1 // -----------------------------------------------------------------------
2 // Copyright (C) 2006 - 2007 FRESCOR consortium partners:
4 // Universidad de Cantabria, SPAIN
5 // University of York, UK
6 // Scuola Superiore Sant'Anna, ITALY
7 // Kaiserslautern University, GERMANY
8 // Univ. Politecnica Valencia, SPAIN
9 // Czech Technical University in Prague, CZECH REPUBLIC
11 // Thales Communication S.A. FRANCE
12 // Visual Tools S.A. SPAIN
13 // Rapita Systems Ltd UK
16 // See http://www.frescor.org for a link to partners' websites
18 // FRESCOR project (FP6/2005/IST/5-034026) is funded
19 // in part by the European Union Sixth Framework Programme
20 // The European Union is not liable of any use that may be
23 // This file is part of the FRSH implementation
25 // FRSH is free software; you can redistribute it and/or modify
26 // it under the terms of the GNU General Public License as published by
27 // the Free Software Foundation; either version 2, or (at your option)
30 // FRSH is distributed in the hope that it will be useful, but
31 // WITHOUT ANY WARRANTY; without even the implied warranty of
32 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
33 // General Public License for more details.
35 // You should have received a copy of the GNU General Public License
36 // distributed with FRSH; see file COPYING. If not, write to the
37 // Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
40 // As a special exception, if you include this header file into source
41 // files to be compiled, this header file does not by itself cause
42 // the resulting executable to be covered by the GNU General Public
43 // License. This exception does not however invalidate any other
44 // reasons why the executable file might be covered by the GNU General
46 // -----------------------------------------------------------------------
47 //==============================================
48 // ******** ****** ******** **********
49 // **///// /** ** **////// /** /**
50 // ** /** ** /** /** /**
51 // ******* /** ** /********* /**********
52 // **//// /** ** ////////** /**//////**
53 // ** /** ** /** /** /**
54 // ** /** ** ******** /** /**
55 // // /******/ //////// // //
57 // FOSA(Frescor Operating System Adaptation layer)
58 //================================================
60 #include <fosa_mutexes_and_condvars.h>
61 #include <fosa_time.h>
63 /*******************************************************
64 * Mutexes with priority ceiling
65 ******************************************************/
66 int fosa_mutex_init(fosa_mutex_t *mutex, int prioceiling)
68 pthread_mutexattr_t attr;
71 err = pthread_mutexattr_init (&attr);
75 pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_ERRORCHECK);
76 pthread_mutexattr_setprotocol (&attr, PTHREAD_PRIO_PROTECT);
77 err = pthread_mutexattr_setprioceiling (&attr, prioceiling);
81 return pthread_mutex_init (mutex, &attr);
84 int fosa_mutex_destroy(fosa_mutex_t *mutex)
86 return pthread_mutex_destroy (mutex);
89 int fosa_mutex_set_prioceiling
90 (fosa_mutex_t *mutex, int new_ceiling, int *old_ceiling)
92 return pthread_mutex_setprioceiling (mutex, new_ceiling, old_ceiling);
95 int fosa_mutex_get_prioceiling(const fosa_mutex_t *mutex, int *ceiling)
97 return pthread_mutex_getprioceiling (mutex, ceiling);
100 int fosa_mutex_lock(fosa_mutex_t *mutex)
102 return pthread_mutex_lock (mutex);
105 int fosa_mutex_trylock(fosa_mutex_t *mutex)
107 return pthread_mutex_trylock (mutex);
110 int fosa_mutex_unlock(fosa_mutex_t *mutex)
112 return pthread_mutex_unlock (mutex);
116 /**********************
117 * Condition variables
118 *********************/
119 int fosa_cond_init(fosa_cond_t *cond)
121 pthread_condattr_t attr;
124 err = pthread_condattr_init (&attr);
128 return pthread_cond_init (cond, NULL);
131 int fosa_cond_destroy(fosa_cond_t *cond)
133 return pthread_cond_destroy (cond);
136 int fosa_cond_signal(fosa_cond_t *cond)
138 return pthread_cond_signal (cond);
141 int fosa_cond_broadcast(fosa_cond_t *cond)
143 return pthread_cond_broadcast (cond);
146 int fosa_cond_wait(fosa_cond_t *cond, fosa_mutex_t *mutex)
148 return pthread_cond_wait (cond, mutex);
151 int fosa_cond_timedwait (fosa_cond_t *cond, fosa_mutex_t *mutex,
152 const fosa_abs_time_t *abstime)
155 struct timespec tout = fosa_abs_time_to_timespec (*abstime);
157 err = pthread_cond_timedwait (cond, mutex, &tout);
158 if (err == ETIMEDOUT)
159 return FOSA_ETIMEDOUT;