1 | /* |
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2 | ------------------------------------------------------------------------ |
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3 | $Id$ |
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4 | ------------------------------------------------------------------------ |
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5 | |
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6 | COPYRIGHT (c) 1997 |
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7 | Objective Design Systems Ltd Pty (ODS) |
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8 | All rights reserved (R) Objective Design Systems Ltd Pty |
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9 | |
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10 | The license and distribution terms for this file may be found in the |
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11 | file LICENSE in this distribution or at |
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12 | http://www.OARcorp.com/rtems/license.html. |
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13 | |
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14 | ------------------------------------------------------------------------ |
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15 | |
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16 | See header file. |
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17 | |
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18 | ------------------------------------------------------------------------ |
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19 | */ |
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20 | |
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21 | #include <string.h> |
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22 | #include <rtems++/rtemsMessageQueue.h> |
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23 | |
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24 | /* ---- |
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25 | rtemsMessageQueue |
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26 | */ |
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27 | |
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28 | rtemsMessageQueue::rtemsMessageQueue(const char* mqname, |
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29 | const rtems_unsigned32 count, |
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30 | const rtems_unsigned32 max_message_size, |
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31 | const WaitMode wait_mode, |
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32 | const Scope scope) |
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33 | : name(0), |
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34 | owner(true), |
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35 | id(0) |
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36 | { |
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37 | strcpy(name_str, "NOID"); |
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38 | create(mqname, count, max_message_size, wait_mode, scope); |
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39 | } |
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40 | |
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41 | rtemsMessageQueue::rtemsMessageQueue(const char *mqname, |
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42 | const rtems_unsigned32 node) |
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43 | : name(0), |
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44 | owner(false), |
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45 | id(0) |
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46 | { |
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47 | strcpy(name_str, "NOID"); |
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48 | connect(mqname, node); |
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49 | } |
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50 | |
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51 | rtemsMessageQueue::rtemsMessageQueue(const rtemsMessageQueue& message_queue) |
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52 | : name(0), |
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53 | owner(false), |
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54 | id(0) |
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55 | { |
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56 | name = message_queue.name; |
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57 | strcpy(name_str, message_queue.name_str); |
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58 | id = message_queue.id; |
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59 | } |
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60 | |
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61 | rtemsMessageQueue::rtemsMessageQueue() |
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62 | : name(0), |
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63 | owner(false), |
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64 | id(0) |
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65 | { |
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66 | strcpy(name_str, "NOID"); |
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67 | } |
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68 | |
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69 | rtemsMessageQueue::~rtemsMessageQueue() |
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70 | { |
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71 | destroy(); |
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72 | } |
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73 | |
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74 | void rtemsMessageQueue::make_invalid() |
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75 | { |
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76 | strcpy(name_str, "NOID"); |
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77 | name = 0; |
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78 | id = 0; |
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79 | owner = false; |
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80 | } |
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81 | |
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82 | const rtems_status_code rtemsMessageQueue::create(const char* mqname, |
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83 | const rtems_unsigned32 count, |
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84 | const rtems_unsigned32 max_message_size, |
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85 | const WaitMode wait_mode, |
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86 | const Scope scope) |
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87 | { |
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88 | if (id) |
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89 | return set_status_code(RTEMS_ILLEGAL_ON_SELF); |
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90 | |
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91 | owner = true; |
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92 | |
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93 | strcpy(name_str, " "); |
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94 | for (int c = 0; (c < 4) && (mqname[c] != '\0'); c++) |
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95 | name_str[c] = mqname[c]; |
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96 | name = rtems_build_name(name_str[0], |
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97 | name_str[1], |
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98 | name_str[2], |
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99 | name_str[3]); |
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100 | |
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101 | set_status_code(rtems_message_queue_create(name, |
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102 | count, |
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103 | max_message_size, |
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104 | scope | wait_mode, |
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105 | &id)); |
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106 | |
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107 | if (unsuccessful()) |
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108 | { |
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109 | make_invalid(); |
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110 | } |
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111 | |
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112 | return last_status_code(); |
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113 | } |
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114 | |
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115 | const rtems_status_code rtemsMessageQueue::destroy() |
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116 | { |
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117 | if (id && owner) |
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118 | { |
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119 | set_status_code(rtems_message_queue_delete(id)); |
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120 | make_invalid(); |
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121 | } |
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122 | else |
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123 | set_status_code(RTEMS_NOT_OWNER_OF_RESOURCE); |
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124 | |
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125 | return last_status_code(); |
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126 | } |
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127 | |
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128 | const rtemsMessageQueue& rtemsMessageQueue::operator=(const rtemsMessageQueue& message_queue) |
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129 | { |
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130 | if (!owner) |
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131 | { |
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132 | name = message_queue.name; |
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133 | strcpy(name_str, message_queue.name_str); |
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134 | id = message_queue.id; |
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135 | } |
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136 | |
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137 | return *this; |
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138 | } |
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139 | |
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140 | const rtems_status_code rtemsMessageQueue::connect(const char *mqname, |
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141 | const rtems_unsigned32 node) |
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142 | { |
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143 | if (id && owner) |
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144 | return set_status_code(RTEMS_UNSATISFIED); |
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145 | |
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146 | // change state to not owner |
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147 | owner = false; |
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148 | |
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149 | strcpy(name_str, " "); |
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150 | for (int c = 0; (c < 4) && (mqname[c] != '\0'); c++) |
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151 | name_str[c] = mqname[c]; |
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152 | name = rtems_build_name(name_str[0], |
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153 | name_str[1], |
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154 | name_str[2], |
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155 | name_str[3]); |
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156 | |
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157 | set_status_code(rtems_message_queue_ident(name, node, &id)); |
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158 | |
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159 | if (unsuccessful()) |
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160 | { |
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161 | make_invalid(); |
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162 | } |
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163 | |
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164 | return last_status_code(); |
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165 | } |
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