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/*
* \file ocsd_lib_dcd_register.h
* \brief OpenCSD : Library decoder registration and management.
*
* \copyright Copyright (c) 2016, ARM Limited. All Rights Reserved.
*/
#ifndef ARM_OCSD_LIB_DCD_REGISTER_H_INCLUDED
#define ARM_OCSD_LIB_DCD_REGISTER_H_INCLUDED
/*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <map>
#include "ocsd_if_types.h"
#include "common/ocsd_dcd_mngr_i.h"
/*!
* @class OcsdLibDcdRegister : Registers decoders with the library
*
* library decoder register class allows decoders to be registered by name, and the register allows clients to access
* the list of names of registerd decoders.
*
* The decoders in the library are accessed through the decoder manager interface. This provides a set of functions to allow
* the creation, manipulation and destruction of registered decoders
*
*/
class OcsdLibDcdRegister
{
public:
static OcsdLibDcdRegister *getDecoderRegister();
static void deregisterAllDecoders(); //!< library cleanup - deregisters decoder managers and destroys the register object.
const ocsd_err_t registerDecoderTypeByName(const std::string &name, IDecoderMngr *p_decoder_fact); //!< register a decoder manager interface
const ocsd_err_t getDecoderMngrByName(const std::string &name, IDecoderMngr **p_decoder_mngr);
const bool isRegisteredDecoder(const std::string &name);
const bool getFirstNamedDecoder(std::string &name);
const bool getNextNamedDecoder(std::string &name);
private:
void registerBuiltInDecoders(); //!< register the list of build in decoder managers on first access of getDecoderMngrByName.
std::map<const std::string, IDecoderMngr *> m_decoder_mngrs; //!< map linking names to decoder manager interfaces.
std::map<const std::string, IDecoderMngr *>::const_iterator m_iter; //!< iterator for name search.
// singleton pattern - need just one of these in the library - ensure all default constructors are private.
OcsdLibDcdRegister();
OcsdLibDcdRegister(OcsdLibDcdRegister const &) {};
OcsdLibDcdRegister& operator=(OcsdLibDcdRegister const &){};
~OcsdLibDcdRegister();
static OcsdLibDcdRegister *m_p_libMngr;
static bool m_b_registeredBuiltins;
};
/*!
* Typedef of function signature to create a decoder manager.
*
* @param *name : Registered name of the decoder.
*/
typedef IDecoderMngr *(*CreateMngr)(const std::string &name);
/*!
* Template function to create a specific decoder manager class object.
*
* @param &name : Registered name of the decoder.
*
* @return IDecoderMngr * : pointer to the decoder manager base class interface.
*/
template <typename T> IDecoderMngr *createManagerInst(const std::string &name)
{
return new (std::nothrow)T(name);
}
/*! Structure to contain the information needed to create and register a builtin decoder
* manager with the library
*/
typedef struct built_in_decoder_info {
IDecoderMngr *pMngr; //!< pointer to created decoder manager
CreateMngr PFn; //!< function to create the decoder manager.
const char *name; //!< registered name of the decoder.
} built_in_decoder_info_t;
//! Define to use to fill in an array of built_in_decoder_info_t structures.
#define CREATE_BUILTIN_ENTRY(C,N) { 0, createManagerInst<C>, N }
#endif // ARM_OCSD_LIB_DCD_REGISTER_H_INCLUDED
/* End of File ocsd_lib_dcd_register.h */
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