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Merge "init: Use android::base::boot_clock instead of /proc/uptime"

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Treehugger Robot 2018-04-19 17:43:07 +00:00 committed by Gerrit Code Review
commit 8e73e6f242
1 changed files with 5 additions and 3 deletions
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8
init/bootchart.cpp
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@ -32,12 +32,14 @@
#include <mutex>
#include <thread>
#include <android-base/chrono_utils.h>
#include <android-base/file.h>
#include <android-base/logging.h>
#include <android-base/properties.h>
#include <android-base/stringprintf.h>
using android::base::StringPrintf;
using android::base::boot_clock;
using namespace std::chrono_literals;
namespace android {
@ -50,9 +52,9 @@ static std::condition_variable g_bootcharting_finished_cv;
static bool g_bootcharting_finished;
static long long get_uptime_jiffies() {
std::string uptime;
if (!android::base::ReadFileToString("/proc/uptime", &uptime)) return 0;
return 100LL * strtod(uptime.c_str(), NULL);
constexpr int64_t kNanosecondsPerJiffy = 10000000;
boot_clock::time_point uptime = boot_clock::now();
return uptime.time_since_epoch().count() / kNanosecondsPerJiffy;
}
static std::unique_ptr<FILE, decltype(&fclose)> fopen_unique(const char* filename,