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55 lines
1.9 KiB
55 lines
1.9 KiB
/*
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* Copyright 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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#ifndef STAGEFRIGHT_CODEC2_ERRNO_UTILS_H_
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#define STAGEFRIGHT_CODEC2_ERRNO_UTILS_H_
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#include <errno.h>
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#include <C2.h>
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// standard ERRNO mappings
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template<int N> constexpr c2_status_t _c2_errno2status_impl();
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template<> constexpr c2_status_t _c2_errno2status_impl<0>() { return C2_OK; }
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template<> constexpr c2_status_t _c2_errno2status_impl<EINVAL>() { return C2_BAD_VALUE; }
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template<> constexpr c2_status_t _c2_errno2status_impl<EACCES>() { return C2_REFUSED; }
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template<> constexpr c2_status_t _c2_errno2status_impl<EPERM>() { return C2_REFUSED; }
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template<> constexpr c2_status_t _c2_errno2status_impl<ENOMEM>() { return C2_NO_MEMORY; }
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// map standard errno-s to the equivalent c2_status_t
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template<int... N> struct _c2_map_errno_impl;
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template<int E, int ... N> struct _c2_map_errno_impl<E, N...> {
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static c2_status_t map(int result) {
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if (result == E) {
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return _c2_errno2status_impl <E>();
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} else {
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return _c2_map_errno_impl<N...>::map(result);
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}
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}
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};
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template<> struct _c2_map_errno_impl<> {
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static c2_status_t map(int result) {
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return result == 0 ? C2_OK : C2_CORRUPTED;
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}
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};
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template<int... N>
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c2_status_t c2_map_errno(int result) {
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return _c2_map_errno_impl<N...>::map(result);
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}
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#endif // STAGEFRIGHT_CODEC2_ERRNO_UTILS_H_
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