Add opr/lock.h and tidy locking macros

[openafs.git] / src / opr / lockstub.h

diff --git a/src/opr/lockstub.h b/src/opr/lockstub.h
new file mode 100644 (file)
index 0000000..2db610b
--- /dev/null
+++ b/src/opr/lockstub.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2012 Your File System Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR `AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*!
+ * This is a set of stub defines that can be included by LWP processes to
+ * disable the pthread locking macros, and typedefs
+ */
+
+#ifndef OPENAFS_OPR_LOCKSTUB_H
+#define OPENAFS_OPR_LOCKSTUB_H 1
+
+# ifdef AFS_PTHREAD_ENV
+#  error "Do not use the opr/lockstub.h header with pthreaded code"
+# endif
+
+typedef int opr_cv_t;
+
+# define opr_mutex_init(mutex)
+# define opr_mutex_destroy(mutex)
+# define opr_mutex_enter(mutex)
+# define opr_mutex_exit(mutex)
+# define opr_mutex_tryenter(mutex) (1)
+# define opr_cv_init(condvar)
+# define opr_cv_destroy(condvar)
+# define opr_cv_wait(condvar, mutex)
+# define opr_cv_timedwait(condvar, mutex, timeout)
+# define opr_cv_signal(condvar)
+# define opr_cv_broadcast(condvar)
+#endif