Глобальная переделка UTCPStream и перевод ModbusTCPXXX на использование

configure.ac

@@ -41,6 +41,7 @@ PKG_CHECK_MODULES(XML, libxml-2.0)
 PKG_CHECK_MODULES(OMNI, omniORB4)
 PKG_CHECK_MODULES(SIGC, sigc++-2.0)
 PKG_CHECK_MODULES(COMCPP, libccgnu2)
+PKG_CHECK_MODULES(EV, libev)
 
 
 #check sqlite support
@@ -384,6 +385,7 @@ AC_CONFIG_FILES([Makefile
 				 extensions/ModbusSlave/Makefile
 				 extensions/ModbusSlave/libUniSet2MBSlave.pc
 				 extensions/ModbusSlave/tests/Makefile
+				 extensions/ModbusSlave/epoll-test/Makefile
 				 extensions/LogicProcessor/Makefile
 				 extensions/LogicProcessor/libUniSet2LogicProcessor.pc
 				 extensions/LogicProcessor/tests/Makefile

extensions/ModbusSlave/MBSlave.cc

@@ -51,15 +51,13 @@ MBSlave::MBSlave(UniSetTypes::ObjectId objId, UniSetTypes::ObjectId shmId, const
 	auto conf = uniset_conf();
 	mutex_start.setName(myname + "_mutex_start");
 
-	mblog = make_shared<DebugStream>();
-	mblog->setLogName(myname);
-	conf->initLogStream(mblog, prefix + "-log");
-
 	loga = make_shared<LogAgregator>(myname + "-loga");
-	loga->add(mblog);
 	loga->add(ulog());
 	loga->add(dlog());
 
+	mblog = loga->create(myname);
+	conf->initLogStream(mblog, prefix + "-log");
+
 	//    xmlNode* cnode = conf->getNode(myname);
 
 	string conf_name(conf->getArgParam("--" + prefix + "-confnode", myname));
@@ -172,12 +170,18 @@ MBSlave::MBSlave(UniSetTypes::ObjectId objId, UniSetTypes::ObjectId shmId, const
 		rs->setRecvTimeout(2000);
 		rs->setAfterSendPause(aftersend_pause);
 		rs->setReplyTimeout(reply_tout);
-		rs->setLog(mblog);
+		// rs->setLog(mblog);
 
 		mbslot = std::static_pointer_cast<ModbusServerSlot>(rs);
 		thr = make_shared< ThreadCreator<MBSlave> >(this, &MBSlave::execute_rtu);
 		thr->setFinalAction(this, &MBSlave::finalThread);
 		mbinfo << myname << "(init): type=RTU dev=" << dev << " speed=" << speed << endl;
+
+		ostringstream n;
+		n << prefix << "-exchangelog";
+		auto l = loga->create(n.str());
+		rs->setLog(l);
+		conf->initLogStream(l, prefix + "-exchangelog");
 	}
 	else if( stype == "TCP" )
 	{
@@ -201,8 +205,11 @@ MBSlave::MBSlave(UniSetTypes::ObjectId objId, UniSetTypes::ObjectId shmId, const
 		thr->setFinalAction(this, &MBSlave::finalThread);
 		mbinfo << myname << "(init): init TCP connection ok. " << " inet=" << iaddr << " port=" << port << endl;
 
-		if( mblog->is_level9() )
-			mbtcp->setLog(mblog);
+		ostringstream n;
+		n << prefix << "-exchangelog";
+		auto l = loga->create(n.str());
+		mbtcp->setLog(l);
+		conf->initLogStream(l, prefix + "-exchangelog");
 	}
 	else
 		throw UniSetTypes::SystemError(myname + "(MBSlave): Unknown slave type. Use: --" + prefix + "-type [RTU|TCP]");

extensions/ModbusSlave/MBTCPPersistentSlave.cc

@@ -179,8 +179,6 @@ void MBTCPPersistentSlave::execute_tcp()
 		return;
 	}
 
-	auto l = loga->create(myname + "-exchangelog");
-	sslot->setLog(l);
 
 	for( auto && i : cmap )
 		i.second.ptTimeout.reset();
@@ -189,13 +187,14 @@ void MBTCPPersistentSlave::execute_tcp()
 
 	mbinfo << myname << "(execute_tcp): thread running.." << endl;
 
-
-
 	while( !cancelled )
 	{
 		try
 		{
-			sslot->waitQuery( vaddr, waitTimeout );
+#warning MBTCPPersistentSlave: Из этой функции нет возврата..
+			sslot->mainLoop( vaddr );
+
+// ========== В текущей реализации КОД НИЖЕ не будет вызван... по крайней мере пока не завершится процесс ====
 
 			// если слишком быстро обработали запрос
 			// то ничего не делаем..

extensions/ModbusSlave/epoll-test/Makefile.am

+bin_PROGRAMS = mb-epoll-test boost_client
+
+#mb_epoll_test_SOURCES 	= mbslave-epoll.cc
+#mb_epoll_test_LDADD 	= -levent
+
+mb_epoll_test_SOURCES 	= ev++example1.cc
+mb_epoll_test_LDADD 	= -lev
+
+boost_client_SOURCES   = boost_client2.cc
+boost_client_LDADD	= -lboost_system -lboost_thread
+
+# libevent.pc
\ No newline at end of file

extensions/ModbusSlave/epoll-test/ev++example1.cc

+#include <fcntl.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ev++.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <resolv.h>
+#include <errno.h>
+#include <list>
+#include <unistd.h>
+#include <iostream>
+
+using namespace std;
+
+//
+//   Buffer class - allow for output buffering such that it can be written out
+//                                 into async pieces
+//
+struct Buffer {
+        char       *data;
+        ssize_t len;
+        ssize_t pos;
+
+        Buffer(const char *bytes, ssize_t nbytes) {
+            pos = 0;
+            len = nbytes;
+            data = new char[nbytes];
+            memcpy(data, bytes, nbytes);
+        }
+
+        virtual ~Buffer() {
+            delete [] data;
+        }
+
+        char *dpos() {
+            return data + pos;
+        }
+
+        ssize_t nbytes() {
+            return len - pos;
+        }
+};
+
+//
+//   A single instance of a non-blocking Echo handler
+//
+class EchoInstance {
+    private:
+        ev::io           io;
+        static int total_clients;
+        int              sfd;
+        //ev::idle io_idle;
+
+        // Buffers that are pending write
+        std::list<Buffer*>     write_queue;
+
+        // Generic callback
+        void idle_callback(ev::idle &watcher, int revents) {
+
+             cerr << "idle..." << endl;
+/*
+             if (!write_queue.empty())
+                 write_data(sfd);
+             else
+             {
+                 io_idle.stop();
+              }
+*/
+            // io.set(ev::READ|ev::WRITE);
+            // io_idle.stop();
+        }
+
+        // Generic callback
+        void callback(ev::io &watcher, int revents) {
+
+            cerr << "call..." << endl;
+
+            if (EV_ERROR & revents) {
+                perror("got invalid event");
+                return;
+            }
+
+            if (revents & EV_READ)
+                read_cb(watcher);
+
+#if 0
+//            if (revents & EV_WRITE)
+//                write_cb(watcher);
+//            if( !write_queue.empty() )
+//                write_cb(watcher);
+
+//            io.set(ev::READ);
+#else
+            if (revents & EV_WRITE)
+                write_cb(watcher);
+            if (write_queue.empty()) {
+                io.set(ev::READ);
+            } else {
+                io.set(ev::READ|ev::WRITE);
+            }
+#endif
+            cerr << "events: " << revents << " active: " <<  io.is_active()
+                 << " is_pending: " << io.is_pending()
+                 << " total: " << total_clients
+                 <<  endl;
+
+       }
+
+        // Socket is writable
+        void write_cb(ev::io &watcher) {
+            write_data(watcher.fd);
+        }
+
+        void write_data(int wfd) {
+
+            if (write_queue.empty()) {
+                //io.set(ev::READ);
+                return;
+            }
+
+            Buffer* buffer = write_queue.front();
+
+            ssize_t written = write(wfd, buffer->dpos(), buffer->nbytes());
+            if (written < 0) {
+                perror("write error");
+                return;
+            }
+
+            buffer->pos += written;
+            if (buffer->nbytes() == 0) {
+                write_queue.pop_front();
+                delete buffer;
+            }
+
+            if (write_queue.empty()) {
+                //io.set(ev::READ);
+            }
+
+            cout << "write: " << written << endl;
+        }
+
+        // Receive message from client socket
+        void read_cb(ev::io &watcher) {
+            char       buffer[1024];
+
+            ssize_t nread = recv(watcher.fd, buffer, sizeof(buffer), 0);
+            //ssize_t nread = read(watcher.fd, buffer, sizeof(buffer));
+
+            cout << "read: " << nread << endl;
+
+            if (nread < 0) {
+                perror("read error");
+                return;
+            }
+
+            if (nread == 0) {
+                // Gack - we're deleting ourself inside of ourself!
+                delete this; // (pv): ??!!!
+            } else {
+                // Send message bach to the client
+                write_queue.push_back(new Buffer(buffer, nread));
+                //io_idle.start();
+            }
+        }
+
+        // effictivly a close and a destroy
+        virtual ~EchoInstance() {
+            // Stop and free watcher if client socket is closing
+            io.stop();
+            //io_idle.stop();
+
+            close(sfd);
+
+            printf("%d client(s) disconnected.\n", --total_clients);
+        }
+
+    public:
+        EchoInstance(int s) : sfd(s) {
+            fcntl(s, F_SETFL, fcntl(s, F_GETFL, 0) | O_NONBLOCK);
+
+            printf("Got connection\n");
+            total_clients++;
+
+            io.set<EchoInstance, &EchoInstance::callback>(this);
+
+            io.start(s, ev::READ);
+
+            //io_idle.set<EchoInstance, &EchoInstance::idle_callback>(this);
+            //io_idle.start();
+        }
+};
+
+class EchoServer {
+    private:
+        ev::io           io;
+        ev::sig         sio;
+        int                 s;
+
+    public:
+
+        void io_accept(ev::io &watcher, int revents) {
+            if (EV_ERROR & revents) {
+                perror("got invalid event");
+                return;
+            }
+
+            struct sockaddr_in client_addr;
+            socklen_t client_len = sizeof(client_addr);
+
+            int client_sd = accept(watcher.fd, (struct sockaddr *)&client_addr, &client_len);
+
+            if (client_sd < 0) {
+                perror("accept error");
+                return;
+            }
+
+            EchoInstance *client = new EchoInstance(client_sd);
+        }
+
+        static void signal_cb(ev::sig &signal, int revents) {
+            signal.loop.break_loop();
+        }
+
+        EchoServer(int port) {
+            printf("Listening on port %d\n", port);
+
+            struct sockaddr_in addr;
+
+            s = socket(PF_INET, SOCK_STREAM, 0);
+
+            addr.sin_family = AF_INET;
+            addr.sin_port     = htons(port);
+            addr.sin_addr.s_addr = INADDR_ANY;
+
+            if (bind(s, (struct sockaddr *)&addr, sizeof(addr)) != 0) {
+                perror("bind");
+            }
+
+            fcntl(s, F_SETFL, fcntl(s, F_GETFL, 0) | O_NONBLOCK);
+
+            int on = 1;
+            if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)))
+               perror("Could not set socket %d option for reusability: \n");
+
+            listen(s, 5);
+
+            io.set<EchoServer, &EchoServer::io_accept>(this);
+            io.start(s, ev::READ);
+
+            sio.set<&EchoServer::signal_cb>();
+            sio.start(SIGINT);
+        }
+
+        virtual ~EchoServer() {
+            shutdown(s, SHUT_RDWR);
+            close(s);
+        }
+};
+
+int EchoInstance::total_clients = 0;
+
+int main(int argc, char **argv)
+{
+    int port = 8192;
+
+    if (argc > 1)
+        port = atoi(argv[1]);
+
+    ev::default_loop loop;
+    EchoServer echo(port);
+
+    loop.run(0 /* ev::EPOLL */);
+
+    return 0;
+}

extensions/ModbusSlave/epoll-test/mbslave-epoll.cc

+#include <event.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+
+#include <iostream>
+
+using namespace std;
+
+// Read/write buffer max length
+static const size_t MAX_BUF = 512;
+
+typedef struct {
+    struct event ev;
+    char         buf[MAX_BUF];
+    size_t       offset;
+    size_t       size;
+} ConnectionData;
+
+void on_connect(int fd, short event, void *arg);
+void client_read(int fd, short event, void *arg);
+void client_write(int fd, short event, void *arg);
+
+int main(int argc, char **argv)
+{
+    // Check arguments
+    if (argc < 3) {
+        std::cout << "Run with options: <ip address> <port>" << std::endl;
+        return 1;
+    }
+    // Create server socket
+    int server_sock = socket(AF_INET, SOCK_STREAM, 0);
+    if (server_sock == -1) {
+        std::cerr << "Failed to create socket" << std::endl;
+        return 1;
+    }
+
+    sockaddr_in sa;
+    int         on      = 1;
+    char      * ip_addr = argv[1];
+    short       port    = atoi(argv[2]);
+
+    sa.sin_family       = AF_INET;
+    sa.sin_port         = htons(port);
+    sa.sin_addr.s_addr  = inet_addr(ip_addr);
+
+    // Set option SO_REUSEADDR to reuse same host:port in a short time
+    if (setsockopt(server_sock, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) == -1) {
+        std::cerr << "Failed to set option SO_REUSEADDR" << std::endl;
+        return 1;
+    }
+
+    // Bind server socket to ip:port
+    if (bind(server_sock, reinterpret_cast<const sockaddr*>(&sa), sizeof(sa)) == -1) {
+        std::cerr << "Failed to bind server socket" << std::endl;
+        return 1;
+    }
+
+    // Make server to listen
+    if (listen(server_sock, 10) == -1) {
+        std::cerr << "Failed to make server listen" << std::endl;
+        return 1;
+    }
+
+    // Init events
+    struct event evserver_sock;
+    // Initialize
+    event_init();
+    // Set connection callback (on_connect()) to read event on server socket
+    event_set(&evserver_sock, server_sock, EV_READ|EV_PERSIST, on_connect, &evserver_sock);
+    // Add server event without timeout
+    event_add(&evserver_sock, NULL);
+
+    // Dispatch events
+    event_dispatch();
+
+    return 0;
+}
+
+// Handle new connection {{{
+void on_connect(int fd, short event, void *arg)
+{
+    sockaddr_in client_addr;
+    socklen_t   len = 0;
+
+    // Accept incoming connection
+    int sock = accept(fd, reinterpret_cast<sockaddr*>(&client_addr), &len);
+    if (sock < 1) {
+        return;
+    }
+
+	cerr << "*** (ON CONNECT): ..." << endl;
+
+
+    // Set read callback to client socket
+    ConnectionData * data = new ConnectionData;
+    event_set(&data->ev, sock, EV_READ, client_read, data);
+    // Reschedule server event
+	event_add(reinterpret_cast<struct event*>(arg), NULL);
+    // Schedule client event
+    event_add(&data->ev, NULL);
+}
+//}}}
+
+// Handle client request {{{
+void client_read(int fd, short event, void *arg)
+{
+	cerr << "*** (READ): RESCHEDULE..." << endl;
+
+    ConnectionData * data = reinterpret_cast<ConnectionData*>(arg);
+    if (!data) {
+        close(fd);
+        return;
+    }
+    int len = read(fd, data->buf, MAX_BUF - 1);
+    if (len < 1) {
+        close(fd);
+        delete data;
+        return;
+    }
+    data->buf[len] = 0;
+    data->size     = len;
+    data->offset   = 0;
+    // Set write callback to client socket
+    event_set(&data->ev, fd, EV_WRITE, client_write, data);
+    // Schedule client event
+    event_add(&data->ev, NULL);
+}
+//}}}
+
+// Handle client responce {{{
+void client_write(int fd, short event, void *arg)
+{
+    ConnectionData * data = reinterpret_cast<ConnectionData*>(arg);
+    if (!data) {
+        close(fd);
+        return;
+    }
+    // Send data to client
+    int len = write(fd, data->buf + data->offset, data->size - data->offset);
+    if (len < data->size - data->offset) {
+        // Failed to send rest data, need to reschedule
+        data->offset += len;
+        event_set(&data->ev, fd, EV_WRITE, client_write, data);
+        // Schedule client event
+        event_add(&data->ev, NULL);
+        return;
+    }
+//	close(fd);
+//	delete data;
+
+	cerr << "*** (WRITE): RESCHEDULE..." << endl;
+
+    event_set(&data->ev, fd, EV_READ, client_read, data);
+    event_add(&data->ev, NULL);
+
+}
+//}}}

extensions/ModbusSlave/epoll-test/mbslave-epoll2.cc

+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <sys/epoll.h>
+
+
+#define EPOLL_ARRAY_SIZE   64
+
+
+void sprint_buffer(const char *buffer, int size)
+{
+   int i;
+   for (i = 0; i < size; i++)
+   {
+      if (isprint(buffer[i]))
+         printf("%c", buffer[i]);
+      else
+         printf("\\0x%02X", buffer[i]);
+   }
+}
+
+int main(int argc, char *argv[])
+{
+   int sd, efd, clientsd, fd;
+   struct sockaddr_in bindaddr, peeraddr;
+   socklen_t salen = sizeof(peeraddr);
+   int pollsize = 1;
+   struct epoll_event ev;
+   struct epoll_event epoll_events[EPOLL_ARRAY_SIZE];
+   uint32_t events;
+   unsigned short port = 20000;
+   int i, rval, on = 1;
+   ssize_t rc;
+   char buffer[1024];
+
+
+   efd = epoll_create(pollsize);
+
+   if (efd < 0)
+   {
+      printf("Could not create the epoll fd: %m");
+      return 1;
+   }
+
+   sd = socket(AF_INET, SOCK_STREAM, 0);
+   if (sd < 0)
+   {
+      printf("Could not create new socket: %m\n");
+      return 2;
+   }
+
+   printf("New socket created with sd %d\n", sd);
+
+   if (fcntl(sd, F_SETFL, O_NONBLOCK))
+   {
+      printf("Could not make the socket non-blocking: %m\n");
+      close(sd);
+      return 3;
+   }
+
+   if (setsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)))
+   {
+      printf("Could not set socket %d option for reusability: %m\n", sd);
+      close(sd);
+      return 4;
+   }
+
+   bindaddr.sin_addr.s_addr = htonl(INADDR_ANY);
+   bindaddr.sin_family= AF_INET;
+   bindaddr.sin_port = htons(port);
+
+   if (bind(sd, (struct sockaddr *) &bindaddr, sizeof(struct sockaddr_in)) < 0)
+   {
+      printf("Could not bind socket %d to address 'INADDR_ANY' and port %u: %m", sd, port);
+      close(sd);
+      return 5;
+   }
+   else
+   {
+      printf("Bound socket %d to address 'INADDR_ANY' and port %u\n", sd, port);
+   }
+
+   if (listen(sd, SOMAXCONN))
+   {
+      printf("Could not start listening on server socket %d: %m\n", sd);
+      goto cleanup;
+   }
+   else
+   {
+      printf("Server socket %d started listening to address 'INADDR_ANY' and port %u\n", sd, port);
+   }
+
+   ev.events = EPOLLIN;
+   ev.data.u64 = 0LL;
+   ev.data.fd = sd;
+
+   if (epoll_ctl(efd, EPOLL_CTL_ADD, sd, &ev) < 0)
+   {
+      printf("Couldn't add server socket %d to epoll set: %m\n", sd);
+      goto cleanup;
+   }
+
+   for (;;)
+   {
+      printf("Starting epoll_wait on %d fds\n", pollsize);
+
+      while ((rval = epoll_wait(efd, epoll_events, EPOLL_ARRAY_SIZE, -1)) < 0)
+      {
+         if ((rval < 0) && (errno != EINTR))
+         {
+            printf("EPoll on %d fds failed: %m\n", pollsize);
+            goto cleanup;
+         }
+      }
+
+      for (i = 0; i < rval; i++)
+      {
+         events = epoll_events[i].events;
+         fd = epoll_events[i].data.fd;
+
+         if (events & EPOLLERR)
+         {
+            if (fd == sd)
+            {
+               printf("EPoll on %d fds failed: %m\n", pollsize);
+               goto cleanup;
+            } else
+            {
+               printf("Closing socket with sd %d\n", fd);
+               shutdown(fd, SHUT_RDWR);
+               close(fd);
+               continue;
+            }
+         }
+
+         if (events & EPOLLHUP)
+         {
+            if (fd == sd)
+            {
+               printf("EPoll on %d fds failed: %m\n", pollsize);
+               goto cleanup;
+            } else
+            {
+               printf("Closing socket with sd %d\n", fd);
+               shutdown(fd, SHUT_RDWR);
+               close(fd);
+               continue;
+            }
+         }
+
+         if (events & EPOLLRDHUP)
+         {
+            if (fd == sd)
+            {
+               printf("EPoll on %d fds failed: %m\n", pollsize);
+               goto cleanup;
+            } else
+            {
+               printf("Closing socket with sd %d\n", fd);
+               shutdown(fd, SHUT_RDWR);
+               close(fd);
+               continue;
+            }
+         }
+
+         if (events & EPOLLOUT)
+         {
+            if (fd != sd)
+            {
+               rc = snprintf(buffer, sizeof(buffer), "Hello socket %d from server socket %d!\n", fd, sd);
+               while ((rc = send(fd, buffer, rc, 0)) < 0)
+               {
+                  if ((fd < 0) && (errno != EINTR))
+                  {
+                     printf("Send to socket %d failed: %m\n", fd);
+                     pollsize--;
+                     shutdown(fd, SHUT_RDWR);
+                     close(fd);
+                     continue;
+                  }
+               }
+
+               if (rc == 0)
+               {
+                  printf("Closing socket with sd %d\n", fd);
+                  pollsize--;
+                  shutdown(fd, SHUT_RDWR);
+                  close(fd);
+                  continue;
+               } else if (rc > 0)
+               {
+                  printf("Sent '");
+                  sprint_buffer(buffer, rc);
+                  printf("' to socket with sd %d\n", fd);
+
+                  ev.events = EPOLLIN;
+                  ev.data.u64 = 0LL;
+                  ev.data.fd = fd;
+
+                  if (epoll_ctl(efd, EPOLL_CTL_MOD, fd, &ev) < 0)
+                  {
+                     printf("Couldn't modify client socket %d in epoll set: %m\n", fd);
+                     goto cleanup;
+                  }
+               }
+            }
+         }
+
+         if (events & EPOLLIN)
+         {
+            if (fd == sd)
+            {
+               while ((clientsd = accept(sd, (struct sockaddr *) &peeraddr, &salen)) < 0)
+               {
+                  if ((clientsd < 0) && (errno != EINTR))
+                  {
+                     printf("Accept on socket %d failed: %m\n", sd);
+                     goto cleanup;
+                  }
+               }
+
+               if (inet_ntop(AF_INET, &peeraddr.sin_addr.s_addr, buffer, sizeof(buffer)) != NULL)
+               {
+                  printf("Accepted connection from %s:%u, assigned new sd %d\n", buffer, ntohs(peeraddr.sin_port), clientsd);
+               } else
+               {
+                  printf("Failed to convert address from binary to text form: %m\n");
+               }
+
+               ev.events = EPOLLIN;
+               ev.data.u64 = 0LL;
+               ev.data.fd = clientsd;
+
+               if (epoll_ctl(efd, EPOLL_CTL_ADD, clientsd, &ev) < 0)
+               {
+                  printf("Couldn't add client socket %d to epoll set: %m\n", clientsd);
+                  goto cleanup;
+               }
+
+               pollsize++;
+            } else
+            {
+               while ((rc = recv(fd, buffer, sizeof(buffer), 0)) < 0)
+               {
+                  if ((fd < 0) && (errno != EINTR))
+                  {
+                     printf("Receive from socket %d failed: %m\n", fd);
+                     pollsize--;
+                     shutdown(fd, SHUT_RDWR);
+                     close(fd);
+                     continue;
+                  }
+               }
+
+               if (rc == 0)
+               {
+                  printf("Closing socket with sd %d\n", fd);
+                  pollsize--;
+                  shutdown(fd, SHUT_RDWR);
+                  close(fd);
+                  continue;
+               } else if (rc > 0)
+               {
+                  printf("Received '");
+                  sprint_buffer(buffer, rc);
+                  printf("' from socket with sd %d\n", fd);
+
+                  ev.events = EPOLLIN | EPOLLOUT;
+                  ev.data.u64 = 0LL;
+                  ev.data.fd = fd;
+
+                  if (epoll_ctl(efd, EPOLL_CTL_MOD, fd, &ev) < 0)
+                  {
+                     printf("Couldn't modify client socket %d in epoll set: %m\n", fd);
+                     goto cleanup;
+                  }
+               }
+            }
+         }
+      }
+   }
+
+cleanup:
+   shutdown(sd, SHUT_RDWR);
+   close(sd);
+
+   return 0;
+}
\ No newline at end of file

extensions/ModbusSlave/start_tcp_multi_fg.sh

 #!/bin/sh
 
-uniset2-start.sh -f ./uniset2-mbtcp-persistentslave --confile test.xml --dlog-add-levels level3,level4 \
+uniset2-start.sh -f ./uniset2-mbtcp-persistentslave --confile test.xml --dlog-add-levels any --mbs-log-add-levels any --mbs-exchangelog-add-levels any \
 	--smemory-id SharedMemory \
 	--mbs-name MBMultiSlave1 --mbs-type TCP --mbs-inet-addr 127.0.0.1 --mbs-inet-port 2048 --mbs-reg-from-id 1 --mbs-my-addr 0x01 \
 	$*

include/UTCPStream.h

@@ -41,6 +41,25 @@ class UTCPStream:
 		bool isSetLinger();
 		void forceDisconnect(); // disconnect() без ожидания (с отключением SO_LINGER)
 
+		/*!
+		 * Enable/disable delaying packets (Nagle algorithm)
+		 *
+		 * @return true on success.
+		 * @param enable disable Nagle algorithm when set to true.
+		 */
+		bool setNoDelay(bool enable);
+
+		// --------------------------------------------------------------------
+		// Пришлось вынести эти функции read/write[Data] в public
+		// т.к. они сразу "посылают" данные в канал, в отличие от operator<<
+		// который у TCPStream (или std::iostream?) буферизует их и из-за этого
+		// не позволяет работать с отправкой коротких сообщений
+		// --------------------------------------------------------------------
+		ssize_t writeData( const void* buf, size_t len, timeout_t t=0 );
+		ssize_t readData( void * buf,size_t len,char separator=0,timeout_t t=0 );
+
+		int getSocket();
+
 	protected:
 
 	private:

include/modbus/ModbusRTUSlave.h

@@ -44,7 +44,7 @@ class ModbusRTUSlave:
 	protected:
 
 		// realisation (see ModbusServer.h)
-		virtual int getNextData( unsigned char* buf, int len ) override;
+		virtual size_t getNextData( unsigned char* buf, int len ) override;
 		virtual void setChannelTimeout( timeout_t msec ) override;
 		virtual ModbusRTU::mbErrCode sendData( unsigned char* buf, int len ) override;
 

include/modbus/ModbusServer.h

@@ -20,7 +20,7 @@ class ModbusServer
 
 		void initLog( UniSetTypes::Configuration* conf, const std::string& name, const std::string& logfile = "" );
 		void setLog( std::shared_ptr<DebugStream> dlog );
-
+		inline std::shared_ptr<DebugStream> log(){ return dlog; }
 
 		std::unordered_set<ModbusRTU::ModbusAddr> addr2vaddr( ModbusRTU::ModbusAddr& mbaddr );
 
@@ -229,13 +229,13 @@ class ModbusServer
 		virtual ModbusRTU::mbErrCode fileTransfer( ModbusRTU::FileTransferMessage& query,
 				ModbusRTU::FileTransferRetMessage& reply ) = 0;
 
-		/*! get next data block from channel ot recv buffer
+		/*! get next data block from channel or recv buffer
 		    \param begin - get from position
 		    \param buf  - buffer for data
 		    \param len     - size of buf
 		    \return real data lenght ( must be <= len )
 		*/
-		virtual int getNextData( unsigned char* buf, int len ) = 0;
+		virtual size_t getNextData( unsigned char* buf, int len ) = 0;
 
 		virtual ModbusRTU::mbErrCode sendData( unsigned char* buf, int len ) = 0;
 

include/modbus/ModbusTCPCore.h

@@ -5,13 +5,21 @@
 #include <queue>
 #include <cc++/socket.h>
 #include "ModbusRTUErrors.h"
+#include "UTCPStream.h"
 // -------------------------------------------------------------------------
 /*!    ModbusTCP core functions */
 namespace ModbusTCPCore
 {
-	size_t readNextData( ost::TCPStream* tcp, std::queue<unsigned char>& qrecv, int max = 100 );
-	size_t getNextData( ost::TCPStream* tcp, std::queue<unsigned char>& qrecv, unsigned char* buf, size_t len );
-	ModbusRTU::mbErrCode sendData( ost::TCPStream* tcp, unsigned char* buf, size_t len );
+	// t - msec (сколько ждать)
+
+	size_t readNextData( UTCPStream* tcp, std::queue<unsigned char>& qrecv, size_t max = 100, timeout_t t=10 );
+	size_t getNextData( UTCPStream* tcp, std::queue<unsigned char>& qrecv, unsigned char* buf, size_t len, timeout_t t=10 );
+	ModbusRTU::mbErrCode sendData(UTCPStream* tcp, unsigned char* buf, size_t len, timeout_t t=10 );
+
+	// работа напрямую с сокетом
+	size_t readDataFD(int fd, std::queue<unsigned char>& qrecv, size_t max = 100, size_t attempts=1 );
+	size_t getDataFD( int fd, std::queue<unsigned char>& qrecv, unsigned char* buf, size_t len, size_t attempts=1 );
+	ModbusRTU::mbErrCode sendDataFD( int fd, unsigned char* buf, size_t len );
 }
 // -------------------------------------------------------------------------
 #endif // ModbusTCPCore_H_

include/modbus/ModbusTCPServer.h

@@ -5,6 +5,7 @@
 #include <string>
 #include <queue>
 #include <cc++/socket.h>
+#include <ev++.h>
 #include "Mutex.h"
 #include "Debug.h"
 #include "Configuration.h"
@@ -12,12 +13,11 @@
 #include "ModbusTypes.h"
 #include "ModbusServer.h"
 #include "ModbusTCPSession.h"
-
+#include "UTCPStream.h"
 // -------------------------------------------------------------------------
 /*! ModbusTCP server */
 class ModbusTCPServer:
-	public ModbusServer,
-	public ost::TCPSocket
+	public ModbusServer
 {
 	public:
 		ModbusTCPServer( ost::InetAddress& ia, int port = 502 );
@@ -26,11 +26,8 @@ class ModbusTCPServer:
 		/*! Однопоточная обработка (каждый запрос последовательно), с разрывом соединения в конце */
 		virtual ModbusRTU::mbErrCode receive( const std::unordered_set<ModbusRTU::ModbusAddr>& vmbaddr, timeout_t msecTimeout ) override;
 
-		/*! Многопоточная обработка (создаётся по потоку для каждого "клиента")
-		 \return TRUE - если запрос пришёл
-		 \return FALSE - если timeout
-		 */
-		virtual bool waitQuery( const std::unordered_set<ModbusRTU::ModbusAddr>& vmbaddr, timeout_t msec = UniSetTimer::WaitUpTime );
+		/*! Поддержка большого количества соединений (постоянных) */
+		virtual void mainLoop( const std::unordered_set<ModbusRTU::ModbusAddr>& vmbaddr );
 
 		void setMaxSessions( unsigned int num );
 		inline unsigned int getMaxSessions()
@@ -89,19 +86,19 @@ class ModbusTCPServer:
 
 	protected:
 
+		virtual void ioAccept(ev::io &watcher, int revents);
 		virtual ModbusRTU::mbErrCode pre_send_request( ModbusRTU::ModbusMessage& request ) override;
 		virtual ModbusRTU::mbErrCode post_send_request( ModbusRTU::ModbusMessage& request ) override;
 
 		// realisation (see ModbusServer.h)
-		virtual int getNextData( unsigned char* buf, int len ) override;
+		virtual size_t getNextData( unsigned char* buf, int len ) override;
 		virtual void setChannelTimeout( timeout_t msec ) override;
 		virtual ModbusRTU::mbErrCode sendData( unsigned char* buf, int len ) override;
 
-		virtual ModbusRTU::mbErrCode tcp_processing( ost::TCPStream& tcp, ModbusTCP::MBAPHeader& mhead );
+		virtual ModbusRTU::mbErrCode tcp_processing( UTCPStream& tcp, ModbusTCP::MBAPHeader& mhead );
 		void sessionFinished( ModbusTCPSession* s );
 
 		ost::tpport_t port = { 0 };
-		ost::TCPStream tcp;
 		ost::InetAddress iaddr;
 		std::queue<unsigned char> qrecv;
 		ModbusTCP::MBAPHeader curQueryHeader;
@@ -117,6 +114,12 @@ class ModbusTCPServer:
 
 		timeout_t sessTimeout = { 10000 }; // msec
 
+		ev::default_loop* evloop = { 0 };
+		ev::io io;
+		int sock = { -1 };
+
+		const std::unordered_set<ModbusRTU::ModbusAddr>* vmbaddr;
+
 	private:
 
 		std::atomic_bool cancelled;

include/modbus/ModbusTCPSession.h

@@ -5,19 +5,33 @@
 #include <string>
 #include <queue>
 #include <unordered_map>
-#include <cc++/socket.h>
+#include <ev++.h>
 #include "ModbusServerSlot.h"
 #include "ModbusServer.h"
 #include "PassiveTimer.h"
 // -------------------------------------------------------------------------
+/*!
+ * \brief The ModbusTCPSession class
+ * Класс рассчитан на совместную работу с ModbusTCPServer, т.к. построен на основе libev,
+ * и главный цикл (default_loop) находиться там.
+ *
+ * Текущая реализация не доведена до совершенства использования "событий".
+ * И рассчитывает, что данные от клиента приходят все сразу, а так как сокеты не блокирующие,
+ * то попыток чтения делается несколько с небольшой паузой, что нехорошо, т.к. отнимает время у
+ * других "клиентов", ведь сервер по сути однопоточный (!)
+ * Альтернативной реализацией могло быть быть.. чтение по событиям и складывание в отдельную очередь,
+ * а обработку делать по мере достаточного накопления данных во входной очереди, но это требует асинхронный
+ * парсинг данных протокола modbus (т.е. мы анализируем очередной байт и решаем сколько нам нужно ещё
+ * "подождать" данных.. чтобы пойти на следующий шаг), это в результате будет слишком сложная реализация.
+ * В конце-концов пока нет рассчёта на >1000 подключений (хотя libev позволяет держать >10k).
+ */
 class ModbusTCPSession:
 	public ModbusServerSlot,
-	public ModbusServer,
-	public ost::TCPSession
+	public ModbusServer
 {
 	public:
 
-		ModbusTCPSession( ost::TCPSocket& server, const std::unordered_set<ModbusRTU::ModbusAddr>& vmbaddr, timeout_t timeout );
+		ModbusTCPSession( int sock, const std::unordered_set<ModbusRTU::ModbusAddr>& vmbaddr, timeout_t timeout );
 		virtual ~ModbusTCPSession();
 
 		void cleanInputStream();
@@ -41,20 +55,56 @@ class ModbusTCPSession:
 			return caddr;
 		}
 
-		void setKeepAliveParams( timeout_t timeout_sec = 3, int conn_keepcnt = 2, int keepintvl = 2 );
+		void run();
 
 	protected:
-		virtual void run();
+
+		// -------------------------------------------
+		// author:
+		//   Buffer class - allow for output buffering such that it can be written out into async pieces
+		struct Buffer
+		{
+			unsigned char *data;
+			ssize_t len;
+			ssize_t pos;
+
+			Buffer( const unsigned char *bytes, ssize_t nbytes )
+			{
+				pos = 0;
+				len = nbytes;
+				data = new unsigned char[nbytes];
+				memcpy(data, bytes, nbytes);
+			}
+
+			virtual ~Buffer()
+			{
+				delete [] data;
+			}
+
+			unsigned char *dpos()
+			{
+				return data + pos;
+			}
+
+			ssize_t nbytes()
+			{
+				return len - pos;
+			}
+		};
+
+		void callback( ev::io &watcher, int revents );
+		void idleCallback( ev::idle &watcher, int revents );
+		virtual void readEvent( ev::io &watcher );
+		virtual void writeEvent( ev::io &watcher );
 		virtual void final();
 
-		virtual int getNextData( unsigned char* buf, int len );
+		virtual size_t getNextData( unsigned char* buf, int len ) override;
 		virtual void setChannelTimeout( timeout_t msec );
-		virtual ModbusRTU::mbErrCode sendData( unsigned char* buf, int len );
-		virtual ModbusRTU::mbErrCode tcp_processing( ost::TCPStream& tcp, ModbusTCP::MBAPHeader& mhead );
+		virtual ModbusRTU::mbErrCode sendData( unsigned char* buf, int len ) override;
+		virtual ModbusRTU::mbErrCode tcp_processing(ModbusTCP::MBAPHeader& mhead );
 		virtual ModbusRTU::mbErrCode pre_send_request( ModbusRTU::ModbusMessage& request );
 		virtual ModbusRTU::mbErrCode post_send_request( ModbusRTU::ModbusMessage& request );
 
-
 		virtual ModbusRTU::mbErrCode readCoilStatus( ModbusRTU::ReadCoilMessage& query,
 				ModbusRTU::ReadCoilRetMessage& reply );
 
@@ -105,6 +155,11 @@ class ModbusTCPSession:
 		timeout_t timeout = { 0 };
 		ModbusRTU::ModbusMessage buf;
 
+		ev::io  io;
+		int    sfd;
+		std::queue<Buffer*> qsend;
+		ev::idle  idle;
+
 		bool ignoreAddr = { false };
 		std::string peername = { "" };
 

src/Communications/Modbus/Makefile.am

@@ -7,8 +7,8 @@ libModbus_la_SOURCES	= ModbusTypes.cc ModbusHelpers.cc ModbusTCPSession.cc \
 	ModbusRTUSlave.cc ModbusRTUSlaveSlot.cc ModbusRTUMaster.cc \
 	ModbusTCPCore.cc ModbusTCPServer.cc ModbusTCPServerSlot.cc ModbusTCPMaster.cc
 	
-libModbus_la_CXXFLAGS	= -I$(top_builddir)/include/Communications/modbus $(SIGC_CFLAGS) $(COMCPP_CFLAGS)
+libModbus_la_CXXFLAGS	= -I$(top_builddir)/include/Communications/modbus $(SIGC_CFLAGS) $(COMCPP_CFLAGS) $(EV_CFLAGS)
 #libModbus_la_LIBADD		= $(top_builddir)/src/Communications/TCP/libTCP.la $(SIGC_LIBS) $(COMCPP_LIBS)
-libModbus_la_LIBADD		= $(SIGC_LIBS) $(COMCPP_LIBS)
+libModbus_la_LIBADD		= $(SIGC_LIBS) $(COMCPP_LIBS) $(EV_LIBS)
 
 include $(top_builddir)/include.mk

src/Communications/Modbus/ModbusRTUSlave.cc

@@ -147,7 +147,7 @@ void ModbusRTUSlave::setSpeed( const std::string& s )
 		port->setSpeed(s);
 }
 // --------------------------------------------------------------------------------
-int ModbusRTUSlave::getNextData( unsigned char* buf, int len )
+size_t ModbusRTUSlave::getNextData( unsigned char* buf, int len )
 {
 	//    if( !port ) return 0;
 	return port->receiveBlock(buf, len);

src/Communications/Modbus/ModbusServer.cc

@@ -48,6 +48,7 @@ ModbusServer::ModbusServer():
 	    dlog->addLevel(Debug::CRIT);
 	    dlog->addLevel(Debug::INFO);
 	*/
+
 }
 
 // -------------------------------------------------------------------------

src/Communications/Modbus/ModbusTCPCore.cc

@@ -19,31 +19,37 @@
 using namespace std;
 using namespace ModbusRTU;
 // -------------------------------------------------------------------------
-size_t ModbusTCPCore::readNextData( ost::TCPStream* tcp,
-									std::queue<unsigned char>& qrecv, int max )
+size_t ModbusTCPCore::readNextData(UTCPStream* tcp,
+									std::queue<unsigned char>& qrecv, size_t max, timeout_t t )
 {
 	if( !tcp || !tcp->isConnected() )
 		return 0;
 
-	int i = 0;
+	size_t i = 0;
 
+	try
+	{
 		for( ; i < max; i++ )
 		{
-		char c;
-		tcp->read(&c, sizeof(c));
+			unsigned char c;
+			ssize_t l = tcp->readData(&c, sizeof(c),0,t);
 
-		if( tcp->gcount() <= 0 )
+			if( l <= 0 )
 				break;
 
-		qrecv.push( (unsigned char)(c) );
+			qrecv.push(c);
+		}
+	}
+	catch( ost::SockException& e )
+	{
 	}
 
 	return i;
 }
 // ------------------------------------------------------------------------
-size_t ModbusTCPCore::getNextData(ost::TCPStream* tcp,
+size_t ModbusTCPCore::getNextData(UTCPStream* tcp,
 								  std::queue<unsigned char>& qrecv,
-								  unsigned char* buf, size_t len )
+								  unsigned char* buf, size_t len, timeout_t t )
 {
 	if( !tcp || !tcp->isConnected() )
 		return 0;
@@ -53,9 +59,74 @@ size_t ModbusTCPCore::getNextData(ost::TCPStream* tcp,
 		if( len <= 0 )
 			len = 7;
 
-		int ret = ModbusTCPCore::readNextData(tcp, qrecv, len);
+		size_t ret = ModbusTCPCore::readNextData(tcp, qrecv, len, t);
+
+		if( ret == 0 )
+			return 0;
+	}
+
+	size_t i = 0;
+
+	for( ; i < len && !qrecv.empty(); i++ )
+	{
+		buf[i] = qrecv.front();
+		qrecv.pop();
+	}
+
+	return i;
+}
+// -------------------------------------------------------------------------
+size_t ModbusTCPCore::readDataFD( int fd, std::queue<unsigned char>& qrecv, size_t max , size_t attempts )
+{
+	size_t i = 0;
+#if 1
+	for( size_t a=0; a<attempts; a++ )
+	{
+		for( ; i < max; i++ )
+		{
+			// читаем один символ за раз..
+			unsigned char c;
+			ssize_t l = ::read(fd, &c, sizeof(c));
+
+			if( l <= 0 )
+				break;
+
+			qrecv.push(c);
+		}
+	}
+#else
+	char* buf = new char[max];
+	ssize_t l = 0;
+	for( size_t a=0; a<attempts; a++ )
+	{
+		l = ::read(fd, buf, sizeof(buf));
+		if( l > 0 )
+			break;
+	}
+
+	if( l > 0 )
+	{
+		for( int i=0; i<l; i++ )
+			qrecv.push(buf[i]);
+	}
+
+	delete [] buf;
+#endif
+
+	return ( qrecv.size() >= max ? max : qrecv.size() );
+}
+// ------------------------------------------------------------------------
+size_t ModbusTCPCore::getDataFD( int fd, std::queue<unsigned char>& qrecv,
+								  unsigned char* buf, size_t len, size_t attempts )
+{
+	if( qrecv.empty()  || qrecv.size() < len )
+	{
+		if( len == 0 )
+			len = 7;
+
+		size_t ret = ModbusTCPCore::readDataFD(fd, qrecv, len, attempts);
 
-		if( ret <= 0 )
+		if( ret == 0 )
 			return 0;
 	}
 
@@ -70,16 +141,15 @@ size_t ModbusTCPCore::getNextData(ost::TCPStream* tcp,
 	return i;
 }
 // -------------------------------------------------------------------------
-mbErrCode ModbusTCPCore::sendData(ost::TCPStream* tcp, unsigned char* buf, size_t len )
+mbErrCode ModbusTCPCore::sendData( UTCPStream* tcp, unsigned char* buf, size_t len, timeout_t t )
 {
 	if( !tcp || !tcp->isConnected() )
 		return erTimeOut;
 
 	try
 	{
-		for( size_t i = 0; i < len; i++ )
-			(*tcp) << buf[i];
-
+		ssize_t l = tcp->writeData(buf,len,t);
+		if( l == len )
 			return erNoError;
 	}
 	catch( ost::SockException& e )
@@ -94,3 +164,11 @@ mbErrCode ModbusTCPCore::sendData(ost::TCPStream* tcp, unsigned char* buf, size_
 	return erHardwareError;
 }
 // -------------------------------------------------------------------------
+mbErrCode ModbusTCPCore::sendDataFD( int fd, unsigned char* buf, size_t len )
+{
+	ssize_t l = ::write(fd,buf,len);
+	if( l == len )
+		return erNoError;
+	return erHardwareError;
+}
+// -------------------------------------------------------------------------

src/Communications/Modbus/ModbusTCPMaster.cc

@@ -124,13 +124,15 @@ mbErrCode ModbusTCPMaster::query( ModbusAddr addr, ModbusMessage& msg,
 		if( dlog->is_info() )
 		{
 			dlog->info() << iaddr << "(ModbusTCPMaster::query): send tcp header(" << sizeof(mh) << "): ";
-			mbPrintMessage( dlog->info(), (ModbusByte*)(&mh), sizeof(mh));
-			dlog->info() << endl;
+			mbPrintMessage( dlog->info(false), (ModbusByte*)(&mh), sizeof(mh));
+			dlog->info(false) << endl;
 		}
 
 		for( unsigned int i = 0; i < 2; i++ )
 		{
-			(*tcp) << mh;
+			if( tcp->isPending(ost::Socket::pendingOutput, timeout) )
+			{
+				tcp->writeData(&mh,sizeof(mh));
 
 				// send PDU
 				mbErrCode res = send(msg);
@@ -140,6 +142,7 @@ mbErrCode ModbusTCPMaster::query( ModbusAddr addr, ModbusMessage& msg,
 
 				if( tcp->isPending(ost::Socket::pendingOutput, timeout) )
 					break;
+			}
 
 			if( dlog->is_info() )
 				dlog->info() << "(ModbusTCPMaster::query): no write pending.. reconnnect.." << endl;
@@ -187,7 +190,7 @@ mbErrCode ModbusTCPMaster::query( ModbusAddr addr, ModbusMessage& msg,
 			if( dlog->is_info() )
 			{
 				dlog->info() << "(ModbusTCPMaster::query): recv tcp header(" << ret << "): ";
-				mbPrintMessage( dlog->info(), (ModbusByte*)(&rmh), sizeof(rmh));
+				mbPrintMessage( dlog->info(false), (ModbusByte*)(&rmh), sizeof(rmh));
 				dlog->info(false) << endl;
 			}
 
@@ -324,6 +327,7 @@ bool ModbusTCPMaster::checkConnection( const std::string& ip, int port, int time
 		UTCPStream t;
 		t.create(ip, port, true, timeout_msec);
 		t.setKeepAliveParams( (timeout_msec > 1000 ? timeout_msec / 1000 : 1), 1, 1);
+		t.setNoDelay(true);
 		t.disconnect();
 		return true;
 	}
@@ -351,6 +355,7 @@ void ModbusTCPMaster::reconnect()
 		tcp->create(iaddr, port, true, 500);
 		tcp->setTimeout(replyTimeOut_ms);
 		tcp->setKeepAliveParams((replyTimeOut_ms > 1000 ? replyTimeOut_ms / 1000 : 1));
+		tcp->setNoDelay(true);
 	}
 	catch( const std::exception& e )
 	{
@@ -405,6 +410,7 @@ void ModbusTCPMaster::connect( ost::InetAddress addr, int _port )
 		tcp->create(iaddr, port, true, 500);
 		tcp->setTimeout(replyTimeOut_ms);
 		tcp->setKeepAliveParams((replyTimeOut_ms > 1000 ? replyTimeOut_ms / 1000 : 1));
+		tcp->setNoDelay(true);
 	}
 	catch( const std::exception& e )
 	{

src/Communications/Modbus/ModbusTCPServer.cc

@@ -25,7 +25,6 @@ using namespace ModbusRTU;
 using namespace UniSetTypes;
 // -------------------------------------------------------------------------
 ModbusTCPServer::ModbusTCPServer( ost::InetAddress& ia, int _port ):
-	TCPSocket(ia, _port),
 	port(_port),
 	iaddr(ia),
 	ignoreAddr(false),

src/Communications/TCP/UTCPStream.cc

@@ -73,6 +73,26 @@ void UTCPStream::forceDisconnect()
 	Socket::flags.linger = f;
 }
 // -------------------------------------------------------------------------
+bool UTCPStream::setNoDelay(bool enable)
+{
+	return ( TCPStream::setNoDelay(enable) == 0 );
+}
+// -------------------------------------------------------------------------
+ssize_t UTCPStream::writeData(const void* buf, size_t len, timeout_t t)
+{
+	return TCPStream::writeData(buf,len,t);
+}
+// -------------------------------------------------------------------------
+ssize_t UTCPStream::readData(void* buf, size_t len, char separator, timeout_t t)
+{
+	return TCPStream::readData(buf,len,separator,t);
+}
+// -------------------------------------------------------------------------
+int UTCPStream::getSocket()
+{
+	return TCPStream::so;
+}
+// -------------------------------------------------------------------------
 void UTCPStream::create( const std::string& hname, int port, bool throwflag, timeout_t t )
 {
 	family = ost::Socket::IPV4;

uniset2.files

@@ -140,6 +140,7 @@ extensions/ModbusSlave/tests/t.cc
 extensions/ModbusSlave/tests/test_mbslave.cc
 extensions/ModbusSlave/tests/tests_individual_process.cc
 extensions/ModbusSlave/tests/tests_with_sm.cc
+extensions/ModbusSlave/epoll-test/mbslave-epoll.cc
 extensions/ModbusSlave/libUniSet2MBSlave.pc.in
 extensions/ModbusSlave/Makefile.am
 extensions/ModbusSlave/MBSlave.cc