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- /*
- (C) 1995-96 AROS - The Amiga Replacement OS
- $Id: close.c,v 1.4 1996/08/13 13:52:45 digulla Exp $
- $Log: close.c,v $
- Revision 1.4 1996/08/13 13:52:45 digulla
- Replaced <dos/dosextens.h> by "dos_intern.h" or added "dos_intern.h"
- Replaced __AROS_LA by __AROS_LHA
-
- Revision 1.3 1996/08/12 14:17:34 digulla
- Added alias UnLock Close
-
- Revision 1.2 1996/08/01 17:40:48 digulla
- Added standard header for all files
-
- Desc:
- Lang: english
- */
- #include <clib/exec_protos.h>
- #include <dos/dosextens.h>
- #include <dos/filesystem.h>
- #include <clib/dos_protos.h>
- #include "dos_intern.h"
-
- /*****************************************************************************
-
- NAME */
- #include <clib/dos_protos.h>
-
- __AROS_LH1(BOOL, Close,
-
- /* SYNOPSIS */
- __AROS_LHA(BPTR, file, D1),
-
- /* LOCATION */
- struct DosLibrary *, DOSBase, 6, Dos)
-
- /* FUNCTION
- Close a filehandle opened with Open(). If the file was used
- with buffered I/O the final write may fail and thus Close()
- return an error. The file is closed in any case.
-
- INPUTS
- file - filehandle
-
- RESULT
- 0 if there was an error. !=0 on success.
-
- NOTES
- This function is identical to Lock().
-
- EXAMPLE
-
- BUGS
-
- SEE ALSO
-
- INTERNALS
-
- HISTORY
- 29-10-95 digulla automatically created from
- dos_lib.fd and clib/dos_protos.h
-
- *****************************************************************************/
-
- /*****************************************************************************
-
- NAME
- #include <clib/dos_protos.h>
-
- __AROS_LH1(BOOL, UnLock,
-
- SYNOPSIS
- __AROS_LHA(BPTR, lock, D1),
-
- LOCATION
- struct DosLibrary *, DOSBase, 15, Dos)
-
- FUNCTION
- Free a lock created with Lock().
-
- INPUTS
- lock - The lock to free
-
- RESULT
-
- NOTES
- This function is identical to Close() - see there.
-
- EXAMPLE
-
- BUGS
-
- SEE ALSO
-
- INTERNALS
-
- HISTORY
- 29-10-95 digulla automatically created from
- dos_lib.fd and clib/dos_protos.h
-
- *****************************************************************************/
- /*AROS alias UnLock Close */
- {
- __AROS_FUNC_INIT
- __AROS_BASE_EXT_DECL(struct DosLibrary *,DOSBase)
-
- /* Get pointer to filehandle */
- struct FileHandle *fh=(struct FileHandle *)BADDR(file);
-
- /* Get pointer to process structure */
- struct Process *me=(struct Process *)FindTask(NULL);
-
- /* Get pointer to I/O request. Use stackspace for now. */
- struct IOFileSys io,*iofs=&io;
-
- /* The returncode defaults to OK. */
- BOOL ret=1;
-
- /* 0 handles are OK */
- if(!file)
- return ret;
-
- /* If the filehandle has a pending write on it Flush() the buffer. */
- if(fh->fh_Flags&FHF_WRITE)
- ret=Flush(file);
-
- /* Prepare I/O request. */
- iofs->IOFS.io_Message.mn_Node.ln_Type=NT_REPLYMSG;
- iofs->IOFS.io_Message.mn_ReplyPort =&me->pr_MsgPort;
- iofs->IOFS.io_Message.mn_Length =sizeof(struct IOFileSys);
- iofs->IOFS.io_Device =fh->fh_Device;
- iofs->IOFS.io_Unit =fh->fh_Unit;
- iofs->IOFS.io_Command=FSA_CLOSE;
- iofs->IOFS.io_Flags =0;
-
- /* Send the request. No errors possible. */
- (void)DoIO(&iofs->IOFS);
-
- FreeDosObject(DOS_FILEHANDLE,fh);
-
- /* All done. */
- return ret;
- __AROS_FUNC_EXIT
- } /* Close */
-