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/*
* @licence app begin@
* SPDX license identifier: MPL-2.0
*
* Copyright (C) 2015 Intel Corporation
*
* This file is part of GENIVI Project DLT - Diagnostic Log and Trace.
*
* This Source Code Form is subject to the terms of the
* Mozilla Public License (MPL), v. 2.0.
* If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/.
*
* For further information see http://www.genivi.org/.
* @licence end@
*/
/*!
* \author Stefan Vacek <stefan.vacek@intel.com> Intel Corporation
*
* \copyright Copyright © 2015 Intel Corporation. \n
* License MPL-2.0: Mozilla Public License version 2.0 http://mozilla.org/MPL/2.0/.
*
* \file dlt-test-fork-handler.c
*/
#include <unistd.h> /* for fork() */
#include "dlt.h"
/**
* @brief sample code for using at_fork-handler
*/
int main()
{
DltContext mainContext;
DLT_REGISTER_APP("PRNT", "Parent application");
DLT_REGISTER_CONTEXT(mainContext, "CTXP", "Parent context");
DLT_LOG(mainContext, DLT_LOG_WARN, DLT_STRING("First message before fork"));
usleep(200000);
pid_t pid = fork();
if (pid == 0) /* child process */
{
/* this message should not be visible */
/* DLT_LOG(mainContext, DLT_LOG_WARN, DLT_STRING("Child's first message after fork, pid: "), DLT_INT32(getpid())); */
/* unfortunately, this message does arrive, I assume because it still has (locally) valid data ... */
DLT_REGISTER_APP("CHLD", "Child application");
DLT_REGISTER_CONTEXT(mainContext, "CTXC", "Child context");
DLT_LOG(mainContext, DLT_LOG_WARN, DLT_STRING("Child's second message after fork, pid: "), DLT_INT32(getpid()));
usleep(400000);
}
else if (pid == -1) /* error in fork */
{
return -1;
}
else /* parent */
{
DLT_LOG(mainContext, DLT_LOG_WARN, DLT_STRING("Parent's first message after fork, pid: "), DLT_INT32(getpid()));
usleep(500000);
}
DLT_UNREGISTER_APP()
;
return 0;
}
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