|  |  | 
|  | /* | 
|  | * Copyright (C) Igor Sysoev | 
|  | */ | 
|  |  | 
|  |  | 
|  | #include <ngx_config.h> | 
|  | #include <ngx_core.h> | 
|  | #include <ngx_event.h> | 
|  |  | 
|  |  | 
|  | static ngx_int_t ngx_cmp_sockaddr(struct sockaddr *sa1, struct sockaddr *sa2); | 
|  | static void ngx_clean_old_cycles(ngx_event_t *ev); | 
|  |  | 
|  |  | 
|  | volatile ngx_cycle_t  *ngx_cycle; | 
|  | ngx_array_t            ngx_old_cycles; | 
|  |  | 
|  | static ngx_pool_t     *ngx_temp_pool; | 
|  | static ngx_event_t     ngx_cleaner_event; | 
|  |  | 
|  | ngx_uint_t             ngx_test_config; | 
|  |  | 
|  | #if (NGX_THREADS) | 
|  | ngx_tls_key_t          ngx_core_tls_key; | 
|  | #endif | 
|  |  | 
|  |  | 
|  | /* STUB NAME */ | 
|  | static ngx_connection_t  dumb; | 
|  | /* STUB */ | 
|  |  | 
|  | #ifdef NGX_ERROR_LOG_PATH | 
|  | static ngx_str_t  error_log = ngx_string(NGX_ERROR_LOG_PATH); | 
|  | #else | 
|  | static ngx_str_t  error_log = ngx_null_string; | 
|  | #endif | 
|  |  | 
|  |  | 
|  | ngx_cycle_t *ngx_init_cycle(ngx_cycle_t *old_cycle) | 
|  | { | 
|  | void               *rv; | 
|  | ngx_uint_t          i, n, failed; | 
|  | ngx_log_t          *log; | 
|  | ngx_conf_t          conf; | 
|  | ngx_pool_t         *pool; | 
|  | ngx_cycle_t        *cycle, **old; | 
|  | ngx_socket_t        fd; | 
|  | ngx_list_part_t    *part; | 
|  | ngx_open_file_t    *file; | 
|  | ngx_listening_t    *ls, *nls; | 
|  | ngx_core_conf_t    *ccf; | 
|  | ngx_core_module_t  *module; | 
|  |  | 
|  | log = old_cycle->log; | 
|  |  | 
|  | pool = ngx_create_pool(NGX_CYCLE_POOL_SIZE, log); | 
|  | if (pool == NULL) { | 
|  | return NULL; | 
|  | } | 
|  | pool->log = log; | 
|  |  | 
|  | cycle = ngx_pcalloc(pool, sizeof(ngx_cycle_t)); | 
|  | if (cycle == NULL) { | 
|  | ngx_destroy_pool(pool); | 
|  | return NULL; | 
|  | } | 
|  |  | 
|  | cycle->pool = pool; | 
|  | cycle->log = log; | 
|  | cycle->old_cycle = old_cycle; | 
|  | cycle->conf_file = old_cycle->conf_file; | 
|  | cycle->root.len = sizeof(NGX_PREFIX) - 1; | 
|  | cycle->root.data = (u_char *) NGX_PREFIX; | 
|  |  | 
|  |  | 
|  | n = old_cycle->pathes.nelts ? old_cycle->pathes.nelts : 10; | 
|  |  | 
|  | cycle->pathes.elts = ngx_pcalloc(pool, n * sizeof(ngx_path_t *)); | 
|  | if (cycle->pathes.elts == NULL) { | 
|  | ngx_destroy_pool(pool); | 
|  | return NULL; | 
|  | } | 
|  |  | 
|  | cycle->pathes.nelts = 0; | 
|  | cycle->pathes.size = sizeof(ngx_path_t *); | 
|  | cycle->pathes.nalloc = n; | 
|  | cycle->pathes.pool = pool; | 
|  |  | 
|  |  | 
|  | if (old_cycle->open_files.part.nelts) { | 
|  | n = old_cycle->open_files.part.nelts; | 
|  | for (part = old_cycle->open_files.part.next; part; part = part->next) { | 
|  | n += part->nelts; | 
|  | } | 
|  |  | 
|  | } else { | 
|  | n = 20; | 
|  | } | 
|  |  | 
|  | if (ngx_list_init(&cycle->open_files, pool, n, sizeof(ngx_open_file_t)) | 
|  | == NGX_ERROR) | 
|  | { | 
|  | ngx_destroy_pool(pool); | 
|  | return NULL; | 
|  | } | 
|  |  | 
|  |  | 
|  | cycle->new_log = ngx_log_create_errlog(cycle, NULL); | 
|  | if (cycle->new_log == NULL) { | 
|  | ngx_destroy_pool(pool); | 
|  | return NULL; | 
|  | } | 
|  |  | 
|  | cycle->new_log->file->name = error_log; | 
|  |  | 
|  |  | 
|  | n = old_cycle->listening.nelts ? old_cycle->listening.nelts : 10; | 
|  |  | 
|  | cycle->listening.elts = ngx_pcalloc(pool, n * sizeof(ngx_listening_t)); | 
|  | if (cycle->listening.elts == NULL) { | 
|  | ngx_destroy_pool(pool); | 
|  | return NULL; | 
|  | } | 
|  |  | 
|  | cycle->listening.nelts = 0; | 
|  | cycle->listening.size = sizeof(ngx_listening_t); | 
|  | cycle->listening.nalloc = n; | 
|  | cycle->listening.pool = pool; | 
|  |  | 
|  |  | 
|  | cycle->conf_ctx = ngx_pcalloc(pool, ngx_max_module * sizeof(void *)); | 
|  | if (cycle->conf_ctx == NULL) { | 
|  | ngx_destroy_pool(pool); | 
|  | return NULL; | 
|  | } | 
|  |  | 
|  |  | 
|  | for (i = 0; ngx_modules[i]; i++) { | 
|  | if (ngx_modules[i]->type != NGX_CORE_MODULE) { | 
|  | continue; | 
|  | } | 
|  |  | 
|  | module = ngx_modules[i]->ctx; | 
|  |  | 
|  | if (module->create_conf) { | 
|  | rv = module->create_conf(cycle); | 
|  | if (rv == NGX_CONF_ERROR) { | 
|  | ngx_destroy_pool(pool); | 
|  | return NULL; | 
|  | } | 
|  | cycle->conf_ctx[ngx_modules[i]->index] = rv; | 
|  | } | 
|  | } | 
|  |  | 
|  |  | 
|  | ngx_memzero(&conf, sizeof(ngx_conf_t)); | 
|  | /* STUB: init array ? */ | 
|  | conf.args = ngx_array_create(pool, 10, sizeof(ngx_str_t)); | 
|  | if (conf.args == NULL) { | 
|  | ngx_destroy_pool(pool); | 
|  | return NULL; | 
|  | } | 
|  |  | 
|  | conf.ctx = cycle->conf_ctx; | 
|  | conf.cycle = cycle; | 
|  | conf.pool = pool; | 
|  | conf.log = log; | 
|  | conf.module_type = NGX_CORE_MODULE; | 
|  | conf.cmd_type = NGX_MAIN_CONF; | 
|  |  | 
|  | #if 0 | 
|  | log->log_level = NGX_LOG_DEBUG_ALL; | 
|  | #endif | 
|  |  | 
|  | if (ngx_conf_parse(&conf, &cycle->conf_file) != NGX_CONF_OK) { | 
|  | ngx_destroy_pool(pool); | 
|  | return NULL; | 
|  | } | 
|  |  | 
|  | if (ngx_test_config) { | 
|  | ngx_log_error(NGX_LOG_INFO, log, 0, | 
|  | "the configuration file %s syntax is ok", | 
|  | cycle->conf_file.data); | 
|  | } | 
|  |  | 
|  |  | 
|  | for (i = 0; ngx_modules[i]; i++) { | 
|  | if (ngx_modules[i]->type != NGX_CORE_MODULE) { | 
|  | continue; | 
|  | } | 
|  |  | 
|  | module = ngx_modules[i]->ctx; | 
|  |  | 
|  | if (module->init_conf) { | 
|  | if (module->init_conf(cycle, cycle->conf_ctx[ngx_modules[i]->index]) | 
|  | == NGX_CONF_ERROR) | 
|  | { | 
|  | ngx_destroy_pool(pool); | 
|  | return NULL; | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  |  | 
|  | failed = 0; | 
|  |  | 
|  |  | 
|  | #if !(NGX_WIN32) | 
|  | if (ngx_create_pidfile(cycle, old_cycle) == NGX_ERROR) { | 
|  | failed = 1; | 
|  | } | 
|  | #endif | 
|  |  | 
|  |  | 
|  | if (!failed) { | 
|  | ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, | 
|  | ngx_core_module); | 
|  |  | 
|  | if (ngx_create_pathes(cycle, ccf->user) == NGX_ERROR) { | 
|  | failed = 1; | 
|  | } | 
|  | } | 
|  |  | 
|  |  | 
|  | if (!failed) { | 
|  |  | 
|  | /* open the new files */ | 
|  |  | 
|  | part = &cycle->open_files.part; | 
|  | file = part->elts; | 
|  |  | 
|  | for (i = 0; /* void */ ; i++) { | 
|  |  | 
|  | if (i >= part->nelts) { | 
|  | if (part->next == NULL) { | 
|  | break; | 
|  | } | 
|  | part = part->next; | 
|  | file = part->elts; | 
|  | i = 0; | 
|  | } | 
|  |  | 
|  | if (file[i].name.data == NULL) { | 
|  | continue; | 
|  | } | 
|  |  | 
|  | file[i].fd = ngx_open_file(file[i].name.data, | 
|  | NGX_FILE_RDWR, | 
|  | NGX_FILE_CREATE_OR_OPEN|NGX_FILE_APPEND); | 
|  |  | 
|  | ngx_log_debug3(NGX_LOG_DEBUG_CORE, log, 0, | 
|  | "log: %p %d \"%s\"", | 
|  | &file[i], file[i].fd, file[i].name.data); | 
|  |  | 
|  | if (file[i].fd == NGX_INVALID_FILE) { | 
|  | ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, | 
|  | ngx_open_file_n " \"%s\" failed", | 
|  | file[i].name.data); | 
|  | failed = 1; | 
|  | break; | 
|  | } | 
|  |  | 
|  | #if (NGX_WIN32) | 
|  | if (ngx_file_append_mode(file[i].fd) == NGX_ERROR) { | 
|  | ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, | 
|  | ngx_file_append_mode_n " \"%s\" failed", | 
|  | file[i].name.data); | 
|  | failed = 1; | 
|  | break; | 
|  | } | 
|  | #else | 
|  | if (fcntl(file[i].fd, F_SETFD, FD_CLOEXEC) == -1) { | 
|  | ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, | 
|  | "fcntl(FD_CLOEXEC) \"%s\" failed", | 
|  | file[i].name.data); | 
|  | failed = 1; | 
|  | break; | 
|  | } | 
|  | #endif | 
|  | } | 
|  | } | 
|  |  | 
|  | cycle->log = cycle->new_log; | 
|  | pool->log = cycle->new_log; | 
|  |  | 
|  | if (cycle->log->log_level == 0) { | 
|  | cycle->log->log_level = NGX_LOG_ERR; | 
|  | } | 
|  |  | 
|  | if (!failed) { | 
|  |  | 
|  | /* handle the listening sockets */ | 
|  |  | 
|  | if (old_cycle->listening.nelts) { | 
|  | ls = old_cycle->listening.elts; | 
|  | for (i = 0; i < old_cycle->listening.nelts; i++) { | 
|  | ls[i].remain = 0; | 
|  | } | 
|  |  | 
|  | nls = cycle->listening.elts; | 
|  | for (n = 0; n < cycle->listening.nelts; n++) { | 
|  |  | 
|  | for (i = 0; i < old_cycle->listening.nelts; i++) { | 
|  | if (ls[i].ignore) { | 
|  | continue; | 
|  | } | 
|  |  | 
|  | if (ngx_cmp_sockaddr(nls[n].sockaddr, ls[i].sockaddr) | 
|  | == NGX_OK) | 
|  | { | 
|  | fd = ls[i].fd; | 
|  | #if (NGX_WIN32) | 
|  | /* | 
|  | * Winsock assignes a socket number divisible by 4 so | 
|  | * to find a connection we divide a socket number by 4. | 
|  | */ | 
|  |  | 
|  | fd /= 4; | 
|  | #endif | 
|  | if (fd >= (ngx_socket_t) cycle->connection_n) { | 
|  | ngx_log_error(NGX_LOG_EMERG, log, 0, | 
|  | "%d connections is not enough to hold " | 
|  | "an open listening socket on %V, " | 
|  | "required at least %d connections", | 
|  | cycle->connection_n, | 
|  | &ls[i].addr_text, fd); | 
|  | failed = 1; | 
|  | break; | 
|  | } | 
|  |  | 
|  | nls[n].fd = ls[i].fd; | 
|  | nls[i].remain = 1; | 
|  | ls[i].remain = 1; | 
|  | break; | 
|  | } | 
|  | } | 
|  |  | 
|  | if (nls[n].fd == -1) { | 
|  | nls[n].open = 1; | 
|  | } | 
|  | } | 
|  |  | 
|  | } else { | 
|  | ls = cycle->listening.elts; | 
|  | for (i = 0; i < cycle->listening.nelts; i++) { | 
|  | ls[i].open = 1; | 
|  | } | 
|  | } | 
|  |  | 
|  | if (!ngx_test_config && !failed) { | 
|  | if (ngx_open_listening_sockets(cycle) == NGX_ERROR) { | 
|  | failed = 1; | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | if (failed) { | 
|  |  | 
|  | /* rollback the new cycle configuration */ | 
|  |  | 
|  | part = &cycle->open_files.part; | 
|  | file = part->elts; | 
|  |  | 
|  | for (i = 0; /* void */ ; i++) { | 
|  |  | 
|  | if (i >= part->nelts) { | 
|  | if (part->next == NULL) { | 
|  | break; | 
|  | } | 
|  | part = part->next; | 
|  | file = part->elts; | 
|  | i = 0; | 
|  | } | 
|  |  | 
|  | if (file[i].fd == NGX_INVALID_FILE | 
|  | || file[i].fd == ngx_stderr_fileno) | 
|  | { | 
|  | continue; | 
|  | } | 
|  |  | 
|  | if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) { | 
|  | ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, | 
|  | ngx_close_file_n " \"%s\" failed", | 
|  | file[i].name.data); | 
|  | } | 
|  | } | 
|  |  | 
|  | if (ngx_test_config) { | 
|  | ngx_destroy_pool(pool); | 
|  | return NULL; | 
|  | } | 
|  |  | 
|  | ls = cycle->listening.elts; | 
|  | for (i = 0; i < cycle->listening.nelts; i++) { | 
|  | if (ls[i].fd == -1 || !ls[i].open) { | 
|  | continue; | 
|  | } | 
|  |  | 
|  | if (ngx_close_socket(ls[i].fd) == -1) { | 
|  | ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, | 
|  | ngx_close_socket_n " %V failed", | 
|  | &ls[i].addr_text); | 
|  | } | 
|  | } | 
|  |  | 
|  | ngx_destroy_pool(pool); | 
|  | return NULL; | 
|  | } | 
|  |  | 
|  |  | 
|  | /* commit the new cycle configuration */ | 
|  |  | 
|  | #if !(NGX_WIN32) | 
|  |  | 
|  | if (!ngx_test_config && cycle->log->file->fd != STDERR_FILENO) { | 
|  |  | 
|  | ngx_log_debug3(NGX_LOG_DEBUG_CORE, log, 0, | 
|  | "dup2: %p %d \"%s\"", | 
|  | cycle->log->file, | 
|  | cycle->log->file->fd, cycle->log->file->name.data); | 
|  |  | 
|  | if (dup2(cycle->log->file->fd, STDERR_FILENO) == NGX_ERROR) { | 
|  | ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, | 
|  | "dup2(STDERR) failed"); | 
|  | /* fatal */ | 
|  | exit(1); | 
|  | } | 
|  | } | 
|  |  | 
|  | #endif | 
|  |  | 
|  | pool->log = cycle->log; | 
|  |  | 
|  | for (i = 0; ngx_modules[i]; i++) { | 
|  | if (ngx_modules[i]->init_module) { | 
|  | if (ngx_modules[i]->init_module(cycle) == NGX_ERROR) { | 
|  | /* fatal */ | 
|  | exit(1); | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  |  | 
|  | /* close and delete stuff that lefts from an old cycle */ | 
|  |  | 
|  | /* close the unneeded listening sockets */ | 
|  |  | 
|  | ls = old_cycle->listening.elts; | 
|  | for (i = 0; i < old_cycle->listening.nelts; i++) { | 
|  | if (ls[i].remain) { | 
|  | continue; | 
|  | } | 
|  |  | 
|  | if (ngx_close_socket(ls[i].fd) == -1) { | 
|  | ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, | 
|  | ngx_close_socket_n " %V failed", | 
|  | &ls[i].addr_text); | 
|  | } | 
|  | } | 
|  |  | 
|  |  | 
|  | /* close the unneeded open files */ | 
|  |  | 
|  | part = &old_cycle->open_files.part; | 
|  | file = part->elts; | 
|  |  | 
|  | for (i = 0; /* void */ ; i++) { | 
|  |  | 
|  | if (i >= part->nelts) { | 
|  | if (part->next == NULL) { | 
|  | break; | 
|  | } | 
|  | part = part->next; | 
|  | file = part->elts; | 
|  | i = 0; | 
|  | } | 
|  |  | 
|  | if (file[i].fd == NGX_INVALID_FILE || file[i].fd == ngx_stderr_fileno) { | 
|  | continue; | 
|  | } | 
|  |  | 
|  | if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) { | 
|  | ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, | 
|  | ngx_close_file_n " \"%s\" failed", | 
|  | file[i].name.data); | 
|  | } | 
|  | } | 
|  |  | 
|  | if (old_cycle->connections == NULL) { | 
|  | /* an old cycle is an init cycle */ | 
|  | ngx_destroy_pool(old_cycle->pool); | 
|  | return cycle; | 
|  | } | 
|  |  | 
|  | if (ngx_process == NGX_PROCESS_MASTER) { | 
|  | ngx_destroy_pool(old_cycle->pool); | 
|  | return cycle; | 
|  | } | 
|  |  | 
|  | if (ngx_temp_pool == NULL) { | 
|  | ngx_temp_pool = ngx_create_pool(128, cycle->log); | 
|  | if (ngx_temp_pool == NULL) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, | 
|  | "can not create ngx_temp_pool"); | 
|  | exit(1); | 
|  | } | 
|  |  | 
|  | n = 10; | 
|  | ngx_old_cycles.elts = ngx_pcalloc(ngx_temp_pool, | 
|  | n * sizeof(ngx_cycle_t *)); | 
|  | if (ngx_old_cycles.elts == NULL) { | 
|  | exit(1); | 
|  | } | 
|  | ngx_old_cycles.nelts = 0; | 
|  | ngx_old_cycles.size = sizeof(ngx_cycle_t *); | 
|  | ngx_old_cycles.nalloc = n; | 
|  | ngx_old_cycles.pool = ngx_temp_pool; | 
|  |  | 
|  | ngx_cleaner_event.handler = ngx_clean_old_cycles; | 
|  | ngx_cleaner_event.log = cycle->log; | 
|  | ngx_cleaner_event.data = &dumb; | 
|  | dumb.fd = (ngx_socket_t) -1; | 
|  | } | 
|  |  | 
|  | ngx_temp_pool->log = cycle->log; | 
|  |  | 
|  | old = ngx_array_push(&ngx_old_cycles); | 
|  | if (old == NULL) { | 
|  | exit(1); | 
|  | } | 
|  | *old = old_cycle; | 
|  |  | 
|  | if (!ngx_cleaner_event.timer_set) { | 
|  | ngx_add_timer(&ngx_cleaner_event, 30000); | 
|  | ngx_cleaner_event.timer_set = 1; | 
|  | } | 
|  |  | 
|  | return cycle; | 
|  | } | 
|  |  | 
|  |  | 
|  | static ngx_int_t ngx_cmp_sockaddr(struct sockaddr *sa1, struct sockaddr *sa2) | 
|  | { | 
|  | struct sockaddr_in  *sin1, *sin2; | 
|  |  | 
|  | /* AF_INET only */ | 
|  |  | 
|  | if (sa1->sa_family != AF_INET || sa2->sa_family != AF_INET) { | 
|  | return NGX_DECLINED; | 
|  | } | 
|  |  | 
|  | sin1 = (struct sockaddr_in *) sa1; | 
|  | sin2 = (struct sockaddr_in *) sa2; | 
|  |  | 
|  | if (sin1->sin_addr.s_addr != sin2->sin_addr.s_addr) { | 
|  | return NGX_DECLINED; | 
|  | } | 
|  |  | 
|  | if (sin1->sin_port != sin2->sin_port) { | 
|  | return NGX_DECLINED; | 
|  | } | 
|  |  | 
|  | return NGX_OK; | 
|  | } | 
|  |  | 
|  |  | 
|  | #if !(NGX_WIN32) | 
|  |  | 
|  | ngx_int_t ngx_create_pidfile(ngx_cycle_t *cycle, ngx_cycle_t *old_cycle) | 
|  | { | 
|  | ngx_uint_t        trunc; | 
|  | size_t            len; | 
|  | u_char            pid[NGX_INT64_LEN]; | 
|  | ngx_file_t        file; | 
|  | ngx_core_conf_t  *ccf, *old_ccf; | 
|  |  | 
|  | if (!ngx_test_config && old_cycle && old_cycle->conf_ctx == NULL) { | 
|  |  | 
|  | /* | 
|  | * do not create the pid file in the first ngx_init_cycle() call | 
|  | * because we need to write the demonized process pid | 
|  | */ | 
|  |  | 
|  | return NGX_OK; | 
|  | } | 
|  |  | 
|  | ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | 
|  |  | 
|  | if (!ngx_test_config && old_cycle) { | 
|  | old_ccf = (ngx_core_conf_t *) ngx_get_conf(old_cycle->conf_ctx, | 
|  | ngx_core_module); | 
|  |  | 
|  | if (ccf->pid.len == old_ccf->pid.len | 
|  | && ngx_strcmp(ccf->pid.data, old_ccf->pid.data) == 0) | 
|  | { | 
|  |  | 
|  | /* pid file name is the same */ | 
|  |  | 
|  | return NGX_OK; | 
|  | } | 
|  | } | 
|  |  | 
|  | ngx_memzero(&file, sizeof(ngx_file_t)); | 
|  | file.name = (ngx_inherited && getppid() > 1) ? ccf->newpid : ccf->pid; | 
|  | file.log = cycle->log; | 
|  |  | 
|  | trunc = ngx_test_config ? 0: NGX_FILE_TRUNCATE; | 
|  |  | 
|  | file.fd = ngx_open_file(file.name.data, NGX_FILE_RDWR, | 
|  | NGX_FILE_CREATE_OR_OPEN|trunc); | 
|  |  | 
|  | if (file.fd == NGX_INVALID_FILE) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 
|  | ngx_open_file_n " \"%s\" failed", file.name.data); | 
|  | return NGX_ERROR; | 
|  | } | 
|  |  | 
|  | if (!ngx_test_config) { | 
|  | len = ngx_sprintf(pid, "%P", ngx_pid) - pid; | 
|  |  | 
|  | if (ngx_write_file(&file, pid, len, 0) == NGX_ERROR) { | 
|  | return NGX_ERROR; | 
|  | } | 
|  | } | 
|  |  | 
|  | if (ngx_close_file(file.fd) == NGX_FILE_ERROR) { | 
|  | ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | 
|  | ngx_close_file_n " \"%s\" failed", file.name.data); | 
|  | } | 
|  |  | 
|  | ngx_delete_pidfile(old_cycle); | 
|  |  | 
|  | return NGX_OK; | 
|  | } | 
|  |  | 
|  |  | 
|  | void ngx_delete_pidfile(ngx_cycle_t *cycle) | 
|  | { | 
|  | u_char           *name; | 
|  | ngx_core_conf_t  *ccf; | 
|  |  | 
|  | if (cycle == NULL || cycle->conf_ctx == NULL) { | 
|  | return; | 
|  | } | 
|  |  | 
|  | ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); | 
|  |  | 
|  | if (ngx_inherited && getppid() > 1) { | 
|  | name = ccf->newpid.data; | 
|  |  | 
|  | } else { | 
|  | name = ccf->pid.data; | 
|  | } | 
|  |  | 
|  | if (ngx_delete_file(name) == NGX_FILE_ERROR) { | 
|  | ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, | 
|  | ngx_delete_file_n " \"%s\" failed", name); | 
|  | } | 
|  | } | 
|  |  | 
|  | #endif | 
|  |  | 
|  |  | 
|  | void ngx_reopen_files(ngx_cycle_t *cycle, ngx_uid_t user) | 
|  | { | 
|  | ngx_fd_t          fd; | 
|  | ngx_uint_t        i; | 
|  | ngx_list_part_t  *part; | 
|  | ngx_open_file_t  *file; | 
|  | #if !(NGX_WIN32) | 
|  | ngx_file_info_t   fi; | 
|  | #endif | 
|  |  | 
|  | part = &cycle->open_files.part; | 
|  | file = part->elts; | 
|  |  | 
|  | for (i = 0; /* void */ ; i++) { | 
|  |  | 
|  | if (i >= part->nelts) { | 
|  | if (part->next == NULL) { | 
|  | break; | 
|  | } | 
|  | part = part->next; | 
|  | i = 0; | 
|  | } | 
|  |  | 
|  | if (file[i].name.data == NULL) { | 
|  | continue; | 
|  | } | 
|  |  | 
|  | fd = ngx_open_file(file[i].name.data, NGX_FILE_RDWR, | 
|  | NGX_FILE_CREATE_OR_OPEN|NGX_FILE_APPEND); | 
|  |  | 
|  | ngx_log_debug3(NGX_LOG_DEBUG_EVENT, cycle->log, 0, | 
|  | "reopen file \"%s\", old:%d new:%d", | 
|  | file[i].name.data, file[i].fd, fd); | 
|  |  | 
|  | if (fd == NGX_INVALID_FILE) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 
|  | ngx_open_file_n " \"%s\" failed", file[i].name.data); | 
|  | continue; | 
|  | } | 
|  |  | 
|  | #if (NGX_WIN32) | 
|  | if (ngx_file_append_mode(fd) == NGX_ERROR) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 
|  | ngx_file_append_mode_n " \"%s\" failed", | 
|  | file[i].name.data); | 
|  |  | 
|  | if (ngx_close_file(fd) == NGX_FILE_ERROR) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 
|  | ngx_close_file_n " \"%s\" failed", | 
|  | file[i].name.data); | 
|  | } | 
|  |  | 
|  | continue; | 
|  | } | 
|  | #else | 
|  | if (user != (ngx_uid_t) -1) { | 
|  |  | 
|  | if (ngx_file_info((const char *) file[i].name.data, &fi) == -1) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 
|  | ngx_file_info_n " \"%s\" failed", | 
|  | file[i].name.data); | 
|  |  | 
|  | if (ngx_close_file(fd) == NGX_FILE_ERROR) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 
|  | ngx_close_file_n " \"%s\" failed", | 
|  | file[i].name.data); | 
|  | } | 
|  | } | 
|  |  | 
|  | if (fi.st_uid != user) { | 
|  | if (chown((const char *) file[i].name.data, user, -1) == -1) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 
|  | "chown(\"%s\", %d) failed", | 
|  | file[i].name.data, user); | 
|  |  | 
|  | if (ngx_close_file(fd) == NGX_FILE_ERROR) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 
|  | ngx_close_file_n " \"%s\" failed", | 
|  | file[i].name.data); | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | if ((fi.st_mode & (S_IRUSR|S_IWUSR)) != (S_IRUSR|S_IWUSR)) { | 
|  |  | 
|  | fi.st_mode |= (S_IRUSR|S_IWUSR); | 
|  |  | 
|  | if (chmod((const char *) file[i].name.data, fi.st_mode) == -1) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 
|  | "chmod() \"%s\" failed", file[i].name.data); | 
|  |  | 
|  | if (ngx_close_file(fd) == NGX_FILE_ERROR) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 
|  | ngx_close_file_n " \"%s\" failed", | 
|  | file[i].name.data); | 
|  | } | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 
|  | "fcntl(FD_CLOEXEC) \"%s\" failed", | 
|  | file[i].name.data); | 
|  |  | 
|  | if (ngx_close_file(fd) == NGX_FILE_ERROR) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 
|  | ngx_close_file_n " \"%s\" failed", | 
|  | file[i].name.data); | 
|  | } | 
|  |  | 
|  | continue; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | if (ngx_close_file(file[i].fd) == NGX_FILE_ERROR) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 
|  | ngx_close_file_n " \"%s\" failed", | 
|  | file[i].name.data); | 
|  | } | 
|  |  | 
|  | file[i].fd = fd; | 
|  | } | 
|  |  | 
|  | #if !(NGX_WIN32) | 
|  |  | 
|  | if (cycle->log->file->fd != STDERR_FILENO) { | 
|  | if (dup2(cycle->log->file->fd, STDERR_FILENO) == -1) { | 
|  | ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, | 
|  | "dup2(STDERR) failed"); | 
|  | } | 
|  | } | 
|  |  | 
|  | #endif | 
|  | } | 
|  |  | 
|  |  | 
|  | static void ngx_clean_old_cycles(ngx_event_t *ev) | 
|  | { | 
|  | ngx_uint_t     i, n, found, live; | 
|  | ngx_log_t     *log; | 
|  | ngx_cycle_t  **cycle; | 
|  |  | 
|  | log = ngx_cycle->log; | 
|  | ngx_temp_pool->log = log; | 
|  |  | 
|  | ngx_log_debug0(NGX_LOG_DEBUG_CORE, log, 0, "clean old cycles"); | 
|  |  | 
|  | live = 0; | 
|  |  | 
|  | cycle = ngx_old_cycles.elts; | 
|  | for (i = 0; i < ngx_old_cycles.nelts; i++) { | 
|  |  | 
|  | if (cycle[i] == NULL) { | 
|  | continue; | 
|  | } | 
|  |  | 
|  | found = 0; | 
|  |  | 
|  | for (n = 0; n < cycle[i]->connection_n; n++) { | 
|  | if (cycle[i]->connections[n].fd != (ngx_socket_t) -1) { | 
|  | found = 1; | 
|  |  | 
|  | ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "live fd:%d", n); | 
|  |  | 
|  | break; | 
|  | } | 
|  | } | 
|  |  | 
|  | if (found) { | 
|  | live = 1; | 
|  | continue; | 
|  | } | 
|  |  | 
|  | ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "clean old cycle: %d", i); | 
|  |  | 
|  | ngx_destroy_pool(cycle[i]->pool); | 
|  | cycle[i] = NULL; | 
|  | } | 
|  |  | 
|  | ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "old cycles status: %d", live); | 
|  |  | 
|  | if (live) { | 
|  | ngx_add_timer(ev, 30000); | 
|  |  | 
|  | } else { | 
|  | ngx_destroy_pool(ngx_temp_pool); | 
|  | ngx_temp_pool = NULL; | 
|  | ngx_old_cycles.nelts = 0; | 
|  | } | 
|  | } |