mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-08 04:27:37 +00:00
174 lines
6.2 KiB
C
174 lines
6.2 KiB
C
/*
|
|
** IterateDirectory: File Manager directory iterator routines.
|
|
**
|
|
** by Jim Luther
|
|
**
|
|
** File: IterateDirectory.h
|
|
**
|
|
** Copyright © 1995-1996 Jim Luther
|
|
** All rights reserved.
|
|
**
|
|
** You may incorporate this sample code into your applications without
|
|
** restriction, though the sample code has been provided "AS IS" and the
|
|
** responsibility for its operation is 100% yours.
|
|
**
|
|
** IterateDirectory is designed to drop into the MoreFiles sample code
|
|
** library I wrote while in Apple Developer Technical Support
|
|
*/
|
|
|
|
#ifndef __ITERATEDIRECTORY__
|
|
#define __ITERATEDIRECTORY__
|
|
|
|
#include <Types.h>
|
|
#include <Files.h>
|
|
|
|
#include "PascalElim.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/*****************************************************************************/
|
|
|
|
typedef pascal void (*IterateFilterProcPtr) (const CInfoPBRec * const cpbPtr,
|
|
Boolean *quitFlag,
|
|
void *yourDataPtr);
|
|
/* ¦ Prototype for the IterateFilterProc function IterateDirectory calls.
|
|
This is the prototype for the IterateFilterProc function which is
|
|
called once for each file and directory found by IterateDirectory. The
|
|
IterateFilterProc gets a pointer to the CInfoPBRec that IterateDirectory
|
|
used to call PBGetCatInfo. The IterateFilterProc can use the read-only
|
|
data in the CInfoPBRec for whatever it wants.
|
|
|
|
If the IterateFilterProc wants to stop IterateDirectory, it can set
|
|
quitFlag to true (quitFlag will be passed to the IterateFilterProc
|
|
false).
|
|
|
|
The yourDataPtr parameter can point to whatever data structure you might
|
|
want to access from within the IterateFilterProc.
|
|
|
|
cpbPtr input: A pointer to the CInfoPBRec that IterateDirectory
|
|
used to call PBGetCatInfo. The CInfoPBRec and the
|
|
data it points to must not be changed by your
|
|
IterateFilterProc.
|
|
quitFlag output: Your IterateFilterProc can set quitFlag to true
|
|
if it wants to stop IterateDirectory.
|
|
yourDataPtr input: A pointer to whatever data structure you might
|
|
want to access from within the IterateFilterProc.
|
|
|
|
__________
|
|
|
|
Also see: IterateDirectory, FSpIterateDirectory
|
|
*/
|
|
|
|
#define CallIterateFilterProc(userRoutine, cpbPtr, quitFlag, yourDataPtr) \
|
|
(*(userRoutine))((cpbPtr), (quitFlag), (yourDataPtr))
|
|
|
|
/*****************************************************************************/
|
|
|
|
pascal OSErr IterateDirectory(short vRefNum,
|
|
long dirID,
|
|
StringPtr name,
|
|
unsigned short maxLevels,
|
|
IterateFilterProcPtr iterateFilter,
|
|
void *yourDataPtr);
|
|
/* ¦ Iterate (scan) through a directory's content.
|
|
The IterateDirectory function performs a recursive iteration (scan) of
|
|
the specified directory and calls your IterateFilterProc function once
|
|
for each file and directory found.
|
|
|
|
The maxLevels parameter lets you control how deep the recursion goes.
|
|
If maxLevels is 1, IterateDirectory only scans the specified directory;
|
|
if maxLevels is 2, IterateDirectory scans the specified directory and
|
|
one subdirectory below the specified directory; etc. Set maxLevels to
|
|
zero to scan all levels.
|
|
|
|
The yourDataPtr parameter can point to whatever data structure you might
|
|
want to access from within the IterateFilterProc.
|
|
|
|
vRefNum input: Volume specification.
|
|
dirID input: Directory ID.
|
|
name input: Pointer to object name, or nil when dirID
|
|
specifies a directory that's the object.
|
|
maxLevels input: Maximum number of directory levels to scan or
|
|
zero to scan all directory levels.
|
|
iterateFilter input: A pointer to the routine you want called once
|
|
for each file and directory found by
|
|
IterateDirectory.
|
|
yourDataPtr input: A pointer to whatever data structure you might
|
|
want to access from within the IterateFilterProc.
|
|
|
|
Result Codes
|
|
noErr 0 No error
|
|
nsvErr -35 No such volume
|
|
ioErr -36 I/O error
|
|
bdNamErr -37 Bad filename
|
|
fnfErr -43 File not found
|
|
paramErr -50 No default volume or iterateFilter was NULL
|
|
dirNFErr -120 Directory not found or incomplete pathname
|
|
or a file was passed instead of a directory
|
|
afpAccessDenied -5000 User does not have the correct access
|
|
afpObjectTypeErr -5025 Directory not found or incomplete pathname
|
|
|
|
__________
|
|
|
|
See also: IterateFilterProcPtr, FSpIterateDirectory
|
|
*/
|
|
|
|
/*****************************************************************************/
|
|
|
|
pascal OSErr FSpIterateDirectory(const FSSpec *spec,
|
|
unsigned short maxLevels,
|
|
IterateFilterProcPtr iterateFilter,
|
|
void *yourDataPtr);
|
|
/* ¦ Iterate (scan) through a directory's content.
|
|
The FSpIterateDirectory function performs a recursive iteration (scan)
|
|
of the specified directory and calls your IterateFilterProc function once
|
|
for each file and directory found.
|
|
|
|
The maxLevels parameter lets you control how deep the recursion goes.
|
|
If maxLevels is 1, FSpIterateDirectory only scans the specified directory;
|
|
if maxLevels is 2, FSpIterateDirectory scans the specified directory and
|
|
one subdirectory below the specified directory; etc. Set maxLevels to
|
|
zero to scan all levels.
|
|
|
|
The yourDataPtr parameter can point to whatever data structure you might
|
|
want to access from within the IterateFilterProc.
|
|
|
|
spec input: An FSSpec record specifying the directory to scan.
|
|
maxLevels input: Maximum number of directory levels to scan or
|
|
zero to scan all directory levels.
|
|
iterateFilter input: A pointer to the routine you want called once
|
|
for each file and directory found by
|
|
FSpIterateDirectory.
|
|
yourDataPtr input: A pointer to whatever data structure you might
|
|
want to access from within the IterateFilterProc.
|
|
|
|
Result Codes
|
|
noErr 0 No error
|
|
nsvErr -35 No such volume
|
|
ioErr -36 I/O error
|
|
bdNamErr -37 Bad filename
|
|
fnfErr -43 File not found
|
|
paramErr -50 No default volume or iterateFilter was NULL
|
|
dirNFErr -120 Directory not found or incomplete pathname
|
|
afpAccessDenied -5000 User does not have the correct access
|
|
afpObjectTypeErr -5025 Directory not found or incomplete pathname
|
|
|
|
__________
|
|
|
|
See also: IterateFilterProcPtr, IterateDirectory
|
|
*/
|
|
|
|
/*****************************************************************************/
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#ifndef __COMPILINGMOREFILES
|
|
#undef pascal
|
|
#endif
|
|
|
|
#endif /* __ITERATEDIRECTORY__ */
|