PowerShell Read Form Pipe - not blocking one or even both sides? -

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the powershell-script start namedpipe server:

$enc = [system.text.encoding]::ascii $buf = new-object byte[] 4096  $basename = "testpipe" $n = 0; {      $n++      $pipename = "$basename$n"      $delpipe = [system.io.directory]::getfiles("\\.\pipe\")|where{$_ -match $pipename} } while ( $delpipe.length -gt 5 )  $pipedir  = [system.io.pipes.pipedirection]::inout $pipemsg  = [system.io.pipes.pipetransmissionmode]::message $pipeopti = [system.io.pipes.pipeoptions]::asynchronous $pipe = new-object system.io.pipes.namedpipeserverstream(                $pipename, $pipedir, 1, $pipemsg, $pipeopti ) if ( !$pipe.isconnected ) { $pipe.waitforconnection() } echo "connected pipe: $pipename" $pw = new-object system.io.streamwriter $pipe $pw.autoflush = $true $pr = new-object system.io.streamreader $pipe

the pipeclient sends message:

writeline(pipehandel,"hi message"); fileflush(pipehandel);

now want read pipe , have found 2 ways 1) client blocked 2) server blocked?

1) makes pipeclient hang pipeserver doesn't :( 

function readmsg ($r, $e, $b) {      try {           $ntry=2           $got = ""           $loops = 0           {                 # read data available                 $foundmore = $false                 {                      try {                           $read = $r.readasync($b, 0, $b.length)                           if($read -gt 0) {                                 $foundmore = $true                                 $got += ($e.getstring($b, 0, $read))                                 $ntry = -1                           }                      } catch { $foundmore = $false; $read = 0; }                 } while($read -gt 0)                 if ($ntry -gt 0) {start-sleep -m 5; $ntry--;}           } while($foundmore -or $ntry -gt 0)      }      {            return $got       } } readmsg pr $enc $buf

2) let client send message server waits until client closes pipe in mean time server blocked??

function rdpipe ($r, $e, $b) {      return $r.readtoend()  # readline() } rdpipe pr $enc $buf

is there way both sides send , receives asynchronous messages? help, gooly

$read above task<int> , not int. if want use async following if should changed to:

if ($read.result -gt 0) {     ... }

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