diff options
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbclipboard.cpp')
| -rw-r--r-- | src/plugins/platforms/xcb/qxcbclipboard.cpp | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/plugins/platforms/xcb/qxcbclipboard.cpp b/src/plugins/platforms/xcb/qxcbclipboard.cpp index ac8b029916..a4940f1c49 100644 --- a/src/plugins/platforms/xcb/qxcbclipboard.cpp +++ b/src/plugins/platforms/xcb/qxcbclipboard.cpp @@ -787,6 +787,12 @@ xcb_generic_event_t *QXcbClipboard::waitForClipboardEvent(xcb_window_t window, i if (e) // found the waited for event return e; + // It is safe to assume here that the pointed to node won't be re-used + // while we are holding the pointer to it. The nodes can be recycled + // only when they are dequeued, which is done only by + // QXcbConnection::processXcbEvents(). + const QXcbEventNode *flushedTailNode = queue->flushedTail(); + if (checkManager) { auto reply = Q_XCB_REPLY(xcb_get_selection_owner, xcb_connection(), atom(QXcbAtom::CLIPBOARD_MANAGER)); if (!reply || reply->owner == XCB_NONE) @@ -812,7 +818,7 @@ xcb_generic_event_t *QXcbClipboard::waitForClipboardEvent(xcb_window_t window, i const auto elapsed = timer.elapsed(); if (elapsed < clipboard_timeout) - queue->waitForNewEvents(clipboard_timeout - elapsed); + queue->waitForNewEvents(flushedTailNode, clipboard_timeout - elapsed); } while (timer.elapsed() < clipboard_timeout); return nullptr; @@ -835,6 +841,8 @@ QByteArray QXcbClipboard::clipboardReadIncrementalProperty(xcb_window_t win, xcb alloc_error = buf.size() != nbytes+1; } + QElapsedTimer timer; + timer.start(); for (;;) { connection()->flush(); xcb_generic_event_t *ge = waitForClipboardEvent(win, XCB_PROPERTY_NOTIFY); @@ -870,9 +878,11 @@ QByteArray QXcbClipboard::clipboardReadIncrementalProperty(xcb_window_t win, xcb tmp_buf.resize(0); offset += length; } - } else { - break; } + + const auto elapsed = timer.elapsed(); + if (elapsed > clipboard_timeout) + break; } // timed out ... create a new requestor window, otherwise the requestor |