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annotate src/os/unix/ngx_thread_id.c @ 7660:d33e17499088

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Version bump.
author Maxim Dounin <mdounin@mdounin.ru>
date Tue, 26 May 2020 22:03:00 +0300
parents 466bd63b63d1
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 * Copyright (C) Nginx, Inc.
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_thread_pool.h>
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11
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12
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13 #if (NGX_LINUX)
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14
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15 /*
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16 * Linux thread id is a pid of thread created by clone(2),
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17 * glibc does not provide a wrapper for gettid().
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18 */
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19
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20 ngx_tid_t
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21 ngx_thread_tid(void)
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22 {
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23 return syscall(SYS_gettid);
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24 }
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25
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26 #elif (NGX_FREEBSD) && (__FreeBSD_version >= 900031)
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27
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28 #include <pthread_np.h>
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29
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30 ngx_tid_t
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31 ngx_thread_tid(void)
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32 {
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33 return pthread_getthreadid_np();
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34 }
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35
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36 #elif (NGX_DARWIN)
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37
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38 /*
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39 * MacOSX thread has two thread ids:
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40 *
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41 * 1) MacOSX 10.6 (Snow Leoprad) has pthread_threadid_np() returning
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42 * an uint64_t value, which is obtained using the __thread_selfid()
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43 * syscall. It is a number above 300,000.
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44 */
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45
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46 ngx_tid_t
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47 ngx_thread_tid(void)
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48 {
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49 uint64_t tid;
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50
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51 (void) pthread_threadid_np(NULL, &tid);
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52 return tid;
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53 }
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54
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55 /*
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56 * 2) Kernel thread mach_port_t returned by pthread_mach_thread_np().
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57 * It is a number in range 100-100,000.
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58 *
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59 * return pthread_mach_thread_np(pthread_self());
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60 */
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61
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62 #else
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63
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64 ngx_tid_t
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65 ngx_thread_tid(void)
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66 {
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67 return (uint64_t) (uintptr_t) pthread_self();
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68 }
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69
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70 #endif