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44 lines
1.6 KiB
44 lines
1.6 KiB
4 months ago
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/*
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* Copyright (C) 2016 The Android Open Source Project
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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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*/
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// Portable error handling functions. This is only necessary for host-side
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// code that needs to be cross-platform; code that is only run on Unix should
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// just use errno and strerror() for simplicity.
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//
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// There is some complexity since Windows has (at least) three different error
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// numbers, not all of which share the same type:
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// * errno: for C runtime errors.
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// * GetLastError(): Windows non-socket errors.
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// * WSAGetLastError(): Windows socket errors.
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// errno can be passed to strerror() on all platforms, but the other two require
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// special handling to get the error string. Refer to Microsoft documentation
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// to determine which error code to check for each function.
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#pragma once
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#include <string>
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namespace android {
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namespace base {
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// Returns a string describing the given system error code. |error_code| must
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// be errno on Unix or GetLastError()/WSAGetLastError() on Windows. Passing
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// errno on Windows has undefined behavior.
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std::string SystemErrorCodeToString(int error_code);
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} // namespace base
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} // namespace android
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