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/*
* Copyright (C) 2020 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 "compat_framework.h"
#include <sys/types.h>
#include <unistd.h>
#include "android-base/logging.h"
#include "thread-current-inl.h"
namespace art {
// Compat change states as strings.
static constexpr char kUnknownChangeState[] = "UNKNOWN";
static constexpr char kEnabledChangeState[] = "ENABLED";
static constexpr char kDisabledChangeState[] = "DISABLED";
static constexpr char kLoggedState[] = "LOGGED";
CompatFramework::CompatFramework()
: reported_compat_changes_lock_("reported compat changes lock") {}
CompatFramework::~CompatFramework() {}
bool CompatFramework::IsChangeEnabled(uint64_t change_id) {
const auto enabled = disabled_compat_changes_.count(change_id) == 0;
ReportChange(change_id, enabled ? ChangeState::kEnabled : ChangeState::kDisabled);
return enabled;
}
void CompatFramework::LogChange(uint64_t change_id) {
ReportChange(change_id, ChangeState::kLogged);
}
void CompatFramework::ReportChange(uint64_t change_id, ChangeState state) {
MutexLock mu(Thread::Current(), reported_compat_changes_lock_);
bool already_reported = reported_compat_changes_.count(change_id) != 0;
if (already_reported) {
return;
}
LOG(DEBUG) << "Compat change id reported: " << change_id << "; UID " << getuid()
<< "; state: " << ChangeStateToString(state);
// TODO(145743810): add an up call to java to log to statsd
reported_compat_changes_.emplace(change_id);
}
std::string_view CompatFramework::ChangeStateToString(ChangeState state) {
switch (state) {
case ChangeState::kUnknown:
return kUnknownChangeState;
case ChangeState::kEnabled:
return kEnabledChangeState;
case ChangeState::kDisabled:
return kDisabledChangeState;
case ChangeState::kLogged:
return kLoggedState;
}
}
} // namespace art
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