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+/* sema.h - definitions for semaphores
+ * Copyright (C) 2001 Werner Koch (dd9jn)
+ *
+ * This file is part of GPGME.
+ *
+ * GPGME is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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 *private;
+};
+
+#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).private = 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 */
+
+
+
+
+