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29: An Open Source, Royalty-free,<br>
30: Real-time Operating System
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39: <a href="http://prex.sourceforge.net/">Prex Home</a> >
40: <a href="index.html">Document Index</a> >
41: Sample Codes
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43: <tr><td class="pad" colspan="2" style="vertical-align: top;"></td></tr>
44:
45: <tr>
46: <td id="doc" style="vertical-align: top;">
47: <h1>Sample Codes</h1>
48:
49: <i>Version 1.0, 2005/09/01</i>
50:
51: <h3>Table of Contents</h3>
52: <ul>
53: <li><a href="#run">Running a new thread</a></li>
54: <li><a href="#ptmr">Periodic timer</a></li>
55: </ul>
56: <br>
57:
58: <h2 id="run">Running a new thread</h2>
59: <p>
60: This is a sample to create and run a new thread in the same task.
61: </p>
62: <pre>
63: int thread_run(void *start, void *stack, thread_t *th)
64: {
65: thread_t t;
66: int err;
67:
68: err = thread_create(task_self(), &t);
69: if (err)
70: return err;
71:
72: err = thread_load(t, start, stack);
73: if (err)
74: return err;
75:
76: err = thread_resume(t);
77: if (err)
78: return err;
79:
80: *th = t;
81: return 0;
82: }
83: </pre>
84:
85:
86: <h2 id="ptmr">Periodic timer</h2>
87: <p>
88: This is a sample to show a message per 100msec starting after 5sec.
89: </p>
90: <pre>
91: int main()
92: {
93: int count = 0;
94:
95: sys_log("periodic timer test program\n");
96:
97: /* Setup timer */
98: timer_periodic(thread_self(), 5000, 100);
99:
100: while (count++ < 5) {
101: timer_waitperiod();
102: sys_log("Hello!\n");
103: }
104:
105: /* Cancel timer */
106: timer_periodic(thread_self(), 0, 0);
107: return 0;
108: }
109: </pre>
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118: Copyright© 2005-2007 Kohsuke Ohtani
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