On 3/23/07, xpeng at buffalo.edu <xpeng at buffalo.edu> wrote: > If I want to use mtx_unlock for some threads, should I use mtx_lock() > before? I admit, I don't understand your question, but anyway: man 9 mutex -- Pietro Cerutti - ASCII Ribbon Campaign - against HTML e-mail and proprietary attachments www.asciiribbon.org