src/share/demo/jvmti/hprof/hprof_blocks.h

/*
 * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
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 *   - Redistributions in binary form must reproduce the above copyright
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 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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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