walloc.h

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/*
 * $Id: walloc.h 13881 2007-06-18 23:48:50Z cbiere $
 *
 * Copyright (c) 2002-2003, Raphael Manfredi
 *
 *----------------------------------------------------------------------
 * This file is part of gtk-gnutella.
 *
 *  gtk-gnutella is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  gtk-gnutella is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with gtk-gnutella; if not, write to the Free Software
 *  Foundation, Inc.:
 *      59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *----------------------------------------------------------------------
 */

#ifndef _walloc_h_
#define _walloc_h_

#include "common.h"
#include "malloc.h"

/*
 * Under REMAP_ZALLOC control, those routines are remapped to malloc/free.
 * Under TRACK_ZALLOC, we keep track of the allocation places.
 */

#if defined(USE_DMALLOC) && !defined(REMAP_ZALLOC)
#define REMAP_ZALLOC
#endif

#ifdef REMAP_ZALLOC

#ifdef TRACK_ZALLOC
#error "TRACK_ZALLOC and REMAP_ZALLOC are mutually exclusive"
#endif

#if 0 && GLIB_CHECK_VERSION(2, 10, 0)
static inline gpointer walloc(size_t size) { return g_slice_alloc(size); }
static inline gpointer walloc0(size_t size) { return g_slice_alloc0(size); }
static inline void wfree(gpointer p, size_t size) { g_slice_free1(size, p); }

static inline gpointer
wcopy(gconstpointer p, size_t size)
{
    gpointer x = g_slice_alloc(size);
    memcpy(x, p, size);
    return x;
}

static inline gpointer
wrealloc(gpointer p, size_t old_size, size_t new_size)
{
    gpointer x = g_slice_alloc(new_size);
    memcpy(x, p, MIN(new_size, old_size));
    g_slice_free1(old_size, p);
    return x;
}

#else   /* GLib < 2.10 */
#define walloc(s)           g_malloc(s)
#define walloc0(s)          g_malloc0(s)

static inline gpointer
wcopy(gconstpointer p, size_t size)
{
    return g_memdup(p, size);
}

static inline void
wfree(gpointer p, size_t size)
{
    (void) size;
    g_free(p);
}

static inline gpointer
wrealloc(gpointer p, size_t o, size_t n)
{
    (void) o;
    return g_realloc(p, n);
}
#endif  /* GLib >= 2.10 */

#else   /* !REMAP_ZALLOC */

gpointer walloc(size_t size) WARN_UNUSED_RESULT G_GNUC_MALLOC;
gpointer walloc0(size_t size) WARN_UNUSED_RESULT G_GNUC_MALLOC;
void wfree(gpointer ptr, size_t size);
gpointer wrealloc(gpointer old, size_t old_size, size_t new_size)
            WARN_UNUSED_RESULT G_GNUC_MALLOC;
static inline gpointer wcopy(gconstpointer ptr, size_t size)
            WARN_UNUSED_RESULT G_GNUC_MALLOC;

static inline gpointer
wcopy(gconstpointer ptr, size_t size)
{
    gpointer cp = walloc(size);
    memcpy(cp, ptr, size);
    return cp;
}

#endif  /* REMAP_ZALLOC */

#ifdef TRACK_ZALLOC

#define walloc(s)           walloc_track(s, __FILE__, __LINE__)
#define wcopy(p,s)          wcopy_track(p, s, __FILE__, __LINE__)
#define walloc0(s)          walloc0_track(s, __FILE__, __LINE__)
#define wrealloc(p,o,n)     wrealloc_track(p, o, n, __FILE__, __LINE__)

gpointer walloc_track(size_t size, gchar *file, gint line);
gpointer walloc0_track(size_t size, gchar *file, gint line);
gpointer wcopy_track(gconstpointer, size_t size, gchar *file, gint line);
gpointer wrealloc_track(gpointer old, size_t old_size, size_t new_size,
    gchar *file, gint line);

#endif  /* TRACK_ZALLOC */

void wdestroy(void);

#define WFREE_NULL(p,size)  \
G_STMT_START {              \
    if (p) {                \
        wfree(p,size);      \
        p = NULL;           \
    }                       \
} G_STMT_END

#endif /* _walloc_h_ */
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