mirror of
https://github.com/vlang/v.git
synced 2023-08-10 21:13:21 +03:00
59 lines
1.1 KiB
V
59 lines
1.1 KiB
V
module os
|
|
|
|
#include <signal.h>
|
|
|
|
// os.Signal - enumerate possible POSIX signals and
|
|
// their integer codes.
|
|
// NB: the integer codes are given here explicitly,
|
|
// to make it easier to lookup, without needing to
|
|
// consult man pages / signal.h .
|
|
|
|
pub enum Signal {
|
|
hup = 1
|
|
int = 2
|
|
quit = 3
|
|
ill = 4
|
|
trap = 5
|
|
abrt = 6
|
|
bus = 7
|
|
fpe = 8
|
|
kill = 9
|
|
usr1 = 10
|
|
segv = 11
|
|
usr2 = 12
|
|
pipe = 13
|
|
alrm = 14
|
|
term = 15
|
|
stkflt = 16
|
|
chld = 17
|
|
cont = 18
|
|
stop = 19
|
|
tstp = 20
|
|
ttin = 21
|
|
ttou = 22
|
|
urg = 23
|
|
xcpu = 24
|
|
xfsz = 25
|
|
vtalrm = 26
|
|
prof = 27
|
|
winch = 28
|
|
poll = 29
|
|
pwr = 30
|
|
sys = 31
|
|
}
|
|
|
|
type SignalHandler = fn (Signal)
|
|
|
|
fn C.signal(signal int, handlercb SignalHandler) voidptr
|
|
|
|
// signal will assign `handler` callback to be called when `signum` signal is received.
|
|
pub fn signal_opt(signum Signal, handler SignalHandler) ?SignalHandler {
|
|
C.errno = 0
|
|
prev_handler := C.signal(int(signum), handler)
|
|
if prev_handler == C.SIG_ERR {
|
|
// errno isn't correctly set on Windows, but EINVAL is this only possible value it can take anyway
|
|
return error_with_code(posix_get_error_msg(C.EINVAL), C.EINVAL)
|
|
}
|
|
return SignalHandler(prev_handler)
|
|
}
|