github.com/cloudwego/hertz@v0.9.3/internal/stats/stats_util.go (about)

     1  /*
     2   * Copyright 2022 CloudWeGo Authors
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *  http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  
    17  package stats
    18  
    19  import (
    20  	"github.com/cloudwego/hertz/pkg/common/tracer/stats"
    21  	"github.com/cloudwego/hertz/pkg/common/tracer/traceinfo"
    22  )
    23  
    24  // Record records the event to HTTPStats.
    25  func Record(ti traceinfo.TraceInfo, event stats.Event, err error) {
    26  	if ti == nil {
    27  		return
    28  	}
    29  	if err != nil {
    30  		ti.Stats().Record(event, stats.StatusError, err.Error())
    31  	} else {
    32  		ti.Stats().Record(event, stats.StatusInfo, "")
    33  	}
    34  }
    35  
    36  // CalcEventCostUs calculates the duration between start and end and returns in microsecond.
    37  func CalcEventCostUs(start, end traceinfo.Event) uint64 {
    38  	if start == nil || end == nil || start.IsNil() || end.IsNil() {
    39  		return 0
    40  	}
    41  	return uint64(end.Time().Sub(start.Time()).Microseconds())
    42  }