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

-

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) {     ... }

Comments

Post a Comment

Popular posts from this blog

C# random value from dictionary and tuple -

-
i have following code, , need random item contains string "region_1" dictionary. public static dictionary<int, tuple<string, int, currencytype>> itemarray = new dictionary<int, tuple<string, int, currencytype>>() { { 0xb3e, new tuple<string, int, currencytype>("region_1", 1500, currencytype.fame) } }; public static int generateitemid(string shopid) { var generateditem = itemarray.elementat(new random().next(0, itemarray.count)).key; } how select this? it's not possible efficiently... first create static random @ class level... prevent non-random behaviour if run query on short period of time... (it's seeded discrete clock) static random rnd = new random(); then: var item = itemarray.values .where(t => t.item1 == shopid) .orderby(_ => rnd.next()) .firstordefault()
Read more

.htaccess - htaccess convert request to clean url and add slash at the end of the url -

-
ok , searched more 4 days , more 20 posts here in stach or in websites without kind of success first here htaccess file rewriteengine on rewriterule ^([a-za-z0-9_]+)/?$ index.php?page=$1 [nc] rewriterule ^([a-za-z0-9_]+)\/([a-za-z0-9_]+)\/?$ index.php?page=$1&action=$2 [nc] i tried many codes 1 worked me can call request , works me www.example.com/pagename => www.example.com/index.php?page=pagename here questions , please provide me information "in detail" understand code well 1- how convert request automatically www.example.com/index.php?page=pagename www.example.com/pagename 2- if tried add slash @ end shows me page without images or styling mean www.example.com/pagename => works www.example.com/pagename/ => doesn't work that's :) for first part need 301 rule this: rewritecond %{the_request} /index\.php\?page=([^\s&]+) [nc] rewriterule ^ /%1? [r=301,l] for second part use absolute path in css, js, images files r...
Read more

cgi - How do I interpret URLs without extension as files rather than missing directories in nginx? -

-
so i'm trying install zoneminder , have run under nginx, has few compiled files need run using fast-cgi. these files lack extension. if file has extension, there no issue , nginx interprets file , return 404 if can't find it. if has no extension, assume it's directory , return 404 when can't find sort of index page. here have now: # security camera domain. server { listen 888; server_name mydomain.com; root /srv/http/zm; # enable php support. include php.conf; location / { index index.html index.htm index.php; } # enable cgi support. location ~ ^/cgi-bin/(.+)$ { alias /srv/cgi-bin/zm/; fastcgi_pass unix:/run/fcgiwrap.sock; fastcgi_param script_filename $document_root/$1; include fastcgi.conf; } } the idea is, under cgi-bin directory goes through fastcgi pipe. any idea on howi can fix this? upon closer inspection, realized zoneminder has 2 cgi sc...
Read more