void dpr(node * u,int dep)
{
if(u == nil)
return;
h = max(dep,h);
dpr(u->L,dep+1);
ff(debug,"now:%d L:%d R:%d color:%d val:%d\n",u->val,u->L->val,u->R->val,u->color,u->val);
dpr(u->R,dep+1);
}
int
yproc_pid_stat(struct yproc_pid_stat *stat, int pid) {
int r, fd;
char buf[4096]; // this is large enough
if (unlikely(!stat))
return -EINVAL;
r = snprintf(buf, sizeof(buf), "/proc/%d/stat", pid);
if (unlikely(r >= sizeof(buf)))
return -EINVAL; // This is ABSOLUTELY UNEXPECTED!
if (unlikely(0 > (fd = open(buf, O_RDONLY))))
return -errno;
// Read file contents into buffer
if (unlikely(0 > (r = read(fd, buf, sizeof(buf) - 1)))) {
r = -errno;
goto close_fd;
}
buf[r] = 0; // trailing 0
dpr("raw string:%s", buf);
r = sscanf(buf, "%d (%[^)]) %c %d %d %d",
&stat->pid,
stat->tcomm,
&stat->state,
&stat->ppid,
&stat->pgid,
&stat->sid);
dpr("sscanf result: %d\n", r);
if (6 != r) {
// This is ABSOLUTELY UNEXPECTED! Kernel may be updated?
r = -EINVAL;
goto close_fd;
}
dpr("%d (%s) %c %d %d %d\n",
stat->pid,
stat->tcomm,
stat->state,
stat->ppid,
stat->pgid,
stat->sid);
r = 0; // mark as success
close_fd:
close(fd);
return r;
}
int main (int argc, char **argv) {
if(argc < 2)
return -1;
dpr("program started");
dpr("opening LEDs @ DEVICE");
dpr(DEVICE);
s = get_sign();
if (s == -1) {
printf("LEDs not found @ DEVICE. Failing...\n");
return -1;
}
tcgetattr(s, &options);
cfsetispeed(&options, BAUD);
cfsetospeed(&options, BAUD);
options.c_cflag &= ~PARENB;
options.c_cflag |= CSTOPB;
options.c_cflag &= ~CSIZE;
options.c_cflag |= CS8;
options.c_cflag |= (CLOCAL | CREAD);
tcsetattr(s, TCSANOW, &options);
int i = 0;
// Setup
unsigned char r;
unsigned char g;
unsigned char b;
for (i = 0 ; i < LEDCOUNT ; i++) {
switch (i % 3) {
case 0:
r = 255;
g = 0;
b = 0;
break;
case 1:
r = 0;
g = 255;
b = 0;
break;
case 2:
r = 0;
g = 0;
b = 255;
break;
default:
break;
}
colors[(i*3)] = r;
colors[((i*3) + 1)] = g;
colors[((i*3) + 2)] = b;
i++;
}
// GO
int runs = 0;
int n = 0;
while (runs < 10000) {
char buff[1];
ssize_t rc = read(s, buff, 1);
if (buff[0] == 'R')
{
printf("%c %c\n",buff[0], buff[0]);
char rc = 0;
//rc = (char)(256 * (rand() / (RAND_MAX + 1.0)));
for (i = 0 ; i < (LEDCOUNT) ; i++) {
int off = runs % LEDCOUNT;
if (i != off) {
r = colors[(i*3)];
g = colors[((i*3) + 1)];
b = colors[((i*3) + 2)];
} else {
r = 255;
g = 255;
b = 255;
}
printf("LED %2d: %4d %4d %4d\n",i,r,g,b);
p(r);
p(g);
p(b);
}
usleep(LINEDELAY);
runs++;
}
}
// Stop
close(s);
return 0;
}
