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r9107@Kushana: nickm | 2006-10-06 02:14:02 -0400

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When eventdns is enabled, we can allow machines with thread-unsafe resolver functions to build multithreaded anyway.


svn:r8608
This commit is contained in:
Nick Mathewson 2006-10-06 15:29:33 +00:00
parent 1d4bd3990f
commit 09a2ec0192
2 changed files with 30 additions and 25 deletions
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3
ChangeLog
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@ -88,6 +88,9 @@ Changes in version 0.1.2.2-alpha - 2006-10-??
- Just because your DirPort is open doesn't mean people should be - Just because your DirPort is open doesn't mean people should be
able to remotely teach you about hidden service descriptors. Now able to remotely teach you about hidden service descriptors. Now
only accept rendezvous posts if you've got HSAuthoritativeDir set. only accept rendezvous posts if you've got HSAuthoritativeDir set.
- When eventdns is enabled, allow multithreaded builds on NetBSD and
OpenBSD. (We had previously disabled threads on these platforms
because they didn't have working thread-safe resolver functions)
o Major bugfixes, other: o Major bugfixes, other:
- Avoiding crashing on race condition in dns.c: - Avoiding crashing on race condition in dns.c:

52
configure.in
View File

@ -19,31 +19,6 @@ AC_ARG_ENABLE(debug,
CFLAGS="$CFLAGS -g" CFLAGS="$CFLAGS -g"
fi]) fi])
AC_ARG_ENABLE(threads,
AC_HELP_STRING(--disable-threads, disable multi-threading support))
if test x$enable_threads = x; then
case $host in
*-*-netbsd* | *-*-openbsd* )
# Don't try multithreading on netbsd -- there is no threadsafe DNS
# lookup function there.
AC_MSG_NOTICE([You are running OpenBSD or NetBSD; I am assuming that
getaddrinfo is not threadsafe here, so I will disable threads.])
enable_threads="no";;
*-*-solaris* )
# Don't try multithreading on solaris -- cpuworkers seem to lock.
AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
cpu workers lock up here, so I will disable threads.])
enable_threads="no";;
*)
enable_threads="yes";;
esac
fi
if test $enable_threads = "yes"; then
AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
fi
AC_ARG_ENABLE(eventdns, AC_ARG_ENABLE(eventdns,
AC_HELP_STRING(--enable-eventdns, enable asynchronous dns module), AC_HELP_STRING(--enable-eventdns, enable asynchronous dns module),
[case "${enableval}" in [case "${enableval}" in
@ -64,6 +39,33 @@ AC_ARG_ENABLE(transparent,
*) AC_MSG_ERROR(bad value for --enable-transparent) ;; *) AC_MSG_ERROR(bad value for --enable-transparent) ;;
esac], [transparent=true]) esac], [transparent=true])
AC_ARG_ENABLE(threads,
AC_HELP_STRING(--disable-threads, disable multi-threading support))
if test x$enable_threads = x; then
case $host in
*-*-netbsd* | *-*-openbsd* )
# Don't try multithreading on netbsd -- there is no threadsafe DNS
# lookup function there.
if test x$eventdns != xtrue; then
AC_MSG_NOTICE([You are running OpenBSD or NetBSD; I am assuming that
getaddrinfo is not threadsafe here, so I will disable threads.])
enable_threads="no"
fi ;;
*-*-solaris* )
# Don't try multithreading on solaris -- cpuworkers seem to lock.
AC_MSG_NOTICE([You are running Solaris; Sometimes threading makes
cpu workers lock up here, so I will disable threads.])
enable_threads="no";;
*)
enable_threads="yes";;
esac
fi
if test $enable_threads = "yes"; then
AC_DEFINE(ENABLE_THREADS, 1, [Defined if we will try to use multithreading])
fi
case $host in case $host in
*-*-solaris* ) *-*-solaris* )
AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h]) AC_DEFINE(_REENTRANT, 1, [Define on some platforms to activate x_r() functions in time.h])