1berry/qtbase
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

QHttpNetworkConnection: optimize startNextRequest

Browse Source 
Use QVLA instead of QQueue to avoid allocations
and use QSpan to emulate queue behavior to avoid N^2

Change-Id: I333bc1af98a596fc041765996867a3d6449fcfde
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
This commit is contained in:
Anton Kudryavtsev 2024-03-19 18:20:40 +03:00
parent d5d2688acb
commit f1b74f7b58
1 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/network/access/qhttpnetworkconnection.cpp
View File

@ -17,6 +17,8 @@
#include <qbuffer.h>
#include <qpair.h>
#include <qdebug.h>
#include <qspan.h>
#include <qvarlengtharray.h>
#ifndef QT_NO_SSL
# include <private/qsslsocket_p.h>
@ -1134,7 +1136,7 @@ void QHttpNetworkConnectionPrivate::_q_startNextRequest()
if (neededOpenChannels <= 0)
return;
QQueue<int> channelsToConnect;
QVarLengthArray<int> channelsToConnect;
// use previously used channels first
for (int i = 0; i < activeChannelCount && neededOpenChannels > 0; ++i) {
@ -1150,7 +1152,7 @@ void QHttpNetworkConnectionPrivate::_q_startNextRequest()
if (!channels[i].reply && !channels[i].isSocketBusy()
&& (channels[i].socket->state() == QAbstractSocket::UnconnectedState)) {
channelsToConnect.enqueue(i);
channelsToConnect.push_back(i);
neededOpenChannels--;
}
}
@ -1160,12 +1162,14 @@ void QHttpNetworkConnectionPrivate::_q_startNextRequest()
if (channels[i].socket)
continue;
channelsToConnect.enqueue(i);
channelsToConnect.push_back(i);
neededOpenChannels--;
}
while (!channelsToConnect.isEmpty()) {
const int channel = channelsToConnect.dequeue();
auto channelToConnectSpan = QSpan{channelsToConnect};
while (!channelToConnectSpan.isEmpty()) {
const int channel = channelToConnectSpan.front();
channelToConnectSpan = channelToConnectSpan.sliced(1);
if (networkLayerState == IPv4)
channels[channel].networkLayerPreference = QAbstractSocket::IPv4Protocol;