diff options
Diffstat (limited to 'src/rpc-server/src/trex_rpc_req_resp.cpp')
-rw-r--r-- | src/rpc-server/src/trex_rpc_req_resp.cpp | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/src/rpc-server/src/trex_rpc_req_resp.cpp b/src/rpc-server/src/trex_rpc_req_resp.cpp new file mode 100644 index 00000000..a64129aa --- /dev/null +++ b/src/rpc-server/src/trex_rpc_req_resp.cpp @@ -0,0 +1,112 @@ +/* + Itay Marom + Cisco Systems, Inc. +*/ + +/* +Copyright (c) 2015-2015 Cisco Systems, Inc. + +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. +*/ + +#include <trex_rpc_server_api.h> +#include <trex_rpc_req_resp.h> + +#include <unistd.h> +#include <sstream> +#include <iostream> + +#include <zmq.h> +#include <json/json.h> + + +TrexRpcServerReqRes::TrexRpcServerReqRes(TrexRpcServerArray::protocol_type_e protocol, uint16_t port) : TrexRpcServerInterface(protocol, port) { + /* ZMQ is not thread safe - this should be outside */ + m_context = zmq_ctx_new(); +} + +void TrexRpcServerReqRes::_rpc_thread_cb() { + std::stringstream ss; + + // Socket to talk to clients + m_socket = zmq_socket (m_context, ZMQ_REP); + + switch (m_protocol) { + case TrexRpcServerArray::RPC_PROT_TCP: + ss << "tcp://*:"; + break; + default: + throw TrexRpcException("unknown protocol for RPC"); + } + + ss << m_port; + + int rc = zmq_bind (m_socket, ss.str().c_str()); + if (rc != 0) { + throw TrexRpcException("Unable to start ZMQ server at: " + ss.str()); + } + + printf("listening on %s\n", ss.str().c_str()); + + /* server main loop */ + while (m_is_running) { + int msg_size = zmq_recv (m_socket, m_msg_buffer, sizeof(m_msg_buffer), 0); + + if (msg_size == -1) { + /* normal shutdown and zmq_term was called */ + if (errno == ETERM) { + break; + } else { + throw TrexRpcException("Unhandled error of zmq_recv"); + } + } + + handle_request(m_msg_buffer, msg_size); + } + + /* must be done from the same thread */ + zmq_close(m_socket); +} + +void TrexRpcServerReqRes::_stop_rpc_thread() { + /* by calling zmq_term we signal the blocked thread to exit */ + zmq_term(m_context); + +} + +void TrexRpcServerReqRes::handle_request(const uint8_t *msg, uint32_t msg_size) { + Json::Reader reader; + Json::Value request; + std::string response; + + /* parse the json request */ + bool rc = reader.parse( (const char *)msg, (const char *)msg + msg_size, request, false); + if (!rc) { + throw TrexRpcException("Unable to decode JSON RPC request: " + std::string( (const char *)msg, msg_size)); + } + std::cout << request << std::endl; + + #if 0 + TrexJsonRpcRequest rpc_request(msg, msg_size); + + rpc_request->parse(); + rpc_request->execute(); + + rpc_request->get_response(response); + + zmq_send(m_socket, response, response.size(), 0); + #endif + + zmq_send(m_socket, "ACK", 3 ,0); + +} |