feat: 封装了 TCP Socket 连接层并通过测试

include/ouc_server/socket/tcp_socket.cpp

@@ -0,0 +1,75 @@
+#include <socket/tcp_socket.hpp>
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+
+namespace ouc_server
+{
+    namespace ouc_socket
+    {
+        TCPSocket::TCPSocket(int fd)
+            : listen_fd(fd)
+        {
+        }
+
+        TCPSocket::TCPSocket(TCPSocket &&other)
+            : listen_fd(other.listen_fd)
+        {
+            other.listen_fd = -1;
+        }
+
+        TCPSocket &TCPSocket::operator=(TCPSocket &&other)
+        {
+            if (this == &other)
+                return *this;
+
+            if (listen_fd >= 0)
+                close();
+            listen_fd = other.listen_fd;
+            other.listen_fd = -1;
+
+            return *this;
+        }
+
+        TCPSocket TCPSocket::create()
+        {
+            int fd = socket(AF_INET, SOCK_STREAM | SOCK_NONBLOCK, 0);
+            if (fd < 0)
+                perror("socket");
+
+            int opt = 1;
+            setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
+            return TCPSocket(fd);
+        }
+
+        bool TCPSocket::bind(const std::string &ip, uint16_t port)
+        {
+            sockaddr_in addr{};
+            addr.sin_family = AF_INET;
+            addr.sin_port = htons(port);
+            if (inet_pton(AF_INET, ip.c_str(), &addr.sin_addr) != 1)
+                return false;
+            return ::bind(listen_fd, (sockaddr *)&addr, sizeof(addr)) == 0;
+        }
+
+        bool TCPSocket::listen(int backlog) { return ::listen(listen_fd, backlog) == 0; }
+
+        TCPSocket TCPSocket::accept()
+        {
+            int client_fd = ::accept4(listen_fd, nullptr, nullptr, SOCK_NONBLOCK);
+            if (client_fd < 0)
+                return TCPSocket();
+            return TCPSocket(client_fd);
+        }
+
+        bool TCPSocket::close() { return ::close(listen_fd) == 0; }
+
+        ssize_t TCPSocket::send(const char *buf, size_t len) { return ::send(listen_fd, buf, len, 0); }
+
+        ssize_t TCPSocket::send(const char *buf) { return this->send(buf, sizeof(buf)); }
+
+        ssize_t TCPSocket::recv(void *buf, size_t len) { return ::recv(listen_fd, buf, len, 0); }
+    }
+}