Mercurial > hg > nginx

annotate src/os/unix/ngx_freebsd_rfork_thread.c @ 85:3549c2bf9eaf

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nginx-0.0.1-2003-05-07-21:32:45 import
author Igor Sysoev <igor@sysoev.ru>
date Wed, 07 May 2003 17:32:45 +0000
parents fab4cb00fe5b
children 3973260705cc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
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1
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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2 #include <ngx_config.h>
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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3 #include <ngx_core.h>
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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parents: 3
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4 #include <ngx_process.h>
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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5 #include <ngx_log.h>
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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6 #include <ngx_alloc.h>
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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9 extern int __isthreaded;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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12 typedef int ngx_tid_t;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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3549c2bf9eaf nginx-0.0.1-2003-05-07-21:32:45 import
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14 #define NGX_MAX_THREADS 10
3549c2bf9eaf nginx-0.0.1-2003-05-07-21:32:45 import
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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17 static inline int ngx_gettid();
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34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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20 static char *stacks_start;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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21 static char *stacks_end;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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22 static size_t stack_size;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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23 static char *last_stack;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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24 static int last_thread;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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26 static ngx_log_t *log;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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3549c2bf9eaf nginx-0.0.1-2003-05-07-21:32:45 import
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28 static ngx_tid_t tids[NGX_MAX_THREADS];
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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30 static int red_zone = 4096;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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33 /* the thread-safe errno */
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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3549c2bf9eaf nginx-0.0.1-2003-05-07-21:32:45 import
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35 static int errnos[NGX_MAX_THREADS];
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34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
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37 int *__error()
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
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38 {
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3549c2bf9eaf nginx-0.0.1-2003-05-07-21:32:45 import
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39 return &errnos[ngx_gettid()];
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
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40 }
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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42
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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43 int ngx_create_thread(ngx_tid_t *tid, int (*func)(void *arg), void *arg)
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34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
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44 {
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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45 int id, err;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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46 char *stack_top;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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47
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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48 last_stack += stack_size;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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49 stack_top = last_stack - red_zone;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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50
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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51 if (stack_top > stacks_end) {
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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52 ngx_log_error(NGX_LOG_CRIT, log, 0, "no more threads allocated");
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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53 return NGX_ERROR;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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54 }
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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56 #if 0
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3549c2bf9eaf nginx-0.0.1-2003-05-07-21:32:45 import
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57 id = rfork(RFFDG|RFCFDG);
3549c2bf9eaf nginx-0.0.1-2003-05-07-21:32:45 import
Igor Sysoev <igor@sysoev.ru>
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58 #elif 0
3549c2bf9eaf nginx-0.0.1-2003-05-07-21:32:45 import
Igor Sysoev <igor@sysoev.ru>
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59 id = rfork_thread(RFFDG|RFCFDG, stack_top, func, arg);
3549c2bf9eaf nginx-0.0.1-2003-05-07-21:32:45 import
Igor Sysoev <igor@sysoev.ru>
parents: 84
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60 #elif 0
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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61 id = rfork_thread(RFPROC|RFMEM, stack_top, func, arg);
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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62 #else
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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63 id = rfork_thread(RFPROC|RFTHREAD|RFMEM, stack_top, func, arg);
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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64 #endif
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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65 err = errno;
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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66
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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67 if (id == -1) {
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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68 ngx_log_error(NGX_LOG_ALERT, log, err, "rfork() failed");
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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69
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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70 } else {
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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71 *tid = id;
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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72 tids[last_thread++] = id;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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73
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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74 /* allow the spinlock in libc malloc() */
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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75 __isthreaded = 1;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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76 }
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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77
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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78 return err;
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
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79 }
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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81
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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82 int ngx_init_thread_env(int n, size_t size, ngx_log_t *lg)
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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83 {
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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84 int len, i;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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85 char *usrstack, *zone;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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86
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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87 log = lg;
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
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88
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fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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89 /* create the thread stacks */
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
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90
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
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91 len = 4;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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92 if (sysctlbyname("kern.usrstack", &usrstack, &len, NULL, 0) == -1) {
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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93 ngx_log_error(NGX_LOG_ALERT, log, errno,
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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94 "sysctlbyname(kern.usrstack) failed");
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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95 return NGX_ERROR;
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
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96 }
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
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97
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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98 printf("usrstack: %08X\n", usrstack);
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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99 printf("red zone: %08X\n", usrstack - (size + red_zone));
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
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100
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
101 #if 1
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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102 /* red zone */
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
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103 zone = mmap(usrstack - (size + red_zone), red_zone,
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
104 PROT_NONE, MAP_ANON, -1, 0);
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
105 if (zone == MAP_FAILED) {
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
106 ngx_log_error(NGX_LOG_ALERT, log, errno,
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
107 "mmap(%d, PROT_NONE, MAP_ANON) failed", red_zone);
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
108 return NGX_ERROR;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
109 }
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
110 #else
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
111 zone = usrstack - (size + red_zone);
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
112 #endif
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
113
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
114 last_stack = zone + red_zone;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
115
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
116 for (i = 0; i < n; i++) {
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
117 last_stack -= size + red_zone;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
118 printf("stack: %08X\n", last_stack);
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
119 last_stack = mmap(last_stack, size, PROT_READ|PROT_WRITE,
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
120 MAP_STACK, -1, 0);
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
121 if (last_stack == MAP_FAILED) {
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
122 ngx_log_error(NGX_LOG_ALERT, log, errno,
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
123 "mmap(%d, MAP_STACK) failed", size);
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
124 return NGX_ERROR;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
125 }
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
126 }
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
127
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
128 stacks_start = last_stack;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
129 stack_size = size + red_zone;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
130 stacks_end = stacks_start + n * stack_size;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
131
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
132 tids[0] = ngx_getpid();
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
133 last_thread = 1;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
134
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
135 return NGX_OK;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
136 }
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
137
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
138
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
139 ngx_tid_t ngx_thread_self()
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
140 {
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
141 return tids[ngx_gettid()];
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
142 }
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
143
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
144
84
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
145 static inline int ngx_gettid()
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
146 {
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
147 char *sp;
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
148
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
149 __asm__ ("mov %%esp, %0" : "=q" (sp));
fab4cb00fe5b nginx-0.0.1-2003-05-06-21:03:16 import
Igor Sysoev <igor@sysoev.ru>
parents: 3
diff changeset
150
85
3549c2bf9eaf nginx-0.0.1-2003-05-07-21:32:45 import
Igor Sysoev <igor@sysoev.ru>
parents: 84
diff changeset
151 return (sp > stacks_end) ? 0 : ((sp - stacks_start) / stack_size + 1);
3
34a521b1a148 nginx-0.0.1-2002-08-20-18:48:28 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
152 }