void uwsgi_daemons_spawn_all() {
struct uwsgi_daemon *ud = uwsgi.daemons;
while (ud) {
if (!ud->registered) {
#ifdef UWSGI_SSL
if (ud->legion && !uwsgi_legion_i_am_the_lord(ud->legion)) {
// part of legion, register but don't spawn it yet
if (ud->pidfile) {
ud->pid = uwsgi_check_pidfile(ud->pidfile);
if (ud->pid > 0)
uwsgi_log("[uwsgi-daemons] found valid/active pidfile for \"%s\" (pid: %d)\n", ud->command, (int) ud->pid);
}
ud->registered = 1;
ud = ud->next;
continue;
}
#endif
ud->registered = 1;
if (ud->pidfile) {
int checked_pid = uwsgi_check_pidfile(ud->pidfile);
if (checked_pid <= 0) {
uwsgi_spawn_daemon(ud);
}
else {
ud->pid = checked_pid;
uwsgi_log("[uwsgi-daemons] found valid/active pidfile for \"%s\" (pid: %d)\n", ud->command, (int) ud->pid);
}
}
else {
uwsgi_spawn_daemon(ud);
}
}
ud = ud->next;
}
}
// this function is called when a dumb daemon dies and we want to respawn it
int uwsgi_daemon_check_pid_reload(pid_t diedpid) {
struct uwsgi_daemon *ud = uwsgi.daemons;
while (ud) {
if (ud->pid == diedpid && !ud->pidfile) {
uwsgi_spawn_daemon(ud);
return 1;
}
ud = ud->next;
}
return 0;
}
void uwsgi_daemons_smart_check() {
static time_t last_run = 0;
time_t now = uwsgi_now();
if (now - last_run <= 0) {
return;
}
last_run = now;
struct uwsgi_daemon *ud = uwsgi.daemons;
while (ud) {
if (ud->pidfile) {
int checked_pid = uwsgi_check_pidfile(ud->pidfile);
if (checked_pid <= 0) {
// monitored instance
if (ud->status == 2) {
uwsgi_spawn_daemon(ud);
}
else {
ud->pidfile_checks++;
if (ud->pidfile_checks >= (unsigned int) ud->freq) {
uwsgi_log("[uwsgi-daemons] found changed pidfile for \"%s\" (old_pid: %d new_pid: %d)\n", ud->command, (int) ud->pid, (int) checked_pid);
uwsgi_spawn_daemon(ud);
}
}
}
else if (checked_pid != ud->pid) {
uwsgi_log("[uwsgi-daemons] found changed pid for \"%s\" (old_pid: %d new_pid: %d)\n", ud->command, (int) ud->pid, (int) checked_pid);
ud->pid = checked_pid;
}
// all ok, pidfile and process found
else {
ud->status = 2;
}
}
ud = ud->next;
}
}
void uwsgi_daemons_spawn_all() {
struct uwsgi_daemon *ud = uwsgi.daemons;
while (ud) {
if (!ud->registered) {
if (ud->pidfile) {
int checked_pid = uwsgi_check_pidfile(ud->pidfile);
if (checked_pid <= 0) {
uwsgi_spawn_daemon(ud);
}
else {
ud->pid = checked_pid;
uwsgi_log("[uwsgi-daemons] found valid/active pidfile for \"%s\" (pid: %d)\n", ud->command, (int) ud->pid);
}
}
else {
uwsgi_spawn_daemon(ud);
}
ud->registered = 1;
}
ud = ud->next;
}
}
// this function is called when a dumb daemon dies and we want to respawn it
int uwsgi_daemon_check_pid_reload(pid_t diedpid) {
struct uwsgi_daemon *ud = uwsgi.daemons;
while (ud) {
#ifdef UWSGI_SSL
if (ud->pid == diedpid && ud->legion && !uwsgi_legion_i_am_the_lord(ud->legion)) {
// part of legion but not lord, don't respawn
ud->pid = -1;
uwsgi_log("uwsgi-daemons] legion \"%s\" daemon \"%s\" (pid: %d) annihilated\n", ud->legion, ud->command, (int) diedpid);
ud = ud->next;
continue;
}
#endif
if (ud->pid == diedpid && !ud->pidfile) {
if (ud->control) {
gracefully_kill_them_all(0);
return 0;
}
uwsgi_spawn_daemon(ud);
return 1;
}
ud = ud->next;
}
return 0;
}
void uwsgi_daemons_smart_check() {
static time_t last_run = 0;
time_t now = uwsgi_now();
if (now - last_run <= 0) {
return;
}
last_run = now;
struct uwsgi_daemon *ud = uwsgi.daemons;
while (ud) {
#ifdef UWSGI_SSL
if (ud->legion) {
if (uwsgi_legion_i_am_the_lord(ud->legion)) {
// lord, spawn if not running
if (ud->pid <= 0) {
uwsgi_spawn_daemon(ud);
}
}
else {
// not lord, kill daemon if running
if (ud->pid > 0) {
if (!kill(ud->pid, 0)) {
uwsgi_log("[uwsgi_daemons] stopping legion \"%s\" daemon: %s (pid: %d)\n", ud->legion, ud->command, ud->pid);
kill(-ud->pid, ud->stop_signal);
}
else {
// pid already died
ud->pid = -1;
}
}
ud = ud->next;
continue;
}
}
#endif
if (ud->pidfile) {
int checked_pid = uwsgi_check_pidfile(ud->pidfile);
if (checked_pid <= 0) {
// monitored instance
if (ud->status == 2) {
uwsgi_spawn_daemon(ud);
}
else {
ud->pidfile_checks++;
if (ud->pidfile_checks >= (unsigned int) ud->freq) {
if (!ud->has_daemonized) {
uwsgi_log_verbose("[uwsgi-daemons] \"%s\" (pid: %d) did not daemonize !!!\n", ud->command, (int) ud->pid);
ud->pidfile_checks = 0;
}
else {
uwsgi_log("[uwsgi-daemons] found changed pidfile for \"%s\" (old_pid: %d new_pid: %d)\n", ud->command, (int) ud->pid, (int) checked_pid);
uwsgi_spawn_daemon(ud);
}
}
}
}
else if (checked_pid != ud->pid) {
uwsgi_log("[uwsgi-daemons] found changed pid for \"%s\" (old_pid: %d new_pid: %d)\n", ud->command, (int) ud->pid, (int) checked_pid);
ud->pid = checked_pid;
}
// all ok, pidfile and process found
else {
ud->status = 2;
}
}
ud = ud->next;
}
}