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 | this->self = self;
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27 | #ifdef __XENO__
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28 | int status = rt_mutex_create(&mutex, NULL);
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29 | if (status != 0) {
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30 | char errorMsg[256];
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31 | self->Err("rt_mutex_create error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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32 | }
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33 | #else
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34 | // flag_locked=false;//revoir l'implementation nrt du is_locked
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35 | pthread_mutexattr_t attr;
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36 | if (pthread_mutexattr_init(&attr) != 0) {
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37 | self->Err("pthread_mutexattr_init error\n");
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38 | }
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39 | if (pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE) != 0) {
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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 | self->Err("pthread_mutex_init error\n");
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44 | }
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45 | if (pthread_mutexattr_destroy(&attr) != 0) {
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46 | self->Err("pthread_mutexattr_destroy error\n");
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47 | }
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48 | #endif
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49 | }
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50 |
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51 | Mutex_impl::~Mutex_impl() {
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52 | int status;
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53 |
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54 | #ifdef __XENO__
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55 | status = rt_mutex_delete(&mutex);
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56 | #else
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57 | status = pthread_mutex_destroy(&mutex);
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58 | #endif
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59 | if (status != 0) {
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60 | char errorMsg[256];
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61 | self->Err("error destroying mutex (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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62 | }
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63 | }
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64 |
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65 | void Mutex_impl::GetMutex(void) {
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66 | int status;
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67 |
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68 | #ifdef __XENO__
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69 | status = rt_mutex_acquire(&mutex, TM_INFINITE);
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70 | #else
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71 | // flag_locked=true;
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72 | status = pthread_mutex_lock(&mutex);
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73 | #endif
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74 | if (status != 0) {
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75 | char errorMsg[256];
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76 | self->Err("error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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77 | }
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78 | }
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79 |
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80 | void Mutex_impl::ReleaseMutex(void) {
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81 | int status;
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82 |
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83 | #ifdef __XENO__
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84 | status = rt_mutex_release(&mutex);
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85 | #else
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86 | status = pthread_mutex_unlock(&mutex);
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87 | // flag_locked=false;
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88 | #endif
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89 | if (status != 0) {
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90 | char errorMsg[256];
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91 | self->Err("error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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92 | }
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93 | }
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94 |
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95 | /*
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96 | bool Mutex_impl::IsLocked(void)
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97 | {
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98 | #ifdef __XENO__
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99 | RT_MUTEX_INFO info;
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100 | int status=rt_mutex_inquire(&mutex_rt,&info);
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101 | if(status!=0) mutex->Err("erreur rt_mutex_inquire (%s)\n",strerror_r(-status, errorMsg, sizeof(errorMsg)));
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102 | if(info.locked>0) return true;
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103 | return false;
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104 | #else
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105 | return flag_locked;
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106 | #endif
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107 | }
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108 | */
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