Re: getline in /proc

[Simon Vaillancourt]

Just wanted to add that version 3.1.5 also has that problem.

Simon Vaillancourt wrote:

> Hello,
>    I'm not sure if this is a gawk(using version 3.1.1) bug or a procfs 
> issue but but when doing a getline on a file that doesn't exist in 
> /proc, it loops forever, for example :
>
> echo test | gawk 'BEGIN { while (getline < 
> "/proc/anypid/unexistingfile") {print "line="$0}}'
>
> I stumbled on this while writing a process analysis tool, when a 
> process for which I am readins properties in /proc suddently dies, my 
> script goes crazy. I can work around this problem by copying the files 
> in /tmp before reading them.
>
> Thanks
>
> Simon