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std.os: improve sigaction test coverage.

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This commit is contained in:
Ryan Schneider 2022-11-03 08:43:56 -07:00
parent 7f1f2e653d
commit a68b27c252
1 changed files with 25 additions and 11 deletions
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36
lib/std/os/test.zig
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@ -739,8 +739,6 @@ test "shutdown socket" {
os.closeSocket(sock);
}
var signal_test_handler_called_count: u32 = 0;
test "sigaction" {
if (native_os == .wasi or native_os == .windows)
return error.SkipZigTest;
@ -750,17 +748,19 @@ test "sigaction" {
return error.SkipZigTest;
const S = struct {
var handler_called_count: u32 = 0;
fn handler(sig: i32, info: *const os.siginfo_t, ctx_ptr: ?*const anyopaque) callconv(.C) void {
_ = ctx_ptr;
// Check that we received the correct signal.
switch (native_os) {
.netbsd => {
if (sig == os.SIG.USR1 and sig == info.info.signo)
signal_test_handler_called_count += 1;
handler_called_count += 1;
},
else => {
if (sig == os.SIG.USR1 and sig == info.signo)
signal_test_handler_called_count += 1;
handler_called_count += 1;
},
}
}
@ -774,25 +774,39 @@ test "sigaction" {
.flags = os.SA.SIGINFO | os.SA.RESETHAND,
};
var old_sa: os.Sigaction = undefined;
// Install the new signal handler.
try os.sigaction(os.SIG.USR1, &sa, null);
// Check that we can read it back correctly.
try os.sigaction(os.SIG.USR1, null, &old_sa);
try testing.expectEqual(actual_handler, old_sa.handler.sigaction.?);
try testing.expect((old_sa.flags & os.SA.SIGINFO) != 0);
// Invoke the handler.
try os.raise(os.SIG.USR1);
try testing.expect(signal_test_handler_called_count == 1);
// Check if the handler has been correctly reset to SIG_DFL
try testing.expect(S.handler_called_count == 1);
// Check if passing RESETHAND correctly reset the handler to SIG_DFL
try os.sigaction(os.SIG.USR1, null, &old_sa);
try testing.expectEqual(os.SIG.DFL, old_sa.handler.handler);
// ensure we can ignore a signal
sa.handler = .{ .handler = os.SIG.IGN };
// Reinstall the signal w/o RESETHAND and re-raise
sa.flags = os.SA.SIGINFO;
try os.sigaction(os.SIG.USR1, &sa, null);
// and ensure it is now ignored
try os.raise(os.SIG.USR1);
try testing.expect(signal_test_handler_called_count == 1);
// and that ignored state is returned when querying
try testing.expect(S.handler_called_count == 2);
// Now set the signal to ignored
sa.handler = .{ .handler = os.SIG.IGN };
sa.flags = 0;
try os.sigaction(os.SIG.USR1, &sa, null);
// Re-raise to ensure handler is actually ignored
try os.raise(os.SIG.USR1);
try testing.expect(S.handler_called_count == 2);
// Ensure that ignored state is returned when querying
try os.sigaction(os.SIG.USR1, null, &old_sa);
try testing.expectEqual(os.SIG.IGN, old_sa.handler.handler.?);
}