util.h

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/*= -*- c-basic-offset: 4; indent-tabs-mode: nil; -*-
 *
 * librsync -- library for network deltas
 *
 * Copyright (C) 1999, 2000, 2001 by Martin Pool <mbp@sourcefrog.net>
 * Copyright (C) 1999 by Andrew Tridgell <tridge@samba.org>
 *
 * This program 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 2.1 of
 * the License, or (at your option) any later version.
 *
 * This program 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
/** \file util.h
 * Misc utility functions used by librsync. */
#ifndef UTIL_H
#  define UTIL_H
 
#  include <stddef.h>
#  include "librsync.h"
 
void *rs_alloc(size_t size, char const *name);
void *rs_realloc(void *ptr, size_t size, char const *name);
void *rs_alloc_struct0(size_t size, char const *name);
 
void rs_bzero(void *buf, size_t size);
 
int rs_long_ln2(rs_long_t v);
int rs_long_sqrt(rs_long_t v);
 
/** Allocate and zero-fill an instance of TYPE. */
#  define rs_alloc_struct(type)                         \
        ((type *) rs_alloc_struct0(sizeof(type), #type))
 
#  ifdef __GNUC__
#    define UNUSED(x) x __attribute__((unused))
#  elif defined(__LCLINT__) || defined(S_SPLINT_S)
#    define UNUSED(x) /*@unused@*/ x
#  else                         /* !__GNUC__ && !__LCLINT__ */
#    define UNUSED(x) x
#  endif                        /* !__GNUC__ && !__LCLINT__ */
 
#endif                          /* !UTIL_H */