-/** fosa_mutexes_and_condvars.h
- *
- * < description >
- * < author >
- * < date >
- */
+// -----------------------------------------------------------------------
+// Copyright (C) 2006 - 2009 FRESCOR consortium partners:
+//
+// Universidad de Cantabria, SPAIN
+// University of York, UK
+// Scuola Superiore Sant'Anna, ITALY
+// Kaiserslautern University, GERMANY
+// Univ. Politécnica Valencia, SPAIN
+// Czech Technical University in Prague, CZECH REPUBLIC
+// ENEA SWEDEN
+// Thales Communication S.A. FRANCE
+// Visual Tools S.A. SPAIN
+// Rapita Systems Ltd UK
+// Evidence ITALY
+//
+// See http://www.frescor.org for a link to partners' websites
+//
+// FRESCOR project (FP6/2005/IST/5-034026) is funded
+// in part by the European Union Sixth Framework Programme
+// The European Union is not liable of any use that may be
+// made of this code.
+//
+//
+// based on previous work (FSF) done in the FIRST project
+//
+// Copyright (C) 2005 Mälardalen University, SWEDEN
+// Scuola Superiore S.Anna, ITALY
+// Universidad de Cantabria, SPAIN
+// University of York, UK
+//
+// FSF API web pages: http://marte.unican.es/fsf/docs
+// http://shark.sssup.it/contrib/first/docs/
+//
+// This file is part of FOSA (Frsh Operating System Adaption)
+//
+// FOSA is free software; you can redistribute it and/or modify it
+// under terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option) any
+// later version. FOSA 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 FOSA; see file
+// COPYING. If not, write to the Free Software Foundation, 675 Mass Ave,
+// Cambridge, MA 02139, USA.
+//
+// As a special exception, including FOSA header files in a file,
+// instantiating FOSA generics or templates, or linking other files
+// with FOSA objects to produce an executable application, does not
+// by itself cause the resulting executable application to be covered
+// by the GNU General Public License. This exception does not
+// however invalidate any other reasons why the executable file might be
+// covered by the GNU Public License.
+// -----------------------------------------------------------------------
+//==============================================
+// ******** ****** ******** **********
+// **///// /** ** **////// /** /**
+// ** /** ** /** /** /**
+// ******* /** ** /********* /**********
+// **//// /** ** ////////** /**//////**
+// ** /** ** /** /** /**
+// ** /** ** ******** /** /**
+// // /******/ //////// // //
+//
+// FOSA(Frescor Operating System Adaptation layer)
+//================================================
#include <fosa_mutexes_and_condvars.h>
+#include <fosa_time.h>
/*******************************************************
* Mutexes with priority ceiling
******************************************************/
-int fosa_mutex_init(frsh_mutex_t *mutex, int prioceiling);
-int fosa_mutex_destroy(frsh_mutex_t *mutex);
+int fosa_mutex_init(fosa_mutex_t *mutex, int prioceiling)
+{
+ pthread_mutexattr_t attr;
+ int err;
+
+ err = pthread_mutexattr_init (&attr);
+ if (err)
+ return err;
+
+ pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_ERRORCHECK);
+ pthread_mutexattr_setprotocol (&attr, PTHREAD_PRIO_PROTECT);
+ err = pthread_mutexattr_setprioceiling (&attr, prioceiling);
+ if (err)
+ return err;
+
+ return pthread_mutex_init (mutex, &attr);
+}
+
+int fosa_mutex_destroy(fosa_mutex_t *mutex)
+{
+ return pthread_mutex_destroy (mutex);
+}
+
int fosa_mutex_set_prioceiling
- (frsh_mutex_t *mutex, int new_ceiling, int *old_ceiling);
-int fosa_mutex_get_prioceiling(const frsh_mutex_t *mutex, int *ceiling);
-int fosa_mutex_lock(frsh_mutex_t *mutex);
-int fosa_mutex_trylock(frsh_mutex_t *mutex);
-int fosa_mutex_unlock(frsh_mutex_t *mutex);
+ (fosa_mutex_t *mutex, int new_ceiling, int *old_ceiling)
+{
+ return pthread_mutex_setprioceiling (mutex, new_ceiling, old_ceiling);
+}
+
+int fosa_mutex_get_prioceiling(const fosa_mutex_t *mutex, int *ceiling)
+{
+ return pthread_mutex_getprioceiling (mutex, ceiling);
+}
+
+int fosa_mutex_lock(fosa_mutex_t *mutex)
+{
+ return pthread_mutex_lock (mutex);
+}
+
+int fosa_mutex_trylock(fosa_mutex_t *mutex)
+{
+ return pthread_mutex_trylock (mutex);
+}
+
+int fosa_mutex_unlock(fosa_mutex_t *mutex)
+{
+ return pthread_mutex_unlock (mutex);
+}
/**********************
* Condition variables
*********************/
-int fosa_cond_init(fosa_cond_t *cond);
-int fosa_cond_destroy(fosa_cond_t *cond);
-int fosa_cond_signal(fosa_cond_t *cond);
-int fosa_cond_broadcast(fosa_cond_t *cond);
-int fosa_cond_wait(fosa_cond_t *cond, frsh_mutex_t *mutex);
-int fosa_cond_timedwait(fosa_cond_t *cond, frsh_mutex_t *mutex,
- const struct timespec *abstime);
+int fosa_cond_init(fosa_cond_t *cond)
+{
+ pthread_condattr_t attr;
+ int err;
+
+ err = pthread_condattr_init (&attr);
+ if (err)
+ return err;
+
+ return pthread_cond_init (cond, NULL);
+}
+
+int fosa_cond_destroy(fosa_cond_t *cond)
+{
+ return pthread_cond_destroy (cond);
+}
+
+int fosa_cond_signal(fosa_cond_t *cond)
+{
+ return pthread_cond_signal (cond);
+}
+
+int fosa_cond_broadcast(fosa_cond_t *cond)
+{
+ return pthread_cond_broadcast (cond);
+}
+
+int fosa_cond_wait(fosa_cond_t *cond, fosa_mutex_t *mutex)
+{
+ return pthread_cond_wait (cond, mutex);
+}
+
+int fosa_cond_timedwait (fosa_cond_t *cond, fosa_mutex_t *mutex,
+ const fosa_abs_time_t *abstime)
+{
+ int err;
+ struct timespec tout = fosa_abs_time_to_timespec (*abstime);
+
+ err = pthread_cond_timedwait (cond, mutex, &tout);
+ if (err == ETIMEDOUT)
+ return FOSA_ETIMEDOUT;
+
+ if (err)
+ return FOSA_EINVAL;
+
+ return 0;
+}
projects / frescor / fosa.git / blobdiff