1 files changed, 102 insertions, 0 deletions
diff --git a/tools/libxen/include/xen_event.h b/tools/libxen/include/xen_event.h
new file mode 100644
index 0000000000..1e171b8d26
--- /dev/null
+++ b/tools/libxen/include/xen_event.h
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2006-2007, XenSource Inc.
+ *
+ * This library 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.
+ *
+ * This library 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 library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+
+#ifndef XEN_EVENT_H
+#define XEN_EVENT_H
+
+#include "xen_common.h"
+#include "xen_event_decl.h"
+#include "xen_event_operation.h"
+#include "xen_string_set.h"
+
+
+/*
+ * The event class.
+ * 
+ * Asynchronous event registration and handling.
+ */
+
+
+
+typedef struct xen_event_record
+{
+    int64_t id;
+    time_t timestamp;
+    char *class;
+    enum xen_event_operation operation;
+    char *ref;
+    char *obj_uuid;
+} xen_event_record;
+
+/**
+ * Allocate a xen_event_record.
+ */
+extern xen_event_record *
+xen_event_record_alloc(void);
+
+/**
+ * Free the given xen_event_record, and all referenced values.  The
+ * given record must have been allocated by this library.
+ */
+extern void
+xen_event_record_free(xen_event_record *record);
+
+
+typedef struct xen_event_record_set
+{
+    size_t size;
+    xen_event_record *contents[];
+} xen_event_record_set;
+
+/**
+ * Allocate a xen_event_record_set of the given size.
+ */
+extern xen_event_record_set *
+xen_event_record_set_alloc(size_t size);
+
+/**
+ * Free the given xen_event_record_set, and all referenced values.  The
+ * given set must have been allocated by this library.
+ */
+extern void
+xen_event_record_set_free(xen_event_record_set *set);
+
+
+/**
+ * Registers this session with the event system.  Specifying the empty
+ * list will register for all classes.
+ */
+extern bool
+xen_event_register(xen_session *session, struct xen_string_set *classes);
+
+
+/**
+ * Unregisters this session with the event system.
+ */
+extern bool
+xen_event_unregister(xen_session *session, struct xen_string_set *classes);
+
+
+/**
+ * Blocking call which returns a (possibly empty) batch of events.
+ */
+extern bool
+xen_event_next(xen_session *session, struct xen_event_record_set **result);
+
+
+#endif