nginx核心结构
ngx_cycle_s
struct ngx_cycle_s {
void ****conf_ctx; // 配置数据的起始存储位置
ngx_pool_t *pool;
ngx_log_t *log;
ngx_log_t new_log;
ngx_uint_t log_use_stderr; /* unsigned log_use_stderr:1; */
ngx_connection_t **files;
ngx_connection_t *free_connections;
ngx_uint_t free_connection_n;
ngx_module_t **modules; // 运行时模块指针数组
ngx_uint_t modules_n; // 模块数量
ngx_uint_t modules_used; /* 模块是否已加载的标志位 unsigned modules_used:1; */
ngx_queue_t reusable_connections_queue;
ngx_uint_t reusable_connections_n;
ngx_array_t listening;
ngx_array_t paths;
ngx_array_t config_dump;
ngx_rbtree_t config_dump_rbtree;
ngx_rbtree_node_t config_dump_sentinel;
ngx_list_t open_files;
ngx_list_t shared_memory;
ngx_uint_t connection_n;
ngx_uint_t files_n;
ngx_connection_t *connections;
ngx_event_t *read_events;
ngx_event_t *write_events;
ngx_cycle_t *old_cycle;
ngx_str_t conf_file;
ngx_str_t conf_param;
ngx_str_t conf_prefix;
ngx_str_t prefix;
ngx_str_t lock_file;
ngx_str_t hostname;
};ngx_module_t 模块定义
ngx_http_conf_ctx_t
ngx_conf_s
ngx_command_s
ngx_http_module_t
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