Vista - unexpected truncation for [System.DateTime]

Just run another test with asynchronous script and get time truncated from
[System.DateTime] parameter!

I guess, I shouldn’t be playing with PowerShell on Sunday...

Sorry, the scripts are quite long now…

{Cut here}
#------------------------------------------------------------------------------
# g1.ps1 file


[System.Collections.ArrayList] $scriptipelines = new-object
System.Collections.ArrayList;

[string] $g2_script = "./g2.ps1"

#------------------------------------------------------------------------------
function BeginAsync([string] $command) {

#[diagnostics.process]::start("PowerShell.exe", "-NoLogo -Command
M:\Backup\CatalogNavigator\backup_sql.ps1 $backupPath $serverName $databases")

[System.Management.Automation.Runspaces.RunspaceConfiguration] $config =
[System.Management.Automation.Runspaces.RunspaceConfiguration]::Create();
[System.Management.Automation.Runspaces.Runspace] $runspace =
[System.Management.Automation.Runspaces.RunspaceFactory]::CreateRunspace($host, $config);
$runspace.Open()

[scriptblock] $script = Invoke-Expression $command

[System.Management.Automation.Runspaces.Pipeline] $pipeline =
$runspace.CreatePipeline($script);
$pipeline.Input.Close();
$pipeline.InvokeAsync();

$scriptipelines.Add($pipeline);
}


#------------------------------------------------------------------------------
function EndAsync {

while($scriptipelines.Count -gt 0) {

for($private:i = 0; $i -lt $scriptipelines.Count; $i++) {

[System.Management.Automation.Runspaces.Pipeline] $pipeline =
$scriptipelines[$i]
if($pipeline.PipelineStateInfo.State -ne
[System.Management.Automation.Runspaces.PipelineState]::Running) {

#$pipelineReader = $pipeline.Output
#$pipelineReader.Count

foreach($private:result in $pipeline.Output.ReadToEnd()) {
Write-Host ("1-- Value {0}" -f $result)
}

foreach($private:result in $pipeline.Error.ReadToEnd()) {
Write-Host ("2-- Value {0}" -f $result)
}

$scriptipelines.RemoveAt($i);
break
}
Write-Host ("Waiting for {0} " -f $scriptipelines.Count)
Start-Sleep -milli 500
}
}
}


#------------------------------------------------------------------------------
function DoAsync([DateTime] $a) {

$a

BeginAsync "{ $g2_script $a }"
Start-Sleep -milli 100
}


#------------------------------------------------------------------------------
#-- Main script
---------------------------------------------------------------
#------------------------------------------------------------------------------

[DateTime] $private:a = [DateTime]::Now;

DoAsync $a

EndAsync


return

#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
#------------------------------------------------------------------------------

{Cut here}
#------------------------------------------------------------------------------
# g2.ps1 file

param ( [DateTime] $a )

#param ( $a )

#------------------------------------------------------------------------------
#-- Main script
---------------------------------------------------------------
#------------------------------------------------------------------------------

$a


#$a.GetType()
#return

Start-Sleep -milli 200
[DateTime] $private:b = [System.DateTime]::Now
Start-Sleep -milli 200


@"
A started $a. A elapsed time $($b - $a)<br>
B started $b. B elapsed time $([System.DateTime]::Now - $b)<br>
Total elapsed time $([System.DateTime]::Now - $a)<br>
"@



return

#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
{Cut here}


Output:

> ./g1

Sunday, October 29, 2006 1:52:12 PM
^^^^^^^^^^^^^^^^^^^^^^^^ Time is here
0
Waiting for 1
1-- Value 10/29/2006 12:00:00 AM
^^^^^^^^^^^^^^^^^^^^^^^^ Time is truncated!
1-- Value A started 10/29/2006 00:00:00. A elapsed time 13:52:12.6406865<br>
B started 10/29/2006 13:52:12. B elapsed time 00:00:00.2031224<br>
Total elapsed time 13:52:12.8438089<br>

Eigene,
Thanks to you post “PoSh quiz�, I figured out what was wrong in mine!

Apparently,
[DateTime] gets converted to string “10/29/2006 20:36:31� and then become
two parameters “10/29/2006� and “20:36:31�!

Thus the next question, how to pass any parameter to the script block for
further execution? I.e. pass it without conversion to string.


# g3.ps1 file

[System.Collections.ArrayList] $scriptipelines = new-object
System.Collections.ArrayList;

[string] $g2_script = "./g2.ps1"

#------------------------------------------------------------------------------
function test([DateTime] $a) {

Start-Sleep -milli 200
[DateTime] $private:b = [System.DateTime]::Now
Start-Sleep -milli 200


@"
A started $a. A elapsed time $($b - $a)<br>
B started $b. B elapsed time $([System.DateTime]::Now - $b)<br>
Total elapsed time $([System.DateTime]::Now - $a)<br>
"@

}



#------------------------------------------------------------------------------
#-- Main script
---------------------------------------------------------------
#------------------------------------------------------------------------------

[DateTime] $private:a = [DateTime]::Now;

[scriptblock] $scriptA = Invoke-Expression "{ test `"$a`" }"
&$scriptA

"------------------------------------------------------------------------------"


[scriptblock] $scriptB = Invoke-Expression "{ test $a }"
&$scriptB

return

#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
#------------------------------------------------------------------------------


Output:
PS X:\PowerShell\0\CatalogNavigator.PS> ./g3
A started 10/29/2006 20:36:31. A elapsed time 00:00:01.1007521<br>
B started 10/29/2006 20:36:32. B elapsed time 00:00:00.2031224<br>
Total elapsed time 00:00:01.3038745<br>
------------------------------------------------------------------------------
A started 10/29/2006 00:00:00. A elapsed time 20:36:32.5226217<br>
B started 10/29/2006 20:36:32. B elapsed time 00:00:00.2031224<br>
Total elapsed time 20:36:32.7257441<br>


"OK" wrote:

> Just run another test with asynchronous script and get time truncated from
> [System.DateTime] parameter!
>
> I guess, I shouldn’t be playing with PowerShell on Sunday...
>
> Sorry, the scripts are quite long now…
>
> {Cut here}
> #------------------------------------------------------------------------------
> # g1.ps1 file
>
>
> [System.Collections.ArrayList] $scriptipelines = new-object
> System.Collections.ArrayList;
>
> [string] $g2_script = "./g2.ps1"
>
> #------------------------------------------------------------------------------
> function BeginAsync([string] $command) {
>
> #[diagnostics.process]::start("PowerShell.exe", "-NoLogo -Command
> M:\Backup\CatalogNavigator\backup_sql.ps1 $backupPath $serverName $databases")
>
> [System.Management.Automation.Runspaces.RunspaceConfiguration] $config =
> [System.Management.Automation.Runspaces.RunspaceConfiguration]::Create();
> [System.Management.Automation.Runspaces.Runspace] $runspace =
> [System.Management.Automation.Runspaces.RunspaceFactory]::CreateRunspace($host, $config);
> $runspace.Open()
>
> [scriptblock] $script = Invoke-Expression $command
>
> [System.Management.Automation.Runspaces.Pipeline] $pipeline =
> $runspace.CreatePipeline($script);
> $pipeline.Input.Close();
> $pipeline.InvokeAsync();
>
> $scriptipelines.Add($pipeline);
> }
>
>
> #------------------------------------------------------------------------------
> function EndAsync {
>
> while($scriptipelines.Count -gt 0) {
>
> for($private:i = 0; $i -lt $scriptipelines.Count; $i++) {
>
> [System.Management.Automation.Runspaces.Pipeline] $pipeline =
> $scriptipelines[$i]
> if($pipeline.PipelineStateInfo.State -ne
> [System.Management.Automation.Runspaces.PipelineState]::Running) {
>
> #$pipelineReader = $pipeline.Output
> #$pipelineReader.Count
>
> foreach($private:result in $pipeline.Output.ReadToEnd()) {
> Write-Host ("1-- Value {0}" -f $result)
> }
>
> foreach($private:result in $pipeline.Error.ReadToEnd()) {
> Write-Host ("2-- Value {0}" -f $result)
> }
>
> $scriptipelines.RemoveAt($i);
> break
> }
> Write-Host ("Waiting for {0} " -f $scriptipelines.Count)
> Start-Sleep -milli 500
> }
> }
> }
>
>
> #------------------------------------------------------------------------------
> function DoAsync([DateTime] $a) {
>
> $a
>
> BeginAsync "{ $g2_script $a }"
> Start-Sleep -milli 100
> }
>
>
> #------------------------------------------------------------------------------
> #-- Main script
> ---------------------------------------------------------------
> #------------------------------------------------------------------------------
>
> [DateTime] $private:a = [DateTime]::Now;
>
> DoAsync $a
>
> EndAsync
>
>
> return
>
> #------------------------------------------------------------------------------
> #------------------------------------------------------------------------------
> #------------------------------------------------------------------------------
>
> {Cut here}
> #------------------------------------------------------------------------------
> # g2.ps1 file
>
> param ( [DateTime] $a )
>
> #param ( $a )
>
> #------------------------------------------------------------------------------
> #-- Main script
> ---------------------------------------------------------------
> #------------------------------------------------------------------------------
>
> $a
>
>
> #$a.GetType()
> #return
>
> Start-Sleep -milli 200
> [DateTime] $private:b = [System.DateTime]::Now
> Start-Sleep -milli 200
>
>
> @"
> A started $a. A elapsed time $($b - $a)<br>
> B started $b. B elapsed time $([System.DateTime]::Now - $b)<br>
> Total elapsed time $([System.DateTime]::Now - $a)<br>
> "@
>
>
>
> return
>
> #------------------------------------------------------------------------------
> #------------------------------------------------------------------------------
> #------------------------------------------------------------------------------
> {Cut here}
>
>
> Output:
>
> > ./g1
>
> Sunday, October 29, 2006 1:52:12 PM
> ^^^^^^^^^^^^^^^^^^^^^^^^ Time is here
> 0
> Waiting for 1
> 1-- Value 10/29/2006 12:00:00 AM
> ^^^^^^^^^^^^^^^^^^^^^^^^ Time is truncated!
> 1-- Value A started 10/29/2006 00:00:00. A elapsed time 13:52:12.6406865<br>
> B started 10/29/2006 13:52:12. B elapsed time 00:00:00.2031224<br>
> Total elapsed time 13:52:12.8438089<br>
>

"OK" wrote:

> Thus the next question, how to pass any parameter to the script block for
> further execution? I.e. pass it without conversion to string.

I'm not sure whether this is what you mean, but it may help you to
understand how to deal with scriptblocks and parameters in general:

# a function that takes a scriptblock as parameter and executes it
function start-scriptblock([scriptblock]$sb) {&$sb}

# a scriptblock variable that also can take a string parameter and prints it
$mysb = { param([string]$p1) 'hello world'; get-date; "parameter1: $p1" }

# testing the function
PS> start-scriptblock {&$mysb 123}
hello world

Montag, 30. Oktober 2006 09:59:44
parameter1: 123

Hope that helps.

--
greetings
dreeschkind

Dreeschkind,
Thanks a lot! You posts always raise more questions then they answer! :-)
I like them!
They make me think!

I made another post PoSh quiz II
And I’ll make another test scritp to show what I actually want!


"dreeschkind" wrote:

> "OK" wrote:
>
> > Thus the next question, how to pass any parameter to the script block for
> > further execution? I.e. pass it without conversion to string.
>
> I'm not sure whether this is what you mean, but it may help you to
> understand how to deal with scriptblocks and parameters in general:
>
> # a function that takes a scriptblock as parameter and executes it
> function start-scriptblock([scriptblock]$sb) {&$sb}
>
> # a scriptblock variable that also can take a string parameter and prints it
> $mysb = { param([string]$p1) 'hello world'; get-date; "parameter1: $p1" }
>
> # testing the function
> PS> start-scriptblock {&$mysb 123}
> hello world
>
> Montag, 30. Oktober 2006 09:59:44
> parameter1: 123
>
> Hope that helps.
>
> --
> greetings
> dreeschkind