Mercurial > hg > nginx
annotate src/os/unix/ngx_thread_id.c @ 7441:8acaa1161783
Stream: do not split datagrams when limiting proxy rate.
Previously, when using proxy_upload_rate and proxy_download_rate, the buffer
size for reading from a socket could be reduced as a result of rate limiting.
For connection-oriented protocols this behavior is normal since unread data will
normally be read at the next iteration. But for datagram-oriented protocols
this is not the case, and unread part of the datagram is lost.
Now buffer size is not limited for datagrams. Rate limiting still works in this
case by delaying the next reading event.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Thu, 27 Dec 2018 19:37:34 +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 |