86 lines
3.1 KiB
C++
86 lines
3.1 KiB
C++
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/*
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* Copyright (c) 2012, Code Aurora Forum. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Code Aurora Forum, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "IdleTimer.h"
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TimerHandler IdleTimer::mHandler = NULL;
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int IdleTimer::create(TimerHandler reg_handler, void* user_data) {
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/* store registerd handler */
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mHandler = reg_handler;
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mSAction.sa_flags = SA_SIGINFO;
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mSAction.sa_sigaction = (TimerFP)(&IdleTimer::timer_cb);
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sigemptyset(&mSAction.sa_mask);
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if (sigaction(SIGRTMIN, &mSAction, NULL) == -1) {
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LOGE("%s: IdleTimer::sigaction failed!!", __FUNCTION__);
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return -1;
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}
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/* start the timer */
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mSEvent.sigev_notify = SIGEV_SIGNAL;
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mSEvent.sigev_signo = SIGRTMIN;
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mSEvent.sigev_value.sival_ptr = user_data;
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if (timer_create(CLOCK_REALTIME, &mSEvent, &mID) == -1) {
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LOGE("%s: IdleTimer::timer_create failed!!", __FUNCTION__);
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return -1;
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}
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return 0;
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}
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int IdleTimer::reset() {
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/* clear signal mask */
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sigemptyset(&mSAction.sa_mask);
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if (sigaction(SIGRTMIN, &mSAction, NULL) == -1) {
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LOGE("%s: IdleTimer::sigaction failed!!", __FUNCTION__);
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return -1;
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}
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/* rearm timer */
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if (timer_settime(mID, 0, &mSpec, NULL) == -1) {
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LOGE("%s: IdleTimer::timer_settime failed!!",__FUNCTION__);
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return -1;
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}
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return 0;
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}
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void IdleTimer::setFreq(unsigned long freq_msecs) {
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mSpec.it_value.tv_sec = freq_msecs / 1000;
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mSpec.it_value.tv_nsec = 0;
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mSpec.it_interval.tv_sec = mSpec.it_value.tv_sec;
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mSpec.it_interval.tv_nsec = mSpec.it_value.tv_nsec;
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}
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void IdleTimer::timer_cb(int sig, siginfo_t* si, void* uc) {
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mHandler((void*)si->si_value.sival_ptr);
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signal(sig, SIG_IGN);
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}
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