blob: a47f960a082a6bf3c245b619fed51669724c76f9 [file] [log] [blame]
// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/developer/forensics/utils/time.h"
#include <lib/syslog/cpp/macros.h>
#include <lib/zx/time.h>
#include <ctime>
#include "src/lib/fxl/strings/string_printf.h"
namespace forensics {
std::optional<std::string> FormatDuration(zx::duration duration) {
if (duration == zx::duration::infinite()) {
return "inf";
if (duration < zx::sec(0)) {
return std::nullopt;
int64_t d = duration.to_hours() / 24;
duration -= zx::hour(d * 24);
int64_t h = duration.to_hours();
duration -= zx::hour(h);
int64_t m = duration.to_mins();
duration -= zx::min(m);
int64_t s = duration.to_secs();
return fxl::StringPrintf("%03ldd%02ldh%02ldm%02lds", d, h, m, s);
timekeeper::time_utc CurrentUtcTimeRaw(timekeeper::Clock* clock) {
timekeeper::time_utc now_utc;
// UtcNow returns a non-OK status only if the underlying handle is bad or we don't have sufficient
// rights to read the clock. CHECK-FAIL if this happens because the C++ runtime is expected to
// properly set up a clock.
if (const zx_status_t status = clock->UtcNow(&now_utc); status != ZX_OK) {
FX_PLOGS(FATAL, status) << "Failed to get current Utc time";
return now_utc;
std::string CurrentUtcTime(timekeeper::Clock* clock) {
timekeeper::time_utc now_utc = CurrentUtcTimeRaw(clock);
// std::gmtime expects epoch in seconds.
const int64_t now_utc_seconds = now_utc.get() / zx::sec(1).get();
char buffer[32];
strftime(buffer, sizeof(buffer), "%Y-%m-%d %X %Z", std::gmtime(&now_utc_seconds));
return std::string(buffer);
} // namespace forensics