Is it possible to use file descriptor after main returns

arun.raj · 04-22-2009, 03:36 AM

Hello All,

I want to use the file descriptor opened by application_1 in another application_2, i.e

./application_1 :
main()
{
fd_1 = open( file );
return fd_1;
}

./application_2 fd_1
main()
{
ret = read( fd_1 );
return fd;
}

My concern is once application_1 main returns all open fds will be closed right ?

Thanks in advance .

Thanks,

Sergei Steshenko · 04-22-2009, 05:24 AM

Do you want to organize IPC (Inter-Process-Communications) ?

bigearsbilly · 04-22-2009, 06:10 AM

of course.
all files are closed on exit.

jisjis · 04-23-2009, 06:24 AM

Quote:

Originally Posted by arun.raj

Hello All,

I want to use the file descriptor opened by application_1 in another application_2, i.e

./application_1 :
main()
{
fd_1 = open( file );
return fd_1;
}

./application_2 fd_1
main()
{
ret = read( fd_1 );
return fd;
}

My concern is once application_1 main returns all open fds will be closed right ?

Thanks in advance .

Thanks,

Why dont you write the fd_1 = open( file ); bit in your application_2 itself ?

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