Work on queue..

.vscode/settings.json

@@ -44,6 +44,8 @@
         "stdexcept": "cpp",
         "streambuf": "cpp",
         "cinttypes": "cpp",
-        "typeinfo": "cpp"
+        "typeinfo": "cpp",
+        "thread": "cpp",
+        "chrono": "cpp"
     }
 }

lib/ip.hpp

@@ -4,9 +4,16 @@
 #include <iostream>
 #include <string>
 #include <string.h>
-#include <arpa/inet.h>
+
-#include <netdb.h>
+#if __linux__
-#include <unistd.h>
+    #include <arpa/inet.h>
+    #include <netdb.h>
+    #include <unistd.h>
+#elif _WIN32
+    // #include <sstream>
+    #include <WinSock.h>
+    #include <ws2tcpip.h>
+#endif
 
 using namespace std;
 

lib/tcp_socket.hpp

@@ -3,17 +3,35 @@
 
 #include <iostream>
 #include <string>
+#include <vector>
+#include <deque>
+#include <thread>
+#include <mutex>
 #include <string.h>
-#include <arpa/inet.h>
-#include <netdb.h>
-#include <unistd.h>
 #include <openssl/ssl.h>
 #include <openssl/err.h>
 
+#if __linux__
+    #include <arpa/inet.h>
+    #include <netdb.h>
+    #include <unistd.h>
+#elif _WIN32
+    #include <WinSock.h>
+    #include <ws2tcpip.h>
+    #pragma comment(lib,"ws2_32.lib")
+    #define ushort u_short
+    #define uint u_int
+#endif
+
 #include "ip.hpp"
 
 using namespace std;
 
+class client;
+// class secure;
+// class server;
+
+
 /**
  * Server klasa za TCP/IP soket
  * Instanca se incijalizira kada pokrećemo server
@@ -21,12 +39,22 @@ using namespace std;
 
 class server {
     public:
+    #if __linux__
         int sock;
+    #elif _WIN32
+        WSADATA wsa;
+        SOCKET sock;
+    #endif
     struct sockaddr_in addr;
+    SSL_CTX* securefds = NULL;
+    vector<thread> thr;
 
-    server (const ushort port, const uint limit = 1000);
+    server (const ushort port, const uint queue = 1000, SSL_CTX* _securefds = NULL);
     ~server ();
 
+    void sync(void (*handlecli)(client&), const uint timeout = 100);
+    void async(const uint limit, void (*handlecli)(client&, mutex&), const uint timeout = 100);
+
 };
 
 /**
@@ -51,40 +79,53 @@ class secure {
 
 class client {
     public:
-    int sock;
+    // zajedničke
+    #if __linux__
+        int conn; // mijenja sock
+    #elif _WIN32
+        WSADATA wsa;
+        SOCKET conn; // mijenja sock
+    #endif
     struct sockaddr_in addr;
     SSL* ssl = NULL;
+    // server s klijentima
+    const server* srv;
+    // klijent sa serverom
+    string ipv4;
+    string ipv6;
     
+    // konstruktor za klijente bez servera
     client (const string address, const ushort port, const uint timeout = 100, SSL_CTX* securefds = NULL);
+    // konstruktor za klijente sa serverom
+    client (const server *_srv, const uint timeout = 100, SSL_CTX* securefds = NULL);
     ~client ();
-    bool tell (const string msg);
+    bool push (const string msg);
-    string obey (size_t byte_limit = 1024);
+    string pull (size_t byte_limit = 1024);
 };
 
 
-/**
+class queue { // FIFO
- * Klasa za inicijalizaciju dolaznih veza
- * Definira se na serverskom tipu aplikacija i predstavlja identifikator klijenta
-*/
-
-class comming {
     public:
-    const server *srv;
+    mutex io;
-    struct sockaddr_in addr;
+    uint limit;
-    int conn;
+    string address;
-    string ipv4;
+    ushort port;
-    string ipv6;
+    uint timeout;
-    SSL* ssl = NULL;
+    server *srv = NULL;
+    SSL_CTX* securefds = NULL;
 
-    comming(const server *_srv, const uint timeout = 100, SSL_CTX* securefds = NULL);
+    deque<client*> clients;
-    ~comming();
+    thread controller;
-    bool tell (const string msg);
-    string obey (size_t byte_limit = 1024);
 
+    queue (const uint _limit, const string _address, const ushort _port, const uint _timeout = 100, SSL_CTX* _securefds = NULL);
+    queue (const uint _limit, server *_srv, const uint _timeout = 100, SSL_CTX* _securefds = NULL);
 
-};
+    ~queue();
 
+    void enqueue();
+    client dequeue();
 
+};
 
 
 #endif

src/tcp_socket.cpp

@@ -4,12 +4,19 @@
  * Kontrustruktor varijable tipa server, prima port i limit za ograničenje liste klijenata na čekanju
 */
 
-server::server (const ushort port, const uint limit) {
+server::server (const ushort port, const uint queue, SSL_CTX* _securefds) {
+    securefds = _securefds;         
 
     addr.sin_family = AF_INET;
     addr.sin_addr.s_addr = INADDR_ANY;
     addr.sin_port = htons(port);
 
+    #if _WIN32
+        if (WSAStartup(MAKEWORD(2,2),&wsa) != 0) {
+            throw string("[ERROR] WSA Startup. Detail: " + to_string(WSAGetLastError()));
+        }
+    #endif
+
     sock = socket(AF_INET, SOCK_STREAM, 0); 
     if (sock <= 0) {  
         throw string("[ERROR] Unable to open TCP socket ");
@@ -17,20 +24,65 @@ server::server (const ushort port, const uint limit) {
     }
 
     int opt=1;
+    #if __linux__
         if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &opt, sizeof(opt))) {
             throw string("[ERROR] Unable to set REUSEADDR or REUSEPORT on socket ");
         }
+    #elif _WIN32
+        if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (const char*)&opt, sizeof(opt))) {
+            throw string("[ERROR] Unable to set REUSEADDR or REUSEPORT on socket ");
+        }
+    #endif
+    
 
     if (bind(sock, (struct sockaddr *)&addr, sizeof(struct sockaddr_in)) < 0) {
         throw string("[ERROR] Unable to bind socket ");
     }
 
-    if (listen(sock, limit) < 0) {
+    if (listen(sock, queue) < 0) {
         throw string("[ERROR] It is not possible to set the allowed number of waiting clients ");
     }
 
 }
 
+/**
+ * Metoda za sinkroni rad s klijentima, prima pokazivač na funkciju i timeout;
+ * Funkcija handlecli prima referencu tipa client - važno za definiranje funkcija koje se šalju;
+ * Nije moguće proslijediti druge parametre;
+*/
+
+void server::sync(void (*handlecli)(client&), const uint timeout) {
+    do {
+        client cli(this, timeout, securefds);
+        handlecli(cli);
+    } while (true);
+}
+
+/**
+ * Metoda za asinkdorni rad s klijentima, prima limit, pokazivač na funkciju i timeout;
+ * Funkcija handlecli prima referencu tipa client - važno za definiranje funkcija koje se šalju;
+ * Nije moguće proslijediti druge parametre;
+*/
+
+void server::async(const uint limit, void (*handlecli)(client&, mutex&), const uint timeout) {
+    mutex io;
+    do {
+        for (uint i=0; i<limit; i++) {
+            thr.push_back(thread([&](){
+                client cli(this, timeout, securefds);
+                handlecli(cli, io);
+            }));
+        }
+
+        for (uint i=0; i<limit; i++) {
+            thr[i].join();
+        }
+        thr.clear();
+
+    } while (true);
+}
+
+
 /**
  * Destruktor varijable tipa server
 */
@@ -42,10 +94,21 @@ server::~server () {
         throw string("[ERROR] The socket is already closed "); 
     }
 
-    else if (close(sock) != 0) {
+    else {
+
+        #if __linux__
+            if (close(sock) != 0) {
+                throw string("[ERROR] Unable to close socket ");
+            }
+        #elif _WIN32
+            if (closesocket(sock) != 0) {
                 throw string("[ERROR] Unable to close socket ");
             }
+            WSACleanup();
+        #endif
 
+
+    }
 }
 
 /**
@@ -110,8 +173,14 @@ secure::~secure () {
 
 client::client(const string address, const ushort port, const uint timeout, SSL_CTX* securefds) {
 
-    sock = socket(AF_INET, SOCK_STREAM, 0);
+    #if _WIN32
-	if (sock < 0) {
+        if (WSAStartup(MAKEWORD(2,2),&wsa) != 0) {
+            throw string("[ERROR] Unable to set WinSock " + to_string(WSAGetLastError()));
+        }
+    #endif
+
+    conn = socket(AF_INET, SOCK_STREAM, 0);
+	if (conn < 0) {
         throw string("[ERROR] Unable to open TCP socket ");
 	}
 
@@ -121,24 +190,31 @@ client::client(const string address, const ushort port, const uint timeout, SSL_
 	addr.sin_addr.s_addr = inet_addr(_address.c_str());
 	addr.sin_port = htons(port);
 
-    if (connect(sock, (struct sockaddr*)&addr, sizeof(struct sockaddr_in)) != 0) {
+    if (connect(conn, (struct sockaddr*)&addr, sizeof(struct sockaddr_in)) != 0) {
         throw string("Unable to connect to server ");
     }
 
+    #if __linux__
         struct timeval tv;
         tv.tv_sec = timeout/1000;
         tv.tv_usec = (timeout%1000)*1000;
 
-    if (setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(struct timeval))) {
+        if (setsockopt(conn, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(struct timeval))) {
+            throw string("[ERROR] Unable to set timeout ");
+        }
+    #elif _WIN32
+        DWORD tv = timeout;
+        if (setsockopt(conn, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof(tv))) {
             throw string("[ERROR] Unable to set timeout ");
         }
+    #endif
 
     if (securefds) {
         ssl = SSL_new(securefds);
         if (!ssl) {
             throw string("[ERROR] Creating SSL object ");
         }
-        SSL_set_fd(ssl, sock);
+        SSL_set_fd(ssl, conn);
 
         // Perform the SSL handshake
         if (SSL_connect(ssl) <= 0) {
@@ -150,65 +226,6 @@ client::client(const string address, const ushort port, const uint timeout, SSL_
 
 }
 
-
-/**
- * Destruktor varijable tipa client
-*/
-
-client::~client () {
-
-    if (ssl) {
-        SSL_shutdown(ssl);
-        SSL_free(ssl);
-    }
-
-    if (sock <= 0) {
-        throw string("[ERROR] The socket is already closed "); 
-    }
-
-    else if (close(sock) != 0) {
-        throw string("[ERROR] Unable to close socket ");
-    }
-
-}
-
-/**
- * Metoda klase client za slanje podataka preko soketa
- * Prima string koji će biti poslan
- * Vraća logički statu poređenja psolanih karaktera i karaktera u stringu
-*/
-
-
-bool client::tell (const string msg) {
-    size_t sended = 0;
-    if (ssl) {
-       sended = SSL_write(ssl, msg.c_str(), msg.length());
-    }
-    else {
-        sended = write(sock, msg.c_str(), msg.length());
-    }
-    return sended == msg.length();
-}
-
-/**
- * Metoda klase client za primanje poruke preko soketa
- * Prima dozvoljeni broj karaktera koji će primiti
- * Vraća string primljene poruke
-*/
-
-string client::obey (size_t byte_limit) {
-   char res[byte_limit] = {0};
-
-    if (ssl) {
-        SSL_read(ssl, res, byte_limit);
-    }
-    else {
-        read(sock , res, byte_limit);
-    }
-
-    return string(res);
-}
-
 /**
  * Konstruktor varijable tipa commint
  * Prima pokazivač na inicijaliziranu varijablu tipa, port, 
@@ -217,7 +234,7 @@ string client::obey (size_t byte_limit) {
 */
 
 
-comming::comming(const server *_srv, const uint timeout, SSL_CTX* securefds) {
+client::client(const server *_srv, const uint timeout, SSL_CTX* securefds) {
     srv = _srv;
     socklen_t len = sizeof(struct sockaddr_in);
 
@@ -225,6 +242,7 @@ comming::comming(const server *_srv, const uint timeout, SSL_CTX* securefds) {
         throw string("[ERROR] Unable to accept client connection ");
     }
 
+    #if __linux__
         struct timeval tv;
         tv.tv_sec = timeout/1000;
         tv.tv_usec = (timeout%1000)*1000;
@@ -232,7 +250,13 @@ comming::comming(const server *_srv, const uint timeout, SSL_CTX* securefds) {
         if (setsockopt(conn, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(struct timeval))) {
             throw string("[ERROR] Unable to set timeout ");
         }
+    #elif _WIN32
+        DWORD tv = timeout;
 
+        if (setsockopt(conn, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof(tv))) {
+            throw string("[ERROR] Unable to set timeout ");
+        }
+    #endif
 
     if (securefds) {
         ssl = SSL_new(securefds);
@@ -259,11 +283,12 @@ comming::comming(const server *_srv, const uint timeout, SSL_CTX* securefds) {
 
 }
 
+
 /**
- * Destruktor varijable tipa comming
+ * Destruktor varijable tipa client
 */
 
-comming::~comming() {
+client::~client () {
 
     if (ssl) {
         SSL_shutdown(ssl);
@@ -274,44 +299,222 @@ comming::~comming() {
         throw string("[ERROR] The socket is already closed "); 
     }
 
-    else if (close(conn) != 0) {
+    else {
+        #if __linux__
+            if (close(conn) != 0) {
                 throw string("[ERROR] Unable to close socket ");
             }
+        #elif _WIN32
+            if (closesocket(conn) != 0) {
+                throw string("[ERROR] Unable to close socket ");
+            }
+            //WSACleanup();
+        #endif
+    }
+
 }
 
 /**
- * Metoda klase comming za slanje podataka preko soketa
+ * Metoda klase client za slanje podataka preko soketa
  * Prima string koji će biti poslan
  * Vraća logički statu poređenja psolanih karaktera i karaktera u stringu
 */
 
-bool comming::tell (const string msg) {
+
-    ssize_t sended = 0;
+bool client::push (const string msg) {
+    size_t sended = 0;
     if (ssl) {
        sended = SSL_write(ssl, msg.c_str(), msg.length());
     }
     else {
-        sended = write(conn, msg.c_str(), msg.length());
+        sended = send(conn, msg.c_str(), msg.length(), 0);
     }
     return sended == msg.length();
 }
 
-
 /**
- * Metoda klase comming za primanje poruke preko soketa
+ * Metoda klase client za primanje poruke preko soketa
  * Prima dozvoljeni broj karaktera koji će primiti
  * Vraća string primljene poruke
 */
 
-string comming::obey (size_t byte_limit) {
+string client::pull (size_t byte_limit) {
    char res[byte_limit] = {0};
 
     if (ssl) {
         SSL_read(ssl, res, byte_limit);
     }
     else {
-        read(conn , res, byte_limit);
+        recv(conn , res, byte_limit, 0);
     }
 
     return string(res);
 }
+
+
+
+queue::queue (const uint _limit, const string _address, const ushort _port, const uint _timeout, SSL_CTX* _securefds) {
+
+    if (_limit > 1) {
+        limit = _limit;
+    }
+    else {
+        throw string("[ERROR] Limit out of range ");
+    }
+
+    address = _address;
+    port = _port;
+    timeout = _timeout;
+    securefds = _securefds;
+    
+
+    // for (uint i=0; i<limit; i++) {
+
+    //     if (address.empty() && srv != NULL) {
+    //         clients.push_back(new client(srv, timeout, securefds));
+    //     }
+    //     else {
+    //         clients.push_back(new client(address, port, timeout, securefds));
+    //     }
+    // }
+
+    // controller = thread([&](){
+    //     cout << "Upao u tred "<< endl;
+    //     while(true) {
+    //         // io.lock();
+    //         // uint missing = limit-clients.size();
+    //         // cout << "nedostaje " << missing << endl;
+    //         // if (missing > 0.6*limit) {
+    //             // enqueue();
+    //         if (clients.size() <= 1) {
+    //             if (address.empty() && srv != NULL) {
+    //                 clients.push_back(new client(srv, timeout, securefds));
+    //             }
+    //             else {
+    //                 clients.push_back(new client(address, port, timeout, securefds));
+    //             }
+    //         }
+    //         // }
+    //         // usleep(missing*100000);
+    //         // io.unlock();
+    //         // usleep(1000);
+    //         sleep(1);
+
+    //     }
+    // });
+
+}
+
+
+
+queue::queue (const uint _limit, server *_srv, const uint _timeout, SSL_CTX* _securefds) {
+    if (_limit > 1) {
+        limit = _limit;
+    }
+    else {
+        throw string("[ERROR] Limit out of range ");
+    }
+
+    srv = _srv;
+    timeout = _timeout;
+    securefds = _securefds;
+
+    controller = thread([this](){
+        cout << "Upao u tred "<< endl;
+        while(true) {
+            io.lock();
+            // uint missing = limit-clients.size();
+            // cout << "nedostaje " << missing << endl;
+            // if (missing > 0.6*limit) {
+                // enqueue();
+            if (clients.size()< limit) {
+                if (address.empty() && srv != NULL) {
+                    clients.push_back(new client(srv, timeout, securefds));
+                }
+                else {
+                    clients.push_back(new client(address, port, timeout, securefds));
+                }
+            }
+            // }
+            // usleep(missing*100000);
+            io.unlock();
+            // usleep(1000);
+        }
+    });
+
+}
+
+void queue::enqueue () {
+    vector<thread> worker;
+    lock_guard<mutex> master(io);
+
+    for (uint i=0; i<limit-clients.size(); i++) {
+        cout << "idemo dodati klijente " << endl;
+        worker.push_back(thread([&](){
+            if (address.empty() && srv != NULL) {
+                clients.push_back(new client(srv, timeout, securefds));
+            }
+            else {
+                cout << "dodajem " << i << endl;
+                clients.push_back(new client(address, port, timeout, securefds));
+            }
+        }));
+    }
+
+    for (uint i=0; i<worker.size(); i++) {
+        cout << "čekam da se dodaju " << endl;
+        worker[i].join();
+    }
+    
+    cout << "dodali su se " << endl;
+    worker.clear();
+}
+
+client queue::dequeue() {
+    cout << "uzimam jednog iz stacka " << endl;
+    lock_guard<mutex> master(io);
+    client *cli;
+    while (true) {
+        if (clients.size() >= 1) {
+            cli = clients.front();
+            clients.pop_front();
+            cout << "uzimam jednog iz stacka uzeo sam " << endl;
+            return *cli;
+        }
+        else if (clients.size() == 1) {
+             controller = thread([&](){
+                cout << "Upao u tred "<< endl;
+                while(true) {
+                    // io.lock();
+                    // uint missing = limit-clients.size();
+                    // cout << "nedostaje " << missing << endl;
+                    // if (missing > 0.6*limit) {
+                        // enqueue();
+                    if (clients.size() <= 1) {
+                        if (address.empty() && srv != NULL) {
+                            clients.push_back(new client(srv, timeout, securefds));
+                        }
+                        else {
+                            clients.push_back(new client(address, port, timeout, securefds));
+                        }
+                    }
+                    // }
+                    // usleep(missing*100000);
+                    // io.unlock();
+                    // usleep(1000);
+                    sleep(1);
+
+                }
+            });
+        }
+
+        usleep(1000);
+    }
+}
+
+queue::~queue () {
+    for (uint i=0; i<clients.size(); i++) {
+        clients[i]->~client();
+    }
+    clients.clear();
+}

test/client.cpp

@@ -1,26 +1,93 @@
 #include <iostream>
+#include <string>
+#include <chrono>
 
 #include "../lib/tcp_socket.hpp"
 
 using namespace std;
+using namespace chrono;
 
 int main() {
 
     try {
+        cout << "inicijalizacija reda" << endl;
+        // queue sockets(2, "127.0.0.1", 5000, 500);
 
-        secure crypto;
-        cout << "init cert " << endl;
 
-        client myserver("127.0.0.1", 5000, 5000, crypto.fds);
+        // thread t1([&]() {
-        // client myserver("localhost", 5000);
+        //     cout << "korištenje prvog klijenta" << endl;
-        cout << "init client " << endl;
+        //     int a = 0;
+        //     while(true) {
+        //         try {
+        //             auto start = high_resolution_clock::now();
+        //             client myserver = sockets.dequeue();
+        //             auto stop = high_resolution_clock::now();
+        //             auto duration = duration_cast<microseconds>(stop - start);
+        //             cout << "Time taken by function: " << duration.count() << " microseconds" << endl;
+        //             string sends = "Socket I " + to_string(a++);
+        //             myserver.push(sends);
+        //             cout << myserver.pull() << endl; 
 
+        //         } catch (const string err) {
+        //             cout << err << endl;
+        //         } 
+        //         // usleep(100000);
+        //     }
+        // });
 
-        string sends = "Hello world!";
+        // // usleep(20000);
-        cout << myserver.tell(sends) << " " << sends.length() << endl;
-        cout << "wait client " << endl;
 
-        cout << myserver.obey();
+        // thread t2([&]() {
+        //     cout << "korištenje drugog klijenta" << endl;
+        //     int a = 0;
+        //     while(true) {
+        //         try {
+        //             auto start = high_resolution_clock::now();
+        //             client myserver = sockets.dequeue();
+        //             auto stop = high_resolution_clock::now();
+        //             auto duration = duration_cast<microseconds>(stop - start);
+        //             cout << "Time taken by function: " << duration.count() << " microseconds" << endl;
+        //             string sends = "Socket II " + to_string(a++);
+        //             myserver.push(sends);
+        //             cout << myserver.pull() << endl; 
+
+        //         } catch (const string err) {
+        //             cout << err << endl;
+        //         } 
+        //         // usleep(100000);
+        //     }
+        // });
+
+        // t1.join();
+        // t2.join();
+
+        // int a = 0;
+        // auto start = high_resolution_clock::now();
+        // client myserver ("127.0.0.1", 5000, 500);
+        // // auto stop = high_resolution_clock::now();
+        // // auto duration = duration_cast<microseconds>(stop - start);
+        // // cout << "Time taken by function: " << duration.count() << " microseconds" << endl;
+        // string sends = "Socket II " + to_string(a++);
+        // myserver.push(sends);
+        // cout << myserver.pull() << endl; 
+        // auto stop = high_resolution_clock::now();
+        // auto duration = duration_cast<microseconds>(stop - start);
+        // cout << "Time taken by function: " << duration.count() << " microseconds" << endl;
+   
+
+        vector<client*> clis;
+        for (uint i =0 ; i<5; i++) {
+            clis.push_back(new client("127.0.0.1", 5000, 500));
+        }
+
+        cout << "Dodalo je đubre "<< endl;
+        sleep(5);
+        string sends = "Socket I ";
+        clis[1]->push(sends);
+        cout << clis[1]->pull() << endl; 
+        sends = "Socket III ";
+        clis[3]->push(sends);
+        cout << clis[3]->pull() << endl; 
 
     }
     catch (const string err) {

test/compile-client.ps1

@@ -0,0 +1 @@
+g++ client.cpp ../src/* -o client.exe -lssl -lcrypto -lws2_32

test/compile-server.ps1

@@ -0,0 +1 @@
+g++ server.cpp ../src/* -o server.exe -lssl -lcrypto -lws2_32

test/compile-server.sh

@@ -1 +1 @@
-g++ server.cpp ../src/* -o server.o -lssl -lcrypto
+g++ server.cpp ../src/* -o server.o -lssl -lcrypto -lpthread

test/server.cpp

@@ -6,21 +6,36 @@ using namespace std;
 
 int main() {
     try{
-        cout << "init server " << endl;
+        // cout << "init cert " << endl;
-        server myserver(5000);
+        // secure crypto ("../example/cert.pem", "../example/privkey.pem");
-        cout << "init cert " << endl;
+        // cout << "init server " << endl;
-        secure crypto ("../example/cert.pem", "../example/privkey.pem");
+        // server myserver(5000, 100, crypto.fds);
-        cout << "init client " << endl;
+        // cout << "init cert " << endl;
-
+        // secure crypto ("../example/cert.pem", "../example/privkey.pem");
-        comming myclient(&myserver, 100, crypto.fds);
+        // cout << "init server " << endl;
-        // comming myclient(&myserver, 100);
+        // server myserver(8000, 100, crypto.fds);
-        cout << "wait client " << myclient.ipv4 << endl;
+        
-
+        // cout << "init client " << endl;
-        string fromclient =  myclient.obey();
+
-        cout << "tell client " << fromclient << endl;
+        // // client myclient(&myserver, 100, crypto.fds);
+        // // comming myclient(&myserver, 100);
+        // myserver.accept();
+        // // cout << "wait client " << myclient.ipv4 << endl;
+        // cout << "wait client " << myserver.cli->ipv4 << endl;
+
+        // string fromclient =  myserver.cli->pull();
+        // // string fromclient =  myclient.pull();
+        // cout << "tell client " << fromclient << endl;
+        // // usleep(600*1000);
+        // sleep(5);
+        // myserver.cli->push(fromclient);
+        // string fromclient =  myserver.cli->pull();
+        // string fromclient =  myclient.pull();
+        // cout << "tell client " << fromclient << endl;
         // usleep(600*1000);
-        sleep(5);
+        //sleep(5);
-        myclient.tell(fromclient);
+        // myserver.cli->push(fromclient);
+        // myclient.push(fromclient);
         // myclient.~comming();
 
         // while (true) {
@@ -33,6 +48,31 @@ int main() {
         // }
 
         // sleep(80);
+
+
+        server myserver(5000, 100);
+        myserver.async(8, [](client &cli, mutex &io) {
+            cout << "Klijent " << cli.ipv4 << endl;
+            string fromclient = cli.pull();
+            // io.lock();
+            cout << "S klijenta " << fromclient << endl;
+            // io.unlock();
+            // fromclient += teststr;
+            cli.push(fromclient);
+        }, 0);
+
+        // string teststr = " Idemooo";
+
+        // myserver.sync([](client &cli, mutex &io) {
+        //     cout << "Klijent " << cli.ipv4 << endl;
+        //     string fromclient = cli.pull();
+        //     io.lock();
+        //     cout << "S klijenta " << fromclient << endl;
+        //     io.unlock();
+        //     // fromclient += teststr;
+        //     cli.push(fromclient);
+        // });
+
     }
     catch(const string err) {
         cout << err << endl;