corrected:what is fcntl function

corrected:what is fcntl function

[rinku rathore]

Hello,
Actually,I wanted specifically about the following
fcntl functions,listed below,here fd is file
descriptor

fcntl (fd, F_SETOWN, getpid()
fcntl (fd, F_SETFL,fcntl (fd, F_GETFL, NULL) |
O_ASYNC))

Rinku


		


		
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corrected:what is fcntl function

[rinku rathore]

Hello,
Actually,I wanted specifically about the following
fcntl functions,listed below,here fd is file
descriptor

fcntl (fd, F_SETOWN, getpid());

fcntl (fd, F_SETFL,fcntl (fd, F_GETFL, NULL) |
O_ASYNC));

Rinku


		


		
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Re: corrected:what is fcntl function

[rinku rathore]

hello,

fcntl (fd, F_SETFL, fcntl (fd, F_GETFL, NULL) |
 O_ASYNC));
 
 when somebody are reading / writing or delete your
 file, the operating 
 system will generate a SIGNAL to your program
 (default is SIGIO )
basically fcntl handle the file descriptor that means
when system generate a Signal SIGIO it is handled by
that fd(file descriptor),passed as first argument can
I get more information about O_ASYNC

--- Suciu Flavius <suciuflavius@tiscali.de> wrote:

> fcntl (fd, F_SETOWN, getpid());
> 
> the user of the program will became the owner of the
> opened file
> 
> fcntl (fd, F_SETFL, fcntl (fd, F_GETFL, NULL) |
> O_ASYNC));
> 
> when somebody are reading / writing or delete your
> file, the operating 
> system will generate a SIGNAL to your program
> (default is SIGIO )
> 
> check man 2 fcntl for more detailed explanation.
> 
> 
> rinku rathore wrote:
> > Hello,
> > Actually,I wanted specifically about the following
> > fcntl functions,listed below,here fd is file
> > descriptor
> > 
> > fcntl (fd, F_SETOWN, getpid());
> > 
> > fcntl (fd, F_SETFL,fcntl (fd, F_GETFL, NULL) |
> > O_ASYNC));
> > 
> > Rinku
> > 
> > 
> > 		
> > 
> > 
> > 		
> > __________________________________
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Re: corrected:what is fcntl function

[Suciu Flavius]

fcntl (fd, F_SETOWN, getpid());

the user of the program will became the owner of the opened file

fcntl (fd, F_SETFL, fcntl (fd, F_GETFL, NULL) | O_ASYNC));

when somebody are reading / writing or delete your file, the operating 
system will generate a SIGNAL to your program (default is SIGIO )

check man 2 fcntl for more detailed explanation.


rinku rathore wrote:
> Hello,
> Actually,I wanted specifically about the following
> fcntl functions,listed below,here fd is file
> descriptor
> 
> fcntl (fd, F_SETOWN, getpid());
> 
> fcntl (fd, F_SETFL,fcntl (fd, F_GETFL, NULL) |
> O_ASYNC));
> 
> Rinku
> 
> 
> 		
> 
> 
> 		
> __________________________________
> Do you Yahoo!?
> Yahoo! Mail is new and improved - Check it out!
> http://promotions.yahoo.com/new_mail
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> the body of a message to majordomo@vger.kernel.org
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>