client_device-vdr-1.5.1-fixes.patch by Petri Hintukainen (#219)

- VDR 1.5.0 calls some device members in different order and
  streamdev can't currently handle this.
- do not trust in OpenDvr/CloseDvr, instead keep count of active PIDs,
  open data connection when it is needed and close it only when there
  are no active PIDs
  (closing data connection unsubscribes all pids at server end)
- some sanity checks on server side
Modified Files:
	client/device.c client/device.h server/connectionVTP.c

client/device.c

@@ -1,5 +1,5 @@
 /*
- *  $Id: device.c,v 1.9 2007/04/23 11:42:16 schmirl Exp $
+ *  $Id: device.c,v 1.10 2007/04/24 10:43:40 schmirl Exp $
  */
  
 #include "client/device.h"
@@ -42,6 +42,8 @@ cStreamdevDevice::cStreamdevDevice(void) {
 #endif
 
 	m_Device = this;
+	m_Pids = 0;
+	m_DvrClosed = true;
 
 	if (StreamdevClientSetup.SyncEPG)	
 		ClientSocket.SynchronizeEPG();
@@ -132,32 +134,85 @@ bool cStreamdevDevice::SetChannelDevice(const cChannel *Channel,
 bool cStreamdevDevice::SetPid(cPidHandle *Handle, int Type, bool On) {
 	Dprintf("SetPid, Pid=%d, Type=%d, On=%d, used=%d\n", Handle->pid, Type, On,
 			Handle->used);
-	if (Handle->pid && (On || !Handle->used))
-		return ClientSocket.SetPid(Handle->pid, On);
-	return true;
+	LOCK_THREAD;
+
+	if (On && !m_TSBuffer) {
+		Dprintf("SetPid: no data connection -> OpenDvr()");
+		OpenDvrInt();
+	}
+
+	bool res = true; 
+	if (Handle->pid && (On || !Handle->used)) {
+		res = ClientSocket.SetPid(Handle->pid, On);
+
+		m_Pids += (!res) ? 0 : On ? 1 : -1;
+		if (m_Pids < 0) 
+			m_Pids = 0;
+
+		if(m_Pids < 1 && m_DvrClosed) { 
+			Dprintf("SetPid: 0 pids left -> CloseDvr()"); 
+			CloseDvrInt(); 
+		}
+	}
+
+	return res;
+}
+
+bool cStreamdevDevice::OpenDvrInt(void) {
+	Dprintf("OpenDvrInt\n");
+	LOCK_THREAD;
+
+	CloseDvrInt();
+	if (m_TSBuffer) {
+		Dprintf("cStreamdevDevice::OpenDvrInt(): DVR connection already open\n");
+		return true;
+	}
+
+	Dprintf("cStreamdevDevice::OpenDvrInt(): Connecting ...\n");
+	if (ClientSocket.CreateDataConnection(siLive)) {
+		m_TSBuffer = new cTSBuffer(*ClientSocket.DataSocket(siLive), MEGABYTE(2), CardIndex() + 1);
+		return true;
+	}
+	esyslog("cStreamdevDevice::OpenDvrInt(): DVR connection FAILED");
+	return false;
 }
 
 bool cStreamdevDevice::OpenDvr(void) {
 	Dprintf("OpenDvr\n");
-	CloseDvr();
-	if (ClientSocket.CreateDataConnection(siLive)) {
-		//m_Assembler = new cStreamdevAssembler(ClientSocket.DataSocket(siLive));
-		//m_TSBuffer = new cTSBuffer(m_Assembler->ReadPipe(), MEGABYTE(2), CardIndex() + 1);
-		m_TSBuffer = new cTSBuffer(*ClientSocket.DataSocket(siLive), MEGABYTE(2), CardIndex() + 1);
-		Dprintf("waiting\n");
-		//m_Assembler->WaitForFill();
-		Dprintf("resuming\n");
-		return true;
+	LOCK_THREAD;
+
+	m_DvrClosed = false;
+	return OpenDvrInt();
+}
+
+void cStreamdevDevice::CloseDvrInt(void) {
+	Dprintf("CloseDvrInt\n");
+	LOCK_THREAD;
+
+	if (ClientSocket.CheckConnection()) {
+		if (!m_DvrClosed) {
+			Dprintf("cStreamdevDevice::CloseDvrInt(): m_DvrClosed=false -> not closing yet\n");
+			return;
+		}
+		if (m_Pids > 0) {
+			Dprintf("cStreamdevDevice::CloseDvrInt(): %d active pids -> not closing yet\n", m_Pids);
+			return;
+		}
+	} else {
+		Dprintf("cStreamdevDevice::CloseDvrInt(): Control connection gone !\n");
 	}
-	return false;
+
+	Dprintf("cStreamdevDevice::CloseDvrInt(): Closing DVR connection\n");
+	DELETENULL(m_TSBuffer);
+	ClientSocket.CloseDvr();
 }
 
 void cStreamdevDevice::CloseDvr(void) {
 	Dprintf("CloseDvr\n");
+	LOCK_THREAD;
 
-	//DELETENULL(m_Assembler);
-	DELETENULL(m_TSBuffer);
-	ClientSocket.CloseDvr();
+	m_DvrClosed = true;
+	CloseDvrInt();
 }
 
 bool cStreamdevDevice::GetTSPacket(uchar *&Data) {

client/device.h

@@ -1,5 +1,5 @@
 /*
- *  $Id: device.h,v 1.4 2007/04/23 11:42:16 schmirl Exp $
+ *  $Id: device.h,v 1.5 2007/04/24 10:43:40 schmirl Exp $
  */
  
 #ifndef VDR_STREAMDEV_DEVICE_H
@@ -25,9 +25,14 @@ private:
 #if VDRVERSNUM >= 10307
 	cStreamdevFilters   *m_Filters;
 #endif
+	int                  m_Pids;
+	bool                 m_DvrClosed;
 
 	static cStreamdevDevice *m_Device;
 
+	bool OpenDvrInt(void);
+	void CloseDvrInt(void);
+
 protected:
 	virtual bool SetChannelDevice(const cChannel *Channel, bool LiveView);
 	virtual bool HasLock(int TimeoutMs)