github.com/metacubex/gvisor@v0.0.0-20240320004321-933faba989ec/pkg/sentry/state/state_metadata.go (about)

     1  // Copyright 2018 The gVisor 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  //go:build !false
    16  // +build !false
    17  
    18  package state
    19  
    20  import (
    21  	"fmt"
    22  	"time"
    23  
    24  	"github.com/metacubex/gvisor/pkg/log"
    25  )
    26  
    27  // The save metadata keys for timestamp.
    28  const (
    29  	cpuUsage          = "cpu_usage"
    30  	metadataTimestamp = "timestamp"
    31  )
    32  
    33  func addSaveMetadata(m map[string]string) {
    34  	t, err := CPUTime()
    35  	if err != nil {
    36  		log.Warningf("Error getting cpu time: %v", err)
    37  	}
    38  	if previousMetadata != nil {
    39  		p, err := time.ParseDuration(previousMetadata[cpuUsage])
    40  		if err != nil {
    41  			log.Warningf("Error parsing previous runs' cpu time: %v", err)
    42  		}
    43  		t += p
    44  	}
    45  	m[cpuUsage] = t.String()
    46  
    47  	m[metadataTimestamp] = fmt.Sprintf("%v", time.Now())
    48  }