From: Daniel P. BerrangĂ© <[email protected]>

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. BerrangĂ© <[email protected]>
Message-Id: <[email protected]>
Reviewed-by: Eric Blake <[email protected]>
Signed-off-by: Eric Blake <[email protected]>
---
 qemu-nbd.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/qemu-nbd.c b/qemu-nbd.c
index b102874f0f46..dc6ef089afd5 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);
-- 
2.28.0


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