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/*
* 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_ */