diff options
Diffstat (limited to 'bootstat/uptime_parser.cpp')
-rw-r--r-- | bootstat/uptime_parser.cpp | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/bootstat/uptime_parser.cpp b/bootstat/uptime_parser.cpp new file mode 100644 index 000000000..7c2034c3d --- /dev/null +++ b/bootstat/uptime_parser.cpp @@ -0,0 +1,38 @@ +/* + * Copyright (C) 2016 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 "uptime_parser.h" + +#include <time.h> +#include <cstdlib> +#include <string> +#include <android-base/file.h> +#include <android-base/logging.h> + +namespace bootstat { + +time_t ParseUptime() { + std::string uptime_str; + if (!android::base::ReadFileToString("/proc/uptime", &uptime_str)) { + PLOG(ERROR) << "Failed to read /proc/uptime"; + return -1; + } + + // Cast intentionally rounds down. + return static_cast<time_t>(strtod(uptime_str.c_str(), NULL)); +} + +} // namespace bootstat
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