add pause to PIBaseTransfer

need test

git-svn-id: svn://db.shs.com.ru/pip@79 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

src/io/pibasetransfer.h

@@ -35,6 +35,8 @@ public:
 
 	bool isSending() const {return is_sending;}
 	bool isReceiving() const {return is_receiving;}
+	bool isPause() const {return is_pause;}
+	void setPause(bool pause_);
 
 	void setPacketSize(int size) {packet_size = size;}
 	int packetSize() const {return packet_size;}
@@ -51,15 +53,19 @@ public:
 	const PIDiagnostics &diagnostic() {return diag;}
 
 	EVENT(receiveStarted)
+	EVENT(paused)
+	EVENT(resumed)
 	EVENT1(receiveFinished, bool, ok)
 	EVENT(sendStarted)
 	EVENT1(sendFinished, bool, ok)
 	EVENT1(sendRequest, PIByteArray &, data)
 	EVENT_HANDLER1(void, received, PIByteArray, data);
+	EVENT_HANDLER(void, pause) {setPause(true);}
+	EVENT_HANDLER(void, resume) {setPause(false);}
 
 protected:
 	uint packet_header_size, part_header_size;
-	bool break_, is_sending, is_receiving;
+	bool break_, is_sending, is_receiving, is_pause;
 	PIString state_string;
 	llong bytes_all, bytes_cur;
 	
@@ -71,7 +77,7 @@ protected:
 	
 private:
 
-	enum PacketType {pt_Unknown, pt_Data, pt_ReplySuccess, pt_ReplyInvalid, pt_Break, pt_Start};
+	enum PacketType {pt_Unknown, pt_Data, pt_ReplySuccess, pt_ReplyInvalid, pt_Break, pt_Start, pt_Pause};
 
 # pragma pack(push,1)
 	struct StartRequest {
@@ -88,7 +94,7 @@ private:
 	double timeout_;
 	PIVector<PIVector<Part> > session;
 	PIVector<PacketType> replies;
-	PITimeMeasurer send_tm;
+	PITimeMeasurer send_tm, pause_tm;
 	PacketHeader header;
 	CRC_16 crc;
 	int replies_cnt, send_queue;