1 files changed, 67 insertions, 0 deletions
diff --git a/src/sema.h b/src/sema.h
new file mode 100644
index 00000000..7d3870e9
--- /dev/null
+++ b/src/sema.h
@@ -0,0 +1,67 @@
+/* sema.h - Definitions for semaphores.
+   Copyright (C) 2000 Werner Koch (dd9jn)
+   Copyright (C) 2001, 2003, 2004, 2007 g10 Code GmbH
+
+   This file is part of GPGME.
+ 
+   GPGME is free software; you can redistribute it and/or modify it
+   under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of
+   the License, or (at your option) any later version.
+   
+   GPGME is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+   
+   You should have received a copy of the GNU Lesser General Public
+   License along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+   02111-1307, USA.  */
+
+#ifndef SEMA_H
+#define SEMA_H
+
+struct critsect_s
+{
+  const char *name;
+  void *priv;
+};
+
+#define DEFINE_GLOBAL_LOCK(name) \
+  struct critsect_s name = { #name, NULL }
+#define DEFINE_STATIC_LOCK(name) \
+  static struct critsect_s name  = { #name, NULL }
+
+#define DECLARE_LOCK(name) \
+  struct critsect_s name
+#define INIT_LOCK(a)			\
+  do					\
+    {					\
+      (a).name = #a;			\
+      (a).priv = NULL;			\
+    }					\
+  while (0)
+#define DESTROY_LOCK(name) _gpgme_sema_cs_destroy (&(name))
+                       
+
+#define LOCK(name)			\
+  do					\
+    {					\
+      _gpgme_sema_cs_enter (&(name));	\
+    }					\
+  while (0)
+
+#define UNLOCK(name)			\
+  do					\
+    {					\
+      _gpgme_sema_cs_leave (&(name));	\
+    }					\
+  while (0)
+
+void _gpgme_sema_subsystem_init (void);
+void _gpgme_sema_cs_enter (struct critsect_s *s);
+void _gpgme_sema_cs_leave (struct critsect_s *s);
+void _gpgme_sema_cs_destroy (struct critsect_s *s);
+
+#endif /* SEMA_H */