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tweaks

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This commit is contained in:
David Rose 2002-09-05 16:46:17 +00:00
parent bb6fd11fab
commit 031feceb39
1 changed files with 13 additions and 11 deletions
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24
direct/src/autorestart/autorestart.c
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@ -56,12 +56,9 @@ exec_process() {
execvp(params[0], params);
fprintf(stderr, "Cannot exec %s: %s\n", params[0], strerror(errno));
/* Kill ourselves instead of exiting, to indicate the watching
process should stop. */
kill(getpid(), SIGTERM);
/* Shouldn't get here. */
exit(1);
/* Exit with a status of 0, to indicate to the parent process that
we should stop. */
exit(0);
}
int
@ -103,9 +100,10 @@ spawn_process() {
return (signal != SIGTERM && signal != SIGKILL);
} else {
fprintf(stderr, "\nprocess exited with error code %d.\n\n", WEXITSTATUS(status));
/* Normal exit is always a reason to respawn. */
return 1;
int exit_status = WEXITSTATUS(status);
fprintf(stderr, "\nprocess exited with status %d.\n\n", WEXITSTATUS(status));
/* Normal exit is a reason to respawn if the status indicates failure. */
return (exit_status != 0);
}
}
@ -205,7 +203,7 @@ double_fork() {
if (WIFSIGNALED(status)) {
fprintf(stderr, "child caught signal %d unexpectedly.\n", WTERMSIG(status));
} else {
fprintf(stderr, "child exited with error code %d.\n", WEXITSTATUS(status));
fprintf(stderr, "child exited with status %d.\n", WEXITSTATUS(status));
}
exit(1);
}
@ -224,7 +222,11 @@ help() {
fprintf(stderr,
"This program is used to run a program as a background task and\n"
"automatically restart it should it terminate for any reason other\n"
"than explicit user kill.\n\n"
"than normal exit or explicit user kill.\n\n"
"If the program exits with a status of 0, indicating successful\n"
"completion, it is not restarted.\n\n"
"If the program is terminated via a TERM or KILL signal (e.g. via\n"
"kill [pid] or kill -i [pid]), it is assumed the user meant for the\n"
"process to stop, and it is not restarted.\n\n");