Mercurial > hg > nginx-quic
annotate src/os/unix/freebsd/ngx_rfork_thread.c @ 3:34a521b1a148
nginx-0.0.1-2002-08-20-18:48:28 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 20 Aug 2002 14:48:28 +0000 |
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nginx-0.0.1-2002-08-20-18:48:28 import
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1 |
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nginx-0.0.1-2002-08-20-18:48:28 import
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2 #include <ngx_os_thread.h> |
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3 |
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nginx-0.0.1-2002-08-20-18:48:28 import
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4 char *ngx_stacks_start; |
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nginx-0.0.1-2002-08-20-18:48:28 import
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5 char *ngx_stacks_end; |
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nginx-0.0.1-2002-08-20-18:48:28 import
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6 size_t ngx_stack_size; |
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7 |
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8 |
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nginx-0.0.1-2002-08-20-18:48:28 import
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9 /* handle thread-safe errno */ |
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nginx-0.0.1-2002-08-20-18:48:28 import
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10 static int errno0; /* errno for main thread */ |
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nginx-0.0.1-2002-08-20-18:48:28 import
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11 static int *errnos; |
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12 |
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nginx-0.0.1-2002-08-20-18:48:28 import
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13 int *__error() |
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14 { |
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nginx-0.0.1-2002-08-20-18:48:28 import
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15 ngx_tid_t tid = ngx_gettid(); |
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16 return tid ? &(errnos[ngx_gettid()]) : &errno0; |
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17 } |
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18 |
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19 |
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nginx-0.0.1-2002-08-20-18:48:28 import
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20 int ngx_create_thread(ngx_os_tid_t *tid, void *stack, |
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21 int (*func)(void *arg), void *arg, ngx_log_t log) |
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22 { |
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23 int id, err; |
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24 |
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25 id = rfork_thread(RFPROC|RFMEM, stack, func, arg); |
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26 err = ngx_errno; |
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27 |
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28 if (id == -1) |
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29 ngx_log_error(NGX_LOG_ERR, log, err, |
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30 "ngx_create_os_thread: rfork failed"); |
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31 else |
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32 *tid = id; |
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33 |
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34 return err; |
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35 } |
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36 |
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37 |
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38 int ngx_create_thread_env(int n, size_t size, ngx_log_t log) |
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39 { |
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nginx-0.0.1-2002-08-20-18:48:28 import
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40 char *addr; |
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41 |
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42 /* create thread stacks */ |
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nginx-0.0.1-2002-08-20-18:48:28 import
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43 addr = mmap(NULL, n * size, PROT_READ|PROT_WRITE, MAP_ANON, -1, NULL); |
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44 if (addr == MAP_FAILED) { |
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45 ngx_log_error(NGX_LOG_ERR, log, ngx_errno, |
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46 "ngx_create_os_thread_stacks: mmap failed"); |
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nginx-0.0.1-2002-08-20-18:48:28 import
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47 return -1; |
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48 } |
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49 |
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50 nxg_stacks_start = addr; |
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51 nxg_stacks_end = addr + n * size; |
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52 nxg_stack_size = size; |
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53 |
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54 /* create thread errno array */ |
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55 ngx_test_null(errnos, ngx_calloc(n * sizeof(int)), -1); |
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56 |
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57 /* create thread tid array */ |
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58 ngx_test_null(ngx_os_tids, ngx_calloc(n * sizeof(ngx_os_tid_t)), -1); |
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59 |
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60 /* allow spinlock in malloc() */ |
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61 __isthreaded = 1; |
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62 |
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63 return 0; |
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64 } |