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Code

tevent: define TEVENT_NUM_SIGNALS based on configure checks

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Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This commit is contained in:
Stefan Metzmacher 2013-02-22 14:26:16 +01:00 committed by Jeremy Allison
parent 602cd7f6c6
commit d5f9257108
3 changed files with 46 additions and 2 deletions
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29
lib/tevent/libtevent.m4
View File

@ -39,6 +39,35 @@ if test x"$ac_cv_header_sys_epoll_h" = x"yes" -a x"$ac_cv_func_epoll_create" = x
AC_DEFINE(HAVE_EPOLL, 1, [Whether epoll available])
fi
tevent_num_signals_includes="$ac_includes_default
#include <signal.h>
"
tevent_num_signals=64
AC_CHECK_VALUEOF(NSIG, [$tevent_num_signals_includes])
v=$ac_cv_valueof_NSIG
test -n "$v" && test "$v" -gt "$tevent_num_signals" && {
tevent_num_signals=$v
}
AC_CHECK_VALUEOF(_NSIG, [$tevent_num_signals_includes])
v=$ac_cv_valueof__NSIG
test -n "$v" && test "$v" -gt "$tevent_num_signals" && {
tevent_num_signals=$v
}
AC_CHECK_VALUEOF(SIGRTMAX, [$tevent_num_signals_includes])
v=$ac_cv_valueof_SIGRTMAX
test -n "$v" && test "$v" -gt "$tevent_num_signals" && {
tevent_num_signals=$v
}
AC_CHECK_VALUEOF(SIGRTMIN, [$tevent_num_signals_includes])
v=$ac_cv_valueof_SIGRTMIN
test -n "$v" && {
v=`expr $v + $v`
}
test -n "$v" && test "$v" -gt "$tevent_num_signals" && {
tevent_num_signals=$v
}
AC_DEFINE_UNQUOTED(TEVENT_NUM_SIGNALS, $tevent_num_signals, [Max signal number value])
if test x"$VERSIONSCRIPT" != "x"; then
EXPORTSFILE=tevent.exports
AC_SUBST(EXPORTSFILE)

2
lib/tevent/tevent_signal.c
View File

@ -30,8 +30,6 @@
#include "tevent_internal.h"
#include "tevent_util.h"
#define TEVENT_NUM_SIGNALS 64
/* maximum number of SA_SIGINFO signals to hold in the queue.
NB. This *MUST* be a power of 2, in order for the ring buffer
wrap to work correctly. Thanks to Petr Vandrovec <petr@vandrovec.name>

17
lib/tevent/wscript
View File

@ -44,6 +44,23 @@ def configure(conf):
if conf.CHECK_FUNCS('epoll_create', headers='sys/epoll.h'):
conf.DEFINE('HAVE_EPOLL', 1)
tevent_num_signals = 64
v = conf.CHECK_VALUEOF('NSIG', headers='signal.h')
if v is not None:
tevent_num_signals = max(tevent_num_signals, v)
v = conf.CHECK_VALUEOF('_NSIG', headers='signal.h')
if v is not None:
tevent_num_signals = max(tevent_num_signals, v)
v = conf.CHECK_VALUEOF('SIGRTMAX', headers='signal.h')
if v is not None:
tevent_num_signals = max(tevent_num_signals, v)
v = conf.CHECK_VALUEOF('SIGRTMIN', headers='signal.h')
if v is not None:
tevent_num_signals = max(tevent_num_signals, v*2)
if not conf.CONFIG_SET('USING_SYSTEM_TEVENT'):
conf.DEFINE('TEVENT_NUM_SIGNALS', tevent_num_signals)
conf.env.disable_python = getattr(Options.options, 'disable_python', False)
if not conf.env.disable_python: