mem.h

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/*************************************************************************
 * Copyright (c) 2011 AT&T Intellectual Property 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors: Details at https://graphviz.org
 *************************************************************************/
 
#pragma once
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <stddef.h>
 
#if !defined(__CYGWIN__) && defined(__GNUC__) && !defined(__MINGW32__)
#define INTERNAL __attribute__((visibility("hidden")))
#else
#define INTERNAL /* nothing */
#endif
 
    /* Support for freelists */
 
    typedef struct freelist {
        struct freenode *head;  /* List of free nodes */
        struct freeblock *blocklist;    /* List of malloced blocks */
        int nodesize;           /* Size of node */
    } Freelist;
 
INTERNAL void *getfree(Freelist *);
INTERNAL void freeinit(Freelist *, int);
INTERNAL void makefree(void *, Freelist *);
 
#undef INTERNAL
 
#ifdef __cplusplus
}
#endif