97 lines
3 KiB
C++
97 lines
3 KiB
C++
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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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#include "sysdeps/errno.h"
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#include <errno.h>
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#include <thread>
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#include <unordered_map>
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#include <utility>
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#include "adb.h"
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// Use the linux asm-generic values for errno (which are used on all android archs but mips).
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#define ERRNO_VALUES() \
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ERRNO_VALUE(EACCES, 13); \
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ERRNO_VALUE(EEXIST, 17); \
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ERRNO_VALUE(EFAULT, 14); \
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ERRNO_VALUE(EFBIG, 27); \
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ERRNO_VALUE(EINTR, 4); \
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ERRNO_VALUE(EINVAL, 22); \
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ERRNO_VALUE(EIO, 5); \
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ERRNO_VALUE(EISDIR, 21); \
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ERRNO_VALUE(ELOOP, 40); \
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ERRNO_VALUE(EMFILE, 24); \
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ERRNO_VALUE(ENAMETOOLONG, 36); \
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ERRNO_VALUE(ENFILE, 23); \
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ERRNO_VALUE(ENOENT, 2); \
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ERRNO_VALUE(ENOMEM, 12); \
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ERRNO_VALUE(ENOSPC, 28); \
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ERRNO_VALUE(ENOTDIR, 20); \
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ERRNO_VALUE(EOVERFLOW, 75); \
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ERRNO_VALUE(EPERM, 1); \
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ERRNO_VALUE(EROFS, 30); \
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ERRNO_VALUE(ETXTBSY, 26)
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// Make sure these values are actually correct.
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#if defined(__linux__) && !defined(__mips__)
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#define ERRNO_VALUE(error_name, wire_value) static_assert((error_name) == (wire_value), "")
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ERRNO_VALUES();
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#undef ERRNO_VALUE
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#endif
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static std::unordered_map<int, int>* generate_host_to_wire() {
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auto result = new std::unordered_map<int, int>();
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#define ERRNO_VALUE(error_name, wire_value) \
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result->insert(std::make_pair((error_name), (wire_value)))
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ERRNO_VALUES();
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#undef ERRNO_VALUE
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return result;
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}
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static std::unordered_map<int, int>* generate_wire_to_host() {
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auto result = new std::unordered_map<int, int>();
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#define ERRNO_VALUE(error_name, wire_value) \
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result->insert(std::make_pair((wire_value), (error_name)))
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ERRNO_VALUES();
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#undef ERRNO_VALUE
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return result;
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}
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static std::unordered_map<int, int>& host_to_wire = *generate_host_to_wire();
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static std::unordered_map<int, int>& wire_to_host = *generate_wire_to_host();
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int errno_to_wire(int error) {
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auto it = host_to_wire.find(error);
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if (it == host_to_wire.end()) {
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LOG(ERROR) << "failed to convert errno " << error << " (" << strerror(error) << ") to wire";
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// Return EIO;
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return 5;
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}
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return it->second;
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}
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int errno_from_wire(int error) {
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auto it = host_to_wire.find(error);
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if (it == host_to_wire.end()) {
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LOG(ERROR) << "failed to convert errno " << error << " from wire";
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return EIO;
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}
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return it->second;
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}
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