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QNativeSocketEngine: Simplify nativeHasPendingDatagrams()

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We don't need the sockaddr structure.

Change-Id: I6e9274c1e7444ad48c81fffd14da826387d72f83
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
This commit is contained in:
Thiago Macieira 2017-08-13 13:39:49 -07:00
parent a9ff368ac7
commit 306a6b9dec
1 changed files with 3 additions and 11 deletions
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14
src/network/socket/qnativesocketengine_unix.cpp
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@ -829,18 +829,10 @@ qint64 QNativeSocketEnginePrivate::nativeBytesAvailable() const
bool QNativeSocketEnginePrivate::nativeHasPendingDatagrams() const
{
// Create a sockaddr struct and reset its port number.
qt_sockaddr storage;
QT_SOCKLEN_T storageSize = sizeof(storage);
memset(&storage, 0, storageSize);
// Peek 1 bytes into the next message. The size of the message may
// well be 0, so we can't check recvfrom's return value.
// Peek 1 bytes into the next message.
ssize_t readBytes;
do {
char c;
readBytes = ::recvfrom(socketDescriptor, &c, 1, MSG_PEEK, &storage.a, &storageSize);
} while (readBytes == -1 && errno == EINTR);
char c;
EINTR_LOOP(readBytes, ::recv(socketDescriptor, &c, 1, MSG_PEEK));
// If there's no error, or if our buffer was too small, there must be a
// pending datagram.