github.com/aliyun/credentials-go@v1.4.7/credentials/credential_updater.go (about)

     1  package credentials
     2  
     3  import (
     4  	"net/http"
     5  	"time"
     6  )
     7  
     8  const defaultInAdvanceScale = 0.95
     9  
    10  var hookDo = func(fn func(req *http.Request) (*http.Response, error)) func(req *http.Request) (*http.Response, error) {
    11  	return fn
    12  }
    13  
    14  type credentialUpdater struct {
    15  	credentialExpiration int
    16  	lastUpdateTimestamp  int64
    17  	inAdvanceScale       float64
    18  }
    19  
    20  func (updater *credentialUpdater) needUpdateCredential() (result bool) {
    21  	if updater.inAdvanceScale == 0 {
    22  		updater.inAdvanceScale = defaultInAdvanceScale
    23  	}
    24  	return time.Now().Unix()-updater.lastUpdateTimestamp >= int64(float64(updater.credentialExpiration)*updater.inAdvanceScale)
    25  }