186 lines
9.6 KiB
HTML
186 lines
9.6 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Example: Saving to multiple devices" />
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<meta name="abstract" content="This example program shows how to save a large library using more than one device at the same time." />
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<meta name="description" content="This example program shows how to save a large library using more than one device at the same time." />
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<meta name="DC.Relation" scheme="URI" content="apiexmp.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="apiexsavdev" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Example: Saving to multiple devices</title>
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</head>
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<body id="apiexsavdev"><a name="apiexsavdev"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Example: Saving to multiple devices</h1>
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<div><p>This example program shows how to save a large library using more
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than one device at the same time.</p>
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<div class="section"><div class="note"><span class="notetitle">Note:</span> Read the <a href="codedisclaimer.htm">Code license and disclaimer information</a> for important
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legal information.</div>
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<pre>/*******************************************************************/
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/* PROGRAM: SaveBigLib */
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/* */
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/* LANGUAGE: ILE C */
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/* */
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/* DESCRIPTION: This is an example program for the use of */
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/* a media definition in a save operation. */
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/* It saves library BIGLIB in parallel format to */
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/* two media files, using tape media library */
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/* TAPMLB01. */
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/* */
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/* The flow of this program is as follows: */
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/* (1) Build media definition input. */
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/* (2) Create a media definition using */
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/* QsrCreateMediaDefinition. */
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/* (3) Save library BIGLIB using the media */
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/* definition. */
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/* */
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/* APIs USED: QsrCreateMediaDefinition, QCMDEXC */
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/* */
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/*******************************************************************/
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#include <qcmdexc.h>
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#include <qsrlib01.h>
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#include <qusec.h>
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#include <string.h>
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/*******************************************************************/
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/* Variables for QsrCreateMediaDefinition */
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/*******************************************************************/
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char Data_Buffer[1000];
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Qsr_TAPE0100_t *Input_Data;
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Qsr_TAPE0100_Device_t *Device;
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Qsr_TAPE0100_File_t *Media_File;
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char *Next_Free;
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char *Volid;
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Qus_EC_t Err_Code;
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int Data_Length;
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char Text[50];
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/*******************************************************************/
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/* Variables for QCMDEXC */
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/*******************************************************************/
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char Cmd_String[100];
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decimal(15,5) Cmd_Length;
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/*******************************************************************/
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/* Start of main() */
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/*******************************************************************/
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int main (int argc, char *argv[]) {
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/*******************************************************************/
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/* Specify input data for QsrCreateMediaDefinition. */
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/*******************************************************************/
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/*-----------------------------------------------------------------*/
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/* Build general media definition input data. */
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/* Use one device with two parallel device resources. */
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/*-----------------------------------------------------------------*/
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memset(Data_Buffer,0,sizeof(Data_Buffer));
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Input_Data = (Qsr_TAPE0100_t*)Data_Buffer;
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Next_Free = (char*)(Input_Data + 1);
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Input_Data->Maximum_Resources = 2;
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Input_Data->Minimum_Resources = 2;
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Input_Data->Offset_First_Device = Next_Free - Data_Buffer;
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Input_Data->Device_Count = 1;
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/*-----------------------------------------------------------------*/
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/* Build input data for the first device. */
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/* Use device TAPMLB01 with two media files. */
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/*-----------------------------------------------------------------*/
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Device = (Qsr_TAPE0100_Device_t*)Next_Free;
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Next_Free = (char*)(Device + 1);
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memcpy(Device->Device_Name,"TAPMLB01 ",10);
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Device->Offset_First_File = Next_Free - Data_Buffer;
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Device->File_Count = 2;
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/*-----------------------------------------------------------------*/
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/* Build input data for the first media file for device TAPMLB01. */
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/* Use the default sequence number, and volumes VOL11 and VOL12. */
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/*-----------------------------------------------------------------*/
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Media_File = (Qsr_TAPE0100_File_t*)Next_Free;
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Next_Free = (char*)(Media_File + 1);
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Media_File->Sequence_Number = 0;
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Media_File->Offset_First_Volume_Id = Next_Free - Data_Buffer;
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Media_File->Volume_Id_Count = 2;
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Media_File->Volume_Id_Length = 6;
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Media_File->Starting_Volume = 1;
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Data_Length = Media_File->Volume_Id_Count
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* Media_File->Volume_Id_Length;
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Volid = Next_Free;
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memcpy(Volid,"VOL11 VOL12 ",Data_Length);
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if (Data_Length % 4) /* Ensure that Next_Free */
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Data_Length += (4 - (Data_Length % 4)); /* is incremented by a */
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Next_Free += Data_Length; /* multiple of 4. */
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Media_File->Offset_Next_File = Next_Free - Data_Buffer;
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/*------------------------------------------------------------------*/
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/* Build input data for the second media file for device TAPMLB01. */
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/* Use the default sequence number, and volumes VOL21 and VOL22. */
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/*------------------------------------------------------------------*/
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Media_File = (Qsr_TAPE0100_File_t*)Next_Free;
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Next_Free = (char*)(Media_File + 1);
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Media_File->Sequence_Number = 0;
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Media_File->Offset_First_Volume_Id = Next_Free - Data_Buffer;
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Media_File->Volume_Id_Count = 2;
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Media_File->Volume_Id_Length = 6;
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Media_File->Starting_Volume = 1;
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Data_Length = Media_File->Volume_Id_Count
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* Media_File->Volume_Id_Length;
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Volid = Next_Free;
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memcpy(Volid,"VOL21 VOL22 ",Data_Length);
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if (Data_Length % 4) /* Ensure that Next_Free */
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Data_Length += (4 - (Data_Length % 4)); /* is incremented by a */
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Next_Free += Data_Length; /* multiple of 4. */
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/********************************************************************/
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/* Create the media definition. */
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/********************************************************************/
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Data_Length = Next_Free - Data_Buffer;
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memset(Text,' ',sizeof(Text));
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memcpy(Text,"Save BIGLIB",11);
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QsrCreateMediaDefinition(
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"SAVEBIGLIBQTEMP ", /* Media definition */
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name, library */
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Data_Buffer, /* Input data */
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Data_Length, /* Length of data */
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"TAPE0100", /* Format name */
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"*USE ", /* Public authority */
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Text, /* Text description */
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1, /* Replace if it exists */
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&Err_Code); /* Error code */
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/********************************************************************/
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/* Save library BIGLIB using the media definition. */
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/********************************************************************/
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strcpy(Cmd_String,
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"SAVLIB LIB(BIGLIB) DEV(*MEDDFN) MEDDFN(QTEMP/SAVEBIGLIB)");
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Cmd_Length = strlen(Cmd_String);
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QCMDEXC(Cmd_String,Cmd_Length);
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return 0;
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}</pre>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="apiexmp.htm" title="Contains example programs that use APIs and exit programs.">Examples: APIs</a></div>
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</div>
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</div>
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</body>
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</html>
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