Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_freebsd_rfork_thread.h @ 5860:c9787372f16d
Limit conn: use complex value in limit_conn_zone (ticket #121).
One intentional side effect of this change is that key is allowed only
in the first position. Previously, it was possible to specify the key
variable at any position, but that was never documented, and is contrary
to nginx configuration practice for positional parameters.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Wed, 24 Sep 2014 21:55:19 +0400 |
parents | 15a7deeaa19a |
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rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
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5 */ |
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8 #ifndef _NGX_FREEBSD_RFORK_THREAD_H_INCLUDED_ |
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9 #define _NGX_FREEBSD_RFORK_THREAD_H_INCLUDED_ |
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12 #include <sys/ipc.h> |
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13 #include <sys/sem.h> |
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14 #include <sched.h> |
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16 typedef pid_t ngx_tid_t; |
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18 #define ngx_log_pid ngx_thread_self() |
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19 #define ngx_log_tid 0 |
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461 | 21 #define NGX_TID_T_FMT "%P" |
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22 |
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23 |
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24 #define NGX_MUTEX_LIGHT 1 |
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25 |
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26 #define NGX_MUTEX_LOCK_BUSY 0x80000000 |
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27 |
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28 typedef volatile struct { |
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29 ngx_atomic_t lock; |
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30 ngx_log_t *log; |
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31 int semid; |
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32 } ngx_mutex_t; |
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33 |
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34 |
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35 #define NGX_CV_SIGNAL 64 |
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36 |
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37 typedef struct { |
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38 int signo; |
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39 int kq; |
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40 ngx_tid_t tid; |
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41 ngx_log_t *log; |
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42 } ngx_cond_t; |
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43 |
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44 |
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45 #define ngx_thread_sigmask(how, set, oset) \ |
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46 (sigprocmask(how, set, oset) == -1) ? ngx_errno : 0 |
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47 |
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48 #define ngx_thread_sigmask_n "sigprocmask()" |
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49 |
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50 #define ngx_thread_join(t, p) |
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51 |
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52 #define ngx_setthrtitle(n) setproctitle(n) |
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53 |
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54 |
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55 extern char *ngx_freebsd_kern_usrstack; |
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56 extern size_t ngx_thread_stack_size; |
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57 |
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563 | 59 static ngx_inline ngx_int_t |
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60 ngx_gettid(void) |
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61 { |
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62 char *sp; |
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63 |
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64 if (ngx_thread_stack_size == 0) { |
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65 return 0; |
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66 } |
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67 |
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68 #if ( __i386__ ) |
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69 |
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70 __asm__ volatile ("mov %%esp, %0" : "=q" (sp)); |
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71 |
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72 #elif ( __amd64__ ) |
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73 |
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74 __asm__ volatile ("mov %%rsp, %0" : "=q" (sp)); |
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75 |
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76 #else |
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77 |
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78 #error "rfork()ed threads are not supported on this platform" |
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79 |
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80 #endif |
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81 |
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82 return (ngx_freebsd_kern_usrstack - sp) / ngx_thread_stack_size; |
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83 } |
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84 |
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85 |
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86 ngx_tid_t ngx_thread_self(void); |
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87 |
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89 typedef ngx_uint_t ngx_tls_key_t; |
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90 |
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91 #define NGX_THREAD_KEYS_MAX 16 |
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92 |
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93 extern void **ngx_tls; |
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461 | 95 ngx_err_t ngx_thread_key_create(ngx_tls_key_t *key); |
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96 #define ngx_thread_key_create_n "the tls key creation" |
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461 | 98 ngx_err_t ngx_thread_set_tls(ngx_tls_key_t key, void *value); |
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99 #define ngx_thread_set_tls_n "the tls key setting" |
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100 |
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101 |
563 | 102 static void * |
103 ngx_thread_get_tls(ngx_tls_key_t key) | |
577 | 104 { |
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105 if (key >= NGX_THREAD_KEYS_MAX) { |
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106 return NULL; |
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107 } |
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108 |
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109 return ngx_tls[key * NGX_THREAD_KEYS_MAX + ngx_gettid()]; |
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110 } |
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111 |
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112 |
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113 #define ngx_mutex_trylock(m) ngx_mutex_dolock(m, 1) |
563 | 114 #define ngx_mutex_lock(m) (void) ngx_mutex_dolock(m, 0) |
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115 ngx_int_t ngx_mutex_dolock(ngx_mutex_t *m, ngx_int_t try); |
563 | 116 void ngx_mutex_unlock(ngx_mutex_t *m); |
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117 |
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118 |
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119 typedef int (*ngx_rfork_thread_func_pt)(void *arg); |
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120 |
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121 |
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122 #endif /* _NGX_FREEBSD_RFORK_THREAD_H_INCLUDED_ */ |