diff options
Diffstat (limited to 'app/nginx/src/os/win32/ngx_process_cycle.c')
| -rw-r--r-- | app/nginx/src/os/win32/ngx_process_cycle.c | 1042 |
1 files changed, 1042 insertions, 0 deletions
diff --git a/app/nginx/src/os/win32/ngx_process_cycle.c b/app/nginx/src/os/win32/ngx_process_cycle.c new file mode 100644 index 0000000..293b967 --- /dev/null +++ b/app/nginx/src/os/win32/ngx_process_cycle.c @@ -0,0 +1,1042 @@ + +/* + * 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_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); + } +} |