- Now that we don't need it anymore, blast away
ompi/class/ompi_bitmap.[ch] -- may always be restored from svn again... This commit was SVN r20710.
Этот коммит содержится в:
Rainer Keller
родитель
84408f2fb7
Коммит
d68a8a1904
@ -1,249 +0,0 @@
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/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include <stdio.h>
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#include "ompi/constants.h"
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#include "ompi/class/ompi_bitmap.h"
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#define SIZE_OF_CHAR ((int) (sizeof(char) * 8))
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static void ompi_bitmap_construct(ompi_bitmap_t *bm);
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static void ompi_bitmap_destruct(ompi_bitmap_t *bm);
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OBJ_CLASS_INSTANCE(ompi_bitmap_t, opal_object_t,
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ompi_bitmap_construct, ompi_bitmap_destruct);
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static void
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ompi_bitmap_construct(ompi_bitmap_t *bm)
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{
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bm->array_size = 0;
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bm->bitmap = NULL;
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}
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static void
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ompi_bitmap_destruct(ompi_bitmap_t *bm)
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{
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if (NULL != bm->bitmap) {
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free(bm->bitmap);
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}
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}
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int
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ompi_bitmap_init(ompi_bitmap_t *bm, int size)
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{
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int actual_size;
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if ((size <= 0) || (size > OMPI_FORTRAN_HANDLE_MAX) || (NULL == bm)) {
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return OMPI_ERR_BAD_PARAM;
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}
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actual_size = size / SIZE_OF_CHAR;
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actual_size += (size % SIZE_OF_CHAR == 0) ? 0 : 1;
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bm->array_size = actual_size;
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bm->bitmap = (unsigned char *) malloc(actual_size);
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if (NULL == bm->bitmap) {
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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ompi_bitmap_clear_all_bits(bm);
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return OMPI_SUCCESS;
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}
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int
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ompi_bitmap_set_bit(ompi_bitmap_t *bm, int bit)
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{
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int index, offset, new_size, i;
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size_t new_size_large;
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if ((bit < 0) || (bit > OMPI_FORTRAN_HANDLE_MAX) || (NULL == bm)) {
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return OMPI_ERR_BAD_PARAM;
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}
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index = bit / SIZE_OF_CHAR;
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offset = bit % SIZE_OF_CHAR;
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if (index >= bm->array_size) {
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/* If we're already full, return "No vacancy!" */
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if (bm->array_size >= OMPI_FORTRAN_HANDLE_MAX) {
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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/* We need to allocate more space for the bitmap, since we are
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out of range. We don't throw any error here, because this is
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valid and we simply expand the bitmap */
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new_size_large = (index / bm->array_size + 1 ) * bm->array_size;
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/* Check to be sure that we still have less than
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OMPI_FORTRAN_HANDLE_MAX bits */
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if (new_size_large > OMPI_FORTRAN_HANDLE_MAX) {
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new_size_large = OMPI_FORTRAN_HANDLE_MAX;
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}
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/* Note that new_size is guaranteed to be <=
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OMPI_FORTRAN_HANDLE_MAX, which is guaranteed to fit in a
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[signed] int. */
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new_size = (int) new_size_large;
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/* New size is just a multiple of the original size to fit in
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the index. */
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bm->bitmap = (unsigned char *) realloc(bm->bitmap, (int) new_size);
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if (NULL == bm->bitmap) {
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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/* zero out the new elements */
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for (i = bm->array_size; i < new_size; ++i) {
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bm->bitmap[i] = 0;
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}
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/* Update the array_size */
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bm->array_size = new_size;
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}
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/* Now set the bit */
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bm->bitmap[index] |= (1 << offset);
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return OMPI_SUCCESS;
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}
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int
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ompi_bitmap_clear_bit(ompi_bitmap_t *bm, int bit)
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{
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int index, offset;
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if ((bit < 0) || NULL == bm || (bit >= (bm->array_size * SIZE_OF_CHAR))) {
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return OMPI_ERR_BAD_PARAM;
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}
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index = bit / SIZE_OF_CHAR;
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offset = bit % SIZE_OF_CHAR;
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if (index >= bm->array_size) {
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return OMPI_ERR_BAD_PARAM;
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}
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bm->bitmap[index] &= ~(1 << offset);
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return OMPI_SUCCESS;
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}
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int
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ompi_bitmap_is_set_bit(ompi_bitmap_t *bm, int bit)
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{
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int index, offset;
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if ((bit < 0) || NULL == bm || (bit >= (bm->array_size * SIZE_OF_CHAR))) {
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return OMPI_ERR_BAD_PARAM;
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}
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index = bit / SIZE_OF_CHAR;
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offset = bit % SIZE_OF_CHAR;
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if (index >= bm->array_size) {
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return OMPI_ERR_BAD_PARAM;
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}
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if (0 != (bm->bitmap[index] & (1 << offset))) {
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return (int) true;
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}
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return (int) false;
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}
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int
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ompi_bitmap_clear_all_bits(ompi_bitmap_t *bm)
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{
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if (NULL == bm) {
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return OMPI_ERR_BAD_PARAM;
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}
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memset(bm->bitmap, 0, bm->array_size);
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return OMPI_SUCCESS;
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}
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int
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ompi_bitmap_set_all_bits(ompi_bitmap_t *bm)
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{
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int i;
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if (NULL == bm) {
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return OMPI_ERR_BAD_PARAM;
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}
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for (i = 0; i < bm->array_size; ++i) {
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bm->bitmap[i] = ~((char) 0);
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}
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return OMPI_SUCCESS;
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}
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int
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ompi_bitmap_find_and_set_first_unset_bit(ompi_bitmap_t *bm, int *position)
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{
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int i = 0;
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unsigned char temp;
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unsigned char all_ones = 0xff;
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if (NULL == bm) {
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return OMPI_ERR_BAD_PARAM;
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}
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/* Neglect all which don't have an unset bit */
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*position = 0;
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while((i < bm->array_size) && (bm->bitmap[i] == all_ones)) {
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++i;
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}
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if (i == bm->array_size) {
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/* increase the bitmap size then */
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*position = bm->array_size * SIZE_OF_CHAR;
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return ompi_bitmap_set_bit(bm, *position);
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}
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/* This one has an unset bit, find its bit number */
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temp = bm->bitmap[i];
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while (temp & 0x1) {
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++(*position);
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temp >>= 1;
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}
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/* Now set the bit number */
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bm->bitmap[i] |= (bm->bitmap[i] + 1);
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(*position) += i * SIZE_OF_CHAR;
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return OMPI_SUCCESS;
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}
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@ -1,161 +0,0 @@
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/* -*- Mode: C; c-basic-offset:4 ; -*- */
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/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2007 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*
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*/
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/** @file
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*
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* A bitmap implementation. The bits start off with 0, so this bitmap
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* has bits numbered as bit 0, bit 1, bit 2 and so on. This bitmap
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* has auto-expansion capabilities, that is once the size is set
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* during init, it can be automatically expanded by setting the bit
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* beyond the current size. But note, this is allowed just when the
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* bit is set -- so the valid functions are set_bit and
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* find_and_set_bit. Other functions like clear, if passed a bit
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* outside the initialized range will result in an error.
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*
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* Since these bitmaps are only used to track fortran handles (which
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* MPI defines to be int's), it is assumed that we can never have more
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* than OMPI_FORTRAN_HANDLE_MAX (which is min(INT_MAX, fortran
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* INTEGER max)).
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*
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*/
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#ifndef OMPI_BITMAP_H
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#define OMPI_BITMAP_H
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#include "ompi_config.h"
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#include <string.h>
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#include "ompi/types.h"
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#include "opal/class/opal_object.h"
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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struct ompi_bitmap_t {
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opal_object_t super; /**< Subclass of opal_object_t */
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unsigned char *bitmap; /**< The actual bitmap array of characters */
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int array_size; /**< The actual array size that maintains the bitmap */
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};
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typedef struct ompi_bitmap_t ompi_bitmap_t;
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OMPI_DECLSPEC OBJ_CLASS_DECLARATION(ompi_bitmap_t);
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/**
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* Initializes the bitmap and sets its size. This must be called
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* before the bitmap can be actually used
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*
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* @param bitmap The input bitmap (IN)
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* @param size The initial size of the bitmap in terms of bits (IN)
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* @return OMPI error code or success
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*
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*/
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OMPI_DECLSPEC int ompi_bitmap_init (ompi_bitmap_t *bm, int size);
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/**
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* Set a bit of the bitmap. If the bit asked for is beyond the current
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* size of the bitmap, then the bitmap is extended to accomodate the
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* bit
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*
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* @param bitmap The input bitmap (IN)
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* @param bit The bit which is to be set (IN)
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* @return OMPI error code or success
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*
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*/
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OMPI_DECLSPEC int ompi_bitmap_set_bit(ompi_bitmap_t *bm, int bit);
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/**
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* Clear/unset a bit of the bitmap. If the bit is beyond the current
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* size of the bitmap, an error is returned
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*
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* @param bitmap The input bitmap (IN)
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* @param bit The bit which is to be cleared (IN)
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* @return OMPI error code if the bit is out of range, else success
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*
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*/
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OMPI_DECLSPEC int ompi_bitmap_clear_bit(ompi_bitmap_t *bm, int bit);
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/**
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* Find out if a bit is set in the bitmap
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*
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* @param bitmap The input bitmap (IN)
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* @param bit The bit which is to be checked (IN)
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* @return OMPI error code if the bit is out of range
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* 1 if the bit is set
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* 0 if the bit is not set
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*
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*/
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OMPI_DECLSPEC int ompi_bitmap_is_set_bit(ompi_bitmap_t *bm, int bit);
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/**
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* Find the first clear bit in the bitmap and set it
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*
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* @param bitmap The input bitmap (IN)
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* @param position Position of the first clear bit (OUT)
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* @return err OMPI_SUCCESS on success
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*/
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OMPI_DECLSPEC int ompi_bitmap_find_and_set_first_unset_bit(ompi_bitmap_t *bm,
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int *position);
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/**
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* Clear all bits in the bitmap
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*
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* @param bitmap The input bitmap (IN)
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* @return OMPI error code if bm is NULL
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*
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*/
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OMPI_DECLSPEC int ompi_bitmap_clear_all_bits(ompi_bitmap_t *bm);
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/**
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* Set all bits in the bitmap
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* @param bitmap The input bitmap (IN)
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* @return OMPI error code if bm is NULL
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*
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*/
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OMPI_DECLSPEC int ompi_bitmap_set_all_bits(ompi_bitmap_t *bm);
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/**
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* Gives the current size (number of bits) in the bitmap. This is the
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* legal (accessible) number of bits
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*
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* @param bitmap The input bitmap (IN)
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* @return OMPI error code if bm is NULL
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*
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*/
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static inline int ompi_bitmap_size(ompi_bitmap_t *bm)
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{
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return (NULL == bm) ? 0 : (bm->array_size * ((int) (sizeof(char) * 8)));
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}
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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#endif
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@ -31,9 +31,6 @@
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/*
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* @file Array of elements maintained by value.
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*
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* See ompi_bitmap.h for an explanation of why there is a split
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* between OMPI and ORTE for this generic class.
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*/
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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Загрузка…
Ссылка в новой задаче
Block a user