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Commit 591cab8c authored by Steven Moreland's avatar Steven Moreland
Browse files

Add statusToString function. 

For libbinder, not having these statuses printed out causes never ending
problems for developers.

Bug: 144534032
Test: libhidl_test tests this, which is on TH here
Change-Id: I02f37fb1e5b743131598ddc95ef89ebdfbdff615
parent 5fff3877

libutils/Android.bp

+1 −0
Original line number Diff line number Diff line
@@ -125,6 +125,7 @@ cc_library { 
    native_bridge_supported: true,



    srcs: [

        "Errors.cpp",

        "FileMap.cpp",

        "JenkinsHash.cpp",

        "NativeHandle.cpp",

libutils/Errors.cpp

0 → 100644
+51 −0
Original line number Diff line number Diff line 
/*

 * 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 <utils/Errors.h>



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

libutils/include/utils/Errors.h

+4 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 
#include <errno.h>

#include <stdint.h>

#include <sys/types.h>

#include <string>



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