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dataBlockHdr.h
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1 /*
2 ** dataBlockHdr.h
3 **
4 ** Author: $Author: purschke $
5 ** Date: $Date: 2000/07/21 01:51:11 $
6 **
7 ** $Log: dataBlockHdr.h,v $
8 ** Revision 1.1.1.1 2000/07/21 01:51:11 purschke
9 ** mlp -- adding the new automakified "basic" module to CVS.
10 **
11 **
12 ** Revision 1.3 1998/12/11 22:01:15 markacs
13 ** (stephen markacs) adding log into cvs tags
14 **
15 */
16 /*
17 **
18 ** dataBlockHdr.h
19 **
20 ** This file defines the descriptor for the data block and some constants
21 ** used for interpreting, accessing or storing data in the descriptor.
22 ** It also defines the default setting for all of the data descriptor
23 ** fields, even those set by the user.
24 **/
25 
26 
27 #ifndef _DATABLOCKHDR_
28 #define _DATABLOCKHDR_
29 
30 /*
31 ** Use C linkage
32 */
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36 
37  typedef
38  struct dataBlockHdr {
39 
40  BYTE wordSize ; /* "Word" size used to store packet data */
41  BYTE addrLength ; /* number of bytes used for channel address*/
42  BYTE hitLength ; /* Length of a single "hit" in bytes */
43  BYTE dataPadding ; /* Padding of the data block */
44 
45  SWORD hitFormat ; /* Format of a single hit */
46  SWORD numEntries ; /* Number of "objects" stored in packet *
47  * (definition depends on packetStruct) */
48  } DATABLOCKHDR, * DATABLOCKHDR_ptr;
49  /*
50  ** These are the default settings for all of the fields
51  ** in the data descriptor. Some of the fields are user specified,
52  ** but still have default values listed here.
53  */
54 
55 #define CURRENT_NUM_ENTRIES 0
56 #define CURRENT_WORD_SIZE 0
57 #define CURRENT_HIT_LENGTH 0
58 #define CURRENT_HIT_FORMAT 0
59 #define CURRENT_ADDR_LENGTH 0
60 #define CURRENT_DATA_PADDING 0
61 #define CURRENT_DESC_LENGTH 2
62 #define CURRENT_UNSTRUCT_DESC_LENGTH 1
63 
64 CONSTANT UINT currentNumEntries = CURRENT_NUM_ENTRIES;
65 CONSTANT UINT currentWordSize = CURRENT_WORD_SIZE;
66 CONSTANT UINT currentHitLength = CURRENT_HIT_LENGTH;
67 CONSTANT UINT currentHitFormat = CURRENT_HIT_FORMAT;
68 CONSTANT UINT currentAddrLength = CURRENT_ADDR_LENGTH;
69 CONSTANT UINT currentDataPadding = CURRENT_DATA_PADDING;
70 CONSTANT UINT currentDescLength = CURRENT_DESC_LENGTH;
71 CONSTANT UINT currentUnstructDescLength = CURRENT_UNSTRUCT_DESC_LENGTH;
72 #ifdef __cplusplus
73 }
74 /* end of extern "C" */
75 #endif
76 
77 #endif
78 /* end the ifndef in _DATABLOCKHDR_ block */