Mercurial > hg > nginx

annotate auto/endianess @ 3293:8abb88374c6c

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Fix a bug introduced in r2032: After a child process has read a terminate message from a channel, the process tries to read the channel again. The kernel (at least FreeBSD) may preempt the process and sends a SIGIO signal to a master process. The master process sends a new terminate message, the kernel switches again to the the child process, and the child process reads the messages instead of an EAGAIN error. And this may repeat over and over. Being that the child process can not exit the cycle and test the termination flag set by the message handler. The fix disallow the master process to send a new terminate message on SIGIO signal reception. It may send the message only on SIGALARM signal.
author Igor Sysoev <igor@sysoev.ru>
date Wed, 04 Nov 2009 19:41:08 +0000
parents 694d285ec752
children d620f497c50f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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2 # Copyright (C) Igor Sysoev
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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295d97d70c69 nginx-0.1.2-RELEASE import
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5 echo $ngx_n "checking for system endianess ...$ngx_c"
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54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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6 echo >> $NGX_ERR
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7 echo "checking for system endianess" >> $NGX_ERR
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54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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10 cat << END > $NGX_AUTOTEST.c
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54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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12 int main() {
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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13 int i = 0x11223344;
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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14 char *p;
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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16 p = (char *) &i;
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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17 if (*p == 0x44) return 0;
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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18 return 1;
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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19 }
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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21 END
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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4e296b7d25bf nginx-0.3.13-RELEASE import
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23 ngx_test="$CC $CC_TEST_FLAGS $CC_AUX_FLAGS \
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4d9ea73a627a nginx-0.3.10-RELEASE import
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24 -o $NGX_AUTOTEST $NGX_AUTOTEST.c $NGX_LD_OPT $ngx_feature_libs"
4d9ea73a627a nginx-0.3.10-RELEASE import
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4d9ea73a627a nginx-0.3.10-RELEASE import
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26 eval "$ngx_test >> $NGX_AUTOCONF_ERR 2>&1"
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54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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28 if [ -x $NGX_AUTOTEST ]; then
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694d285ec752 fix ">/dev/null 2>&1" order
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29 if $NGX_AUTOTEST >/dev/null 2>&1; then
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54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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30 echo " little endianess"
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2ff194b74f1e nginx-0.1.9-RELEASE import
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31 have=NGX_HAVE_LITTLE_ENDIAN . auto/have
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32 else
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33 echo " big endianess"
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34 fi
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36 rm $NGX_AUTOTEST*
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54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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38 else
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39 rm $NGX_AUTOTEST*
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41 echo
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42 echo "$0: error: can not detect system endianess"
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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43 exit 1
54f76b0b8dca nginx-0.0.7-2004-06-27-22:01:57 import
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44 fi