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annotate gsm-fw/nucleus/smse.c @ 363:28a2965df6aa

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OSL: os_ReceiveFromQueue() reconstructed
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Wed, 28 May 2014 22:51:59 +0000
parents afceeeb2cba1
children
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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 /* smse.c 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 /* SM - Semaphore 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 the error checking routines for the */
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25 /* supplemental functions of the Semaphore component. This permits */
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26 /* easy removal of error checking logic when it is not needed. */
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27 /* */
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28 /* DATA STRUCTURES */
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29 /* */
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30 /* None */
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31 /* */
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32 /* FUNCTIONS */
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33 /* */
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34 /* SMSE_Reset_Semaphore Reset a semaphore */
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35 /* */
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36 /* DEPENDENCIES */
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37 /* */
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38 /* cs_extr.h Common Service functions */
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39 /* tc_extr.h Thread Control functions */
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40 /* sm_extr.h Semaphore functions */
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41 /* */
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42 /* HISTORY */
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43 /* */
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44 /* DATE REMARKS */
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45 /* */
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46 /* 03-01-1994 Created initial version 1.1 from */
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47 /* routines originally in core */
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48 /* error checking file */
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49 /* */
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50 /* 03-18-1994 Verified version 1.1 */
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51 /* 04-17-1996 updated to version 1.2 */
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52 /* 03-24-1998 Released version 1.3 */
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53 /* 04-17-2002 Released version 1.13m */
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54 /* 11-07-2002 Released version 1.14 */
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55 /*************************************************************************/
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56 #define NU_SOURCE_FILE
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57
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58
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59 #include "cs_extr.h" /* Common service functions */
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60 #include "tc_extr.h" /* Thread control functions */
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61 #include "sm_extr.h" /* Semaphore functions */
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62
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63
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64
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65 /*************************************************************************/
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66 /* */
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67 /* FUNCTION */
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68 /* */
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69 /* SMSE_Reset_Semaphore */
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70 /* */
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71 /* DESCRIPTION */
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72 /* */
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73 /* This function performs error checking on the parameters supplied */
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74 /* to the reset semaphore function. */
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75 /* */
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76 /* CALLED BY */
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77 /* */
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78 /* Application */
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79 /* */
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80 /* CALLS */
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81 /* */
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82 /* SMS_Reset_Semaphore Actual reset semaphore func. */
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83 /* */
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84 /* INPUTS */
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85 /* */
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86 /* semaphore_ptr Semaphore control block ptr */
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87 /* initial_count Initial count to reset the */
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88 /* semaphore to */
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89 /* */
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90 /* OUTPUTS */
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91 /* */
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92 /* NU_INVALID_SEMAPHORE Invalid semaphore pointer */
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93 /* */
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94 /* HISTORY */
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95 /* */
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96 /* DATE REMARKS */
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97 /* */
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98 /* 03-01-1993 Created initial version 1.0 */
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99 /* 04-19-1993 Verified version 1.0 */
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100 /* 03-01-1994 Modified function interface, */
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101 /* resulting in version 1.1 */
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102 /* */
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103 /* 03-18-1994 Verified version 1.1 */
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104 /* */
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105 /*************************************************************************/
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106 STATUS SMSE_Reset_Semaphore(NU_SEMAPHORE *semaphore_ptr,
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107 UNSIGNED initial_count)
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108 {
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109
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110 SM_SCB *semaphore; /* Semaphore control blk ptr */
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111 STATUS status; /* Completion status */
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112
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113
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114 /* Move input semaphore pointer into internal pointer. */
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115 semaphore = (SM_SCB *) semaphore_ptr;
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116
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117 /* Determine if the semaphore pointer is valid. */
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118 if ((semaphore) && (semaphore -> sm_id == SM_SEMAPHORE_ID))
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119
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120 /* Semaphore pointer is valid, call function to reset it. */
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121 status = SMS_Reset_Semaphore(semaphore_ptr, initial_count);
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122
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123 else
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124
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125 /* Semaphore pointer is invalid, indicate in completion status. */
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126 status = NU_INVALID_SEMAPHORE;
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127
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128 /* Return completion status. */
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129 return(status);
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130 }
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131
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132
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133
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134