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root |
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/* solaris */ |
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#define _POSIX_PTHREAD_SEMANTICS 1 |
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#if __linux && !defined(_GNU_SOURCE) |
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# define _GNU_SOURCE |
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#endif |
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/* just in case */ |
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#define _REENTRANT 1 |
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#include <signal.h> |
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#include <pthread.h> |
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#ifndef PTHREAD_STACK_MIN |
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/* care for broken platforms, e.g. windows */ |
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# define PTHREAD_STACK_MIN 16384 |
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#endif |
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#if __ia64 |
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# define STACKSIZE 65536 |
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#elif __i386 || __x86_64 /* 16k is unreasonably high :( */ |
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# define STACKSIZE PTHREAD_STACK_MIN |
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#else |
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# define STACKSIZE 16384 |
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#endif |
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/* wether word reads are potentially non-atomic. |
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* this is conservatice, likely most arches this runs |
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* on have atomic word read/writes. |
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*/ |
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#ifndef WORDACCESS_UNSAFE |
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# if __i386 || __x86_64 |
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# define WORDACCESS_UNSAFE 0 |
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# else |
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# define WORDACCESS_UNSAFE 1 |
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# endif |
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#endif |
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typedef pthread_mutex_t mutex_t; |
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#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP) |
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# define MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP |
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#else |
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# define MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
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#endif |
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typedef pthread_cond_t cond_t; |
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#define COND_INIT PTHREAD_COND_INITIALIZER |
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#define LOCK(mutex) pthread_mutex_lock (&(mutex)) |
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#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex)) |
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#define COND_SIGNAL(cond) pthread_cond_signal (&(cond)) |
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#define COND_WAIT(cond,mutex) pthread_cond_wait (&(cond), &(mutex)) |
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#define COND_TIMEDWAIT(cond,mutex,to) pthread_cond_timedwait (&(cond), &(mutex), &(to)) |
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typedef pthread_t thread_t; |
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static int thread_create (thread_t *tid, void *(*proc)(void *), void *arg) |
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{ |
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int retval; |
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sigset_t fullsigset, oldsigset; |
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pthread_attr_t attr; |
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pthread_attr_init (&attr); |
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pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
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#ifdef PTHREAD_SCOPE_PROCESS |
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pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
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#endif |
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sigfillset (&fullsigset); |
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pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset); |
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retval = pthread_create (tid, &attr, proc, arg) == 0; |
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pthread_sigmask (SIG_SETMASK, &oldsigset, 0); |
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return retval; |
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} |
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#define ATFORK(prepare,parent,child) pthread_atfork (prepare, parent, child) |
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