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scd: Use pipe to kick the loop on NetBSD.

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* configure.ac (HAVE_PSELECT_NO_EINTR): New.
* scd/scdaemon.c (scd_kick_the_loop): Write to pipe.
(handle_connections): Use pipe.

--

On NetBSD, signal to the same process cannot unblock pselect,
with unknown reason.  Use pipe instead, for such systems.

GnuPG-bug-id: 3778
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2018-02-07 12:43:07 +09:00
parent f98e193c84
commit 015fe1c47b
2 changed files with 52 additions and 3 deletions
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16
configure.ac
View file

@ -639,6 +639,7 @@ have_android_system=no
use_simple_gettext=no
use_ldapwrapper=yes
mmap_needed=yes
require_pipe_to_unblock_pselect=no
case "${host}" in
*-mingw32*)
# special stuff for Windoze NT
@ -715,10 +716,20 @@ case "${host}" in
AC_DEFINE(_DARWIN_C_SOURCE, 900000L,
Expose all libc features (__DARWIN_C_FULL).)
;;
*-*-netbsd*)
require_pipe_to_unblock_pselect=yes
;;
*)
;;
;;
esac
if test "$require_pipe_to_unblock_pselect" = yes; then
AC_DEFINE(HAVE_PSELECT_NO_EINTR, 1,
[Defined if we run on systems like NetBSD, where
pselect cannot be unblocked by signal from a thread
within the same process. We use pipe in this case, instead.])
fi
if test "$have_dosish_system" = yes; then
AC_DEFINE(HAVE_DOSISH_SYSTEM,1,
[Defined if we run on some of the PCDOS like systems
@ -820,7 +831,8 @@ if test x"$LIBUSB_NAME" != x ; then
have_libusb=yes ])
AC_MSG_CHECKING([libusb include dir])
usb_incdir_found="no"
for _incdir in "" "/usr/include/libusb-1.0" "/usr/local/include/libusb-1.0"; do
for _incdir in "" "/usr/include/libusb-1.0" \
"/usr/local/include/libusb-1.0" "/usr/pkg/include/libusb-1.0"; do
_libusb_save_cppflags=$CPPFLAGS
if test -n "${_incdir}"; then
CPPFLAGS="-I${_incdir} ${CPPFLAGS}"