cpp utils files, network and a smal util class

net/socketstream.cpp

@@ -0,0 +1,47 @@
+#include "socketstream.h"
+using namespace zutil;
+
+SocketStreamBuffer::SocketStreamBuffer(SocketIO &s) : soc(s){
+	pBeg = pBuffer;
+	pCur = pBuffer;	
+	pEnd = pBuffer;
+	//pEnd = pBuffer + BUFFER_SIZE;
+	streambuf::setp(pBeg, pEnd);
+	
+	gBeg = gBuffer;
+	gCur = gBuffer;
+	gEnd = gBuffer + BUFFER_SIZE;
+	streambuf::setg(gBeg, gCur, gEnd);
+}
+
+int SocketStreamBuffer::underflow() {
+	int recv_bytes = soc.read(gBuffer, BUFFER_SIZE);
+	
+	if(recv_bytes > 0){
+		gCur = gBuffer;
+		gEnd = gBuffer+recv_bytes;
+		streambuf::setg(gBeg, gCur, gEnd);
+		
+		return Tr::not_eof( *gCur );
+	}
+	return Tr::eof();
+}
+
+int SocketStreamBuffer::overflow(int c) {
+	if(c == Tr::eof()) 
+		return Tr::not_eof(c);
+	soc.write(c);
+	return c;
+	/*if(sync() >= 0)
+		return c;
+	return Tr::eof();*/
+}/*
+int SocketStreamBuffer::sync() {
+	if( soc.write( pBuffer, pCur-pBeg )){
+		pCur = pBuffer;
+		streambuf::setp(pBeg, pEnd);
+		return 0;
+	}
+	return -1;
+}*/
+