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/* -*- C++ -*-; c-basic-offset: 4; indent-tabs-mode: nil */
/*
* Copyright (c) 2017 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
#pragma once
#ifndef VPP_INSPECT_H
#define VPP_INSPECT_H
#include <map>
#include <sstream>
#include <string>
#include <uv.h>
#include <vector>
#include "vom/inspect.hpp"
namespace opflexagent
{
/**
* A means to inspect the state VPP has built, in total, and per-client
* To use do:
* socat - UNIX-CONNECT:/path/to/sock/in/opflex.conf
* and follow the instructions
*/
class VppInspect
{
public:
/**
* Constructor
*/
VppInspect(const std::string &sockname);
/**
* Destructor to tidyup socket resources
*/
~VppInspect();
private:
/**
* Call operator for running in the thread
*/
static void run(void *ctx);
/**
* A write request
*/
struct write_req_t
{
write_req_t(std::ostringstream &output);
~write_req_t();
uv_write_t req;
uv_buf_t buf;
};
/**
* Write a ostream to the client
*/
static void do_write(uv_stream_t *client, std::ostringstream &output);
/**
* Called on creation of a new connection
*/
static void on_connection(uv_stream_t *server, int status);
/**
* Call when data is written
*/
static void on_write(uv_write_t *req, int status);
/**
* Called when data is read
*/
static void
on_read(uv_stream_t *client, ssize_t nread, const uv_buf_t *buf);
/**
* Called to allocate buffer space for data to be read
*/
static void
on_alloc_buffer(uv_handle_t *handle, size_t size, uv_buf_t *buf);
/**
* Called to cleanup the thread and socket during destruction
*/
static void on_cleanup(uv_async_t *handle);
/**
* Async handle so we can wakeup the loop
*/
uv_async_t mAsync;
/**
* The libuv loop
*/
uv_loop_t mServerLoop;
/**
* The libuv thread context in which we run the loop
*/
uv_thread_t mServerThread;
/**
* The inspect unix domain socket name, from the config file
*/
std::string mSockName;
/**
* VPP inspect object to handle data read from the socket
*/
VOM::inspect mInspect;
};
};
/*
* Local Variables:
* eval: (c-set-style "llvm.org")
* End:
*/
#endif
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