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Annotation of ntddk/src/scsi/qic117/gtendblk.c, revision 1.1

1.1     ! root        1: /*++
        !             2: 
        !             3: Copyright (c) 1993 - Colorado Memory Systems, Inc.
        !             4: All Rights Reserved
        !             5: 
        !             6: Module Name:
        !             7: 
        !             8:     gtendblk.c
        !             9: 
        !            10: Abstract:
        !            11: 
        !            12:     Calls SelectTD() once and ReadVolumeEntry() as many times as needed to
        !            13:     find out what the CurrentOperation.EndOfUsedTape is.  Also calls EndRest() which will
        !            14:     verify the entire tape directory.
        !            15: 
        !            16: 
        !            17: Revision History:
        !            18: 
        !            19: 
        !            20: 
        !            21: --*/
        !            22: 
        !            23: //
        !            24: // include files
        !            25: //
        !            26: 
        !            27: #include <ntddk.h>
        !            28: #include <ntddtape.h>
        !            29: #include "common.h"
        !            30: #include "q117.h"
        !            31: #include "protos.h"
        !            32: 
        !            33: 
        !            34: STATUS
        !            35: q117GetEndBlock (
        !            36:     OUT PVOLUME_TABLE_ENTRY TheVolumeTable,
        !            37:     OUT LONG *NumberVolumes,
        !            38:     IN PQ117_CONTEXT Context
        !            39:     )
        !            40: 
        !            41: /*++
        !            42: 
        !            43: Routine Description:
        !            44: 
        !            45:     Calls SelectTD() once and ReadVolumeEntry() as many times as needed to
        !            46:     find out what the CurrentOperation.EndOfUsedTape is.  Also calls EndRest() which will
        !            47:     verify the entire tape directory.
        !            48: 
        !            49: Arguments:
        !            50: 
        !            51:     TheVolumeTable - Last volume on the tape
        !            52: 
        !            53:     NumberVolumes - Number of volumes on the tape
        !            54: 
        !            55:     Context - Current context of the driver.
        !            56: 
        !            57: Return Value:
        !            58: 
        !            59:     NoErr,  any Driver error except BadBlk,
        !            60:     <EndOfVol>, <LinkRC>, RdncUnsc.
        !            61: 
        !            62: --*/
        !            63: 
        !            64: {
        !            65:     VOLUME_TABLE_ENTRY cur_table;
        !            66:     STATUS ret;                     // Return value from other routines called.
        !            67: 
        !            68:     *NumberVolumes = 0;
        !            69: 
        !            70:     //
        !            71:     // This will initialize 'ActiveVolumeNumber' and 'CurrentOperation.EndOfUsedTape'.
        !            72:     // FMemErr, any Driver error except BadBlk, <EndOfVol>, RdncUnsc.
        !            73:     //
        !            74: 
        !            75:     ret=q117SelectTD(Context);
        !            76: 
        !            77:     while (ret == NoErr) {
        !            78: 
        !            79:         if (ret = q117ReadVolumeEntry(&cur_table,Context)) {
        !            80: 
        !            81:             //
        !            82:             // <FMemErr>, any Driver error except BadBlk, <LinkRC>,
        !            83:             // <EndOfVol>, RdncUnsc.
        !            84:             //
        !            85: 
        !            86:             if (ret != EndOfVol) {
        !            87: 
        !            88:                 return(ret);
        !            89: 
        !            90:             }
        !            91: 
        !            92:         }
        !            93: 
        !            94:         if (ret != EndOfVol) {
        !            95: 
        !            96:             ++(*NumberVolumes);
        !            97:             *TheVolumeTable = cur_table;
        !            98: 
        !            99:         }
        !           100:     }
        !           101: 
        !           102:     if (ret && ret != EndOfVol) {
        !           103: 
        !           104:         return(ret);
        !           105: 
        !           106:     }
        !           107: 
        !           108:     ret=q117EndRest(Context);
        !           109: 
        !           110:     return(ret);
        !           111: }
        !           112: 

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