root / prex-0.9.0 / usr / test / ipc / ipc.c @ 03e9c04a
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1 | 03e9c04a | Brad Neuman | /*-
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2 | * Copyright (c) 2005, Kohsuke Ohtani
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3 | * All rights reserved.
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4 | *
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5 | * Redistribution and use in source and binary forms, with or without
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6 | * modification, are permitted provided that the following conditions
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7 | * are met:
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8 | * 1. Redistributions of source code must retain the above copyright
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9 | * notice, this list of conditions and the following disclaimer.
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10 | * 2. Redistributions in binary form must reproduce the above copyright
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11 | * notice, this list of conditions and the following disclaimer in the
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12 | * documentation and/or other materials provided with the distribution.
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13 | * 3. Neither the name of the author nor the names of any co-contributors
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14 | * may be used to endorse or promote products derived from this software
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15 | * without specific prior written permission.
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16 | *
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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27 | * SUCH DAMAGE.
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28 | */
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29 | |||
30 | /*
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31 | * ipc.c - IPC test program.
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32 | */
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33 | |||
34 | #include <sys/prex.h> |
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35 | #include <ipc/ipc.h> |
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36 | #include <stdio.h> |
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37 | |||
38 | static char stack[1024]; |
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39 | |||
40 | /*
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41 | * Run specified thread
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42 | */
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43 | static int |
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44 | thread_run(void (*start)(void), void *stack) |
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45 | { |
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46 | thread_t t; |
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47 | int error;
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48 | |||
49 | error = thread_create(task_self(), &t); |
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50 | if (error)
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51 | return error;
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52 | |||
53 | error = thread_load(t, start, stack); |
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54 | if (error)
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55 | return error;
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56 | |||
57 | error = thread_resume(t); |
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58 | if (error)
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59 | return error;
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60 | |||
61 | return 0; |
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62 | } |
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63 | |||
64 | /*
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65 | * Send thread
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66 | */
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67 | static void |
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68 | send_thread(void)
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69 | { |
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70 | struct msg msg;
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71 | object_t o1, o2; |
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72 | int error;
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73 | |||
74 | printf("Send thread is starting...\n");
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75 | |||
76 | /*
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77 | * Find objects.
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78 | */
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79 | error = object_lookup("test-A", &o1);
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80 | error = object_lookup("test-B", &o2);
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81 | |||
82 | /*
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83 | * Wait a sec.
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84 | */
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85 | timer_sleep(1000, 0); |
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86 | |||
87 | /*
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88 | * Delete object A.
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89 | */
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90 | printf("Delete object A\n");
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91 | object_destroy(o1); |
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92 | |||
93 | /*
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94 | * Wait a sec.
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95 | */
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96 | timer_sleep(1000, 0); |
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97 | |||
98 | /*
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99 | * Send message to object B.
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100 | */
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101 | printf("Send message to object B.\n");
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102 | msg_send(o2, &msg, sizeof(msg));
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103 | |||
104 | printf("Send completed.\n");
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105 | for (;;) ;
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106 | } |
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107 | |||
108 | int
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109 | main(int argc, char *argv[]) |
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110 | { |
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111 | object_t o1, o2, o3; |
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112 | struct msg msg;
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113 | int error;
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114 | |||
115 | printf("IPC test program\n");
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116 | |||
117 | /*
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118 | * Create two objects.
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119 | */
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120 | error = object_create("test-A", &o1);
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121 | error = object_create("test-B", &o2);
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122 | |||
123 | /*
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124 | * Create existing object.
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125 | * This must be error.
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126 | */
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127 | error = object_create("test-B", &o3);
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128 | if (error == 0) |
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129 | panic("Oops! object exist...");
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130 | |||
131 | /*
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132 | * Start sender thread.
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133 | */
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134 | error = thread_run(send_thread, stack + 1024);
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135 | if (error)
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136 | panic("failed to run thread");
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137 | |||
138 | /*
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139 | * Wait message from non-existing object
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140 | * This must be error.
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141 | */
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142 | o3 = 0x12345678;
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143 | error = msg_receive(o3, &msg, sizeof(msg));
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144 | if (error == 0) |
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145 | panic("Oops! invalid object...");
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146 | |||
147 | /*
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148 | * Wait message from object 'A'. However, it will be failed
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149 | * because the sender thread will delete the object A.
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150 | */
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151 | printf("Wait message from object A\n");
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152 | error = msg_receive(o1, &msg, sizeof(msg));
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153 | if (error)
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154 | printf("Receive error!\n");
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155 | else {
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156 | printf("Rreceive ok!\n");
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157 | msg_reply(o1, &msg, sizeof(msg));
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158 | } |
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159 | |||
160 | /*
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161 | * Wait message from object 'B'.
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162 | */
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163 | printf("Wait message from object B\n");
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164 | error = msg_receive(o2, &msg, sizeof(msg));
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165 | if (error)
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166 | printf("Receive error!\n");
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167 | else {
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168 | printf("Receive ok!\n");
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169 | msg_reply(o2, &msg, sizeof(msg));
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170 | } |
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171 | |||
172 | printf("Test completed...\n");
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173 | return 0; |
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174 | } |