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: 2014/02/07
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6 | // filename: ConditionVariable_impl.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 condition variable
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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 "ConditionVariable_impl.h"
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19 | #include "ConditionVariable.h"
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20 | #include "Mutex_impl.h"
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21 | #include <string.h>
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22 |
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23 | using std::string;
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24 | using namespace flair::core;
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25 |
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26 | ConditionVariable_impl::ConditionVariable_impl(ConditionVariable *self) {
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27 | this->self = self;
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28 | int status;
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29 |
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30 | #ifdef __XENO__
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31 | status = rt_cond_create(&m_ResumeCond, NULL);
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32 | #else
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33 | status = pthread_cond_init(&m_ResumeCond, 0);
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34 | #endif
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35 | if (status != 0) {
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36 | char errorMsg[256];
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37 | self->Err("error creating condition variable (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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38 | }
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39 | }
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40 |
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41 | ConditionVariable_impl::~ConditionVariable_impl() {
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42 | int status;
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43 |
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44 | #ifdef __XENO__
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45 | status = rt_cond_delete(&m_ResumeCond);
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46 | #else
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47 | status = pthread_cond_destroy(&m_ResumeCond);
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48 | #endif
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49 | if (status != 0) {
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50 | char errorMsg[256];
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51 | self->Err("error destroying condition variable (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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52 | }
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53 | }
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54 |
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55 | void ConditionVariable_impl::CondWait(void) {
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56 | int status;
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57 | #ifdef __XENO__
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58 | status =
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59 | rt_cond_wait(&m_ResumeCond, &self->Mutex::pimpl_->mutex, TM_INFINITE);
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60 | #else
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61 | status = pthread_cond_wait(&m_ResumeCond, &self->Mutex::pimpl_->mutex);
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62 | #endif
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63 | if (status != 0) {
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64 | char errorMsg[256];
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65 | self->Err("error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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66 | }
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67 | }
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68 |
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69 | bool ConditionVariable_impl::CondWaitUntil(Time date) {
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70 | int status;
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71 | #ifdef __XENO__
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72 | status = rt_cond_wait_until(&m_ResumeCond, &self->Mutex::pimpl_->mutex, date);
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73 | #else
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74 | struct timespec restrict;
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75 | restrict.tv_sec = date / 1000000000;
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76 | restrict.tv_nsec = date % 1000000000;
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77 | status = pthread_cond_timedwait(&m_ResumeCond, &self->Mutex::pimpl_->mutex,
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78 | &restrict);
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79 | #endif
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80 | if (status == 0)
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81 | return true;
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82 | if (status != ETIMEDOUT) {
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83 | char errorMsg[256];
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84 | self->Err("error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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85 | }
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86 | return false;
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87 | }
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88 |
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89 | void ConditionVariable_impl::CondSignal(void) {
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90 | int status;
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91 | #ifdef __XENO__
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92 | status = rt_cond_signal(&m_ResumeCond);
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93 | #else
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94 | status = pthread_cond_signal(&m_ResumeCond);
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95 | #endif
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96 | if (status != 0) {
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97 | char errorMsg[256];
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98 | self->Err("error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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99 | }
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100 | }
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