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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5HLint.c
* Oct 12 2008
* Quincey Koziol <koziol@hdfgroup.org>
*
* Purpose: Local heap internal routines.
*
*-------------------------------------------------------------------------
*/
/****************/
/* Module Setup */
/****************/
#include "H5HLmodule.h" /* This source code file is part of the H5HL module */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5FLprivate.h" /* Free lists */
#include "H5HLpkg.h" /* Local Heaps */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/* Declare a free list to manage the H5HL_t struct */
H5FL_DEFINE_STATIC(H5HL_t);
/*-------------------------------------------------------------------------
* Function: H5HL__new
*
* Purpose: Create a new local heap object
*
* Return: Success: non-NULL pointer to new local heap
* Failure: NULL
*
* Programmer: Quincey Koziol
* Jan 5 2010
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PKG, ERR,
H5HL_t *, NULL, NULL,
H5HL__new(size_t sizeof_size, size_t sizeof_addr, size_t prfx_size))
H5HL_t *heap = NULL; /* New local heap */
/* check arguments */
HDassert(sizeof_size > 0);
HDassert(sizeof_addr > 0);
HDassert(prfx_size > 0);
/* Allocate new local heap structure */
if(NULL == (heap = H5FL_CALLOC(H5HL_t)))
H5E_THROW(H5E_CANTALLOC, "memory allocation failed");
/* Initialize non-zero fields */
heap->sizeof_size = sizeof_size;
heap->sizeof_addr = sizeof_addr;
heap->prfx_size = prfx_size;
/* Set the return value */
ret_value = heap;
CATCH
if(!ret_value && heap != NULL)
if (NULL == (heap = H5FL_FREE(H5HL_t, heap)))
H5E_THROW(H5E_CANTFREE, "can't free heap memory");
END_FUNC(PKG) /* end H5HL__new() */
/*-------------------------------------------------------------------------
* Function: H5HL__inc_rc
*
* Purpose: Increment ref. count on heap
*
* Return: SUCCEED (Can't fail)
*
* Programmer: Quincey Koziol
* Oct 12 2008
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PKG, NOERR,
herr_t, SUCCEED, -,
H5HL__inc_rc(H5HL_t *heap))
/* check arguments */
HDassert(heap);
/* Increment heap's ref. count */
heap->rc++;
END_FUNC(PKG) /* end H5HL__inc_rc() */
/*-------------------------------------------------------------------------
* Function: H5HL__dec_rc
*
* Purpose: Decrement ref. count on heap
*
* Return: SUCCEED/FAIL
*
* Programmer: Quincey Koziol
* Oct 12 2008
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PKG, ERR,
herr_t, SUCCEED, FAIL,
H5HL__dec_rc(H5HL_t *heap))
/* check arguments */
HDassert(heap);
/* Decrement heap's ref. count */
heap->rc--;
CATCH
/* Check if we should destroy the heap */
if(heap->rc == 0 && FAIL == H5HL__dest(heap))
H5E_THROW(H5E_CANTFREE, "unable to destroy local heap");
END_FUNC(PKG) /* end H5HL__dec_rc() */
/*-------------------------------------------------------------------------
* Function: H5HL__dest
*
* Purpose: Destroys a heap in memory.
*
* Return: SUCCEED/FAIL
*
* Programmer: Quincey Koziol
* Jan 15 2003
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PKG, ERR,
herr_t, SUCCEED, FAIL,
H5HL__dest(H5HL_t *heap))
/* check arguments */
HDassert(heap);
/* Verify that node is unused */
HDassert(heap->prots == 0);
HDassert(heap->rc == 0);
HDassert(heap->prfx == NULL);
HDassert(heap->dblk == NULL);
CATCH
if(heap->dblk_image)
if(NULL != (heap->dblk_image = H5FL_BLK_FREE(lheap_chunk, heap->dblk_image)))
H5E_THROW(H5E_CANTFREE, "unable to free local heap data block image");
while(heap->freelist) {
H5HL_free_t *fl;
fl = heap->freelist;
heap->freelist = fl->next;
if(NULL != (fl = H5FL_FREE(H5HL_free_t, fl)))
H5E_THROW(H5E_CANTFREE, "unable to free local heap free list");
} /* end while */
if(NULL != (heap = H5FL_FREE(H5HL_t, heap)))
H5E_THROW(H5E_CANTFREE, "unable to free local heap");
END_FUNC(PKG) /* end H5HL__dest() */
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