@@ -104,6 +104,7 @@ common-obj-$(CONFIG_VNC_TLS) += vnc-tls.o vnc-auth-vencrypt.o
common-obj-$(CONFIG_VNC_SASL) += vnc-auth-sasl.o
common-obj-$(CONFIG_COCOA) += cocoa.o
common-obj-$(CONFIG_IOTHREAD) += qemu-thread.o
+common-obj-y += notify.o
slirp-obj-y = cksum.o if.o ip_icmp.o ip_input.o ip_output.o
slirp-obj-y += slirp.o mbuf.o misc.o sbuf.o socket.o tcp_input.o tcp_output.o
new file mode 100644
@@ -0,0 +1,39 @@
+/*
+ * Notifier lists
+ *
+ * Copyright IBM, Corp. 2010
+ *
+ * Authors:
+ * Anthony Liguori <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu-common.h"
+#include "notify.h"
+
+void notifier_list_init(NotifierList *list)
+{
+ QTAILQ_INIT(&list->notifiers);
+}
+
+void notifier_list_add(NotifierList *list, Notifier *notifier)
+{
+ QTAILQ_INSERT_HEAD(&list->notifiers, notifier, node);
+}
+
+void notifier_list_remove(NotifierList *list, Notifier *notifier)
+{
+ QTAILQ_REMOVE(&list->notifiers, notifier, node);
+}
+
+void notifier_list_notify(NotifierList *list)
+{
+ Notifier *notifier, *next;
+
+ QTAILQ_FOREACH_SAFE(notifier, &list->notifiers, node, next) {
+ notifier->notify(notifier);
+ }
+}
new file mode 100644
@@ -0,0 +1,43 @@
+/*
+ * Notifier lists
+ *
+ * Copyright IBM, Corp. 2010
+ *
+ * Authors:
+ * Anthony Liguori <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef QEMU_NOTIFY_H
+#define QEMU_NOTIFY_H
+
+#include "qemu-queue.h"
+
+typedef struct Notifier Notifier;
+
+struct Notifier
+{
+ void (*notify)(Notifier *notifier);
+ QTAILQ_ENTRY(Notifier) node;
+};
+
+typedef struct NotifierList
+{
+ QTAILQ_HEAD(, Notifier) notifiers;
+} NotifierList;
+
+#define NOTIFIER_LIST_INITIALIZER(head) \
+ { QTAILQ_HEAD_INITIALIZER((head).notifiers) }
+
+void notifier_list_init(NotifierList *list);
+
+void notifier_list_add(NotifierList *list, Notifier *notifier);
+
+void notifier_list_remove(NotifierList *list, Notifier *notifier);
+
+void notifier_list_notify(NotifierList *list);
+
+#endif
Notifiers are data-less callbacks and a notifier list is a list of registered notifiers that all are interested in a particular event. We'll use this in a few patches to implement mouse change notification. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> --- v1 -> v2 - Do not do memory allocations by placing list nodes in notifier --- Makefile.objs | 1 + notify.c | 39 +++++++++++++++++++++++++++++++++++++++ notify.h | 43 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 83 insertions(+), 0 deletions(-) create mode 100644 notify.c create mode 100644 notify.h