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commoncpp
misc.h
Go to the documentation of this file.
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// Copyright (C) 2001-2005 Open Source Telecom Corporation.
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// Copyright (C) 2006-2014 David Sugar, Tycho Softworks.
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// Copyright (C) 2015 Cherokees of Idaho.
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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 Lesser General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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// As a special exception, you may use this file as part of a free software
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// library without restriction. Specifically, if other files instantiate
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// templates or use macros or inline functions from this file, or you compile
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// this file and link it with other files to produce an executable, this
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// file does not by itself cause the resulting executable to be covered by
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// the GNU General Public License. This exception does not however
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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//
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// This exception applies only to the code released under the name GNU
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// Common C++. If you copy code from other releases into a copy of GNU
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// Common C++, as the General Public License permits, the exception does
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// not apply to the code that you add in this way. To avoid misleading
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// anyone as to the status of such modified files, you must delete
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// this exception notice from them.
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//
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// If you write modifications of your own for GNU Common C++, it is your choice
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// whether to permit this exception to apply to your modifications.
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// If you do not wish that, delete this exception notice.
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//
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#ifndef COMMONCPP_MISC_H_
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#define COMMONCPP_MISC_H_
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#ifndef COMMONCPP_CONFIG_H_
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#include <commoncpp/config.h>
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#endif
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#define KEYDATA_INDEX_SIZE 97
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#define KEYDATA_PAGER_SIZE 512
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#if defined(PATH_MAX)
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#if PATH_MAX > 512
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#define KEYDATA_PATH_SIZE 512
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#else
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#define KEYDATA_PATH_SIZE PATH_MAX
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#endif
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#else
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#define KEYDATA_PATH_SIZE 256
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#endif
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namespace
ost {
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class
__EXPORT MemPager :
protected
ucommon::memalloc
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{
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private
:
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__DELETE_COPY(MemPager);
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public
:
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inline
MemPager(
size_t
pagesize = 4096) : ucommon::memalloc(pagesize) {}
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inline
void
*alloc(
size_t
size) {
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return
_alloc(size);
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}
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char
*alloc(
const
char
*str);
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inline
char
*first(
const
char
*str) {
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return
alloc(str);
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}
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inline
void
*first(
size_t
size) {
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return
_alloc(size);
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}
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inline
int
getPages(
void
)
const
{
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return
pages();
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}
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inline
void
purge(
void
) {
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memalloc::purge();
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}
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};
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class
__EXPORT
SharedMemPager
:
public
MemPager,
public
Mutex
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{
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private
:
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__DELETE_COPY(
SharedMemPager
);
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protected
:
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SharedMemPager
(
size_t
pagesize = 4096);
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void
purge(
void
);
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void
* alloc(
size_t
size);
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inline
void
*first(
size_t
size) {
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return
alloc(size);
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}
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};
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class
__EXPORT
Assoc
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{
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private
:
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struct
entry {
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const
char
*id;
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entry *next;
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void
*data;
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};
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entry *entries[KEYDATA_INDEX_SIZE];
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__DELETE_COPY(
Assoc
);
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protected
:
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Assoc
();
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virtual
~
Assoc
();
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void
clear(
void
);
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virtual
void
*getMemory(
size_t
size) = 0;
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public
:
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void
*getPointer(
const
char
*
id
)
const
;
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void
setPointer(
const
char
*
id
,
void
*data);
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};
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}
// namespace ost
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#endif
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