Inside Macintosh: Files /

Chapter 2 - File Manager / File Manager Reference

Low-Level File Access Routines / Updating Files

PBFlushFile

You can use the PBFlushFile function to write the contents of a file's access path buffer.

FUNCTION PBFlushFile (paramBlock: ParmBlkPtr; async: Boolean): 
                        OSErr;

paramBlock

A pointer to a basic FIle Manager parameter block.

async

A Boolean value that specifies asynchronous (TRUE) or synchronous (FALSE) execution.

-->	ioCompletion	ProcPtr	A pointer to a completion routine.
<--	ioResult	OSErr	The result code of the function.
-->	ioRefNum	Integer	A file reference number.

DESCRIPTION

The PBFlushFile function writes the contents of the access path buffer indicated by ioRefNum to the volume and then updates the file's entry in the volume catalog.

WARNING

Some information stored on the volume won't be correct until PBFlushVol is called.

ASSEMBLY-LANGUAGE INFORMATION

The trap macro for PBFlushFile is _FlushFile.

RESULT CODES

noErr	0	No error
nsvErr	-35	Volume not found
ioErr	-36	I/O error
fnOpnErr	-38	File not open
fnfErr	-43	File not found
rfNumErr	-51	Bad reference number
extFSErr	-58	External file system