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7487e5ea8b
A cleanup round of our FFI tests. Change-Id: I3883b9d14785c759c7129c072c9588bfa5a3fba0 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/214802 Reviewed-by: Clement Skau <cskau@google.com> Commit-Queue: Daco Harkes <dacoharkes@google.com>
64 lines
2.1 KiB
Dart
64 lines
2.1 KiB
Dart
// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// @dart = 2.9
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// SharedObjects=ffi_test_functions
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import 'dart:ffi';
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import 'dart:io';
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import 'package:expect/expect.dart';
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import 'callback_tests_utils.dart';
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import 'dylib_utils.dart';
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DynamicLibrary ffiTestFunctions = dlopenPlatformSpecific("ffi_test_functions");
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testLeafCall() {
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// Regular calls should transition generated -> native.
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final isThreadInGenerated = ffiTestFunctions
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.lookupFunction<Int8 Function(), int Function()>("IsThreadInGenerated");
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Expect.equals(0, isThreadInGenerated());
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// Leaf calls should remain in generated state.
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final isThreadInGeneratedLeaf = ffiTestFunctions
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.lookupFunction<Int8 Function(), int Function()>("IsThreadInGenerated",
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isLeaf: true);
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Expect.equals(1, isThreadInGeneratedLeaf());
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}
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testLeafCallApi() {
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// Note: This will only crash as expected in debug build mode. In other modes
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// it's effectively skip.
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final f = ffiTestFunctions.lookupFunction<Void Function(), void Function()>(
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"TestLeafCallApi",
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isLeaf: true);
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// Calling Dart_.. API is unsafe from leaf calls since we explicitly haven't
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// made the generated -> native transition.
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f();
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}
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void nop() {}
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testCallbackLeaf() {
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// This should crash with "expected: T->IsAtSafepoint()", since it's unsafe to
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// do callbacks from leaf calls (otherwise they wouldn't be leaf calls).
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// Note: This will only crash as expected in debug build mode. In other modes
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// it's effectively skip.
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CallbackTest("CallbackLeaf", Pointer.fromFunction<Void Function()>(nop),
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isLeaf: true)
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.run();
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}
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main() {
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testLeafCall(); //# 01: ok
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// These tests terminate the process after successful completion, so we have
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// to run them separately.
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//
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// Since they use signal handlers they only run on Linux.
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if (Platform.isLinux && !const bool.fromEnvironment("dart.vm.product")) {
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testLeafCallApi(); //# 02: ok
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testCallbackLeaf(); //# 03: ok
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}
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}
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