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/*
GameSpy GT2 SDK
Dan "Mr. Pants" Schoenblum
dan@gamespy.com
Copyright 2002 GameSpy Industries, Inc
devsupport@gamespy.com
*/
#include "gt2Filter.h"
#include "gt2Callback.h"
#include "gt2Message.h"
#include "gt2Utility.h"
static int GS_STATIC_CALLBACK gti2SendFiltersCompare
(
const void * elem1,
const void * elem2
)
{
gt2SendFilterCallback * callback1 = (gt2SendFilterCallback *)elem1;
gt2SendFilterCallback * callback2 = (gt2SendFilterCallback *)elem2;
if(*callback1 == *callback2)
return 0;
return 1;
}
static int GS_STATIC_CALLBACK gti2ReceiveFiltersCompare
(
const void * elem1,
const void * elem2
)
{
gt2ReceiveFilterCallback * callback1 = (gt2ReceiveFilterCallback *)elem1;
gt2ReceiveFilterCallback * callback2 = (gt2ReceiveFilterCallback *)elem2;
if(*callback1 == *callback2)
return 0;
return 1;
}
GT2Bool gti2AddSendFilter(GT2Connection connection, gt2SendFilterCallback callback)
{
// Check if we have a send filters list.
if(!connection->sendFilters)
return GT2False;
// Add this callback to the list.
ArrayAppend(connection->sendFilters, &callback);
// Return GT2True if it was added.
return (ArraySearch(connection->sendFilters, &callback, gti2SendFiltersCompare, 0, 0) != NOT_FOUND);
}
GT2Bool gti2AddReceiveFilter(GT2Connection connection, gt2ReceiveFilterCallback callback)
{
// Check if we have a receive filters list.
if(!connection->receiveFilters)
return GT2False;
// Add this callback to the list.
ArrayAppend(connection->receiveFilters, &callback);
// Return GT2True if it was added.
return (ArraySearch(connection->receiveFilters, &callback, gti2ReceiveFiltersCompare, 0, 0) != NOT_FOUND);
}
void gti2RemoveSendFilter(GT2Connection connection, gt2SendFilterCallback callback)
{
int index;
// Check for no filters.
if(!connection->sendFilters)
return;
// check for removing all
if(!callback)
{
// Remove all the filters.
ArrayClear(connection->sendFilters);
return;
}
// Find it.
index = ArraySearch(connection->sendFilters, &callback, gti2SendFiltersCompare, 0, 0);
if(index == NOT_FOUND)
return;
// Remove it.
ArrayRemoveAt(connection->sendFilters, index);
}
void gti2RemoveReceiveFilter(GT2Connection connection, gt2ReceiveFilterCallback callback)
{
int index;
// Check for no filters.
if(!connection->receiveFilters)
return;
// check for removing all
if(!callback)
{
// Remove all the filters.
ArrayClear(connection->receiveFilters);
return;
}
// Find it.
index = ArraySearch(connection->receiveFilters, &callback, gti2ReceiveFiltersCompare, 0, 0);
if(index == NOT_FOUND)
return;
// Remove it.
ArrayRemoveAt(connection->receiveFilters, index);
}
GT2Bool gti2FilteredSend(GT2Connection connection, int filterID, const GT2Byte * message, int len, GT2Bool reliable)
{
int num;
// Make sure we're connected.
if(connection->state != GTI2Connected)
return GT2True;
// check the message and len
gti2MessageCheck(&message, &len);
// Get the number of filters.
num = ArrayLength(connection->sendFilters);
// Check if its a valid ID.
if(filterID < 0)
return GT2True;
if(filterID >= num)
return GT2True;
// Is it the last one?
if(filterID == (num - 1))
{
// Do the actual send.
if(!gti2Send(connection, message, len, reliable))
return GT2False;
}
else
{
// Filter it.
if(!gti2SendFilterCallback(connection, ++filterID, message, len, reliable))
return GT2False;
}
return GT2True;
}
GT2Bool gti2FilteredReceive(GT2Connection connection, int filterID, GT2Byte * message, int len, GT2Bool reliable)
{
int num;
// Make sure we're connected.
if(connection->state != GTI2Connected)
return GT2True;
// Get the number of filters.
num = ArrayLength(connection->receiveFilters);
// Check if its a valid ID.
if(filterID < 0)
return GT2True;
if(filterID >= num)
return GT2True;
// Is it the last one?
if(filterID == (num - 1))
{
// call the callback
if(!gti2ReceivedCallback(connection, message, len, reliable))
return GT2False;
}
else
{
// Filter it.
if(!gti2ReceiveFilterCallback(connection, ++filterID, message, len, reliable))
return GT2False;
}
return GT2True;
}
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