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view src/os/unix/ngx_process.h @ 342:4276c2f1f434 NGINX_0_6_15

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nginx 0.6.15 *) Feature: cygwin compatibility. Thanks to Vladimir Kutakov. *) Feature: the "merge_slashes" directive. *) Feature: the "gzip_vary" directive. *) Feature: the "server_tokens" directive. *) Bugfix: nginx did not unescape URI in the "include" SSI command. *) Bugfix: the segmentation fault was occurred on start or while reconfiguration if variable was used in the "charset" or "source_charset" directives. *) Bugfix: nginx returned the 400 response on requests like "GET http://www.domain.com HTTP/1.0". Thanks to James Oakley. *) Bugfix: if request with request body was redirected using the "error_page" directive, then nginx tried to read the request body again; bug appeared in 0.6.7. *) Bugfix: a segmentation fault occurred in worker process if no server_name was explicitly defined for server processing request; bug appeared in 0.6.7.
author Igor Sysoev <http://sysoev.ru>
date Mon, 22 Oct 2007 00:00:00 +0400
parents cf3d6edb3ad6
children 43cc6f0b77ce
line wrap: on
line source


/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_PROCESS_H_INCLUDED_
#define _NGX_PROCESS_H_INCLUDED_


#include <ngx_setproctitle.h>


typedef pid_t       ngx_pid_t;

#define NGX_INVALID_PID  -1

typedef void (*ngx_spawn_proc_pt) (ngx_cycle_t *cycle, void *data);

typedef struct {
    ngx_pid_t           pid;
    int                 status;
    ngx_socket_t        channel[2];

    ngx_spawn_proc_pt   proc;
    void               *data;
    char               *name;

    unsigned            respawn:1;
    unsigned            just_respawn:1;
    unsigned            detached:1;
    unsigned            exiting:1;
    unsigned            exited:1;
} ngx_process_t;


typedef struct {
    char         *path;
    char         *name;
    char *const  *argv;
    char *const  *envp;
} ngx_exec_ctx_t;


#define NGX_MAX_PROCESSES         1024

#define NGX_PROCESS_NORESPAWN     -1
#define NGX_PROCESS_RESPAWN       -2
#define NGX_PROCESS_JUST_RESPAWN  -3
#define NGX_PROCESS_DETACHED      -4


#define ngx_getpid   getpid

#ifndef ngx_log_pid
#define ngx_log_pid  ngx_pid
#endif


ngx_pid_t ngx_spawn_process(ngx_cycle_t *cycle,
    ngx_spawn_proc_pt proc, void *data, char *name, ngx_int_t respawn);
ngx_pid_t ngx_execute(ngx_cycle_t *cycle, ngx_exec_ctx_t *ctx);
ngx_int_t ngx_init_signals(ngx_log_t *log);
void ngx_debug_point(void);


#if (NGX_HAVE_SCHED_YIELD)
#define ngx_sched_yield()  sched_yield()
#else
#define ngx_sched_yield()  usleep(1)
#endif


extern int            ngx_argc;
extern char         **ngx_argv;
extern char         **ngx_os_argv;

extern ngx_pid_t      ngx_pid;
extern ngx_socket_t   ngx_channel;
extern ngx_int_t      ngx_process_slot;
extern ngx_int_t      ngx_last_process;
extern ngx_process_t  ngx_processes[NGX_MAX_PROCESSES];


#endif /* _NGX_PROCESS_H_INCLUDED_ */