/*
* Collect the exit status of the child process
*/
static int
ni_process_reap(ni_process_t *pi)
{
int rv;
if (pi->pid == 0) {
ni_error("%s: child already reaped", __func__);
return 0;
}
rv = waitpid(pi->pid, &pi->status, WNOHANG);
if (rv == 0) {
/* This is an ugly workaround. Sometimes, we seem to get a hangup on the socket even
* though the script (provably) still has its end of the socket pair open for writing. */
ni_error("%s: process %u has not exited yet; now doing a blocking waitpid()", __func__, pi->pid);
rv = waitpid(pi->pid, &pi->status, 0);
}
if (rv < 0) {
ni_error("%s: waitpid returns error (%m)", __func__);
return -1;
}
if (WIFEXITED(pi->status))
ni_debug_extension("subprocess %d (%s) exited with status %d",
pi->pid, pi->process->command,
WEXITSTATUS(pi->status));
else if (WIFSIGNALED(pi->status))
ni_debug_extension("subprocess %d (%s) died with signal %d%s",
pi->pid, pi->process->command,
WTERMSIG(pi->status),
WCOREDUMP(pi->status)? " (core dumped)" : "");
else
ni_debug_extension("subprocess %d (%s) transcended into nirvana",
pi->pid, pi->process->command);
pi->pid = 0;
if (pi->notify_callback)
pi->notify_callback(pi);
return 0;
}
static int
__ni_process_run_info(ni_process_t *pi)
{
int rv;
if ((rv = ni_process_exit_status(pi)) != NI_PROCESS_FAILURE) {
ni_debug_extension("subprocess %d (%s) exited with status %d",
pi->pid, pi->process->command, rv);
return rv;
} else
if ((rv = ni_process_signaled(pi)) != NI_PROCESS_FAILURE) {
ni_debug_extension("subprocess %d (%s) died with signal %d%s",
pi->pid, pi->process->command, rv,
ni_process_core_dumped(pi) ? " (core dumped)" : "");
return NI_PROCESS_TERMSIG;
} else {
ni_debug_extension("subprocess %d (%s) transcended into nirvana",
pi->pid, pi->process->command);
return NI_PROCESS_UNKNOWN;
}
}
