From bac3da61644515f05663789b122554dc77549286 Mon Sep 17 00:00:00 2001
From: Luca Muscariello <lumuscar+fdio@cisco.com>
Date: Thu, 17 Jan 2019 13:47:57 +0100
Subject: This is the first commit of the hicn project

Change-Id: I6f2544ad9b9f8891c88cc4bcce3cf19bd3cc863f
Signed-off-by: Luca Muscariello <lumuscar+fdio@cisco.com>
---
 .../src/hicn/transport/core/memif_connector.h      | 162 +++++++++++++++++++++
 1 file changed, 162 insertions(+)
 create mode 100755 libtransport/src/hicn/transport/core/memif_connector.h

(limited to 'libtransport/src/hicn/transport/core/memif_connector.h')

diff --git a/libtransport/src/hicn/transport/core/memif_connector.h b/libtransport/src/hicn/transport/core/memif_connector.h
new file mode 100755
index 000000000..24c8ac16c
--- /dev/null
+++ b/libtransport/src/hicn/transport/core/memif_connector.h
@@ -0,0 +1,162 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <hicn/transport/config.h>
+#include <hicn/transport/core/connector.h>
+#include <hicn/transport/core/hicn_binary_api.h>
+#include <hicn/transport/portability/portability.h>
+#include <hicn/transport/utils/epoll_event_reactor.h>
+#include <hicn/transport/utils/fd_deadline_timer.h>
+#include <hicn/transport/utils/ring_buffer.h>
+
+#include <asio.hpp>
+#include <deque>
+#include <mutex>
+#include <thread>
+
+#ifdef __vpp__
+
+#define _Static_assert static_assert
+
+extern "C" {
+#include <memif/libmemif.h>
+};
+
+namespace transport {
+
+namespace core {
+
+typedef struct {
+  uint16_t index;
+  /* memif conenction handle */
+  memif_conn_handle_t conn;
+  /* transmit queue id */
+  uint16_t tx_qid;
+  /* tx buffers */
+  memif_buffer_t *tx_bufs;
+  /* allocated tx buffers counter */
+  /* number of tx buffers pointing to shared memory */
+  uint16_t tx_buf_num;
+  /* rx buffers */
+  memif_buffer_t *rx_bufs;
+  /* allcoated rx buffers counter */
+  /* number of rx buffers pointing to shared memory */
+  uint16_t rx_buf_num;
+  /* interface ip address */
+  uint8_t ip_addr[4];
+} memif_connection_t;
+
+#define APP_NAME "libtransport"
+#define IF_NAME "vpp_connection"
+
+#define MAX_MEMIF_BUFS 1024
+#define MEMIF_BUF_SIZE 2048
+#define MEMIF_LOG2_RING_SIZE 11
+
+class MemifConnector : public Connector {
+ public:
+  MemifConnector(PacketReceivedCallback &&receive_callback,
+                 OnReconnect &&on_reconnect_callback,
+                 asio::io_service &io_service,
+                 std::string app_name = "Libtransport");
+
+  ~MemifConnector() override;
+
+  void send(const Packet::MemBufPtr &packet) override;
+
+  void send(const uint8_t *packet, std::size_t len,
+            const PacketSentCallback &packet_sent = 0) override;
+
+  void close() override;
+
+  void connect(uint32_t memif_id, long memif_mode);
+
+  //  void runEventsLoop();
+
+  void enableBurst() override;
+
+  void state() override;
+
+  TRANSPORT_ALWAYS_INLINE uint32_t getMemifId() { return memif_id_; };
+
+ private:
+  void init();
+
+  int doSend();
+
+  int createMemif(uint32_t index, uint8_t mode, char *s);
+
+  uint32_t getMemifConfiguration();
+
+  int deleteMemif();
+
+  static int controlFdUpdate(int fd, uint8_t events);
+
+  static int onConnect(memif_conn_handle_t conn, void *private_ctx);
+
+  static int onDisconnect(memif_conn_handle_t conn, void *private_ctx);
+
+  static int onInterrupt(memif_conn_handle_t conn, void *private_ctx,
+                         uint16_t qid);
+
+  void threadMain();
+
+  int txBurst(uint16_t qid);
+
+  int bufferAlloc(long n, uint16_t qid);
+
+  void sendCallback(const std::error_code &ec);
+
+  void processInputBuffer();
+
+ private:
+  static utils::EpollEventReactor main_event_reactor_;
+  static std::unique_ptr<std::thread> main_worker_;
+
+  int epfd;
+  std::unique_ptr<std::thread> memif_worker_;
+  utils::EpollEventReactor event_reactor_;
+  volatile bool timer_set_;
+  std::unique_ptr<utils::FdDeadlineTimer> send_timer_;
+  asio::io_service &io_service_;
+  std::unique_ptr<asio::io_service::work> work_;
+  uint32_t packet_counter_;
+  memif_connection_t memif_connection_;
+  uint16_t tx_buf_counter_;
+
+  PacketRing input_buffer_;
+  volatile bool is_connecting_;
+  volatile bool is_reconnection_;
+  bool data_available_;
+  bool enable_burst_;
+  uint32_t memif_id_;
+  uint8_t memif_mode_;
+  std::string app_name_;
+  uint16_t transmission_index_;
+  PacketReceivedCallback receive_callback_;
+  OnReconnect on_reconnect_callback_;
+  utils::SpinLock write_msgs_lock_;
+  std::string socket_filename_;
+
+  static std::once_flag flag_;
+};
+
+}  // end namespace core
+
+}  // end namespace transport
+
+#endif  // __vpp__
\ No newline at end of file
-- 
cgit 1.2.3-korg