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[/] [openrisc/] [trunk/] [rtos/] [ecos-3.0/] [packages/] [compat/] [posix/] [current/] [include/] [mutex.h] - Rev 810
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#ifndef CYGONCE_POSIX_MUTEX_H #define CYGONCE_POSIX_MUTEX_H //============================================================================= // // mutex.h // // POSIX mutex and condition variable function definitions // //============================================================================= // ####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc. // // eCos is free software; you can redistribute it and/or modify it under // the terms of the GNU General Public License as published by the Free // Software Foundation; either version 2 or (at your option) any later // version. // // eCos is distributed in the hope that it will be useful, but WITHOUT // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // You should have received a copy of the GNU General Public License // along with eCos; if not, write to the Free Software Foundation, Inc., // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. // // As a special exception, if other files instantiate templates or use // macros or inline functions from this file, or you compile this file // and link it with other works to produce a work based on this file, // this file does not by itself cause the resulting work to be covered by // the GNU General Public License. However the source code for this file // must still be made available in accordance with section (3) of the GNU // General Public License v2. // // This exception does not invalidate any other reasons why a work based // on this file might be covered by the GNU General Public License. // ------------------------------------------- // ####ECOSGPLCOPYRIGHTEND#### //============================================================================= //#####DESCRIPTIONBEGIN#### // // Author(s): nickg,jlarmour // Contributors: // Date: 2001-09-10 // Purpose: POSIX mutex and condition variable function definitions // Description: This header contains POSIX API definitions for mutexes // and cond vars. // // Usage: #include <pthread.h> // // //####DESCRIPTIONEND#### // //============================================================================= #include <pkgconf/posix.h> #include <sys/types.h> // pthread_* types #include <time.h> //============================================================================= // Mutexes //----------------------------------------------------------------------------- // Mutex attributes manipulation functions // Initialize attribute object externC int pthread_mutexattr_init ( pthread_mutexattr_t *attr); // Destroy attribute object externC int pthread_mutexattr_destroy ( pthread_mutexattr_t *attr); #if defined(_POSIX_THREAD_PRIO_INHERIT) || defined(_POSIX_THREAD_PRIO_PROTECT) // Set priority inversion protection protocol externC int pthread_mutexattr_setprotocol ( pthread_mutexattr_t *attr, int protocol); // Get priority inversion protection protocol externC int pthread_mutexattr_getprotocol ( pthread_mutexattr_t *attr, int *protocol); #if defined(_POSIX_THREAD_PRIO_PROTECT) // Set priority for priority ceiling protocol externC int pthread_mutexattr_setprioceiling ( pthread_mutexattr_t *attr, int prioceiling); // Get priority for priority ceiling protocol externC int pthread_mutexattr_getprioceiling ( pthread_mutexattr_t *attr, int *prioceiling); // Set priority ceiling of given thread, returning old ceiling. externC int pthread_mutex_setprioceiling( pthread_mutex_t *mutex, int prioceiling, int *old_ceiling); // Get priority ceiling of given thread externC int pthread_mutex_getprioceiling( pthread_mutex_t *mutex, int *prioceiling); #endif #endif //----------------------------------------------------------------------------- // Mutex functions // Initialize mutex. If mutex_attr is NULL, use default attributes. externC int pthread_mutex_init (pthread_mutex_t *mutex, const pthread_mutexattr_t *mutex_attr); // Destroy mutex. externC int pthread_mutex_destroy (pthread_mutex_t *mutex); // Lock mutex, waiting for it if necessary. externC int pthread_mutex_lock (pthread_mutex_t *mutex); // Try to lock mutex. externC int pthread_mutex_trylock (pthread_mutex_t *mutex); // Unlock mutex. externC int pthread_mutex_unlock (pthread_mutex_t *mutex); //============================================================================= // Condition Variables //----------------------------------------------------------------------------- // Attribute manipulation functions // We do not actually support any attributes at present, so these do nothing. // Initialize condition variable attributes externC int pthread_condattr_init (pthread_condattr_t *attr); // Destroy condition variable attributes externC int pthread_condattr_destroy (pthread_condattr_t *attr); //----------------------------------------------------------------------------- // Condition variable functions // Initialize condition variable. externC int pthread_cond_init (pthread_cond_t *cond, const pthread_condattr_t *attr); // Destroy condition variable. externC int pthread_cond_destroy (pthread_cond_t *cond); // Wake up one thread waiting for condition variable externC int pthread_cond_signal (pthread_cond_t *cond); // Wake up all threads waiting for condition variable externC int pthread_cond_broadcast (pthread_cond_t *cond); // Block on condition variable until signalled. The mutex is // assumed to be locked before this call, will be unlocked // during the wait, and will be re-locked on wakeup. externC int pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex); // Block on condition variable until signalled, or the timeout expires. externC int pthread_cond_timedwait (pthread_cond_t *cond, pthread_mutex_t *mutex, const struct timespec *abstime); //----------------------------------------------------------------------------- #endif // ifndef CYGONCE_POSIX_MUTEX_H // End of mutex.h
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