no files can be opened in a C program

Abhijit Pawar apawar.linux at gmail.com
Mon Jul 25 08:35:29 EDT 2011


On 07/25/2011 05:29 PM, Naveen Kumar wrote:
> You can use command ulimit -a, there you can check the limit for a 
> process.
>
> Thanks,
> Naveen
Ulimit gives 1024 as open file limit. In struct task_struct it has a 
member called struct files_struct *files;

I tried checking for this member and the limit however I am  not able to 
decide correctly why the limit is 1024.
  Also, is there any distinction between 32 bit and 64 bit systems for 
this limit?


> On Mon, Jul 25, 2011 at 5:18 PM, Anuz Pratap Singh Tomar 
> <chambilkethakur at gmail.com <mailto:chambilkethakur at gmail.com>> wrote:
>
>
>
>     On Mon, Jul 25, 2011 at 12:31 PM, Venkateswarlu P
>     <p.venkatesh551 at gmail.com <mailto:p.venkatesh551 at gmail.com>> wrote:
>
>
>         What is the Max no of files that can be opened simultaneously
>         within a Single C program.
>
>         i want this information for kenel compilation
>
>
>     See man 3 setrlimit
>     Total number of files that can be opened should depend on file system.
>     And what this has to do with kernel compilation?
>
>
>
>
>
>
>
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Regards,
Abhijit
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