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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Programmer: Quincey Koziol <koziol@hdfgroup.org>
* Friday, January 19, 2007
*
* Purpose: This file contains inline definitions for "generic" routines
* supporting a "shared message interface" (ala Java) for object
* header messages that can be shared. This interface is
* dependent on a bunch of macros being defined which define
* the name of the interface and "real" methods which need to
* be implemented for each message class that supports the
* shared message interface.
*/
#ifndef H5Oshared_H
#define H5Oshared_H
/*-------------------------------------------------------------------------
* Function: H5O_SHARED_DECODE
*
* Purpose: Decode an object header message that may be shared.
*
* Note: The actual name of this routine can be different in each source
* file that this header file is included in, and must be defined
* prior to including this header file.
*
* Return: Success: Pointer to the new message in native form
* Failure: NULL
*
* Programmer: Quincey Koziol
* Friday, January 19, 2007
*
*-------------------------------------------------------------------------
*/
static H5_inline void *
H5O_SHARED_DECODE(H5F_t *f, hid_t dxpl_id, unsigned mesg_flags, const uint8_t *p)
{
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_SHARED_DECODE)
#ifndef H5O_SHARED_TYPE
#error "Need to define H5O_SHARED_TYPE macro!"
#endif /* H5O_SHARED_TYPE */
#ifndef H5O_SHARED_DECODE
#error "Need to define H5O_SHARED_DECODE macro!"
#endif /* H5O_SHARED_DECODE */
#ifndef H5O_SHARED_DECODE_REAL
#error "Need to define H5O_SHARED_DECODE_REAL macro!"
#endif /* H5O_SHARED_DECODE_REAL */
/* Check for shared message */
if(mesg_flags & H5O_MSG_FLAG_SHARED) {
/* Retrieve native message info indirectly through shared message */
if(NULL == (ret_value = H5O_shared_decode_new(f, dxpl_id, p, H5O_SHARED_TYPE)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTDECODE, NULL, "unable to decode shared message")
} /* end if */
else {
/* Decode native message directly */
if(NULL == (ret_value = H5O_SHARED_DECODE_REAL(f, dxpl_id, mesg_flags, p)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTDECODE, NULL, "unable to decode native message")
} /* end else */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_SHARED_DECODE() */
/*-------------------------------------------------------------------------
* Function: H5O_SHARED_ENCODE
*
* Purpose: Encode an object header message that may be shared.
*
* Note: The actual name of this routine can be different in each source
* file that this header file is included in, and must be defined
* prior to including this header file.
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* Friday, January 19, 2007
*
*-------------------------------------------------------------------------
*/
static H5_inline herr_t
H5O_SHARED_ENCODE(H5F_t *f, uint8_t *p, const void *_mesg)
{
const H5O_shared_t *sh_mesg = (const H5O_shared_t *)_mesg; /* Pointer to shared message portion of actual message */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_SHARED_ENCODE)
#ifndef H5O_SHARED_TYPE
#error "Need to define H5O_SHARED_TYPE macro!"
#endif /* H5O_SHARED_TYPE */
#ifndef H5O_SHARED_ENCODE
#error "Need to define H5O_SHARED_ENCODE macro!"
#endif /* H5O_SHARED_ENCODE */
#ifndef H5O_SHARED_ENCODE_REAL
#error "Need to define H5O_SHARED_ENCODE_REAL macro!"
#endif /* H5O_SHARED_ENCODE_REAL */
/* Check for shared message */
if(H5O_IS_SHARED(sh_mesg->flags)) {
/* Encode shared message into buffer */
if(H5O_shared_encode_new(f, p, sh_mesg) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTENCODE, FAIL, "unable to encode shared message")
} /* end if */
else {
/* Encode native message directly */
if(H5O_SHARED_ENCODE_REAL(f, p, _mesg) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTENCODE, FAIL, "unable to encode native message")
} /* end else */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_SHARED_ENCODE() */
/*-------------------------------------------------------------------------
* Function: H5O_SHARED_SIZE
*
* Purpose: Returns the length of an encoded message.
*
* Note: The actual name of this routine can be different in each source
* file that this header file is included in, and must be defined
* prior to including this header file.
*
* Return: Success: Length
* Failure: 0
*
* Programmer: Quincey Koziol
* Friday, January 19, 2007
*
*-------------------------------------------------------------------------
*/
static H5_inline size_t
H5O_SHARED_SIZE(const H5F_t *f, const void *_mesg)
{
const H5O_shared_t *sh_mesg = (const H5O_shared_t *)_mesg; /* Pointer to shared message portion of actual message */
size_t ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_SHARED_SIZE)
#ifndef H5O_SHARED_TYPE
#error "Need to define H5O_SHARED_TYPE macro!"
#endif /* H5O_SHARED_TYPE */
#ifndef H5O_SHARED_SIZE
#error "Need to define H5O_SHARED_SIZE macro!"
#endif /* H5O_SHARED_SIZE */
#ifndef H5O_SHARED_SIZE_REAL
#error "Need to define H5O_SHARED_SIZE_REAL macro!"
#endif /* H5O_SHARED_SIZE_REAL */
/* Check for shared message */
if(H5O_IS_SHARED(sh_mesg->flags)) {
/* Retrieve encoded size of shared message */
if(0 == (ret_value = H5O_shared_size_new(f, sh_mesg)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, 0, "unable to retrieve encoded size of shared message")
} /* end if */
else {
/* Retrieve size of native message directly */
if(0 == (ret_value = H5O_SHARED_SIZE_REAL(f, _mesg)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTGET, 0, "unable to retrieve encoded size of native message")
} /* end else */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_SHARED_SIZE() */
/*-------------------------------------------------------------------------
* Function: H5O_SHARED_DELETE
*
* Purpose: Decrement reference count on any objects referenced by
* message
*
* Note: The actual name of this routine can be different in each source
* file that this header file is included in, and must be defined
* prior to including this header file.
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* Friday, January 19, 2007
*
*-------------------------------------------------------------------------
*/
static H5_inline herr_t
H5O_SHARED_DELETE(H5F_t *f, hid_t dxpl_id, const void *_mesg, hbool_t adj_link)
{
const H5O_shared_t *sh_mesg = (const H5O_shared_t *)_mesg; /* Pointer to shared message portion of actual message */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_SHARED_DELETE)
#ifndef H5O_SHARED_TYPE
#error "Need to define H5O_SHARED_TYPE macro!"
#endif /* H5O_SHARED_TYPE */
#ifndef H5O_SHARED_DELETE
#error "Need to define H5O_SHARED_DELETE macro!"
#endif /* H5O_SHARED_DELETE */
/* Check for shared message */
if(H5O_IS_SHARED(sh_mesg->flags)) {
/* Decrement the reference count on the shared message/object */
if(H5O_shared_delete_new(f, dxpl_id, sh_mesg, adj_link) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTDEC, FAIL, "unable to decrement ref count for shared message")
} /* end if */
#ifdef H5O_SHARED_DELETE_REAL
else {
/* Decrement the reference count on the native message directly */
if(H5O_SHARED_DELETE_REAL(f, dxpl_id, _mesg, adj_link) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTDEC, FAIL, "unable to decrement ref count for native message")
} /* end else */
#endif /* H5O_SHARED_DELETE_REAL */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_SHARED_DELETE() */
/*-------------------------------------------------------------------------
* Function: H5O_SHARED_LINK
*
* Purpose: Increment reference count on any objects referenced by
* message
*
* Note: The actual name of this routine can be different in each source
* file that this header file is included in, and must be defined
* prior to including this header file.
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* Friday, January 19, 2007
*
*-------------------------------------------------------------------------
*/
static H5_inline herr_t
H5O_SHARED_LINK(H5F_t *f, hid_t dxpl_id, const void *_mesg)
{
const H5O_shared_t *sh_mesg = (const H5O_shared_t *)_mesg; /* Pointer to shared message portion of actual message */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_SHARED_LINK)
#ifndef H5O_SHARED_TYPE
#error "Need to define H5O_SHARED_TYPE macro!"
#endif /* H5O_SHARED_TYPE */
#ifndef H5O_SHARED_LINK
#error "Need to define H5O_SHARED_LINK macro!"
#endif /* H5O_SHARED_LINK */
/* Check for shared message */
if(H5O_IS_SHARED(sh_mesg->flags)) {
/* Increment the reference count on the shared message/object */
if(H5O_shared_link_new(f, dxpl_id, sh_mesg) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTINC, FAIL, "unable to increment ref count for shared message")
} /* end if */
#ifdef H5O_SHARED_LINK_REAL
else {
/* Increment the reference count on the native message directly */
if(H5O_SHARED_LINK_REAL(f, dxpl_id, _mesg) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTINC, FAIL, "unable to increment ref count for native message")
} /* end else */
#endif /* H5O_SHARED_LINK_REAL */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_SHARED_LINK() */
/*-------------------------------------------------------------------------
* Function: H5O_SHARED_COPY_FILE
*
* Purpose: Copies a message from _SRC to _DEST in file
*
* Note: The actual name of this routine can be different in each source
* file that this header file is included in, and must be defined
* prior to including this header file.
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* Friday, January 19, 2007
*
*-------------------------------------------------------------------------
*/
static H5_inline void *
H5O_SHARED_COPY_FILE(H5F_t *file_src, const H5O_msg_class_t *mesg_type,
void *_native_src, H5F_t *file_dst, hid_t dxpl_id, H5O_copy_t *cpy_info,
void *udata)
{
void *dst_mesg = NULL; /* Destination message */
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5O_SHARED_COPY_FILE)
#ifndef H5O_SHARED_TYPE
#error "Need to define H5O_SHARED_TYPE macro!"
#endif /* H5O_SHARED_TYPE */
#ifndef H5O_SHARED_COPY_FILE
#error "Need to define H5O_SHARED_COPY_FILE macro!"
#endif /* H5O_SHARED_COPY_FILE */
#ifdef H5O_SHARED_COPY_FILE_REAL
/* Call native message's copy file callback to copy the message */
if(NULL == (dst_mesg = H5O_SHARED_COPY_FILE_REAL(file_src, H5O_SHARED_TYPE, _native_src, file_dst, dxpl_id, cpy_info, udata)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTCOPY, NULL, "unable to copy native message to another file")
#else /* H5O_SHARED_COPY_FILE_REAL */
/* No copy file callback defined, just copy the message itself */
if(NULL == (dst_mesg = (H5O_SHARED_TYPE->copy)(_native_src, NULL)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTCOPY, NULL, "unable to copy native message")
#endif /* H5O_SHARED_COPY_FILE_REAL */
/* Reset shared message info for new message */
HDmemset(dst_mesg, 0, sizeof(H5O_shared_t));
/* Handle sharing destination message */
if(H5O_shared_copy_file_new(file_src, file_dst, dxpl_id, H5O_SHARED_TYPE,
_native_src, dst_mesg, cpy_info, udata) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_WRITEERROR, NULL, "unable to determine if message should be shared")
/* Set return value */
ret_value = dst_mesg;
done:
if(!ret_value)
if(dst_mesg)
H5O_msg_free(H5O_SHARED_TYPE->id, dst_mesg);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_SHARED_COPY_FILE() */
#endif /* H5Oshared_H */
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