Mercurial > hg > nginx
annotate auto/os/darwin @ 7098:7bfbf73db920
Stream: relaxed next upstream condition (ticket #1317).
When switching to a next upstream, some buffers could be stuck in the middle
of the filter chain. A condition existed that raised an error when this
happened. As it turned out, this condition prevented switching to a next
upstream if ssl preread was used with the TCP protocol (see the ticket).
In fact, the condition does not make sense for TCP, since after successful
connection to an upstream switching to another upstream never happens. As for
UDP, the issue with stuck buffers is unlikely to happen, but is still possible.
Specifically, if a filter delays sending data to upstream.
The condition can be relaxed to only check the "buffered" bitmask of the
upstream connection. The new condition is simpler and fixes the ticket issue
as well. Additionally, the upstream_out chain is now reset for UDP prior to
connecting to a new upstream to prevent repeating the client data twice.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Mon, 11 Sep 2017 15:32:31 +0300 |
parents | 9fb994513776 |
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1 |
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2 # Copyright (C) Igor Sysoev |
4412 | 3 # Copyright (C) Nginx, Inc. |
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5 |
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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 $DARWIN_SRCS" |
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11 |
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12 |
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13 |
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14 ngx_spacer=' |
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15 ' |
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16 |
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18 MODULE_LINK="-shared -Wl,-undefined,dynamic_lookup" | |
19 | |
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20 CC_AUX_FLAGS="$CC_AUX_FLAGS -D__APPLE_USE_RFC_3542" |
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21 |
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22 |
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23 # kqueue |
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24 |
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25 echo " + kqueue found" |
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26 have=NGX_HAVE_KQUEUE . auto/have |
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27 have=NGX_HAVE_CLEAR_EVENT . auto/have |
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28 EVENT_MODULES="$EVENT_MODULES $KQUEUE_MODULE" |
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29 CORE_SRCS="$CORE_SRCS $KQUEUE_SRCS" |
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30 EVENT_FOUND=YES |
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31 NGX_KQUEUE_CHECKED=YES |
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32 |
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33 ngx_feature="kqueue's EVFILT_TIMER" |
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34 ngx_feature_name="NGX_HAVE_TIMER_EVENT" |
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35 ngx_feature_run=yes |
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36 ngx_feature_incs="#include <sys/event.h> |
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37 #include <sys/time.h>" |
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38 ngx_feature_path= |
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39 ngx_feature_libs= |
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40 ngx_feature_test="int kq; |
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41 struct kevent kev; |
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42 struct timespec ts; |
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43 |
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44 if ((kq = kqueue()) == -1) return 1; |
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45 |
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46 kev.ident = 0; |
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47 kev.filter = EVFILT_TIMER; |
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48 kev.flags = EV_ADD|EV_ENABLE; |
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49 kev.fflags = 0; |
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50 kev.data = 1000; |
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51 kev.udata = 0; |
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52 |
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53 ts.tv_sec = 0; |
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54 ts.tv_nsec = 0; |
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55 |
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56 if (kevent(kq, &kev, 1, &kev, 1, &ts) == -1) return 1; |
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57 |
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58 if (kev.flags & EV_ERROR) return 1;" |
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59 |
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60 . auto/feature |
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61 |
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62 |
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63 ngx_feature="Darwin 64-bit kqueue millisecond timeout bug" |
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64 ngx_feature_name=NGX_DARWIN_KEVENT_BUG |
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65 ngx_feature_run=bug |
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66 ngx_feature_incs="#include <sys/event.h> |
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67 #include <sys/time.h>" |
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68 ngx_feature_path= |
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69 ngx_feature_libs= |
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70 ngx_feature_test="int kq; |
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71 struct kevent kev; |
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72 struct timespec ts; |
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73 struct timeval tv, tv0; |
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74 |
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75 kq = kqueue(); |
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76 |
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77 ts.tv_sec = 0; |
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78 ts.tv_nsec = 999000000; |
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79 |
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80 gettimeofday(&tv, 0); |
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81 kevent(kq, NULL, 0, &kev, 1, &ts); |
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82 gettimeofday(&tv0, 0); |
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83 timersub(&tv0, &tv, &tv); |
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84 |
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85 if (tv.tv_sec * 1000000 + tv.tv_usec < 900000) return 1;" |
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86 |
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87 . auto/feature |
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88 |
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89 |
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90 # sendfile() |
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91 |
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92 ngx_feature="sendfile()" |
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93 ngx_feature_name="NGX_HAVE_SENDFILE" |
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94 ngx_feature_run=yes |
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95 ngx_feature_incs="#include <sys/types.h> |
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96 #include <sys/socket.h> |
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97 #include <sys/uio.h> |
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98 #include <sys/errno.h>" |
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99 ngx_feature_path= |
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100 ngx_feature_libs= |
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101 ngx_feature_test="int s = 0, fd = 1; |
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102 off_t n; off_t off = 0; |
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103 n = sendfile(s, fd, off, &n, NULL, 0); |
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104 if (n == -1 && errno == ENOSYS) return 1" |
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105 . auto/feature |
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106 |
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107 if [ $ngx_found = yes ]; then |
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108 CORE_SRCS="$CORE_SRCS $DARWIN_SENDFILE_SRCS" |
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109 fi |
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110 |
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111 |
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112 ngx_feature="atomic(3)" |
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113 ngx_feature_name=NGX_DARWIN_ATOMIC |
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114 ngx_feature_run=no |
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115 ngx_feature_incs="#include <libkern/OSAtomic.h>" |
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116 ngx_feature_path= |
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117 ngx_feature_libs= |
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118 ngx_feature_test="int32_t lock = 0; |
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119 if (!OSAtomicCompareAndSwap32Barrier(0, 1, &lock)) return 1" |
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120 . auto/feature |