HP 3000 Manuals

Summary of New and Enhanced Features [ New Features of MPE/iX: Using the Hierarchical File System ] MPE/iX 5.0 Documentation


New Features of MPE/iX: Using the Hierarchical File System

Summary of New and Enhanced Features 

This section provides a quick summary of new and enhanced features
accessible through MPE/iX system intrinsics.  Refer to later sections in
the chapter for more detailed information about these features.

New features 

   *   Hierarchical directory files

   *   MPE/iX byte-stream files

   *   Renaming a file across account boundaries

   *   Append mode (versus append access)

Enhanced features 

   *   Security features

   *   Object ownership

   *   Closing a file

   *   Listing file information

   *   Terminating file name strings

   *   Accessing a file by its file name

   *   The intrinsics listed in Table 4-1.

          Table 4-1.  Enhanced MPE/iX Intrinsics 

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|                           |                                                              |
|      Intrinsic Name       |                      Summary of Changes                      |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FCHECK                    | Provides additional file system error codes.                 |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FCLOSE                    | Supports hierarchical directories and byte- stream files.    |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FCONTROL                  | Supports hierarchical directories and byte- stream files.    |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FFILEINFO                 | Enhanced and new item numbers return information about       |
|                           | hierarchical directories and byte-stream files.  Supports    |
|                           | HFS syntax.                                                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FGETINFO                  | Enhanced parameters return information about byte-stream     |
|                           | files but only limited information about hierarchical        |
|                           | directories.  Does not support HFS syntax.                   |
|                           |                                                              |
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|                           |                                                              |
| FLABELINFO                | Enhanced and new item numbers return information about       |
|                           | hierarchical directories and byte-stream files.  Supports    |
|                           | HFS syntax.                                                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FLOCK                     | Supports byte-stream files.  Hierarchical directories cannot |
|                           | be locked.                                                   |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FOPEN                     | Supports HFS syntax.  Creates and opens byte-stream files    |
|                           | and opens hierarchical directories.  Cannot create           |
|                           | hierarchical directories.                                    |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FPARSE                    | Does not support HFS syntax.                                 |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FPOINT                    | Supports byte-stream files.                                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FREAD                     | Supports byte-stream files.                                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FREADDIR                  | Supports byte-stream files.                                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FREADLABEL                | Supports byte-stream files.                                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------

          Table 4-1.  Enhanced MPE/iX Intrinsics (cont.) 

--------------------------------------------------------------------------------------------
|                           |                                                              |
|      Intrinsic Name       |                      Summary of Changes                      |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FREADSEEK                 | Supports byte-stream files.                                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FRENAME                   | Supports HFS syntax.  Supports renaming of files across      |
|                           | account boundaries.                                          |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FSPACE                    | Supports byte-stream files.                                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FWRITE                    | Supports byte-stream files.                                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FWRITEDIR                 | Supports byte-stream files.                                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| FWRITELABEL               | Supports byte-stream files.                                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| HPACDINFO                 | Supports HFS syntax.  Provides new and enhanced security     |
|                           | features.                                                    |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| HPACDPUT                  | Supports HFS syntax.  Provides new and enhanced security     |
|                           | features.                                                    |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| HPCICOMMAND               | Supports up to 512 chars in command buffer.                  |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| HPDEVCONTROL              | Supports setting data compression.                           |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| HPDEVCREATE               | Allows creation of FIFO and device link files.               |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| HPFOPEN                   | Supports HFS syntax.  Creates and opens both hierarchical    |
|                           | directories and byte-stream files.                           |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| HPPIPE                    | Allows the creation of pipe files.                           |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| PRINTFILEINFO             | Supports HFS syntax.  Supports both hierarchical directories |
|                           | and byte-stream files.                                       |
|                           |                                                              |
--------------------------------------------------------------------------------------------
|                           |                                                              |
| STACKDUMP                 | Limited support of HFS syntax.  Special considerations for   |
|                           | file name terminating characters.                            |
|                           |                                                              |
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MPE/iX 5.0 Documentation