diff options
Diffstat (limited to 'app/nginx/src/core/nginx.c')
| -rw-r--r-- | app/nginx/src/core/nginx.c | 1583 |
1 files changed, 0 insertions, 1583 deletions
diff --git a/app/nginx/src/core/nginx.c b/app/nginx/src/core/nginx.c deleted file mode 100644 index abaa50d..0000000 --- a/app/nginx/src/core/nginx.c +++ /dev/null @@ -1,1583 +0,0 @@ - -/* - * Copyright (C) Igor Sysoev - * Copyright (C) Nginx, Inc. - */ - - -#include <ngx_config.h> -#include <ngx_core.h> -#include <nginx.h> - - -static void ngx_show_version_info(void); -static ngx_int_t ngx_add_inherited_sockets(ngx_cycle_t *cycle); -static void ngx_cleanup_environment(void *data); -static ngx_int_t ngx_get_options(int argc, char *const *argv); -static ngx_int_t ngx_process_options(ngx_cycle_t *cycle); -static ngx_int_t ngx_save_argv(ngx_cycle_t *cycle, int argc, char *const *argv); -static void *ngx_core_module_create_conf(ngx_cycle_t *cycle); -static char *ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf); -static char *ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); -static char *ngx_set_env(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); -static char *ngx_set_priority(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); -static char *ngx_set_cpu_affinity(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); -static char *ngx_set_worker_processes(ngx_conf_t *cf, ngx_command_t *cmd, - void *conf); -static char *ngx_load_module(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); -#if (NGX_HAVE_DLOPEN) -static void ngx_unload_module(void *data); -#endif - - -static ngx_conf_enum_t ngx_debug_points[] = { - { ngx_string("stop"), NGX_DEBUG_POINTS_STOP }, - { ngx_string("abort"), NGX_DEBUG_POINTS_ABORT }, - { ngx_null_string, 0 } -}; - - -static ngx_command_t ngx_core_commands[] = { - - { ngx_string("daemon"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_FLAG, - ngx_conf_set_flag_slot, - 0, - offsetof(ngx_core_conf_t, daemon), - NULL }, - - { ngx_string("master_process"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_FLAG, - ngx_conf_set_flag_slot, - 0, - offsetof(ngx_core_conf_t, master), - NULL }, - - { ngx_string("timer_resolution"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, - ngx_conf_set_msec_slot, - 0, - offsetof(ngx_core_conf_t, timer_resolution), - NULL }, - - { ngx_string("pid"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, - ngx_conf_set_str_slot, - 0, - offsetof(ngx_core_conf_t, pid), - NULL }, - - { ngx_string("lock_file"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, - ngx_conf_set_str_slot, - 0, - offsetof(ngx_core_conf_t, lock_file), - NULL }, - - { ngx_string("worker_processes"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, - ngx_set_worker_processes, - 0, - 0, - NULL }, - - { ngx_string("debug_points"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, - ngx_conf_set_enum_slot, - 0, - offsetof(ngx_core_conf_t, debug_points), - &ngx_debug_points }, - - { ngx_string("user"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE12, - ngx_set_user, - 0, - 0, - NULL }, - - { ngx_string("worker_priority"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, - ngx_set_priority, - 0, - 0, - NULL }, - - { ngx_string("worker_cpu_affinity"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_1MORE, - ngx_set_cpu_affinity, - 0, - 0, - NULL }, - - { ngx_string("worker_rlimit_nofile"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, - ngx_conf_set_num_slot, - 0, - offsetof(ngx_core_conf_t, rlimit_nofile), - NULL }, - - { ngx_string("worker_rlimit_core"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, - ngx_conf_set_off_slot, - 0, - offsetof(ngx_core_conf_t, rlimit_core), - NULL }, - - { ngx_string("worker_shutdown_timeout"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, - ngx_conf_set_msec_slot, - 0, - offsetof(ngx_core_conf_t, shutdown_timeout), - NULL }, - - { ngx_string("working_directory"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, - ngx_conf_set_str_slot, - 0, - offsetof(ngx_core_conf_t, working_directory), - NULL }, - - { ngx_string("env"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, - ngx_set_env, - 0, - 0, - NULL }, - - { ngx_string("load_module"), - NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, - ngx_load_module, - 0, - 0, - NULL }, - - ngx_null_command -}; - - -static ngx_core_module_t ngx_core_module_ctx = { - ngx_string("core"), - ngx_core_module_create_conf, - ngx_core_module_init_conf -}; - - -ngx_module_t ngx_core_module = { - NGX_MODULE_V1, - &ngx_core_module_ctx, /* module context */ - ngx_core_commands, /* module directives */ - NGX_CORE_MODULE, /* module type */ - NULL, /* init master */ - NULL, /* init module */ - NULL, /* init process */ - NULL, /* init thread */ - NULL, /* exit thread */ - NULL, /* exit process */ - NULL, /* exit master */ - NGX_MODULE_V1_PADDING -}; - - -static ngx_uint_t ngx_show_help; -static ngx_uint_t ngx_show_version; -static ngx_uint_t ngx_show_configure; -static u_char *ngx_prefix; -static u_char *ngx_conf_file; -static u_char *ngx_conf_params; -static char *ngx_signal; - - -static char **ngx_os_environ; - - -int ngx_cdecl -main(int argc, char *const *argv) -{ - ngx_buf_t *b; - ngx_log_t *log; - ngx_uint_t i; - ngx_cycle_t *cycle, init_cycle; - ngx_conf_dump_t *cd; - ngx_core_conf_t *ccf; - - ngx_debug_init(); - - if (ngx_strerror_init() != NGX_OK) { - return 1; - } - - if (ngx_get_options(argc, argv) != NGX_OK) { - return 1; - } - - if (ngx_show_version) { - ngx_show_version_info(); - - if (!ngx_test_config) { - return 0; - } - } - - /* TODO */ ngx_max_sockets = -1; - - ngx_time_init(); - -#if (NGX_PCRE) - ngx_regex_init(); -#endif - - ngx_pid = ngx_getpid(); - - log = ngx_log_init(ngx_prefix); - if (log == NULL) { - return 1; - } - - /* STUB */ -#if (NGX_OPENSSL) - ngx_ssl_init(log); -#endif - - /* - * init_cycle->log is required for signal handlers and - * ngx_process_options() - */ - - ngx_memzero(&init_cycle, sizeof(ngx_cycle_t)); - init_cycle.log = log; - ngx_cycle = &init_cycle; - - init_cycle.pool = ngx_create_pool(1024, log); - if (init_cycle.pool == NULL) { - return 1; - } - - if (ngx_save_argv(&init_cycle, argc, argv) != NGX_OK) { - return 1; - } - - if (ngx_process_options(&init_cycle) != NGX_OK) { - return 1; - } - - if (ngx_os_init(log) != NGX_OK) { - return 1; - } - - /* - * ngx_crc32_table_init() requires ngx_cacheline_size set in ngx_os_init() - */ - - if (ngx_crc32_table_init() != NGX_OK) { - return 1; - } - - if (ngx_add_inherited_sockets(&init_cycle) != NGX_OK) { - return 1; - } - - if (ngx_preinit_modules() != NGX_OK) { - return 1; - } - - cycle = ngx_init_cycle(&init_cycle); - if (cycle == NULL) { - if (ngx_test_config) { - ngx_log_stderr(0, "configuration file %s test failed", - init_cycle.conf_file.data); - } - - return 1; - } - - if (ngx_test_config) { - if (!ngx_quiet_mode) { - ngx_log_stderr(0, "configuration file %s test is successful", - cycle->conf_file.data); - } - - if (ngx_dump_config) { - cd = cycle->config_dump.elts; - - for (i = 0; i < cycle->config_dump.nelts; i++) { - - ngx_write_stdout("# configuration file "); - (void) ngx_write_fd(ngx_stdout, cd[i].name.data, - cd[i].name.len); - ngx_write_stdout(":" NGX_LINEFEED); - - b = cd[i].buffer; - - (void) ngx_write_fd(ngx_stdout, b->pos, b->last - b->pos); - ngx_write_stdout(NGX_LINEFEED); - } - } - - return 0; - } - - if (ngx_signal) { - return ngx_signal_process(cycle, ngx_signal); - } - - ngx_os_status(cycle->log); - - ngx_cycle = cycle; - - ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); - - if (ccf->master && ngx_process == NGX_PROCESS_SINGLE) { - ngx_process = NGX_PROCESS_MASTER; - } - -#if !(NGX_WIN32) - - if (ngx_init_signals(cycle->log) != NGX_OK) { - return 1; - } - - if (!ngx_inherited && ccf->daemon) { - if (ngx_daemon(cycle->log) != NGX_OK) { - return 1; - } - - ngx_daemonized = 1; - } - - if (ngx_inherited) { - ngx_daemonized = 1; - } - -#endif - - if (ngx_create_pidfile(&ccf->pid, cycle->log) != NGX_OK) { - return 1; - } - - if (ngx_log_redirect_stderr(cycle) != NGX_OK) { - return 1; - } - - if (log->file->fd != ngx_stderr) { - if (ngx_close_file(log->file->fd) == NGX_FILE_ERROR) { - ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, - ngx_close_file_n " built-in log failed"); - } - } - - ngx_use_stderr = 0; - - if (ngx_process == NGX_PROCESS_SINGLE) { - ngx_single_process_cycle(cycle); - - } else { - ngx_master_process_cycle(cycle); - } - - return 0; -} - - -static void -ngx_show_version_info(void) -{ - ngx_write_stderr("nginx version: " NGINX_VER_BUILD NGX_LINEFEED); - - if (ngx_show_help) { - ngx_write_stderr( - "Usage: nginx [-?hvVtTq] [-s signal] [-c filename] " - "[-p prefix] [-g directives]" NGX_LINEFEED - NGX_LINEFEED - "Options:" NGX_LINEFEED - " -?,-h : this help" NGX_LINEFEED - " -v : show version and exit" NGX_LINEFEED - " -V : show version and configure options then exit" - NGX_LINEFEED - " -t : test configuration and exit" NGX_LINEFEED - " -T : test configuration, dump it and exit" - NGX_LINEFEED - " -q : suppress non-error messages " - "during configuration testing" NGX_LINEFEED - " -s signal : send signal to a master process: " - "stop, quit, reopen, reload" NGX_LINEFEED -#ifdef NGX_PREFIX - " -p prefix : set prefix path (default: " NGX_PREFIX ")" - NGX_LINEFEED -#else - " -p prefix : set prefix path (default: NONE)" NGX_LINEFEED -#endif - " -c filename : set configuration file (default: " NGX_CONF_PATH - ")" NGX_LINEFEED - " -g directives : set global directives out of configuration " - "file" NGX_LINEFEED NGX_LINEFEED - ); - } - - if (ngx_show_configure) { - -#ifdef NGX_COMPILER - ngx_write_stderr("built by " NGX_COMPILER NGX_LINEFEED); -#endif - -#if (NGX_SSL) - if (ngx_strcmp(ngx_ssl_version(), OPENSSL_VERSION_TEXT) == 0) { - ngx_write_stderr("built with " OPENSSL_VERSION_TEXT NGX_LINEFEED); - } else { - ngx_write_stderr("built with " OPENSSL_VERSION_TEXT - " (running with "); - ngx_write_stderr((char *) (uintptr_t) ngx_ssl_version()); - ngx_write_stderr(")" NGX_LINEFEED); - } -#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME - ngx_write_stderr("TLS SNI support enabled" NGX_LINEFEED); -#else - ngx_write_stderr("TLS SNI support disabled" NGX_LINEFEED); -#endif -#endif - - ngx_write_stderr("configure arguments:" NGX_CONFIGURE NGX_LINEFEED); - } -} - - -static ngx_int_t -ngx_add_inherited_sockets(ngx_cycle_t *cycle) -{ - u_char *p, *v, *inherited; - ngx_int_t s; - ngx_listening_t *ls; - - inherited = (u_char *) getenv(NGINX_VAR); - - if (inherited == NULL) { - return NGX_OK; - } - - ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0, - "using inherited sockets from \"%s\"", inherited); - - if (ngx_array_init(&cycle->listening, cycle->pool, 10, - sizeof(ngx_listening_t)) - != NGX_OK) - { - return NGX_ERROR; - } - - for (p = inherited, v = p; *p; p++) { - if (*p == ':' || *p == ';') { - s = ngx_atoi(v, p - v); - if (s == NGX_ERROR) { - ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, - "invalid socket number \"%s\" in " NGINX_VAR - " environment variable, ignoring the rest" - " of the variable", v); - break; - } - - v = p + 1; - - ls = ngx_array_push(&cycle->listening); - if (ls == NULL) { - return NGX_ERROR; - } - - ngx_memzero(ls, sizeof(ngx_listening_t)); - - ls->fd = (ngx_socket_t) s; - } - } - - if (v != p) { - ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, - "invalid socket number \"%s\" in " NGINX_VAR - " environment variable, ignoring", v); - } - - ngx_inherited = 1; - - return ngx_set_inherited_sockets(cycle); -} - - -char ** -ngx_set_environment(ngx_cycle_t *cycle, ngx_uint_t *last) -{ - char **p, **env; - ngx_str_t *var; - ngx_uint_t i, n; - ngx_core_conf_t *ccf; - ngx_pool_cleanup_t *cln; - - ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); - - if (last == NULL && ccf->environment) { - return ccf->environment; - } - - var = ccf->env.elts; - - for (i = 0; i < ccf->env.nelts; i++) { - if (ngx_strcmp(var[i].data, "TZ") == 0 - || ngx_strncmp(var[i].data, "TZ=", 3) == 0) - { - goto tz_found; - } - } - - var = ngx_array_push(&ccf->env); - if (var == NULL) { - return NULL; - } - - var->len = 2; - var->data = (u_char *) "TZ"; - - var = ccf->env.elts; - -tz_found: - - n = 0; - - for (i = 0; i < ccf->env.nelts; i++) { - - if (var[i].data[var[i].len] == '=') { - n++; - continue; - } - - for (p = ngx_os_environ; *p; p++) { - - if (ngx_strncmp(*p, var[i].data, var[i].len) == 0 - && (*p)[var[i].len] == '=') - { - n++; - break; - } - } - } - - if (last) { - env = ngx_alloc((*last + n + 1) * sizeof(char *), cycle->log); - if (env == NULL) { - return NULL; - } - - *last = n; - - } else { - cln = ngx_pool_cleanup_add(cycle->pool, 0); - if (cln == NULL) { - return NULL; - } - - env = ngx_alloc((n + 1) * sizeof(char *), cycle->log); - if (env == NULL) { - return NULL; - } - - cln->handler = ngx_cleanup_environment; - cln->data = env; - } - - n = 0; - - for (i = 0; i < ccf->env.nelts; i++) { - - if (var[i].data[var[i].len] == '=') { - env[n++] = (char *) var[i].data; - continue; - } - - for (p = ngx_os_environ; *p; p++) { - - if (ngx_strncmp(*p, var[i].data, var[i].len) == 0 - && (*p)[var[i].len] == '=') - { - env[n++] = *p; - break; - } - } - } - - env[n] = NULL; - - if (last == NULL) { - ccf->environment = env; - environ = env; - } - - return env; -} - - -static void -ngx_cleanup_environment(void *data) -{ - char **env = data; - - if (environ == env) { - - /* - * if the environment is still used, as it happens on exit, - * the only option is to leak it - */ - - return; - } - - ngx_free(env); -} - - -ngx_pid_t -ngx_exec_new_binary(ngx_cycle_t *cycle, char *const *argv) -{ - char **env, *var; - u_char *p; - ngx_uint_t i, n; - ngx_pid_t pid; - ngx_exec_ctx_t ctx; - ngx_core_conf_t *ccf; - ngx_listening_t *ls; - - ngx_memzero(&ctx, sizeof(ngx_exec_ctx_t)); - - ctx.path = argv[0]; - ctx.name = "new binary process"; - ctx.argv = argv; - - n = 2; - env = ngx_set_environment(cycle, &n); - if (env == NULL) { - return NGX_INVALID_PID; - } - - var = ngx_alloc(sizeof(NGINX_VAR) - + cycle->listening.nelts * (NGX_INT32_LEN + 1) + 2, - cycle->log); - if (var == NULL) { - ngx_free(env); - return NGX_INVALID_PID; - } - - p = ngx_cpymem(var, NGINX_VAR "=", sizeof(NGINX_VAR)); - - ls = cycle->listening.elts; - for (i = 0; i < cycle->listening.nelts; i++) { - p = ngx_sprintf(p, "%ud;", ls[i].fd); - } - - *p = '\0'; - - env[n++] = var; - -#if (NGX_SETPROCTITLE_USES_ENV) - - /* allocate the spare 300 bytes for the new binary process title */ - - env[n++] = "SPARE=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" - "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" - "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" - "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" - "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"; - -#endif - - env[n] = NULL; - -#if (NGX_DEBUG) - { - char **e; - for (e = env; *e; e++) { - ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, "env: %s", *e); - } - } -#endif - - ctx.envp = (char *const *) env; - - ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); - - if (ngx_rename_file(ccf->pid.data, ccf->oldpid.data) == NGX_FILE_ERROR) { - ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, - ngx_rename_file_n " %s to %s failed " - "before executing new binary process \"%s\"", - ccf->pid.data, ccf->oldpid.data, argv[0]); - - ngx_free(env); - ngx_free(var); - - return NGX_INVALID_PID; - } - - pid = ngx_execute(cycle, &ctx); - - if (pid == NGX_INVALID_PID) { - if (ngx_rename_file(ccf->oldpid.data, ccf->pid.data) - == NGX_FILE_ERROR) - { - ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, - ngx_rename_file_n " %s back to %s failed after " - "an attempt to execute new binary process \"%s\"", - ccf->oldpid.data, ccf->pid.data, argv[0]); - } - } - - ngx_free(env); - ngx_free(var); - - return pid; -} - - -static ngx_int_t -ngx_get_options(int argc, char *const *argv) -{ - u_char *p; - ngx_int_t i; - - for (i = 1; i < argc; i++) { - - p = (u_char *) argv[i]; - - if (*p++ != '-') { - ngx_log_stderr(0, "invalid option: \"%s\"", argv[i]); - return NGX_ERROR; - } - - while (*p) { - - switch (*p++) { - - case '?': - case 'h': - ngx_show_version = 1; - ngx_show_help = 1; - break; - - case 'v': - ngx_show_version = 1; - break; - - case 'V': - ngx_show_version = 1; - ngx_show_configure = 1; - break; - - case 't': - ngx_test_config = 1; - break; - - case 'T': - ngx_test_config = 1; - ngx_dump_config = 1; - break; - - case 'q': - ngx_quiet_mode = 1; - break; - - case 'p': - if (*p) { - ngx_prefix = p; - goto next; - } - - if (argv[++i]) { - ngx_prefix = (u_char *) argv[i]; - goto next; - } - - ngx_log_stderr(0, "option \"-p\" requires directory name"); - return NGX_ERROR; - - case 'c': - if (*p) { - ngx_conf_file = p; - goto next; - } - - if (argv[++i]) { - ngx_conf_file = (u_char *) argv[i]; - goto next; - } - - ngx_log_stderr(0, "option \"-c\" requires file name"); - return NGX_ERROR; - - case 'g': - if (*p) { - ngx_conf_params = p; - goto next; - } - - if (argv[++i]) { - ngx_conf_params = (u_char *) argv[i]; - goto next; - } - - ngx_log_stderr(0, "option \"-g\" requires parameter"); - return NGX_ERROR; - - case 's': - if (*p) { - ngx_signal = (char *) p; - - } else if (argv[++i]) { - ngx_signal = argv[i]; - - } else { - ngx_log_stderr(0, "option \"-s\" requires parameter"); - return NGX_ERROR; - } - - if (ngx_strcmp(ngx_signal, "stop") == 0 - || ngx_strcmp(ngx_signal, "quit") == 0 - || ngx_strcmp(ngx_signal, "reopen") == 0 - || ngx_strcmp(ngx_signal, "reload") == 0) - { - ngx_process = NGX_PROCESS_SIGNALLER; - goto next; - } - - ngx_log_stderr(0, "invalid option: \"-s %s\"", ngx_signal); - return NGX_ERROR; - - default: - ngx_log_stderr(0, "invalid option: \"%c\"", *(p - 1)); - return NGX_ERROR; - } - } - - next: - - continue; - } - - return NGX_OK; -} - - -static ngx_int_t -ngx_save_argv(ngx_cycle_t *cycle, int argc, char *const *argv) -{ -#if (NGX_FREEBSD) - - ngx_os_argv = (char **) argv; - ngx_argc = argc; - ngx_argv = (char **) argv; - -#else - size_t len; - ngx_int_t i; - - ngx_os_argv = (char **) argv; - ngx_argc = argc; - - ngx_argv = ngx_alloc((argc + 1) * sizeof(char *), cycle->log); - if (ngx_argv == NULL) { - return NGX_ERROR; - } - - for (i = 0; i < argc; i++) { - len = ngx_strlen(argv[i]) + 1; - - ngx_argv[i] = ngx_alloc(len, cycle->log); - if (ngx_argv[i] == NULL) { - return NGX_ERROR; - } - - (void) ngx_cpystrn((u_char *) ngx_argv[i], (u_char *) argv[i], len); - } - - ngx_argv[i] = NULL; - -#endif - - ngx_os_environ = environ; - - return NGX_OK; -} - - -static ngx_int_t -ngx_process_options(ngx_cycle_t *cycle) -{ - u_char *p; - size_t len; - - if (ngx_prefix) { - len = ngx_strlen(ngx_prefix); - p = ngx_prefix; - - if (len && !ngx_path_separator(p[len - 1])) { - p = ngx_pnalloc(cycle->pool, len + 1); - if (p == NULL) { - return NGX_ERROR; - } - - ngx_memcpy(p, ngx_prefix, len); - p[len++] = '/'; - } - - cycle->conf_prefix.len = len; - cycle->conf_prefix.data = p; - cycle->prefix.len = len; - cycle->prefix.data = p; - - } else { - -#ifndef NGX_PREFIX - - p = ngx_pnalloc(cycle->pool, NGX_MAX_PATH); - if (p == NULL) { - return NGX_ERROR; - } - - if (ngx_getcwd(p, NGX_MAX_PATH) == 0) { - ngx_log_stderr(ngx_errno, "[emerg]: " ngx_getcwd_n " failed"); - return NGX_ERROR; - } - - len = ngx_strlen(p); - - p[len++] = '/'; - - cycle->conf_prefix.len = len; - cycle->conf_prefix.data = p; - cycle->prefix.len = len; - cycle->prefix.data = p; - -#else - -#ifdef NGX_CONF_PREFIX - ngx_str_set(&cycle->conf_prefix, NGX_CONF_PREFIX); -#else - ngx_str_set(&cycle->conf_prefix, NGX_PREFIX); -#endif - ngx_str_set(&cycle->prefix, NGX_PREFIX); - -#endif - } - - if (ngx_conf_file) { - cycle->conf_file.len = ngx_strlen(ngx_conf_file); - cycle->conf_file.data = ngx_conf_file; - - } else { - ngx_str_set(&cycle->conf_file, NGX_CONF_PATH); - } - - if (ngx_conf_full_name(cycle, &cycle->conf_file, 0) != NGX_OK) { - return NGX_ERROR; - } - - for (p = cycle->conf_file.data + cycle->conf_file.len - 1; - p > cycle->conf_file.data; - p--) - { - if (ngx_path_separator(*p)) { - cycle->conf_prefix.len = p - ngx_cycle->conf_file.data + 1; - cycle->conf_prefix.data = ngx_cycle->conf_file.data; - break; - } - } - - if (ngx_conf_params) { - cycle->conf_param.len = ngx_strlen(ngx_conf_params); - cycle->conf_param.data = ngx_conf_params; - } - - if (ngx_test_config) { - cycle->log->log_level = NGX_LOG_INFO; - } - - return NGX_OK; -} - - -static void * -ngx_core_module_create_conf(ngx_cycle_t *cycle) -{ - ngx_core_conf_t *ccf; - - ccf = ngx_pcalloc(cycle->pool, sizeof(ngx_core_conf_t)); - if (ccf == NULL) { - return NULL; - } - - /* - * set by ngx_pcalloc() - * - * ccf->pid = NULL; - * ccf->oldpid = NULL; - * ccf->priority = 0; - * ccf->cpu_affinity_auto = 0; - * ccf->cpu_affinity_n = 0; - * ccf->cpu_affinity = NULL; - */ - - ccf->daemon = NGX_CONF_UNSET; - ccf->master = NGX_CONF_UNSET; - ccf->timer_resolution = NGX_CONF_UNSET_MSEC; - ccf->shutdown_timeout = NGX_CONF_UNSET_MSEC; - - ccf->worker_processes = NGX_CONF_UNSET; - ccf->debug_points = NGX_CONF_UNSET; - - ccf->rlimit_nofile = NGX_CONF_UNSET; - ccf->rlimit_core = NGX_CONF_UNSET; - - ccf->user = (ngx_uid_t) NGX_CONF_UNSET_UINT; - ccf->group = (ngx_gid_t) NGX_CONF_UNSET_UINT; - - if (ngx_array_init(&ccf->env, cycle->pool, 1, sizeof(ngx_str_t)) - != NGX_OK) - { - return NULL; - } - - return ccf; -} - - -static char * -ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf) -{ - ngx_core_conf_t *ccf = conf; - - ngx_conf_init_value(ccf->daemon, 1); - ngx_conf_init_value(ccf->master, 1); - ngx_conf_init_msec_value(ccf->timer_resolution, 0); - ngx_conf_init_msec_value(ccf->shutdown_timeout, 0); - - ngx_conf_init_value(ccf->worker_processes, 1); - ngx_conf_init_value(ccf->debug_points, 0); - -#if (NGX_HAVE_CPU_AFFINITY) - - if (!ccf->cpu_affinity_auto - && ccf->cpu_affinity_n - && ccf->cpu_affinity_n != 1 - && ccf->cpu_affinity_n != (ngx_uint_t) ccf->worker_processes) - { - ngx_log_error(NGX_LOG_WARN, cycle->log, 0, - "the number of \"worker_processes\" is not equal to " - "the number of \"worker_cpu_affinity\" masks, " - "using last mask for remaining worker processes"); - } - -#endif - - - if (ccf->pid.len == 0) { - ngx_str_set(&ccf->pid, NGX_PID_PATH); - } - - if (ngx_conf_full_name(cycle, &ccf->pid, 0) != NGX_OK) { - return NGX_CONF_ERROR; - } - - ccf->oldpid.len = ccf->pid.len + sizeof(NGX_OLDPID_EXT); - - ccf->oldpid.data = ngx_pnalloc(cycle->pool, ccf->oldpid.len); - if (ccf->oldpid.data == NULL) { - return NGX_CONF_ERROR; - } - - ngx_memcpy(ngx_cpymem(ccf->oldpid.data, ccf->pid.data, ccf->pid.len), - NGX_OLDPID_EXT, sizeof(NGX_OLDPID_EXT)); - - -#if !(NGX_WIN32) - - if (ccf->user == (uid_t) NGX_CONF_UNSET_UINT && geteuid() == 0) { - struct group *grp; - struct passwd *pwd; - - ngx_set_errno(0); - pwd = getpwnam(NGX_USER); - if (pwd == NULL) { - ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, - "getpwnam(\"" NGX_USER "\") failed"); - return NGX_CONF_ERROR; - } - - ccf->username = NGX_USER; - ccf->user = pwd->pw_uid; - - ngx_set_errno(0); - grp = getgrnam(NGX_GROUP); - if (grp == NULL) { - ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, - "getgrnam(\"" NGX_GROUP "\") failed"); - return NGX_CONF_ERROR; - } - - ccf->group = grp->gr_gid; - } - - - if (ccf->lock_file.len == 0) { - ngx_str_set(&ccf->lock_file, NGX_LOCK_PATH); - } - - if (ngx_conf_full_name(cycle, &ccf->lock_file, 0) != NGX_OK) { - return NGX_CONF_ERROR; - } - - { - ngx_str_t lock_file; - - lock_file = cycle->old_cycle->lock_file; - - if (lock_file.len) { - lock_file.len--; - - if (ccf->lock_file.len != lock_file.len - || ngx_strncmp(ccf->lock_file.data, lock_file.data, lock_file.len) - != 0) - { - ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, - "\"lock_file\" could not be changed, ignored"); - } - - cycle->lock_file.len = lock_file.len + 1; - lock_file.len += sizeof(".accept"); - - cycle->lock_file.data = ngx_pstrdup(cycle->pool, &lock_file); - if (cycle->lock_file.data == NULL) { - return NGX_CONF_ERROR; - } - - } else { - cycle->lock_file.len = ccf->lock_file.len + 1; - cycle->lock_file.data = ngx_pnalloc(cycle->pool, - ccf->lock_file.len + sizeof(".accept")); - if (cycle->lock_file.data == NULL) { - return NGX_CONF_ERROR; - } - - ngx_memcpy(ngx_cpymem(cycle->lock_file.data, ccf->lock_file.data, - ccf->lock_file.len), - ".accept", sizeof(".accept")); - } - } - -#endif - - return NGX_CONF_OK; -} - - -static char * -ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ -#if (NGX_WIN32) - - ngx_conf_log_error(NGX_LOG_WARN, cf, 0, - "\"user\" is not supported, ignored"); - - return NGX_CONF_OK; - -#else - - ngx_core_conf_t *ccf = conf; - - char *group; - struct passwd *pwd; - struct group *grp; - ngx_str_t *value; - - if (ccf->user != (uid_t) NGX_CONF_UNSET_UINT) { - return "is duplicate"; - } - - if (geteuid() != 0) { - ngx_conf_log_error(NGX_LOG_WARN, cf, 0, - "the \"user\" directive makes sense only " - "if the master process runs " - "with super-user privileges, ignored"); - return NGX_CONF_OK; - } - - value = cf->args->elts; - - ccf->username = (char *) value[1].data; - - ngx_set_errno(0); - pwd = getpwnam((const char *) value[1].data); - if (pwd == NULL) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno, - "getpwnam(\"%s\") failed", value[1].data); - return NGX_CONF_ERROR; - } - - ccf->user = pwd->pw_uid; - - group = (char *) ((cf->args->nelts == 2) ? value[1].data : value[2].data); - - ngx_set_errno(0); - grp = getgrnam(group); - if (grp == NULL) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno, - "getgrnam(\"%s\") failed", group); - return NGX_CONF_ERROR; - } - - ccf->group = grp->gr_gid; - - return NGX_CONF_OK; - -#endif -} - - -static char * -ngx_set_env(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_core_conf_t *ccf = conf; - - ngx_str_t *value, *var; - ngx_uint_t i; - - var = ngx_array_push(&ccf->env); - if (var == NULL) { - return NGX_CONF_ERROR; - } - - value = cf->args->elts; - *var = value[1]; - - for (i = 0; i < value[1].len; i++) { - - if (value[1].data[i] == '=') { - - var->len = i; - - return NGX_CONF_OK; - } - } - - return NGX_CONF_OK; -} - - -static char * -ngx_set_priority(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_core_conf_t *ccf = conf; - - ngx_str_t *value; - ngx_uint_t n, minus; - - if (ccf->priority != 0) { - return "is duplicate"; - } - - value = cf->args->elts; - - if (value[1].data[0] == '-') { - n = 1; - minus = 1; - - } else if (value[1].data[0] == '+') { - n = 1; - minus = 0; - - } else { - n = 0; - minus = 0; - } - - ccf->priority = ngx_atoi(&value[1].data[n], value[1].len - n); - if (ccf->priority == NGX_ERROR) { - return "invalid number"; - } - - if (minus) { - ccf->priority = -ccf->priority; - } - - return NGX_CONF_OK; -} - - -static char * -ngx_set_cpu_affinity(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ -#if (NGX_HAVE_CPU_AFFINITY) - ngx_core_conf_t *ccf = conf; - - u_char ch, *p; - ngx_str_t *value; - ngx_uint_t i, n; - ngx_cpuset_t *mask; - - if (ccf->cpu_affinity) { - return "is duplicate"; - } - - mask = ngx_palloc(cf->pool, (cf->args->nelts - 1) * sizeof(ngx_cpuset_t)); - if (mask == NULL) { - return NGX_CONF_ERROR; - } - - ccf->cpu_affinity_n = cf->args->nelts - 1; - ccf->cpu_affinity = mask; - - value = cf->args->elts; - - if (ngx_strcmp(value[1].data, "auto") == 0) { - - if (cf->args->nelts > 3) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid number of arguments in " - "\"worker_cpu_affinity\" directive"); - return NGX_CONF_ERROR; - } - - ccf->cpu_affinity_auto = 1; - - CPU_ZERO(&mask[0]); - for (i = 0; i < (ngx_uint_t) ngx_min(ngx_ncpu, CPU_SETSIZE); i++) { - CPU_SET(i, &mask[0]); - } - - n = 2; - - } else { - n = 1; - } - - for ( /* void */ ; n < cf->args->nelts; n++) { - - if (value[n].len > CPU_SETSIZE) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "\"worker_cpu_affinity\" supports up to %d CPUs only", - CPU_SETSIZE); - return NGX_CONF_ERROR; - } - - i = 0; - CPU_ZERO(&mask[n - 1]); - - for (p = value[n].data + value[n].len - 1; - p >= value[n].data; - p--) - { - ch = *p; - - if (ch == ' ') { - continue; - } - - i++; - - if (ch == '0') { - continue; - } - - if (ch == '1') { - CPU_SET(i - 1, &mask[n - 1]); - continue; - } - - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "invalid character \"%c\" in \"worker_cpu_affinity\"", - ch); - return NGX_CONF_ERROR; - } - } - -#else - - ngx_conf_log_error(NGX_LOG_WARN, cf, 0, - "\"worker_cpu_affinity\" is not supported " - "on this platform, ignored"); -#endif - - return NGX_CONF_OK; -} - - -ngx_cpuset_t * -ngx_get_cpu_affinity(ngx_uint_t n) -{ -#if (NGX_HAVE_CPU_AFFINITY) - ngx_uint_t i, j; - ngx_cpuset_t *mask; - ngx_core_conf_t *ccf; - - static ngx_cpuset_t result; - - ccf = (ngx_core_conf_t *) ngx_get_conf(ngx_cycle->conf_ctx, - ngx_core_module); - - if (ccf->cpu_affinity == NULL) { - return NULL; - } - - if (ccf->cpu_affinity_auto) { - mask = &ccf->cpu_affinity[ccf->cpu_affinity_n - 1]; - - for (i = 0, j = n; /* void */ ; i++) { - - if (CPU_ISSET(i % CPU_SETSIZE, mask) && j-- == 0) { - break; - } - - if (i == CPU_SETSIZE && j == n) { - /* empty mask */ - return NULL; - } - - /* void */ - } - - CPU_ZERO(&result); - CPU_SET(i % CPU_SETSIZE, &result); - - return &result; - } - - if (ccf->cpu_affinity_n > n) { - return &ccf->cpu_affinity[n]; - } - - return &ccf->cpu_affinity[ccf->cpu_affinity_n - 1]; - -#else - - return NULL; - -#endif -} - - -static char * -ngx_set_worker_processes(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ - ngx_str_t *value; - ngx_core_conf_t *ccf; - - ccf = (ngx_core_conf_t *) conf; - - if (ccf->worker_processes != NGX_CONF_UNSET) { - return "is duplicate"; - } - - value = cf->args->elts; - - if (ngx_strcmp(value[1].data, "auto") == 0) { - ccf->worker_processes = ngx_ncpu; - return NGX_CONF_OK; - } - - ccf->worker_processes = ngx_atoi(value[1].data, value[1].len); - - if (ccf->worker_processes == NGX_ERROR) { - return "invalid value"; - } - - return NGX_CONF_OK; -} - - -static char * -ngx_load_module(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) -{ -#if (NGX_HAVE_DLOPEN) - void *handle; - char **names, **order; - ngx_str_t *value, file; - ngx_uint_t i; - ngx_module_t *module, **modules; - ngx_pool_cleanup_t *cln; - - if (cf->cycle->modules_used) { - return "is specified too late"; - } - - value = cf->args->elts; - - file = value[1]; - - if (ngx_conf_full_name(cf->cycle, &file, 0) != NGX_OK) { - return NGX_CONF_ERROR; - } - - cln = ngx_pool_cleanup_add(cf->cycle->pool, 0); - if (cln == NULL) { - return NGX_CONF_ERROR; - } - - handle = ngx_dlopen(file.data); - if (handle == NULL) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - ngx_dlopen_n " \"%s\" failed (%s)", - file.data, ngx_dlerror()); - return NGX_CONF_ERROR; - } - - cln->handler = ngx_unload_module; - cln->data = handle; - - modules = ngx_dlsym(handle, "ngx_modules"); - if (modules == NULL) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - ngx_dlsym_n " \"%V\", \"%s\" failed (%s)", - &value[1], "ngx_modules", ngx_dlerror()); - return NGX_CONF_ERROR; - } - - names = ngx_dlsym(handle, "ngx_module_names"); - if (names == NULL) { - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - ngx_dlsym_n " \"%V\", \"%s\" failed (%s)", - &value[1], "ngx_module_names", ngx_dlerror()); - return NGX_CONF_ERROR; - } - - order = ngx_dlsym(handle, "ngx_module_order"); - - for (i = 0; modules[i]; i++) { - module = modules[i]; - module->name = names[i]; - - if (ngx_add_module(cf, &file, module, order) != NGX_OK) { - return NGX_CONF_ERROR; - } - - ngx_log_debug2(NGX_LOG_DEBUG_CORE, cf->log, 0, "module: %s i:%ui", - module->name, module->index); - } - - return NGX_CONF_OK; - -#else - - ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, - "\"load_module\" is not supported " - "on this platform"); - return NGX_CONF_ERROR; - -#endif -} - - -#if (NGX_HAVE_DLOPEN) - -static void -ngx_unload_module(void *data) -{ - void *handle = data; - - if (ngx_dlclose(handle) != 0) { - ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0, - ngx_dlclose_n " failed (%s)", ngx_dlerror()); - } -} - -#endif |