| 1 | // %flair:license{
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| 2 | // This file is part of the Flair framework distributed under the
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| 3 | // CECILL-C License, Version 1.0.
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| 4 | // %flair:license}
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| 5 | // created: 2012/03/14
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| 6 | // filename: Mutex.cpp
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| 7 | //
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| 8 | // author: Guillaume Sanahuja
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| 9 | // Copyright Heudiasyc UMR UTC/CNRS 7253
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| 10 | //
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| 11 | // version: $Id: $
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| 12 | //
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| 13 | // purpose: Class defining a mutex
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| 14 | //
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| 15 | //
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| 16 | /*********************************************************************/
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| 17 |
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| 18 | #include "Mutex_impl.h"
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| 19 | #include "Mutex.h"
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| 20 | #include <string.h>
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| 21 |
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| 22 | using std::string;
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| 23 | using namespace flair::core;
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| 24 |
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| 25 | Mutex_impl::Mutex_impl(Mutex *self)
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| 26 | {
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| 27 | this->self=self;
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| 28 | #ifdef __XENO__
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| 29 | int status=rt_mutex_create(&mutex,NULL);
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| 30 | if(status!=0) self->Err("rt_mutex_create error (%s)\n",strerror(-status));
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| 31 | #else
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| 32 | //flag_locked=false;//revoir l'implementation nrt du is_locked
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| 33 | pthread_mutexattr_t attr;
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| 34 | if(pthread_mutexattr_init(&attr)!=0)
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| 35 | {
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| 36 | self->Err("pthread_mutexattr_init error\n");
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| 37 | }
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| 38 | if(pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE) != 0)
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| 39 | {
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| 40 | self->Err("pthread_mutexattr_settype error\n");
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| 41 | }
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| 42 | if(pthread_mutex_init(&mutex, &attr)!=0)
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| 43 | {
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| 44 | self->Err("pthread_mutex_init error\n");
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| 45 | }
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| 46 | if(pthread_mutexattr_destroy(&attr)!=0)
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| 47 | {
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| 48 | self->Err("pthread_mutexattr_destroy error\n");
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| 49 | }
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| 50 | #endif
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| 51 | }
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| 52 |
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| 53 | Mutex_impl::~Mutex_impl()
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| 54 | {
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| 55 | int status;
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| 56 | #ifdef __XENO__
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| 57 | status=rt_mutex_delete(&mutex);
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| 58 | #else
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| 59 | status=pthread_mutex_destroy(&mutex);
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| 60 | #endif
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| 61 | if(status!=0) self->Err("error destroying mutex (%s)\n",strerror(-status));
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| 62 | }
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| 63 |
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| 64 | void Mutex_impl::GetMutex(void)
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| 65 | {
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| 66 | int status;
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| 67 | #ifdef __XENO__
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| 68 | status=rt_mutex_acquire(&mutex,TM_INFINITE);
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| 69 | #else
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| 70 | //flag_locked=true;
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| 71 | status=pthread_mutex_lock(&mutex);
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| 72 | #endif
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| 73 | if(status!=0) self->Err("error (%s)\n",strerror(-status));
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| 74 | }
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| 75 |
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| 76 | void Mutex_impl::ReleaseMutex(void)
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| 77 | {
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| 78 | int status;
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| 79 | #ifdef __XENO__
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| 80 | status=rt_mutex_release(&mutex);
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| 81 | #else
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| 82 | status=pthread_mutex_unlock(&mutex);
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| 83 | //flag_locked=false;
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| 84 | #endif
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| 85 | if(status!=0) self->Err("error (%s)\n",strerror(-status));
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| 86 | }
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| 87 |
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| 88 | /*
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| 89 | bool Mutex_impl::IsLocked(void)
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| 90 | {
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| 91 | #ifdef __XENO__
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| 92 | RT_MUTEX_INFO info;
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| 93 | int status=rt_mutex_inquire(&mutex_rt,&info);
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| 94 | if(status!=0) mutex->Err("erreur rt_mutex_inquire (%s)\n",strerror(-status));
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| 95 | if(info.locked>0) return true;
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| 96 | return false;
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| 97 | #else
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| 98 | return flag_locked;
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| 99 | #endif
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| 100 | }
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| 101 | */
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