SocketWrapper: removing close() because directly managed by shared_ptr

Author: leonardocavagnis

libraries/SocketWrapper/SocketWrapper.h

@@ -80,8 +80,7 @@ class ZephyrSocketWrapper {
 		}
 
 		if (::connect(*sock_fd, res->ai_addr, res->ai_addrlen) < 0) {
-			::close(*sock_fd);
-			*sock_fd = -1;
+			sock_fd = nullptr;
 			rv = false;
 			goto exit;
 		}
@@ -113,8 +112,7 @@ class ZephyrSocketWrapper {
 		}
 
 		if (::connect(*sock_fd, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
-			::close(*sock_fd);
-			*sock_fd = -1;
+			sock_fd = nullptr;
 			return false;
 		}
 
@@ -194,8 +192,7 @@ class ZephyrSocketWrapper {
 		}
 
 		if (!rv && *sock_fd >= 0) {
-			::close(*sock_fd);
-			*sock_fd = -1;
+			sock_fd = nullptr;
 		}
 		return rv;
 	}
@@ -250,8 +247,7 @@ class ZephyrSocketWrapper {
 
 	void close() {
 		if (sock_fd && *sock_fd != -1) {
-			::close(*sock_fd);
-			*sock_fd = -1;
+			sock_fd = nullptr;
 		}
 	}
 
@@ -272,8 +268,7 @@ class ZephyrSocketWrapper {
 		zsock_ioctl(*sock_fd, ZFD_IOCTL_FIONBIO);
 
 		if (::bind(*sock_fd, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
-			::close(*sock_fd);
-			*sock_fd = -1;
+			sock_fd = nullptr;
 			return false;
 		}
 
@@ -286,8 +281,7 @@ class ZephyrSocketWrapper {
 		}
 
 		if (::listen(*sock_fd, backlog) < 0) {
-			::close(*sock_fd);
-			*sock_fd = -1;
+			sock_fd = nullptr;
 			return false;
 		}