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/**********
This library is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2.1 of the License, or (at your
option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
This library is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
**********/
// "mTunnel" multicast access service
// Copyright (c) 1996-2012 Live Networks, Inc. All rights reserved.
// Network Interfaces
// Implementation
#include "NetInterface.hh"
#include "GroupsockHelper.hh"
#ifndef NO_SSTREAM
#include <sstream>
#endif
#include <stdio.h>
////////// NetInterface //////////
UsageEnvironment* NetInterface::DefaultUsageEnvironment = NULL;
NetInterface::NetInterface() {
}
NetInterface::~NetInterface() {
}
////////// NetInterface //////////
DirectedNetInterface::DirectedNetInterface() {
}
DirectedNetInterface::~DirectedNetInterface() {
}
////////// DirectedNetInterfaceSet //////////
DirectedNetInterfaceSet::DirectedNetInterfaceSet()
: fTable(HashTable::create(ONE_WORD_HASH_KEYS)) {
}
DirectedNetInterfaceSet::~DirectedNetInterfaceSet() {
delete fTable;
}
DirectedNetInterface*
DirectedNetInterfaceSet::Add(DirectedNetInterface const* interf) {
return (DirectedNetInterface*) fTable->Add((char*)interf, (void*)interf);
}
Boolean
DirectedNetInterfaceSet::Remove(DirectedNetInterface const* interf) {
return fTable->Remove((char*)interf);
}
DirectedNetInterfaceSet::Iterator::
Iterator(DirectedNetInterfaceSet& interfaces)
: fIter(HashTable::Iterator::create(*(interfaces.fTable))) {
}
DirectedNetInterfaceSet::Iterator::~Iterator() {
delete fIter;
}
DirectedNetInterface* DirectedNetInterfaceSet::Iterator::next() {
char const* key; // dummy
return (DirectedNetInterface*) fIter->next(key);
};
////////// Socket //////////
int Socket::DebugLevel = 1; // default value
Socket::Socket(UsageEnvironment& env, Port port)
: fEnv(DefaultUsageEnvironment != NULL ? *DefaultUsageEnvironment : env), fPort(port) {
fSocketNum = setupDatagramSocket(fEnv, port);
}
Socket::~Socket() {
closeSocket(fSocketNum);
}
Boolean Socket::changePort(Port newPort) {
int oldSocketNum = fSocketNum;
closeSocket(fSocketNum);
fSocketNum = setupDatagramSocket(fEnv, newPort);
if (fSocketNum < 0) {
fEnv.taskScheduler().turnOffBackgroundReadHandling(oldSocketNum);
return False;
}
if (fSocketNum != oldSocketNum) { // the socket number has changed, so move any event handling for it:
fEnv.taskScheduler().moveSocketHandling(oldSocketNum, fSocketNum);
}
return True;
}
UsageEnvironment& operator<<(UsageEnvironment& s, const Socket& sock) {
return s << timestampString() << " Socket(" << sock.socketNum() << ")";
}
////////// SocketLookupTable //////////
SocketLookupTable::SocketLookupTable()
: fTable(HashTable::create(ONE_WORD_HASH_KEYS)) {
}
SocketLookupTable::~SocketLookupTable() {
delete fTable;
}
Socket* SocketLookupTable::Fetch(UsageEnvironment& env, Port port,
Boolean& isNew) {
isNew = False;
Socket* sock;
do {
sock = (Socket*) fTable->Lookup((char*)(long)(port.num()));
if (sock == NULL) { // we need to create one:
sock = CreateNew(env, port);
if (sock == NULL || sock->socketNum() < 0) break;
fTable->Add((char*)(long)(port.num()), (void*)sock);
isNew = True;
}
return sock;
} while (0);
delete sock;
return NULL;
}
Boolean SocketLookupTable::Remove(Socket const* sock) {
return fTable->Remove( (char*)(long)(sock->port().num()) );
}
////////// NetInterfaceTrafficStats //////////
NetInterfaceTrafficStats::NetInterfaceTrafficStats() {
fTotNumPackets = fTotNumBytes = 0.0;
}
void NetInterfaceTrafficStats::countPacket(unsigned packetSize) {
fTotNumPackets += 1.0;
fTotNumBytes += packetSize;
}
Boolean NetInterfaceTrafficStats::haveSeenTraffic() const {
return fTotNumPackets != 0.0;
}
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