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100 lines
4 KiB
C
100 lines
4 KiB
C
/* table.h: Interface for a dictionary
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* Copyright (c) 2001 Ravenbrook Limited. See end of file for license.
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*
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* $Id$
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*/
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#ifndef table_h
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#define table_h
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#include "mpmtypes.h"
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#include <stddef.h>
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typedef struct TableStruct *Table;
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#define TableSig ((Sig)0x5192AB13) /* SIGnature TABLE */
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typedef void *(*TableAllocMethod)(void *closure, size_t size);
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typedef void (*TableFreeMethod)(void *closure, void *p, size_t size);
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typedef struct TableEntryStruct {
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Word key;
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void *value;
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} TableEntryStruct, *TableEntry;
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typedef struct TableStruct {
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Sig sig; /* <design/sig/> */
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Count length; /* Number of slots in the array */
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Count count; /* Active entries in the table */
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TableEntry array; /* Array of table slots */
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TableAllocMethod alloc;
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TableFreeMethod free;
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void *allocClosure;
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Word unusedKey; /* key marking unused (undefined) entries */
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Word deletedKey; /* key marking deleted entries */
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} TableStruct;
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extern Res TableCreate(Table *tableReturn,
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Count length,
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TableAllocMethod tableAlloc,
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TableFreeMethod tableFree,
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void *allocClosure,
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Word unusedKey,
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Word deletedKey);
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extern void TableDestroy(Table table);
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extern Bool TableCheck(Table table);
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extern Res TableDefine(Table table, Word key, void *value);
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extern Res TableRedefine(Table table, Word key, void *value);
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extern Bool TableLookup(void **valueReturn, Table table, Word key);
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extern Res TableRemove(Table table, Word key);
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extern Count TableCount(Table table);
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extern void TableMap(Table table,
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void(*fun)(void *closure, Word key, void *value),
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void *closure);
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extern Res TableGrow(Table table, Count extraCapacity);
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#endif /* table_h */
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/* C. COPYRIGHT AND LICENSE
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*
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* Copyright (C) 2001-2002 Ravenbrook Limited <http://www.ravenbrook.com/>.
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* All rights reserved. This is an open source license. Contact
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* Ravenbrook for commercial licensing options.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Redistributions in any form must be accompanied by information on how
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* to obtain complete source code for this software and any accompanying
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* software that uses this software. The source code must either be
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* included in the distribution or be available for no more than the cost
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* of distribution plus a nominal fee, and must be freely redistributable
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* under reasonable conditions. For an executable file, complete source
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* code means the source code for all modules it contains. It does not
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* include source code for modules or files that typically accompany the
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* major components of the operating system on which the executable file
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* runs.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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* PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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