74 lines
1.8 KiB
C++
74 lines
1.8 KiB
C++
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/* Copyright (C) 2013 Interactive Brokers LLC. All rights reserved. This code is subject to the terms
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* and conditions of the IB API Non-Commercial License or the IB API Commercial License, as applicable. */
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#include "StdAfx.h"
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#include "EReaderOSSignal.h"
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#define MS_IN_SEC 1000
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EReaderOSSignal::EReaderOSSignal(unsigned long waitTimeout) throw (std::runtime_error)
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{
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bool ok = false;
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m_waitTimeout = waitTimeout;
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#if defined(IB_POSIX)
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int rc1 = pthread_mutex_init(&m_mutex, NULL);
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int rc2 = pthread_cond_init(&m_evMsgs, NULL);
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ok = rc1 == 0 && rc2 == 0;
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#elif defined(IB_WIN32)
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m_evMsgs = CreateEvent(0, false, false, 0);
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ok = (NULL != m_evMsgs);
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#else
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# error "Not implemented on this platform"
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#endif
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if (!ok)
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throw std::runtime_error("Failed to create event");
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}
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EReaderOSSignal::~EReaderOSSignal(void)
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{
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#if defined(IB_POSIX)
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pthread_cond_destroy(&m_evMsgs);
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pthread_mutex_destroy(&m_mutex);
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#elif defined(IB_WIN32)
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CloseHandle(m_evMsgs);
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#else
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# error "Not implemented on this platform"
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#endif
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}
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void EReaderOSSignal::issueSignal() {
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#if defined(IB_POSIX)
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pthread_mutex_lock(&m_mutex);
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pthread_cond_signal(&m_evMsgs);
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pthread_mutex_unlock(&m_mutex);
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#elif defined(IB_WIN32)
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SetEvent(m_evMsgs);
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#else
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# error "Not implemented on this platform"
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#endif
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}
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void EReaderOSSignal::waitForSignal() {
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#if defined(IB_POSIX)
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pthread_mutex_lock(&m_mutex);
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if ( m_waitTimeout == INFINITE ) {
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pthread_cond_wait(&m_evMsgs, &m_mutex);
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}
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else {
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struct timespec ts;
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ts.tv_sec = m_waitTimeout/MS_IN_SEC;
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ts.tv_nsec = (m_waitTimeout%MS_IN_SEC)*1000/*us/ms*/*1000/*ns/us*/;
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pthread_cond_timedwait(&m_evMsgs, &m_mutex, &ts);
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}
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pthread_mutex_unlock(&m_mutex);
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#elif defined(IB_WIN32)
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WaitForSingleObject(m_evMsgs, m_waitTimeout);
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#else
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# error "Not implemented on this platform"
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#endif
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}
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