timings.go

Documentation: scheduler/utils

     1  /*
     2   * P2PFaaS - A framework for FaaS Load Balancing
     3   * Copyright (c) 2019 - 2022. Gabriele Proietti Mattia <pm.gabriele@outlook.com>
     4   *
     5   * This program is free software: you can redistribute it and/or modify
     6   * it under the terms of the GNU General Public License as published by
     7   * the Free Software Foundation, either version 3 of the License, or
     8   * (at your option) any later version.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <https://www.gnu.org/licenses/>.
    17   */
    18  
    19  package utils
    20  
    21  import (
    22  	"scheduler/log"
    23  	"scheduler/types"
    24  	"time"
    25  )
    26  
    27  func ComputeTimings(start *types.TimingsStart, timings *types.Timings) {
    28  	log.Log.Debug("Computing timings")
    29  	if start != nil && timings != nil {
    30  		now := time.Now()
    31  
    32  		if start.ArrivedAt != nil {
    33  			totalTime := now.Sub(*start.ArrivedAt).Seconds()
    34  			timings.TotalTime = &totalTime
    35  		}
    36  
    37  		if start.ScheduledAt != nil && start.ArrivedAt != nil {
    38  			schedulingTime := start.ScheduledAt.Sub(*start.ArrivedAt).Seconds()
    39  			timings.SchedulingTime = &schedulingTime
    40  		}
    41  
    42  		if start.ProbingStartedAt != nil && start.ProbingEndedAt != nil {
    43  			probingTime := (start.ProbingEndedAt.Sub(*start.ProbingStartedAt)).Seconds()
    44  			timings.ProbingTime = &probingTime
    45  		}
    46  	} else {
    47  		log.Log.Errorf("Computing timings problem: startNil=%v timingsNil=%", start == nil, timings == nil)
    48  	}
    49  }
    50  
    51  func GetTimeNow() *time.Time {
    52  	now := time.Now()
    53  	return &now
    54  }
    55
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