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-rw-r--r--src/network/socket/qnativesocketengine_unix.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/network/socket/qnativesocketengine_unix.cpp b/src/network/socket/qnativesocketengine_unix.cpp
index 6949eec9560..b78d2829704 100644
--- a/src/network/socket/qnativesocketengine_unix.cpp
+++ b/src/network/socket/qnativesocketengine_unix.cpp
@@ -822,6 +822,12 @@ qint64 QNativeSocketEnginePrivate::nativePendingDatagramSize() const
recvResult = getsockopt(socketDescriptor, SOL_SOCKET, SO_NREAD, &value, &valuelen);
if (recvResult != -1)
recvResult = value;
+#elif defined(Q_OS_VXWORKS)
+ // VxWorks: use ioctl(FIONREAD) to query the number of bytes available
+ int available = 0;
+ int ioctlResult = ::ioctl(socketDescriptor, FIONREAD, &available);
+ if (ioctlResult != -1)
+ recvResult = available;
#else
// We need to grow the buffer to fit the entire datagram.
// We start at 1500 bytes (the MTU for Ethernet V2), which should catch