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Re-indent code for fork_monitor

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Znort 987 2011-08-15 12:06:23 +02:00
parent 39bdec8bbe
commit 4e3f38d047
1 changed files with 61 additions and 60 deletions
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121
main.c
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@ -4295,72 +4295,73 @@ out:
return ret;
}
#if !defined(WIN32)
static void fork_monitor()
{
// Make a pipe: [readFD, writeFD]
int pfd[2];
int r = pipe(pfd);
if (r<0) {
perror("pipe - failed to create pipe for --monitor");
exit(1);
}
// Make stderr write end of pipe
fflush(stderr);
r = dup2(pfd[1], 2);
if (r<0) {
perror("dup2 - failed to alias stderr to write end of pipe for --monitor");
exit(1);
}
r = close(pfd[1]);
if (r<0) {
perror("close - failed to close write end of pipe for --monitor");
exit(1);
}
// Don't allow a dying monitor to kill the main process
sighandler_t sr = signal(SIGPIPE, SIG_IGN);
if (SIG_ERR==sr) {
perror("signal - failed to edit signal mask for --monitor");
exit(1);
}
// Fork a child process
r = fork();
if (r<0) {
perror("fork - failed to fork child process for --monitor");
exit(1);
}
// In child, launch command
if (0==r) {
// Make stdin read end of pipe
r = dup2(pfd[0], 0);
#if defined(unix)
static void fork_monitor()
{
// Make a pipe: [readFD, writeFD]
int pfd[2];
int r = pipe(pfd);
if (r<0) {
perror("dup2 - in child, failed to alias read end of pipe to stdin for --monitor");
exit(1);
}
close(pfd[0]);
if (r<0) {
perror("close - in child, failed to close read end of pipe for --monitor");
perror("pipe - failed to create pipe for --monitor");
exit(1);
}
// Launch user specified command
execl("/bin/bash", "/bin/bash", "-c", opt_stderr_cmd, (char*)NULL);
perror("execl - in child failed to exec user specified command for --monitor");
exit(1);
}
// Make stderr write end of pipe
fflush(stderr);
r = dup2(pfd[1], 2);
if (r<0) {
perror("dup2 - failed to alias stderr to write end of pipe for --monitor");
exit(1);
}
r = close(pfd[1]);
if (r<0) {
perror("close - failed to close write end of pipe for --monitor");
exit(1);
}
// In parent, clean up unused fds
r = close(pfd[0]);
if (r<0) {
perror("close - failed to close read end of pipe for --monitor");
exit(1);
// Don't allow a dying monitor to kill the main process
sighandler_t sr0 = signal(SIGPIPE, SIG_IGN);
sighandler_t sr1 = signal(SIGPIPE, SIG_IGN);
if (SIG_ERR==sr0 || SIG_ERR==sr1) {
perror("signal - failed to edit signal mask for --monitor");
exit(1);
}
// Fork a child process
r = fork();
if (r<0) {
perror("fork - failed to fork child process for --monitor");
exit(1);
}
// Child: launch monitor command
if (0==r) {
// Make stdin read end of pipe
r = dup2(pfd[0], 0);
if (r<0) {
perror("dup2 - in child, failed to alias read end of pipe to stdin for --monitor");
exit(1);
}
close(pfd[0]);
if (r<0) {
perror("close - in child, failed to close read end of pipe for --monitor");
exit(1);
}
// Launch user specified command
execl("/bin/bash", "/bin/bash", "-c", opt_stderr_cmd, (char*)NULL);
perror("execl - in child failed to exec user specified command for --monitor");
exit(1);
}
// Parent: clean up unused fds and bail
r = close(pfd[0]);
if (r<0) {
perror("close - failed to close read end of pipe for --monitor");
exit(1);
}
}
}
#endif // !WIN32
#endif // defined(unix)
int main (int argc, char *argv[])
{