source: flair-src/trunk/lib/FlairCore/src/ConditionVariable_impl.cpp@ 330

Last change on this file since 330 was 330, checked in by Sanahuja Guillaume, 3 years ago

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File size: 2.7 KB
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1// %flair:license{
2// This file is part of the Flair framework distributed under the
3// CECILL-C License, Version 1.0.
4// %flair:license}
5// created: 2014/02/07
6// filename: ConditionVariable_impl.cpp
7//
8// author: Guillaume Sanahuja
9// Copyright Heudiasyc UMR UTC/CNRS 7253
10//
11// version: $Id: $
12//
13// purpose: Class defining a condition variable
14//
15//
16/*********************************************************************/
17
18#include "ConditionVariable_impl.h"
19#include "ConditionVariable.h"
20#include "Mutex_impl.h"
21#include <string.h>
22
23using std::string;
24using namespace flair::core;
25
26ConditionVariable_impl::ConditionVariable_impl(ConditionVariable *self) {
27 this->self = self;
28 int status;
29
30#ifdef __XENO__
31 status = rt_cond_create(&m_ResumeCond, NULL);
32#else
33 status = pthread_cond_init(&m_ResumeCond, 0);
34#endif
35 if (status != 0) {
36 char errorMsg[256];
37 self->Err("error creating condition variable (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
38 }
39}
40
41ConditionVariable_impl::~ConditionVariable_impl() {
42 int status;
43
44#ifdef __XENO__
45 status = rt_cond_delete(&m_ResumeCond);
46#else
47 status = pthread_cond_destroy(&m_ResumeCond);
48#endif
49 if (status != 0) {
50 char errorMsg[256];
51 self->Err("error destroying condition variable (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
52 }
53}
54
55bool ConditionVariable_impl::CondWait(Time timeout) {
56 int status;
57 if(timeout==TIME_INFINITE) {
58#ifdef __XENO__
59 status=rt_cond_wait(&m_ResumeCond, &self->Mutex::pimpl_->mutex, TM_INFINITE);
60#else
61 status=pthread_cond_wait(&m_ResumeCond, &self->Mutex::pimpl_->mutex);
62#endif
63 if(status != 0) {
64 char errorMsg[256];
65 self->Err("error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
66 return false;
67 }
68 return true;
69 } else {
70 return CondWaitUntil(GetTime()+timeout);
71 }
72}
73
74bool ConditionVariable_impl::CondWaitUntil(Time date) {
75 int status;
76#ifdef __XENO__
77 status = rt_cond_wait_until(&m_ResumeCond, &self->Mutex::pimpl_->mutex, date);
78#else
79 struct timespec abstime;
80 abstime.tv_sec = date / 1000000000;
81 abstime.tv_nsec = date % 1000000000;
82 status = pthread_cond_timedwait(&m_ResumeCond, &self->Mutex::pimpl_->mutex,
83 &abstime);
84#endif
85 if (status == 0) return true;
86 if (status != ETIMEDOUT) {
87 char errorMsg[256];
88 self->Err("error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
89 }
90 return false;
91}
92
93void ConditionVariable_impl::CondSignal(void) {
94 int status;
95#ifdef __XENO__
96 status = rt_cond_signal(&m_ResumeCond);
97#else
98 status = pthread_cond_signal(&m_ResumeCond);
99#endif
100 if (status != 0) {
101 char errorMsg[256];
102 self->Err("error (%s)\n", strerror_r(-status, errorMsg, sizeof(errorMsg)));
103 }
104}
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