int main(){
//int nr;
unsigned char inport = 0;
unsigned char outport = 3;
srand(time(0));
printport(outport, inport);
while (1){
inport = random_inport();
if(inport & (1 << 3)){
if(outport == 192){
printport(outport, inport);
outport = 129;
}
if(outport == 129){
printport(outport,inport);
outport= 3;
}
printport(outport, inport);
outport = outport << 1;
}
f_delay(5);
}
return(0);
}
char*
printrules(void)
{
int i;
char *s;
s = nil;
for(i=0; i<nvars; i++)
s = concat(s, printvar(&vars[i]));
for(i=0; i<nports; i++)
s = concat(s, printport(ports[i]));
s = concat(s, "\n");
for(i=0; rules[i]; i++)
s = concat(s, printrule(rules[i]));
return s;
}
int
main(int argc, char *argv[])
{
FILE * f;
char * line;
size_t linelen;
PORT ** pp; /* Array of pointers to PORTs */
PORT * tmp;
size_t pplen; /* Allocated size of array */
size_t i;
if (argc != 2)
usage();
if ((f = fopen(argv[1], "r")) == NULL)
err(1, "fopen(%s)", argv[1]);
pplen = 1024;
if ((pp = malloc(pplen * sizeof(PORT *))) == NULL)
err(1, "malloc(pp)");
/*
* 1. Suck in all the data, splitting into fields.
*/
for(i = 0; (line = fgetln(f, &linelen)) != NULL; i++) {
if (line[linelen - 1] != '\n')
errx(1, "Unterminated line encountered");
line[linelen - 1] = 0;
/* Enlarge array if needed */
if (i >= pplen) {
pplen *= 2;
if ((pp = realloc(pp, pplen * sizeof(PORT *))) == NULL)
err(1, "realloc(pp)");
}
pp[i] = portify(line);
}
/* Reallocate to the correct size */
pplen = i;
if ((pp = realloc(pp, pplen * sizeof(PORT *))) == NULL)
err(1, "realloc(pp)");
/* Make sure we actually reached the EOF */
if (!feof(f))
err(1, "fgetln(%s)", argv[1]);
/* Close the describes file */
if (fclose(f) != 0)
err(1, "fclose(%s)", argv[1]);
/*
* 1a. If there are no ports, there is no INDEX.
*/
if (pplen == 0)
return 0;
/*
* 2. Sort the ports according to port directory.
*/
for (i = pplen; i > 0; i--)
heapifyports(pp, pplen, i - 1); /* Build a heap */
for (i = pplen - 1; i > 0; i--) {
tmp = pp[0]; /* Extract elements */
pp[0] = pp[i];
pp[i] = tmp;
heapifyports(pp, i, 0); /* And re-heapify */
}
/*
* 3. Using a binary search, translate each dependency from a
* port directory name into a pointer to a port.
*/
for (i = 0; i < pplen; i++)
translateport(pp, pplen, pp[i]);
/*
* 4. Recursively follow dependencies, expanding the lists of
* pointers as needed (using realloc).
*/
for (i = 0; i < pplen; i++)
recurse(pp[i]);
/*
* 5. Iterate through the ports, printing them out (remembering
* to list the dependent ports in alphabetical order).
*/
for (i = 0; i < pplen; i++)
printport(pp[i]);
return 0;
}
