go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/logdog/appengine/coordinator/endpoints/util.go (about)

     1  // Copyright 2016 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package endpoints
    16  
    17  import (
    18  	"time"
    19  
    20  	"google.golang.org/protobuf/types/known/durationpb"
    21  )
    22  
    23  // MinDuration selects the smallest duration that is > 0 from a set of
    24  // durationpb.Duration protobufs.
    25  //
    26  // If none of the supplied Durations are > 0, 0 will be returned.
    27  func MinDuration(candidates ...*durationpb.Duration) (exp time.Duration) {
    28  	for _, c := range candidates {
    29  		if cd := c.AsDuration(); cd > 0 && (exp <= 0 || cd < exp) {
    30  			exp = cd
    31  		}
    32  	}
    33  	return
    34  }