nginx/src/core/ngx_cycle.h

   1
   2 /*
   3  * Copyright (C) Igor Sysoev
   4  */
   5
   6
   7 #ifndef _NGX_CYCLE_H_INCLUDED_
   8 #define _NGX_CYCLE_H_INCLUDED_
   9
  10
  11 #include <ngx_config.h>
  12 #include <ngx_core.h>
  13
  14
  15 #ifndef NGX_CYCLE_POOL_SIZE
  16 #define NGX_CYCLE_POOL_SIZE     16384
  17 #endif
  18
  19
  20 #define NGX_DEBUG_POINTS_STOP   1
  21 #define NGX_DEBUG_POINTS_ABORT  2
  22
  23
  24 typedef struct ngx_shm_zone_s  ngx_shm_zone_t;
  25
  26 typedef ngx_int_t (*ngx_shm_zone_init_pt) (ngx_shm_zone_t *zone, void *data);
  27
  28 struct ngx_shm_zone_s {
  29     void                     *data;
  30     ngx_shm_t                 shm;
  31     ngx_shm_zone_init_pt      init;
  32     ngx_str_t                 name;
  33     void                     *tag;
  34 };
  35
  36
  37 struct ngx_cycle_s {
  38     void                  ****conf_ctx;
  39     ngx_pool_t               *pool;
  40
  41     ngx_log_t                *log;
  42     ngx_log_t                *new_log;
  43
  44     ngx_connection_t        **files;
  45     ngx_connection_t         *free_connections;
  46     ngx_uint_t                free_connection_n;
  47
  48     ngx_array_t               listening;
  49     ngx_array_t               pathes;
  50     ngx_list_t                open_files;
  51     ngx_list_t                shared_memory;
  52
  53     ngx_uint_t                connection_n;
  54     ngx_uint_t                files_n;
  55
  56     ngx_connection_t         *connections;
  57     ngx_event_t              *read_events;
  58     ngx_event_t              *write_events;
  59
  60     ngx_cycle_t              *old_cycle;
  61
  62     ngx_str_t                 conf_file;
  63     ngx_str_t                 conf_param;
  64     ngx_str_t                 root;
  65     ngx_str_t                 lock_file;
  66     ngx_str_t                 hostname;
  67 };
  68
  69
  70 typedef struct {
  71      ngx_flag_t               daemon;
  72      ngx_flag_t               master;
  73
  74      ngx_msec_t               timer_resolution;
  75
  76      ngx_int_t                worker_processes;
  77      ngx_int_t                debug_points;
  78
  79      ngx_int_t                rlimit_nofile;
  80      ngx_int_t                rlimit_sigpending;
  81      size_t                   rlimit_core;
  82
  83      int                      priority;
  84
  85      ngx_uint_t               cpu_affinity_n;
  86      u_long                  *cpu_affinity;
  87
  88      char                    *username;
  89      ngx_uid_t                user;
  90      ngx_gid_t                group;
  91
  92      ngx_str_t                working_directory;
  93      ngx_str_t                lock_file;
  94
  95      ngx_str_t                pid;
  96      ngx_str_t                oldpid;
  97
  98      ngx_array_t              env;
  99      char                   **environment;
 100
 101 #if (NGX_THREADS)
 102      ngx_int_t                worker_threads;
 103      size_t                   thread_stack_size;
 104 #endif
 105
 106 } ngx_core_conf_t;
 107
 108
 109 typedef struct {
 110      ngx_pool_t              *pool;   /* pcre's malloc() pool */
 111 } ngx_core_tls_t;
 112
 113
 114 #define ngx_is_init_cycle(cycle)  (cycle->conf_ctx == NULL)
 115
 116
 117 ngx_cycle_t *ngx_init_cycle(ngx_cycle_t *old_cycle);
 118 ngx_int_t ngx_create_pidfile(ngx_str_t *name, ngx_log_t *log);
 119 void ngx_delete_pidfile(ngx_cycle_t *cycle);
 120 void ngx_reopen_files(ngx_cycle_t *cycle, ngx_uid_t user);
 121 char **ngx_set_environment(ngx_cycle_t *cycle, ngx_uint_t *last);
 122 ngx_pid_t ngx_exec_new_binary(ngx_cycle_t *cycle, char *const *argv);
 123 u_long ngx_get_cpu_affinity(ngx_uint_t n);
 124 ngx_shm_zone_t *ngx_shared_memory_add(ngx_conf_t *cf, ngx_str_t *name,
 125     size_t size, void *tag);
 126
 127
 128 extern volatile ngx_cycle_t  *ngx_cycle;
 129 extern ngx_array_t            ngx_old_cycles;
 130 extern ngx_module_t           ngx_core_module;
 131 extern ngx_uint_t             ngx_test_config;
 132 #if (NGX_THREADS)
 133 extern ngx_tls_key_t          ngx_core_tls_key;
 134 #endif
 135
 136
 137 #endif /* _NGX_CYCLE_H_INCLUDED_ */