1 files changed, 70 insertions, 0 deletions
diff --git a/camel/camel-lock-helper.h b/camel/camel-lock-helper.h
new file mode 100644
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+++ b/camel/camel-lock-helper.h
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+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
+ *
+ * Author: Michael Zucchi <notzed@helixcode.com>
+ *
+ * Copyright (C) 1999 Helix Code (http://www.helixcode.com/).
+ *
+ * This program 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.
+ *
+ * This program 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
+ */
+
+/* defines protocol for lock helper process ipc */
+
+#ifndef _CAMEL_LOCK_HELPER_H
+#define _CAMEL_LOCK_HELPER_H
+
+#ifdef __cplusplus
+extern "C" {
+#pragma }
+#endif /* __cplusplus }*/
+
+#include <glib.h>
+
+struct _CamelLockHelperMsg {
+	guint32 magic;
+	guint32 seq;
+	guint32 id;
+	guint32 data;
+};
+
+/* magic values */
+enum {
+	CAMEL_LOCK_HELPER_MAGIC = 0xABADF00D,
+	CAMEL_LOCK_HELPER_RETURN_MAGIC = 0xDEADBEEF
+};
+
+/* return status */
+enum {
+	CAMEL_LOCK_HELPER_STATUS_OK = 0,
+	CAMEL_LOCK_HELPER_STATUS_PROTOCOL,
+	CAMEL_LOCK_HELPER_STATUS_NOMEM,
+	CAMEL_LOCK_HELPER_STATUS_SYSTEM,
+	CAMEL_LOCK_HELPER_STATUS_INVALID, /* not allowed to lock/doesn't exist etc */
+};
+
+/* commands */
+enum {
+	CAMEL_LOCK_HELPER_LOCK = 0xf0f,
+	CAMEL_LOCK_HELPER_UNLOCK = 0xf0f0,
+};
+
+/* seconds between lock refreshes */
+#define CAMEL_DOT_LOCK_REFRESH (30)
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* !_CAMEL_LOCK_HELPER_H */