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#include "uwsgi.h"
extern struct uwsgi_server uwsgi;
int uwsgi_master_manage_events(int interesting_fd) {
// is a logline ?
if (uwsgi.log_master && !uwsgi.threaded_logger) {
// stderr log ?
if (interesting_fd == uwsgi.shared->worker_log_pipe[0]) {
uwsgi_master_log();
return 0;
}
// req log ?
if (uwsgi.req_log_master && interesting_fd == uwsgi.shared->worker_req_log_pipe[0]) {
uwsgi_master_req_log();
return 0;
}
}
if (uwsgi.master_fifo_fd > -1 && interesting_fd == uwsgi.master_fifo_fd) {
return uwsgi_master_fifo_manage(uwsgi.master_fifo_fd);
}
if (uwsgi.notify_socket_fd > -1 && interesting_fd == uwsgi.notify_socket_fd) {
return uwsgi_notify_socket_manage(interesting_fd);
}
// stats server ?
if (uwsgi.stats && uwsgi.stats_fd > -1) {
if (interesting_fd == uwsgi.stats_fd) {
uwsgi_send_stats(uwsgi.stats_fd, uwsgi_master_generate_stats);
return 0;
}
}
// a zerg connection ?
if (uwsgi.zerg_server) {
if (interesting_fd == uwsgi.zerg_server_fd) {
uwsgi_manage_zerg(uwsgi.zerg_server_fd, 0, NULL);
return 0;
}
}
// emperor event ?
if (uwsgi.has_emperor) {
if (uwsgi.emperor_fd_proxy > -1 && interesting_fd == uwsgi.emperor_fd_proxy) {
uwsgi_master_manage_emperor_proxy();
return 0;
}
if (interesting_fd == uwsgi.emperor_fd) {
uwsgi_master_manage_emperor();
return 0;
}
}
#ifdef __linux__
if (uwsgi.setns_socket && uwsgi.setns_socket_fd > -1 && interesting_fd == uwsgi.setns_socket_fd) {
uwsgi_master_manage_setns(uwsgi.setns_socket_fd);
}
#endif
if (uwsgi_fsmon_event(interesting_fd)) {
return 0;
}
// reload on fd
if (uwsgi.reload_on_fd) {
// custom -> fd
// custom2 -> len (optional, default 1)
// custom_ptr -> log message (optional)
struct uwsgi_string_list *usl = uwsgi.reload_on_fd;
while(usl) {
if (interesting_fd == (int) usl->custom) {
char stack_tmp[8];
char *tmp = stack_tmp;
if (usl->custom2 > 8) {
tmp = uwsgi_malloc(usl->custom2);
}
if (read(interesting_fd, tmp, usl->custom2) <= 0) {
uwsgi_error("[reload-on-fd] read()");
}
if (usl->custom_ptr) {
uwsgi_log_verbose("*** fd %d ready: %s ***\n", interesting_fd, usl->custom_ptr);
}
else {
uwsgi_log_verbose("*** fd %d ready !!! ***\n", interesting_fd);
}
uwsgi_block_signal(SIGHUP);
grace_them_all(0);
uwsgi_unblock_signal(SIGHUP);
return 0;
}
usl = usl->next;
}
}
// brutal reload on fd
if (uwsgi.brutal_reload_on_fd) {
// custom -> fd
// custom2 -> len (optional, default 1)
// custom_ptr -> log message (optional)
struct uwsgi_string_list *usl = uwsgi.brutal_reload_on_fd;
while(usl) {
if (interesting_fd == (int) usl->custom) {
char stack_tmp[8];
char *tmp = stack_tmp;
if (usl->custom2 > 8) {
tmp = uwsgi_malloc(usl->custom2);
}
if (read(interesting_fd, tmp, usl->custom2) <= 0) {
uwsgi_error("[brutal-reload-on-fd] read()");
}
if (usl->custom_ptr) {
uwsgi_log_verbose("*** fd %d ready: %s ***\n", interesting_fd, usl->custom_ptr);
}
else {
uwsgi_log_verbose("*** fd %d ready !!! ***\n", interesting_fd);
}
if (uwsgi.die_on_term) {
uwsgi_block_signal(SIGQUIT);
reap_them_all(0);
uwsgi_unblock_signal(SIGQUIT);
}
else {
uwsgi_block_signal(SIGTERM);
reap_them_all(0);
uwsgi_unblock_signal(SIGTERM);
}
if (usl->custom2 > 8) free(tmp);
return 0;
}
usl = usl->next;
}
}
// wakeup from cheap mode ?
if (uwsgi.status.is_cheap) {
struct uwsgi_socket *uwsgi_sock = uwsgi.sockets;
while (uwsgi_sock) {
if (interesting_fd == uwsgi_sock->fd) {
uwsgi.status.is_cheap = 0;
uwsgi_del_sockets_from_queue(uwsgi.master_queue);
// how many worker we need to respawn ?
int needed = uwsgi.numproc;
// if in cheaper mode, just respawn the minimal amount
if (uwsgi.cheaper) {
needed = uwsgi.cheaper_count;
}
int i;
for (i = 1; i <= needed; i++) {
if (uwsgi_respawn_worker(i))
return -1;
}
// here we continue instead of returning
break;
}
uwsgi_sock = uwsgi_sock->next;
}
}
// an SNMP request ?
if (uwsgi.snmp_addr && interesting_fd == uwsgi.snmp_fd) {
uwsgi_master_manage_snmp(uwsgi.snmp_fd);
return 0;
}
// a UDP request ?
if (uwsgi.udp_socket && interesting_fd == uwsgi.udp_fd) {
uwsgi_master_manage_udp(uwsgi.udp_fd);
return 0;
}
// check if some file monitor is ready
// no need to lock as we are only getting registered items (and only the master can register them)
int i;
for (i = 0; i < ushared->files_monitored_cnt; i++) {
if (ushared->files_monitored[i].registered) {
if (interesting_fd == ushared->files_monitored[i].fd) {
struct uwsgi_fmon *uf = event_queue_ack_file_monitor(uwsgi.master_queue, interesting_fd);
// now call the file_monitor handler
if (uf)
uwsgi_route_signal(uf->sig);
return 0;
}
}
}
// check if some timer elapsed
// no need to lock again
for (i = 0; i < ushared->timers_cnt; i++) {
if (ushared->timers[i].registered) {
if (interesting_fd == ushared->timers[i].fd) {
struct uwsgi_timer *ut = event_queue_ack_timer(interesting_fd);
// now call the timer handler
if (ut)
uwsgi_route_signal(ut->sig);
return 0;
}
}
}
uint8_t uwsgi_signal;
// check for worker signal
if (interesting_fd == uwsgi.shared->worker_signal_pipe[0]) {
ssize_t rlen = read(interesting_fd, &uwsgi_signal, 1);
if (rlen < 0) {
uwsgi_error("uwsgi_master_manage_events()/read()");
}
else if (rlen > 0) {
uwsgi_route_signal(uwsgi_signal);
}
else {
// TODO restart workers here
uwsgi_log_verbose("lost connection with workers !!!\n");
close(interesting_fd);
}
return 0;
}
// check for spooler signal
if (uwsgi.spoolers) {
if (interesting_fd == uwsgi.shared->spooler_signal_pipe[0]) {
ssize_t rlen = read(interesting_fd, &uwsgi_signal, 1);
if (rlen < 0) {
uwsgi_error("uwsgi_master_manage_events()/read()");
}
else if (rlen > 0) {
uwsgi_route_signal(uwsgi_signal);
}
else {
// TODO restart spoolers here
uwsgi_log_verbose("lost connection with spoolers\n");
close(interesting_fd);
}
return 0;
}
}
// check for mules signal
if (uwsgi.mules_cnt > 0) {
if (interesting_fd == uwsgi.shared->mule_signal_pipe[0]) {
ssize_t rlen = read(interesting_fd, &uwsgi_signal, 1);
if (rlen < 0) {
uwsgi_error("uwsgi_master_manage_events()/read()");
}
else if (rlen > 0) {
uwsgi_route_signal(uwsgi_signal);
}
else {
// TODO respawn mules here
uwsgi_log_verbose("lost connection with mules\n");
close(interesting_fd);
}
// return 0;
}
}
return 0;
}
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