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470921fe46
This is a reland of f58f69f66bacefb0aaf78e91b462b5db97cea391 The whitebox dawn_end2end_tests are updated to link statically against libdawn_native. This is required because the test link against and use libdawn_native as sources. It is an error with MSVC to both import and export symbols from libdawn_native. Original change's description: > fuzzing: Add supportsErrorInjection option to DawnWireServerFuzzer > > This option will be used by backends that support error injection so > that errors can be injected into a "clean" corpus to generate a seed > corpus with good examples of injected error conditions. > > Bug: dawn:295 > Change-Id: I837acdde6dd4274adb56edf8e4307427f8d6333b > Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14681 > Reviewed-by: Corentin Wallez <cwallez@chromium.org> > Commit-Queue: Austin Eng <enga@chromium.org> Bug: dawn:295 Change-Id: Ifa092d28aa7ac57cfb197aa4daeb8408f8036d4a Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14820 Reviewed-by: Kai Ninomiya <kainino@chromium.org> Commit-Queue: Austin Eng <enga@chromium.org>
71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
// Copyright 2019 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "dawn_native/ErrorInjector.h"
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#include "common/Assert.h"
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#include "dawn_native/DawnNative.h"
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namespace dawn_native {
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namespace {
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bool sIsEnabled = false;
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uint64_t sNextIndex = 0;
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uint64_t sInjectedFailureIndex = 0;
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bool sHasPendingInjectedError = false;
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} // anonymous namespace
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void EnableErrorInjector() {
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sIsEnabled = true;
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}
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void DisableErrorInjector() {
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sIsEnabled = false;
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}
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void ClearErrorInjector() {
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sNextIndex = 0;
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sHasPendingInjectedError = false;
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}
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bool ErrorInjectorEnabled() {
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return sIsEnabled;
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}
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uint64_t AcquireErrorInjectorCallCount() {
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uint64_t count = sNextIndex;
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ClearErrorInjector();
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return count;
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}
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bool ShouldInjectError() {
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uint64_t index = sNextIndex++;
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if (sHasPendingInjectedError && index == sInjectedFailureIndex) {
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sHasPendingInjectedError = false;
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return true;
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}
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return false;
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}
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void InjectErrorAt(uint64_t index) {
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// Only one error can be injected at a time.
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ASSERT(!sHasPendingInjectedError);
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sInjectedFailureIndex = index;
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sHasPendingInjectedError = true;
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}
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} // namespace dawn_native
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