PIIODevice::bytesAvailible()

fix pistringlist pibinarystream write
pibinarystream::binaryStreamSize()
PIByteArray pibinarystream read with more size fix
pistring pibinarystream read optimization
fix bug in PIIOBinaryStream read and write if failed
workaround in PIIOString::readDevice
PISPI readDevice bug Fixed

libs/main/io_utils/pipacketextractor.cpp

@@ -137,6 +137,12 @@ void PIPacketExtractor::setDevice(PIIODevice * device_) {
 }
 
 
+ssize_t PIPacketExtractor::bytesAvailible() const {
+	if (dev) return dev->bytesAvailible();
+	else return 0;
+}
+
+
 void PIPacketExtractor::setBufferSize(int new_size) {
 	buffer_size = new_size;
 	buffer.resize(buffer_size);