diff --git a/libutils/Android.bp b/libutils/Android.bp index 98921be66..efa4c414d 100644 --- a/libutils/Android.bp +++ b/libutils/Android.bp @@ -125,6 +125,7 @@ cc_library { native_bridge_supported: true, srcs: [ + "Errors.cpp", "FileMap.cpp", "JenkinsHash.cpp", "NativeHandle.cpp", diff --git a/libutils/Errors.cpp b/libutils/Errors.cpp new file mode 100644 index 000000000..2dfd138f8 --- /dev/null +++ b/libutils/Errors.cpp @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2019 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include + +namespace android { + +std::string statusToString(status_t s) { +#define STATUS_CASE(STATUS) \ + case STATUS: \ + return #STATUS + + switch (s) { + STATUS_CASE(OK); + STATUS_CASE(UNKNOWN_ERROR); + STATUS_CASE(NO_MEMORY); + STATUS_CASE(INVALID_OPERATION); + STATUS_CASE(BAD_VALUE); + STATUS_CASE(BAD_TYPE); + STATUS_CASE(NAME_NOT_FOUND); + STATUS_CASE(PERMISSION_DENIED); + STATUS_CASE(NO_INIT); + STATUS_CASE(ALREADY_EXISTS); + STATUS_CASE(DEAD_OBJECT); + STATUS_CASE(FAILED_TRANSACTION); + STATUS_CASE(BAD_INDEX); + STATUS_CASE(NOT_ENOUGH_DATA); + STATUS_CASE(WOULD_BLOCK); + STATUS_CASE(TIMED_OUT); + STATUS_CASE(UNKNOWN_TRANSACTION); + STATUS_CASE(FDS_NOT_ALLOWED); + STATUS_CASE(UNEXPECTED_NULL); +#undef STATUS_CASE + } + + return std::to_string(s) + ' ' + strerror(-s); +} + +} // namespace android diff --git a/libutils/include/utils/Errors.h b/libutils/include/utils/Errors.h index 1e0367749..d14d2231d 100644 --- a/libutils/include/utils/Errors.h +++ b/libutils/include/utils/Errors.h @@ -19,6 +19,7 @@ #include #include #include +#include namespace android { @@ -72,6 +73,9 @@ enum { UNEXPECTED_NULL = (UNKNOWN_ERROR + 8), }; +// Human readable name of error +std::string statusToString(status_t status); + // Restore define; enumeration is in "android" namespace, so the value defined // there won't work for Win32 code in a different namespace. #ifdef _WIN32