| [2] | 1 | // %flair:license{
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| [15] | 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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| [2] | 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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| [15] | 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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| [2] | 29 |
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| 30 | #ifdef __XENO__
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| [15] | 31 | status = rt_cond_create(&m_ResumeCond, NULL);
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| [2] | 32 | #else
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| [15] | 33 | status = pthread_cond_init(&m_ResumeCond, 0);
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| [2] | 34 | #endif
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| [15] | 35 | if (status != 0)
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| 36 | self->Err("error creating condition variable (%s)\n", strerror(-status));
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| [2] | 37 | }
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| 38 |
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| 39 | ConditionVariable_impl::~ConditionVariable_impl() {
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| [15] | 40 | int status;
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| [2] | 41 |
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| 42 | #ifdef __XENO__
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| [15] | 43 | status = rt_cond_delete(&m_ResumeCond);
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| [2] | 44 | #else
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| [15] | 45 | status = pthread_cond_destroy(&m_ResumeCond);
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| [2] | 46 | #endif
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| [15] | 47 | if (status != 0)
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| 48 | self->Err("error destroying condition variable (%s)\n", strerror(-status));
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| [2] | 49 | }
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| 50 |
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| 51 | void ConditionVariable_impl::CondWait(void) {
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| [15] | 52 | int status;
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| [2] | 53 | #ifdef __XENO__
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| [15] | 54 | status =
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| 55 | rt_cond_wait(&m_ResumeCond, &self->Mutex::pimpl_->mutex, TM_INFINITE);
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| [2] | 56 | #else
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| [15] | 57 | status = pthread_cond_wait(&m_ResumeCond, &self->Mutex::pimpl_->mutex);
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| [2] | 58 | #endif
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| [15] | 59 | if (status != 0)
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| 60 | self->Err("error (%s)\n", strerror(-status));
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| [2] | 61 | }
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| 62 |
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| 63 | bool ConditionVariable_impl::CondWaitUntil(Time date) {
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| [15] | 64 | int status;
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| [2] | 65 | #ifdef __XENO__
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| [15] | 66 | status = rt_cond_wait_until(&m_ResumeCond, &self->Mutex::pimpl_->mutex, date);
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| [2] | 67 | #else
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| [15] | 68 | struct timespec restrict;
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| 69 | restrict.tv_sec = date / 1000000000;
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| 70 | restrict.tv_nsec = date % 1000000000;
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| 71 | status = pthread_cond_timedwait(&m_ResumeCond, &self->Mutex::pimpl_->mutex,
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| 72 | &restrict);
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| [2] | 73 | #endif
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| [15] | 74 | if (status == 0)
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| 75 | return true;
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| 76 | if (status != ETIMEDOUT)
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| 77 | self->Err("error (%s)\n", strerror(-status));
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| 78 | return false;
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| [2] | 79 | }
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| 80 |
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| 81 | void ConditionVariable_impl::CondSignal(void) {
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| [15] | 82 | int status;
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| [2] | 83 | #ifdef __XENO__
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| [15] | 84 | status = rt_cond_signal(&m_ResumeCond);
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| [2] | 85 | #else
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| [15] | 86 | status = pthread_cond_signal(&m_ResumeCond);
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| [2] | 87 | #endif
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| [15] | 88 | if (status != 0)
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| 89 | self->Err("error (%s)\n", strerror(-status));
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| [2] | 90 | }
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