75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
#ifndef THREAD_COMPAT_H
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#define THREAD_COMPAT_H
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#ifndef NO_PTHREADS
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#include <pthread.h>
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#define HAVE_THREADS 1
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#else
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#define HAVE_THREADS 0
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/*
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* macros instead of typedefs because pthread definitions may have
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* been pulled in by some system dependencies even though the user
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* wants to disable pthread.
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*/
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#define pthread_t int
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#define pthread_mutex_t int
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#define pthread_cond_t int
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#define pthread_key_t int
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#define pthread_mutex_init(mutex, attr) dummy_pthread_init(mutex)
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#define pthread_mutex_lock(mutex)
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#define pthread_mutex_unlock(mutex)
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#define pthread_mutex_destroy(mutex)
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#define pthread_cond_init(cond, attr) dummy_pthread_init(cond)
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#define pthread_cond_wait(cond, mutex)
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#define pthread_cond_signal(cond)
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#define pthread_cond_broadcast(cond)
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#define pthread_cond_destroy(cond)
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#define pthread_key_create(key, attr) dummy_pthread_init(key)
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#define pthread_key_delete(key)
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#define pthread_create(thread, attr, fn, data) \
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dummy_pthread_create(thread, attr, fn, data)
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#define pthread_join(thread, retval) \
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dummy_pthread_join(thread, retval)
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#define pthread_setspecific(key, data)
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#define pthread_getspecific(key) NULL
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int dummy_pthread_create(pthread_t *pthread, const void *attr,
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void *(*fn)(void *), void *data);
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int dummy_pthread_join(pthread_t pthread, void **retval);
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int dummy_pthread_init(void *);
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#endif
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int online_cpus(void);
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int init_recursive_mutex(pthread_mutex_t*);
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#ifdef THREAD_BARRIER_PTHREAD
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#define maybe_thread_barrier_t pthread_barrier_t
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#define maybe_thread_barrier_init pthread_barrier_init
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#define maybe_thread_barrier_wait pthread_barrier_wait
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#define maybe_thread_barrier_destroy pthread_barrier_destroy
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#else
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#define maybe_thread_barrier_t int
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static inline int maybe_thread_barrier_init(maybe_thread_barrier_t *b UNUSED,
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void *attr UNUSED,
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unsigned nr UNUSED)
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{
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errno = ENOSYS;
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return -1;
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}
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#define maybe_thread_barrier_wait(barrier)
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#define maybe_thread_barrier_destroy(barrier)
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#endif
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#endif /* THREAD_COMPAT_H */
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