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Inside Macintosh: Files /


Chapter 2 - File Manager

This chapter describes how your application can use the File Manager to store and access data in files or to manipulate files, directories, and volumes. It also provides a complete description of all File Manager routines, data types, and constants.

You need to read the information in this chapter if you wish to use File Manager routines other than those described in the chapter "Introduction to File Management" earlier in this book. That chapter shows how to use the File Manager, the Standard File Package, and other system software components to handle the typical File menu commands and perform other common file-manipulation operations. This chapter addresses a number of other important file-related issues, including

This chapter also addresses some advanced topics of interest primarily to designers
of very specialized applications or file-system utility programs. These advanced
topics include

To use this chapter, you should already be familiar with the information presented in the chapter "Introduction to File Management" earlier in this book.

This chapter begins with a general introduction to the File Manager and the services it provides. Then it describes


Chapter Contents
About the File Manager
File Manipulation
Directory Manipulation
Volume Manipulation
Volume Searching
Shared Environments
Shared File Access Permissions
Directory Access Privileges
Remote Volume Mounting
Privilege Information in Foreign File Systems
File ID Reference Routines
Identifying Files, Directories, and Volumes
File System Specifications
File IDs
Directory IDs
Volume Reference Numbers
Working Directory Reference Numbers
Names and Pathnames
HFS Specifications
Search Paths
Using the File Manager
Determining the Features of the File Manager
Creating File System Specification Records
Manipulating the Default Volume and Directory
Deleting Files and File Forks
Searching a Volume
Constructing Full Pathnames
Determining the Amount of Free Space on a Volume
Sharing Volumes and Directories
Locking and Unlocking File Ranges
Data Organization on Volumes
Disk and Volume Organization
Boot Blocks
Master Directory Blocks
Volume Bitmaps
B*-Trees
Nodes
Node Records
Header Nodes
Map Nodes
Index Nodes
Leaf Nodes
Catalog Files
Catalog File Keys
Catalog File Data Records
Extents Overflow Files
Data Organization in Memory
The File I/O Queue
Volume Control Blocks
File Control Blocks
B*-Tree Control Blocks
The Drive Queue
File Manager Reference
Data Structures
File System Specification Record
Basic File Manager Parameter Block
HFS Parameter Block
Catalog Information Parameter Blocks
Catalog Position Records
Catalog Move Parameter Blocks
Working Directory Parameter Blocks
File Control Block Parameter Blocks
Volume Attributes Buffer
Volume Mounting Information Records
High-Level File Access Routines
Reading, Writing, and Closing Files
Manipulating the File Mark
Manipulating the End-of-File
Allocating File Blocks
Low-Level File Access Routines
Reading, Writing, and Closing Files
Manipulating the File Mark
Manipulating the End-of-File
Allocating File Blocks
Updating Files
High-Level Volume Access Routines
Unmounting Volumes
Updating Volumes
Manipulating the Default Volume
Obtaining Volume Information
Low-Level Volume Access Routines
Mounting and Unmounting Volumes
Updating Volumes
Obtaining Volume Information
Manipulating the Default Volume
File System Specification Routines
Opening Files
Creating and Deleting Files and Directories
Accessing Information About Files and Directories
Moving Files or Directories
Exchanging the Data in Two Files
Creating File System Specifications
High-Level HFS Routines
Opening Files
Creating and Deleting Files and Directories
Accessing Information About Files and Directories
Moving Files or Directories
Maintaining Working Directories
Low-Level HFS Routines
Opening Files
Creating and Deleting Files and Directories
Accessing Information About Files and Directories
Moving Files or Directories
Maintaining Working Directories
Searching a Catalog
Exchanging the Data in Two Files
Shared Environment Routines
Opening Files While Denying Access
Locking and Unlocking File Ranges
Manipulating Share Points
Controlling Directory Access
Mounting Volumes
Controlling Login Access
Copying and Moving Files
File ID Routines
Resolving File ID References
Creating and Deleting File ID References
Foreign File System Routines
Utility Routines
Obtaining Queue Headers
Adding a Drive
Obtaining File Control Block Information
Application-Defined Routines
Completion Routines
Summary of the File Manager
Pascal Summary
Constants
Data Types
Internal Data Types
High-Level File Access Routines
Low-Level File Access Routines
High-Level Volume Access Routines
Low-Level Volume Access Routines
File System Specification Routines
High-Level HFS Routines
Low-Level HFS Routines
Shared Environment Routines
File ID Routines
Foreign File System Routines
Utility Routines
Application-Defined Routine
C Summary
Constants
Data Types
Internal Data Types
High-Level File Access Routines
Low-Level File Access Routines
High-Level Volume Access Routines
Low-Level Volume Access Routines
File System Specification Routines
High-Level HFS Routines
Low-Level HFS Routines
Shared Environment Routines
File ID Routines
Utility Routines
Application-Defined Routine
Assembly-Language Summary
Constants
Data Structures
Trap Macros
Global Variables
Result Codes

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2 JUL 1996

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