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src/core/nginx.c - nginx-1.7.10
Global variables defined
Functions defined
Source code
- #include <ngx_config.h>
- #include <ngx_core.h>
- #include <nginx.h>
- static ngx_int_t ngx_add_inherited_sockets(ngx_cycle_t *cycle);
- 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 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_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,
- ngx_core_commands,
- NGX_CORE_MODULE,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NGX_MODULE_V1_PADDING
- };
- ngx_uint_t ngx_max_module;
- 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_int_t i;
- ngx_log_t *log;
- ngx_cycle_t *cycle, init_cycle;
- 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_write_stderr("nginx version: " NGINX_VER_BUILD NGX_LINEFEED);
- if (ngx_show_help) {
- ngx_write_stderr(
- "Usage: nginx [-?hvVtq] [-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
- " -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) {
- ngx_write_stderr(
- #ifdef NGX_COMPILER
- "built by " NGX_COMPILER NGX_LINEFEED
- #endif
- #if (NGX_SSL)
- #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
- "TLS SNI support enabled" NGX_LINEFEED
- #else
- "TLS SNI support disabled" NGX_LINEFEED
- #endif
- #endif
- "configure arguments:" NGX_CONFIGURE NGX_LINEFEED);
- }
- 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;
- }
-
- #if (NGX_OPENSSL)
- ngx_ssl_init(log);
- #endif
-
- 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;
- }
-
- 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_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);
- }
- 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 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;
- }
- }
- 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;
- 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)
-
- 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 '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;
- }
-
- 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;
- 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_CPU_AFFINITY)
- 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,
- "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 (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 (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 = (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_CPU_AFFINITY)
- ngx_core_conf_t *ccf = conf;
- u_char ch;
- uint64_t *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(uint64_t));
- 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 > 64) {
- ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
- "\"worker_cpu_affinity\" supports up to 64 CPUs 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;
- }
- uint64_t
- 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];
- }
- 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 = (ngx_str_t *) 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;
- }
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