From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Jackson Subject: [PATCH 08/18] libxl: fork: Provide LIBXL_HAVE_SIGCHLD_SELECTIVE_REAP Date: Mon, 3 Feb 2014 16:14:41 +0000 Message-ID: <1391444091-22796-9-git-send-email-ian.jackson@eu.citrix.com> References: <1391444091-22796-1-git-send-email-ian.jackson@eu.citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1391444091-22796-1-git-send-email-ian.jackson@eu.citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xensource.com Cc: George Dunlap , Jim Fehlig , Ian Jackson , Ian Campbell List-Id: xen-devel@lists.xenproject.org This is the feature test macro for libxl_childproc_sigchld_occurred and libxl_sigchld_owner_libxl_always_selective_reap. It is split out into this separate patch because: a single feature test is sensible because we do not intend anyone to release or ship libxl versions with one of these but not the other; but, the two features are in separate patches for clarity; and, this just makes reading the actual code easier. Signed-off-by: Ian Jackson Cc: Jim Fehlig Cc: Ian Campbell --- tools/libxl/libxl.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h index 12d6c31..1ac34c3 100644 --- a/tools/libxl/libxl.h +++ b/tools/libxl/libxl.h @@ -409,6 +409,19 @@ */ #define LIBXL_HAVE_DRIVER_DOMAIN_CREATION 1 +/* + * LIBXL_HAVE_SIGCHLD_SELECTIVE_REAP + * + * If this is defined: + * + * Firstly, the enum libxl_sigchld_owner (in libxl_event.h) has the + * value libxl_sigchld_owner_libxl_always_selective_reap which may be + * passed to libxl_childproc_setmode in hooks->chldmode. + * + * Secondly, the function libxl_childproc_sigchld_occurred exists. + */ +#define LIBXL_HAVE_SIGCHLD_OWNER_SELECTIVE_REAP 1 + /* Functions annotated with LIBXL_EXTERNAL_CALLERS_ONLY may not be * called from within libxl itself. Callers outside libxl, who * do not #include libxl_internal.h, are fine. */ -- 1.7.10.4