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.com/license/LICENSE. |
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19 | -- |
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20 | -- $Id$ |
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21 | -- |
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22 | |
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23 | with Interfaces; use Interfaces; |
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24 | with Interfaces.C.Strings; use Interfaces.C.Strings; |
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25 | |
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26 | package body RTEMS.Object is |
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27 | |
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28 | -- |
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29 | -- Object Services |
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30 | -- |
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31 | |
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32 | function Build_Name |
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33 | (C1 : in Character; |
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34 | C2 : in Character; |
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35 | C3 : in Character; |
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36 | C4 : in Character) |
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37 | return RTEMS.Name |
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38 | is |
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39 | C1_Value : RTEMS.Unsigned32; |
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40 | C2_Value : RTEMS.Unsigned32; |
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41 | C3_Value : RTEMS.Unsigned32; |
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42 | C4_Value : RTEMS.Unsigned32; |
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43 | begin |
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44 | |
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45 | C1_Value := Character'Pos (C1); |
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46 | C2_Value := Character'Pos (C2); |
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47 | C3_Value := Character'Pos (C3); |
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48 | C4_Value := Character'Pos (C4); |
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49 | |
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50 | return Interfaces.Shift_Left (C1_Value, 24) or |
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51 | Interfaces.Shift_Left (C2_Value, 16) or |
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52 | Interfaces.Shift_Left (C3_Value, 8) or |
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53 | C4_Value; |
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54 | |
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55 | end Build_Name; |
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56 | |
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57 | procedure Get_Classic_Name |
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58 | (ID : in RTEMS.ID; |
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59 | Name : out RTEMS.Name; |
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60 | Result : out RTEMS.Status_Codes) |
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61 | is |
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62 | function Get_Classic_Name_Base |
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63 | (ID : RTEMS.ID; |
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64 | Name : access RTEMS.Name) |
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65 | return RTEMS.Status_Codes; |
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66 | pragma Import |
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67 | (C, |
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68 | Get_Classic_Name_Base, |
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69 | "rtems_object_get_classic_name"); |
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70 | Tmp_Name : aliased RTEMS.Name; |
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71 | begin |
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72 | Result := Get_Classic_Name_Base (ID, Tmp_Name'Access); |
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73 | Name := Tmp_Name; |
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74 | end Get_Classic_Name; |
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75 | |
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76 | procedure Get_Name |
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77 | (ID : in RTEMS.ID; |
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78 | Name : out String; |
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79 | Result : out RTEMS.Address) |
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80 | is |
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81 | function Get_Name_Base |
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82 | (ID : RTEMS.ID; |
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83 | Length : RTEMS.Unsigned32; |
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84 | Name : RTEMS.Address) |
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85 | return RTEMS.Address; |
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86 | pragma Import (C, Get_Name_Base, "rtems_object_get_name"); |
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87 | begin |
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88 | Name := (others => ASCII.NUL); |
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89 | Result := |
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90 | Get_Name_Base (ID, Name'Length, Name (Name'First)'Address); |
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91 | end Get_Name; |
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92 | |
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93 | procedure Set_Name |
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94 | (ID : in RTEMS.ID; |
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95 | Name : in String; |
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96 | Result : out RTEMS.Status_Codes) |
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97 | is |
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98 | function Set_Name_Base |
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99 | (ID : RTEMS.ID; |
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100 | Name : chars_ptr) |
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101 | return RTEMS.Status_Codes; |
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102 | pragma Import (C, Set_Name_Base, "rtems_object_set_name"); |
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103 | NameAsCString : constant chars_ptr := New_String (Name); |
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104 | begin |
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105 | Result := Set_Name_Base (ID, NameAsCString); |
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106 | end Set_Name; |
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107 | |
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108 | procedure Id_Get_API |
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109 | (ID : in RTEMS.ID; |
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110 | API : out RTEMS.Unsigned32) |
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111 | is |
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112 | function Id_Get_API_Base |
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113 | (ID : RTEMS.ID) |
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114 | return RTEMS.Unsigned32; |
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115 | pragma Import (C, Id_Get_API_Base, "rtems_object_id_get_api"); |
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116 | begin |
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117 | API := Id_Get_API_Base (ID); |
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118 | end Id_Get_API; |
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119 | |
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120 | procedure Id_Get_Class |
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121 | (ID : in RTEMS.ID; |
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122 | The_Class : out RTEMS.Unsigned32) |
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123 | is |
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124 | function Id_Get_Class_Base |
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125 | (ID : RTEMS.ID) |
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126 | return RTEMS.Unsigned32; |
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127 | pragma Import |
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128 | (C, |
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129 | Id_Get_Class_Base, |
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130 | "rtems_object_id_get_class"); |
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131 | begin |
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132 | The_Class := Id_Get_Class_Base (ID); |
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133 | end Id_Get_Class; |
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134 | |
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135 | procedure Id_Get_Node |
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136 | (ID : in RTEMS.ID; |
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137 | Node : out RTEMS.Unsigned32) |
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138 | is |
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139 | function Id_Get_Node_Base |
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140 | (ID : RTEMS.ID) |
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141 | return RTEMS.Unsigned32; |
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142 | pragma Import (C, Id_Get_Node_Base, "rtems_object_id_get_node"); |
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143 | begin |
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144 | Node := Id_Get_Node_Base (ID); |
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145 | end Id_Get_Node; |
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146 | |
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147 | procedure Id_Get_Index |
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148 | (ID : in RTEMS.ID; |
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149 | Index : out RTEMS.Unsigned32) |
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150 | is |
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151 | function Id_Get_Index_Base |
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152 | (ID : RTEMS.ID) |
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153 | return RTEMS.Unsigned32; |
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154 | pragma Import |
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155 | (C, |
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156 | Id_Get_Index_Base, |
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157 | "rtems_object_id_get_index"); |
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158 | begin |
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159 | Index := Id_Get_Index_Base (ID); |
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160 | end Id_Get_Index; |
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161 | |
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162 | function Build_Id |
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163 | (The_API : in RTEMS.Unsigned32; |
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164 | The_Class : in RTEMS.Unsigned32; |
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165 | The_Node : in RTEMS.Unsigned32; |
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166 | The_Index : in RTEMS.Unsigned32) |
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167 | return RTEMS.ID |
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168 | is |
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169 | function Build_Id_Base |
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170 | (The_API : RTEMS.Unsigned32; |
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171 | The_Class : RTEMS.Unsigned32; |
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172 | The_Node : RTEMS.Unsigned32; |
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173 | The_Index : RTEMS.Unsigned32) |
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174 | return RTEMS.ID; |
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175 | pragma Import (C, Build_Id_Base, "rtems_build_id"); |
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176 | begin |
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177 | return Build_Id_Base (The_API, The_Class, The_Node, The_Index); |
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178 | end Build_Id; |
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179 | |
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180 | function Id_API_Minimum return RTEMS.Unsigned32 is |
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181 | function Id_API_Minimum_Base return RTEMS.Unsigned32; |
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182 | pragma Import |
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183 | (C, |
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184 | Id_API_Minimum_Base, |
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185 | "rtems_object_id_api_minimum"); |
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186 | begin |
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187 | return Id_API_Minimum_Base; |
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188 | end Id_API_Minimum; |
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189 | |
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190 | function Id_API_Maximum return RTEMS.Unsigned32 is |
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191 | function Id_API_Maximum_Base return RTEMS.Unsigned32; |
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192 | pragma Import |
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193 | (C, |
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194 | Id_API_Maximum_Base, |
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195 | "rtems_object_id_api_maximum"); |
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196 | begin |
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197 | return Id_API_Maximum_Base; |
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198 | end Id_API_Maximum; |
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199 | |
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200 | procedure API_Minimum_Class |
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201 | (API : in RTEMS.Unsigned32; |
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202 | Minimum : out RTEMS.Unsigned32) |
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203 | is |
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204 | function API_Minimum_Class_Base |
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205 | (API : RTEMS.Unsigned32) |
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206 | return RTEMS.Unsigned32; |
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207 | pragma Import |
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208 | (C, |
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209 | API_Minimum_Class_Base, |
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210 | "rtems_object_api_minimum_class"); |
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211 | begin |
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212 | Minimum := API_Minimum_Class_Base (API); |
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213 | end API_Minimum_Class; |
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214 | |
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215 | procedure API_Maximum_Class |
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216 | (API : in RTEMS.Unsigned32; |
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217 | Maximum : out RTEMS.Unsigned32) |
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218 | is |
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219 | function API_Maximum_Class_Base |
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220 | (API : RTEMS.Unsigned32) |
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221 | return RTEMS.Unsigned32; |
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222 | pragma Import |
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223 | (C, |
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224 | API_Maximum_Class_Base, |
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225 | "rtems_object_api_maximum_class"); |
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226 | begin |
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227 | Maximum := API_Maximum_Class_Base (API); |
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228 | end API_Maximum_Class; |
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229 | |
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230 | -- Translate S from a C-style char* into an Ada String. |
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231 | -- If S is Null_Ptr, return "", don't raise an exception. |
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232 | -- Copied from Lovelace Tutorial |
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233 | function Value_Without_Exception (S : chars_ptr) return String is |
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234 | begin |
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235 | if S = Null_Ptr then |
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236 | return ""; |
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237 | else |
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238 | return Value (S); |
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239 | end if; |
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240 | end Value_Without_Exception; |
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241 | pragma Inline (Value_Without_Exception); |
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242 | |
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243 | procedure Get_API_Name |
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244 | (API : in RTEMS.Unsigned32; |
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245 | Name : out String) |
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246 | is |
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247 | function Get_API_Name_Base |
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248 | (API : RTEMS.Unsigned32) |
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249 | return chars_ptr; |
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250 | pragma Import |
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251 | (C, |
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252 | Get_API_Name_Base, |
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253 | "rtems_object_get_api_name"); |
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254 | Result : constant chars_ptr := Get_API_Name_Base (API); |
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255 | APIName : constant String := Value_Without_Exception (Result); |
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256 | begin |
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257 | Name := APIName; |
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258 | end Get_API_Name; |
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259 | |
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260 | procedure Get_API_Class_Name |
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261 | (The_API : in RTEMS.Unsigned32; |
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262 | The_Class : in RTEMS.Unsigned32; |
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263 | Name : out String) |
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264 | is |
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265 | function Get_API_Class_Name_Base |
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266 | (API : RTEMS.Unsigned32; |
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267 | Class : RTEMS.Unsigned32) |
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268 | return chars_ptr; |
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269 | pragma Import |
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270 | (C, |
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271 | Get_API_Class_Name_Base, |
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272 | "rtems_object_get_api_class_name"); |
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273 | Result : constant chars_ptr := |
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274 | Get_API_Class_Name_Base (The_API, The_Class); |
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275 | ClassName : constant String := Value_Without_Exception (Result); |
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276 | begin |
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277 | Name := ClassName; |
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278 | end Get_API_Class_Name; |
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279 | |
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280 | procedure Get_Class_Information |
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281 | (The_API : in RTEMS.Unsigned32; |
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282 | The_Class : in RTEMS.Unsigned32; |
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283 | Info : out API_Class_Information; |
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284 | Result : out RTEMS.Status_Codes) |
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285 | is |
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286 | function Get_Class_Information_Base |
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287 | (The_API : RTEMS.Unsigned32; |
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288 | The_Class : RTEMS.Unsigned32; |
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289 | Info : access API_Class_Information) |
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290 | return RTEMS.Status_Codes; |
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291 | pragma Import |
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292 | (C, |
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293 | Get_Class_Information_Base, |
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294 | "rtems_object_get_class_information"); |
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295 | TmpInfo : aliased API_Class_Information; |
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296 | begin |
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297 | Result := |
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298 | Get_Class_Information_Base |
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299 | (The_API, |
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300 | The_Class, |
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301 | TmpInfo'Access); |
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302 | Info := TmpInfo; |
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303 | end Get_Class_Information; |
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304 | |
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305 | end RTEMS.Object; |
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