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xmalloc.h

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#ifndef foomemoryhfoo
#define foomemoryhfoo

/* $Id: xmalloc.h 1426 2007-02-13 15:35:19Z ossman $ */

/***
  This file is part of PulseAudio.

  Copyright 2004-2006 Lennart Poettering

  PulseAudio is free software; you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published
  by the Free Software Foundation; either version 2 of the License,
  or (at your option) any later version.

  PulseAudio 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 Lesser General Public License
  along with PulseAudio; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  USA.
***/

#include <sys/types.h>
#include <stdlib.h>
#include <limits.h>
#include <assert.h>
#include <pulse/cdecl.h>

/** \file
 * Memory allocation functions.
 */

PA_C_DECL_BEGIN

/** Allocate the specified number of bytes, just like malloc() does. However, in case of OOM, terminate */
void* pa_xmalloc(size_t l);

/** Same as pa_xmalloc(), but initialize allocated memory to 0 */
void *pa_xmalloc0(size_t l);

/**  The combination of pa_xmalloc() and realloc() */
void *pa_xrealloc(void *ptr, size_t size);

/** Free allocated memory */
void pa_xfree(void *p);

/** Duplicate the specified string, allocating memory with pa_xmalloc() */
char *pa_xstrdup(const char *s);

/** Duplicate the specified string, but truncate after l characters */
char *pa_xstrndup(const char *s, size_t l);

/** Duplicate the specified memory block */
void* pa_xmemdup(const void *p, size_t l);

/** Internal helper for pa_xnew() */
00061 static inline void* pa_xnew_internal(unsigned n, size_t k) {
    assert(n < INT_MAX/k);
    return pa_xmalloc(n*k);
}

/** Allocate n new structures of the specified type. */
00067 #define pa_xnew(type, n) ((type*) pa_xnew_internal((n), sizeof(type)))

/** Internal helper for pa_xnew0() */
00070 static inline void* pa_xnew0_internal(unsigned n, size_t k) {
    assert(n < INT_MAX/k);
    return pa_xmalloc0(n*k);
}

/** Same as pa_xnew() but set the memory to zero */
00076 #define pa_xnew0(type, n) ((type*) pa_xnew0_internal((n), sizeof(type)))

PA_C_DECL_END

#endif

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