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721 |
jeremybenn |
/* Our pthread support normally needs to intercept a number of thread */
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/* calls. We arrange to do that here, if appropriate. */
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#ifndef GC_PTHREAD_REDIRECTS_H
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#define GC_PTHREAD_REDIRECTS_H
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#if defined(GC_SOLARIS_THREADS)
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/* We need to intercept calls to many of the threads primitives, so */
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/* that we can locate thread stacks and stop the world. */
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/* Note also that the collector cannot see thread specific data. */
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/* Thread specific data should generally consist of pointers to */
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/* uncollectable objects (allocated with GC_malloc_uncollectable, */
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/* not the system malloc), which are deallocated using the destructor */
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/* facility in thr_keycreate. Alternatively, keep a redundant pointer */
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/* to thread specific data on the thread stack. */
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# include <thread.h>
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int GC_thr_create(void *stack_base, size_t stack_size,
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void *(*start_routine)(void *), void *arg, long flags,
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thread_t *new_thread);
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int GC_thr_join(thread_t wait_for, thread_t *departed, void **status);
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int GC_thr_suspend(thread_t target_thread);
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int GC_thr_continue(thread_t target_thread);
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void * GC_dlopen(const char *path, int mode);
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# define thr_create GC_thr_create
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# define thr_join GC_thr_join
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# define thr_suspend GC_thr_suspend
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# define thr_continue GC_thr_continue
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#endif /* GC_SOLARIS_THREADS */
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#if defined(GC_SOLARIS_PTHREADS)
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# include <pthread.h>
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# include <signal.h>
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extern int GC_pthread_create(pthread_t *new_thread,
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const pthread_attr_t *attr,
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void * (*thread_execp)(void *), void *arg);
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extern int GC_pthread_join(pthread_t wait_for, void **status);
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# define pthread_join GC_pthread_join
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# define pthread_create GC_pthread_create
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#endif
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#if defined(GC_SOLARIS_PTHREADS) || defined(GC_SOLARIS_THREADS)
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# define dlopen GC_dlopen
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#endif /* SOLARIS_THREADS || SOLARIS_PTHREADS */
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#if !defined(GC_USE_LD_WRAP) && defined(GC_PTHREADS) && !defined(GC_SOLARIS_PTHREADS)
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/* We treat these similarly. */
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# include <pthread.h>
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# include <signal.h>
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int GC_pthread_create(pthread_t *new_thread,
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const pthread_attr_t *attr,
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void *(*start_routine)(void *), void *arg);
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#ifndef GC_DARWIN_THREADS
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int GC_pthread_sigmask(int how, const sigset_t *set, sigset_t *oset);
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#endif
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int GC_pthread_join(pthread_t thread, void **retval);
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int GC_pthread_detach(pthread_t thread);
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#if defined(GC_OSF1_THREADS) \
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&& defined(_PTHREAD_USE_MANGLED_NAMES_) && !defined(_PTHREAD_USE_PTDNAM_)
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/* Unless the compiler supports #pragma extern_prefix, the Tru64 UNIX
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<pthread.h> redefines some POSIX thread functions to use mangled names.
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If so, undef them before redefining. */
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# undef pthread_create
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# undef pthread_join
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# undef pthread_detach
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#endif
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# define pthread_create GC_pthread_create
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# define pthread_join GC_pthread_join
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# define pthread_detach GC_pthread_detach
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#ifndef GC_DARWIN_THREADS
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# define pthread_sigmask GC_pthread_sigmask
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# define dlopen GC_dlopen
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#endif
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#endif /* GC_xxxxx_THREADS */
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#endif /* GC_PTHREAD_REDIRECTS_H */
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