int main()
{
#ifdef EMULATION
emu_init();
#endif
irq_setmask(0);
irq_enable(1);
uart_async_init();
banner();
brd_init();
cpustats_init();
time_init();
mem_init();
vga_init();
snd_init();
pfpu_init();
tmu_init();
renderer_init();
apipe_init();
rpipe_init();
slowout_init();
hdlcd_init();
ui_init();
shell_init();
while(1) {
if(readchar_nonblock())
shell_input(readchar());
apipe_service();
rpipe_service();
#ifdef EMULATION
emu_service();
#endif
}
return 0;
}
int
main(int argc, char **argv)
{
bool force_ascii = false;
int delay = 500;
int opt;
while ((opt = getopt(argc, argv, "ad:h")) != -1) {
switch (opt) {
case 'a':
force_ascii = true;
break;
case 'd':
{
char *end;
float val = strtof(optarg, &end);
if (*end) {
fprintf(stderr, "Delay argument (-d) requires "
"a number\n");
exit(2);
}
delay = 1000 * val;
break;
}
default:
fprintf(stderr, "Usage: %s [-a] [-d delay]\n", argv[0]);
if (opt == 'h') {
fprintf(stderr,
"\n"
"Display CPU usage as a bar chart.\n"
"\n"
"Options:\n"
" -a Use ASCII-only bars (instead of Unicode)\n"
" -d SECS Specify delay between updates (decimals accepted)\n"
"\n"
"If your bars look funky, use -a or specify LANG=C.\n"
"\n"
"For kernels prior to 2.6.37, using a small delay on a large system can\n"
"induce significant system time overhead.\n");
exit(0);
}
exit(2);
}
}
if (optind < argc) {
fprintf(stderr, "Unexpected arguments\n");
exit(2);
}
struct sigaction sa = {
.sa_handler = on_sigint
};
sigaction(SIGINT, &sa, NULL);
cpustats_init();
term_init();
ui_init(force_ascii);
struct cpustats *before = cpustats_alloc(),
*after = cpustats_alloc(),
*delta = cpustats_alloc(),
*prevLayout = cpustats_alloc();
cpustats_read(before);
cpustats_subtract(prevLayout, before, before);
ui_layout(prevLayout);
fflush(stdout);
while (!need_exit) {
// Sleep or take input
struct pollfd pollfd = {
.fd = 0,
.events = POLLIN
};
if (poll(&pollfd, 1, delay) < 0 && errno != EINTR)
epanic("poll failed");
if (pollfd.revents & POLLIN) {
char ch = 0;
if (read(0, &ch, 1) < 0)
epanic("read failed");
if (ch == 'q')
break;
}
// Get new statistics
cpustats_read(after);
cpustats_subtract(delta, after, before);
// Recompute the layout if necessary
if (term_check_resize() || !cpustats_sets_equal(delta, prevLayout))
ui_layout(delta);
// Show the load average
float loadavg[3];
cpustats_loadavg(loadavg);
ui_show_load(loadavg);
if (delta->real) {
ui_compute_bars(delta);
ui_show_bars();
}
// Done updating UI
fflush(stdout);
SWAP(before, after);
SWAP(delta, prevLayout);
}
return 0;
}
