qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [PATCH v2 18/39] tests/qtest: libqtest: Install signal handler via s


From: Marc-André Lureau
Subject: Re: [PATCH v2 18/39] tests/qtest: libqtest: Install signal handler via signal()
Date: Thu, 22 Sep 2022 21:55:44 +0200

Hi

On Tue, Sep 20, 2022 at 2:32 PM Bin Meng <bmeng.cn@gmail.com> wrote:
From: Bin Meng <bin.meng@windriver.com>

At present the codes uses sigaction() to install signal handler with
a flag SA_RESETHAND. Such usage can be covered by the signal() API
that is a simplified interface to the general sigaction() facility.

Update to use signal() to install the signal handler, as it is
available on Windows which we are going to support.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
---

(no changes since v1)

 tests/qtest/libqtest.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/tests/qtest/libqtest.c b/tests/qtest/libqtest.c
index 8b804faade..f46a21fa45 100644
--- a/tests/qtest/libqtest.c
+++ b/tests/qtest/libqtest.c
@@ -66,7 +66,7 @@ struct QTestState
 };

 static GHookList abrt_hooks;
-static struct sigaction sigact_old;
+static sighandler_t sighandler_old;

 static int qtest_query_target_endianness(QTestState *s);

@@ -179,20 +179,12 @@ static void sigabrt_handler(int signo)

 static void setup_sigabrt_handler(void)
 {
-    struct sigaction sigact;
-
-    /* Catch SIGABRT to clean up on g_assert() failure */
-    sigact = (struct sigaction){
-        .sa_handler = sigabrt_handler,
-        .sa_flags = SA_RESETHAND,
-    };
-    sigemptyset(&sigact.sa_mask);
-    sigaction(SIGABRT, &sigact, &sigact_old);
+    sighandler_old = signal(SIGABRT, sigabrt_handler);
 }

 static void cleanup_sigabrt_handler(void)
 {
-    sigaction(SIGABRT, &sigact_old, NULL);
+    signal(SIGABRT, sighandler_old);

I would rather make the usage of signal() specific to WIN32, but it's up to the maintainers to decide what's best.

Thomas, Laurent, opinions?


--
Marc-André Lureau

reply via email to

[Prev in Thread] Current Thread [Next in Thread]