From 2c1e8ec448a1039ab9a46bce4c959e6ec3cefeb8 Mon Sep 17 00:00:00 2001
From: Determinant <ted.sybil@gmail.com>
Date: Tue, 13 Nov 2018 18:20:08 -0500
Subject: working on p2p; switch to libuv (libevent sucks in multi-threading)

---
 src/conn.cpp | 49 ++++++++++++++++++++++++++++---------------------
 1 file changed, 28 insertions(+), 21 deletions(-)

(limited to 'src/conn.cpp')

diff --git a/src/conn.cpp b/src/conn.cpp
index 7b7c699..f2922d8 100644
--- a/src/conn.cpp
+++ b/src/conn.cpp
@@ -46,8 +46,8 @@ ConnPool::Conn::operator std::string() const {
 
 /* the following two functions are executed by exactly one worker per Conn object */
 
-void ConnPool::Conn::send_data(evutil_socket_t fd, short events) {
-    if (!(events & EV_WRITE)) return;
+void ConnPool::Conn::send_data(int fd, int events) {
+    if (!(events & Event::WRITE)) return;
     auto conn = self(); /* pin the connection */
     ssize_t ret = seg_buff_size;
     for (;;)
@@ -77,7 +77,7 @@ void ConnPool::Conn::send_data(evutil_socket_t fd, short events) {
                     bytearray_t(buff_seg.begin() + ret, buff_seg.end()));
             /* wait for the next write callback */
             ready_send = false;
-            ev_write.add();
+            //ev_write.add();
             return;
         }
     }
@@ -85,8 +85,8 @@ void ConnPool::Conn::send_data(evutil_socket_t fd, short events) {
     ready_send = true;
 }
 
-void ConnPool::Conn::recv_data(evutil_socket_t fd, short events) {
-    if (!(events & EV_READ)) return;
+void ConnPool::Conn::recv_data(int fd, int events) {
+    if (!(events & Event::READ)) return;
     auto conn = self(); /* pin the connection */
     ssize_t ret = seg_buff_size;
     while (ret == (ssize_t)seg_buff_size)
@@ -105,13 +105,14 @@ void ConnPool::Conn::recv_data(evutil_socket_t fd, short events) {
         }
         if (ret == 0)
         {
+            //SALTICIDAE_LOG_INFO("recv(%d) terminates", fd, strerror(errno));
             terminate();
             return;
         }
         buff_seg.resize(ret);
         recv_buffer.push(std::move(buff_seg));
     }
-    ev_read.add();
+    //ev_read.add();
     on_read();
 }
 
@@ -121,7 +122,7 @@ void ConnPool::Conn::terminate() {
     cpool->post_terminate(fd);
 }
 
-void ConnPool::accept_client(evutil_socket_t fd, short) {
+void ConnPool::accept_client(int fd, int) {
     int client_fd;
     struct sockaddr client_addr;
     socklen_t addr_size = sizeof(struct sockaddr_in);
@@ -151,7 +152,7 @@ void ConnPool::accept_client(evutil_socket_t fd, short) {
     }
 }
 
-void ConnPool::Conn::conn_server(evutil_socket_t fd, short events) {
+void ConnPool::Conn::conn_server(int fd, int events) {
     auto conn = self(); /* pin the connection */
     if (send(fd, "", 0, MSG_NOSIGNAL) == 0)
     {
@@ -163,7 +164,7 @@ void ConnPool::Conn::conn_server(evutil_socket_t fd, short events) {
     }
     else
     {
-        if (events & EV_TIMEOUT)
+        if (events & Event::TIMEOUT)
             SALTICIDAE_LOG_INFO("%s connect timeout", std::string(*this).c_str());
         terminate();
         return;
@@ -196,12 +197,8 @@ void ConnPool::listen(NetAddr listen_addr) {
         throw ConnPoolError(std::string("binding error"));
     if (::listen(listen_fd, max_listen_backlog) < 0)
         throw ConnPoolError(std::string("listen error"));
-    {
-        std::lock_guard<std::mutex> _(dsp_ec_mlock);
-        ev_listen = Event(dispatcher_ec, listen_fd, EV_READ | EV_PERSIST,
-                std::bind(&ConnPool::accept_client, this, _1, _2));
-        ev_listen.add();
-    }
+    auto dcmd = new DspAcceptListen(listen_fd);
+    write(dlisten_fd[1], &dcmd, sizeof(dcmd));
     SALTICIDAE_LOG_INFO("listening to %u", ntohs(listen_addr.port));
 }
 
@@ -237,12 +234,8 @@ ConnPool::conn_t ConnPool::_connect(const NetAddr &addr) {
     }
     else
     {
-        {
-            std::lock_guard<std::mutex> _(dsp_ec_mlock);
-            conn->ev_connect = Event(dispatcher_ec, fd, EV_WRITE,
-                        std::bind(&Conn::conn_server, conn.get(), _1, _2));
-            conn->ev_connect.add_with_timeout(conn_server_timeout);
-        }
+        auto dcmd = new DspConnectListen(conn);
+        write(dlisten_fd[1], &dcmd, sizeof(dcmd));
         add_conn(conn);
         SALTICIDAE_LOG_INFO("created %s", std::string(*conn).c_str());
     }
@@ -271,4 +264,18 @@ ConnPool::conn_t ConnPool::add_conn(const conn_t &conn) {
     return pool.insert(std::make_pair(conn->fd, conn)).first->second;
 }
 
+void ConnPool::_accept_listen(int listen_fd) {
+    std::lock_guard<std::mutex> _(cp_mlock);
+    ev_listen = Event(dispatcher_ec, listen_fd, Event::READ,
+                        std::bind(&ConnPool::accept_client, this, _1, _2));
+    ev_listen.add();
+}
+
+void ConnPool::_connect_listen(const conn_t &conn) {
+    std::lock_guard<std::mutex> _(cp_mlock);
+    conn->ev_connect = Event(dispatcher_ec, conn->fd, Event::WRITE,
+                        std::bind(&Conn::conn_server, conn.get(), _1, _2));
+    conn->ev_connect.add_with_timeout(conn_server_timeout);
+}
+
 }
-- 
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