b467b86bbf
- pull in final/upstream fixes for QTBUG-51648,QTBUG-51649 - disable examples/tests in bootstrap mode
206 lines
8.5 KiB
Diff
206 lines
8.5 KiB
Diff
From 9be4ee52021bbb3227611979319ab5e3106063b2 Mon Sep 17 00:00:00 2001
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From: Weng Xuetian <wengxt@gmail.com>
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Date: Thu, 3 Mar 2016 21:56:53 -0800
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Subject: [PATCH 537/595] QtDBus: finish all pending call with error if
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disconnected
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libdbus will send a local signal if connection gets disconnected. When
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this happens, end all pending calls with QDBusError::Disconnected.
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Task-number: QTBUG-51649
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Change-Id: I5c7d2a468bb5da746d0c0e53e458c1e376f186a9
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Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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---
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src/dbus/dbus_minimal_p.h | 2 ++
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src/dbus/qdbusconnection_p.h | 3 ++
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src/dbus/qdbusintegrator.cpp | 41 ++++++++++++++++++----
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src/dbus/qdbusutil_p.h | 2 ++
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.../dbus/qdbusconnection/tst_qdbusconnection.cpp | 21 +++++++++++
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.../dbus/qdbusconnection/tst_qdbusconnection.h | 1 +
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6 files changed, 64 insertions(+), 6 deletions(-)
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diff --git a/src/dbus/dbus_minimal_p.h b/src/dbus/dbus_minimal_p.h
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index f0a2954..8f25b24 100644
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--- a/src/dbus/dbus_minimal_p.h
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+++ b/src/dbus/dbus_minimal_p.h
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@@ -99,9 +99,11 @@ typedef dbus_uint32_t dbus_bool_t;
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/* dbus-shared.h */
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#define DBUS_SERVICE_DBUS "org.freedesktop.DBus"
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#define DBUS_PATH_DBUS "/org/freedesktop/DBus"
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+#define DBUS_PATH_LOCAL "/org/freedesktop/DBus/Local"
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#define DBUS_INTERFACE_DBUS "org.freedesktop.DBus"
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#define DBUS_INTERFACE_INTROSPECTABLE "org.freedesktop.DBus.Introspectable"
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#define DBUS_INTERFACE_PROPERTIES "org.freedesktop.DBus.Properties"
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+#define DBUS_INTERFACE_LOCAL "org.freedesktop.DBus.Local"
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#define DBUS_NAME_FLAG_ALLOW_REPLACEMENT 0x1 /**< Allow another service to become the primary owner if requested */
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#define DBUS_NAME_FLAG_REPLACE_EXISTING 0x2 /**< Request to replace the current primary owner */
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diff --git a/src/dbus/qdbusconnection_p.h b/src/dbus/qdbusconnection_p.h
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index 565eb83..b733a68 100644
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--- a/src/dbus/qdbusconnection_p.h
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+++ b/src/dbus/qdbusconnection_p.h
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@@ -260,6 +260,8 @@ private:
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QString getNameOwnerNoCache(const QString &service);
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+ void watchForDBusDisconnection();
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+
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void _q_newConnection(QDBusConnectionPrivate *newConnection);
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protected:
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@@ -279,6 +281,7 @@ private slots:
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void serviceOwnerChangedNoLock(const QString &name, const QString &oldOwner, const QString &newOwner);
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void registerServiceNoLock(const QString &serviceName);
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void unregisterServiceNoLock(const QString &serviceName);
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+ void handleDBusDisconnection();
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signals:
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void dispatchStatusChanged();
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diff --git a/src/dbus/qdbusintegrator.cpp b/src/dbus/qdbusintegrator.cpp
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index 3be775d..d0468f4 100644
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--- a/src/dbus/qdbusintegrator.cpp
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+++ b/src/dbus/qdbusintegrator.cpp
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@@ -1121,6 +1121,12 @@ void QDBusConnectionPrivate::closeConnection()
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rootNode.children.clear(); // free resources
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}
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+void QDBusConnectionPrivate::handleDBusDisconnection()
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+{
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+ while (!pendingCalls.isEmpty())
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+ processFinishedCall(pendingCalls.first());
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+}
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+
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void QDBusConnectionPrivate::checkThread()
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{
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Q_ASSERT(thread() == QDBusConnectionManager::instance());
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@@ -1646,6 +1652,19 @@ void QDBusConnectionPrivate::handleSignal(const QDBusMessage& msg)
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handleSignal(key, msg); // third try
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}
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+void QDBusConnectionPrivate::watchForDBusDisconnection()
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+{
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+ SignalHook hook;
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+ // Initialize the hook for Disconnected signal
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+ hook.service.clear(); // org.freedesktop.DBus.Local.Disconnected uses empty service name
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+ hook.path = QDBusUtil::dbusPathLocal();
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+ hook.obj = this;
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+ hook.params << QMetaType::Void;
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+ hook.midx = staticMetaObject.indexOfSlot("handleDBusDisconnection()");
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+ Q_ASSERT(hook.midx != -1);
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+ signalHooks.insert(QLatin1String("Disconnected:" DBUS_INTERFACE_LOCAL), hook);
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+}
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+
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void QDBusConnectionPrivate::setServer(QDBusServer *object, DBusServer *s, const QDBusErrorInternal &error)
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{
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mode = ServerMode;
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@@ -1711,6 +1730,8 @@ void QDBusConnectionPrivate::setPeer(DBusConnection *c, const QDBusErrorInternal
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qDBusSignalFilter,
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this, 0);
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+ watchForDBusDisconnection();
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+
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QMetaObject::invokeMethod(this, "doDispatch", Qt::QueuedConnection);
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}
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@@ -1787,6 +1808,8 @@ void QDBusConnectionPrivate::setConnection(DBusConnection *dbc, const QDBusError
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Q_ASSERT(hook.midx != -1);
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signalHooks.insert(QLatin1String("NameOwnerChanged:" DBUS_INTERFACE_DBUS), hook);
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+ watchForDBusDisconnection();
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+
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qDBusDebug() << this << ": connected successfully";
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// schedule a dispatch:
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@@ -1813,10 +1836,16 @@ void QDBusConnectionPrivate::processFinishedCall(QDBusPendingCallPrivate *call)
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QDBusMessage &msg = call->replyMessage;
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if (call->pending) {
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- // decode the message
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- DBusMessage *reply = q_dbus_pending_call_steal_reply(call->pending);
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- msg = QDBusMessagePrivate::fromDBusMessage(reply, connection->capabilities);
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- q_dbus_message_unref(reply);
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+ // when processFinishedCall is called and pending call is not completed,
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+ // it means we received disconnected signal from libdbus
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+ if (q_dbus_pending_call_get_completed(call->pending)) {
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+ // decode the message
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+ DBusMessage *reply = q_dbus_pending_call_steal_reply(call->pending);
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+ msg = QDBusMessagePrivate::fromDBusMessage(reply, connection->capabilities);
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+ q_dbus_message_unref(reply);
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+ } else {
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+ msg = QDBusMessage::createError(QDBusError::Disconnected, QDBusUtil::disconnectedErrorMessage());
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+ }
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}
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qDBusDebug() << connection << "got message reply:" << msg;
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@@ -2116,8 +2145,8 @@ void QDBusConnectionPrivate::sendInternal(QDBusPendingCallPrivate *pcall, void *
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pcall->pending = pending;
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q_dbus_pending_call_set_notify(pending, qDBusResultReceived, pcall, 0);
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- // DBus won't notify us when a peer disconnects so we need to track these ourselves
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- if (mode == QDBusConnectionPrivate::PeerMode)
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+ // DBus won't notify us when a peer disconnects or server terminates so we need to track these ourselves
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+ if (mode == QDBusConnectionPrivate::PeerMode || mode == QDBusConnectionPrivate::ClientMode)
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pendingCalls.append(pcall);
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return;
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diff --git a/src/dbus/qdbusutil_p.h b/src/dbus/qdbusutil_p.h
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index 8f5ae92..f4ab9b9 100644
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--- a/src/dbus/qdbusutil_p.h
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+++ b/src/dbus/qdbusutil_p.h
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@@ -155,6 +155,8 @@ namespace QDBusUtil
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{ return QStringLiteral(DBUS_SERVICE_DBUS); }
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inline QString dbusPath()
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{ return QStringLiteral(DBUS_PATH_DBUS); }
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+ inline QString dbusPathLocal()
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+ { return QStringLiteral(DBUS_PATH_LOCAL); }
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inline QString dbusInterface()
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{
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// it's the same string, but just be sure
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diff --git a/tests/auto/dbus/qdbusconnection/tst_qdbusconnection.cpp b/tests/auto/dbus/qdbusconnection/tst_qdbusconnection.cpp
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index e91f87d..f378091 100644
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--- a/tests/auto/dbus/qdbusconnection/tst_qdbusconnection.cpp
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+++ b/tests/auto/dbus/qdbusconnection/tst_qdbusconnection.cpp
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@@ -1218,6 +1218,27 @@ void tst_QDBusConnection::callVirtualObjectLocal()
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QCOMPARE(obj.replyArguments, subPathReply.arguments());
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}
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+void tst_QDBusConnection::pendingCallWhenDisconnected()
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+{
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+ if (!QCoreApplication::instance())
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+ QSKIP("Test requires a QCoreApplication");
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+
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+ QDBusServer *server = new QDBusServer;
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+ QDBusConnection con = QDBusConnection::connectToPeer(server->address(), "disconnect");
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+ QTestEventLoop::instance().enterLoop(2);
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+ QVERIFY(con.isConnected());
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+ QDBusMessage message = QDBusMessage::createMethodCall("", "/", QString(), "method");
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+ QDBusPendingCall reply = con.asyncCall(message);
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+
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+ delete server;
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+
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+ QTestEventLoop::instance().enterLoop(2);
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+ QVERIFY(!con.isConnected());
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+ QVERIFY(reply.isFinished());
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+ QVERIFY(reply.isError());
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+ QVERIFY(reply.error().type() == QDBusError::Disconnected);
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+}
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+
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QString MyObject::path;
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QString MyObjectWithoutInterface::path;
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QString MyObjectWithoutInterface::interface;
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diff --git a/tests/auto/dbus/qdbusconnection/tst_qdbusconnection.h b/tests/auto/dbus/qdbusconnection/tst_qdbusconnection.h
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index a53ba32..720e484 100644
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--- a/tests/auto/dbus/qdbusconnection/tst_qdbusconnection.h
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+++ b/tests/auto/dbus/qdbusconnection/tst_qdbusconnection.h
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@@ -121,6 +121,7 @@ private slots:
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void registerVirtualObject();
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void callVirtualObject();
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void callVirtualObjectLocal();
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+ void pendingCallWhenDisconnected();
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public:
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QString serviceName() const { return "org.qtproject.Qt.Autotests.QDBusConnection"; }
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--
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2.7.4
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