mirror_corosync/exec/openais-instantiate.c
Hans Feldt 62bc733e2e - Error escalation improved, SU failover recovery action added
- Most runtime attributes in the inf. model calculated in runtime from
  more fundamental information. (improves consistency)
- sg_assign_si can now recalculate workloads considering existing
  assignments
- Logging improvements, similar to what is required as notification in
  AMF spec.
- CLC-CLI INSTANTIATE now exits aisexec when it fails (should later be
  sent as an NTF alarm)
- CLC-CLI CLEANUP correctly handles already terminated processes
- testamf1.c printouts removed for normal operation
- Iterator functions for SI/CSI assignments 



git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1108 fd59a12c-fef9-0310-b244-a6a79926bd2f
2006-07-07 08:04:01 +00:00

106 lines
3.2 KiB
C

/*
* Copyright (c) 2005 MontaVista Software, Inc.
*
* All rights reserved.
*
* Author: Steven Dake (sdake@mvista.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the MontaVista Software, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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.
*/
#include <stdio.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include <semaphore.h>
#include <errno.h>
#include <string.h>
struct timespec sleeptime = {
.tv_sec = 0,
.tv_nsec = 10000 /* 10 msec */
};
#ifndef xprintf
#define xprintf(...)
#endif
/*
* The method by which the status is returned from execve
* needs some performance enhancement
*/
int main (int argc, char **argv, char **envp)
{
pid_t pid;
pid_t res;
int status;
int i;
pid = fork();
if (pid == -1) {
fprintf (stderr, "openais-instantiate: could not fork process %s\n",
strerror (errno));
return (errno);
}
if (pid) {
/*
* Wait for a status code for at most 100 msec (10 * sleeptime)
* if child never returns a code, it is assumed to have been instantiated
*/
for (i = 0; i < 10; i++) {
res = waitpid (pid, &status, WNOHANG);
if (res) {
if (WEXITSTATUS(status) == 0) {
xprintf ("openais-instantiate: component instantiated\n");
return (0);
} else {
fprintf (stderr, "openais-instantiate: could not execute "
"program %s, (return code %d = %s)\n",
argv[1], WEXITSTATUS(status),
strerror (WEXITSTATUS(status)));
return (WEXITSTATUS(status));
}
}
nanosleep (&sleeptime, 0);
}
xprintf ("openais-instantiate: component instantiated\n");
return (0);
} else {
xprintf ("childs pid %d\n", getpid());
/*
* child process
*/
res = execve (argv[1], &argv[2], envp);
if (res == -1) {
return (errno);
}
}
return (0);
}