Add an Init method for blocking drivers to be decorated using JackThreadedDriver class.

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@2098 0c269be4-1314-0410-8aa9-9f06e86f4224

ChangeLog

@@ -23,6 +23,7 @@ Fernando Lopez-Lezcano
 2008-03-28 Stephane Letz  <letz@grame.fr>
 		
 	* Correct PortRegister, port name checking must be done on server side.
+	* Add an Init method for blocking drivers to be decorated using JackThreadedDriver class.
 
 2008-03-27 Stephane Letz  <letz@grame.fr>
 		

common/JackDriver.h

@@ -75,7 +75,7 @@ class EXPORT JackDriverInterface
         virtual int SetSampleRate(jack_nframes_t sample_rate) = 0;
 
         virtual int Process() = 0;
-
+    
         virtual void SetMaster(bool onoff) = 0;
         virtual bool GetMaster() = 0;
         virtual void AddSlave(JackDriverInterface* slave) = 0;
@@ -85,19 +85,38 @@ class EXPORT JackDriverInterface
         virtual bool IsRealTime() = 0;
 };
 
+/*
+\brief The base interface for blocking drivers.
+*/
+
+class EXPORT JackBlockingInterface
+{
+    
+    public:
+    
+        JackBlockingInterface()
+        {}
+        virtual ~JackBlockingInterface()
+        {}
+
+        virtual bool Init() = 0;  /* To be called by the wrapping thread Init method when the driver is a "blocking" one */
+
+};
+
 /*!
 \brief The base interface for drivers clients.
 */
 
 class EXPORT JackDriverClientInterface : public JackDriverInterface, public JackClientInterface
-    {};
+{};
 
 /*!
 \brief The base class for drivers clients.
 */
 
-class EXPORT JackDriverClient : public JackDriverClientInterface
+class EXPORT JackDriverClient : public JackDriverClientInterface, public JackBlockingInterface
 {
+    
     private:
 
         std::list<JackDriverInterface*> fSlaveList;
@@ -208,7 +227,12 @@ class EXPORT JackDriver : public JackDriverClient
         int ClientNotify(int refnum, const char* name, int notify, int sync, int value1, int value2);
 
         void SetupDriverSync(int ref, bool freewheel);
-
+        
+        virtual bool Init()
+        {
+            return true;
+        }
+   
 };
 
 } // end of namespace

common/JackThreadedDriver.cpp

@@ -89,4 +89,9 @@ bool JackThreadedDriver::Execute()
     return (Process() == 0);
 }
 
+bool JackThreadedDriver::Init()
+{
+    return fDriver->Init();
+}
+
 } // end of namespace

common/JackThreadedDriver.h

@@ -143,8 +143,8 @@ class JackThreadedDriver : public JackDriverClientInterface, public JackRunnable
         }
 
         // JackRunnableInterface interface
-
         virtual bool Execute();
+        virtual bool Init();
 
 };