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https://github.com/HDFGroup/hdf5.git
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Quincey Koziol
7a07c6cc13
Code cleanup, sorta
Description:
Added ifdef sections for "H5_USING_PURIFY" in various places in the code,
which are designed to reduce the spurious "uninitialized memory read" warnings
from purify which are actually OK. Note that this macro will have to be
turned on by adding it to the CFLAGS for the build - I didn't think it was
important enough to add a configure flag for.
Also, the changes in H5HG.c optimize the walks through the objects in a
heap to only look at the 'used' entries instead of all the 'allocated' entries.
Platforms tested:
Solaris 2.7 (arabica) w/purify
Not tested by h5committest
97 lines
3.7 KiB
C
97 lines
3.7 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the files COPYING and Copyright.html. COPYING can be found at the root *
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* of the source code distribution tree; Copyright.html can be found at the *
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* root level of an installed copy of the electronic HDF5 document set and *
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* is linked from the top-level documents page. It can also be found at *
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* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
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* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*
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* Programmer: Quincey Koziol <koziol@ncsa.uiuc.edu>
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* Wednesday, July 9, 2003
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*
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* Purpose: This file contains declarations which are visible
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* only within the H5HG package. Source files outside the
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* H5HG package should include H5HGprivate.h instead.
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*/
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#ifndef H5HG_PACKAGE
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#error "Do not include this file outside the H5HG package!"
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#endif
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#ifndef _H5HGpkg_H
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#define _H5HGpkg_H
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/* Get package's private header */
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#include "H5HGprivate.h"
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/* Other private headers needed by this file */
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/*****************************/
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/* Package Private Variables */
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/*****************************/
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/* The cache subclass */
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H5_DLLVAR const H5AC_class_t H5AC_GHEAP[1];
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/**************************/
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/* Package Private Macros */
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/**************************/
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/*
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* Pad all global heap messages to a multiple of eight bytes so we can load
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* the entire collection into memory and operate on it there. Eight should
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* be sufficient for machines that have alignment constraints because our
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* largest data type is eight bytes.
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*/
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#define H5HG_ALIGNMENT 8
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#define H5HG_ALIGN(X) (H5HG_ALIGNMENT*(((X)+H5HG_ALIGNMENT-1)/ \
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H5HG_ALIGNMENT))
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#define H5HG_ISALIGNED(X) ((X)==H5HG_ALIGN(X))
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/*
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* The overhead associated with each object in the heap, always a multiple of
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* the alignment so that the stuff that follows the header is aligned.
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*/
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#define H5HG_SIZEOF_OBJHDR(f) \
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H5HG_ALIGN(2 + /*object id number */ \
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2 + /*reference count */ \
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4 + /*reserved */ \
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H5F_SIZEOF_SIZE(f)) /*object data size */
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/****************************/
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/* Package Private Typedefs */
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/****************************/
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typedef struct H5HG_obj_t {
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int nrefs; /*reference count */
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size_t size; /*total size of object */
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uint8_t *begin; /*ptr to object into heap->chunk*/
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} H5HG_obj_t;
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struct H5HG_heap_t {
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H5AC_info_t cache_info; /* Information for H5AC cache functions, _must_ be */
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/* first field in structure */
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haddr_t addr; /*collection address */
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size_t size; /*total size of collection */
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uint8_t *chunk; /*the collection, incl. header */
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size_t nalloc; /*numb object slots allocated */
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size_t nused; /*number of slots used */
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/* If this value is >65535 then all indices */
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/* have been used at some time and the */
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/* correct new index should be searched for */
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H5HG_obj_t *obj; /*array of object descriptions */
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};
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/******************************/
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/* Package Private Prototypes */
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/******************************/
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#endif
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