initial commit of lk (little kernel) project
diff --git a/lib/lwip/src/include/lwip/api_msg.h b/lib/lwip/src/include/lwip/api_msg.h
new file mode 100644
index 0000000..3fef3dd
--- /dev/null
+++ b/lib/lwip/src/include/lwip/api_msg.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * 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.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Adam Dunkels <adam@sics.se>
+ *
+ */
+#ifndef __LWIP_API_MSG_H__
+#define __LWIP_API_MSG_H__
+
+#include "lwip/opt.h"
+#include "lwip/pbuf.h"
+#include "lwip/sys.h"
+
+#include "lwip/ip.h"
+
+#include "lwip/udp.h"
+#include "lwip/tcp.h"
+
+#include "lwip/api.h"
+
+enum api_msg_type {
+ API_MSG_NEWCONN,
+ API_MSG_DELCONN,
+
+ API_MSG_BIND,
+ API_MSG_CONNECT,
+ API_MSG_DISCONNECT,
+
+ API_MSG_LISTEN,
+ API_MSG_ACCEPT,
+
+ API_MSG_SEND,
+ API_MSG_RECV,
+ API_MSG_WRITE,
+
+ API_MSG_CLOSE,
+
+ API_MSG_MAX
+};
+
+struct api_msg_msg {
+ struct netconn *conn;
+ enum netconn_type conntype;
+ union {
+ struct pbuf *p;
+ struct {
+ struct ip_addr *ipaddr;
+ u16_t port;
+ } bc;
+ struct {
+ void *dataptr;
+ u16_t len;
+ u8_t copy;
+ } w;
+ sys_mbox_t mbox;
+ u16_t len;
+ } msg;
+};
+
+struct api_msg {
+ enum api_msg_type type;
+ struct api_msg_msg msg;
+};
+
+void api_msg_input(struct api_msg *msg);
+void api_msg_post(struct api_msg *msg);
+
+#endif /* __LWIP_API_MSG_H__ */
+