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diff --git a/util/network/network.cpp b/util/network/network.cpp
index 0dc219cc..d7112d67 100644
--- a/util/network/network.cpp
+++ b/util/network/network.cpp
@@ -1,379 +1,394 @@
#ifdef HAVE_NETWORKING
#include "hawknl/nl.h"
#endif
#include "network.h"
#include "util/debug.h"
#include <string>
#include <sstream>
#include <string.h>
#include "util/system.h"
#include "util/compress.h"
#include "util/thread.h"
#ifdef HAVE_NETWORKING
#ifdef WII
#include <network.h>
#elif defined(WINDOWS)
#include <winsock.h>
#else
#include <arpa/inet.h>
#endif
#else
#ifndef htonl
#define htonl(x) x
#endif
#ifndef htons
#define htons(x) x
#endif
#ifndef ntohl
#define ntohl(x) x
#endif
#ifndef ntohs
#define ntohs(x) x
#endif
#endif
using namespace std;
/* TODO: Wrap open_sockets with a mutex */
namespace Network{
NetworkException::~NetworkException() throw (){
}
MessageEnd::MessageEnd(){
}
InvalidPortException::InvalidPortException( int port, const string message ):
NetworkException(""){
ostringstream num;
num << port;
num << ". ";
num << message;
this->setMessage( "Invalid port " + num.str() );
}
/*
template <typename M>
int messageSize(const M& message);
*/
/*
template <>
int messageSize<Message>(Message const & message){
return message.size();
}
template <>
int messageSize<Message*>(Message* const & message){
return message->size();
}
*/
/*
template <class M>
uint8_t * messageDump(const M& message, uint8_t * buffer);
template <>
uint8_t * messageDump<Message>(const Message & message, uint8_t * buffer){
return message.dump(buffer);
}
template <>
uint8_t * messageDump<Message*>(Message* const & message, uint8_t * buffer){
return message->dump(buffer);
}
*/
#ifdef HAVE_NETWORKING
static string getHawkError(){
return string(" HawkNL error: '") +
string(nlGetErrorStr(nlGetError())) +
string("' HawkNL system error: '") +
string(nlGetSystemErrorStr(nlGetSystemError()));
}
template<typename X>
static X readX(Socket socket){
X data;
readBytes(socket, (uint8_t*) &data, sizeof(X));
return data;
}
int8_t read8(Socket socket){
return readX<uint8_t>(socket);
}
int16_t read16(Socket socket){
return ntohs(readX<uint16_t>(socket));
}
int32_t read32(Socket socket){
return ntohl(readX<uint32_t>(socket));
}
void send16(Socket socket, int16_t bytes){
bytes = htons(bytes);
sendBytes(socket, (uint8_t *) &bytes, sizeof(bytes));
}
char * dump16(char * where, int16_t bytes){
bytes = htons(bytes);
*(uint16_t*) where = bytes;
return where + sizeof(uint16_t);
}
char * parse16(char * where, uint16_t * out){
*out = ntohs(*(uint16_t*) where);
return where + sizeof(uint16_t);
}
+char * dump32(char * where, uint32_t bytes){
+ bytes = htonl(bytes);
+ *(uint32_t*) where = bytes;
+ return where + sizeof(uint32_t);
+}
+
+char * parse32(char * where, uint32_t * out){
+ *out = ntohl(*(uint32_t*) where);
+ return where + sizeof(uint32_t);
+}
+
char * parseString(char * where, string * out, uint16_t length){
*out = string(where);
return where + length;
}
char * dumpStr(char * where, const std::string & str){
memcpy(where, str.c_str(), str.size() + 1);
return where + str.size() + 1;
}
string readStr(Socket socket, const uint16_t length){
char buffer[length + 1];
NLint bytes = nlRead(socket, buffer, length);
if (bytes == NL_INVALID){
throw NetworkException(string("Could not read string.") + getHawkError());
}
buffer[length] = 0;
bytes += 1;
return string(buffer);
}
void sendStr(Socket socket, const string & str){
if (nlWrite(socket, str.c_str(), str.length() + 1) != (signed)(str.length() + 1)){
throw NetworkException( string("Could not write string.") + getHawkError() );
}
}
void sendBytes(Socket socket, const uint8_t * data, int length){
const uint8_t * position = data;
int written = 0;
while ( written < length ){
int bytes = nlWrite(socket, position, length - written);
if (bytes == NL_INVALID){
throw NetworkException(string("Could not send bytes.") + getHawkError());
}
written += bytes;
position += bytes;
}
}
+int readUptoBytes(Socket socket, uint8_t * data, int length){
+ return nlRead(socket, data, length);
+}
+
void readBytes(Socket socket, uint8_t * data, int length){
uint8_t * position = data;
int read = 0;
while (read < length){
int bytes = nlRead(socket, position, length - read);
if (bytes == NL_INVALID){
switch (nlGetError()){
case NL_MESSAGE_END : throw MessageEnd();
default : throw NetworkException(string("Could not read bytes.") + getHawkError());
}
}
read += bytes;
position += bytes;
}
}
Util::Thread::Lock socketsLock;
Socket openReliable(int port){
// NLsocket server = nlOpen( port, NL_RELIABLE_PACKETS );
Global::debug(1, "network") << "Attemping to open reliable port " << port << endl;
Socket server = nlOpen(port, NL_RELIABLE);
/* server will either be NL_INVALID (-1) or some low integer. hawknl
* sockets are mapped internally to real sockets, so don't be surprised
* if you get a socket back like 0.
*/
if (server == NL_INVALID){
throw InvalidPortException(port, nlGetSystemErrorStr(nlGetSystemError()));
}
Global::debug(1, "network") << "Successfully opened a socket: " << server << endl;
Util::Thread::acquireLock(&socketsLock);
open_sockets.push_back(server);
Util::Thread::releaseLock(&socketsLock);
return server;
}
Socket openUnreliable(int port){
// NLsocket server = nlOpen( port, NL_RELIABLE_PACKETS );
Global::debug(1, "network") << "Attemping to open unreliable port " << port << endl;
Socket server = nlOpen(port, NL_UNRELIABLE);
/* server will either be NL_INVALID (-1) or some low integer. hawknl
* sockets are mapped internally to real sockets, so don't be surprised
* if you get a socket back like 0.
*/
if (server == NL_INVALID){
throw InvalidPortException(port, nlGetSystemErrorStr(nlGetSystemError()));
}
Global::debug(1, "network") << "Successfully opened a socket: " << server << endl;
Util::Thread::acquireLock(&socketsLock);
open_sockets.push_back(server);
Util::Thread::releaseLock(&socketsLock);
return server;
}
Socket connectReliable(string server, int port){
NLaddress address;
nlGetAddrFromName(server.c_str(), &address);
nlSetAddrPort(&address, port);
/* The port that this socket has opened will be immediately rebound to some
* other port by sock_connect, but we still need to call openReliable to get
* an NL_RELIABLE socket.
*/
Socket socket = openReliable(0);
if (nlConnect(socket, &address) == NL_FALSE){
close(socket);
throw NetworkException("Could not connect");
}
return socket;
}
Socket connectUnreliable(string server, int port){
NLaddress address;
nlGetAddrFromName(server.c_str(), &address);
nlSetAddrPort(&address, port);
/* The port that this socket has opened will be immediately rebound to some
* other port by sock_connect, but we still need to call openReliable to get
* an NL_RELIABLE socket.
*/
Socket socket = openUnreliable(0);
if (nlConnect(socket, &address) == NL_FALSE){
close(socket);
throw NetworkException("Could not connect");
}
return socket;
}
void close(Socket s){
Util::Thread::acquireLock(&socketsLock);
for (vector< Socket >::iterator it = open_sockets.begin(); it != open_sockets.end(); ){
if ( *it == s ){
Global::debug(1, "network") << "Closing socket " << s << endl;
nlClose(*it);
Global::debug(1, "network") << "Closed" << endl;
it = open_sockets.erase(it);
} else {
it++;
}
}
Util::Thread::releaseLock(&socketsLock);
}
void closeAll(){
Global::debug(1, "network") << "Closing all sockets" << std::endl;
Util::Thread::acquireLock(&socketsLock);
for (vector<Socket>::iterator it = open_sockets.begin(); it != open_sockets.end(); it++ ){
nlClose(*it);
}
open_sockets.clear();
Util::Thread::releaseLock(&socketsLock);
}
void init(){
nlInit();
nlSelectNetwork(NL_IP);
nlEnable(NL_BLOCKING_IO);
Util::Thread::initializeLock(&socketsLock);
// nlDisable( NL_BLOCKING_IO );
}
void reuseSockets(bool what){
if (what){
nlEnable(NL_REUSE_ADDRESS);
} else {
nlDisable(NL_REUSE_ADDRESS);
}
}
bool blocking(Socket s, bool b){
return nlSetSocketOpt(s, NL_BLOCKING_IO, b) == NL_TRUE;
}
void blocking(bool b){
if (b){
nlEnable(NL_BLOCKING_IO);
} else {
nlDisable(NL_BLOCKING_IO);
}
}
bool noDelay(Socket s, bool b){
return nlSetSocketOpt(s, NL_TCP_NO_DELAY, b) == NL_TRUE;
}
void listen( Socket s ) throw( NetworkException ){
if ( nlListen( s ) == NL_FALSE ){
throw CannotListenException( string(nlGetSystemErrorStr( nlGetSystemError() )) );
}
}
Socket accept( Socket s ) throw( NetworkException ){
Socket connection = nlAcceptConnection(s);
if ( connection == NL_INVALID ){
/*
if ( nlGetError() == NL_NO_PENDING ){
error = NO_CONNECTIONS_PENDING;
} else {
error = NETWORK_ERROR;
}
return s;
*/
if ( nlGetError() == NL_NO_PENDING ){
throw NoConnectionsPendingException();
}
throw NetworkException("Could not accept connection");
}
Util::Thread::acquireLock(&socketsLock);
open_sockets.push_back(connection);
Util::Thread::releaseLock(&socketsLock);
return connection;
}
void shutdown(){
nlShutdown();
}
#else
/* Dummy implementations */
char * dump16(char * where, int16_t length){
return where;
}
int8_t read8(Socket socket){
return 0;
}
int16_t read16(Socket socket){
return 0;
}
char * dumpStr(char * where, const std::string & str){
return where;
}
void readBytes(Socket socket, uint8_t * data, int length){
}
void sendBytes(Socket socket, const uint8_t * data, int length){
}
char * parseString(char * where, std::string * out, uint16_t length){
return where;
}
#endif
}
diff --git a/util/network/network.h b/util/network/network.h
index 2a6a0e8f..023ecc00 100644
--- a/util/network/network.h
+++ b/util/network/network.h
@@ -1,130 +1,136 @@
#ifndef _paintown_network_h
#define _paintown_network_h
#include <stdint.h>
#ifdef HAVE_NETWORKING
#include "hawknl/nl.h"
#endif
#include <string>
#include <vector>
#include <exception>
namespace Network{
#ifdef HAVE_NETWORKING
typedef NLsocket Socket;
#else
typedef int Socket;
#endif
const int NO_CONNECTIONS_PENDING = 1;
const int NETWORK_ERROR = 2;
const int DATA_SIZE = 16;
class NetworkException: public std::exception{
public:
NetworkException( const std::string message = "" ):std::exception(),message(message){}
inline const std::string getMessage() const {
return message;
}
~NetworkException() throw();
protected:
inline void setMessage( const std::string & m ){
this->message = m;
}
private:
std::string message;
};
class NoConnectionsPendingException: public NetworkException{
public:
NoConnectionsPendingException(const std::string message = ""):
NetworkException(message){
}
};
class MessageEnd: public NetworkException {
public:
MessageEnd();
};
class InvalidPortException: public NetworkException{
public:
InvalidPortException( int port, const std::string message = "" );
};
class CannotListenException: public NetworkException{
public:
CannotListenException( const std::string message = "" ):
NetworkException( message ){
}
};
/*
template <class M>
int totalSize(const std::vector<M> & messages);
template <class M>
void dump(const std::vector<M> & messages, uint8_t * buffer );
*/
int8_t read8(Socket socket);
int16_t read16(Socket socket);
int32_t read32(Socket socket);
char * dump16(char * where, int16_t length);
+char * dump32(char * where, uint32_t length);
void send16(Socket socket, int16_t length);
/* Reads a string by expecting the string to be terminated with a null byte */
std::string readStr(Socket socket, const uint16_t length);
/* This will send a string plus its null byte. If you just wanted to send the string
* without a null byte then use sendBytes(socket, str.c_str(), str.size())
*/
void sendStr(Socket socket, const std::string & str );
void sendBytes(Socket socket, const uint8_t * data, int length);
void readBytes(Socket socket, uint8_t * data, int length);
+/* reads as many bytes as possible in one go. useful for udp where partial packets
+ * are discarded.
+ */
+int readUptoBytes(Socket socket, uint8_t * data, int length);
/* Copies the string plus its null byte to the `where' buffer.
* Returns a pointer that is where + str.size() + 1
*/
char * dumpStr(char * where, const std::string & str);
char * parse16(char * where, uint16_t * out);
+char * parse32(char * where, uint32_t * out);
/* Reads a string into 'out' from 'where' that is expected to be 'length' bytes.
* Right now the function lies, it just does *out = string(where) so if the actual
* string is longer than 'length' the returned pointer will be into the middle
* of the 'where' buffer.
*/
char * parseString(char * where, std::string * out, uint16_t length);
void init();
void shutdown();
/* Whether or not blocking is enabled by default for new sockets */
void blocking(bool b);
/* Enable/disable blocking for a specific socket */
bool blocking(Socket s, bool b);
/* Enable/disable NODELAY -- the Nagle algorithm for TCP */
bool noDelay(Socket s, bool b);
/* Whether or not new sockets re-use ports */
void reuseSockets(bool what);
void listen(Socket s) throw (NetworkException);
Socket accept(Socket s) throw (NetworkException);
Socket openReliable(int port);
Socket openUnreliable(int port);
Socket connectReliable(std::string server, int port);
Socket connectUnreliable(std::string server, int port);
void close(Socket);
void closeAll();
static std::vector<Socket> open_sockets;
}
#endif

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