OZ++ Sample: EventDescriptor |
/******************************************************************************
*
* 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.
*
*
* EventDescriptor.cpp
*
*****************************************************************************/
#include <oz++/EventDescriptor.h>
#include <oz++/Thread.h>
#include <oz++/SignalSet.h>
#include <oz++/SignalAction.h>
//
int main(int argc, char* argv[])
{
try {
EventDescriptor reader(0, 0);
int fd = reader.getFD();
int rc = fork();
if (rc == ERROR) {
throw IException("Failed to fork: %s", ERROR_STRING);
}
if (rc == 0) {
//Child process
EventDescriptor writer(fd);
const uint64_t value = 123456789;
const int count = 10;
for (uint64_t i = value; i< (value+count); i++) {
sleep(1);
printf("Child process write %lu\n", i);
writer.write(i);
}
writer.close();
} else {
//Parenti process
while (true) {
try {
uint64_t value;
reader.read(value);
printf("Parent proccess read %lu\n", value);
} catch (Exception& ex) {
caught(ex);
}
}
}
} catch (Exception& ex) {
caught(ex);
}
return 0;
}