Hi, If I have a global socket file descriptor, can I call sendto and recvfrom on that file descriptor concurrently with out using semaphores around the call to sendto and recvfrom? What about for TCP sockets? Thanks Lee -- __________________________________________________________ Sign-up for your own personalized E-mail at Mail.com http://www.mail.com/?sr=signup CareerBuilder.com has over 400,000 jobs. Be smarter about your job search http://corp.mail.com/careers - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html