add tcp client; test tcp server and client;

CMakeLists.txt

@@ -6,7 +6,7 @@ set(CMAKE_CXX_STANDARD 14)
 include_directories(include/)
 include_directories(utils/)
 
-find_package(Boost   REQUIRED)
+find_package(Boost   REQUIRED thread)
 find_package(OpenSSL 1.1.1 REQUIRED)
 
 include_directories(${Boost_INCLUDE_DIRS} ${OPENSSL_INCLUDE_DIR} ${SQLiteCpp_INCLUDE_DIRS})

include/communicate/tcp_client.h

@@ -0,0 +1,45 @@
+//
+// Created by 胡宇 on 2020/7/9.
+//
+
+#ifndef NET_TCP_CLIENT_H
+#define NET_TCP_CLIENT_H
+
+#include <cstring>
+#include <string>
+#include <stdexcept>
+#include <sstream>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <boost/thread/thread.hpp>
+
+namespace Net {
+
+    class TCPClient {
+    public:
+        TCPClient(const std::string &ip, int port);
+
+        int sendData(const std::string &data);
+
+
+    private:
+        int fd{};
+        struct sockaddr_in client_addr{};
+
+        std::stringstream recv_buff;
+
+        void create_socket_and_connection();
+
+        void recv_cycle();
+
+        static void recv_data(TCPClient *client);
+    };
+
+}
+
+
+#endif //NET_TCP_CLIENT_H

include/communicate/tcp_server.h

@@ -11,6 +11,7 @@
 #include <vector>
 #include <sstream>
 #include <string>
+#include <queue>
 
 #include <sys/types.h>
 #include <sys/socket.h>
@@ -43,7 +44,7 @@ namespace Net {
         int fd;
         int status = 0;
         struct sockaddr_in server_addr;
-        std::stringstream recv_buff;
+        std::queue<uint8_t> recv_buff;
         boost::mutex buff_mutex;
         boost::thread *p_accept_manager_thread;
 
@@ -51,7 +52,7 @@ namespace Net {
 
         static void accept_manager(TCPServer *server);
 
-        static void accept(int fd, boost::mutex *buff_mutex, std::stringstream *recv_buff, const int *status);
+        static void accept(int fd, boost::mutex *buff_mutex, std::queue<uint8_t> *recv_buff, const int *status);
 
         void create_socket(int port);
     };

include/debug_tools/print_tools.h

@@ -19,13 +19,11 @@ namespace Net {
 
         using FormalItem = pair<string, string>;
 
-        void printError(string error_info);
+        void debugPrintError(const string &error_info);
 
-        void printWarning(string warning_info);
+        void debugPrintWarning(const string &warning_info);
 
-        void printSuccess(string success_info);
-
-        void printRed(string red_info);
+        void debugPrintSuccess(const string &success_info);
 
         void printInfo(const string& info, const string& tag);
 

src/communicate/CMakeLists.txt

@@ -1,5 +1,3 @@
 file(GLOB commuSrc *.cpp)
 
-add_library(commu STATIC ${commuSrc})
-
-target_link_libraries(commu utils debugTools)
+add_library(commu STATIC ${commuSrc})

src/communicate/tcp_client.cpp

@@ -0,0 +1,41 @@
+//
+// Created by 胡宇 on 2020/7/9.
+//
+
+#include "communicate/tcp_client.h"
+
+void Net::TCPClient::recv_data(Net::TCPClient *client) {
+    u_char buff[1024];
+    int len;
+    while ((len = recv(client->fd, buff, sizeof(buff), 0)) > 0) {
+        client->recv_buff.write(reinterpret_cast<const char *>(buff), len);
+    }
+}
+
+void Net::TCPClient::recv_cycle() {
+    boost::thread recv_thread(TCPClient::recv_data,
+                              this);
+    recv_thread.detach();
+}
+
+void Net::TCPClient::create_socket_and_connection() {
+    if ((fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) {
+        throw std::runtime_error("create socket failed.");
+    }
+    connect(fd, (struct sockaddr *) &client_addr, sizeof(client_addr));
+}
+
+int Net::TCPClient::sendData(const std::string &data) {
+    create_socket_and_connection();
+    recv_cycle();
+    int len = send(fd, data.data(), data.size(), 0);
+    close(fd);
+    return len;
+}
+
+Net::TCPClient::TCPClient(const std::string &ip, int port) {
+    std::memset(&client_addr, 0, sizeof(client_addr));
+    client_addr.sin_family = AF_INET;
+    client_addr.sin_addr.s_addr = inet_addr(ip.c_str());
+    client_addr.sin_port = htons(port);
+}

src/communicate/tcp_server.cpp

@@ -2,17 +2,21 @@
 // Created by 胡宇 on 2020/7/7.
 //
 
+#include "debug_tools/print_tools.h"
 #include "communicate/tcp_server.h"
 
 void Net::TCPServer::cycle() {
     boost::thread accept_manager_thread(TCPServer::accept_manager, this);
     this->p_accept_manager_thread = &accept_manager_thread;
-    accept_manager_thread.join();
+    accept_manager_thread.detach();
 }
 
 void Net::TCPServer::accept_manager(Net::TCPServer *server) {
+    Net::PrintTools::debugPrintSuccess("AcceptManager Started.");
     while(true){
         int connect_fd = ::accept(server->fd, nullptr, nullptr);
+        Net::PrintTools::debugPrintSuccess("New Connection.");
+
         if(connect_fd == -1) throw std::runtime_error("accept tcp connection error");
         else{
             boost::thread accept_thread(TCPServer::accept, connect_fd, &server->buff_mutex, &server->recv_buff, &server->status);
@@ -21,19 +25,23 @@ void Net::TCPServer::accept_manager(Net::TCPServer *server) {
     }
 }
 
-void Net::TCPServer::accept(int fd, boost::mutex *buff_mutex, std::stringstream *recv_buff, const int *status) {
+void Net::TCPServer::accept(int fd, boost::mutex *buff_mutex, std::queue<uint8_t> *recv_buff, const int *status) {
+    Net::PrintTools::debugPrintSuccess("Try Getting Data From Connection.");
     uint8_t buff[1024];
     int len;
     std::vector<uint8_t> accept_buff;
     while((len = recv(fd, buff, sizeof(buff), 0)) > 0 && *status == 0){
+        Net::PrintTools::debugPrintSuccess("Received.");
         for(int i = 0; i < len; ++i) accept_buff.push_back(buff[i]);
     }
     if(*status == 0) {
         buff_mutex->lock();
-        recv_buff->write(reinterpret_cast<const char *>(accept_buff.data()), accept_buff.size());
+        for(unsigned char & i : accept_buff)
+            recv_buff->push(i);
         buff_mutex->unlock();
     }
     close(fd);
+    Net::PrintTools::debugPrintSuccess("Connection Closed.");
 }
 
 void Net::TCPServer::create_socket(int port) {
@@ -61,5 +69,12 @@ Net::TCPServer::TCPServer(int port, int max_connection) {
 }
 
 uint8_t Net::TCPServer::readByte() {
-    return recv_buff.get();
+    uint8_t byte = '\0';
+    buff_mutex.try_lock();
+    if(!recv_buff.empty()) {
+        byte = recv_buff.front();
+        recv_buff.pop();
+    }
+    buff_mutex.unlock();
+    return byte;
 }

src/debug_tools/print_tools.cpp

@@ -8,22 +8,18 @@ using std::string;
 
 namespace Net {
     namespace PrintTools {
-        void printError(const string &error_info) {
+        void debugPrintError(const string &error_info) {
             printf("\033[31mError: %s\033[0m\n", error_info.data());
         }
 
-        void printWarning(const string &warning_info) {
+        void debugPrintWarning(const string &warning_info) {
             printf("\033[33mWarning: %s\033[0m\n", warning_info.data());
         }
 
-        void printSuccess(const string &success_info) {
+        void debugPrintSuccess(const string &success_info) {
             printf("\033[32m%s\033[0m\n", success_info.data());
         }
 
-        void printRed(const string &red_info) {
-            printf("\033[31m%s\n\033[0m", red_info.data());
-        }
-
         void printInfo(const string& info, const string& tag) {
             printf("[DEBUG INFO] %s ", info.data());
             if(!tag.empty())

src/utils/CMakeLists.txt

@@ -1,5 +1,3 @@
 file(GLOB utilSrc *.cpp)
 
 add_library(utils STATIC ${utilSrc})
-
-target_link_libraries(utils debugTools ssl crypto)

test/CMakeLists.txt

@@ -6,3 +6,4 @@ set(GTEST_LIBS gtest gmock pthread dl)
 link_directories(${GTEST_LIB})
 
 add_subdirectory(test_util)
+add_subdirectory(test_commu)

test/test_commu/CMakeLists.txt

@@ -0,0 +1,9 @@
+
+file(GLOB testSrc *.cpp)
+
+add_compile_definitions(DEBUG)
+
+add_executable(testCommu ${testSrc})
+
+target_link_libraries(testCommu commu debugTools Boost::thread)
+

test/test_commu/main.cpp

@@ -0,0 +1,31 @@
+//
+// Created by 胡宇 on 2020/7/9.
+//
+
+#include <unistd.h>
+#include <cstdio>
+
+#include "debug_tools/print_tools.h"
+#include "communicate/tcp_server.h"
+#include "communicate/tcp_client.h"
+
+using namespace Net;
+
+int main(int argc, char *argv[]){
+    if(fork() == 0) {
+        PrintTools::debugPrintSuccess("Child Started.");
+        TCPClient client("127.0.0.1", 9048);
+        for(int i = 0; i < 32; i++, usleep(1e4))
+            client.sendData("Hello");
+        PrintTools::debugPrintSuccess("Child Exited.");
+    }
+    else{
+        PrintTools::debugPrintSuccess("Father Started.");
+        TCPServer server(9048, 100);
+        while (true){
+            std::putchar(server.readByte());
+            usleep(1e3);
+        }
+    }
+    return 0;
+}

test/test_util/CMakeLists.txt

@@ -5,7 +5,7 @@ add_executable(testUtils ${testSrc})
 
 message(${GTEST_LIBS})
 
-target_link_libraries(testUtils utils debugTools ${GTEST_LIBS})
+target_link_libraries(testUtils utils debugTools ssl crypto ${GTEST_LIBS})
 
 add_test(Name testUtils
          COMMAND testUtils)