mirror of
git://git.sv.gnu.org/emacs.git
synced 2025-12-24 14:30:43 -08:00
e854cd8e1d
Making some new files consistent with changes from that branch. Deleting some new Global Graphics confidential files. Copied from Perforce Change: 30256 ServerID: perforce.ravenbrook.com
91 lines
3.5 KiB
C
91 lines
3.5 KiB
C
/* poolmfs.h: MANUAL FIXED SMALL UNIT POOL
|
|
*
|
|
* $Id$
|
|
*
|
|
* Copyright (c) 2001 Ravenbrook Limited. See end of file for license.
|
|
*
|
|
* The MFS pool is used to manage small fixed-size chunks of memory. It
|
|
* stores control structures in the memory it manages, rather than to one
|
|
* side. It therefore achieves better locality for small objects, but
|
|
* wastes memory for large objects. It should not be used unless you are
|
|
* packing a reasonable number of objects on to a page.
|
|
*
|
|
* Create and Init take the following arguments:
|
|
*
|
|
* Size extendBy
|
|
*
|
|
* extendBy is the default number of bytes reserved by the pool at a time.
|
|
* A large size will make allocation cheaper but have a higher resource
|
|
* overhead. A typical value might be 65536. See note 2.
|
|
*
|
|
* Size unitSize
|
|
*
|
|
* unitSize is the size in bytes of the objects you with to allocate. It
|
|
* must be larger than the minimum unit size returned by GetInfo, and not
|
|
* larger than extendBy.
|
|
*/
|
|
|
|
#ifndef poolmfs_h
|
|
#define poolmfs_h
|
|
|
|
#include "mpm.h"
|
|
|
|
typedef struct MFSStruct *MFS;
|
|
|
|
extern PoolClass PoolClassMFS(void);
|
|
|
|
extern Bool MFSCheck(MFS mfs);
|
|
extern Pool (MFSPool)(MFS mfs);
|
|
|
|
|
|
typedef const struct MFSInfoStruct *MFSInfo;
|
|
|
|
struct MFSInfoStruct {
|
|
Size unitSizeMin; /* minimum unit size */
|
|
};
|
|
|
|
extern MFSInfo MFSGetInfo(void);
|
|
|
|
#endif /* poolmfs_h */
|
|
|
|
|
|
/* C. COPYRIGHT AND LICENSE
|
|
*
|
|
* Copyright (C) 2001-2002 Ravenbrook Limited <http://www.ravenbrook.com/>.
|
|
* All rights reserved. This is an open source license. Contact
|
|
* Ravenbrook for commercial licensing options.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Redistributions in any form must be accompanied by information on how
|
|
* to obtain complete source code for this software and any accompanying
|
|
* software that uses this software. The source code must either be
|
|
* included in the distribution or be available for no more than the cost
|
|
* of distribution plus a nominal fee, and must be freely redistributable
|
|
* under reasonable conditions. For an executable file, complete source
|
|
* code means the source code for all modules it contains. It does not
|
|
* include source code for modules or files that typically accompany the
|
|
* major components of the operating system on which the executable file
|
|
* runs.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
|
|
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
|
|
* PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
|
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|