Mercurial > hg > nginx
view src/core/nginx.c @ 2219:fb84e3e95841
set listen configuration to default server,
this fixes the case, when default server is not the first one
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Fri, 29 Aug 2008 13:43:38 +0000 |
parents | 01b71aa095cc |
children | f62751dab60d |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> #include <nginx.h> static ngx_int_t ngx_add_inherited_sockets(ngx_cycle_t *cycle); static ngx_int_t ngx_getopt(ngx_cycle_t *cycle, int argc, char *const *argv); 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 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_conf_set_num_slot, 0, offsetof(ngx_core_conf_t, worker_processes), 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_size_slot, 0, offsetof(ngx_core_conf_t, rlimit_core), NULL }, { ngx_string("worker_rlimit_sigpending"), NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, 0, offsetof(ngx_core_conf_t, rlimit_sigpending), 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 }, #if (NGX_THREADS) { ngx_string("worker_threads"), NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, ngx_conf_set_num_slot, 0, offsetof(ngx_core_conf_t, worker_threads), NULL }, { ngx_string("thread_stack_size"), NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, ngx_conf_set_size_slot, 0, offsetof(ngx_core_conf_t, thread_stack_size), NULL }, #endif 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 }; ngx_uint_t ngx_max_module; static ngx_uint_t ngx_show_version; static ngx_uint_t ngx_show_configure; static char **ngx_os_environ; int ngx_cdecl main(int argc, char *const *argv) { ngx_int_t i; ngx_log_t *log; ngx_cycle_t *cycle, init_cycle; ngx_core_conf_t *ccf; #if (NGX_FREEBSD) ngx_debug_init(); #endif /* TODO */ ngx_max_sockets = -1; ngx_time_init(); #if (NGX_PCRE) ngx_regex_init(); #endif ngx_pid = ngx_getpid(); log = ngx_log_init(); if (log == NULL) { return 1; } /* STUB */ #if (NGX_OPENSSL) ngx_ssl_init(log); #endif /* init_cycle->log is required for signal handlers and ngx_getopt() */ 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_getopt(&init_cycle, argc, ngx_argv) != NGX_OK) { return 1; } if (ngx_show_version) { ngx_write_fd(ngx_stderr_fileno, "nginx version: " NGINX_VER CRLF, sizeof("nginx version: " NGINX_VER CRLF) - 1); if (ngx_show_configure) { #ifdef NGX_COMPILER ngx_write_fd(ngx_stderr_fileno, "built by " NGX_COMPILER CRLF, sizeof("built by " NGX_COMPILER CRLF) - 1); #endif #ifndef __WATCOMC__ /* OpenWatcomC could not build the long NGX_CONFIGURE string */ ngx_write_fd(ngx_stderr_fileno, "configure arguments: " NGX_CONFIGURE CRLF, sizeof("configure arguments :" NGX_CONFIGURE CRLF) - 1); #endif } if (!ngx_test_config) { return 0; } } if (ngx_test_config) { log->log_level = NGX_LOG_INFO; } 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; } ngx_max_module = 0; for (i = 0; ngx_modules[i]; i++) { ngx_modules[i]->index = ngx_max_module++; } cycle = ngx_init_cycle(&init_cycle); if (cycle == NULL) { if (ngx_test_config) { ngx_log_error(NGX_LOG_EMERG, log, 0, "the configuration file %s test failed", init_cycle.conf_file.data); } return 1; } if (ngx_test_config) { ngx_log_error(NGX_LOG_INFO, log, 0, "the configuration file %s was tested successfully", cycle->conf_file.data); return 0; } ngx_os_status(cycle->log); ngx_cycle = cycle; ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module); ngx_process = ccf->master ? NGX_PROCESS_MASTER : NGX_PROCESS_SINGLE; #if (NGX_WIN32) #if 0 TODO: if (ccf->run_as_service) { if (ngx_service(cycle->log) != NGX_OK) { return 1; } return 0; } #endif #else 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_create_pidfile(&ccf->pid, cycle->log) != NGX_OK) { return 1; } #endif if (ngx_process == NGX_PROCESS_MASTER) { ngx_master_process_cycle(cycle); } else { ngx_single_process_cycle(cycle); } return 0; } 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_ERROR) { 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; } } 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; 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); *last = n; } else { env = ngx_palloc(cycle->pool, (n + 1) * sizeof(char *)); } if (env == NULL) { return NULL; } 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; } 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; 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); 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_OK) { 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_OK) { ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, ngx_rename_file_n " %s back to %s failed after " "the try to execute the 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_getopt(ngx_cycle_t *cycle, int argc, char *const *argv) { ngx_int_t i; for (i = 1; i < argc; i++) { if (argv[i][0] != '-') { ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "invalid option: \"%s\"", argv[i]); return NGX_ERROR; } switch (argv[i][1]) { 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 'c': if (argv[i + 1] == NULL) { ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "the option \"-c\" requires file name"); return NGX_ERROR; } cycle->conf_file.data = (u_char *) argv[++i]; cycle->conf_file.len = ngx_strlen(cycle->conf_file.data); break; case 'g': if (argv[i + 1] == NULL) { ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "the option \"-g\" requires parameter"); return NGX_ERROR; } cycle->conf_param.data = (u_char *) argv[++i]; cycle->conf_param.len = ngx_strlen(cycle->conf_param.data); break; default: ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "invalid option: \"%s\"", argv[i]); return NGX_ERROR; } } if (cycle->conf_file.data == NULL) { cycle->conf_file.len = sizeof(NGX_CONF_PATH) - 1; cycle->conf_file.data = (u_char *) NGX_CONF_PATH; } 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 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 pcalloc() * * ccf->pid = NULL; * ccf->oldpid = NULL; * ccf->priority = 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->worker_processes = NGX_CONF_UNSET; ccf->debug_points = NGX_CONF_UNSET; ccf->rlimit_nofile = NGX_CONF_UNSET; ccf->rlimit_core = NGX_CONF_UNSET_SIZE; ccf->rlimit_sigpending = NGX_CONF_UNSET; ccf->user = (ngx_uid_t) NGX_CONF_UNSET_UINT; ccf->group = (ngx_gid_t) NGX_CONF_UNSET_UINT; #if (NGX_THREADS) ccf->worker_threads = NGX_CONF_UNSET; ccf->thread_stack_size = NGX_CONF_UNSET_SIZE; #endif 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_value(ccf->worker_processes, 1); ngx_conf_init_value(ccf->debug_points, 0); #if (NGX_HAVE_SCHED_SETAFFINITY) if (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, "number of the \"worker_processes\" is not equal to " "the number of the \"worker_cpu_affinity\" mask, " "using last mask for remaining worker processes"); } #endif #if (NGX_THREADS) ngx_conf_init_value(ccf->worker_threads, 0); ngx_threads_n = ccf->worker_threads; ngx_conf_init_size_value(ccf->thread_stack_size, 2 * 1024 * 1024); #endif #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->pid.len == 0) { ccf->pid.len = sizeof(NGX_PID_PATH) - 1; ccf->pid.data = (u_char *) NGX_PID_PATH; } if (ngx_conf_full_name(cycle, &ccf->pid, 0) == NGX_ERROR) { 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 (ccf->lock_file.len == 0) { ccf->lock_file.len = sizeof(NGX_LOCK_PATH) - 1; ccf->lock_file.data = (u_char *) NGX_LOCK_PATH; } if (ngx_conf_full_name(cycle, &ccf->lock_file, 0) == NGX_ERROR) { 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 = (ngx_str_t *) 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_SCHED_SETAFFINITY) ngx_core_conf_t *ccf = conf; u_char ch; u_long *mask; ngx_str_t *value; ngx_uint_t i, n; if (ccf->cpu_affinity) { return "is duplicate"; } mask = ngx_palloc(cf->pool, (cf->args->nelts - 1) * sizeof(long)); if (mask == NULL) { return NGX_CONF_ERROR; } ccf->cpu_affinity_n = cf->args->nelts - 1; ccf->cpu_affinity = mask; value = cf->args->elts; for (n = 1; n < cf->args->nelts; n++) { if (value[n].len > 32) { ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "\"worker_cpu_affinity\" supports up to 32 CPU only"); return NGX_CONF_ERROR; } mask[n - 1] = 0; for (i = 0; i < value[n].len; i++) { ch = value[n].data[i]; if (ch == ' ') { continue; } mask[n - 1] <<= 1; if (ch == '0') { continue; } if (ch == '1') { mask[n - 1] |= 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; } u_long ngx_get_cpu_affinity(ngx_uint_t n) { ngx_core_conf_t *ccf; ccf = (ngx_core_conf_t *) ngx_get_conf(ngx_cycle->conf_ctx, ngx_core_module); if (ccf->cpu_affinity == NULL) { return 0; } if (ccf->cpu_affinity_n > n) { return ccf->cpu_affinity[n]; } return ccf->cpu_affinity[ccf->cpu_affinity_n - 1]; }