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authorDaniel P. Berrangé <berrange@redhat.com>2020-08-25 11:38:49 +0100
committerEric Blake <eblake@redhat.com>2020-09-02 16:47:55 -0500
commit6e64dd572aa548aa6664ed02c6901d691f6a10ba (patch)
treec0bfad755c89bd46f249cb5ce2a2373b165a1c22 /qemu-nbd.c
parent98c5d2e7010a60eddeabd057c9e0cd4e3a08f85f (diff)
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nbd: skip SIGTERM handler if NBD device support is not built
The termsig_handler function is used by the client thread handling the host NBD device connection to do a graceful shutdown. IOW, if we have disabled NBD device support at compile time, we don't need the SIGTERM handler. This fixes a build issue for Windows. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20200825103850.119911-3-berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'qemu-nbd.c')
-rw-r--r--qemu-nbd.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/qemu-nbd.c b/qemu-nbd.c
index b102874..dc6ef08 100644
--- a/qemu-nbd.c
+++ b/qemu-nbd.c
@@ -155,12 +155,13 @@ QEMU_COPYRIGHT "\n"
, name);
}
+#if HAVE_NBD_DEVICE
static void termsig_handler(int signum)
{
atomic_cmpxchg(&state, RUNNING, TERMINATE);
qemu_notify_event();
}
-
+#endif /* HAVE_NBD_DEVICE */
static int qemu_nbd_client_list(SocketAddress *saddr, QCryptoTLSCreds *tls,
const char *hostname)
@@ -587,6 +588,7 @@ int main(int argc, char **argv)
unsigned socket_activation;
const char *pid_file_name = NULL;
+#if HAVE_NBD_DEVICE
/* The client thread uses SIGTERM to interrupt the server. A signal
* handler ensures that "qemu-nbd -v -c" exits with a nice status code.
*/
@@ -594,6 +596,7 @@ int main(int argc, char **argv)
memset(&sa_sigterm, 0, sizeof(sa_sigterm));
sa_sigterm.sa_handler = termsig_handler;
sigaction(SIGTERM, &sa_sigterm, NULL);
+#endif /* HAVE_NBD_DEVICE */
#ifdef CONFIG_POSIX
signal(SIGPIPE, SIG_IGN);