* added ThreadUtils and AutoObj

* started Simulator main object and interfaces


git-svn-id: https://scm.blissgarden.org/svn/lima/trunk@24 45c4679d-1946-429d-baad-37912b19538b

camera/simulator/include/SimuHwInterface.h

+#ifndef SIMUHWINTERFACE_H
+#define SIMUHWINTERFACE_H
+
+#include "HwInterface.h"
+#include "Simulator.h"
+
+namespace lima
+{
+
+class SimuHwInterface: public HwInterface
+{
+ public:
+	SimuHwInterface(Simulator& simu);
+	virtual ~SimuHwInterface();
+
+	virtual const CapList& getCapList() const;
+
+	virtual void reset(ResetLevel reset_level);
+	virtual void prepareAcq();
+	virtual void startAcq();
+	virtual void stopAcq();
+	virtual void getStatus(StatusType& status);
+	virtual int getNbAcquiredFrames();
+	virtual double getStartTimeStamp();
+
+ private:
+	Simulator& m_simu;
+	CapList m_cap_list;
+};
+
+
+
+}
+
+#endif // SIMUHWINTERFACE_H

camera/simulator/include/Simulator.h

+#ifndef SIMULATOR_H
+#define SIMULATOR_H
+
+#include "HwBufferMgr.h"
+#include "FrameBuilder.h"
+#include "ThreadUtils.h"
+
+namespace lima
+{
+
+class Simulator
+{
+ public:
+	enum Status {
+		Ready, Exposure, Readout,
+	};
+
+	Simulator();
+	~Simulator();
+
+	BufferCtrlMgr& getBufferMgr();
+	
+	void startAcq();
+	void stopAcq();
+
+	void setNbFrames(int  nb_frames);
+	void getNbFrames(int& nb_frames);
+
+	void setExpTime(double  exp_time);
+	void getExpTime(double& exp_time);
+
+ private:
+	class SimuThread : public CmdThread
+	{
+	public:
+		enum { // Status
+			Ready = MaxThreadStatus, Exposure, Readout,
+		};
+
+		enum { // Cmd 
+			StartAcq = MaxThreadCmd, StopAcq,
+		};
+		
+		
+		SimuThread(Simulator& simu);
+
+		
+	protected:
+		virtual void init();
+		virtual void execCmd(int cmd);
+	private:
+		Simulator& m_simu;
+
+	};
+	friend class SimuThread;
+
+	BufferCtrlMgr m_buffer_mgr;
+	FrameBuilder m_frame_builder;
+	double m_exp_time;
+	int m_nb_frames;
+
+	SimuThread m_thread;
+};
+
+} // namespace lima
+
+#endif // SIMULATOR_H

camera/simulator/src/Makefile

 
-objs = FrameBuilder.o
+objs = FrameBuilder.o Simulator.o
 	
 CXX = g++
-CXXFLAGS += -I../include -I../../../common/include -Wall
+INC = -I../include -I../../../common/include -I../../../hardware/include 
+CXXFLAGS += $(INC) -Wall -pthread
 
 all: 	clean $(objs)
 

camera/simulator/src/SimuHwInterface.cpp

+#include "SimuHwInterface.h"
+
+using namespace lima;
+
+
+SimuHwInterface::SimuHwInterface(Simulator& simu)
+	: m_simu(simu)
+{
+
+
+}
+

camera/simulator/src/Simulator.cpp

+#include "Simulator.h"
+
+using namespace lima;
+
+Simulator::SimuThread::SimuThread(Simulator& simu)
+	: m_simu(simu)
+{
+	start();
+	waitStatus(Ready);
+}
+
+void Simulator::SimuThread::init()
+{
+	setStatus(Ready);
+}
+
+void Simulator::SimuThread::execCmd(int cmd)
+{
+	
+}
+
+Simulator::Simulator()
+	: m_thread(*this)
+{
+	m_exp_time = 1.0;
+	m_nb_frames = 1;
+	
+}
+
+Simulator::~Simulator()
+{
+}
+
+BufferCtrlMgr& Simulator::getBufferMgr()
+{
+	return m_buffer_mgr;
+}
+

common/include/AutoObj.h

+#ifndef AUTOOBJ_H
+#define AUTOOBJ_H
+
+namespace lima
+{
+
+/********************************************************************
+ * AutoCounter
+ ********************************************************************/
+
+class AutoCounter
+{
+public:
+	AutoCounter() : r(1)
+	{}
+
+	void get()
+	{ r++; }
+
+	bool put()
+	{ return --r == 0; }
+
+	int count() const
+	{ return r; }
+
+private:
+	int r;
+};
+
+
+/********************************************************************
+ * AutoLock
+ ********************************************************************/
+
+template <class M>
+class AutoLock
+{
+public:
+	enum { UnLocked, Locked, TryLocked };
+
+	AutoLock(M& mutex, int state=Locked) 
+	{ d = new AutoLockData(mutex, state); }
+
+	AutoLock(const AutoLock& o) 
+	{ d = o.getData(); }
+
+	~AutoLock()
+	{ putData(); }
+	
+	void lock()
+	{ d->lock(); }
+
+	void unlock()
+	{ d->unlock(); }
+
+	bool tryLock()
+	{ return d->tryLock(); }
+
+	M& mutex() const
+	{ return d->mutex(); }
+
+	bool locked() const
+	{ return d->locked(); }
+
+private:
+	class AutoLockData
+	{
+	public:
+		AutoLockData(M& mutex, int state=Locked) 
+			: m(mutex), l(false) 
+		{
+			switch (state) { 
+			case Locked:    lock();    break;
+			case TryLocked: tryLock(); break;
+			default: break;
+			}
+		}
+
+		~AutoLockData()
+		{ 
+			if (l) 
+				unlock(); 
+		}
+
+		AutoLockData *get()
+		{ 
+			c.get(); 
+			return this; 
+		}
+
+		bool put()
+		{ 
+			return c.put(); 
+		}
+
+		void lock()
+		{ 
+			m.lock(); 
+			l = true; 
+		}
+
+		void unlock()
+		{ 
+			m.unlock(); 
+			l = false; 
+		}
+
+		bool tryLock()
+		{ 
+			l = m.tryLock(); 
+			return l;
+		}
+
+		M& mutex() const
+		{ return m; }
+
+		bool locked() const
+		{ return l; }
+
+	private:
+		AutoCounter c;
+		M& m;
+		bool l;
+	};
+
+	AutoLockData *getData() const
+	{ return d->get(); }
+
+	void putData()
+	{ 
+		if (d->put())
+			delete d; 
+		d = NULL;
+	}
+
+	AutoLockData *d;
+};
+
+
+/********************************************************************
+ * AutoPtr
+ ********************************************************************/
+
+template <class T, bool array=false>
+class AutoPtr
+{
+public:
+	AutoPtr() 
+	{ d = new AutoPtrData(); }
+
+	AutoPtr(T *ptr) 
+	{ d = new AutoPtrData(ptr); }
+
+	AutoPtr(const AutoPtr& o) 
+	{ d = o.getData(); }
+
+	~AutoPtr()
+	{ putData(); }
+
+	T *getPtr() const
+	{ return d->getPtr(); }
+
+	void setPtr(T *ptr)
+	{ 
+		putData(); 
+		d = new AutoPtrData(ptr); 
+	}
+
+	operator T*() const
+	{ return getPtr(); }
+
+	T *operator ->() const
+	{ return getPtr(); }
+
+	T& operator[](int i)
+	{ return getPtr()[i]; }
+
+	const T& operator[](int i) const
+	{ return getPtr()[i]; }
+
+
+	AutoPtr& operator =(T *ptr)
+	{ 
+		setPtr(ptr); 
+		return *this; 
+	}
+
+	AutoPtr& operator =(AutoPtr& o)
+	{
+		AutoPtrData *od = o.getData(); // protects against "a = a"
+		putData(); 
+		d = od;
+		return *this;
+	}
+
+	void free()
+	{ d->free(); }
+
+	T *forget()
+	{ 
+		T *ptr = d->forget(); 
+		putData();
+		d = new AutoPtrData(); 
+		return ptr;
+	}
+
+private:
+
+	class AutoPtrData
+	{
+	public:
+		AutoPtrData(T *ptr = NULL) : p(ptr)
+		{}
+
+		~AutoPtrData()
+		{ 
+			free();
+		}
+
+		AutoPtrData *get()
+		{ 
+			c.get(); 
+			return this; 
+		}
+
+		bool put()
+		{ 
+			return c.put();
+		}
+
+		void free()
+		{ 
+			if (!p)
+				return;
+			if (array) 
+				delete [] p; 
+			else 
+				delete p; 
+			p = NULL; 
+		}
+
+		T *forget()
+		{ 
+			T *ptr = getPtr();
+			if (c.count() == 1) 
+				p = NULL; 
+			return ptr;
+		}
+
+		T *getPtr() const
+		{ return p; }
+
+		void setPtr(T *ptr)
+		{ p = ptr; }
+
+	private:
+		T *p;
+		AutoCounter c;
+	};
+
+	AutoPtrData *getData() const
+	{ return d->get(); }
+
+	void putData()
+	{ 
+		if (d->put())
+			delete d; 
+		d = NULL;
+	}
+
+	AutoPtrData *d;
+};
+
+
+} // namespace lima
+
+#endif // AUTOOBJ_H

common/include/ThreadUtils.h

+#ifndef THREADUTILS_H
+#define THREADUTILS_H
+
+#include "Exceptions.h"
+#include "AutoObj.h"
+#include <pthread.h>
+
+namespace lima
+{
+
+class Mutex;
+class Cond;
+
+class MutexAttr
+{
+ public:
+	enum Type {
+		Normal, Recursive, ErrorCheck,
+	};
+
+	MutexAttr(Type type = Recursive);
+	MutexAttr(const MutexAttr& mutex_attr);
+	~MutexAttr();
+
+	void setType(Type type);
+	Type getType() const;
+
+	MutexAttr& operator =(Type type);
+	MutexAttr& operator =(const MutexAttr& mutex_attr);
+
+ private:
+	void destroy();
+	friend class Mutex;
+
+	pthread_mutexattr_t m_mutex_attr;
+};
+
+
+class Mutex
+{
+ public:
+	Mutex(MutexAttr mutex_attr = MutexAttr::Recursive);
+	~Mutex();
+
+	void lock();
+	void unlock();
+	bool tryLock();
+
+	MutexAttr getAttr();
+
+ private:
+	friend class Cond;
+
+	MutexAttr m_mutex_attr;
+	pthread_mutex_t m_mutex;
+};
+
+
+typedef AutoLock<Mutex> AutoMutex;
+
+class Cond
+{
+ public:
+	Cond();
+	~Cond();
+
+	void wait(Mutex& mutex);
+	void signal();
+
+ private:
+	pthread_cond_t m_cond;
+};
+
+
+class Thread
+{
+ public:
+	Thread();
+	virtual ~Thread();
+
+	virtual void start();
+	virtual void abort();
+
+	bool hasStarted();
+	bool hasFinished();
+
+ protected:
+	virtual void threadFunction() = 0;
+	
+ private:
+	static void *staticThreadFunction(void *data);
+
+	pthread_t m_thread;
+	bool m_started;
+	bool m_finished;
+};
+
+
+class CmdThread
+{
+ public:
+	enum { // Status
+		InInit, Stopped, Finished, MaxThreadStatus,
+	};
+
+	enum { // Cmd
+		None, Init, Stop, Abort, MaxThreadCmd,
+	};
+
+	CmdThread();
+	virtual ~CmdThread();
+
+	virtual void start();
+	virtual void abort();
+
+	void sendCmd(int cmd);
+	int getStatus();
+	void waitStatus(int status);
+	int waitNotStatus(int status);
+	
+ protected:
+	virtual void init() = 0;
+	virtual void execCmd(int cmd) = 0;
+
+	int waitNextCmd();
+	void setStatus(int status);
+
+	AutoMutex lock();
+	AutoMutex tryLock();
+
+ private:
+	class AuxThread : public Thread
+	{
+	public:
+		AuxThread(CmdThread& master);
+		virtual ~AuxThread();
+	protected:
+		void threadFunction();
+		CmdThread& m_master;
+	};
+	friend class AuxThread;
+	void cmdLoop();
+
+	AuxThread m_thread;
+	Mutex m_mutex;
+	Cond m_cond;
+	int m_status;
+	int m_cmd;
+};
+
+
+}
+
+#endif // THREADUTILS_H

common/src/Makefile

 
-common-objs := SizeUtils.o Timestamp.o
+common-objs := SizeUtils.o Timestamp.o ThreadUtils.o
 	
-CXXFLAGS += -I../include -Wall
+CXXFLAGS += -I../include -Wall -pthread
 
 all:	clean Common.o
 

common/src/ThreadUtils.cpp

+#include "ThreadUtils.h"
+#include <errno.h>
+
+using namespace lima;
+
+MutexAttr::MutexAttr(Type type)
+{
+	if (pthread_mutexattr_init(&m_mutex_attr) != 0)
+		throw LIMA_COM_EXC(Error, "Error initializing mutex attr");
+
+	try {
+		setType(type);
+	} catch (...) {
+		destroy();
+		throw;
+	}
+}
+
+