Project import generated by Copybara.
PiperOrigin-RevId: 237361882
Change-Id: I109a68f44db867b20f8c6a7732b0ce657133e52a
diff --git a/quic/core/quic_time.cc b/quic/core/quic_time.cc
new file mode 100644
index 0000000..92a3eec
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+++ b/quic/core/quic_time.cc
@@ -0,0 +1,85 @@
+// Copyright (c) 2012 The Chromium 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 "net/third_party/quiche/src/quic/core/quic_time.h"
+
+#include <cinttypes>
+#include <cstdlib>
+#include <limits>
+
+#include "net/third_party/quiche/src/quic/platform/api/quic_str_cat.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_string.h"
+
+namespace quic {
+
+QuicString QuicTime::Delta::ToDebugValue() const {
+ const int64_t one_ms = 1000;
+ const int64_t one_s = 1000 * one_ms;
+
+ int64_t absolute_value = std::abs(time_offset_);
+
+ // For debugging purposes, always display the value with the highest precision
+ // available.
+ if (absolute_value > one_s && absolute_value % one_s == 0) {
+ return QuicStringPrintf("%" PRId64 "s", time_offset_ / one_s);
+ }
+ if (absolute_value > one_ms && absolute_value % one_ms == 0) {
+ return QuicStringPrintf("%" PRId64 "ms", time_offset_ / one_ms);
+ }
+ return QuicStringPrintf("%" PRId64 "us", time_offset_);
+}
+
+uint64_t QuicWallTime::ToUNIXSeconds() const {
+ return microseconds_ / 1000000;
+}
+
+uint64_t QuicWallTime::ToUNIXMicroseconds() const {
+ return microseconds_;
+}
+
+bool QuicWallTime::IsAfter(QuicWallTime other) const {
+ return microseconds_ > other.microseconds_;
+}
+
+bool QuicWallTime::IsBefore(QuicWallTime other) const {
+ return microseconds_ < other.microseconds_;
+}
+
+bool QuicWallTime::IsZero() const {
+ return microseconds_ == 0;
+}
+
+QuicTime::Delta QuicWallTime::AbsoluteDifference(QuicWallTime other) const {
+ uint64_t d;
+
+ if (microseconds_ > other.microseconds_) {
+ d = microseconds_ - other.microseconds_;
+ } else {
+ d = other.microseconds_ - microseconds_;
+ }
+
+ if (d > static_cast<uint64_t>(std::numeric_limits<int64_t>::max())) {
+ d = std::numeric_limits<int64_t>::max();
+ }
+ return QuicTime::Delta::FromMicroseconds(d);
+}
+
+QuicWallTime QuicWallTime::Add(QuicTime::Delta delta) const {
+ uint64_t microseconds = microseconds_ + delta.ToMicroseconds();
+ if (microseconds < microseconds_) {
+ microseconds = std::numeric_limits<uint64_t>::max();
+ }
+ return QuicWallTime(microseconds);
+}
+
+// TODO(ianswett) Test this.
+QuicWallTime QuicWallTime::Subtract(QuicTime::Delta delta) const {
+ uint64_t microseconds = microseconds_ - delta.ToMicroseconds();
+ if (microseconds > microseconds_) {
+ microseconds = 0;
+ }
+ return QuicWallTime(microseconds);
+}
+
+} // namespace quic
