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/*
* Copyright (C) 2003-2013 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program 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.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "PcmBuffer.hxx"
#include "poison.h"
/**
* Align the specified size to the next 8k boundary.
*/
constexpr
static size_t
align_8k(size_t size)
{
return ((size - 1) | 0x1fff) + 1;
}
void *
PcmBuffer::Get(size_t new_size)
{
if (new_size == 0)
/* never return NULL, because NULL would be assumed to
be an error condition */
new_size = 1;
if (size < new_size) {
/* free the old buffer */
g_free(buffer);
size = align_8k(new_size);
buffer = g_malloc(size);
} else {
/* discard old buffer contents */
poison_undefined(buffer, size);
}
assert(size >= new_size);
return buffer;
}
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