1 files changed, 73 insertions, 0 deletions
diff --git a/src/libmowgli/module/interface.c b/src/libmowgli/module/interface.c
new file mode 100644
index 0000000..a552605
--- /dev/null
+++ b/src/libmowgli/module/interface.c
@@ -0,0 +1,73 @@
+/*
+ * libmowgli: A collection of useful routines for programming.
+ * module.h: Loadable modules.
+ *
+ * Copyright (c) 2007, 2014 William Pitcock <william@dereferenced.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice is present in all copies.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "mowgli.h"
+
+static mowgli_patricia_t *mowgli_interface_dict = NULL;
+static mowgli_mutex_t mowgli_interface_lock;
+
+void
+mowgli_interface_bootstrap(void)
+{
+	mowgli_interface_dict = mowgli_patricia_create(NULL);
+	mowgli_mutex_init(&mowgli_interface_lock);
+}
+
+void
+mowgli_interface_register(mowgli_interface_t *iface)
+{
+	mowgli_interface_base_t *base_iface = iface;
+
+	mowgli_mutex_lock(&mowgli_interface_lock);
+	mowgli_patricia_add(mowgli_interface_dict, base_iface->id, iface);
+	mowgli_mutex_unlock(&mowgli_interface_lock);
+}
+
+void
+mowgli_interface_unregister(mowgli_interface_t *iface)
+{
+	mowgli_interface_base_t *base_iface = iface;
+
+	mowgli_mutex_lock(&mowgli_interface_lock);
+	mowgli_patricia_delete(mowgli_interface_dict, base_iface->id);
+	mowgli_mutex_unlock(&mowgli_interface_lock);
+}
+
+mowgli_interface_t *
+mowgli_interface_get(const char *id, uint32_t abirev)
+{
+	mowgli_interface_base_t *base_iface;
+
+	mowgli_mutex_lock(&mowgli_interface_lock);
+
+	base_iface = mowgli_patricia_retrieve(mowgli_interface_dict, id);
+	if (base_iface->abirev != abirev)
+	{
+		mowgli_log("requested interface %s, abi mismatch %d != %d", id, abirev, base_iface->abirev);
+		base_iface = NULL;
+	}
+
+	mowgli_mutex_unlock(&mowgli_interface_lock);
+
+	return base_iface;
+}