71 lines
1.5 KiB
C++
71 lines
1.5 KiB
C++
/*
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* Copyright (C) 2003-2013 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "Page.hxx"
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#include <glib.h>
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#include <new>
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#include <assert.h>
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#include <string.h>
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Page *
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Page::Create(size_t size)
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{
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void *p = g_malloc(sizeof(Page) + size -
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sizeof(Page::data));
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return ::new(p) Page(size);
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}
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Page *
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Page::Copy(const void *data, size_t size)
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{
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assert(data != nullptr);
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Page *page = Create(size);
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memcpy(page->data, data, size);
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return page;
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}
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Page *
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Page::Concat(const Page &a, const Page &b)
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{
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Page *page = Create(a.size + b.size);
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memcpy(page->data, a.data, a.size);
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memcpy(page->data + a.size, b.data, b.size);
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return page;
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}
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bool
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Page::Unref()
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{
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bool unused = ref.Decrement();
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if (unused) {
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this->Page::~Page();
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g_free(this);
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}
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return unused;
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}
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