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https://github.com/encounter/dawn-cmake.git
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0ecc48ecb7
Handle DeviceLostCallback once DeviceLost error occurs. Disallow any other commands or actions on device to happen after device has been lost. Bug: dawn:68 Change-Id: Icbbbadf278cae5e6213050d00439118789c863dc Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/12801 Commit-Queue: Natasha Lee <natlee@microsoft.com> Reviewed-by: Austin Eng <enga@chromium.org>
90 lines
4.5 KiB
C++
90 lines
4.5 KiB
C++
// Copyright 2018 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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#ifndef DAWNNATIVE_ERROR_H_
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#define DAWNNATIVE_ERROR_H_
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#include "common/Result.h"
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#include "dawn_native/ErrorData.h"
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#include <string>
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namespace dawn_native {
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enum class InternalErrorType : uint32_t { Validation, DeviceLost, Unimplemented, OutOfMemory };
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// MaybeError and ResultOrError are meant to be used as return value for function that are not
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// expected to, but might fail. The handling of error is potentially much slower than successes.
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using MaybeError = Result<void, ErrorData>;
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template <typename T>
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using ResultOrError = Result<T, ErrorData>;
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// Returning a success is done like so:
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// return {}; // for Error
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// return SomethingOfTypeT; // for ResultOrError<T>
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//
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// Returning an error is done via:
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// return DAWN_MAKE_ERROR(errorType, "My error message");
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//
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// but shorthand version for specific error types are preferred:
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// return DAWN_VALIDATION_ERROR("My error message");
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#define DAWN_MAKE_ERROR(TYPE, MESSAGE) \
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::dawn_native::ErrorData::Create(TYPE, MESSAGE, __FILE__, __func__, __LINE__)
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#define DAWN_VALIDATION_ERROR(MESSAGE) DAWN_MAKE_ERROR(InternalErrorType::Validation, MESSAGE)
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#define DAWN_DEVICE_LOST_ERROR(MESSAGE) DAWN_MAKE_ERROR(InternalErrorType::DeviceLost, MESSAGE)
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#define DAWN_UNIMPLEMENTED_ERROR(MESSAGE) DAWN_MAKE_ERROR(InternalErrorType::Unimplemented, MESSAGE)
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#define DAWN_OUT_OF_MEMORY_ERROR(MESSAGE) DAWN_MAKE_ERROR(InternalErrorType::OutOfMemory, MESSAGE)
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#define DAWN_CONCAT1(x, y) x##y
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#define DAWN_CONCAT2(x, y) DAWN_CONCAT1(x, y)
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#define DAWN_LOCAL_VAR DAWN_CONCAT2(_localVar, __LINE__)
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// When Errors aren't handled explicitly, calls to functions returning errors should be
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// wrapped in an DAWN_TRY. It will return the error if any, otherwise keep executing
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// the current function.
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#define DAWN_TRY(EXPR) \
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{ \
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auto DAWN_LOCAL_VAR = EXPR; \
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if (DAWN_UNLIKELY(DAWN_LOCAL_VAR.IsError())) { \
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std::unique_ptr<::dawn_native::ErrorData> error = DAWN_LOCAL_VAR.AcquireError(); \
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error->AppendBacktrace(__FILE__, __func__, __LINE__); \
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return {std::move(error)}; \
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} \
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} \
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for (;;) \
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break
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// DAWN_TRY_ASSIGN is the same as DAWN_TRY for ResultOrError and assigns the success value, if
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// any, to VAR.
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#define DAWN_TRY_ASSIGN(VAR, EXPR) \
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{ \
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auto DAWN_LOCAL_VAR = EXPR; \
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if (DAWN_UNLIKELY(DAWN_LOCAL_VAR.IsError())) { \
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std::unique_ptr<ErrorData> error = DAWN_LOCAL_VAR.AcquireError(); \
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error->AppendBacktrace(__FILE__, __func__, __LINE__); \
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return {std::move(error)}; \
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} \
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VAR = DAWN_LOCAL_VAR.AcquireSuccess(); \
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} \
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for (;;) \
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break
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// Assert that errors are device loss so that we can continue with destruction
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void AssertAndIgnoreDeviceLossError(MaybeError maybeError);
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} // namespace dawn_native
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#endif // DAWNNATIVE_ERROR_H_
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