annotate src/core/ngx_cycle.h @ 661:b9763778e212 NGINX_0_9_7

nginx 0.9.7 *) Feature: now keepalive connections may be closed premature, if there are no free worker connections. Thanks to Maxim Dounin. *) Feature: the "rotate" parameter of the "image_filter" directive. Thanks to Adam Bocim. *) Bugfix: a case when a backend in "fastcgi_pass", "scgi_pass", or "uwsgi_pass" directives is given by expression and refers to a defined upstream.
author Igor Sysoev <http://sysoev.ru>
date Mon, 04 Apr 2011 00:00:00 +0400
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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7 #ifndef _NGX_CYCLE_H_INCLUDED_
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8 #define _NGX_CYCLE_H_INCLUDED_
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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15 #ifndef NGX_CYCLE_POOL_SIZE
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16 #define NGX_CYCLE_POOL_SIZE 16384
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17 #endif
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20 #define NGX_DEBUG_POINTS_STOP 1
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21 #define NGX_DEBUG_POINTS_ABORT 2
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24 typedef struct ngx_shm_zone_s ngx_shm_zone_t;
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26 typedef ngx_int_t (*ngx_shm_zone_init_pt) (ngx_shm_zone_t *zone, void *data);
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28 struct ngx_shm_zone_s {
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29 void *data;
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30 ngx_shm_t shm;
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31 ngx_shm_zone_init_pt init;
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32 void *tag;
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33 };
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36 struct ngx_cycle_s {
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37 void ****conf_ctx;
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38 ngx_pool_t *pool;
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40 ngx_log_t *log;
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41 ngx_log_t new_log;
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43 ngx_connection_t **files;
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44 ngx_connection_t *free_connections;
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45 ngx_uint_t free_connection_n;
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47 ngx_queue_t reusable_connections_queue;
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49 ngx_array_t listening;
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50 ngx_array_t pathes;
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51 ngx_list_t open_files;
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52 ngx_list_t shared_memory;
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54 ngx_uint_t connection_n;
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55 ngx_uint_t files_n;
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57 ngx_connection_t *connections;
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58 ngx_event_t *read_events;
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59 ngx_event_t *write_events;
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61 ngx_cycle_t *old_cycle;
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63 ngx_str_t conf_file;
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64 ngx_str_t conf_param;
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65 ngx_str_t conf_prefix;
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66 ngx_str_t prefix;
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67 ngx_str_t lock_file;
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68 ngx_str_t hostname;
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69 };
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72 typedef struct {
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73 ngx_flag_t daemon;
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74 ngx_flag_t master;
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76 ngx_msec_t timer_resolution;
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78 ngx_int_t worker_processes;
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79 ngx_int_t debug_points;
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81 ngx_int_t rlimit_nofile;
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82 ngx_int_t rlimit_sigpending;
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83 off_t rlimit_core;
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85 int priority;
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87 ngx_uint_t cpu_affinity_n;
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88 u_long *cpu_affinity;
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90 char *username;
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91 ngx_uid_t user;
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92 ngx_gid_t group;
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94 ngx_str_t working_directory;
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95 ngx_str_t lock_file;
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97 ngx_str_t pid;
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98 ngx_str_t oldpid;
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100 ngx_array_t env;
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101 char **environment;
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102
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103 #if (NGX_THREADS)
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104 ngx_int_t worker_threads;
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105 size_t thread_stack_size;
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106 #endif
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107
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108 } ngx_core_conf_t;
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111 typedef struct {
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112 ngx_pool_t *pool; /* pcre's malloc() pool */
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113 } ngx_core_tls_t;
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116 #define ngx_is_init_cycle(cycle) (cycle->conf_ctx == NULL)
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118
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119 ngx_cycle_t *ngx_init_cycle(ngx_cycle_t *old_cycle);
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120 ngx_int_t ngx_create_pidfile(ngx_str_t *name, ngx_log_t *log);
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121 void ngx_delete_pidfile(ngx_cycle_t *cycle);
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122 ngx_int_t ngx_signal_process(ngx_cycle_t *cycle, char *sig);
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123 void ngx_reopen_files(ngx_cycle_t *cycle, ngx_uid_t user);
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124 char **ngx_set_environment(ngx_cycle_t *cycle, ngx_uint_t *last);
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125 ngx_pid_t ngx_exec_new_binary(ngx_cycle_t *cycle, char *const *argv);
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126 u_long ngx_get_cpu_affinity(ngx_uint_t n);
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127 ngx_shm_zone_t *ngx_shared_memory_add(ngx_conf_t *cf, ngx_str_t *name,
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128 size_t size, void *tag);
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131 extern volatile ngx_cycle_t *ngx_cycle;
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132 extern ngx_array_t ngx_old_cycles;
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133 extern ngx_module_t ngx_core_module;
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134 extern ngx_uint_t ngx_test_config;
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135 extern ngx_uint_t ngx_quiet_mode;
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136 #if (NGX_THREADS)
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137 extern ngx_tls_key_t ngx_core_tls_key;
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138 #endif
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141 #endif /* _NGX_CYCLE_H_INCLUDED_ */