Mercurial > hg > nginx
annotate src/os/unix/ngx_thread_id.c @ 6791:cb4a4e9bba8e
Perl: fixed optimization in SSI command handler.
As the pointer to the first argument was tested instead of the argument
itself, array of arguments was always created, even if there were no
arguments. Fix is to test args[0] instead of args.
Found by Coverity (CID 1356862).
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Tue, 01 Nov 2016 20:39:21 +0300 |
parents | 466bd63b63d1 |
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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 |