// C++ informative line for the emacs editor: -*- C++ -*-
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
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 * help@hdfgroup.org.                                                        *
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#ifndef __H5FileAccPropList_H
#define __H5FileAccPropList_H

namespace H5 {

/*! \class FileAccPropList
    \brief Class FileAccPropList inherits from PropList and provides
    wrappers for the HDF5 file access property list.
*/
//  Inheritance: PropList -> IdComponent
class H5_DLLCPP FileAccPropList : public PropList {
   public:
        ///\brief Default file access property list.
        static const FileAccPropList& DEFAULT;

        // Creates a file access property list.
        FileAccPropList();

        // Modifies this property list to use the H5FD_STDIO driver
        void setStdio() const;

        // Set file driver for this property list
        void setDriver(hid_t new_driver_id, const void *new_driver_info) const;

        // Returns a low-level file driver identifier.
        hid_t getDriver() const;

        // Sets offset for family driver.
        void setFamilyOffset(hsize_t offset) const;

        // Gets offset for family driver.
        hsize_t getFamilyOffset() const;

        // Modifies this file access property list to use the sec2 driver.
        void setSec2() const;

        // Modifies this file access property list to use the H5FD_CORE
        // driver.
        void setCore (size_t increment, hbool_t backing_store) const;

        // Queries H5FD_CORE driver properties.
        void getCore (size_t& increment, hbool_t& backing_store) const;

        // Sets this file access properties list to the family driver.
        void setFamily(hsize_t memb_size, const FileAccPropList& memb_plist) const;

        // Returns information about the family file access property list.
        void getFamily(hsize_t& memb_size, FileAccPropList& memb_plist) const;
        FileAccPropList getFamily(hsize_t& memb_size) const;

        // Emulates the old split file driver,
        void setSplit(const FileAccPropList& meta_plist,
                      const FileAccPropList& raw_plist,
                      const char* meta_ext = ".meta",
                      const char* raw_ext = ".raw") const;
        void setSplit(const FileAccPropList& meta_plist,
                      const FileAccPropList& raw_plist,
                      const H5std_string& meta_ext = ".meta",
                      const H5std_string& raw_ext = ".raw") const;

        // Sets the maximum size of the data sieve buffer.
        void setSieveBufSize(size_t bufsize) const;

        // Returns the current settings for the data sieve buffer size
        // property
        size_t getSieveBufSize() const;

        // Sets the minimum size of metadata block allocations.
        void setMetaBlockSize(hsize_t &block_size) const;

        // Returns the current metadata block size setting.
        hsize_t getMetaBlockSize() const;

        // Modifies this file access property list to use the logging driver.
        void setLog(const char *logfile, unsigned flags, size_t buf_size) const;
        void setLog(const H5std_string& logfile, unsigned flags, size_t buf_size) const;

        // Sets alignment properties of this file access property list
        void setAlignment(hsize_t threshold = 1, hsize_t alignment = 1) const;

        // Retrieves the current settings for alignment properties from
        // this property list.
        void getAlignment(hsize_t& threshold, hsize_t& alignment) const;

        // Sets data type for multi driver.
        void setMultiType(H5FD_mem_t dtype) const;

        // Returns the data type property for MULTI driver.
        H5FD_mem_t getMultiType() const;

        // Sets the meta data cache and raw data chunk cache parameters.
        void setCache(int mdc_nelmts, size_t rdcc_nelmts, size_t rdcc_nbytes, double rdcc_w0) const;

        // Queries the meta data cache and raw data chunk cache parameters.
        void getCache(int& mdc_nelmts, size_t& rdcc_nelmts, size_t& rdcc_nbytes, double& rdcc_w0) const;

        // Sets the degree for the file close behavior.
        void setFcloseDegree(H5F_close_degree_t degree) const;

        // Returns the degree for the file close behavior.
        H5F_close_degree_t getFcloseDegree() const;

        // Sets file access property list to use the H5FD_DIRECT driver.
        void setFileAccDirect(size_t boundary, size_t block_size, size_t cbuf_size) const;

        // Retrieves information about the direct file access property list.
        void getFileAccDirect(size_t &boundary, size_t &block_size, size_t &cbuf_size) const;

        // Sets garbage collecting references flag.
        void setGcReferences(unsigned gc_ref = 0) const;

        // Returns garbage collecting references setting.
        unsigned getGcReferences() const;

        // Sets bounds on versions of library format to be used when creating
        // or writing objects.
        void setLibverBounds(H5F_libver_t libver_low, H5F_libver_t libver_high) const;

        // Gets the current settings for the library version format bounds.
        void getLibverBounds(H5F_libver_t& libver_low, H5F_libver_t& libver_high) const;

        ///\brief Returns this class name.
        virtual H5std_string fromClass () const { return("FileAccPropList"); }

        // Copy constructor: same as the original FileAccPropList.
        FileAccPropList(const FileAccPropList& original);

        // Creates a copy of an existing file access property list
        // using the property list id.
        FileAccPropList (const hid_t plist_id);

        // Noop destructor
        virtual ~FileAccPropList();

#ifndef DOXYGEN_SHOULD_SKIP_THIS

        // Deletes the global constant, should only be used by the library
        static void deleteConstants();

    private:
        static FileAccPropList* DEFAULT_;

        // Creates the global constant, should only be used by the library
        static FileAccPropList* getConstant();

#endif // DOXYGEN_SHOULD_SKIP_THIS

}; // end of FileAccPropList
} // namespace H5

#endif // __H5FileAccPropList_H
