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-rw-r--r--contrib/qemu/util/module.c81
1 files changed, 81 insertions, 0 deletions
diff --git a/contrib/qemu/util/module.c b/contrib/qemu/util/module.c
new file mode 100644
index 00000000000..7acc33d076a
--- /dev/null
+++ b/contrib/qemu/util/module.c
@@ -0,0 +1,81 @@
+/*
+ * QEMU Module Infrastructure
+ *
+ * Copyright IBM, Corp. 2009
+ *
+ * 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.
+ *
+ * Contributions after 2012-01-13 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
+ */
+
+#include "qemu-common.h"
+#include "qemu/queue.h"
+#include "qemu/module.h"
+
+typedef struct ModuleEntry
+{
+ void (*init)(void);
+ QTAILQ_ENTRY(ModuleEntry) node;
+} ModuleEntry;
+
+typedef QTAILQ_HEAD(, ModuleEntry) ModuleTypeList;
+
+static ModuleTypeList init_type_list[MODULE_INIT_MAX];
+
+static void init_types(void)
+{
+ static int inited;
+ int i;
+
+ if (inited) {
+ return;
+ }
+
+ for (i = 0; i < MODULE_INIT_MAX; i++) {
+ QTAILQ_INIT(&init_type_list[i]);
+ }
+
+ inited = 1;
+}
+
+
+static ModuleTypeList *find_type(module_init_type type)
+{
+ ModuleTypeList *l;
+
+ init_types();
+
+ l = &init_type_list[type];
+
+ return l;
+}
+
+void register_module_init(void (*fn)(void), module_init_type type)
+{
+ ModuleEntry *e;
+ ModuleTypeList *l;
+
+ e = g_malloc0(sizeof(*e));
+ e->init = fn;
+
+ l = find_type(type);
+
+ QTAILQ_INSERT_TAIL(l, e, node);
+}
+
+void module_call_init(module_init_type type)
+{
+ ModuleTypeList *l;
+ ModuleEntry *e;
+
+ l = find_type(type);
+
+ QTAILQ_FOREACH(e, l, node) {
+ e->init();
+ }
+}