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Implement http persistence connection

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Max simultaneous connection limit set to 500
This also release allocated memory of Connection instances at runtime instead of at program shutdown.
This commit is contained in:
Chocobo1 2017-04-11 12:07:17 +08:00
parent ae0a9d74c4
commit 0b28fb6c6b
4 changed files with 73 additions and 23 deletions
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52
src/base/http/server.cpp
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@ -30,8 +30,10 @@
#include "server.h"
#include <QMutableListIterator>
#include <QNetworkProxy>
#include <QStringList>
#include <QTimer>
#ifndef QT_NO_OPENSSL
#include <QSslSocket>
@ -41,6 +43,10 @@
#include "connection.h"
static const int KEEP_ALIVE_DURATION = 7; // seconds
static const int CONNECTIONS_LIMIT = 500;
static const int CONNECTIONS_SCAN_INTERVAL = 2; // seconds
using namespace Http;
Server::Server(IRequestHandler *requestHandler, QObject *parent)
@ -54,6 +60,10 @@ Server::Server(IRequestHandler *requestHandler, QObject *parent)
#ifndef QT_NO_OPENSSL
QSslSocket::setDefaultCiphers(safeCipherList());
#endif
QTimer *dropConnectionTimer = new QTimer(this);
connect(dropConnectionTimer, &QTimer::timeout, this, &Server::dropTimedOutConnection);
dropConnectionTimer->start(CONNECTIONS_SCAN_INTERVAL * 1000);
}
Server::~Server()
@ -62,6 +72,8 @@ Server::~Server()
void Server::incomingConnection(qintptr socketDescriptor)
{
if (m_connections.size() >= CONNECTIONS_LIMIT) return;
QTcpSocket *serverSocket;
#ifndef QT_NO_OPENSSL
if (m_https)
@ -70,20 +82,34 @@ void Server::incomingConnection(qintptr socketDescriptor)
#endif
serverSocket = new QTcpSocket(this);
if (serverSocket->setSocketDescriptor(socketDescriptor)) {
#ifndef QT_NO_OPENSSL
if (m_https) {
static_cast<QSslSocket *>(serverSocket)->setProtocol(QSsl::SecureProtocols);
static_cast<QSslSocket *>(serverSocket)->setPrivateKey(m_key);
static_cast<QSslSocket *>(serverSocket)->setLocalCertificateChain(m_certificates);
static_cast<QSslSocket *>(serverSocket)->setPeerVerifyMode(QSslSocket::VerifyNone);
static_cast<QSslSocket *>(serverSocket)->startServerEncryption();
}
#endif
new Connection(serverSocket, m_requestHandler, this);
if (!serverSocket->setSocketDescriptor(socketDescriptor)) {
delete serverSocket;
return;
}
else {
serverSocket->deleteLater();
#ifndef QT_NO_OPENSSL
if (m_https) {
static_cast<QSslSocket *>(serverSocket)->setProtocol(QSsl::SecureProtocols);
static_cast<QSslSocket *>(serverSocket)->setPrivateKey(m_key);
static_cast<QSslSocket *>(serverSocket)->setLocalCertificateChain(m_certificates);
static_cast<QSslSocket *>(serverSocket)->setPeerVerifyMode(QSslSocket::VerifyNone);
static_cast<QSslSocket *>(serverSocket)->startServerEncryption();
}
#endif
Connection *c = new Connection(serverSocket, m_requestHandler, this);
m_connections.append(c);
}
void Server::dropTimedOutConnection()
{
QMutableListIterator<Connection *> i(m_connections);
while (i.hasNext()) {
auto connection = i.next();
if (connection->isClosed() || connection->hasExpired(KEEP_ALIVE_DURATION)) {
delete connection;
i.remove();
}
}
}