| // Copyright 2016 The Roughtime Authors. | |
| // | |
| // 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. */ | |
| // Package monotime provides access to the system's monotonic clock. | |
| package monotime | |
| import ( | |
| "unsafe" | |
| "time" | |
| ) | |
| var _ = unsafe.Sizeof(0) | |
| //go:noescape | |
| //go:linkname nanotime runtime.nanotime | |
| func nanotime() int64 | |
| // Now returns the monotonic duration since an unspecified epoch. | |
| func Now() time.Duration { | |
| return time.Duration(nanotime()) * time.Nanosecond | |
| } |