annotate src/os/unix/ngx_process.h @ 543:511a89da35ad release-0.2.0

nginx-0.2.0-RELEASE import *) 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 <igor@sysoev.ru>
date Fri, 23 Sep 2005 11:02:22 +0000
parents 371c1cee100d
children c1f965ef9718
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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_respawn: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_RESPAWN -2
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49 #define NGX_PROCESS_JUST_RESPAWN -3
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50 #define NGX_PROCESS_DETACHED -4
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53 #define ngx_getpid getpid
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54 #define ngx_log_pid ngx_pid
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56 ngx_pid_t ngx_spawn_process(ngx_cycle_t *cycle,
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57 ngx_spawn_proc_pt proc, void *data, char *name, ngx_int_t respawn);
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58 ngx_pid_t ngx_execute(ngx_cycle_t *cycle, ngx_exec_ctx_t *ctx);
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59 ngx_int_t ngx_init_signals(ngx_log_t *log);
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60 void ngx_debug_point(void);
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63 #if (NGX_HAVE_SCHED_YIELD)
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64 #define ngx_sched_yield() sched_yield()
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65 #else
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66 #define ngx_sched_yield() usleep(1)
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67 #endif
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70 extern int ngx_argc;
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71 extern char **ngx_argv;
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72 extern char **ngx_os_argv;
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74 extern ngx_pid_t ngx_pid;
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75 extern ngx_socket_t ngx_channel;
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76 extern ngx_int_t ngx_process_slot;
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77 extern ngx_int_t ngx_last_process;
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78 extern ngx_process_t ngx_processes[NGX_MAX_PROCESSES];
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80
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81 #endif /* _NGX_PROCESS_H_INCLUDED_ */