diff options
Diffstat (limited to 'src/network/socket/qnativesocketengine_win.cpp')
| -rw-r--r-- | src/network/socket/qnativesocketengine_win.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/network/socket/qnativesocketengine_win.cpp b/src/network/socket/qnativesocketengine_win.cpp index e21bf29d4b..7556bb98f4 100644 --- a/src/network/socket/qnativesocketengine_win.cpp +++ b/src/network/socket/qnativesocketengine_win.cpp @@ -1146,10 +1146,10 @@ qint64 QNativeSocketEnginePrivate::nativePendingDatagramSize() const DWORD bufferCount = 5; WSABUF * buf = 0; for (;;) { - // the data written to udpMessagePeekBuffer is discarded, so - // this function is still reentrant although it might not look - // so. - static char udpMessagePeekBuffer[8192]; + // We start at 1500 bytes (the MTU for Ethernet V2), which should catch + // almost all uses (effective MTU for UDP under IPv4 is 1468), except + // for localhost datagrams and those reassembled by the IP layer. + char udpMessagePeekBuffer[1500]; buf = new WSABUF[bufferCount]; for (DWORD i=0; i<bufferCount; i++) { |