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* Failure: The undefined address HADDR_UNDEF
*
* Programmer: Quincey Koziol
* Monday, December 30, 2013
*
*-------------------------------------------------------------------------
*/
haddr_t
H5F__alloc(H5F_t *f, H5F_mem_t type, hsize_t size, haddr_t *frag_addr, hsize_t *frag_size)
{
haddr_t ret_value = 0; /* Return value */
FUNC_ENTER_PACKAGE
/* check args */
HDassert(f);
HDassert(f->shared);
HDassert(f->shared->lf);
HDassert(type >= H5FD_MEM_DEFAULT && type < H5FD_MEM_NTYPES);
HDassert(size > 0);
/* Check whether the file can use temporary addresses */
if(f->shared->use_tmp_space) {
haddr_t eoa; /* Current EOA for the file */
/* Get the EOA for the file */
if(HADDR_UNDEF == (eoa = H5F_get_eoa(f, type)))
HGOTO_ERROR(H5E_FILE, H5E_CANTGET, HADDR_UNDEF, "Unable to get eoa")
/* Check for overlapping into file's temporary allocation space */
if(H5F_addr_gt((eoa + size), f->shared->tmp_addr))
HGOTO_ERROR(H5E_FILE, H5E_BADRANGE, HADDR_UNDEF, "'normal' file space allocation request will overlap into 'temporary' file space")
} /* end if */
/* Call the file driver 'alloc' routine */
ret_value = H5FD_alloc(f->shared->lf, type, f, size, frag_addr, frag_size);
if(!H5F_addr_defined(ret_value))
HGOTO_ERROR(H5E_FILE, H5E_CANTALLOC, HADDR_UNDEF, "file driver 'alloc' request failed")
/* Mark EOA dirty */
if(H5F_eoa_dirty(f) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, HADDR_UNDEF, "unable to mark EOA as dirty")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F__alloc() */
/*-------------------------------------------------------------------------
* Function: H5F__free
*
* Purpose: Wrapper for H5FD_free, to make certain EOA changes are
* reflected in superblock.
*
* Note: When the metadata cache routines are updated to allow
* marking an entry dirty without a H5F_t*, this routine should
* be changed to take a H5F_super_t* directly.
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* Monday, December 30, 2013
*
*-------------------------------------------------------------------------
*/
herr_t
H5F__free(H5F_t *f, H5FD_mem_t type, haddr_t addr, hsize_t size)
{
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_PACKAGE
/* Check args */
HDassert(f);
HDassert(f->shared);
HDassert(f->shared->lf);
HDassert(type >= H5FD_MEM_DEFAULT && type < H5FD_MEM_NTYPES);
HDassert(size > 0);
/* Call the file driver 'free' routine */
if(H5FD_free(f->shared->lf, type, f, addr, size) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTFREE, FAIL, "file driver 'free' request failed")
/* Mark EOA dirty */
if(H5F_eoa_dirty(f) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTMARKDIRTY, FAIL, "unable to mark EOA as dirty")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F__free() */
/*-------------------------------------------------------------------------
* Function: H5F__try_extend
*
* Purpose: Extend a block at the end of the file, if possible.
*
* Note: When the metadata cache routines are updated to allow
* marking an entry dirty without a H5F_t*, this routine should
* be changed to take a H5F_super_t* directly.
*
* Return: Success: TRUE(1) - Block was extended
* FALSE(0) - Block could not be extended
* Failure: FAIL
*
* Programmer: Quincey Koziol
* Monday, 30 December, 2013
*
*-------------------------------------------------------------------------
*/
htri_t
H5F__try_extend(H5F_t *f, H5FD_mem_t type, haddr_t blk_end, hsize_t extra_requested)
{
htri_t ret_value = FALSE; /* Return value */
FUNC_ENTER_PACKAGE
/* check args */
HDassert(f);
HDassert(f->shared);
HDassert(f->shared->lf);
HDassert(type >= H5FD_MEM_DEFAULT && type < H5FD_MEM_NTYPES);
HDassert(extra_requested > 0);
/* Extend the object by extending the underlying file */
if((ret_value = H5FD_try_extend(f->shared->lf, type, f, blk_end, extra_requested)) < 0)
HGOTO_ERROR(H5E_FILE, H5E_CANTEXTEND, FAIL, "driver try extend request failed")
/* H5FD_try_extend() updates driver message and marks the superblock
* dirty, so no need to do it again here.
*/
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5F__try_extend() */
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