/*
* The main program to "drive" the pipeline...
*/
int main (int argc, char *argv[])
{
pipe_t my_pipe;
long value, result;
int status;
char line[128];
pipe_create (&my_pipe, 10);
printf ("Enter integer values, or \"=\" for next result\n");
while (1) {
printf ("Data> ");
if (fgets (line, sizeof (line), stdin) == NULL) exit (0);
if (strlen (line) <= 1) continue;
if (strlen (line) <= 2 && line[0] == '=') {
if (pipe_result (&my_pipe, &result))
printf ("Result is %ld\n", result);
else
printf ("Pipe is empty\n");
} else {
if (sscanf (line, "%ld", &value) < 1)
fprintf (stderr, "Enter an integer value\n");
else
pipe_start (&my_pipe, value);
}
}
}
int main(int argc, char *argv[]) {
pipe_t pipe;
int value, result;
char line[128];
pipe_create(&pipe, 2);
printf("Enter inter value, or '=' for next result\n");
while (1) {
printf("Data> ");
E_TEST(NULL, fgets(line, sizeof(line), stdin));
if (strlen(line) <= 1) continue;
if (strlen(line) <= 2 && line[0] == '=') {
if (pipe_result(&pipe, &result))
printf("Result is %d\n", result);
else
printf("Pipe is empty\n");
} else {
if (sscanf(line, "%d", &value) < 1)
fprintf(stderr, "Enter an integer value\n");
else
pipe_start(&pipe, value);
}
}
return 0 ;
}
int main()
{
pipe_t mypipe;
long value, result;
int status, len;
char line[128];
stage_t *stage, *stage_next;
pipe_create(&mypipe, 10);
printf("Enter integer value, or \"=\" for result, enter quit to leave\n");
while(1)
{
printf("Data > ");
if (fgets(line, sizeof line, stdin) == NULL || my_strcmp("quit", line))
break;
len = strlen(line);
if (len <= 1)
continue;
if (len <= 2 && line[0] == '=')
{
if (pipe_result(&mypipe, &result))
printf("result is %ld\n", result);
else
printf("pipe is empty\n");
}
else
{
status = sscanf(line, "%ld", &value);
if (status < 1)
printf("please enter integer\n");
else
pipe_start(&mypipe, value);
}
}
for (stage = mypipe.head; stage != NULL;)
{
stage_next = stage->next;
free(stage);
printf("free stage\n");
stage = stage_next;
}
printf("end of pipe\n");
}
