Hp XP20000XP24000 Disk Array Manuel d'utilisateur télécharger pdf (Page 174)

6-20 Performing File Access Library (FAL) Operations

Hitachi USP V Cross-OS File Exchange User’s Guide

Open Dataset

Format:

datasetError=dataset_Open(global,g_error,devname,dsname,voltype,

mode)

Table 6-13 Arguments, Types and Descriptions for Open Data Set

Argument Type Description

global

g_error

devname

dsname

voltypr

mode

Return value: datasetError

-1

void (see Note 1)

long (see Note 1)

char (see Note 1)

char (see Note

long

Global memory area

An error information stored area

raw device name

dataset name

volume emulation type

open mod

Abnormal end

Note 1: When you issue this function, you must issue dataset_ Close() in

the end process.

Note 2: You must issue this function before dataset_Open(), Get(),

dataset_Get2(), dataset_Put(), dataset_Put2(), dataset_Rewind(),

and dataset_GetFileInformation().

This function opens a specified dataset (file) with a specified open mode.

• Argument:

– global: global memory area (specify a Global memory area gotten by

dataset_AllocGlobal)

– g_error: Specify an address to store FAL error code.

– devname: raw device name (special file)

– dsname: dataset name

– voltype: Device emulation type (3390-3A/9A/LA,and 3390-3B/9B/LB,

3380-3A, 3380-3B)

– mode:

• “r”: Read only

• “w”: Write only

– Return Value: When this function ends abnormally, it returns -1.

• Example:

void *memptr; /* global memory area */

long err,datasetError; /* global err information */

1 2 ... 169 170 171 172 173 174 175 176 177 178 179 ... 225 226

Commentaires sur ces manuels

Pas de commentaire

Hp XP20000XP24000 Disk Array Manuel d'utilisateur Page 174

Commentaires sur ces manuels

Produits connexes et manuels pour Stockage Hp XP20000XP24000 Disk Array