| /* |
| Copyright The containerd 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 archive |
| |
| import ( |
| "syscall" |
| "time" |
| "unsafe" |
| ) |
| |
| var ( |
| minTime = time.Unix(0, 0) |
| maxTime time.Time |
| ) |
| |
| func init() { |
| if unsafe.Sizeof(syscall.Timespec{}.Nsec) == 8 { |
| // This is a 64 bit timespec |
| // os.Chtimes limits time to the following |
| maxTime = time.Unix(0, 1<<63-1) |
| } else { |
| // This is a 32 bit timespec |
| maxTime = time.Unix(1<<31-1, 0) |
| } |
| } |
| |
| func boundTime(t time.Time) time.Time { |
| if t.Before(minTime) || t.After(maxTime) { |
| return minTime |
| } |
| |
| return t |
| } |
| |
| func latestTime(t1, t2 time.Time) time.Time { |
| if t1.Before(t2) { |
| return t2 |
| } |
| return t1 |
| } |