hprof_blocks.h

来自「一个小公司要求给写的很简单的任务管理系统。」· C头文件 代码 · 共 59 行

/*
 * @(#)hprof_blocks.h	1.4 05/11/17
 * 
 * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * -Redistribution of source code must retain the above copyright notice, this
 *  list of conditions and the following disclaimer.
 * 
 * -Redistribution in binary form must reproduce the above copyright notice, 
 *  this list of conditions and the following disclaimer in the documentation
 *  and/or other materials provided with the distribution.
 * 
 * Neither the name of Sun Microsystems, Inc. or the names of contributors may 
 * be used to endorse or promote products derived from this software without 
 * specific prior written permission.
 * 
 * This software is provided "AS IS," without a warranty of any kind. ALL 
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
 * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
 * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
 * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
 * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST 
 * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, 
 * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY 
 * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, 
 * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * 
 * You acknowledge that this software is not designed, licensed or intended
 * for use in the design, construction, operation or maintenance of any
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 */

#ifndef HPROF_BLOCKS_H
#define HPROF_BLOCKS_H

typedef struct BlockHeader {
    struct BlockHeader *next;
    int                 bytes_left;
    int                 next_pos;
} BlockHeader;

typedef struct Blocks {
    BlockHeader *first_block;   /* Pointer to first BlockHeader */
    BlockHeader *current_block; /* Pointer to current BlockHeader */
    int          alignment;     /* Data alignment, 1, 2, 4, 8, 16 */
    int          elem_size;     /* Size in bytes, ==1 means variable sizes */
    int          population;    /* Number of elements to allow for per Block */
} Blocks;

Blocks * blocks_init(int alignment, int elem_size, int population);
void *   blocks_alloc(Blocks *blocks, int nbytes);
void     blocks_term(Blocks *blocks);

#endif