void
ngx_single_process_cycle(ngx_cycle_t *cycle)
{
ngx_int_t i;
ngx_tid_t tid;
for (i = 0; ngx_modules[i]; i++) {
if (ngx_modules[i]->init_process) {
if (ngx_modules[i]->init_process(cycle) == NGX_ERROR) {
/* fatal */
exit(2);
}
}
}
ngx_process_init(cycle);
ngx_console_init(cycle);
if (ngx_create_signal_events(cycle) != NGX_OK) {
exit(2);
}
if (ngx_create_thread(&tid, ngx_worker_thread, NULL, cycle->log) != 0) {
/* fatal */
exit(2);
}
/* STUB */
WaitForSingleObject(ngx_stop_event, INFINITE);
}
void
ngx_single_process_cycle(ngx_cycle_t *cycle)
{
ngx_tid_t tid;
ngx_console_init(cycle);
if (ngx_create_signal_events(cycle) != NGX_OK) {
exit(2);
}
if (ngx_create_thread(&tid, ngx_worker_thread, NULL, cycle->log) != 0) {
/* fatal */
exit(2);
}
/* STUB */
WaitForSingleObject(ngx_stop_event, INFINITE);
}
void
ngx_master_process_cycle(ngx_cycle_t *cycle)
{
u_long nev, ev, timeout;
ngx_err_t err;
ngx_int_t n;
ngx_msec_t timer;
ngx_uint_t live;
HANDLE events[MAXIMUM_WAIT_OBJECTS];
ngx_process_init(cycle);
ngx_sprintf((u_char *) ngx_master_process_event_name,
"ngx_master_%s%Z", ngx_unique);
if (ngx_process == NGX_PROCESS_WORKER) {
if (FreeConsole() == 0) {
ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
"FreeConsole() failed");
}
ngx_worker_process_cycle(cycle, ngx_master_process_event_name);
return;
}
ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "master started");
ngx_console_init(cycle);
SetEnvironmentVariable("ngx_unique", ngx_unique);
ngx_master_process_event = CreateEvent(NULL, 1, 0,
ngx_master_process_event_name);
if (ngx_master_process_event == NULL) {
ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
"CreateEvent(\"%s\") failed",
ngx_master_process_event_name);
exit(2);
}
if (ngx_create_signal_events(cycle) != NGX_OK) {
exit(2);
}
ngx_sprintf((u_char *) ngx_cache_manager_mutex_name,
"ngx_cache_manager_mutex_%s%Z", ngx_unique);
ngx_cache_manager_mutex = CreateMutex(NULL, 0,
ngx_cache_manager_mutex_name);
if (ngx_cache_manager_mutex == NULL) {
ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
"CreateMutex(\"%s\") failed", ngx_cache_manager_mutex_name);
exit(2);
}
events[0] = ngx_stop_event;
events[1] = ngx_quit_event;
events[2] = ngx_reopen_event;
events[3] = ngx_reload_event;
// ngx_close_listening_sockets(cycle);
ngx_set_inherited_listen_sockets(cycle);
if (ngx_start_worker_processes(cycle, NGX_PROCESS_RESPAWN) == 0) {
exit(2);
}
timer = 0;
timeout = INFINITE;
for ( ;; ) {
nev = 4;
for (n = 0; n < ngx_last_process; n++) {
if (ngx_processes[n].handle) {
events[nev++] = ngx_processes[n].handle;
}
}
if (timer) {
timeout = timer > ngx_current_msec ? timer - ngx_current_msec : 0;
}
ev = WaitForMultipleObjects(nev, events, 0, timeout);
err = ngx_errno;
ngx_time_update();
ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0,
"master WaitForMultipleObjects: %ul", ev);
if (ev == WAIT_OBJECT_0) {
ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting");
if (ResetEvent(ngx_stop_event) == 0) {
ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
"ResetEvent(\"%s\") failed", ngx_stop_event_name);
}
if (timer == 0) {
timer = ngx_current_msec + 5000;
}
ngx_terminate = 1;
ngx_quit_worker_processes(cycle, 0);
continue;
}
if (ev == WAIT_OBJECT_0 + 1) {
ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "shutting down");
if (ResetEvent(ngx_quit_event) == 0) {
ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
"ResetEvent(\"%s\") failed", ngx_quit_event_name);
}
ngx_quit = 1;
ngx_quit_worker_processes(cycle, 0);
continue;
}
if (ev == WAIT_OBJECT_0 + 2) {
ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reopening logs");
if (ResetEvent(ngx_reopen_event) == 0) {
ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
"ResetEvent(\"%s\") failed",
ngx_reopen_event_name);
}
ngx_reopen_files(cycle, -1);
ngx_reopen_worker_processes(cycle);
continue;
}
if (ev == WAIT_OBJECT_0 + 3) {
ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "reconfiguring");
if (ResetEvent(ngx_reload_event) == 0) {
ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
"ResetEvent(\"%s\") failed",
ngx_reload_event_name);
}
/* 这个方案暂时已经可用了。不好的地方就是不能重启端口。如果端口配置有变化，就会有毛病。
cycle = ngx_init_cycle(cycle);
if (cycle == NULL) {
cycle = (ngx_cycle_t *) ngx_cycle;
continue;
}
ngx_cycle = cycle;
//ngx_close_listening_sockets(cycle);
if (ngx_start_worker_processes(cycle, NGX_PROCESS_JUST_RESPAWN)) {
ngx_quit_worker_processes(cycle, 1);
}
*/
/*---code 这里代码是先退掉所有工作进程，然后关闭listen 端口，再reload 配置，重启端口，重启工作进程*/
ngx_quit_worker_processes(cycle, 0);
ngx_close_listening_sockets(cycle);
ngx_msleep(500);
cycle = ngx_init_cycle(cycle);
if (cycle == NULL) {
cycle = (ngx_cycle_t *) ngx_cycle;
continue;
}
ngx_cycle = cycle;
if (ngx_open_listening_sockets(cycle) != NGX_OK) {
ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
"reload ngx_open_listening_sockets() failed");
ngx_quit = 1;
continue;
}
ngx_set_inherited_listen_sockets(cycle);
if (ngx_start_worker_processes(cycle, NGX_PROCESS_RESPAWN) == 0) {
exit(2);
}
/*---code --- end*/
continue;
}
if (ev > WAIT_OBJECT_0 + 3 && ev < WAIT_OBJECT_0 + nev) {
ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "reap worker");
live = ngx_reap_worker(cycle, events[ev]);
if (!live && (ngx_terminate || ngx_quit)) {
ngx_master_process_exit(cycle);
}
continue;
}
if (ev == WAIT_TIMEOUT) {
ngx_terminate_worker_processes(cycle);
ngx_master_process_exit(cycle);
}
if (ev == WAIT_FAILED) {
ngx_log_error(NGX_LOG_ALERT, cycle->log, err,
"WaitForMultipleObjects() failed");
continue;
}
ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
"WaitForMultipleObjects() returned unexpected value %ul", ev);
}
}
