diff options
Diffstat (limited to 'contrib/perl5/thread.h')
| -rw-r--r-- | contrib/perl5/thread.h | 106 |
1 files changed, 98 insertions, 8 deletions
diff --git a/contrib/perl5/thread.h b/contrib/perl5/thread.h index 3eb061a..089077c 100644 --- a/contrib/perl5/thread.h +++ b/contrib/perl5/thread.h @@ -35,6 +35,68 @@ # endif #endif +#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 { \ + croak("panic: MUTEX_INIT"); \ + } \ + } STMT_END + +#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 { \ + croak("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 SET_THR(thr) cthread_set_data(cthread_self(), thr) +#define THR cthread_data(cthread_self()) + +#define INIT_THREADS cthread_init() +#define YIELD cthread_yield() +#define ALLOC_THREAD_KEY +#define SET_THREAD_SELF(thr) (thr->self = cthread_self()) + +#endif /* I_MACH_CTHREADS */ + #ifndef YIELD # ifdef HAS_SCHED_YIELD # define YIELD sched_yield() @@ -45,12 +107,26 @@ # endif #endif +#ifdef __hpux +# define MUTEX_INIT_NEEDS_MUTEX_ZEROED +#endif + #ifndef MUTEX_INIT +#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)) \ + croak("panic: MUTEX_INIT"); \ + } STMT_END +#else #define MUTEX_INIT(m) \ STMT_START { \ if (pthread_mutex_init((m), pthread_mutexattr_default)) \ croak("panic: MUTEX_INIT"); \ } STMT_END +#endif #define MUTEX_LOCK(m) \ STMT_START { \ if (pthread_mutex_lock((m))) \ @@ -138,6 +214,8 @@ struct perl_thread *getTHR _((void)); * from thrsv which is cached in the per-interpreter structure. * Systems with very fast pthread_get_specific (which should be all systems * but unfortunately isn't) may wish to simplify to "...*thr = THR". + * + * The use of PL_threadnum should be safe here. */ #ifndef dTHR # define dTHR \ @@ -160,17 +238,27 @@ struct perl_thread *getTHR _((void)); * 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 \ - STMT_START { \ - if (PL_threadnum) \ - MUTEX_LOCK(&PL_sv_mutex); \ +#define LOCK_SV_MUTEX \ + STMT_START { \ + MUTEX_LOCK(&PL_sv_mutex); \ } STMT_END -#define UNLOCK_SV_MUTEX \ - STMT_START { \ - if (PL_threadnum) \ - MUTEX_UNLOCK(&PL_sv_mutex); \ +#define UNLOCK_SV_MUTEX \ + STMT_START { \ + MUTEX_UNLOCK(&PL_sv_mutex); \ + } STMT_END + +/* Likewise for strtab_mutex */ +#define LOCK_STRTAB_MUTEX \ + STMT_START { \ + MUTEX_LOCK(&PL_strtab_mutex); \ + } STMT_END + +#define UNLOCK_STRTAB_MUTEX \ + STMT_START { \ + MUTEX_UNLOCK(&PL_strtab_mutex); \ } STMT_END #ifndef THREAD_RET_TYPE @@ -223,6 +311,8 @@ typedef struct condpair { #define COND_DESTROY(c) #define LOCK_SV_MUTEX #define UNLOCK_SV_MUTEX +#define LOCK_STRTAB_MUTEX +#define UNLOCK_STRTAB_MUTEX #define THR /* Rats: if dTHR is just blank then the subsequent ";" throws an error */ |
