Re: Writing NSString to a file descriptor

FROM : AstroK Software
DATE : Tue Nov 20 22:12:50 2007

Hi Gorazd,

thanks for your answer. I tried allocating the pipe with [[NSPipe 
alloc] init], but I still get a "Bad file descriptor". I really don't 
get what is wrong. I also tried to retain the file handle fh, just in 
case, but it doesn't work either...

  -- Arthur;


Le 20 nov. 07 à 21:52, Gorazd Krosl a écrit :

> Hi Arthur,
>

>> NSPipe *pipe = [NSPipe pipe]; // Allocation of

> autoreleased "pipe"
>

>> NSFileHandle *fh = [pipe fileHandleForWriting]; //

> since "pipe" is autoreleased "fh" is too.
>

>> [fh readInBackgroundAndNotify]; // you are reading in

> background, so your app will go through event loop.
>
> When your callback is called, your pipe is probably
> released and so your file handle is gone too, which
> results in bad file descriptor. Get pipe with [[NSPipe
> alloc] init] and release it when done with it.
>
> Regards,
> Gorazd