Mercurial > hg > nginx
annotate auto/cc/gcc @ 8045:aa28c802409f
Resolver: make TCP write timer event cancelable.
Similar to 70e65bf8dfd7, the change is made to ensure that the ability to
cancel resolver tasks is fully controlled by the caller. As mentioned in the
referenced commit, it is safe to make this timer cancelable because resolve
tasks can have their own timeouts that are not cancelable.
The scenario where this may become a problem is a periodic background resolve
task (not tied to a specific request or a client connection), which receives a
response with short TTL, large enough to warrant fallback to a TCP query.
With each event loop wakeup, we either have a previously set write timer
instance or schedule a new one. The non-cancelable write timer can delay or
block graceful shutdown of a worker even if the ngx_resolver_ctx_t->cancelable
flag is set by the API user, and there are no other tasks or connections.
We use the resolver API in this way to maintain the list of upstream server
addresses specified with the 'resolve' parameter, and there could be third-party
modules implementing similar logic.
author | Aleksei Bavshin <a.bavshin@f5.com> |
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date | Wed, 01 Jun 2022 20:17:23 -0700 |
parents | 9eefb38f0005 |
children |
rev | line source |
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455 | 1 |
2 # Copyright (C) Igor Sysoev | |
4412 | 3 # Copyright (C) Nginx, Inc. |
455 | 4 |
5 | |
501 | 6 # gcc 2.7.2.3, 2.8.1, 2.95.4, egcs-1.1.2 |
497 | 7 # 3.0.4, 3.1.1, 3.2.3, 3.3.2, 3.3.3, 3.3.4, 3.4.0, 3.4.2 |
521 | 8 # 4.0.0, 4.0.1, 4.1.0 |
501 | 9 |
10 | |
11 NGX_GCC_VER=`$CC -v 2>&1 | grep 'gcc version' 2>&1 \ | |
12 | sed -e 's/^.* version \(.*\)/\1/'` | |
13 | |
14 echo " + gcc version: $NGX_GCC_VER" | |
455 | 15 |
557 | 16 have=NGX_COMPILER value="\"gcc $NGX_GCC_VER\"" . auto/define |
17 | |
455 | 18 |
19 # Solaris 7's /usr/ccs/bin/as does not support "-pipe" | |
20 | |
21 CC_TEST_FLAGS="-pipe" | |
22 | |
577 | 23 ngx_feature="gcc -pipe switch" |
455 | 24 ngx_feature_name= |
25 ngx_feature_run=no | |
26 ngx_feature_incs= | |
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test PCRE in FreeBSD, Linux, and NetBSD
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parents:
743
diff
changeset
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27 ngx_feature_path= |
455 | 28 ngx_feature_libs= |
29 ngx_feature_test= | |
30 . auto/feature | |
31 | |
32 CC_TEST_FLAGS= | |
33 | |
34 if [ $ngx_found = yes ]; then | |
35 PIPE="-pipe" | |
36 fi | |
37 | |
561 | 38 |
581 | 39 case "$NGX_MACHINE" in |
561 | 40 |
743 | 41 sun4u | sun4v | sparc | sparc64 ) |
563 | 42 # "-mcpu=v9" enables the "casa" assembler instruction |
561 | 43 CFLAGS="$CFLAGS -mcpu=v9" |
44 ;; | |
45 | |
46 esac | |
47 | |
48 | |
455 | 49 # optimizations |
50 | |
487 | 51 #NGX_GCC_OPT="-O2" |
52 #NGX_GCC_OPT="-Os" | |
53 NGX_GCC_OPT="-O" | |
54 | |
55 #CFLAGS="$CFLAGS -fomit-frame-pointer" | |
455 | 56 |
57 case $CPU in | |
58 pentium) | |
59 # optimize for Pentium and Athlon | |
60 CPU_OPT="-march=pentium" | |
589 | 61 NGX_CPU_CACHE_LINE=32 |
455 | 62 ;; |
63 | |
561 | 64 pentiumpro | pentium3) |
455 | 65 # optimize for Pentium Pro, Pentium II and Pentium III |
66 CPU_OPT="-march=pentiumpro" | |
589 | 67 NGX_CPU_CACHE_LINE=32 |
455 | 68 ;; |
69 | |
70 pentium4) | |
71 # optimize for Pentium 4, gcc 3.x | |
72 CPU_OPT="-march=pentium4" | |
589 | 73 NGX_CPU_CACHE_LINE=128 |
455 | 74 ;; |
75 | |
521 | 76 athlon) |
77 # optimize for Athlon, gcc 3.x | |
78 CPU_OPT="-march=athlon" | |
589 | 79 NGX_CPU_CACHE_LINE=64 |
521 | 80 ;; |
81 | |
509 | 82 opteron) |
83 # optimize for Opteron, gcc 3.x | |
84 CPU_OPT="-march=opteron" | |
589 | 85 NGX_CPU_CACHE_LINE=64 |
509 | 86 ;; |
87 | |
581 | 88 sparc32) |
89 # build 32-bit UltraSparc binary | |
90 CPU_OPT="-m32" | |
91 CORE_LINK="$CORE_LINK -m32" | |
589 | 92 NGX_CPU_CACHE_LINE=64 |
581 | 93 ;; |
94 | |
455 | 95 sparc64) |
96 # build 64-bit UltraSparc binary | |
97 CPU_OPT="-m64" | |
98 CORE_LINK="$CORE_LINK -m64" | |
589 | 99 NGX_CPU_CACHE_LINE=64 |
455 | 100 ;; |
101 | |
613 | 102 ppc64) |
103 # build 64-bit PowerPC binary | |
104 CPU_OPT="-m64" | |
105 CPU_OPT="$CPU_OPT -falign-functions=32 -falign-labels=32" | |
106 CPU_OPT="$CPU_OPT -falign-loops=32 -falign-jumps=32" | |
107 CORE_LINK="$CORE_LINK -m64" | |
108 NGX_CPU_CACHE_LINE=128 | |
109 ;; | |
110 | |
455 | 111 esac |
112 | |
3362
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GCC 4.1 builtin atomic operations
Igor Sysoev <igor@sysoev.ru>
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113 CC_AUX_FLAGS="$CC_AUX_FLAGS $CPU_OPT" |
455 | 114 |
501 | 115 case "$NGX_GCC_VER" in |
116 2.7*) | |
117 # batch build | |
118 CPU_OPT= | |
119 ;; | |
120 esac | |
455 | 121 |
122 | |
123 CFLAGS="$CFLAGS $PIPE $CPU_OPT" | |
124 | |
125 if [ ".$PCRE_OPT" = "." ]; then | |
126 PCRE_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT" | |
127 else | |
128 PCRE_OPT="$PCRE_OPT $PIPE" | |
129 fi | |
130 | |
131 if [ ".$ZLIB_OPT" = "." ]; then | |
132 ZLIB_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT" | |
133 else | |
134 ZLIB_OPT="$ZLIB_OPT $PIPE" | |
135 fi | |
136 | |
137 | |
138 # warnings | |
139 | |
487 | 140 # -W requires at least -O |
1010 | 141 CFLAGS="$CFLAGS ${NGX_GCC_OPT:--O} -W" |
487 | 142 |
455 | 143 CFLAGS="$CFLAGS -Wall -Wpointer-arith" |
577 | 144 #CFLAGS="$CFLAGS -Wconversion" |
455 | 145 #CFLAGS="$CFLAGS -Winline" |
4760
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Added a commented out -Wmissing-prototypes to CFLAGS.
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146 #CFLAGS="$CFLAGS -Wmissing-prototypes" |
455 | 147 |
6583
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Configure: revised GCC version processing.
Sergey Kandaurov <pluknet@nginx.com>
parents:
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148 case "$NGX_GCC_VER" in |
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149 2.*) |
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150 # we have a lot of the unused function arguments |
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151 CFLAGS="$CFLAGS -Wno-unused" |
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152 ;; |
501 | 153 |
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154 *) |
501 | 155 # we have a lot of the unused function arguments |
156 CFLAGS="$CFLAGS -Wno-unused-parameter" | |
2751 | 157 # 4.2.1 shows the warning in wrong places |
501 | 158 #CFLAGS="$CFLAGS -Wunreachable-code" |
5714
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Configure: added -Wno-deprecated-declarations on OS X.
Maxim Dounin <mdounin@mdounin.ru>
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159 |
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Configure: added -Wno-deprecated-declarations on OS X.
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160 # deprecated system OpenSSL library on OS X |
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Configure: added -Wno-deprecated-declarations on OS X.
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161 if [ "$NGX_SYSTEM" = "Darwin" ]; then |
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162 CFLAGS="$CFLAGS -Wno-deprecated-declarations" |
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Configure: added -Wno-deprecated-declarations on OS X.
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parents:
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163 fi |
501 | 164 ;; |
165 esac | |
166 | |
455 | 167 |
168 # stop on warning | |
169 CFLAGS="$CFLAGS -Werror" | |
170 | |
171 # debug | |
172 CFLAGS="$CFLAGS -g" | |
173 | |
174 # DragonFly's gcc3 generates DWARF | |
175 #CFLAGS="$CFLAGS -g -gstabs" | |
176 | |
177 if [ ".$CPP" = "." ]; then | |
178 CPP="$CC -E" | |
179 fi |