-#ifdef USE_THREADS
+#if defined(USE_THREADS) || defined(USE_ITHREADS)
#ifdef WIN32
-# include "win32/win32thread.h"
+# include <win32thread.h>
+#else
+# ifdef OLD_PTHREADS_API /* Here be dragons. */
+# define DETACH(t) \
+ STMT_START { \
+ if (pthread_detach(&(t)->self)) { \
+ MUTEX_UNLOCK(&(t)->mutex); \
+ Perl_croak_nocontext("panic: DETACH"); \
+ } \
+ } STMT_END
+
+# define PERL_GET_CONTEXT Perl_get_context()
+# define PERL_SET_CONTEXT(t) Perl_set_context((void*)t)
+
+# define PTHREAD_GETSPECIFIC_INT
+# ifdef DJGPP
+# define pthread_addr_t any_t
+# define NEED_PTHREAD_INIT
+# define PTHREAD_CREATE_JOINABLE (1)
+# endif
+# ifdef __OPEN_VM
+# define pthread_addr_t void *
+# endif
+# ifdef VMS
+# define pthread_attr_init(a) pthread_attr_create(a)
+# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_setdetach_np(a,s)
+# define PTHREAD_CREATE(t,a,s,d) pthread_create(t,a,s,d)
+# define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d))
+# define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
+# define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
+# endif
+# if defined(DJGPP) || defined(__OPEN_VM)
+# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,&(s))
+# define YIELD pthread_yield(NULL)
+# endif
+# endif
+# define pthread_mutexattr_default NULL
+# define pthread_condattr_default NULL
+#endif
+
+#ifndef PTHREAD_CREATE
+/* You are not supposed to pass NULL as the 2nd arg of PTHREAD_CREATE(). */
+# define PTHREAD_CREATE(t,a,s,d) pthread_create(t,&(a),s,d)
+#endif
+
+#ifndef PTHREAD_ATTR_SETDETACHSTATE
+# define PTHREAD_ATTR_SETDETACHSTATE(a,s) pthread_attr_setdetachstate(a,s)
+#endif
+
+#ifndef PTHREAD_CREATE_JOINABLE
+# ifdef OLD_PTHREAD_CREATE_JOINABLE
+# define PTHREAD_CREATE_JOINABLE OLD_PTHREAD_CREATE_JOINABLE
+# else
+# define PTHREAD_CREATE_JOINABLE 0 /* Panic? No, guess. */
+# endif
#endif
-/* POSIXish threads */
-typedef pthread_t perl_thread;
-#ifdef OLD_PTHREADS_API
-# define pthread_mutexattr_init(a) pthread_mutexattr_create(a)
-# define pthread_mutexattr_settype(a,t) pthread_mutexattr_setkind_np(a,t)
-# define pthread_key_create(k,d) pthread_keycreate(k,(pthread_destructor_t)(d))
-# define YIELD pthread_yield()
-# define DETACH(t) \
- STMT_START { \
- if (pthread_detach(&(t)->self)) { \
- MUTEX_UNLOCK(&(t)->mutex); \
- croak("panic: DETACH"); \
- } \
+#ifdef I_MACH_CTHREADS
+
+/* cthreads interface */
+
+/* #include <mach/cthreads.h> is in perl.h #ifdef I_MACH_CTHREADS */
+
+#define MUTEX_INIT(m) \
+ STMT_START { \
+ *m = mutex_alloc(); \
+ if (*m) { \
+ mutex_init(*m); \
+ } else { \
+ Perl_croak_nocontext("panic: MUTEX_INIT"); \
+ } \
} STMT_END
-#else
-# define pthread_mutexattr_default NULL
-# define pthread_condattr_default NULL
-# define pthread_attr_default NULL
-#endif /* OLD_PTHREADS_API */
+
+#define MUTEX_LOCK(m) mutex_lock(*m)
+#define MUTEX_UNLOCK(m) mutex_unlock(*m)
+#define MUTEX_DESTROY(m) \
+ STMT_START { \
+ mutex_free(*m); \
+ *m = 0; \
+ } STMT_END
+
+#define COND_INIT(c) \
+ STMT_START { \
+ *c = condition_alloc(); \
+ if (*c) { \
+ condition_init(*c); \
+ } \
+ else { \
+ Perl_croak_nocontext("panic: COND_INIT"); \
+ } \
+ } STMT_END
+
+#define COND_SIGNAL(c) condition_signal(*c)
+#define COND_BROADCAST(c) condition_broadcast(*c)
+#define COND_WAIT(c, m) condition_wait(*c, *m)
+#define COND_DESTROY(c) \
+ STMT_START { \
+ condition_free(*c); \
+ *c = 0; \
+ } STMT_END
+
+#define THREAD_CREATE(thr, f) (thr->self = cthread_fork(f, thr), 0)
+#define THREAD_POST_CREATE(thr)
+
+#define THREAD_RET_TYPE any_t
+#define THREAD_RET_CAST(x) ((any_t) x)
+
+#define DETACH(t) cthread_detach(t->self)
+#define JOIN(t, avp) (*(avp) = (AV *)cthread_join(t->self))
+
+#define PERL_SET_CONTEXT(t) cthread_set_data(cthread_self(), t)
+#define PERL_GET_CONTEXT cthread_data(cthread_self())
+
+#define INIT_THREADS cthread_init()
+#define YIELD cthread_yield()
+#define ALLOC_THREAD_KEY NOOP
+#define SET_THREAD_SELF(thr) (thr->self = cthread_self())
+
+#endif /* I_MACH_CTHREADS */
#ifndef YIELD
-# define YIELD sched_yield()
+# ifdef SCHED_YIELD
+# define YIELD SCHED_YIELD
+# else
+# ifdef HAS_SCHED_YIELD
+# define YIELD sched_yield()
+# else
+# ifdef HAS_PTHREAD_YIELD
+ /* pthread_yield(NULL) platforms are expected
+ * to have #defined YIELD for themselves. */
+# define YIELD pthread_yield()
+# endif
+# endif
+# endif
+#endif
+
+#ifdef __hpux
+# define MUTEX_INIT_NEEDS_MUTEX_ZEROED
#endif
#ifndef MUTEX_INIT
-#define MUTEX_INIT(m) \
+
+# ifdef MUTEX_INIT_NEEDS_MUTEX_ZEROED
+ /* Temporary workaround, true bug is deeper. --jhi 1999-02-25 */
+# define MUTEX_INIT(m) \
+ STMT_START { \
+ Zero((m), 1, perl_mutex); \
+ if (pthread_mutex_init((m), pthread_mutexattr_default)) \
+ Perl_croak_nocontext("panic: MUTEX_INIT"); \
+ } STMT_END
+# else
+# define MUTEX_INIT(m) \
STMT_START { \
if (pthread_mutex_init((m), pthread_mutexattr_default)) \
- croak("panic: MUTEX_INIT"); \
+ Perl_croak_nocontext("panic: MUTEX_INIT"); \
} STMT_END
-#define MUTEX_LOCK(m) \
- STMT_START { \
- if (pthread_mutex_lock((m))) \
- croak("panic: MUTEX_LOCK"); \
+# endif
+
+# define MUTEX_LOCK(m) \
+ STMT_START { \
+ if (pthread_mutex_lock((m))) \
+ Perl_croak_nocontext("panic: MUTEX_LOCK"); \
} STMT_END
-#define MUTEX_UNLOCK(m) \
- STMT_START { \
- if (pthread_mutex_unlock((m))) \
- croak("panic: MUTEX_UNLOCK"); \
+
+# define MUTEX_UNLOCK(m) \
+ STMT_START { \
+ if (pthread_mutex_unlock((m))) \
+ Perl_croak_nocontext("panic: MUTEX_UNLOCK"); \
} STMT_END
-#define MUTEX_DESTROY(m) \
- STMT_START { \
- if (pthread_mutex_destroy((m))) \
- croak("panic: MUTEX_DESTROY"); \
+
+# define MUTEX_DESTROY(m) \
+ STMT_START { \
+ if (pthread_mutex_destroy((m))) \
+ Perl_croak_nocontext("panic: MUTEX_DESTROY"); \
} STMT_END
#endif /* MUTEX_INIT */
#ifndef COND_INIT
-#define COND_INIT(c) \
+# define COND_INIT(c) \
STMT_START { \
if (pthread_cond_init((c), pthread_condattr_default)) \
- croak("panic: COND_INIT"); \
+ Perl_croak_nocontext("panic: COND_INIT"); \
} STMT_END
-#define COND_SIGNAL(c) \
- STMT_START { \
- if (pthread_cond_signal((c))) \
- croak("panic: COND_SIGNAL"); \
+
+# define COND_SIGNAL(c) \
+ STMT_START { \
+ if (pthread_cond_signal((c))) \
+ Perl_croak_nocontext("panic: COND_SIGNAL"); \
} STMT_END
-#define COND_BROADCAST(c) \
- STMT_START { \
- if (pthread_cond_broadcast((c))) \
- croak("panic: COND_BROADCAST"); \
+
+# define COND_BROADCAST(c) \
+ STMT_START { \
+ if (pthread_cond_broadcast((c))) \
+ Perl_croak_nocontext("panic: COND_BROADCAST"); \
} STMT_END
-#define COND_WAIT(c, m) \
- STMT_START { \
- if (pthread_cond_wait((c), (m))) \
- croak("panic: COND_WAIT"); \
+
+# define COND_WAIT(c, m) \
+ STMT_START { \
+ if (pthread_cond_wait((c), (m))) \
+ Perl_croak_nocontext("panic: COND_WAIT"); \
} STMT_END
-#define COND_DESTROY(c) \
- STMT_START { \
- if (pthread_cond_destroy((c))) \
- croak("panic: COND_DESTROY"); \
+
+# define COND_DESTROY(c) \
+ STMT_START { \
+ if (pthread_cond_destroy((c))) \
+ Perl_croak_nocontext("panic: COND_DESTROY"); \
} STMT_END
#endif /* COND_INIT */
/* DETACH(t) must only be called while holding t->mutex */
#ifndef DETACH
-#define DETACH(t) \
- STMT_START { \
- if (pthread_detach((t)->self)) { \
- MUTEX_UNLOCK(&(t)->mutex); \
- croak("panic: DETACH"); \
- } \
+# define DETACH(t) \
+ STMT_START { \
+ if (pthread_detach((t)->self)) { \
+ MUTEX_UNLOCK(&(t)->mutex); \
+ Perl_croak_nocontext("panic: DETACH"); \
+ } \
} STMT_END
#endif /* DETACH */
#ifndef JOIN
-#define JOIN(t, avp) \
- STMT_START { \
- if (pthread_join((t)->self, (void**)(avp))) \
- croak("panic: pthread_join"); \
+# define JOIN(t, avp) \
+ STMT_START { \
+ if (pthread_join((t)->self, (void**)(avp))) \
+ Perl_croak_nocontext("panic: pthread_join"); \
} STMT_END
#endif /* JOIN */
-#ifndef SET_THR
-#define SET_THR(t) \
- STMT_START { \
- if (pthread_setspecific(thr_key, (void *) (t))) \
- croak("panic: pthread_setspecific"); \
- } STMT_END
-#endif /* SET_THR */
-
-#ifndef THR
-# ifdef OLD_PTHREADS_API
-struct thread *getTHR _((void));
-# define THR getTHR()
-# else
-# define THR ((struct thread *) pthread_getspecific(thr_key))
-# endif /* OLD_PTHREADS_API */
-#endif /* THR */
+#ifndef PERL_GET_CONTEXT
+# define PERL_GET_CONTEXT pthread_getspecific(PL_thr_key)
+#endif
-#ifndef dTHR
-# define dTHR struct thread *thr = THR
-#endif /* dTHR */
+#ifndef PERL_SET_CONTEXT
+# define PERL_SET_CONTEXT(t) \
+ STMT_START { \
+ if (pthread_setspecific(PL_thr_key, (void *)(t))) \
+ Perl_croak_nocontext("panic: pthread_setspecific"); \
+ } STMT_END
+#endif /* PERL_SET_CONTEXT */
#ifndef INIT_THREADS
# ifdef NEED_PTHREAD_INIT
# define INIT_THREADS pthread_init()
-# else
-# define INIT_THREADS NOOP
# endif
#endif
+#ifndef ALLOC_THREAD_KEY
+# define ALLOC_THREAD_KEY \
+ STMT_START { \
+ if (pthread_key_create(&PL_thr_key, 0)) { \
+ fprintf(stderr, "panic: pthread_key_create"); \
+ exit(1); \
+ } \
+ } STMT_END
+#endif
+
#ifndef THREAD_RET_TYPE
# define THREAD_RET_TYPE void *
# define THREAD_RET_CAST(p) ((void *)(p))
#endif /* THREAD_RET */
-struct thread {
- /* The fields that used to be global */
- /* Important ones in the first cache line (if alignment is done right) */
- SV ** Tstack_sp;
-#ifdef OP_IN_REGISTER
- OP * Topsave;
-#else
- OP * Top;
-#endif
- SV ** Tcurpad;
- SV ** Tstack_base;
-
- SV ** Tstack_max;
-
- I32 * Tscopestack;
- I32 Tscopestack_ix;
- I32 Tscopestack_max;
-
- ANY * Tsavestack;
- I32 Tsavestack_ix;
- I32 Tsavestack_max;
-
- OP ** Tretstack;
- I32 Tretstack_ix;
- I32 Tretstack_max;
-
- I32 * Tmarkstack;
- I32 * Tmarkstack_ptr;
- I32 * Tmarkstack_max;
-
- SV * TSv;
- XPV * TXpv;
- struct stat Tstatbuf;
- struct tms Ttimesbuf;
-
- /* XXX What about regexp stuff? */
-
- /* Now the fields that used to be "per interpreter" (even when global) */
-
- /* Fields used by magic variables such as $@, $/ and so on */
- bool Ttainted;
- PMOP * Tcurpm;
- SV * Tnrs;
- SV * Trs;
- GV * Tlast_in_gv;
- char * Tofs;
- STRLEN Tofslen;
- GV * Tdefoutgv;
- char * Tchopset;
- SV * Tformtarget;
- SV * Tbodytarget;
- SV * Ttoptarget;
-
- /* Stashes */
- HV * Tdefstash;
- HV * Tcurstash;
-
- /* Stacks */
- SV ** Ttmps_stack;
- I32 Ttmps_ix;
- I32 Ttmps_floor;
- I32 Ttmps_max;
-
- int Tin_eval;
- OP * Trestartop;
- int Tdelaymagic;
- bool Tdirty;
- U8 Tlocalizing;
- COP * Tcurcop;
-
- CONTEXT * Tcxstack;
- I32 Tcxstack_ix;
- I32 Tcxstack_max;
-
- AV * Tcurstack;
- AV * Tmainstack;
- JMPENV * Ttop_env;
- I32 Trunlevel;
-
- /* XXX Sort stuff, firstgv, secongv and so on? */
-
- SV * oursv;
- HV * cvcache;
- perl_thread self; /* Underlying thread object */
- U32 flags;
- AV * magicals; /* Per-thread magicals */
- AV * specific; /* Thread-specific user data */
- SV * errsv; /* Backing SV for $@ */
- HV * errhv; /* HV for what was %@ in pp_ctl.c */
- perl_mutex mutex; /* For the fields others can change */
- U32 tid;
- struct thread *next, *prev; /* Circular linked list of threads */
-
-#ifdef ADD_THREAD_INTERN
- struct thread_intern i; /* Platform-dependent internals */
-#endif
- char trailing_nul; /* For the sake of thrsv and oursv */
-};
+#if defined(USE_THREADS)
+
+/* Accessor for per-thread SVs */
+# define THREADSV(i) (thr->threadsvp[i])
+
+/*
+ * LOCK_SV_MUTEX and UNLOCK_SV_MUTEX are performance-critical. Here, we
+ * try only locking them if there may be more than one thread in existence.
+ * Systems with very fast mutexes (and/or slow conditionals) may wish to
+ * remove the "if (threadnum) ..." test.
+ * XXX do NOT use C<if (PL_threadnum) ...> -- it sets up race conditions!
+ */
+# define LOCK_SV_MUTEX MUTEX_LOCK(&PL_sv_mutex)
+# define UNLOCK_SV_MUTEX MUTEX_UNLOCK(&PL_sv_mutex)
+# define LOCK_STRTAB_MUTEX MUTEX_LOCK(&PL_strtab_mutex)
+# define UNLOCK_STRTAB_MUTEX MUTEX_UNLOCK(&PL_strtab_mutex)
+# define LOCK_CRED_MUTEX MUTEX_LOCK(&PL_cred_mutex)
+# define UNLOCK_CRED_MUTEX MUTEX_UNLOCK(&PL_cred_mutex)
-typedef struct thread *Thread;
/* Values and macros for thr->flags */
#define THRf_STATE_MASK 7
#define THRf_ZOMBIE 3
#define THRf_DEAD 4
-#define THRf_DIE_FATAL 8
+#define THRf_DID_DIE 8
/* ThrSTATE(t) and ThrSETSTATE(t) must only be called while holding t->mutex */
-#define ThrSTATE(t) ((t)->flags)
+#define ThrSTATE(t) ((t)->flags & THRf_STATE_MASK)
#define ThrSETSTATE(t, s) STMT_START { \
(t)->flags &= ~THRf_STATE_MASK; \
(t)->flags |= (s); \
- DEBUG_L(PerlIO_printf(PerlIO_stderr(), \
+ DEBUG_S(PerlIO_printf(Perl_debug_log, \
"thread %p set to state %d\n", (t), (s))); \
} STMT_END
#define MgCONDP(mg) (&((condpair_t *)(mg->mg_ptr))->cond)
#define MgOWNER(mg) ((condpair_t *)(mg->mg_ptr))->owner
-#undef stack_base
-#undef stack_sp
-#undef stack_max
-#undef curstack
-#undef mainstack
-#undef markstack
-#undef markstack_ptr
-#undef markstack_max
-#undef scopestack
-#undef scopestack_ix
-#undef scopestack_max
-#undef savestack
-#undef savestack_ix
-#undef savestack_max
-#undef retstack
-#undef retstack_ix
-#undef retstack_max
-#undef curcop
-#undef cxstack
-#undef cxstack_ix
-#undef cxstack_max
-#undef defstash
-#undef curstash
-#undef tmps_stack
-#undef tmps_floor
-#undef tmps_ix
-#undef tmps_max
-#undef curpad
-#undef Sv
-#undef Xpv
-#undef statbuf
-#undef timesbuf
-#undef tainted
-#undef curpm
-#undef nrs
-#undef rs
-#undef last_in_gv
-#undef ofs
-#undef ofslen
-#undef defoutgv
-#undef chopset
-#undef formtarget
-#undef bodytarget
-#undef toptarget
-#undef top_env
-#undef runlevel
-#undef in_eval
-#undef restartop
-#undef delaymagic
-#undef dirty
-#undef localizing
-
-#define stack_base (thr->Tstack_base)
-#define stack_sp (thr->Tstack_sp)
-#define stack_max (thr->Tstack_max)
-#ifdef OP_IN_REGISTER
-#define opsave (thr->Topsave)
-#else
-#undef op
-#define op (thr->Top)
+#endif /* USE_THREADS */
+#endif /* USE_THREADS || USE_ITHREADS */
+
+#ifndef MUTEX_LOCK
+# define MUTEX_LOCK(m)
#endif
-#define curcop (thr->Tcurcop)
-#define stack (thr->Tstack)
-#define curstack (thr->Tcurstack)
-#define mainstack (thr->Tmainstack)
-#define markstack (thr->Tmarkstack)
-#define markstack_ptr (thr->Tmarkstack_ptr)
-#define markstack_max (thr->Tmarkstack_max)
-#define scopestack (thr->Tscopestack)
-#define scopestack_ix (thr->Tscopestack_ix)
-#define scopestack_max (thr->Tscopestack_max)
-
-#define savestack (thr->Tsavestack)
-#define savestack_ix (thr->Tsavestack_ix)
-#define savestack_max (thr->Tsavestack_max)
-
-#define retstack (thr->Tretstack)
-#define retstack_ix (thr->Tretstack_ix)
-#define retstack_max (thr->Tretstack_max)
-
-#define cxstack (thr->Tcxstack)
-#define cxstack_ix (thr->Tcxstack_ix)
-#define cxstack_max (thr->Tcxstack_max)
-
-#define curpad (thr->Tcurpad)
-#define Sv (thr->TSv)
-#define Xpv (thr->TXpv)
-#define statbuf (thr->Tstatbuf)
-#define timesbuf (thr->Ttimesbuf)
-#define tainted (thr->Ttainted)
-#define tainted (thr->Ttainted)
-#define curpm (thr->Tcurpm)
-#define nrs (thr->Tnrs)
-#define rs (thr->Trs)
-#define last_in_gv (thr->Tlast_in_gv)
-#define ofs (thr->Tofs)
-#define ofslen (thr->Tofslen)
-#define defoutgv (thr->Tdefoutgv)
-#define chopset (thr->Tchopset)
-#define formtarget (thr->Tformtarget)
-#define bodytarget (thr->Tbodytarget)
-#define toptarget (thr->Ttoptarget)
-#define defstash (thr->Tdefstash)
-#define curstash (thr->Tcurstash)
-
-#define tmps_stack (thr->Ttmps_stack)
-#define tmps_ix (thr->Ttmps_ix)
-#define tmps_floor (thr->Ttmps_floor)
-#define tmps_max (thr->Ttmps_max)
-
-#define in_eval (thr->Tin_eval)
-#define restartop (thr->Trestartop)
-#define delaymagic (thr->Tdelaymagic)
-#define dirty (thr->Tdirty)
-#define localizing (thr->Tlocalizing)
-
-#define top_env (thr->Ttop_env)
-#define runlevel (thr->Trunlevel)
-#else
-/* USE_THREADS is not defined */
-#define MUTEX_LOCK(m)
-#define MUTEX_UNLOCK(m)
-#define MUTEX_INIT(m)
-#define MUTEX_DESTROY(m)
-#define COND_INIT(c)
-#define COND_SIGNAL(c)
-#define COND_BROADCAST(c)
-#define COND_WAIT(c, m)
-#define COND_DESTROY(c)
-
-#define THR
-/* Rats: if dTHR is just blank then the subsequent ";" throws an error */
-#define dTHR extern int errno
-#endif /* USE_THREADS */
+#ifndef MUTEX_UNLOCK
+# define MUTEX_UNLOCK(m)
+#endif
+
+#ifndef MUTEX_INIT
+# define MUTEX_INIT(m)
+#endif
+
+#ifndef MUTEX_DESTROY
+# define MUTEX_DESTROY(m)
+#endif
+
+#ifndef COND_INIT
+# define COND_INIT(c)
+#endif
+
+#ifndef COND_SIGNAL
+# define COND_SIGNAL(c)
+#endif
+
+#ifndef COND_BROADCAST
+# define COND_BROADCAST(c)
+#endif
+
+#ifndef COND_WAIT
+# define COND_WAIT(c, m)
+#endif
+
+#ifndef COND_DESTROY
+# define COND_DESTROY(c)
+#endif
+
+#ifndef LOCK_SV_MUTEX
+# define LOCK_SV_MUTEX
+#endif
+
+#ifndef UNLOCK_SV_MUTEX
+# define UNLOCK_SV_MUTEX
+#endif
+
+#ifndef LOCK_STRTAB_MUTEX
+# define LOCK_STRTAB_MUTEX
+#endif
+
+#ifndef UNLOCK_STRTAB_MUTEX
+# define UNLOCK_STRTAB_MUTEX
+#endif
+
+#ifndef LOCK_CRED_MUTEX
+# define LOCK_CRED_MUTEX
+#endif
+
+#ifndef UNLOCK_CRED_MUTEX
+# define UNLOCK_CRED_MUTEX
+#endif
+
+/* THR, SET_THR, and dTHR are there for compatibility with old versions */
+#ifndef THR
+# define THR PERL_GET_THX
+#endif
+
+#ifndef SET_THR
+# define SET_THR(t) PERL_SET_THX(t)
+#endif
+
+#ifndef dTHR
+# define dTHR dNOOP
+#endif
+
+#ifndef INIT_THREADS
+# define INIT_THREADS NOOP
+#endif
https://perl5.git.perl.org / perl5.git / blobdiff