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annotate src/os/unix/ngx_process.h @ 4244:df9d3dd8cfc0 stable-1.0

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Merging r4020: SIGWINCH/NOACCEPT signal is disabled now in non-daemon mode. Non-daemon mode is currently used by supervisord, daemontools and so on or during debugging. The NOACCEPT signal is only used for online upgrade which is not supported when nginx is run under supervisord, etc., so this change should not break existant setups.
author Igor Sysoev <igor@sysoev.ru>
date Tue, 01 Nov 2011 11:26:56 +0000
parents d82993af1da0
children d620f497c50f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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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_PROCESS_H_INCLUDED_
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8 #define _NGX_PROCESS_H_INCLUDED_
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11 #include <ngx_setproctitle.h>
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14 typedef pid_t ngx_pid_t;
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16 #define NGX_INVALID_PID -1
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17
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18 typedef void (*ngx_spawn_proc_pt) (ngx_cycle_t *cycle, void *data);
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20 typedef struct {
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21 ngx_pid_t pid;
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22 int status;
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23 ngx_socket_t channel[2];
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25 ngx_spawn_proc_pt proc;
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26 void *data;
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27 char *name;
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29 unsigned respawn:1;
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30 unsigned just_spawn:1;
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31 unsigned detached:1;
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32 unsigned exiting:1;
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33 unsigned exited:1;
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34 } ngx_process_t;
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37 typedef struct {
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38 char *path;
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39 char *name;
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40 char *const *argv;
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41 char *const *envp;
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42 } ngx_exec_ctx_t;
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45 #define NGX_MAX_PROCESSES 1024
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47 #define NGX_PROCESS_NORESPAWN -1
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48 #define NGX_PROCESS_JUST_SPAWN -2
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49 #define NGX_PROCESS_RESPAWN -3
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50 #define NGX_PROCESS_JUST_RESPAWN -4
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51 #define NGX_PROCESS_DETACHED -5
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54 #define ngx_getpid getpid
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56 #ifndef ngx_log_pid
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57 #define ngx_log_pid ngx_pid
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58 #endif
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61 ngx_pid_t ngx_spawn_process(ngx_cycle_t *cycle,
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62 ngx_spawn_proc_pt proc, void *data, char *name, ngx_int_t respawn);
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63 ngx_pid_t ngx_execute(ngx_cycle_t *cycle, ngx_exec_ctx_t *ctx);
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64 ngx_int_t ngx_init_signals(ngx_log_t *log);
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65 void ngx_debug_point(void);
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68 #if (NGX_HAVE_SCHED_YIELD)
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69 #define ngx_sched_yield() sched_yield()
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70 #else
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71 #define ngx_sched_yield() usleep(1)
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72 #endif
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75 extern int ngx_argc;
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76 extern char **ngx_argv;
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77 extern char **ngx_os_argv;
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79 extern ngx_pid_t ngx_pid;
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80 extern ngx_socket_t ngx_channel;
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81 extern ngx_int_t ngx_process_slot;
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82 extern ngx_int_t ngx_last_process;
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83 extern ngx_process_t ngx_processes[NGX_MAX_PROCESSES];
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86 #endif /* _NGX_PROCESS_H_INCLUDED_ */