1 | -- |
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2 | -- RTEMS / Body |
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3 | -- |
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4 | -- DESCRIPTION: |
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5 | -- |
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6 | -- This package provides the interface to the RTEMS API. |
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7 | -- |
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8 | -- |
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9 | -- DEPENDENCIES: |
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10 | -- |
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11 | -- |
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12 | -- |
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13 | -- COPYRIGHT (c) 1997-2011. |
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14 | -- On-Line Applications Research Corporation (OAR). |
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15 | -- |
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16 | -- The license and distribution terms for this file may in |
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17 | -- the file LICENSE in this distribution or at |
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18 | -- http://www.rtems.org/license/LICENSE. |
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19 | -- |
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20 | |
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21 | with Ada; |
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22 | with Ada.Unchecked_Conversion; |
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23 | with Interfaces; use Interfaces; |
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24 | with Interfaces.C; use Interfaces.C; |
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25 | with Interfaces.C.Strings; use Interfaces.C.Strings; |
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26 | |
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27 | package body RTEMS.Barrier is |
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28 | |
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29 | -- |
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30 | -- Barrier Manager |
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31 | -- |
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32 | |
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33 | procedure Create |
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34 | (Name : in RTEMS.Name; |
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35 | Attribute_Set : in RTEMS.Attribute; |
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36 | Maximum_Waiters : in RTEMS.Unsigned32; |
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37 | ID : out RTEMS.ID; |
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38 | Result : out RTEMS.Status_Codes) |
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39 | is |
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40 | function Create_Base |
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41 | (Name : RTEMS.Name; |
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42 | Attribute_Set : RTEMS.Attribute; |
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43 | Maximum_Waiters : RTEMS.Unsigned32; |
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44 | ID : access RTEMS.ID) |
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45 | return RTEMS.Status_Codes; |
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46 | pragma Import (C, Create_Base, "rtems_barrier_create"); |
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47 | ID_Base : aliased RTEMS.ID; |
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48 | begin |
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49 | |
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50 | Result := |
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51 | Create_Base |
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52 | (Name, |
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53 | Attribute_Set, |
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54 | Maximum_Waiters, |
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55 | ID_Base'Access); |
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56 | ID := ID_Base; |
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57 | |
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58 | end Create; |
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59 | |
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60 | procedure Ident |
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61 | (Name : in RTEMS.Name; |
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62 | ID : out RTEMS.ID; |
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63 | Result : out RTEMS.Status_Codes) |
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64 | is |
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65 | function Ident_Base |
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66 | (Name : RTEMS.Name; |
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67 | ID : access RTEMS.ID) |
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68 | return RTEMS.Status_Codes; |
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69 | pragma Import (C, Ident_Base, "rtems_barrier_ident"); |
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70 | ID_Base : aliased RTEMS.ID; |
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71 | begin |
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72 | |
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73 | Result := Ident_Base (Name, ID_Base'Access); |
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74 | ID := ID_Base; |
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75 | |
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76 | end Ident; |
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77 | |
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78 | procedure Delete |
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79 | (ID : in RTEMS.ID; |
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80 | Result : out RTEMS.Status_Codes) |
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81 | is |
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82 | function Delete_Base |
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83 | (ID : RTEMS.ID) |
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84 | return RTEMS.Status_Codes; |
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85 | pragma Import (C, Delete_Base, "rtems_barrier_delete"); |
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86 | begin |
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87 | |
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88 | Result := Delete_Base (ID); |
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89 | |
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90 | end Delete; |
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91 | |
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92 | procedure Wait |
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93 | (ID : in RTEMS.ID; |
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94 | Timeout : in RTEMS.Interval; |
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95 | Result : out RTEMS.Status_Codes) |
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96 | is |
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97 | function Wait_Base |
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98 | (ID : RTEMS.ID; |
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99 | Timeout : RTEMS.Interval) |
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100 | return RTEMS.Status_Codes; |
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101 | pragma Import (C, Wait_Base, "rtems_barrier_wait"); |
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102 | begin |
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103 | |
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104 | Result := Wait_Base (ID, Timeout); |
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105 | |
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106 | end Wait; |
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107 | |
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108 | procedure Release |
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109 | (ID : in RTEMS.ID; |
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110 | Released : out RTEMS.Unsigned32; |
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111 | Result : out RTEMS.Status_Codes) |
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112 | is |
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113 | function Release_Base |
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114 | (ID : RTEMS.ID; |
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115 | Released : access RTEMS.Unsigned32) |
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116 | return RTEMS.Status_Codes; |
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117 | pragma Import (C, Release_Base, "rtems_barrier_release"); |
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118 | Released_Base : aliased RTEMS.Unsigned32; |
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119 | begin |
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120 | |
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121 | Result := Release_Base (ID, Released_Base'Access); |
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122 | Released := Released_Base; |
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123 | |
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124 | end Release; |
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125 | |
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126 | end RTEMS.Barrier; |
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