Initial

socket/CACHE.CPP

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+#include <socket/cache.hpp>
+
+WORD ReceiveCache::receive(char *pBuffer,DWORD lengthBuffer,DWORD &itemCount,BOOL waitForData)
+{
+  itemCount=0;
+  if(!hasData(waitForData))return FALSE;
+	if(itemsInCache()<=lengthBuffer)
+	{
+	  ::memcpy(pBuffer,&mReceiveCache[cursor()],itemsInCache());
+		itemCount=itemsInCache();
+		cursor(cursor()+itemsInCache());
+		itemsInCache(0);
+	}
+	else
+	{
+	  ::memcpy(pBuffer,&mReceiveCache[cursor()],lengthBuffer);
+		itemCount=lengthBuffer;
+		cursor(cursor()+lengthBuffer);
+		itemsInCache(itemsInCache()-lengthBuffer);
+	}
+	return TRUE;
+}
+
+WORD ReceiveCache::receive(char &charData,BOOL waitForData)
+{
+  if(!hasData(waitForData))return FALSE;
+	charData=mReceiveCache[cursor()];
+	cursor(cursor()+1);
+	itemsInCache(itemsInCache()-1);
+	return TRUE;
+}
+
+WORD ReceiveCache::cacheData(void)
+{
+  int receiveCount;
+
+	while(!isReady(TRUE));
+  if(!isReady(TRUE))return FALSE;
+	if((receiveCount=::recv(socket(),(char*)(BYTE*)&mReceiveCache[0],mReceiveCache.size(),0L))==SOCKET_ERROR||!receiveCount)return FALSE;
+	itemsInCache(receiveCount);
+  cursor(0);
+	return TRUE;
+}
+
+WORD ReceiveCache::hasData(BOOL acquireData)
+{
+  if(itemsInCache()>0)return TRUE;
+	if(!isReady(FALSE)&&!acquireData)return FALSE;
+	return cacheData();
+}
+
+WORD ReceiveCache::isReady(WORD waitForData)const
+{
+	fd_set setDescriptor;
+	timeval waitTime;
+
+	setDescriptor.fd_count=1;
+	setDescriptor.fd_array[0]=socket();
+	if(waitForData){waitTime.tv_sec=WaitTime;waitTime.tv_usec=0;}
+	else {waitTime.tv_sec=0;waitTime.tv_usec=500;}
+	return ::select(0,&setDescriptor,0,0,&waitTime);
+}