SV *ssl_arg1;
1820
1821/* this restores the stack in the case we patched the entersub, to */
1822/* recreate the stack frame as perl will on following calls */
1823/* since entersub cleared the stack */
1824static OP *
1825pp_restore (pTHX)
1826{
1827 dSP;
1828
1829 PUSHMARK (SP);
1830
1831 EXTEND (SP, 3);
1832 if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0;
1833 if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0;
1834 PUSHs ((SV *)CvGV (ssl_cv));
1835
1836 RETURNOP (ssl_restore.op_first);
1837}
1838
1839/* declare prototype */
1840XS(XS_Coro__State__set_stacklevel);
1841
1842static OP *
1843pp_set_stacklevel (pTHX)
1844{
1845 dSP;
1846 struct transfer_args ta;
1847 SV **arg = PL_stack_base + TOPMARK + 1;
1848 int items = SP - arg; /* args without function object */
1849
1850 /* do a quick consistency check on the "function" object, and if it isn't */
1851 /* for us, divert to the real entersub */
1852 if (SvTYPE (*sp) != SVt_PVGV || CvXSUB (GvCV (*sp)) != XS_Coro__State__set_stacklevel)
1853 return PL_ppaddr[OP_ENTERSUB](aTHX);
1854
1855 /* pop args */
1856 SP = PL_stack_base + POPMARK;
1857
1858 if (!(PL_op->op_flags & OPf_STACKED))
1859 {
1860 /* ampersand-form of call, use @_ instead of stack */
1861 AV *av = GvAV (PL_defgv);
1862 arg = AvARRAY (av);
1863 items = AvFILLp (av) + 1;
1864 }
1865
1866 PUTBACK;
1867 switch (PL_op->op_private & 7)
1868 {
1869 case 0:
1870 prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0]));
1871 break;
1872
1873 case 1:
1874 if (items != 2)
1875 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items);
1876
1877 prepare_transfer (aTHX_ &ta, arg [0], arg [1]);
1878 break;
1879
1880 case 2:
1881 prepare_schedule (aTHX_ &ta);
1882 break;
1883
1884 case 3:
1885 prepare_cede (aTHX_ &ta);
1886 break;
1887
1888 case 4:
1889 if (!prepare_cede_notself (aTHX_ &ta))
1890 RETURN;
1891
1892 break;
1893 }
1894
1895 TRANSFER (ta, 0);
1896 SPAGAIN;
1897
1898skip:
1899
1900 RETURN;
1901}
1734 1902
1735MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 1903MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1736 1904
1737PROTOTYPES: DISABLE 1905PROTOTYPES: 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 1906
1815# these not obviously related functions are all rolled into the same xs 1907# 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 1908# function to increase chances that they all will call transfer with the same
1817# stack offset 1909# stack offset
1818void 1910void
… …
1822 Coro::schedule = 2 1914 Coro::schedule = 2
1823 Coro::cede = 3 1915 Coro::cede = 3
1824 Coro::cede_notself = 4 1916 Coro::cede_notself = 4
1825 CODE: 1917 CODE:
1826{ 1918{
1827 struct transfer_args ta; 1919 assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel));
1828 1920
1829 PUTBACK; 1921 /* we patch the op, and then re-run the whole call */
1830 switch (ix) 1922 /* we have to put some dummy argument on the stack for this to work */
1923 /* TODO: walk back the opcode chain (but how?), nuke the pp_gv etc. */
1924 ssl_restore.op_next = (OP *)&ssl_restore;
1925 ssl_restore.op_type = OP_NULL;
1926 ssl_restore.op_ppaddr = pp_restore;
1927 ssl_restore.op_first = PL_op;
1928
1929 ssl_arg0 = items > 0 ? SvREFCNT_inc (ST (0)) : 0;
1930 ssl_arg1 = items > 1 ? SvREFCNT_inc (ST (1)) : 0;
1931
1932 PL_op->op_ppaddr = pp_set_stacklevel;
1933 PL_op->op_private = PL_op->op_private & ~7 | ix; /* we potentially share our private flags with entersub */
1934
1935 PL_op = (OP *)&ssl_restore;
1936}
1937
1938BOOT:
1939{
1940#ifdef USE_ITHREADS
1941 MUTEX_INIT (&coro_lock);
1942# if CORO_PTHREAD
1943 coro_thx = PERL_GET_CONTEXT;
1944# endif
1945#endif
1946 BOOT_PAGESIZE;
1947
1948 ssl_cv = get_cv ("Coro::State::_set_stacklevel", 0);
1949
1950 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1951 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1952
1953 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1954 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1955 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
1956
1957 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1958 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1959 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1960
1961 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1962
1963 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1964 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1965 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1966 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1967
1968 main_mainstack = PL_mainstack;
1969 main_top_env = PL_top_env;
1970
1971 while (main_top_env->je_prev)
1972 main_top_env = main_top_env->je_prev;
1973
1974 coroapi.ver = CORO_API_VERSION;
1975 coroapi.rev = CORO_API_REVISION;
1976 coroapi.transfer = api_transfer;
1977
1831 { 1978 {
1832 case 0: 1979 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 1980
1837 case 1: 1981 if (!svp) croak ("Time::HiRes is required");
1838 if (items != 2) 1982 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 1983
1841 prepare_transfer (aTHX_ &ta, ST (0), ST (1)); 1984 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 } 1985 }
1858 SPAGAIN;
1859 1986
1860 BARRIER; 1987 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} 1988}
1989
1990SV *
1991new (char *klass, ...)
1992 CODE:
1993{
1994 struct coro *coro;
1995 MAGIC *mg;
1996 HV *hv;
1997 int i;
1998
1999 Newz (0, coro, 1, struct coro);
2000 coro->args = newAV ();
2001 coro->flags = CF_NEW;
2002
2003 if (coro_first) coro_first->prev = coro;
2004 coro->next = coro_first;
2005 coro_first = coro;
2006
2007 coro->hv = hv = newHV ();
2008 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2009 mg->mg_flags |= MGf_DUP;
2010 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2011
2012 av_extend (coro->args, items - 1);
2013 for (i = 1; i < items; i++)
2014 av_push (coro->args, newSVsv (ST (i)));
2015}
2016 OUTPUT:
2017 RETVAL
1866 2018
1867bool 2019bool
1868_destroy (SV *coro_sv) 2020_destroy (SV *coro_sv)
1869 CODE: 2021 CODE:
1870 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 2022 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
… …
1878 _exit (code); 2030 _exit (code);
1879 2031
1880int 2032int
1881cctx_stacksize (int new_stacksize = 0) 2033cctx_stacksize (int new_stacksize = 0)
1882 CODE: 2034 CODE:
1883 RETVAL = coro_stacksize; 2035 RETVAL = cctx_stacksize;
1884 if (new_stacksize) 2036 if (new_stacksize)
2037 {
1885 coro_stacksize = new_stacksize; 2038 cctx_stacksize = new_stacksize;
2039 ++cctx_gen;
2040 }
2041 OUTPUT:
2042 RETVAL
2043
2044int
2045cctx_max_idle (int max_idle = 0)
2046 CODE:
2047 RETVAL = cctx_max_idle;
2048 if (max_idle > 1)
2049 cctx_max_idle = max_idle;
1886 OUTPUT: 2050 OUTPUT:
1887 RETVAL 2051 RETVAL
1888 2052
1889int 2053int
1890cctx_count () 2054cctx_count ()
… …
1968 RETVAL = boolSV (coro->flags & ix); 2132 RETVAL = boolSV (coro->flags & ix);
1969 OUTPUT: 2133 OUTPUT:
1970 RETVAL 2134 RETVAL
1971 2135
1972void 2136void
2137throw (Coro::State self, SV *throw = &PL_sv_undef)
2138 PROTOTYPE: $;$
2139 CODE:
2140 SvREFCNT_dec (self->throw);
2141 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
2142
2143void
1973api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 2144api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1974 2145
1975SV * 2146SV *
1976has_cctx (Coro::State coro) 2147has_cctx (Coro::State coro)
1977 PROTOTYPE: $ 2148 PROTOTYPE: $
… …
1986 CODE: 2157 CODE:
1987 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; 2158 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1988 OUTPUT: 2159 OUTPUT:
1989 RETVAL 2160 RETVAL
1990 2161
1991IV 2162UV
1992rss (Coro::State coro) 2163rss (Coro::State coro)
1993 PROTOTYPE: $ 2164 PROTOTYPE: $
1994 ALIAS: 2165 ALIAS:
1995 usecount = 1 2166 usecount = 1
1996 CODE: 2167 CODE:
… …
2048 2219
2049 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 2220 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2050 coro_ready[i] = newAV (); 2221 coro_ready[i] = newAV ();
2051 2222
2052 { 2223 {
2053 SV *sv = perl_get_sv ("Coro::API", TRUE); 2224 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2054 perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
2055 2225
2056 coroapi.schedule = api_schedule; 2226 coroapi.schedule = api_schedule;
2057 coroapi.cede = api_cede; 2227 coroapi.cede = api_cede;
2058 coroapi.cede_notself = api_cede_notself; 2228 coroapi.cede_notself = api_cede_notself;
2059 coroapi.ready = api_ready; 2229 coroapi.ready = api_ready;
… …
2119 CODE: 2289 CODE:
2120 RETVAL = coro_nready; 2290 RETVAL = coro_nready;
2121 OUTPUT: 2291 OUTPUT:
2122 RETVAL 2292 RETVAL
2123 2293
2124void
2125throw (Coro::State self, SV *throw = &PL_sv_undef)
2126 PROTOTYPE: $;$
2127 CODE:
2128 SvREFCNT_dec (self->throw);
2129 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
2130
2131# for async_pool speedup 2294# for async_pool speedup
2132void 2295void
2133_pool_1 (SV *cb) 2296_pool_1 (SV *cb)
2134 CODE: 2297 CODE:
2135{ 2298{
… …
2178 sv_setsv (cb, &PL_sv_undef); 2341 sv_setsv (cb, &PL_sv_undef);
2179 2342
2180 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2343 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2181 coro->saved_deffh = 0; 2344 coro->saved_deffh = 0;
2182 2345
2183 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) 2346 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2184 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2347 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2185 { 2348 {
2186 SV *old = PL_diehook; 2349 SV *old = PL_diehook;
2187 PL_diehook = 0; 2350 PL_diehook = 0;
2188 SvREFCNT_dec (old); 2351 SvREFCNT_dec (old);
… …
2334 2497
2335MODULE = Coro::State PACKAGE = PerlIO::cede 2498MODULE = Coro::State PACKAGE = PerlIO::cede
2336 2499
2337BOOT: 2500BOOT:
2338 PerlIO_define_layer (aTHX_ &PerlIO_cede); 2501 PerlIO_define_layer (aTHX_ &PerlIO_cede);
2502

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