/******************************************************************************
*
* Copyright (c) 2015 TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer.
*
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* SignalQueue.cpp
*
*****************************************************************************/
#include <oz++/CharString.h>
#include <oz++/Thread.h>
#include <oz++/Signal.h>
#include <oz++/SignalQueue.h>
#include <oz++/SignalSet.h>
namespace OZ {
class SignalSender: public Thread {
private:
bool looping;
SignalQueue queue;
public:
SignalSender(int signo)
:Thread(),
looping(true),
queue(signo)
{
}
//Thread main procedure which can be called from Thread::start method.
virtual void run()
{
int i = 0;
while (looping) {
sleep(1);
char buffer[128];
sprintf(buffer, "Hello world %d", i++);
CharString* msg = new CharString(buffer);
printf("SignalSender::run(); post \"%s\"\n", buffer);
queue.post(msg);
}
}
};
class SignalReceiver :public Thread {
private:
bool looping;
Signal signal;
int signo;
public:
SignalReceiver(int signo)
:Thread(),
looping(true),
signal(signo),
signo(signo)
{
}
//Thread main procedure which can be called from Thread::start method.
virtual void run()
{
while (looping) {
try {
siginfo_t siginfo;
signal.wait(siginfo);
int sno = siginfo.si_signo;
const char* name = Signal::toString(sno);
if (sno == signo) {
CharString* msg = (CharString*)siginfo.si_value.sival_ptr;
if (msg) {
printf("SignalReceiver::run(); Got a signal %d %s value = \"%s\"\n",
sno, name, (const char*)(*msg));
delete msg;
}
} else {
printf("Unexpcted signal %d %s\n", sno, name);
}
} catch (Exception& ex) {
caught(ex);
}
}
}
};
}
//
int main(int argc, char* argv[])
{
try {
int signo = SIGUSR1;
SignalSet set;
set.add(signo);
Thread::block(set);
SignalSender sender(signo);
sender.start();
SignalReceiver receiver(signo);
receiver.start();
receiver.wait();
sender.wait();
} catch (Exception& ex) {
caught(ex);
}
return 0;
}