Mercurial > hg > nginx
annotate auto/os/darwin @ 6153:4f6efabcb09b
The "reuseport" option of the "listen" directive.
When configured, an individual listen socket on a given address is
created for each worker process. This allows to reduce in-kernel lock
contention on configurations with high accept rates, resulting in better
performance. As of now it works on Linux and DragonFly BSD.
Note that on Linux incoming connection requests are currently tied up
to a specific listen socket, and if some sockets are closed, connection
requests will be reset, see https://lwn.net/Articles/542629/. With
nginx, this may happen if the number of worker processes is reduced.
There is no such problem on DragonFly BSD.
Based on previous work by Sepherosa Ziehau and Yingqi Lu.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Wed, 20 May 2015 15:51:56 +0300 |
parents | 79b473d5381d |
children | 85dea406e18f |
rev | line source |
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2 # Copyright (C) Igor Sysoev |
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6 have=NGX_DARWIN . auto/have_headers |
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7 |
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8 CORE_INCS="$UNIX_INCS" |
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9 CORE_DEPS="$UNIX_DEPS $DARWIN_DEPS" |
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10 CORE_SRCS="$UNIX_SRCS $DARWIN_SRCS" |
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13 |
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14 ngx_spacer=' |
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15 ' |
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16 |
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17 # kqueue |
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18 |
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19 echo " + kqueue found" |
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20 have=NGX_HAVE_KQUEUE . auto/have |
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21 have=NGX_HAVE_CLEAR_EVENT . auto/have |
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22 EVENT_MODULES="$EVENT_MODULES $KQUEUE_MODULE" |
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23 CORE_SRCS="$CORE_SRCS $KQUEUE_SRCS" |
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24 EVENT_FOUND=YES |
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25 NGX_KQUEUE_CHECKED=YES |
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26 |
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27 ngx_feature="kqueue's EVFILT_TIMER" |
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28 ngx_feature_name="NGX_HAVE_TIMER_EVENT" |
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29 ngx_feature_run=yes |
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30 ngx_feature_incs="#include <sys/event.h> |
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31 #include <sys/time.h>" |
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32 ngx_feature_path= |
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33 ngx_feature_libs= |
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34 ngx_feature_test="int kq; |
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35 struct kevent kev; |
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36 struct timespec ts; |
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37 |
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38 if ((kq = kqueue()) == -1) return 1; |
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39 |
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40 kev.ident = 0; |
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41 kev.filter = EVFILT_TIMER; |
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42 kev.flags = EV_ADD|EV_ENABLE; |
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43 kev.fflags = 0; |
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44 kev.data = 1000; |
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45 kev.udata = 0; |
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46 |
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47 ts.tv_sec = 0; |
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48 ts.tv_nsec = 0; |
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49 |
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50 if (kevent(kq, &kev, 1, &kev, 1, &ts) == -1) return 1; |
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51 |
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52 if (kev.flags & EV_ERROR) return 1;" |
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53 |
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54 . auto/feature |
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55 |
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56 |
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57 ngx_feature="Darwin 64-bit kqueue millisecond timeout bug" |
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58 ngx_feature_name=NGX_DARWIN_KEVENT_BUG |
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59 ngx_feature_run=bug |
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60 ngx_feature_incs="#include <sys/event.h> |
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61 #include <sys/time.h>" |
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62 ngx_feature_path= |
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63 ngx_feature_libs= |
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64 ngx_feature_test="int kq; |
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65 struct kevent kev; |
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66 struct timespec ts; |
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67 struct timeval tv, tv0; |
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68 |
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69 kq = kqueue(); |
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70 |
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71 ts.tv_sec = 0; |
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72 ts.tv_nsec = 999000000; |
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73 |
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74 gettimeofday(&tv, 0); |
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75 kevent(kq, NULL, 0, &kev, 1, &ts); |
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76 gettimeofday(&tv0, 0); |
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77 timersub(&tv0, &tv, &tv); |
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78 |
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79 if (tv.tv_sec * 1000000 + tv.tv_usec < 900000) return 1;" |
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80 |
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81 . auto/feature |
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82 |
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83 |
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84 # sendfile() |
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85 |
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86 CC_AUX_FLAGS="$CC_AUX_FLAGS" |
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87 ngx_feature="sendfile()" |
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88 ngx_feature_name="NGX_HAVE_SENDFILE" |
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89 ngx_feature_run=yes |
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90 ngx_feature_incs="#include <sys/types.h> |
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91 #include <sys/socket.h> |
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92 #include <sys/uio.h> |
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93 #include <sys/errno.h>" |
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94 ngx_feature_path= |
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95 ngx_feature_libs= |
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96 ngx_feature_test="int s = 0, fd = 1; |
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97 off_t n; off_t off = 0; |
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98 n = sendfile(s, fd, off, &n, NULL, 0); |
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99 if (n == -1 && errno == ENOSYS) return 1" |
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100 . auto/feature |
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101 |
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102 if [ $ngx_found = yes ]; then |
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103 CORE_SRCS="$CORE_SRCS $DARWIN_SENDFILE_SRCS" |
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104 fi |
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105 |
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106 |
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107 ngx_feature="atomic(3)" |
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108 ngx_feature_name=NGX_DARWIN_ATOMIC |
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109 ngx_feature_run=no |
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110 ngx_feature_incs="#include <libkern/OSAtomic.h>" |
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111 ngx_feature_path= |
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112 ngx_feature_libs= |
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113 ngx_feature_test="int32_t lock, n; |
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114 n = OSAtomicCompareAndSwap32Barrier(0, 1, &lock)" |
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115 . auto/feature |