/* lo.h: LEAF OBJECT POOL CLASS INTERFACE * * $Id$ * * Copyright (c) 2001 Ravenbrook Limited. See end of file for license. * * The Leaf Object PoolClass is an automatically managed (ie garbage * collected) pool for managing "leaf" objects. Leaf objects are * objects that have no references or no references that need tracing * (ie the objects they refer too are non-moving and are manually * managed). * * This Class has the following features: * * Approximately 6% (asymptotically) space overhead on managed objects. * * Automatically reclaims memory used by objects no longer reachable * from the roots. * * Non-moving. References to objects in this pool will never change * due to "fixing". * * Buffers will always "commit". When allocating using a buffer, * commit will never fail. * * The following caveat applies: * * Space and time performance will degrade when fragmentation * increases. */ #ifndef lo_h #define lo_h #include "mpm.h" typedef struct LOStruct *LO; extern PoolClass PoolClassLO(void); #endif /* lo_h */ /* C. COPYRIGHT AND LICENSE * * Copyright (C) 2001-2002 Ravenbrook Limited . * 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. */