| |
| /* |
| * Copyright (C) Igor Sysoev |
| * Copyright (C) Nginx, Inc. |
| */ |
| |
| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| #include <ngx_event.h> |
| #include <nginx.h> |
| |
| |
| static void ngx_console_init(ngx_cycle_t *cycle); |
| static int __stdcall ngx_console_handler(u_long type); |
| static ngx_int_t ngx_create_signal_events(ngx_cycle_t *cycle); |
| static ngx_int_t ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t type); |
| static void ngx_reopen_worker_processes(ngx_cycle_t *cycle); |
| static void ngx_quit_worker_processes(ngx_cycle_t *cycle, ngx_uint_t old); |
| static void ngx_terminate_worker_processes(ngx_cycle_t *cycle); |
| static ngx_uint_t ngx_reap_worker(ngx_cycle_t *cycle, HANDLE h); |
| static void ngx_master_process_exit(ngx_cycle_t *cycle); |
| static void ngx_worker_process_cycle(ngx_cycle_t *cycle, char *mevn); |
| static void ngx_worker_process_exit(ngx_cycle_t *cycle); |
| static ngx_thread_value_t __stdcall ngx_worker_thread(void *data); |
| static ngx_thread_value_t __stdcall ngx_cache_manager_thread(void *data); |
| static void ngx_cache_manager_process_handler(void); |
| static ngx_thread_value_t __stdcall ngx_cache_loader_thread(void *data); |
| |
| |
| ngx_uint_t ngx_process; |
| ngx_uint_t ngx_worker; |
| ngx_pid_t ngx_pid; |
| ngx_pid_t ngx_parent; |
| |
| ngx_uint_t ngx_inherited; |
| ngx_pid_t ngx_new_binary; |
| |
| sig_atomic_t ngx_terminate; |
| sig_atomic_t ngx_quit; |
| sig_atomic_t ngx_reopen; |
| sig_atomic_t ngx_reconfigure; |
| ngx_uint_t ngx_exiting; |
| |
| |
| HANDLE ngx_master_process_event; |
| char ngx_master_process_event_name[NGX_PROCESS_SYNC_NAME]; |
| |
| static HANDLE ngx_stop_event; |
| static char ngx_stop_event_name[NGX_PROCESS_SYNC_NAME]; |
| static HANDLE ngx_quit_event; |
| static char ngx_quit_event_name[NGX_PROCESS_SYNC_NAME]; |
| static HANDLE ngx_reopen_event; |
| static char ngx_reopen_event_name[NGX_PROCESS_SYNC_NAME]; |
| static HANDLE ngx_reload_event; |
| static char ngx_reload_event_name[NGX_PROCESS_SYNC_NAME]; |
| |
| HANDLE ngx_cache_manager_mutex; |
| char ngx_cache_manager_mutex_name[NGX_PROCESS_SYNC_NAME]; |
| HANDLE ngx_cache_manager_event; |
| |
| |
| 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_sprintf((u_char *) ngx_master_process_event_name, |
| "ngx_master_%s%Z", ngx_unique); |
| |
| if (ngx_process == NGX_PROCESS_WORKER) { |
| 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); |
| |
| 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); |
| } |
| |
| 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); |
| } |
| |
| 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); |
| } |
| } |
| |
| |
| static void |
| ngx_console_init(ngx_cycle_t *cycle) |
| { |
| ngx_core_conf_t *ccf; |
| |
| ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
| |
| if (ccf->daemon) { |
| if (FreeConsole() == 0) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "FreeConsole() failed"); |
| } |
| |
| return; |
| } |
| |
| if (SetConsoleCtrlHandler(ngx_console_handler, 1) == 0) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "SetConsoleCtrlHandler() failed"); |
| } |
| } |
| |
| |
| static int __stdcall |
| ngx_console_handler(u_long type) |
| { |
| char *msg; |
| |
| switch (type) { |
| |
| case CTRL_C_EVENT: |
| msg = "Ctrl-C pressed, exiting"; |
| break; |
| |
| case CTRL_BREAK_EVENT: |
| msg = "Ctrl-Break pressed, exiting"; |
| break; |
| |
| case CTRL_CLOSE_EVENT: |
| msg = "console closing, exiting"; |
| break; |
| |
| case CTRL_LOGOFF_EVENT: |
| msg = "user logs off, exiting"; |
| break; |
| |
| default: |
| return 0; |
| } |
| |
| ngx_log_error(NGX_LOG_NOTICE, ngx_cycle->log, 0, msg); |
| |
| if (ngx_stop_event == NULL) { |
| return 1; |
| } |
| |
| if (SetEvent(ngx_stop_event) == 0) { |
| ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, |
| "SetEvent(\"%s\") failed", ngx_stop_event_name); |
| } |
| |
| return 1; |
| } |
| |
| |
| static ngx_int_t |
| ngx_create_signal_events(ngx_cycle_t *cycle) |
| { |
| ngx_sprintf((u_char *) ngx_stop_event_name, |
| "Global\\ngx_stop_%s%Z", ngx_unique); |
| |
| ngx_stop_event = CreateEvent(NULL, 1, 0, ngx_stop_event_name); |
| if (ngx_stop_event == NULL) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "CreateEvent(\"%s\") failed", ngx_stop_event_name); |
| return NGX_ERROR; |
| } |
| |
| |
| ngx_sprintf((u_char *) ngx_quit_event_name, |
| "Global\\ngx_quit_%s%Z", ngx_unique); |
| |
| ngx_quit_event = CreateEvent(NULL, 1, 0, ngx_quit_event_name); |
| if (ngx_quit_event == NULL) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "CreateEvent(\"%s\") failed", ngx_quit_event_name); |
| return NGX_ERROR; |
| } |
| |
| |
| ngx_sprintf((u_char *) ngx_reopen_event_name, |
| "Global\\ngx_reopen_%s%Z", ngx_unique); |
| |
| ngx_reopen_event = CreateEvent(NULL, 1, 0, ngx_reopen_event_name); |
| if (ngx_reopen_event == NULL) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "CreateEvent(\"%s\") failed", ngx_reopen_event_name); |
| return NGX_ERROR; |
| } |
| |
| |
| ngx_sprintf((u_char *) ngx_reload_event_name, |
| "Global\\ngx_reload_%s%Z", ngx_unique); |
| |
| ngx_reload_event = CreateEvent(NULL, 1, 0, ngx_reload_event_name); |
| if (ngx_reload_event == NULL) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "CreateEvent(\"%s\") failed", ngx_reload_event_name); |
| return NGX_ERROR; |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_start_worker_processes(ngx_cycle_t *cycle, ngx_int_t type) |
| { |
| ngx_int_t n; |
| ngx_core_conf_t *ccf; |
| |
| ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "start worker processes"); |
| |
| ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); |
| |
| for (n = 0; n < ccf->worker_processes; n++) { |
| if (ngx_spawn_process(cycle, "worker", type) == NGX_INVALID_PID) { |
| break; |
| } |
| } |
| |
| return n; |
| } |
| |
| |
| static void |
| ngx_reopen_worker_processes(ngx_cycle_t *cycle) |
| { |
| ngx_int_t n; |
| |
| for (n = 0; n < ngx_last_process; n++) { |
| |
| if (ngx_processes[n].handle == NULL) { |
| continue; |
| } |
| |
| if (SetEvent(ngx_processes[n].reopen) == 0) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "SetEvent(\"%s\") failed", |
| ngx_processes[n].reopen_event); |
| } |
| } |
| } |
| |
| |
| static void |
| ngx_quit_worker_processes(ngx_cycle_t *cycle, ngx_uint_t old) |
| { |
| ngx_int_t n; |
| |
| for (n = 0; n < ngx_last_process; n++) { |
| |
| ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, |
| "process: %d %P %p e:%d j:%d", |
| n, |
| ngx_processes[n].pid, |
| ngx_processes[n].handle, |
| ngx_processes[n].exiting, |
| ngx_processes[n].just_spawn); |
| |
| if (old && ngx_processes[n].just_spawn) { |
| ngx_processes[n].just_spawn = 0; |
| continue; |
| } |
| |
| if (ngx_processes[n].handle == NULL) { |
| continue; |
| } |
| |
| if (SetEvent(ngx_processes[n].quit) == 0) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "SetEvent(\"%s\") failed", |
| ngx_processes[n].quit_event); |
| } |
| |
| ngx_processes[n].exiting = 1; |
| } |
| } |
| |
| |
| static void |
| ngx_terminate_worker_processes(ngx_cycle_t *cycle) |
| { |
| ngx_int_t n; |
| |
| for (n = 0; n < ngx_last_process; n++) { |
| |
| if (ngx_processes[n].handle == NULL) { |
| continue; |
| } |
| |
| if (TerminateProcess(ngx_processes[n].handle, 0) == 0) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "TerminateProcess(\"%p\") failed", |
| ngx_processes[n].handle); |
| } |
| |
| ngx_processes[n].exiting = 1; |
| |
| ngx_close_handle(ngx_processes[n].reopen); |
| ngx_close_handle(ngx_processes[n].quit); |
| ngx_close_handle(ngx_processes[n].term); |
| ngx_close_handle(ngx_processes[n].handle); |
| } |
| } |
| |
| |
| static ngx_uint_t |
| ngx_reap_worker(ngx_cycle_t *cycle, HANDLE h) |
| { |
| u_long code; |
| ngx_int_t n; |
| |
| for (n = 0; n < ngx_last_process; n++) { |
| |
| if (ngx_processes[n].handle != h) { |
| continue; |
| } |
| |
| if (GetExitCodeProcess(h, &code) == 0) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "GetExitCodeProcess(%P) failed", |
| ngx_processes[n].pid); |
| } |
| |
| ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, |
| "%s process %P exited with code %Xl", |
| ngx_processes[n].name, ngx_processes[n].pid, code); |
| |
| ngx_close_handle(ngx_processes[n].reopen); |
| ngx_close_handle(ngx_processes[n].quit); |
| ngx_close_handle(ngx_processes[n].term); |
| ngx_close_handle(h); |
| |
| ngx_processes[n].handle = NULL; |
| ngx_processes[n].term = NULL; |
| ngx_processes[n].quit = NULL; |
| ngx_processes[n].reopen = NULL; |
| |
| if (!ngx_processes[n].exiting && !ngx_terminate && !ngx_quit) { |
| |
| if (ngx_spawn_process(cycle, ngx_processes[n].name, n) |
| == NGX_INVALID_PID) |
| { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
| "could not respawn %s", ngx_processes[n].name); |
| |
| if (n == ngx_last_process - 1) { |
| ngx_last_process--; |
| } |
| } |
| } |
| |
| goto found; |
| } |
| |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, "unknown process handle %p", h); |
| |
| found: |
| |
| for (n = 0; n < ngx_last_process; n++) { |
| |
| ngx_log_debug5(NGX_LOG_DEBUG_CORE, cycle->log, 0, |
| "process: %d %P %p e:%d j:%d", |
| n, |
| ngx_processes[n].pid, |
| ngx_processes[n].handle, |
| ngx_processes[n].exiting, |
| ngx_processes[n].just_spawn); |
| |
| if (ngx_processes[n].handle) { |
| return 1; |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| static void |
| ngx_master_process_exit(ngx_cycle_t *cycle) |
| { |
| ngx_uint_t i; |
| |
| ngx_delete_pidfile(cycle); |
| |
| ngx_close_handle(ngx_cache_manager_mutex); |
| ngx_close_handle(ngx_stop_event); |
| ngx_close_handle(ngx_quit_event); |
| ngx_close_handle(ngx_reopen_event); |
| ngx_close_handle(ngx_reload_event); |
| ngx_close_handle(ngx_master_process_event); |
| |
| ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); |
| |
| for (i = 0; cycle->modules[i]; i++) { |
| if (cycle->modules[i]->exit_master) { |
| cycle->modules[i]->exit_master(cycle); |
| } |
| } |
| |
| ngx_destroy_pool(cycle->pool); |
| |
| exit(0); |
| } |
| |
| |
| static void |
| ngx_worker_process_cycle(ngx_cycle_t *cycle, char *mevn) |
| { |
| char wtevn[NGX_PROCESS_SYNC_NAME]; |
| char wqevn[NGX_PROCESS_SYNC_NAME]; |
| char wroevn[NGX_PROCESS_SYNC_NAME]; |
| HANDLE mev, events[3]; |
| u_long nev, ev; |
| ngx_err_t err; |
| ngx_tid_t wtid, cmtid, cltid; |
| ngx_log_t *log; |
| |
| log = cycle->log; |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_CORE, log, 0, "worker started"); |
| |
| ngx_sprintf((u_char *) wtevn, "ngx_worker_term_%P%Z", ngx_pid); |
| events[0] = CreateEvent(NULL, 1, 0, wtevn); |
| if (events[0] == NULL) { |
| ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
| "CreateEvent(\"%s\") failed", wtevn); |
| goto failed; |
| } |
| |
| ngx_sprintf((u_char *) wqevn, "ngx_worker_quit_%P%Z", ngx_pid); |
| events[1] = CreateEvent(NULL, 1, 0, wqevn); |
| if (events[1] == NULL) { |
| ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
| "CreateEvent(\"%s\") failed", wqevn); |
| goto failed; |
| } |
| |
| ngx_sprintf((u_char *) wroevn, "ngx_worker_reopen_%P%Z", ngx_pid); |
| events[2] = CreateEvent(NULL, 1, 0, wroevn); |
| if (events[2] == NULL) { |
| ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
| "CreateEvent(\"%s\") failed", wroevn); |
| goto failed; |
| } |
| |
| mev = OpenEvent(EVENT_MODIFY_STATE, 0, mevn); |
| if (mev == NULL) { |
| ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
| "OpenEvent(\"%s\") failed", mevn); |
| goto failed; |
| } |
| |
| if (SetEvent(mev) == 0) { |
| ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
| "SetEvent(\"%s\") failed", mevn); |
| goto failed; |
| } |
| |
| |
| ngx_sprintf((u_char *) ngx_cache_manager_mutex_name, |
| "ngx_cache_manager_mutex_%s%Z", ngx_unique); |
| |
| ngx_cache_manager_mutex = OpenMutex(SYNCHRONIZE, 0, |
| ngx_cache_manager_mutex_name); |
| if (ngx_cache_manager_mutex == NULL) { |
| ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
| "OpenMutex(\"%s\") failed", ngx_cache_manager_mutex_name); |
| goto failed; |
| } |
| |
| ngx_cache_manager_event = CreateEvent(NULL, 1, 0, NULL); |
| if (ngx_cache_manager_event == NULL) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "CreateEvent(\"ngx_cache_manager_event\") failed"); |
| goto failed; |
| } |
| |
| |
| if (ngx_create_thread(&wtid, ngx_worker_thread, NULL, log) != 0) { |
| goto failed; |
| } |
| |
| if (ngx_create_thread(&cmtid, ngx_cache_manager_thread, NULL, log) != 0) { |
| goto failed; |
| } |
| |
| if (ngx_create_thread(&cltid, ngx_cache_loader_thread, NULL, log) != 0) { |
| goto failed; |
| } |
| |
| for ( ;; ) { |
| ev = WaitForMultipleObjects(3, events, 0, INFINITE); |
| |
| err = ngx_errno; |
| ngx_time_update(); |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, |
| "worker WaitForMultipleObjects: %ul", ev); |
| |
| if (ev == WAIT_OBJECT_0) { |
| ngx_terminate = 1; |
| ngx_log_error(NGX_LOG_NOTICE, log, 0, "exiting"); |
| |
| if (ResetEvent(events[0]) == 0) { |
| ngx_log_error(NGX_LOG_ALERT, log, 0, |
| "ResetEvent(\"%s\") failed", wtevn); |
| } |
| |
| break; |
| } |
| |
| if (ev == WAIT_OBJECT_0 + 1) { |
| ngx_quit = 1; |
| ngx_log_error(NGX_LOG_NOTICE, log, 0, "gracefully shutting down"); |
| break; |
| } |
| |
| if (ev == WAIT_OBJECT_0 + 2) { |
| ngx_reopen = 1; |
| ngx_log_error(NGX_LOG_NOTICE, log, 0, "reopening logs"); |
| |
| if (ResetEvent(events[2]) == 0) { |
| ngx_log_error(NGX_LOG_ALERT, log, 0, |
| "ResetEvent(\"%s\") failed", wroevn); |
| } |
| |
| continue; |
| } |
| |
| if (ev == WAIT_FAILED) { |
| ngx_log_error(NGX_LOG_ALERT, log, err, |
| "WaitForMultipleObjects() failed"); |
| |
| goto failed; |
| } |
| } |
| |
| /* wait threads */ |
| |
| if (SetEvent(ngx_cache_manager_event) == 0) { |
| ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, |
| "SetEvent(\"ngx_cache_manager_event\") failed"); |
| } |
| |
| events[1] = wtid; |
| events[2] = cmtid; |
| |
| nev = 3; |
| |
| for ( ;; ) { |
| ev = WaitForMultipleObjects(nev, events, 0, INFINITE); |
| |
| err = ngx_errno; |
| ngx_time_update(); |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, |
| "worker exit WaitForMultipleObjects: %ul", ev); |
| |
| if (ev == WAIT_OBJECT_0) { |
| break; |
| } |
| |
| if (ev == WAIT_OBJECT_0 + 1) { |
| if (nev == 2) { |
| break; |
| } |
| |
| events[1] = events[2]; |
| nev = 2; |
| continue; |
| } |
| |
| if (ev == WAIT_OBJECT_0 + 2) { |
| nev = 2; |
| continue; |
| } |
| |
| if (ev == WAIT_FAILED) { |
| ngx_log_error(NGX_LOG_ALERT, log, err, |
| "WaitForMultipleObjects() failed"); |
| break; |
| } |
| } |
| |
| ngx_close_handle(ngx_cache_manager_event); |
| ngx_close_handle(events[0]); |
| ngx_close_handle(events[1]); |
| ngx_close_handle(events[2]); |
| ngx_close_handle(mev); |
| |
| ngx_worker_process_exit(cycle); |
| |
| failed: |
| |
| exit(2); |
| } |
| |
| |
| static ngx_thread_value_t __stdcall |
| ngx_worker_thread(void *data) |
| { |
| ngx_int_t n; |
| ngx_time_t *tp; |
| ngx_cycle_t *cycle; |
| |
| tp = ngx_timeofday(); |
| srand((ngx_pid << 16) ^ (unsigned) tp->sec ^ tp->msec); |
| |
| cycle = (ngx_cycle_t *) ngx_cycle; |
| |
| for (n = 0; cycle->modules[n]; n++) { |
| if (cycle->modules[n]->init_process) { |
| if (cycle->modules[n]->init_process(cycle) == NGX_ERROR) { |
| /* fatal */ |
| exit(2); |
| } |
| } |
| } |
| |
| while (!ngx_quit) { |
| |
| if (ngx_exiting) { |
| if (ngx_event_no_timers_left() == NGX_OK) { |
| break; |
| } |
| } |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_CORE, cycle->log, 0, "worker cycle"); |
| |
| ngx_process_events_and_timers(cycle); |
| |
| if (ngx_terminate) { |
| return 0; |
| } |
| |
| if (ngx_quit) { |
| ngx_quit = 0; |
| |
| if (!ngx_exiting) { |
| ngx_exiting = 1; |
| ngx_set_shutdown_timer(cycle); |
| ngx_close_listening_sockets(cycle); |
| ngx_close_idle_connections(cycle); |
| } |
| } |
| |
| if (ngx_reopen) { |
| ngx_reopen = 0; |
| ngx_reopen_files(cycle, -1); |
| } |
| } |
| |
| ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); |
| |
| return 0; |
| } |
| |
| |
| static void |
| ngx_worker_process_exit(ngx_cycle_t *cycle) |
| { |
| ngx_uint_t i; |
| ngx_connection_t *c; |
| |
| ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exit"); |
| |
| for (i = 0; cycle->modules[i]; i++) { |
| if (cycle->modules[i]->exit_process) { |
| cycle->modules[i]->exit_process(cycle); |
| } |
| } |
| |
| if (ngx_exiting) { |
| c = cycle->connections; |
| for (i = 0; i < cycle->connection_n; i++) { |
| if (c[i].fd != (ngx_socket_t) -1 |
| && c[i].read |
| && !c[i].read->accept |
| && !c[i].read->channel |
| && !c[i].read->resolver) |
| { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, 0, |
| "*%uA open socket #%d left in connection %ui", |
| c[i].number, c[i].fd, i); |
| } |
| } |
| } |
| |
| ngx_destroy_pool(cycle->pool); |
| |
| exit(0); |
| } |
| |
| |
| static ngx_thread_value_t __stdcall |
| ngx_cache_manager_thread(void *data) |
| { |
| u_long ev; |
| HANDLE events[2]; |
| ngx_err_t err; |
| ngx_cycle_t *cycle; |
| |
| cycle = (ngx_cycle_t *) ngx_cycle; |
| |
| events[0] = ngx_cache_manager_event; |
| events[1] = ngx_cache_manager_mutex; |
| |
| for ( ;; ) { |
| ev = WaitForMultipleObjects(2, events, 0, INFINITE); |
| |
| err = ngx_errno; |
| ngx_time_update(); |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, |
| "cache manager WaitForMultipleObjects: %ul", ev); |
| |
| if (ev == WAIT_FAILED) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, err, |
| "WaitForMultipleObjects() failed"); |
| } |
| |
| /* |
| * ev == WAIT_OBJECT_0 |
| * ev == WAIT_OBJECT_0 + 1 |
| * ev == WAIT_ABANDONED_0 + 1 |
| */ |
| |
| if (ngx_terminate || ngx_quit || ngx_exiting) { |
| ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); |
| return 0; |
| } |
| |
| break; |
| } |
| |
| for ( ;; ) { |
| |
| if (ngx_terminate || ngx_quit || ngx_exiting) { |
| ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "exiting"); |
| break; |
| } |
| |
| ngx_cache_manager_process_handler(); |
| } |
| |
| if (ReleaseMutex(ngx_cache_manager_mutex) == 0) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "ReleaseMutex() failed"); |
| } |
| |
| return 0; |
| } |
| |
| |
| static void |
| ngx_cache_manager_process_handler(void) |
| { |
| u_long ev; |
| ngx_uint_t i; |
| ngx_msec_t next, n; |
| ngx_path_t **path; |
| |
| next = 60 * 60 * 1000; |
| |
| path = ngx_cycle->paths.elts; |
| for (i = 0; i < ngx_cycle->paths.nelts; i++) { |
| |
| if (path[i]->manager) { |
| n = path[i]->manager(path[i]->data); |
| |
| next = (n <= next) ? n : next; |
| |
| ngx_time_update(); |
| } |
| } |
| |
| if (next == 0) { |
| next = 1; |
| } |
| |
| ev = WaitForSingleObject(ngx_cache_manager_event, (u_long) next); |
| |
| if (ev != WAIT_TIMEOUT) { |
| |
| ngx_time_update(); |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_CORE, ngx_cycle->log, 0, |
| "cache manager WaitForSingleObject: %ul", ev); |
| } |
| } |
| |
| |
| static ngx_thread_value_t __stdcall |
| ngx_cache_loader_thread(void *data) |
| { |
| ngx_uint_t i; |
| ngx_path_t **path; |
| ngx_cycle_t *cycle; |
| |
| ngx_msleep(60000); |
| |
| cycle = (ngx_cycle_t *) ngx_cycle; |
| |
| path = cycle->paths.elts; |
| for (i = 0; i < cycle->paths.nelts; i++) { |
| |
| if (ngx_terminate || ngx_quit || ngx_exiting) { |
| break; |
| } |
| |
| if (path[i]->loader) { |
| path[i]->loader(path[i]->data); |
| ngx_time_update(); |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| 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); |
| } |
| |
| |
| ngx_int_t |
| ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_pid_t pid) |
| { |
| HANDLE ev; |
| ngx_int_t rc; |
| char evn[NGX_PROCESS_SYNC_NAME]; |
| |
| ngx_sprintf((u_char *) evn, "Global\\ngx_%s_%P%Z", sig, pid); |
| |
| ev = OpenEvent(EVENT_MODIFY_STATE, 0, evn); |
| if (ev == NULL) { |
| ngx_log_error(NGX_LOG_ERR, cycle->log, ngx_errno, |
| "OpenEvent(\"%s\") failed", evn); |
| return 1; |
| } |
| |
| if (SetEvent(ev) == 0) { |
| ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, |
| "SetEvent(\"%s\") failed", evn); |
| rc = 1; |
| |
| } else { |
| rc = 0; |
| } |
| |
| ngx_close_handle(ev); |
| |
| return rc; |
| } |
| |
| |
| void |
| ngx_close_handle(HANDLE h) |
| { |
| if (CloseHandle(h) == 0) { |
| ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, ngx_errno, |
| "CloseHandle(%p) failed", h); |
| } |
| } |
