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/***************************************************************************
* *
* copyright (C) 2003, 2004 by Michael Buesch *
* email: mbuesch@freenet.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License version 2 *
* as published by the Free Software Foundation. *
* *
***************************************************************************/
/***************************************************************************
* copyright (C) 2004 by Ulf Schenk
* This file is originaly based on version 1.0.1 of pwmanager
* and was modified to run on embedded devices that run microkde
*
* $Id$
**************************************************************************/
#include "spinforsignal.h"
#include "pwmexception.h"
#ifndef PWM_EMBEDDED
#include <kapp.h>
#endif
#include <time.h>
#include <pthread.h>
static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
SpinForSignal::SpinForSignal()
: QObject()
{
doSpin = false;
}
void SpinForSignal::spinSleep()
{
const struct timespec t = { 0, 100 };
nanosleep(&t, 0);
}
void SpinForSignal::_spin()
{
doSpin = true;
printDebug("spinning for signal.");
do {
kapp->processEvents();
spinSleep();
} while (doSpin);
printDebug("spinning stopped.");
}
void SpinForSignal::spin(uint32_t *u32, string *str)
{
_spin();
if (pthread_mutex_lock(&mutex)) {
printError("spin(uint32_t *u32, string *str): pthread_mutex_lock failed");
return;
}
*u32 = u32_storage;
*str = str_storage;
pthread_mutex_unlock(&mutex);
}
void SpinForSignal::u32_str_slot(uint32_t u32, const string &str)
{
if (doSpin) {
printDebug("ul_str_slot(unsigned long ul, const string &str)");
u32_storage = u32;
str_storage = str;
doSpin = false;
}
}
void SpinForSignal::cancelSpin()
{
if (pthread_mutex_lock(&mutex)) {
printError("cancelSpin(): pthread_mutex_lock failed");
return;
}
printDebug("spinning cancelled.");
u32_storage = 0;
str_storage = "";
doSpin = false;
pthread_mutex_unlock(&mutex);
}
#include "spinforsignal.moc"
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