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annotate src/nucleus/mb_defs.h @ 7:0f80e1e4dce4

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src/nucleus: library C code import from FreeNucleus package
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 15 Jul 2018 20:57:33 +0000
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1 /*************************************************************************/
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2 /* */
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3 /* Copyright Mentor Graphics Corporation 2002 */
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4 /* All Rights Reserved. */
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5 /* */
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6 /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */
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7 /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */
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8 /* SUBJECT TO LICENSE TERMS. */
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9 /* */
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10 /*************************************************************************/
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11
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12 /*************************************************************************/
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13 /* */
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14 /* FILE NAME VERSION */
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15 /* */
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16 /* mb_defs.h Nucleus PLUS 1.14 */
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17 /* */
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18 /* COMPONENT */
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19 /* */
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20 /* MB - Mailbox Management */
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21 /* */
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22 /* DESCRIPTION */
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23 /* */
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24 /* This file contains data structure definitions and constants for */
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25 /* the message Mailbox component. */
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26 /* */
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27 /* DATA STRUCTURES */
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28 /* */
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29 /* MB_MCB Mailbox control block */
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30 /* MB_SUSPEND Mailbox suspension block */
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31 /* */
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32 /* FUNCTIONS */
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33 /* */
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34 /* None */
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35 /* */
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36 /* DEPENDENCIES */
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37 /* */
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38 /* cs_defs.h Common service definitions */
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39 /* tc_defs.h Thread Control definitions */
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40 /* */
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41 /* HISTORY */
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42 /* */
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43 /* DATE REMARKS */
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44 /* */
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45 /* 03-01-1993 Created initial version 1.0 */
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46 /* 04-19-1993 Verified version 1.0 */
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47 /* 03-01-1994 Moved include files outside of */
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48 /* the file #ifndef to allow the */
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49 /* use of actual data structures, */
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50 /* removed protection structure */
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51 /* inside of each mailbox, added */
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52 /* padding logic, resulting in */
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53 /* version 1.1 */
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54 /* */
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55 /* 03-18-1994 Verified version 1.1 */
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56 /* 04-17-1996 updated to version 1.2 */
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57 /* 03-24-1998 Released version 1.3 */
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58 /* 03-26-1999 Released 1.11m (new release */
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59 /* numbering scheme) */
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60 /* 04-17-2002 Released version 1.13m */
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61 /* 11-07-2002 Released version 1.14 */
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62 /*************************************************************************/
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63
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64 #include "cs_defs.h" /* Common service constants */
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65 #include "tc_defs.h" /* Thread control constants */
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66
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67
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68 /* Check to see if the file has been included already. */
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69
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70 #ifndef MB_DEFS
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71 #define MB_DEFS
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72
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74 /* Define constants local to this component. */
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75
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76 #define MB_MAILBOX_ID 0x4d424f58UL
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77 #define MB_MESSAGE_SIZE 4
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80 /* Define the Mailbox Control Block data type. */
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81
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82 typedef struct MB_MCB_STRUCT
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83 {
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84 CS_NODE mb_created; /* Node for linking to */
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85 /* created mailbox list */
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86 UNSIGNED mb_id; /* Internal MCB ID */
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87 CHAR mb_name[NU_MAX_NAME]; /* Mailbox name */
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88 BOOLEAN mb_message_present; /* Message present flag */
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89 BOOLEAN mb_fifo_suspend; /* Suspension type flag */
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90 #if PAD_2
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91 DATA_ELEMENT mb_padding[PAD_2];
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92 #endif
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93 UNSIGNED mb_tasks_waiting; /* Number of waiting tasks*/
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94 UNSIGNED /* Message area */
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95 mb_message_area[MB_MESSAGE_SIZE];
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96 struct MB_SUSPEND_STRUCT
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97 *mb_suspension_list; /* Suspension list */
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98 } MB_MCB;
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99
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101 /* Define the mailbox suspension structure. This structure is allocated off of
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102 the caller's stack. */
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103
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104 typedef struct MB_SUSPEND_STRUCT
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105 {
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106 CS_NODE mb_suspend_link; /* Link to suspend blocks */
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107 MB_MCB *mb_mailbox; /* Pointer to the mailbox */
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108 TC_TCB *mb_suspended_task; /* Task suspended */
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109 UNSIGNED *mb_message_area; /* Pointer to message area*/
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110 STATUS mb_return_status; /* Return status */
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111 } MB_SUSPEND;
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112
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113 #endif
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