QLocalSocket/Win: allow delayed close to work

This mechanism was neither properly designed nor correctly tested
initially on Windows.

[ChangeLog][QtNetwork][Important Behavior Changes] QLocalSocket on
Windows now implements delayed closing, which is consistent with
the behavior on Unix.

Change-Id: Ic3bc427e68eea7f18201f6129df19fbc87d68101
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>

2 files changed, 9 insertions, 16 deletions

diff --git a/src/network/socket/qlocalsocket.cpp b/src/network/socket/qlocalsocket.cpp
index fba7f75663..a42b70546c 100644
--- a/src/network/socket/qlocalsocket.cpp
+++ b/src/network/socket/qlocalsocket.cpp
@@ -208,7 +208,14 @@ QT_BEGIN_NAMESPACE
 
 /*!
     \fn void QLocalSocket::close()
-    \reimp
+
+    Closes the I/O device for the socket and calls disconnectFromServer()
+    to close the socket's connection.
+
+    See QIODevice::close() for a description of the actions that occur when an I/O
+    device is closed.
+
+    \sa abort()
 */
 
 /*!
diff --git a/src/network/socket/qlocalsocket_win.cpp b/src/network/socket/qlocalsocket_win.cpp
index 5d0fdfb023..229efe0226 100644
--- a/src/network/socket/qlocalsocket_win.cpp
+++ b/src/network/socket/qlocalsocket_win.cpp
@@ -377,21 +377,11 @@ bool QLocalSocket::canReadLine() const
 void QLocalSocket::close()
 {
     Q_D(QLocalSocket);
-    if (openMode() == NotOpen)
-        return;
 
     QIODevice::close();
     d->serverName = QString();
     d->fullServerName = QString();
-
-    if (state() != UnconnectedState) {
-        if (bytesToWrite() > 0) {
-            disconnectFromServer();
-            return;
-        }
-
-        d->_q_pipeClosed();
-    }
+    disconnectFromServer();
 }
 
 bool QLocalSocket::flush()
@@ -481,10 +471,6 @@ bool QLocalSocket::waitForDisconnected(int msecs)
         qWarning("QLocalSocket::waitForDisconnected() is not allowed in UnconnectedState");
         return false;
     }
-    if (!openMode().testFlag(QIODevice::ReadOnly)) {
-        qWarning("QLocalSocket::waitForDisconnected isn't supported for write only pipes.");
-        return false;
-    }
 
     QDeadlineTimer deadline(msecs);
     while (!d->pipeReader->isPipeClosed()) {