* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
* ucache is licensed under the Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
* http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
#include "ucache_string_util.h"
#include <cstring>
namespace turbo::ucache {
bool TryExtractValue(const std::string &line, const char *key, uint64_t &outVal)
{
auto pos = line.find(key);
if (pos == std::string::npos) {
return false;
}
size_t keyLen = std::strlen(key);
std::string rawVal = line.substr(pos + keyLen);
std::string trimmed = TrimString(rawVal);
if (trimmed.empty()) {
return false;
}
size_t digitEnd = 0;
while (digitEnd < trimmed.size() && std::isdigit(trimmed[digitEnd])) {
digitEnd++;
}
if (digitEnd == 0) {
return false;
}
std::string numStr = trimmed.substr(0, digitEnd);
return SafeStoInt(numStr, outVal) == UCACHE_OK;
}
}