Private/Get-NowMilliseconds.ps1

# Copyright 2017 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

Function Get-NowMilliseconds
{
    PARAM([int]$Fudge=0)
    PROCESS {
        if ($PSBoundParameters['Debug']) {
            $DebugPreference = 'Continue'
        }
        $Now = if ($Fudge -and $Fudge -ne 0) {
            [DateTime]::UtcNow.AddMilliseconds($Fudge)
        }
        else {
            [DateTime]::UtcNow
        }
        $UnixEpochStart = new-object DateTime 1970,1,1,0,0,0,([DateTimeKind]::Utc)
        $NowMilliseconds = [int64](New-TimeSpan -Start $UnixEpochStart -End $Now).TotalMilliseconds
        write-debug ("NowMilliseconds: " + $NowMilliseconds)
        $NowMilliseconds
    }
}