(_cygtls::signal_exit): ...here. Close my_readsig and comment on why. * pinfo.cc (pinfo::exit): Move sigproc_terminate earlier. Set exiting flag in lock_process. * sigproc.cc (my_readsig): Make global. * sync.cc (muto::exiting_thread): Delete. (muto::acquire): Delete #if 0'ed code. * sync.h (muto::exiting_thread): Delete. (set_exiting_thread): Ditto. (lock_process::lock_process): Don't worry about setting the exiting thread since it had no meaning.
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