try using non-blocking sockets may be the send is blocking i recently faced this problem -SIGTERM amit ----- Original Message ----- From: <Abhijit.Vaidya@asu.edu> To: <kernelnewbies@nl.linux.org> Sent: Thursday, March 18, 2004 4:50 AM Subject: Question regarding pthreads and sockets > hi all, > > I am working on a client-server simulation using pthreads. The client and > server processes have multiple threads. The main thread creates those using > pthread_create (using default attributes). The server has 3 threads. One of > those 3 threads is a server in turn that listens on a port using blocking > accept(TCP Socket). After request comes it creates another thread that serves > all client requests. The client is also a thread created by initial thread > that connects to the server thread and sends some messages. The messages are > of size around 110 bytes each. After the message is sent the client thread > waits for the acknowledgement from the server thread (using blocking receive) > and then sends the next message. > > The problem I am facing is, for around 1000 messages or so the system works > perfectly well. For each of the message the client sends the server threads > sends the correct response. However if the number of messages increase, the > client thread hangs and the server thread (that was serving the request) is > never scheduled back (some other thread is scheduled due to the service thread > being blocked permenantly). My question is, is it related to the pthread > paramters (should I change something in pthread parameters to solve the > problem) or it is the socket parameters that are hampering my program? > > Thanks in advance, > Abhijit Vaidya > > > > -- > Kernelnewbies: Help each other learn about the Linux kernel. > Archive: http://mail.nl.linux.org/kernelnewbies/ > FAQ: http://kernelnewbies.org/faq/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
