Das deutsche Python-Forum

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#include <Python.h>
#include <time.h>

int test()
{
    PyObject *pName, *pModule, *pFunc;
    PyObject *pArgs, *pValue;
    int i,test; 
    double array[2];

    array[0] = 4.2341234;
    array[1] = 3.3;
    
    // Initialisierung
    Py_Initialize();
    
    // damit python im richtigen verzecihniss sucht
    PyRun_SimpleString("import sys");
    PyRun_SimpleString("sys.path.insert(0, '')");
    
    /* Programm / Modul Laden */
    pName = PyString_FromString("multi");
    
    pModule = PyImport_Import(pName);
    Py_DECREF(pName);

    /* Funktion laden und ausfuehren */
    if (pModule != NULL) {
        pFunc = PyObject_GetAttrString(pModule,"multi");
        
        
        /* falls ausfuehrbar Programm starten */
        if (pFunc && PyCallable_Check(pFunc)) {
            
            /* Tuple mit 2 eintraegen fuer uebergabe nach Pyhton erstellen*/ 
            pArgs = PyTuple_New(2);
            
            /* Entraege abspeichern */
            for (i = 0; i <2 ; ++i) {
                pValue = PyFloat_FromDouble(array[i]);
                if (!pValue) {
                    Py_DECREF(pArgs);
                    Py_DECREF(pModule);
                    fprintf(stderr, "Cannot convert argument\n");
                    return 1;
                }
                /* Variable im tuple pArgs abspeichern: */
                PyTuple_SetItem(pArgs, i, pValue);
            }

            /*Funktion aufrufen */
            pValue = PyObject_CallObject(pFunc, pArgs);

        
            Py_DECREF(pArgs);
            if (pValue != NULL) {
                /*printf("Result of call: %f \n", PyFloat_AsDouble(pValue));*/
                Py_DECREF(pValue);
            }
            else {
                Py_DECREF(pFunc);
                Py_DECREF(pModule);
                PyErr_Print();
                fprintf(stderr,"Call failed\n");
                return 1;
            }
        }
        else {
            if (PyErr_Occurred())
                PyErr_Print();
            fprintf(stderr, "Cannot find function \n");
        }
        Py_XDECREF(pFunc);
        Py_DECREF(pModule);
    }
    else {
        PyErr_Print();
        fprintf(stderr, "Failed to load ");
        return 1;
    }
    Py_Finalize();
    return 0;
}


int main(void){
    int i,j,value;
    time_t begin,end;
    double timediff;

    for(i=0;i<=20000;i++)
    {
        time(&begin);
        for(j=0;j<=200;j++){
            value = test();
        }     
        time(&end);
        timediff = difftime(end,begin);
        printf ("\n Zeit in Sekunden war %f",timediff);
      
    }
    return 0;
    
}

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def multi(a,b):
    #print "Will compute", a, "times", b
    c = 0
    c = a * b
    return c

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COMPILER = gcc 
LINKER   = gcc 
CFLAGS   = -c 
LFLAGS   = -lpython2.4 -lm -L/usr/lib/python2.4/config
INCLUDE  = -I/usr/include/python2.4

COMMAND = wurst
SOURCES = main.c 

OBJFILES = $(SOURCES:.c=.o)

# --------

# mach aus dem c ein o
.c.o: $(SOURCES)
	$(COMPILER) $(CFLAGS) $(INCLUDE) -o $@ $< 

# linke die o zu einem programm
all: $(OBJFILES)
	$(LINKER) $(LFLAGS) $(OBJFILES) -o $(COMMAND) 

# mach sauber
clean:
	rm $(OBJFILES)

# mach richtig sauber
distclean: clean
	rm $(COMMAND)

Code: Alles auswählen

return a*b