72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
/*
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* Copyright 2021 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 "system_utils.h"
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#include <android/api-level.h>
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#include <stdlib.h>
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#include <sys/system_properties.h>
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namespace gamesdk {
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#if __ANDROID_API__ >= 26
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std::string getSystemPropViaCallback(const char* key,
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const char* default_value = "") {
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const prop_info* prop = __system_property_find(key);
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if (prop == nullptr) {
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return default_value;
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}
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std::string return_value;
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auto thunk = [](void* cookie, const char* /*name*/, const char* value,
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uint32_t /*serial*/) {
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if (value != nullptr) {
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std::string* r = static_cast<std::string*>(cookie);
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*r = value;
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}
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};
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__system_property_read_callback(prop, thunk, &return_value);
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return return_value;
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}
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#else
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std::string getSystemPropViaGet(const char* key,
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const char* default_value = "") {
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char buffer[PROP_VALUE_MAX + 1] = ""; // +1 for terminator
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int bufferLen = __system_property_get(key, buffer);
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if (bufferLen > 0)
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return buffer;
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else
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return "";
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}
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#endif
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std::string GetSystemProp(const char* key, const char* default_value) {
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#if __ANDROID_API__ >= 26
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return getSystemPropViaCallback(key, default_value);
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#else
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return getSystemPropViaGet(key, default_value);
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#endif
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}
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int GetSystemPropAsInt(const char* key, int default_value) {
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std::string prop = GetSystemProp(key);
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return prop == "" ? default_value : strtoll(prop.c_str(), nullptr, 10);
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}
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bool GetSystemPropAsBool(const char* key, bool default_value) {
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return GetSystemPropAsInt(key, default_value) != 0;
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}
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} // namespace gamesdk
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