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/thread/pigrabberbase.h

@@ -147,10 +147,10 @@ protected:
 	mutable PIMutex rec_mutex;
 
 private:
-	void begin() {
+	void begin() override {
 		init();
 	}
-	void run() {
+	void run() override {
 		if (!isOpened()) {
 			open();
 			diag_.reset();
@@ -185,7 +185,7 @@ private:
 		}
 	}
 
-	void end() {
+	void end() override {
 		stopRecord();
 		close();
 	}