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