64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
#ifndef H_DBINDEX
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#define H_DBINDEX
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#ifdef HAVE_DB1_DB_H
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#include <db1/db.h>
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#else
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#ifdef HAVE_DB_185_H
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#include <db_185.h>
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#else
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#include <db.h>
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#endif
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#endif
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/* this will break if sizeof(int) != 4 */
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typedef /*@abstract@*/ struct {
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unsigned int recOffset;
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unsigned int fileNumber;
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} dbiIndexRecord;
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typedef /*@abstract@*/ struct {
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/*@only@*/ dbiIndexRecord * recs;
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int count;
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} dbiIndexSet;
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typedef /*@abstract@*/ struct {
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DB * db;
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const char * indexname;
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} dbiIndex;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*@only@*/ dbiIndex * dbiOpenIndex(const char * filename, int flags, int perms, DBTYPE type);
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void dbiCloseIndex( /*@only@*/ dbiIndex * dbi);
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void dbiSyncIndex(dbiIndex * dbi);
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int dbiSearchIndex(dbiIndex * dbi, const char * str, /*@out@*/ dbiIndexSet * set);
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/* -1 error, 0 success, 1 not found */
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int dbiUpdateIndex(dbiIndex * dbi, const char * str, dbiIndexSet * set);
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/* 0 on success */
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int dbiAppendIndexRecord( /*@out@*/ dbiIndexSet * set, dbiIndexRecord rec);
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/* 0 on success - should never fail */
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int dbiRemoveIndexRecord(dbiIndexSet * set, dbiIndexRecord rec);
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/* 0 on success - fails if rec is not found */
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dbiIndexSet dbiCreateIndexRecord(void);
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void dbiFreeIndexRecord(dbiIndexSet set);
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int dbiGetFirstKey(dbiIndex * dbi, /*@out@*/ const char ** key);
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extern unsigned int dbiIndexSetCount(dbiIndexSet set);
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/* structure return */
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extern dbiIndexRecord dbiReturnIndexRecordInstance(unsigned int recOffset, unsigned int fileNumber);
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extern unsigned int dbiIndexRecordOffset(dbiIndexSet set, int recno);
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extern unsigned int dbiIndexRecordFileNumber(dbiIndexSet set, int recno);
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#ifdef __cplusplus
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}
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#endif
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#endif /* H_DBINDEX */
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