diff --git a/third_party/f8/f8/app.cc b/third_party/f8/f8/app.cc
index e98e6c8..3bf30e0 100644
--- a/third_party/f8/f8/app.cc
+++ b/third_party/f8/f8/app.cc
@@ -18,6 +18,7 @@
 #include <a8/queue.h>
 #include <f8/timer.h>
 #include <f8/userapp.h>
+#include <f8/iomgr.h>
 
 static const int MAX_ZONE_ID = 100;
 static const int MAX_NODE_ID = 8;
@@ -77,6 +78,7 @@ namespace f8
 
             uuid_->SetMachineId((node_id_ - 1) * MAX_NODE_ID + instance_id_);
             InitLog();
+            f8::IoMgr::Instance()->Init();
             f8::MsgQueue::Instance()->Init();
             f8::Timer::Instance()->Init();
             f8::TGLog::Instance()->Init(user_app_->GetPkgName(), false, 0);
@@ -92,6 +94,7 @@ namespace f8
             f8::HttpClientPool::Instance()->UnInit();
             f8::Timer::Instance()->UnInit();
             f8::MsgQueue::Instance()->UnInit();
+            f8::IoMgr::Instance()->UnInit();
             UnInitLog();
 
             delete loop_cond_;
@@ -115,6 +118,7 @@ namespace f8
                     f8::MsgQueue::Instance()->Update();
                     DispatchNetMsg();
                     user_app->Update(delta_time);
+                    f8::IoMgr::Instance()->Update();
                     a8::tick_t end_tick = a8::XGetTickCount();
                     if (end_tick - begin_tick > max_run_delay_time_) {
                         max_run_delay_time_ = end_tick - begin_tick;
diff --git a/third_party/f8/f8/iomgr.cc b/third_party/f8/f8/iomgr.cc
new file mode 100644
index 0000000..a28ce69
--- /dev/null
+++ b/third_party/f8/f8/iomgr.cc
@@ -0,0 +1,63 @@
+#include <f8/internal/pch.h>
+
+#include <f8/iomgr.h>
+
+static const int IC_Max = 1;
+
+namespace f8
+{
+
+    IoMgr::IoMgr()
+    {
+
+    }
+
+    void IoMgr::Init()
+    {
+        for (int i = 0; i < IC_Max; ++i) {
+            io_contexts_.push_back(std::vector<std::shared_ptr<asio::io_context>>());
+            io_works_.push_back(std::vector<std::shared_ptr<asio::io_context::work>>());
+            auto& contexts = io_contexts_.at(i);
+            auto& works = io_works_.at(i);
+            auto c = std::make_shared<asio::io_context>();
+            auto w = std::make_shared<asio::io_context::work>(*c);
+            works.push_back(w);
+            contexts.push_back(c);
+            //new std::thread(&IoMgr::WorkerThreadProc, this, contexts.at(0));
+        }
+    }
+
+    void IoMgr::UnInit()
+    {
+
+    }
+
+    void IoMgr::Update()
+    {
+        for (auto type_io_contexts : io_contexts_) {
+            for (auto io_context : type_io_contexts) {
+                io_context->poll();
+            }
+        }
+    }
+
+    std::shared_ptr<asio::io_context> IoMgr::GetIoContext(int type)
+    {
+        if (type >= 0 && type < (int)io_contexts_.size()) {
+            auto& contexts = io_contexts_.at(type);
+            if (!contexts.empty()) {
+                return contexts.at(rand() % contexts.size());
+            }
+        }
+        return nullptr;
+    }
+
+    void IoMgr::WorkerThreadProc(std::shared_ptr<asio::io_context> io_context)
+    {
+        while (true) {
+            io_context->run();
+            io_context->reset();
+        }
+    }
+
+}
diff --git a/third_party/f8/f8/iomgr.h b/third_party/f8/f8/iomgr.h
new file mode 100644
index 0000000..d5603b7
--- /dev/null
+++ b/third_party/f8/f8/iomgr.h
@@ -0,0 +1,26 @@
+#pragma once
+
+#include <asio.hpp>
+
+namespace f8
+{
+
+    class IoMgr
+    {
+        A8_DECLARE_SINGLETON(IoMgr);
+    public:
+
+        void Init();
+        void UnInit();
+        void Update();
+
+    private:
+        std::shared_ptr<asio::io_context> GetIoContext(int type);
+        void WorkerThreadProc(std::shared_ptr<asio::io_context> io_context);
+
+    private:
+        std::vector<std::vector<std::shared_ptr<asio::io_context::work>>> io_works_;
+        std::vector<std::vector<std::shared_ptr<asio::io_context>>> io_contexts_;
+    };
+
+}
diff --git a/third_party/f8/f8/libf8.a b/third_party/f8/f8/libf8.a
new file mode 100644
index 0000000..32b00d7
Binary files /dev/null and b/third_party/f8/f8/libf8.a differ
diff --git a/third_party/f8/f8/tcpclient.cc b/third_party/f8/f8/tcpclient.cc
new file mode 100644
index 0000000..f939109
--- /dev/null
+++ b/third_party/f8/f8/tcpclient.cc
@@ -0,0 +1,198 @@
+#include <f8/internal/pch.h>
+
+#include <string.h>
+#include <assert.h>
+
+#include <f8/tcpclient.h>
+
+const int MAX_RECV_BUFFERSIZE = 1024 * 64;
+
+namespace f8
+{
+
+    TcpClient::TcpClient(std::shared_ptr<asio::io_context> io_context, const std::string& remote_ip, int remote_port)
+    {
+        io_context_ = io_context;
+        remote_address_ = remote_ip;
+        remote_port_ = remote_port;
+        endpoint_ = std::make_shared<asio::ip::tcp::endpoint>
+            (
+             asio::ip::address::from_string(remote_address_),
+              remote_port_
+             );
+        send_buffer_mutex_ = std::make_shared<std::mutex>();
+        socket_ = std::make_shared<asio::ip::tcp::socket>(*io_context);
+    }
+
+    TcpClient::~TcpClient()
+    {
+        Close();
+    }
+
+    void TcpClient::Open()
+    {
+        if (!IsActive()) {
+            SetActive(true);
+        }
+    }
+
+    void TcpClient::Close()
+    {
+        if (IsActive()) {
+            SetActive(false);
+        }
+    }
+
+    bool TcpClient::IsActive()
+    {
+        return actived_;
+    }
+
+    bool TcpClient::Connected()
+    {
+        return connected_;
+    }
+
+    void TcpClient::SendBuff(const char* buff, unsigned int bufflen)
+    {
+        //a8::XPrintf("SendBuff bufflen:%d\n", {bufflen});
+        if (bufflen > 0) {
+            a8::SendQueueNode* p = (a8::SendQueueNode*)malloc(sizeof(a8::SendQueueNode));
+            memset(p, 0, sizeof(a8::SendQueueNode));
+            p->buff = (char*)malloc(bufflen);
+            memmove(p->buff, buff, bufflen);
+            p->bufflen = bufflen;
+            send_buffer_mutex_->lock();
+            if (bot_node_) {
+                bot_node_->next = p;
+                bot_node_ = p;
+            }else{
+                top_node_ = p;
+                bot_node_ = p;
+            }
+            send_buffer_mutex_->unlock();
+            DoSend();
+        }
+    }
+
+    void TcpClient::SetActive(bool active)
+    {
+        if (active) {
+            if (!IsActive()) {
+                ActiveStart();
+            }
+        } else {
+            if (IsActive()) {
+                ActiveStop();
+            }
+        }
+    }
+
+    void TcpClient::ActiveStart()
+    {
+        actived_ = true;
+        connected_ = false;
+        socket_->async_connect
+            (*endpoint_,
+             [this] (const asio::error_code& ec)
+             {
+                 HandleConnect(ec);
+             });
+    }
+
+    void TcpClient::ActiveStop()
+    {
+        actived_ = true;
+        connected_ = false;
+    }
+
+    void TcpClient::HandleConnect(const asio::error_code& err)
+    {
+        if (err) {
+            actived_ = false;
+            connected_ = false;
+            if (on_error) {
+                on_error(this, err.value());
+            }
+            return;
+        } else {
+            connected_ = true;
+            if (on_connect) {
+                on_connect(this);
+            }
+            DoRead();
+        }
+    }
+
+    void TcpClient::DoRead()
+    {
+        socket_->async_read_some
+            (asio::buffer(buffer_),
+             [this](std::error_code ec, std::size_t bytes_transferred)
+             {
+                 if (!ec) {
+                     if (on_socketread) {
+                         on_socketread(this, buffer_.data(), bytes_transferred);
+                     }
+                     DoRead();
+                 } else {
+                     a8::XPrintf("DoRead error %s\n", {ec.message()});
+                     actived_ = false;
+                     connected_ = false;
+                     if (on_disconnect) {
+                         on_disconnect(this, ec.value());
+                     }
+                 }
+             });
+    }
+
+    void TcpClient::DoSend()
+    {
+        if (!work_node_) {
+            send_buffer_mutex_->lock();
+            work_node_ = top_node_;
+            top_node_ = nullptr;
+            bot_node_ = nullptr;
+            send_buffer_mutex_->unlock();
+        }
+        if (work_node_ && !sending_) {
+            sending_ = true;
+            char* buf = work_node_->buff + work_node_->sent_bytes;
+            int buf_len = work_node_->bufflen - work_node_->sent_bytes;
+            asio::async_write
+                (*socket_,
+                 asio::buffer(buf, buf_len),
+                 [this] (const asio::error_code& ec, std::size_t bytes_transferred)
+                 {
+                     if (!ec) {
+                         send_buffer_mutex_->lock();
+                         if (work_node_) {
+                             work_node_->sent_bytes += bytes_transferred;
+                             if (work_node_->sent_bytes >= work_node_->bufflen) {
+                                 auto pdelnode = work_node_;
+                                 work_node_ = work_node_->next;
+                                 free(pdelnode->buff);
+                                 free((void*)pdelnode);
+                             }
+                             if (!work_node_) {
+                                 sending_ = false;
+                             }
+                             send_buffer_mutex_->unlock();
+                             DoSend();
+                             return;
+                         }
+                         send_buffer_mutex_->unlock();
+                     } else {
+                         a8::XPrintf("DoSend error %s\n", {ec.message()});
+                         actived_ = false;
+                         connected_ = false;
+                         if (on_disconnect) {
+                             on_disconnect(this, ec.value());
+                         }
+                     }
+                 });
+
+        }
+    }
+
+}
diff --git a/third_party/f8/f8/tcpclient.h b/third_party/f8/f8/tcpclient.h
new file mode 100644
index 0000000..c7bcf29
--- /dev/null
+++ b/third_party/f8/f8/tcpclient.h
@@ -0,0 +1,56 @@
+#pragma once
+
+#include <asio.hpp>
+
+using asio::ip::tcp;
+
+namespace f8
+{
+
+    class TcpClient
+    {
+    public:
+        std::function<void (f8::TcpClient*, int)> on_error;
+        std::function<void (f8::TcpClient*)> on_connect;
+        std::function<void (f8::TcpClient*, int)> on_disconnect;
+        std::function<void (f8::TcpClient*, char*, unsigned int)> on_socketread;
+        TcpClient(std::shared_ptr<asio::io_context> io_context,
+                      const std::string& remote_ip,
+                      int remote_port);
+        virtual ~TcpClient();
+        const std::string& GetRemoteAddress() { return remote_address_; }
+        int GetRemotePort() { return remote_port_; }
+
+        void Open();
+        void Close();
+        bool IsActive();
+        bool Connected();
+        void SendBuff(const char* buff, unsigned int bufflen);
+
+    private:
+        void HandleConnect(const asio::error_code& err);
+        void DoRead();
+        void DoSend();
+
+    private:
+        std::shared_ptr<asio::io_context> io_context_;
+        std::string remote_address_;
+        int remote_port_ = 0;
+
+        std::shared_ptr<asio::ip::tcp::endpoint> endpoint_;
+        std::shared_ptr<asio::ip::tcp::socket> socket_;
+        volatile bool actived_ = false;
+        volatile bool connected_ = false;
+        std::shared_ptr<std::mutex> send_buffer_mutex_;
+        a8::SendQueueNode *top_node_ = nullptr;
+        a8::SendQueueNode *bot_node_ = nullptr;
+        volatile a8::SendQueueNode *work_node_ = nullptr;
+        volatile bool sending_ = false;
+        std::array<char, 1024 * 64> buffer_;
+
+        void SetActive(bool active);
+        void ActiveStart();
+        void ActiveStop();
+    };
+
+}