175 lines
4.5 KiB
C++
Executable File
175 lines
4.5 KiB
C++
Executable File
/**********
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This library is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
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This library is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this library; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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**********/
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// "mTunnel" multicast access service
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// Copyright (c) 1996-2016 Live Networks, Inc. All rights reserved.
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// Network Interfaces
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// Implementation
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#include "NetInterface.hh"
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#include "GroupsockHelper.hh"
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#ifndef NO_SSTREAM
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#include <sstream>
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#endif
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#include <stdio.h>
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////////// NetInterface //////////
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UsageEnvironment* NetInterface::DefaultUsageEnvironment = NULL;
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NetInterface::NetInterface() {
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}
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NetInterface::~NetInterface() {
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}
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////////// NetInterface //////////
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DirectedNetInterface::DirectedNetInterface() {
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}
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DirectedNetInterface::~DirectedNetInterface() {
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}
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////////// DirectedNetInterfaceSet //////////
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DirectedNetInterfaceSet::DirectedNetInterfaceSet()
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: fTable(HashTable::create(ONE_WORD_HASH_KEYS)) {
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}
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DirectedNetInterfaceSet::~DirectedNetInterfaceSet() {
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delete fTable;
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}
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DirectedNetInterface*
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DirectedNetInterfaceSet::Add(DirectedNetInterface const* interf) {
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return (DirectedNetInterface*) fTable->Add((char*)interf, (void*)interf);
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}
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Boolean
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DirectedNetInterfaceSet::Remove(DirectedNetInterface const* interf) {
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return fTable->Remove((char*)interf);
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}
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DirectedNetInterfaceSet::Iterator::
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Iterator(DirectedNetInterfaceSet& interfaces)
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: fIter(HashTable::Iterator::create(*(interfaces.fTable))) {
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}
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DirectedNetInterfaceSet::Iterator::~Iterator() {
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delete fIter;
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}
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DirectedNetInterface* DirectedNetInterfaceSet::Iterator::next() {
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char const* key; // dummy
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return (DirectedNetInterface*) fIter->next(key);
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};
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////////// Socket //////////
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int Socket::DebugLevel = 1; // default value
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Socket::Socket(UsageEnvironment& env, Port port)
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: fEnv(DefaultUsageEnvironment != NULL ? *DefaultUsageEnvironment : env), fPort(port) {
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fSocketNum = setupDatagramSocket(fEnv, port);
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}
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void Socket::reset() {
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closeSocket(fSocketNum);
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fSocketNum = -1;
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}
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Socket::~Socket() {
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reset();
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}
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Boolean Socket::changePort(Port newPort) {
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int oldSocketNum = fSocketNum;
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unsigned oldReceiveBufferSize = getReceiveBufferSize(fEnv, fSocketNum);
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unsigned oldSendBufferSize = getSendBufferSize(fEnv, fSocketNum);
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closeSocket(fSocketNum);
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fSocketNum = setupDatagramSocket(fEnv, newPort);
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if (fSocketNum < 0) {
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fEnv.taskScheduler().turnOffBackgroundReadHandling(oldSocketNum);
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return False;
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}
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setReceiveBufferTo(fEnv, fSocketNum, oldReceiveBufferSize);
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setSendBufferTo(fEnv, fSocketNum, oldSendBufferSize);
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if (fSocketNum != oldSocketNum) { // the socket number has changed, so move any event handling for it:
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fEnv.taskScheduler().moveSocketHandling(oldSocketNum, fSocketNum);
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}
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return True;
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}
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UsageEnvironment& operator<<(UsageEnvironment& s, const Socket& sock) {
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return s << timestampString() << " Socket(" << sock.socketNum() << ")";
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}
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////////// SocketLookupTable //////////
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SocketLookupTable::SocketLookupTable()
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: fTable(HashTable::create(ONE_WORD_HASH_KEYS)) {
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}
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SocketLookupTable::~SocketLookupTable() {
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delete fTable;
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}
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Socket* SocketLookupTable::Fetch(UsageEnvironment& env, Port port,
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Boolean& isNew) {
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isNew = False;
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Socket* sock;
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do {
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sock = (Socket*) fTable->Lookup((char*)(long)(port.num()));
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if (sock == NULL) { // we need to create one:
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sock = CreateNew(env, port);
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if (sock == NULL || sock->socketNum() < 0) break;
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fTable->Add((char*)(long)(port.num()), (void*)sock);
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isNew = True;
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}
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return sock;
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} while (0);
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delete sock;
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return NULL;
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}
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Boolean SocketLookupTable::Remove(Socket const* sock) {
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return fTable->Remove( (char*)(long)(sock->port().num()) );
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}
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////////// NetInterfaceTrafficStats //////////
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NetInterfaceTrafficStats::NetInterfaceTrafficStats() {
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fTotNumPackets = fTotNumBytes = 0.0;
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}
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void NetInterfaceTrafficStats::countPacket(unsigned packetSize) {
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fTotNumPackets += 1.0;
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fTotNumBytes += packetSize;
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}
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Boolean NetInterfaceTrafficStats::haveSeenTraffic() const {
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return fTotNumPackets != 0.0;
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}
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