Add a 'blocking' boolean field to QIOChannelSocket to track whether the
underlying socket is in blocking or non-blocking mode.

Signed-off-by: Tejus GK <tejus.gk@nutanix.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
---
 include/io/channel-socket.h | 1 +
 io/channel-socket.c         | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/include/io/channel-socket.h b/include/io/channel-socket.h
index a88cf8b3a9..26319fa98b 100644
--- a/include/io/channel-socket.h
+++ b/include/io/channel-socket.h
@@ -49,6 +49,7 @@ struct QIOChannelSocket {
     socklen_t remoteAddrLen;
     ssize_t zero_copy_queued;
     ssize_t zero_copy_sent;
+    bool blocking;
 };
 
 
diff --git a/io/channel-socket.c b/io/channel-socket.c
index 712b793eaf..8b30d5b7f7 100644
--- a/io/channel-socket.c
+++ b/io/channel-socket.c
@@ -65,6 +65,7 @@ qio_channel_socket_new(void)
     sioc->fd = -1;
     sioc->zero_copy_queued = 0;
     sioc->zero_copy_sent = 0;
+    sioc->blocking = false;
 
     ioc = QIO_CHANNEL(sioc);
     qio_channel_set_feature(ioc, QIO_CHANNEL_FEATURE_SHUTDOWN);
@@ -859,6 +860,7 @@ qio_channel_socket_set_blocking(QIOChannel *ioc,
                                 Error **errp)
 {
     QIOChannelSocket *sioc = QIO_CHANNEL_SOCKET(ioc);
+    sioc->blocking = enabled;
 
     if (!qemu_set_blocking(sioc->fd, enabled, errp)) {
         return -1;
-- 
2.43.7