Re: [libvirt] [PATCH] threads: add one-time initialization support

mingw lacks the counterpart to PTHREAD_MUTEX_INITIALIZER, so the best we can do is portably expose once-only runtime initialization. * src/util/threads.h (virOnceControlPtr): New opaque type. (virOnceFunc): New callback type. (virOnce): New prototype. * src/util/threads-pthread.h (virOnceControl): Declare. (VIR_ONCE_CONTROL_INITIALIZER): Define. * src/util/threads-win32.h (virOnceControl) (VIR_ONCE_CONTROL_INITIALIZER): Likewise. * src/util/threads-pthread.c (virOnce): Implement in pthreads. * src/util/threads-win32.c (virOnce): Implement in WIN32. * src/libvirt_private.syms: Export it. +++ b/src/util/threads-win32.h @@ -1,7 +1,7 @@ /* * threads-win32.h basic thread synchronization primitives * - * Copyright (C) 2009 Red Hat, Inc. + * Copyright (C) 2009, 2011 Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public @@ -41,3 +41,12 @@ struct virThread { struct virThreadLocal { DWORD key; }; + +struct virOnceControl { + INIT_ONCE once; +};