om.c

Vxworks的培训教程,大家分享下啊,

#include "pioLib.h"
#include "msgQLib.h"

/* Port C is actually hardwired to Port A.  By changing the state of
 * one of the first three channels of Port C, we changed the input to
 * Port A.
 */

STATUS flurbish (state)
	BOOL state;
	{
	return (pioSet (PORT_C, 0, state));
	}

STATUS dohickey (state)
	BOOL state;
	{
	return (pioSet (PORT_C, 1, state));
	}

STATUS nevester (state)
	BOOL state;
	{
	return (pioSet (PORT_C, 2, state));
	}


void monitorOM (msgQId, debug)
	MSG_Q_ID msgQId;
	int debug;
	{
	PIO_MSG_Q_DATA msgQData;
	int channel;	

	/* Initialize the PORT B channels to OFF */
	for (channel=0; channel<PIO_MAX_CHANNELS_PER_PORT; channel++)
		pioSet (PORT_B, channel, OFF);

	FOREVER 
		{
		if (msgQReceive (msgQId, (char *) &msgQData, sizeof (PIO_MSG_Q_DATA), 
						WAIT_FOREVER) == ERROR)
			{
			printf ("msgQReceive failed\n");
			return;
			}
		pioSet (PORT_B, msgQData.channel, msgQData.state);
#ifndef NDEBUG
		if (debug)
			printf ("port %d channel %d state %d time %d\n", msgQData.port,
					msgQData.channel, msgQData.state, msgQData.timeStamp);
#endif
		}
	}