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65 lines
1.3 KiB
V
65 lines
1.3 KiB
V
module os
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#include <signal.h>
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// os.Signal - enumerate possible POSIX signals and
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// their integer codes.
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// NB: the integer codes are given here explicitly,
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// to make it easier to lookup, without needing to
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// consult man pages / signal.h .
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pub enum Signal {
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hup = 1
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int = 2
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quit = 3
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ill = 4
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trap = 5
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abrt = 6
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bus = 7
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fpe = 8
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kill = 9
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usr1 = 10
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segv = 11
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usr2 = 12
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pipe = 13
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alrm = 14
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term = 15
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stkflt = 16
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chld = 17
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cont = 18
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stop = 19
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tstp = 20
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ttin = 21
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ttou = 22
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urg = 23
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xcpu = 24
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xfsz = 25
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vtalrm = 26
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prof = 27
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winch = 28
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poll = 29
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pwr = 30
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sys = 31
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}
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type SignalHandler = fn (Signal)
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fn C.signal(signal int, handlercb SignalHandler) voidptr
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[deprecated: 'use os.signal_opt() instead']
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[deprecated_after: '2021-06-18']
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pub fn signal(signum int, handler voidptr) voidptr {
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return voidptr(signal_opt(Signal(signum), handler) or { C.SIG_ERR })
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}
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// signal will assign `handler` callback to be called when `signum` signal is received.
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pub fn signal_opt(signum Signal, handler SignalHandler) ?SignalHandler {
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C.errno = 0
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prev_handler := C.signal(int(signum), handler)
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if prev_handler == C.SIG_ERR {
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// errno isn't correctly set on Windows, but EINVAL is this only possible value it can take anyway
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return error_with_code(posix_get_error_msg(C.EINVAL), C.EINVAL)
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}
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return SignalHandler(prev_handler)
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}
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