[Log4cplus-devel] Socket close hangs

[palladin <p-a...@ya...>]

Dear log4cplus devels,
log4cplus 1.1.1-RC4 
<https://sourceforge.net/projects/log4cplus/files/log4cplus-stable/1.1.1/>
Linux version 2.6.32-279.22.1.37.0.el6.x86_64 (abuild@noriko) (gcc 
version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) )

My application has hung after it have used log4cplus::helpers::Socket 
from log4cplus::helpers::ServerSocket::accept,e.g.
log4cplus::helpers::Socket clientSocket = mServerSocket.accept();
clientSocket was put into log4cplus::thread::AbstractThread worker. 
Client socket was used in AbstractThread like Socket::read - this is 
blocking call and the root of issue.

Then my application worked for some time  and at the end I did 
clientSocket.close() from main thread.
Due to the fact that log4cplus::helpers::Socket::read is blocking call - 
my application has hung on AbstractThread::join call.

I would like to suggest a fiew fixes to this issue:
1) add non-blocking stuff to log4cplus::helpers::Socket - select or poll.
2) add to log4cplus::helpers::Socket interface system call shutdown( man 
2 shutdown ).

Sincerely,
Taras Shypytiak.