diff options
author | Luca Muscariello <lumuscar+fdio@cisco.com> | 2019-01-17 13:47:57 +0100 |
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committer | Luca Muscariello <lumuscar+fdio@cisco.com> | 2019-01-17 16:32:51 +0100 |
commit | bac3da61644515f05663789b122554dc77549286 (patch) | |
tree | 898210bc8e70371d77de7d446a26c5dd4fd1165a /libtransport/src/hicn/transport/core/memif_connector.h | |
parent | d5165246787301d0f13b646fda5e8a8567aef5ac (diff) |
This is the first commit of the hicn projectv19.01
Change-Id: I6f2544ad9b9f8891c88cc4bcce3cf19bd3cc863f
Signed-off-by: Luca Muscariello <lumuscar+fdio@cisco.com>
Diffstat (limited to 'libtransport/src/hicn/transport/core/memif_connector.h')
-rwxr-xr-x | libtransport/src/hicn/transport/core/memif_connector.h | 162 |
1 files changed, 162 insertions, 0 deletions
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__
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