diff options
Diffstat (limited to 'app/nginx/src/core/ngx_cycle.c')
| -rw-r--r-- | app/nginx/src/core/ngx_cycle.c | 1384 |
1 files changed, 0 insertions, 1384 deletions
diff --git a/app/nginx/src/core/ngx_cycle.c b/app/nginx/src/core/ngx_cycle.c deleted file mode 100644 index aee7a58..0000000 --- a/app/nginx/src/core/ngx_cycle.c +++ /dev/null @@ -1,1384 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> - - -static void ngx_destroy_cycle_pools(ngx_conf_t *conf); -static ngx_int_t ngx_init_zone_pool(ngx_cycle_t *cycle, - ngx_shm_zone_t *shm_zone); -static ngx_int_t ngx_test_lockfile(u_char *file, ngx_log_t *log); -static void ngx_clean_old_cycles(ngx_event_t *ev); -static void ngx_shutdown_timer_handler(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; -static ngx_event_t ngx_shutdown_event; - -ngx_uint_t ngx_test_config; -ngx_uint_t ngx_dump_config; -ngx_uint_t ngx_quiet_mode; - - -/* STUB NAME */ -static ngx_connection_t dumb; -/* STUB */ - - -ngx_cycle_t * -ngx_init_cycle(ngx_cycle_t *old_cycle) -{ - void *rv; - char **senv; - ngx_uint_t i, n; - ngx_log_t *log; - ngx_time_t *tp; - ngx_conf_t conf; - ngx_pool_t *pool; - ngx_cycle_t *cycle, **old; - ngx_shm_zone_t *shm_zone, *oshm_zone; - ngx_list_part_t *part, *opart; - ngx_open_file_t *file; - ngx_listening_t *ls, *nls; - ngx_core_conf_t *ccf, *old_ccf; - ngx_core_module_t *module; - char hostname[NGX_MAXHOSTNAMELEN]; - - ngx_timezone_update(); - - /* force localtime update with a new timezone */ - - tp = ngx_timeofday(); - tp->sec = 0; - - ngx_time_update(); - - - 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_prefix.len = old_cycle->conf_prefix.len; - cycle->conf_prefix.data = ngx_pstrdup(pool, &old_cycle->conf_prefix); - if (cycle->conf_prefix.data == NULL) { - ngx_destroy_pool(pool); - return NULL; - } - - cycle->prefix.len = old_cycle->prefix.len; - cycle->prefix.data = ngx_pstrdup(pool, &old_cycle->prefix); - if (cycle->prefix.data == NULL) { - ngx_destroy_pool(pool); - return NULL; - } - - cycle->conf_file.len = old_cycle->conf_file.len; - cycle->conf_file.data = ngx_pnalloc(pool, old_cycle->conf_file.len + 1); - if (cycle->conf_file.data == NULL) { - ngx_destroy_pool(pool); - return NULL; - } - ngx_cpystrn(cycle->conf_file.data, old_cycle->conf_file.data, - old_cycle->conf_file.len + 1); - - cycle->conf_param.len = old_cycle->conf_param.len; - cycle->conf_param.data = ngx_pstrdup(pool, &old_cycle->conf_param); - if (cycle->conf_param.data == NULL) { - ngx_destroy_pool(pool); - return NULL; - } - - - n = old_cycle->paths.nelts ? old_cycle->paths.nelts : 10; - - if (ngx_array_init(&cycle->paths, pool, n, sizeof(ngx_path_t *)) - != NGX_OK) - { - ngx_destroy_pool(pool); - return NULL; - } - - ngx_memzero(cycle->paths.elts, n * sizeof(ngx_path_t *)); - - - if (ngx_array_init(&cycle->config_dump, pool, 1, sizeof(ngx_conf_dump_t)) - != NGX_OK) - { - ngx_destroy_pool(pool); - return NULL; - } - - ngx_rbtree_init(&cycle->config_dump_rbtree, &cycle->config_dump_sentinel, - ngx_str_rbtree_insert_value); - - 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_OK) - { - ngx_destroy_pool(pool); - return NULL; - } - - - if (old_cycle->shared_memory.part.nelts) { - n = old_cycle->shared_memory.part.nelts; - for (part = old_cycle->shared_memory.part.next; part; part = part->next) - { - n += part->nelts; - } - - } else { - n = 1; - } - - if (ngx_list_init(&cycle->shared_memory, pool, n, sizeof(ngx_shm_zone_t)) - != NGX_OK) - { - ngx_destroy_pool(pool); - return NULL; - } - - n = old_cycle->listening.nelts ? old_cycle->listening.nelts : 10; - - if (ngx_array_init(&cycle->listening, pool, n, sizeof(ngx_listening_t)) - != NGX_OK) - { - ngx_destroy_pool(pool); - return NULL; - } - - ngx_memzero(cycle->listening.elts, n * sizeof(ngx_listening_t)); - - - ngx_queue_init(&cycle->reusable_connections_queue); - - - cycle->conf_ctx = ngx_pcalloc(pool, ngx_max_module * sizeof(void *)); - if (cycle->conf_ctx == NULL) { - ngx_destroy_pool(pool); - return NULL; - } - - - if (gethostname(hostname, NGX_MAXHOSTNAMELEN) == -1) { - ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "gethostname() failed"); - ngx_destroy_pool(pool); - return NULL; - } - - /* on Linux gethostname() silently truncates name that does not fit */ - - hostname[NGX_MAXHOSTNAMELEN - 1] = '\0'; - cycle->hostname.len = ngx_strlen(hostname); - - cycle->hostname.data = ngx_pnalloc(pool, cycle->hostname.len); - if (cycle->hostname.data == NULL) { - ngx_destroy_pool(pool); - return NULL; - } - - ngx_strlow(cycle->hostname.data, (u_char *) hostname, cycle->hostname.len); - - - if (ngx_cycle_modules(cycle) != NGX_OK) { - ngx_destroy_pool(pool); - return NULL; - } - - - for (i = 0; cycle->modules[i]; i++) { - if (cycle->modules[i]->type != NGX_CORE_MODULE) { - continue; - } - - module = cycle->modules[i]->ctx; - - if (module->create_conf) { - rv = module->create_conf(cycle); - if (rv == NULL) { - ngx_destroy_pool(pool); - return NULL; - } - cycle->conf_ctx[cycle->modules[i]->index] = rv; - } - } - - - senv = environ; - - - 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.temp_pool = ngx_create_pool(NGX_CYCLE_POOL_SIZE, log); - if (conf.temp_pool == 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_param(&conf) != NGX_CONF_OK) { - environ = senv; - ngx_destroy_cycle_pools(&conf); - return NULL; - } - - if (ngx_conf_parse(&conf, &cycle->conf_file) != NGX_CONF_OK) { - environ = senv; - ngx_destroy_cycle_pools(&conf); - return NULL; - } - - if (ngx_test_config && !ngx_quiet_mode) { - ngx_log_stderr(0, "the configuration file %s syntax is ok", - cycle->conf_file.data); - } - - for (i = 0; cycle->modules[i]; i++) { - if (cycle->modules[i]->type != NGX_CORE_MODULE) { - continue; - } - - module = cycle->modules[i]->ctx; - - if (module->init_conf) { - if (module->init_conf(cycle, - cycle->conf_ctx[cycle->modules[i]->index]) - == NGX_CONF_ERROR) - { - environ = senv; - ngx_destroy_cycle_pools(&conf); - return NULL; - } - } - } - - if (ngx_process == NGX_PROCESS_SIGNALLER) { - return cycle; - } - - ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); - - if (ngx_test_config) { - - if (ngx_create_pidfile(&ccf->pid, log) != NGX_OK) { - goto failed; - } - - } else if (!ngx_is_init_cycle(old_cycle)) { - - /* - * we do not create the pid file in the first ngx_init_cycle() call - * because we need to write the demonized process pid - */ - - 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) - { - /* new pid file name */ - - if (ngx_create_pidfile(&ccf->pid, log) != NGX_OK) { - goto failed; - } - - ngx_delete_pidfile(old_cycle); - } - } - - - if (ngx_test_lockfile(cycle->lock_file.data, log) != NGX_OK) { - goto failed; - } - - - if (ngx_create_paths(cycle, ccf->user) != NGX_OK) { - goto failed; - } - - - if (ngx_log_open_default(cycle) != NGX_OK) { - goto 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.len == 0) { - continue; - } - - file[i].fd = ngx_open_file(file[i].name.data, - NGX_FILE_APPEND, - NGX_FILE_CREATE_OR_OPEN, - NGX_FILE_DEFAULT_ACCESS); - - 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); - goto failed; - } - -#if !(NGX_WIN32) - 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); - goto failed; - } -#endif - } - - cycle->log = &cycle->new_log; - pool->log = &cycle->new_log; - - - /* create shared memory */ - - part = &cycle->shared_memory.part; - shm_zone = part->elts; - - for (i = 0; /* void */ ; i++) { - - if (i >= part->nelts) { - if (part->next == NULL) { - break; - } - part = part->next; - shm_zone = part->elts; - i = 0; - } - - if (shm_zone[i].shm.size == 0) { - ngx_log_error(NGX_LOG_EMERG, log, 0, - "zero size shared memory zone \"%V\"", - &shm_zone[i].shm.name); - goto failed; - } - - shm_zone[i].shm.log = cycle->log; - - opart = &old_cycle->shared_memory.part; - oshm_zone = opart->elts; - - for (n = 0; /* void */ ; n++) { - - if (n >= opart->nelts) { - if (opart->next == NULL) { - break; - } - opart = opart->next; - oshm_zone = opart->elts; - n = 0; - } - - if (shm_zone[i].shm.name.len != oshm_zone[n].shm.name.len) { - continue; - } - - if (ngx_strncmp(shm_zone[i].shm.name.data, - oshm_zone[n].shm.name.data, - shm_zone[i].shm.name.len) - != 0) - { - continue; - } - - if (shm_zone[i].tag == oshm_zone[n].tag - && shm_zone[i].shm.size == oshm_zone[n].shm.size - && !shm_zone[i].noreuse) - { - shm_zone[i].shm.addr = oshm_zone[n].shm.addr; -#if (NGX_WIN32) - shm_zone[i].shm.handle = oshm_zone[n].shm.handle; -#endif - - if (shm_zone[i].init(&shm_zone[i], oshm_zone[n].data) - != NGX_OK) - { - goto failed; - } - - goto shm_zone_found; - } - - ngx_shm_free(&oshm_zone[n].shm); - - break; - } - - if (ngx_shm_alloc(&shm_zone[i].shm) != NGX_OK) { - goto failed; - } - - if (ngx_init_zone_pool(cycle, &shm_zone[i]) != NGX_OK) { - goto failed; - } - - if (shm_zone[i].init(&shm_zone[i], NULL) != NGX_OK) { - goto failed; - } - - shm_zone_found: - - continue; - } - - - /* 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 (ls[i].remain) { - continue; - } - - if (ls[i].type != nls[n].type) { - continue; - } - - if (ngx_cmp_sockaddr(nls[n].sockaddr, nls[n].socklen, - ls[i].sockaddr, ls[i].socklen, 1) - == NGX_OK) - { - nls[n].fd = ls[i].fd; - nls[n].previous = &ls[i]; - ls[i].remain = 1; - - if (ls[i].backlog != nls[n].backlog) { - nls[n].listen = 1; - } - -#if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER) - - /* - * FreeBSD, except the most recent versions, - * could not remove accept filter - */ - nls[n].deferred_accept = ls[i].deferred_accept; - - if (ls[i].accept_filter && nls[n].accept_filter) { - if (ngx_strcmp(ls[i].accept_filter, - nls[n].accept_filter) - != 0) - { - nls[n].delete_deferred = 1; - nls[n].add_deferred = 1; - } - - } else if (ls[i].accept_filter) { - nls[n].delete_deferred = 1; - - } else if (nls[n].accept_filter) { - nls[n].add_deferred = 1; - } -#endif - -#if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT) - - if (ls[i].deferred_accept && !nls[n].deferred_accept) { - nls[n].delete_deferred = 1; - - } else if (ls[i].deferred_accept != nls[n].deferred_accept) - { - nls[n].add_deferred = 1; - } -#endif - -#if (NGX_HAVE_REUSEPORT) - if (nls[n].reuseport && !ls[i].reuseport) { - nls[n].add_reuseport = 1; - } -#endif - - break; - } - } - - if (nls[n].fd == (ngx_socket_t) -1) { - nls[n].open = 1; -#if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER) - if (nls[n].accept_filter) { - nls[n].add_deferred = 1; - } -#endif -#if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT) - if (nls[n].deferred_accept) { - nls[n].add_deferred = 1; - } -#endif - } - } - - } else { - ls = cycle->listening.elts; - for (i = 0; i < cycle->listening.nelts; i++) { - ls[i].open = 1; -#if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER) - if (ls[i].accept_filter) { - ls[i].add_deferred = 1; - } -#endif -#if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT) - if (ls[i].deferred_accept) { - ls[i].add_deferred = 1; - } -#endif - } - } - - if (ngx_open_listening_sockets(cycle) != NGX_OK) { - goto failed; - } - - if (!ngx_test_config) { - ngx_configure_listening_sockets(cycle); - } - - - /* commit the new cycle configuration */ - - if (!ngx_use_stderr) { - (void) ngx_log_redirect_stderr(cycle); - } - - pool->log = cycle->log; - - if (ngx_init_modules(cycle) != NGX_OK) { - /* fatal */ - exit(1); - } - - - /* close and delete stuff that lefts from an old cycle */ - - /* free the unnecessary shared memory */ - - opart = &old_cycle->shared_memory.part; - oshm_zone = opart->elts; - - for (i = 0; /* void */ ; i++) { - - if (i >= opart->nelts) { - if (opart->next == NULL) { - goto old_shm_zone_done; - } - opart = opart->next; - oshm_zone = opart->elts; - i = 0; - } - - part = &cycle->shared_memory.part; - shm_zone = part->elts; - - for (n = 0; /* void */ ; n++) { - - if (n >= part->nelts) { - if (part->next == NULL) { - break; - } - part = part->next; - shm_zone = part->elts; - n = 0; - } - - if (oshm_zone[i].shm.name.len == shm_zone[n].shm.name.len - && ngx_strncmp(oshm_zone[i].shm.name.data, - shm_zone[n].shm.name.data, - oshm_zone[i].shm.name.len) - == 0) - { - goto live_shm_zone; - } - } - - ngx_shm_free(&oshm_zone[i].shm); - - live_shm_zone: - - continue; - } - -old_shm_zone_done: - - - /* close the unnecessary listening sockets */ - - ls = old_cycle->listening.elts; - for (i = 0; i < old_cycle->listening.nelts; i++) { - - if (ls[i].remain || ls[i].fd == (ngx_socket_t) -1) { - continue; - } - - if (ngx_close_socket(ls[i].fd) == -1) { - ngx_log_error(NGX_LOG_EMERG, log, ngx_socket_errno, - ngx_close_socket_n " listening socket on %V failed", - &ls[i].addr_text); - } - -#if (NGX_HAVE_UNIX_DOMAIN) - - if (ls[i].sockaddr->sa_family == AF_UNIX) { - u_char *name; - - name = ls[i].addr_text.data + sizeof("unix:") - 1; - - ngx_log_error(NGX_LOG_WARN, cycle->log, 0, - "deleting socket %s", name); - - if (ngx_delete_file(name) == NGX_FILE_ERROR) { - ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_socket_errno, - ngx_delete_file_n " %s failed", name); - } - } - -#endif - } - - - /* close the unnecessary 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) { - 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); - } - } - - ngx_destroy_pool(conf.temp_pool); - - if (ngx_process == NGX_PROCESS_MASTER || ngx_is_init_cycle(old_cycle)) { - - ngx_destroy_pool(old_cycle->pool); - cycle->old_cycle = NULL; - - 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, - "could not create ngx_temp_pool"); - exit(1); - } - - n = 10; - - if (ngx_array_init(&ngx_old_cycles, ngx_temp_pool, n, - sizeof(ngx_cycle_t *)) - != NGX_OK) - { - exit(1); - } - - ngx_memzero(ngx_old_cycles.elts, n * sizeof(ngx_cycle_t *)); - - 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; - - -failed: - - if (!ngx_is_init_cycle(old_cycle)) { - old_ccf = (ngx_core_conf_t *) ngx_get_conf(old_cycle->conf_ctx, - ngx_core_module); - if (old_ccf->environment) { - environ = old_ccf->environment; - } - } - - /* 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) { - 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_cycle_pools(&conf); - return NULL; - } - - ls = cycle->listening.elts; - for (i = 0; i < cycle->listening.nelts; i++) { - if (ls[i].fd == (ngx_socket_t) -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_cycle_pools(&conf); - - return NULL; -} - - -static void -ngx_destroy_cycle_pools(ngx_conf_t *conf) -{ - ngx_destroy_pool(conf->temp_pool); - ngx_destroy_pool(conf->pool); -} - - -static ngx_int_t -ngx_init_zone_pool(ngx_cycle_t *cycle, ngx_shm_zone_t *zn) -{ - u_char *file; - ngx_slab_pool_t *sp; - - sp = (ngx_slab_pool_t *) zn->shm.addr; - - if (zn->shm.exists) { - - if (sp == sp->addr) { - return NGX_OK; - } - -#if (NGX_WIN32) - - /* remap at the required address */ - - if (ngx_shm_remap(&zn->shm, sp->addr) != NGX_OK) { - return NGX_ERROR; - } - - sp = (ngx_slab_pool_t *) zn->shm.addr; - - if (sp == sp->addr) { - return NGX_OK; - } - -#endif - - ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, - "shared zone \"%V\" has no equal addresses: %p vs %p", - &zn->shm.name, sp->addr, sp); - return NGX_ERROR; - } - - sp->end = zn->shm.addr + zn->shm.size; - sp->min_shift = 3; - sp->addr = zn->shm.addr; - -#if (NGX_HAVE_ATOMIC_OPS) - - file = NULL; - -#else - - file = ngx_pnalloc(cycle->pool, cycle->lock_file.len + zn->shm.name.len); - if (file == NULL) { - return NGX_ERROR; - } - - (void) ngx_sprintf(file, "%V%V%Z", &cycle->lock_file, &zn->shm.name); - -#endif - - if (ngx_shmtx_create(&sp->mutex, &sp->lock, file) != NGX_OK) { - return NGX_ERROR; - } - - ngx_slab_init(sp); - - return NGX_OK; -} - - -ngx_int_t -ngx_create_pidfile(ngx_str_t *name, ngx_log_t *log) -{ - size_t len; - ngx_uint_t create; - ngx_file_t file; - u_char pid[NGX_INT64_LEN + 2]; - - if (ngx_process > NGX_PROCESS_MASTER) { - return NGX_OK; - } - - ngx_memzero(&file, sizeof(ngx_file_t)); - - file.name = *name; - file.log = log; - - create = ngx_test_config ? NGX_FILE_CREATE_OR_OPEN : NGX_FILE_TRUNCATE; - - file.fd = ngx_open_file(file.name.data, NGX_FILE_RDWR, - create, NGX_FILE_DEFAULT_ACCESS); - - if (file.fd == NGX_INVALID_FILE) { - ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, - ngx_open_file_n " \"%s\" failed", file.name.data); - return NGX_ERROR; - } - - if (!ngx_test_config) { - len = ngx_snprintf(pid, NGX_INT64_LEN + 2, "%P%N", 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, log, ngx_errno, - ngx_close_file_n " \"%s\" failed", file.name.data); - } - - return NGX_OK; -} - - -void -ngx_delete_pidfile(ngx_cycle_t *cycle) -{ - u_char *name; - ngx_core_conf_t *ccf; - - ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); - - name = ngx_new_binary ? ccf->oldpid.data : 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); - } -} - - -ngx_int_t -ngx_signal_process(ngx_cycle_t *cycle, char *sig) -{ - ssize_t n; - ngx_pid_t pid; - ngx_file_t file; - ngx_core_conf_t *ccf; - u_char buf[NGX_INT64_LEN + 2]; - - ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, "signal process started"); - - ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); - - ngx_memzero(&file, sizeof(ngx_file_t)); - - file.name = ccf->pid; - file.log = cycle->log; - - file.fd = ngx_open_file(file.name.data, NGX_FILE_RDONLY, - NGX_FILE_OPEN, NGX_FILE_DEFAULT_ACCESS); - - if (file.fd == NGX_INVALID_FILE) { - ngx_log_error(NGX_LOG_ERR, cycle->log, ngx_errno, - ngx_open_file_n " \"%s\" failed", file.name.data); - return 1; - } - - n = ngx_read_file(&file, buf, NGX_INT64_LEN + 2, 0); - - 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); - } - - if (n == NGX_ERROR) { - return 1; - } - - while (n-- && (buf[n] == CR || buf[n] == LF)) { /* void */ } - - pid = ngx_atoi(buf, ++n); - - if (pid == (ngx_pid_t) NGX_ERROR) { - ngx_log_error(NGX_LOG_ERR, cycle->log, 0, - "invalid PID number \"%*s\" in \"%s\"", - n, buf, file.name.data); - return 1; - } - - return ngx_os_signal_process(cycle, sig, pid); - -} - - -static ngx_int_t -ngx_test_lockfile(u_char *file, ngx_log_t *log) -{ -#if !(NGX_HAVE_ATOMIC_OPS) - ngx_fd_t fd; - - fd = ngx_open_file(file, NGX_FILE_RDWR, NGX_FILE_CREATE_OR_OPEN, - NGX_FILE_DEFAULT_ACCESS); - - if (fd == NGX_INVALID_FILE) { - ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, - ngx_open_file_n " \"%s\" failed", file); - return NGX_ERROR; - } - - if (ngx_close_file(fd) == NGX_FILE_ERROR) { - ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, - ngx_close_file_n " \"%s\" failed", file); - } - - if (ngx_delete_file(file) == NGX_FILE_ERROR) { - ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, - ngx_delete_file_n " \"%s\" failed", file); - } - -#endif - - return NGX_OK; -} - - -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; - - 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.len == 0) { - continue; - } - - if (file[i].flush) { - file[i].flush(&file[i], cycle->log); - } - - fd = ngx_open_file(file[i].name.data, NGX_FILE_APPEND, - NGX_FILE_CREATE_OR_OPEN, NGX_FILE_DEFAULT_ACCESS); - - 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 (user != (ngx_uid_t) NGX_CONF_UNSET_UINT) { - ngx_file_info_t fi; - - if (ngx_file_info((const char *) file[i].name.data, &fi) - == NGX_FILE_ERROR) - { - 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); - } - - continue; - } - - 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); - } - - continue; - } - } - - 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); - } - - continue; - } - } - } - - 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; - } - - (void) ngx_log_redirect_stderr(cycle); -} - - -ngx_shm_zone_t * -ngx_shared_memory_add(ngx_conf_t *cf, ngx_str_t *name, size_t size, void *tag) -{ - ngx_uint_t i; - ngx_shm_zone_t *shm_zone; - ngx_list_part_t *part; - - part = &cf->cycle->shared_memory.part; - shm_zone = part->elts; - - for (i = 0; /* void */ ; i++) { - - if (i >= part->nelts) { - if (part->next == NULL) { - break; - } - part = part->next; - shm_zone = part->elts; - i = 0; - } - - if (name->len != shm_zone[i].shm.name.len) { - continue; - } - - if (ngx_strncmp(name->data, shm_zone[i].shm.name.data, name->len) - != 0) - { - continue; - } - - if (tag != shm_zone[i].tag) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "the shared memory zone \"%V\" is " - "already declared for a different use", - &shm_zone[i].shm.name); - return NULL; - } - - if (shm_zone[i].shm.size == 0) { - shm_zone[i].shm.size = size; - } - - if (size && size != shm_zone[i].shm.size) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "the size %uz of shared memory zone \"%V\" " - "conflicts with already declared size %uz", - size, &shm_zone[i].shm.name, shm_zone[i].shm.size); - return NULL; - } - - return &shm_zone[i]; - } - - shm_zone = ngx_list_push(&cf->cycle->shared_memory); - - if (shm_zone == NULL) { - return NULL; - } - - shm_zone->data = NULL; - shm_zone->shm.log = cf->cycle->log; - shm_zone->shm.size = size; - shm_zone->shm.name = *name; - shm_zone->shm.exists = 0; - shm_zone->init = NULL; - shm_zone->tag = tag; - shm_zone->noreuse = 0; - - return shm_zone; -} - - -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:%ui", n); - - break; - } - } - - if (found) { - live = 1; - continue; - } - - ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "clean old cycle: %ui", i); - - ngx_destroy_pool(cycle[i]->pool); - cycle[i] = NULL; - } - - ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, "old cycles status: %ui", live); - - if (live) { - ngx_add_timer(ev, 30000); - - } else { - ngx_destroy_pool(ngx_temp_pool); - ngx_temp_pool = NULL; - ngx_old_cycles.nelts = 0; - } -} - - -void -ngx_set_shutdown_timer(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->shutdown_timeout) { - ngx_shutdown_event.handler = ngx_shutdown_timer_handler; - ngx_shutdown_event.data = cycle; - ngx_shutdown_event.log = cycle->log; - ngx_shutdown_event.cancelable = 1; - - ngx_add_timer(&ngx_shutdown_event, ccf->shutdown_timeout); - } -} - - -static void -ngx_shutdown_timer_handler(ngx_event_t *ev) -{ - ngx_uint_t i; - ngx_cycle_t *cycle; - ngx_connection_t *c; - - cycle = ev->data; - - c = cycle->connections; - - for (i = 0; i < cycle->connection_n; i++) { - - if (c[i].fd == (ngx_socket_t) -1 - || c[i].read == NULL - || c[i].read->accept - || c[i].read->channel - || c[i].read->resolver) - { - continue; - } - - ngx_log_debug1(NGX_LOG_DEBUG_CORE, ev->log, 0, - "*%uA shutdown timeout", c[i].number); - - c[i].close = 1; - c[i].error = 1; - - c[i].read->handler(c[i].read); - } -} |