mirror of
https://github.com/nginx/nginx.git
synced 2024-12-16 22:47:47 +08:00
962 lines
23 KiB
C
962 lines
23 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_event.h>
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#include <nginx.h>
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static ngx_int_t ngx_add_inherited_sockets(ngx_cycle_t *cycle);
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static ngx_int_t ngx_getopt(ngx_cycle_t *cycle, int argc, char *const *argv);
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static ngx_int_t ngx_save_argv(ngx_cycle_t *cycle, int argc, char *const *argv);
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static void *ngx_core_module_create_conf(ngx_cycle_t *cycle);
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static char *ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf);
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static char *ngx_set_user(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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static char *ngx_set_priority(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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static char *ngx_set_cpu_affinity(ngx_conf_t *cf, ngx_command_t *cmd,
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void *conf);
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static ngx_conf_enum_t ngx_debug_points[] = {
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{ ngx_string("stop"), NGX_DEBUG_POINTS_STOP },
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{ ngx_string("abort"), NGX_DEBUG_POINTS_ABORT },
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{ ngx_null_string, 0 }
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};
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static ngx_command_t ngx_core_commands[] = {
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{ ngx_string("daemon"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_FLAG,
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ngx_conf_set_flag_slot,
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0,
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offsetof(ngx_core_conf_t, daemon),
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NULL },
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{ ngx_string("master_process"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_FLAG,
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ngx_conf_set_flag_slot,
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0,
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offsetof(ngx_core_conf_t, master),
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NULL },
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{ ngx_string("timer_resolution"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_msec_slot,
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0,
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offsetof(ngx_core_conf_t, timer_resolution),
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NULL },
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{ ngx_string("pid"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_str_slot,
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0,
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offsetof(ngx_core_conf_t, pid),
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NULL },
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{ ngx_string("lock_file"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_str_slot,
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0,
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offsetof(ngx_core_conf_t, lock_file),
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NULL },
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{ ngx_string("worker_processes"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_num_slot,
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0,
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offsetof(ngx_core_conf_t, worker_processes),
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NULL },
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{ ngx_string("debug_points"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_enum_slot,
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0,
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offsetof(ngx_core_conf_t, debug_points),
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&ngx_debug_points },
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{ ngx_string("user"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE12,
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ngx_set_user,
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0,
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0,
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NULL },
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{ ngx_string("worker_priority"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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ngx_set_priority,
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0,
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0,
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NULL },
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{ ngx_string("worker_cpu_affinity"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_1MORE,
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ngx_set_cpu_affinity,
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0,
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0,
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NULL },
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{ ngx_string("worker_rlimit_nofile"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_num_slot,
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0,
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offsetof(ngx_core_conf_t, rlimit_nofile),
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NULL },
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{ ngx_string("worker_rlimit_core"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_size_slot,
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0,
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offsetof(ngx_core_conf_t, rlimit_core),
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NULL },
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{ ngx_string("worker_rlimit_sigpending"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_num_slot,
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0,
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offsetof(ngx_core_conf_t, rlimit_sigpending),
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NULL },
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{ ngx_string("working_directory"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_str_slot,
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0,
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offsetof(ngx_core_conf_t, working_directory),
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NULL },
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#if (NGX_THREADS)
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{ ngx_string("worker_threads"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_num_slot,
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0,
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offsetof(ngx_core_conf_t, worker_threads),
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NULL },
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{ ngx_string("thread_stack_size"),
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NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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ngx_conf_set_size_slot,
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0,
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offsetof(ngx_core_conf_t, thread_stack_size),
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NULL },
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#endif
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ngx_null_command
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};
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static ngx_core_module_t ngx_core_module_ctx = {
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ngx_string("core"),
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ngx_core_module_create_conf,
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ngx_core_module_init_conf
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};
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ngx_module_t ngx_core_module = {
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NGX_MODULE_V1,
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&ngx_core_module_ctx, /* module context */
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ngx_core_commands, /* module directives */
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NGX_CORE_MODULE, /* module type */
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NULL, /* init master */
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NULL, /* init module */
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NULL, /* init process */
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NULL, /* init thread */
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NULL, /* exit thread */
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NULL, /* exit process */
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NULL, /* exit master */
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NGX_MODULE_V1_PADDING
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};
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ngx_uint_t ngx_max_module;
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static ngx_uint_t ngx_show_version;
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static ngx_uint_t ngx_show_configure;
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static char *ngx_null_environ = NULL;
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int ngx_cdecl
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main(int argc, char *const *argv)
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{
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ngx_int_t i;
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ngx_log_t *log;
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ngx_cycle_t *cycle, init_cycle;
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ngx_core_conf_t *ccf;
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#if (NGX_FREEBSD)
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ngx_debug_init();
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#endif
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/* TODO */ ngx_max_sockets = -1;
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ngx_time_init();
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#if (NGX_PCRE)
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ngx_regex_init();
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#endif
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ngx_pid = ngx_getpid();
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log = ngx_log_init();
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if (log == NULL) {
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return 1;
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}
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/* STUB */
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#if (NGX_OPENSSL)
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ngx_ssl_init(log);
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#endif
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/* init_cycle->log is required for signal handlers and ngx_getopt() */
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ngx_memzero(&init_cycle, sizeof(ngx_cycle_t));
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init_cycle.log = log;
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ngx_cycle = &init_cycle;
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init_cycle.pool = ngx_create_pool(1024, log);
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if (init_cycle.pool == NULL) {
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return 1;
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}
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if (ngx_save_argv(&init_cycle, argc, argv) != NGX_OK) {
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return 1;
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}
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if (ngx_getopt(&init_cycle, argc, ngx_argv) != NGX_OK) {
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return 1;
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}
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if (ngx_show_version) {
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ngx_write_fd(ngx_stderr_fileno, "nginx version: " NGINX_VER CRLF,
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sizeof("nginx version: " NGINX_VER CRLF) - 1);
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if (ngx_show_configure) {
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#ifdef NGX_COMPILER
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ngx_write_fd(ngx_stderr_fileno, "built by " NGX_COMPILER CRLF,
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sizeof("built by " NGX_COMPILER CRLF) - 1);
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#endif
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#ifndef __WATCOMC__
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/* OpenWatcomC could not build the long NGX_CONFIGURE string */
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ngx_write_fd(ngx_stderr_fileno,
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"configure arguments: " NGX_CONFIGURE CRLF,
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sizeof("configure arguments :" NGX_CONFIGURE CRLF) - 1);
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#endif
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}
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if (!ngx_test_config) {
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return 0;
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}
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}
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if (ngx_test_config) {
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log->log_level = NGX_LOG_INFO;
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}
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if (ngx_os_init(log) != NGX_OK) {
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return 1;
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}
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/* ngx_crc32_init() requires ngx_cacheline_size set in ngx_os_init() */
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if (ngx_crc32_init() != NGX_OK) {
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return 1;
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}
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if (ngx_add_inherited_sockets(&init_cycle) != NGX_OK) {
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return 1;
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}
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environ = &ngx_null_environ;
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ngx_max_module = 0;
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for (i = 0; ngx_modules[i]; i++) {
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ngx_modules[i]->index = ngx_max_module++;
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}
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cycle = ngx_init_cycle(&init_cycle);
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if (cycle == NULL) {
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if (ngx_test_config) {
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ngx_log_error(NGX_LOG_EMERG, log, 0,
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"the configuration file %s test failed",
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init_cycle.conf_file.data);
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}
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return 1;
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}
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if (ngx_test_config) {
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ngx_log_error(NGX_LOG_INFO, log, 0,
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"the configuration file %s was tested successfully",
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cycle->conf_file.data);
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return 0;
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}
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ngx_os_status(cycle->log);
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ngx_cycle = cycle;
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ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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ngx_process = ccf->master ? NGX_PROCESS_MASTER : NGX_PROCESS_SINGLE;
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#if (NGX_WIN32)
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#if 0
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TODO:
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if (ccf->run_as_service) {
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if (ngx_service(cycle->log) != NGX_OK) {
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return 1;
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}
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return 0;
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}
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#endif
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#else
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if (ngx_init_signals(cycle->log) != NGX_OK) {
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return 1;
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}
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if (!ngx_inherited && ccf->daemon) {
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if (ngx_daemon(cycle->log) != NGX_OK) {
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return 1;
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}
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ngx_daemonized = 1;
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}
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if (ngx_create_pidfile(&ccf->pid, cycle->log) != NGX_OK) {
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return 1;
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}
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#endif
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if (ngx_process == NGX_PROCESS_MASTER) {
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ngx_master_process_cycle(cycle);
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} else {
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ngx_single_process_cycle(cycle);
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}
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return 0;
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}
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static ngx_int_t
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ngx_add_inherited_sockets(ngx_cycle_t *cycle)
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{
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u_char *p, *v, *inherited;
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ngx_int_t s;
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ngx_listening_t *ls;
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inherited = (u_char *) getenv(NGINX_VAR);
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if (inherited == NULL) {
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return NGX_OK;
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}
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ngx_log_error(NGX_LOG_NOTICE, cycle->log, 0,
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"using inherited sockets from \"%s\"", inherited);
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if (ngx_array_init(&cycle->listening, cycle->pool, 10,
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sizeof(ngx_listening_t))
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== NGX_ERROR)
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{
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return NGX_ERROR;
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}
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for (p = inherited, v = p; *p; p++) {
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if (*p == ':' || *p == ';') {
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s = ngx_atoi(v, p - v);
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if (s == NGX_ERROR) {
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ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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"invalid socket number \"%s\" in " NGINX_VAR
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" environment variable, ignoring the rest"
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" of the variable", v);
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break;
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}
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v = p + 1;
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ls = ngx_array_push(&cycle->listening);
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if (ls == NULL) {
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return NGX_ERROR;
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}
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ngx_memzero(ls, sizeof(ngx_listening_t));
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ls->fd = (ngx_socket_t) s;
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}
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}
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ngx_inherited = 1;
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return ngx_set_inherited_sockets(cycle);
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}
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ngx_pid_t
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ngx_exec_new_binary(ngx_cycle_t *cycle, char *const *argv)
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{
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char *env[3], *var;
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u_char *p;
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ngx_uint_t i;
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ngx_pid_t pid;
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ngx_exec_ctx_t ctx;
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ngx_core_conf_t *ccf;
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ngx_listening_t *ls;
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ctx.path = argv[0];
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ctx.name = "new binary process";
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ctx.argv = argv;
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var = ngx_alloc(sizeof(NGINX_VAR)
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+ cycle->listening.nelts * (NGX_INT32_LEN + 1) + 2,
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cycle->log);
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p = ngx_cpymem(var, NGINX_VAR "=", sizeof(NGINX_VAR));
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ls = cycle->listening.elts;
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for (i = 0; i < cycle->listening.nelts; i++) {
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p = ngx_sprintf(p, "%ud;", ls[i].fd);
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}
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*p = '\0';
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ngx_log_debug1(NGX_LOG_DEBUG_CORE, cycle->log, 0, "inherited: %s", var);
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env[0] = var;
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#if (NGX_SETPROCTITLE_USES_ENV)
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/* allocate the spare 300 bytes for the new binary process title */
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env[1] = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
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"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
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env[2] = NULL;
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#else
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env[1] = NULL;
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#endif
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ctx.envp = (char *const *) &env;
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ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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if (ngx_rename_file(ccf->pid.data, ccf->oldpid.data)
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!= NGX_OK)
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{
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ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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ngx_rename_file_n " %s to %s failed "
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"before executing new binary process \"%s\"",
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ccf->pid.data, ccf->oldpid.data, argv[0]);
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ngx_free(var);
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return NGX_INVALID_PID;
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}
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pid = ngx_execute(cycle, &ctx);
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if (pid == NGX_INVALID_PID) {
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if (ngx_rename_file(ccf->oldpid.data, ccf->pid.data)
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!= NGX_OK)
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{
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ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno,
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ngx_rename_file_n " %s back to %s failed "
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"after try to executing new binary process \"%s\"",
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ccf->oldpid.data, ccf->pid.data, argv[0]);
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}
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}
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ngx_free(var);
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return pid;
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}
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static ngx_int_t
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ngx_getopt(ngx_cycle_t *cycle, int argc, char *const *argv)
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{
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ngx_int_t i;
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for (i = 1; i < argc; i++) {
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if (argv[i][0] != '-') {
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ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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"invalid option: \"%s\"", argv[i]);
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return NGX_ERROR;
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}
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switch (argv[i][1]) {
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case 'v':
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ngx_show_version = 1;
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break;
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case 'V':
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ngx_show_version = 1;
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ngx_show_configure = 1;
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break;
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case 't':
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ngx_test_config = 1;
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break;
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case 'c':
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if (argv[i + 1] == NULL) {
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ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
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"the option: \"%s\" requires file name",
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argv[i]);
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return NGX_ERROR;
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}
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cycle->conf_file.data = (u_char *) argv[++i];
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cycle->conf_file.len = ngx_strlen(cycle->conf_file.data);
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break;
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default:
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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;
|
|
}
|
|
|
|
if (ngx_conf_full_name(cycle, &cycle->conf_file) == NGX_ERROR) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
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
|
|
|
|
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
|
|
|
|
return ccf;
|
|
}
|
|
|
|
|
|
static char *
|
|
ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
{
|
|
ngx_core_conf_t *ccf = conf;
|
|
|
|
#if !(NGX_WIN32)
|
|
ngx_str_t lock_file;
|
|
struct passwd *pwd;
|
|
struct group *grp;
|
|
#endif
|
|
|
|
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) {
|
|
|
|
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;
|
|
|
|
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) == NGX_ERROR) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
ccf->oldpid.len = ccf->pid.len + sizeof(NGX_OLDPID_EXT);
|
|
|
|
ccf->oldpid.data = ngx_palloc(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) == NGX_ERROR) {
|
|
return NGX_CONF_ERROR;
|
|
}
|
|
|
|
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_palloc(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;
|
|
|
|
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);
|
|
|
|
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_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];
|
|
}
|