scoutos / prex-0.9.0 / usr / test / thread / thread.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 | * thread.c - test to run threads
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32 | */
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33 | |||
34 | #include <sys/prex.h> |
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35 | #include <stdio.h> |
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36 | |||
37 | static char stack[1024]; |
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38 | |||
39 | static thread_t
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40 | thread_run(void (*start)(void), char *stack) |
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41 | { |
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42 | thread_t t; |
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43 | int error;
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44 | |||
45 | if ((error = thread_create(task_self(), &t)) != 0) |
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46 | panic("thread_create() is failed");
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47 | |||
48 | if ((error = thread_load(t, start, stack)) != 0) |
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49 | panic("thread_load() is failed");
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50 | |||
51 | if ((error = thread_resume(t)) != 0) |
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52 | panic("thread_resume() is failed");
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53 | |||
54 | return t;
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55 | } |
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56 | |||
57 | static void |
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58 | test_thread(void)
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59 | { |
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60 | printf("test thread is starting...\n");
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61 | for (;;)
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62 | putchar('@');
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63 | } |
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64 | |||
65 | int
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66 | main(int argc, char *argv[]) |
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67 | { |
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68 | int error;
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69 | thread_t self, t; |
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70 | |||
71 | printf("Thread test program\n");
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72 | |||
73 | self = thread_self(); |
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74 | |||
75 | /*
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76 | * Create new thread
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77 | */
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78 | printf("Start test thread\n");
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79 | t = thread_run(test_thread, stack+1024);
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80 | |||
81 | /*
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82 | * Wait 1 sec
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83 | */
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84 | timer_sleep(3000, 0); |
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85 | |||
86 | /*
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87 | * Suspend test thread
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88 | */
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89 | printf("\nSuspend test thread\n");
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90 | error = thread_suspend(t); |
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91 | |||
92 | /*
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93 | * Wait 2 sec
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94 | */
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95 | timer_sleep(2000, 0); |
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96 | |||
97 | /*
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98 | * Resume test thread
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99 | */
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100 | printf("\nResume test thread\n");
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101 | error = thread_resume(t); |
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102 | |||
103 | /*
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104 | * Wait 100 msec
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105 | */
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106 | timer_sleep(100, 0); |
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107 | |||
108 | /*
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109 | * Suspend test thread
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110 | */
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111 | thread_suspend(t); |
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112 | |||
113 | /*
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114 | * Wait 2 sec
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115 | */
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116 | timer_sleep(2000, 0); |
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117 | |||
118 | /*
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119 | * Resume test thread
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120 | */
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121 | thread_resume(t); |
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122 | |||
123 | /*
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124 | * We can check this thread can run 10 times than test thread,
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125 | */
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126 | for (;;)
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127 | putchar('!');
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128 | |||
129 | return 0; |
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130 | } |