github.com/hugh712/snapd@v0.0.0-20200910133618-1a99902bd583/timings/helpers.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2019-2020 Canonical Ltd
     5   *
     6   * This program is free software: you can redistribute it and/or modify
     7   * it under the terms of the GNU General Public License version 3 as
     8   * published by the Free Software Foundation.
     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 <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  
    20  package timings
    21  
    22  // Run creates, starts and then stops a nested Span under parent Measurer. The nested
    23  // Span is passed to the measured function and can used to create further spans.
    24  func Run(meas Measurer, label, summary string, f func(nestedTiming Measurer)) {
    25  	nested := meas.StartSpan(label, summary)
    26  	f(nested)
    27  	nested.Stop()
    28  }