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view src/core/ngx_cycle.h @ 92:45945fa8b8ba NGINX_0_2_0

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nginx 0.2.0 *) The pid-file names used during online upgrade was changed and now is not required a manual rename operation. The old master process adds the ".oldbin" suffix to its pid-file and executes a new binary file. The new master process creates usual pid-file without the ".newbin" suffix. If the master process exits, then old master process renames back its pid-file with the ".oldbin" suffix to the pid-file without suffix. *) Change: the "worker_connections" directive, new name of the "connections" directive; now the directive specifies maximum number of connections, but not maximum socket descriptor number. *) Feature: SSL supports the session cache inside one worker process. *) Feature: the "satisfy_any" directive. *) Change: the ngx_http_access_module and ngx_http_auth_basic_module do not run for subrequests. *) Feature: the "worker_rlimit_nofile" and "worker_rlimit_sigpending" directives. *) Bugfix: if all backend using in load-balancing failed after one error, then nginx did not try do connect to them during 60 seconds. *) Bugfix: in IMAP/POP3 command argument parsing. Thanks to Rob Mueller. *) Bugfix: errors while using SSL in IMAP/POP3 proxy. *) Bugfix: errors while using SSI and gzipping. *) Bugfix: the "Expires" and "Cache-Control" header lines were omitted from the 304 responses. Thanks to Alexandr Kukushkin.
author Igor Sysoev <http://sysoev.ru>
date Fri, 23 Sep 2005 00:00:00 +0400
parents 8ad297c88dcb
children dad2fe8ecf08
line wrap: on
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/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_CYCLE_H_INCLUDED_
#define _NGX_CYCLE_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


#ifndef NGX_CYCLE_POOL_SIZE
#define NGX_CYCLE_POOL_SIZE     16384
#endif


#define NGX_DEBUG_POINTS_STOP   1
#define NGX_DEBUG_POINTS_ABORT  2


struct ngx_cycle_s {
    void                  ****conf_ctx;
    ngx_pool_t               *pool;

    ngx_log_t                *log;
    ngx_log_t                *new_log;

    ngx_connection_t        **files;
    ngx_connection_t         *free_connections;
    ngx_uint_t                free_connection_n;

    ngx_array_t               listening;
    ngx_array_t               pathes;
    ngx_list_t                open_files;

    ngx_uint_t                connection_n;
    ngx_uint_t                files_n;

    ngx_connection_t         *connections0;
    ngx_event_t              *read_events0;
    ngx_event_t              *write_events0;

    ngx_cycle_t              *old_cycle;

    ngx_str_t                 conf_file;
    ngx_str_t                 root;
};


typedef struct {
     ngx_flag_t               daemon;
     ngx_flag_t               master;

     ngx_int_t                worker_processes;
     ngx_int_t                debug_points;

     ngx_int_t                rlimit_nofile;
     ngx_int_t                rlimit_sigpending;

     int                      priority;

     char                    *username;
     ngx_uid_t                user;
     ngx_gid_t                group;

     ngx_str_t                working_directory;

     ngx_str_t                pid;
     ngx_str_t                oldpid;

#if (NGX_THREADS)
     ngx_int_t                worker_threads;
     size_t                   thread_stack_size;
#endif

} ngx_core_conf_t;


typedef struct {
     ngx_pool_t              *pool;   /* pcre's malloc() pool */
} ngx_core_tls_t;


ngx_cycle_t *ngx_init_cycle(ngx_cycle_t *old_cycle);
ngx_int_t ngx_create_pidfile(ngx_cycle_t *cycle, ngx_cycle_t *old_cycle);
void ngx_delete_pidfile(ngx_cycle_t *cycle);
void ngx_reopen_files(ngx_cycle_t *cycle, ngx_uid_t user);
ngx_pid_t ngx_exec_new_binary(ngx_cycle_t *cycle, char *const *argv);


extern volatile ngx_cycle_t  *ngx_cycle;
extern ngx_array_t            ngx_old_cycles;
extern ngx_module_t           ngx_core_module;
extern ngx_uint_t             ngx_test_config;
#if (NGX_THREADS)
extern ngx_tls_key_t          ngx_core_tls_key;
#endif


#endif /* _NGX_CYCLE_H_INCLUDED_ */