basic_example2.c

RT-LAB分布式实时仿真平台下API函数的调用例程

/****************************************************************************

		Example using RT-LAB API.
		Gives the main step in order to load and execute a model.

*****************************************************************************/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

// Header for getcwd() is platform-dependent
#if defined(WIN32)
	#include <direct.h>
#elif defined(__linux__)
	#include <unistd.h>
	#define _MAX_PATH 256
#endif
#include "OpalApi.h"

void PrintError(int rc, char *funcName);

int main(void)
{
	char modelName[_MAX_PATH] = "basic_example2.mdl";
	char modelPath[_MAX_PATH];
	char modelPathName[_MAX_PATH*2];
#if defined(WIN32)
	char relativePath[] = "\\..\\models\\simulink\\";
#elif defined(__linux__)
	char relativePath[] = "/../models/simulink/";
#endif

	OP_API_INSTANCE_ID instId;
	double timeFactor;
	int					rc;
	unsigned short		realTimeMode;

	if (NULL != getcwd(modelPath, sizeof(modelPath))
	  && (strlen(modelPath) + strlen(relativePath) < _MAX_PATH))
	{
		strcat(modelPath, relativePath);
	}
	else
	{
		PrintError(0, "Invalid path");
		return 1;
	}

	// Set current model
	strcpy(modelPathName, modelPath);
	strcat(modelPathName, modelName);
	rc = OpalSetCurrentModel(modelPathName, NULL);
    if(EOK != rc)
	{
		PrintError(rc, "OpalSetCurrentModel");
		return(rc);
	}
    printf("- Setting of model '%s' is completed.\n", modelName);
	
	// Load the model
	timeFactor = 1.0;
	realTimeMode = 2;
	rc = OpalLoad(realTimeMode, &instId, timeFactor);
	if(EOK != rc)
	{
		PrintError(rc, "OpalLoad");
		return(rc);
	}
	printf("- Model %s is loaded.\n", modelName);
	
	// Execute the model
	rc = OpalExecute(timeFactor);
	if(EOK != rc)
	{
		PrintError(rc, "OpalExecute");
		return(rc);
	}
	printf("- Model %s is executed.\n", modelName);

	// Reset the model
	rc = OpalReset();
	if(EOK != rc)
	{
		PrintError(rc, "OpalReset");
		return(rc);
	}
	printf("- Model %s is reset.\n", modelName);
	
	// Disconnect from the model
	OpalDisconnect();
	printf("- Model %s is disconnected.\n", modelName);

	return 0;
}


void PrintError(int rc, char *funcName)
{
	char			buf[512];
	unsigned short	len;

	OpalGetLastErrMsg(buf, sizeof(buf), &len);
	printf("Error %s (code %d) from %s\n", buf, rc, funcName);
}