mess4.htm

来自「ST20 Embedded Toolset R2.0.5用于开发基于ST20芯片」· HTM 代码 · 共 57 行

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<title>8.3 Using message queues</title>

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<h2>
  <a name="1204575"> </a><font color="#003366"  face="Verdana, Arial, Helvetica, sans-serif">8.3 	 Using message queues</font>
</h2><hr>


<p>
  <a name="1204576"> </a><font size=2  face="Verdana, Arial, Helvetica, sans-serif">Initially all the messages are on the free queue. The user allocates free message buffers by calling either of the following functions, which can then be filled in with the required data:</font>
</p>


<a name="1206006"> </a><font size=2 face=Courier><strong>void* message_claim(<font  face="Verdana, Arial, Helvetica, sans-serif"><b> </b></font>message_queue_t* <font size=2 face=Courier><strong><em>queue</em></strong></font> );<br><br></strong></font>



<a name="1206928"> </a><font size=2 face=Courier><strong>void* message_claim_timeout( message_queue_t* <font size=2 face=Courier><strong><em>queue<br></em></strong></font>

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