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Sprite 1984 - 1993
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Sprite 1984 - 1993.iso
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Db_Close.c
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C/C++ Source or Header
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1989-01-13
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2KB
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65 lines
/*
* Db_Close.c --
*
* Source code for the Db_Close procedure.
*
* Copyright 1988 Regents of the University of California
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies. The University of California
* makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without
* express or implied warranty.
*/
#ifndef lint
static char rcsid[] = "$Header: /sprite/src/lib/c/db/RCS/Db_Close.c,v 1.2 89/01/13 11:43:51 douglis Exp $ SPRITE (Berkeley)";
#endif not lint
#include <db.h>
#include "dbInt.h"
/*
*----------------------------------------------------------------------
*
* Db_Close --
*
* Unlock (if needed) and close the file referred to by the handle.
*
* Results:
* -1 indicates an error, in which case errno indicates more details.
* 0 indicates success.
*
* Side effects:
* Resets streamID to -1 and buffer to NULL to guard against use
* after Db_Close has been called.
*
*----------------------------------------------------------------------
*/
int
Db_Close(handlePtr)
Db_Handle *handlePtr;
{
register int status;
if (handlePtr->buffer != (char *) NULL) {
(void) free(handlePtr->buffer);
handlePtr->buffer = (char *) NULL;
}
#ifndef CLEAN
(void) free(handlePtr->fileName);
handlePtr->fileName = (char *) NULL;
#endif /* CLEAN */
if (handlePtr->lockWhen == DB_LOCK_OPEN) {
(void) flock(handlePtr->streamID, handlePtr->lockType | LOCK_UN);
}
status = close(handlePtr->streamID);
handlePtr->streamID = -1;
return(status);
}