Session< T > Class Template Reference

Key-value storage to make a stateful MEX function. More...

#include <dispatch.h>

Public Types
typedef std::map< intptr_t, std::shared_ptr< T > >	InstanceMap

Static Public Member Functions
static intptr_t	create (T *instance)
	Create an instance.
static void	destroy (intptr_t id)
	Destroy an instance.
static void	destroy (const mxArray *pointer)
static T *	get (intptr_t id)
	Retrieve an instance or throw if no instance is found.
static T *	get (const mxArray *pointer)
static const T &	getConst (intptr_t id)
	Retrieve a const instance or throw if no instance is found.
static const T &	getConst (const mxArray *pointer)
static bool	exist (intptr_t id)
	Check if the given id exists.
static bool	exist (const mxArray *pointer)
static void	clear ()
	Clear all session instances.
static const InstanceMap &	getInstanceMap ()
	Get instance map.

Private Member Functions
	Session ()
	Constructor prohibited.
	~Session ()

Static Private Member Functions
static intptr_t	getIntPointer (const mxArray *pointer)
	Convert mxArray to intptr_t.
static InstanceMap *	getInstances ()
	Get static instance storage.

Detailed Description

template<class T>
class mexplus::Session< T >

Key-value storage to make a stateful MEX function.

#include <mexplus/dispatch.h>
 
using namespace std;
using namespace mexplus;
 
class Database;
 
template class Session<Database>;
 
MEX_DEFINE(open) (int nlhs, mxArray* plhs[],
                  int nrhs, const mxArray* prhs[]) {
  unique_ptr<Database> database(new Database(...));
  database->open(...);
  intptr_t session_id = Session<Database>::create(database.release());
  plhs[0] = mxCreateDoubleScalar(session_id);
}
 
MEX_DEFINE(query) (int nlhs, mxArray* plhs[],
                   int nrhs, const mxArray* prhs[]) {
  intptr_t session_id = mxGetScalar(prhs[0]);
  Database* database = Session<Database>::get(session_id);
  database->query(...);
}
 
MEX_DEFINE(close) (int nlhs, mxArray* plhs[],
                   int nrhs, const mxArray* prhs[]) {
  intptr_t session_id = mxGetScalar(prhs[0]);
  Session<Database>::destroy(session_id);
}

Member Typedef Documentation

InstanceMap

template<class T >

typedef std::map<intptr_t, std::shared_ptr<T> > InstanceMap

Constructor & Destructor Documentation

Session()

template<class T >

Session ( )

inlineprivate

Constructor prohibited.

~Session()

template<class T >

~Session ( )

inlineprivate

Member Function Documentation

clear()

template<class T >

static void clear ( )

inlinestatic

Clear all session instances.

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create()

template<class T >

static intptr_t create ( T * instance )

inlinestatic

Create an instance.

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destroy() [1/2]

template<class T >

static void destroy ( const mxArray * pointer )

inlinestatic

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destroy() [2/2]

template<class T >

static void destroy ( intptr_t id )

inlinestatic

Destroy an instance.

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exist() [1/2]

template<class T >

static bool exist ( const mxArray * pointer )

inlinestatic

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exist() [2/2]

template<class T >

static bool exist ( intptr_t id )

inlinestatic

Check if the given id exists.

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get() [1/2]

template<class T >

static T * get ( const mxArray * pointer )

inlinestatic

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get() [2/2]

template<class T >

static T * get ( intptr_t id )

inlinestatic

Retrieve an instance or throw if no instance is found.

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getConst() [1/2]

template<class T >

static const T & getConst ( const mxArray * pointer )

inlinestatic

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getConst() [2/2]

template<class T >

static const T & getConst ( intptr_t id )

inlinestatic

Retrieve a const instance or throw if no instance is found.

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getInstanceMap()

template<class T >

static const InstanceMap & getInstanceMap ( )

inlinestatic

Get instance map.

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getInstances()

template<class T >

static InstanceMap * getInstances ( )

inlinestaticprivate

Get static instance storage.

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getIntPointer()

template<class T >

static intptr_t getIntPointer ( const mxArray * pointer )

inlinestaticprivate

Convert mxArray to intptr_t.

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The documentation for this class was generated from the following file:

• F:/dev/projects/MocoExtendProblem/libs/mexplus/dispatch.h