[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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[133] | 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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[2] | 39 | }
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| 40 |
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| 41 | ConditionVariable_impl::~ConditionVariable_impl() {
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[15] | 42 | int status;
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[2] | 43 |
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| 44 | #ifdef __XENO__
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[15] | 45 | status = rt_cond_delete(&m_ResumeCond);
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[2] | 46 | #else
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[15] | 47 | status = pthread_cond_destroy(&m_ResumeCond);
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[2] | 48 | #endif
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[133] | 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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[2] | 53 | }
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| 54 |
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[330] | 55 | bool ConditionVariable_impl::CondWait(Time timeout) {
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[15] | 56 | int status;
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[330] | 57 | if(timeout==TIME_INFINITE) {
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[2] | 58 | #ifdef __XENO__
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[330] | 59 | status=rt_cond_wait(&m_ResumeCond, &self->Mutex::pimpl_->mutex, TM_INFINITE);
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[2] | 60 | #else
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[330] | 61 | status=pthread_cond_wait(&m_ResumeCond, &self->Mutex::pimpl_->mutex);
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[2] | 62 | #endif
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[330] | 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 | return false;
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| 67 | }
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| 68 | return true;
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| 69 | } else {
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| 70 | return CondWaitUntil(GetTime()+timeout);
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| 71 | }
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[2] | 72 | }
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| 73 |
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| 74 | bool ConditionVariable_impl::CondWaitUntil(Time date) {
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[15] | 75 | int status;
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[2] | 76 | #ifdef __XENO__
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[15] | 77 | status = rt_cond_wait_until(&m_ResumeCond, &self->Mutex::pimpl_->mutex, date);
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[2] | 78 | #else
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[330] | 79 | struct timespec abstime;
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| 80 | abstime.tv_sec = date / 1000000000;
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| 81 | abstime.tv_nsec = date % 1000000000;
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[15] | 82 | status = pthread_cond_timedwait(&m_ResumeCond, &self->Mutex::pimpl_->mutex,
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[330] | 83 | &abstime);
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[2] | 84 | #endif
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[330] | 85 | if (status == 0) return true;
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[133] | 86 | if (status != ETIMEDOUT) {
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| 87 | char errorMsg[256];
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| 88 | self->Err("error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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| 89 | }
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[15] | 90 | return false;
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[2] | 91 | }
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| 92 |
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| 93 | void ConditionVariable_impl::CondSignal(void) {
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[15] | 94 | int status;
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[2] | 95 | #ifdef __XENO__
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[15] | 96 | status = rt_cond_signal(&m_ResumeCond);
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[2] | 97 | #else
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[15] | 98 | status = pthread_cond_signal(&m_ResumeCond);
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[2] | 99 | #endif
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[133] | 100 | if (status != 0) {
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| 101 | char errorMsg[256];
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| 102 | self->Err("error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
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| 103 | }
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[2] | 104 | }
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