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Optimize QHostAddress::operator== for SpecialAddress

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There's no need to allocate memory for the special address.

Change-Id: I5f3760565807731ab595e91fc934c21d10df212a
Reviewed-by: Richard J. Moore <rich@kde.org>
This commit is contained in:
Thiago Macieira 2014-12-24 12:28:38 -02:00
parent 8761b2b5d9
commit 05d39ec9c0
1 changed files with 26 additions and 10 deletions
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34
src/network/kernel/qhostaddress.cpp
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@ -778,18 +778,34 @@ bool QHostAddress::operator==(const QHostAddress &other) const
bool QHostAddress::operator ==(SpecialAddress other) const
{
QT_ENSURE_PARSED(this);
QHostAddress otherAddress(other);
QT_ENSURE_PARSED(&otherAddress);
switch (other) {
case Null:
return d->protocol == QAbstractSocket::UnknownNetworkLayerProtocol;
if (d->protocol == QAbstractSocket::IPv4Protocol)
return otherAddress.d->protocol == QAbstractSocket::IPv4Protocol && d->a == otherAddress.d->a;
case Broadcast:
return d->protocol == QAbstractSocket::IPv4Protocol && d->a == INADDR_BROADCAST;
case LocalHost:
return d->protocol == QAbstractSocket::IPv4Protocol && d->a == INADDR_LOOPBACK;
case Any:
return d->protocol == QAbstractSocket::AnyIPProtocol;
case AnyIPv4:
return d->protocol == QAbstractSocket::IPv4Protocol && d->a == INADDR_ANY;
case LocalHostIPv6:
case AnyIPv6:
if (d->protocol == QAbstractSocket::IPv6Protocol) {
return otherAddress.d->protocol == QAbstractSocket::IPv6Protocol
&& memcmp(&d->a6, &otherAddress.d->a6, sizeof(Q_IPV6ADDR)) == 0;
Q_IPV6ADDR ip6 = { { 0 } };
ip6[15] = quint8(other == LocalHostIPv6); // 1 for localhost, 0 for any
return memcmp(&d->a6, &ip6, sizeof ip6) == 0;
}
if (d->protocol == QAbstractSocket::AnyIPProtocol)
return other == QHostAddress::Any;
return int(other) == int(Null);
return false;
}
Q_UNREACHABLE();
return false;
}
/*!