rpl/src/semaphores.c - diff

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version 1.49, 2012/08/22 10:47:19	version 1.54, 2013/02/26 19:56:18
Line 1	Line 1
/*	/*
================================================================================	================================================================================
RPL/2 (R) version 4.1.10	RPL/2 (R) version 4.1.12
Copyright (C) 1989-2012 Dr. BERTRAND Joël	Copyright (C) 1989-2013 Dr. BERTRAND Joël

This file is part of RPL/2.	This file is part of RPL/2.

Line 455 sem_wait_SysV(sem_t *semaphore)	Line 455 sem_wait_SysV(sem_t *semaphore)
# ifndef OS2 // IPCS_SYSV	# ifndef OS2 // IPCS_SYSV
struct sembuf commande;	struct sembuf commande;

	// semop() ne renvoie pas EINTR sur un signal !

commande.sem_num = 0;	commande.sem_num = 0;
commande.sem_op = -1;	commande.sem_op = -1;
commande.sem_flg = 0;	commande.sem_flg = 0;

while(semop((*semaphore).sem, &commande, 1) == -1)	if (semop((*semaphore).sem, &commande, 1) == -1)
{	{
if (errno != EINTR)	if (errno != EAGAIN)
{	{
errno = EINVAL;	errno = EINVAL;
return(-1);	return(-1);
}	}
	else
	{
	return(-1);
	}
}	}

return(0);	return(0);
Line 513 sem_trywait_SysV(sem_t *semaphore)	Line 519 sem_trywait_SysV(sem_t *semaphore)
commande.sem_op = -1;	commande.sem_op = -1;
commande.sem_flg = IPC_NOWAIT;	commande.sem_flg = IPC_NOWAIT;

while(semop((*semaphore).sem, &commande, 1) == -1)	if (semop((*semaphore).sem, &commande, 1) == -1)
{	{
if (errno != EINTR)	return(-1);
{
errno = EINVAL;
return(-1);
}
}	}

return(0);	return(0);