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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #ifndef _NGX_PROCESS_H_INCLUDED_
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8 #define _NGX_PROCESS_H_INCLUDED_
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9
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10
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11 typedef pid_t ngx_pid_t;
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12
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13 typedef void (*ngx_spawn_proc_pt) (ngx_cycle_t *cycle, void *data);
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14
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15 typedef struct {
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16 ngx_pid_t pid;
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17 int status;
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18 ngx_socket_t channel[2];
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19
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20 ngx_spawn_proc_pt proc;
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21 void *data;
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22 char *name;
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23
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24 unsigned respawn:1;
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25 unsigned just_respawn:1;
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26 unsigned detached:1;
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27 unsigned exiting:1;
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28 unsigned exited:1;
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29 } ngx_process_t;
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30
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31
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32 typedef struct {
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33 char *path;
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34 char *name;
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35 char *const *argv;
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36 char *const *envp;
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37 } ngx_exec_ctx_t;
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38
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39
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40 #define NGX_MAX_PROCESSES 1024
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41
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42 #define NGX_PROCESS_NORESPAWN -1
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43 #define NGX_PROCESS_RESPAWN -2
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44 #define NGX_PROCESS_JUST_RESPAWN -3
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45 #define NGX_PROCESS_DETACHED -4
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46
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47
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48 #define ngx_getpid getpid
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49 #define ngx_log_pid ngx_pid
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50
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51 ngx_pid_t ngx_spawn_process(ngx_cycle_t *cycle,
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42
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52 ngx_spawn_proc_pt proc, void *data, char *name, ngx_int_t respawn);
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53 ngx_pid_t ngx_execute(ngx_cycle_t *cycle, ngx_exec_ctx_t *ctx);
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54 void ngx_process_get_status(void);
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55 void ngx_debug_point(void);
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56
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4
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57
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58 #if (NGX_HAVE_SCHED_YIELD)
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59 #define ngx_sched_yield() sched_yield()
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4
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60 #else
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61 #define ngx_sched_yield() usleep(1)
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62 #endif
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63
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64
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42
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65 #if !defined(ngx_setproctitle)
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66 ngx_int_t ngx_init_setproctitle(ngx_log_t *log);
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67 void ngx_setproctitle(char *title);
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68 #endif
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69
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70
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2
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71 extern int ngx_argc;
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72 extern char **ngx_argv;
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73 extern char **ngx_os_argv;
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74
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75 extern ngx_pid_t ngx_pid;
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76 extern ngx_socket_t ngx_channel;
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77 extern ngx_int_t ngx_process_slot;
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78 extern ngx_int_t ngx_last_process;
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79 extern ngx_process_t ngx_processes[NGX_MAX_PROCESSES];
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80
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81
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82 #endif /* _NGX_PROCESS_H_INCLUDED_ */
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