Diff: EthernetInterface/Socket/Socket.cpp

Revision:

3:78f223d34f36

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/EthernetInterface/Socket/Socket.cpp	Tue Mar 05 02:34:44 2019 +0000
@@ -0,0 +1,91 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "Socket/Socket.h"
+#include <cstring>
+
+using std::memset;
+
+Socket::Socket() : _sock_fd(-1), _blocking(true), _timeout(1500) {
+    
+}
+
+void Socket::set_blocking(bool blocking, unsigned int timeout) {
+    _blocking = blocking;
+    _timeout = timeout;
+}
+
+int Socket::init_socket(int type) {
+    if (_sock_fd != -1)
+        return -1;
+    
+    int fd = lwip_socket(AF_INET, type, 0);
+    if (fd < 0)
+        return -1;
+    
+    _sock_fd = fd;
+    return 0;
+}
+
+int Socket::set_option(int level, int optname, const void *optval, socklen_t optlen) {
+    return lwip_setsockopt(_sock_fd, level, optname, optval, optlen);
+}
+
+int Socket::get_option(int level, int optname, void *optval, socklen_t *optlen) {
+    return lwip_getsockopt(_sock_fd, level, optname, optval, optlen);
+}
+
+int Socket::select(struct timeval *timeout, bool read, bool write) {
+    fd_set fdSet;
+    FD_ZERO(&fdSet);
+    FD_SET(_sock_fd, &fdSet);
+    
+    fd_set* readset  = (read ) ? (&fdSet) : (NULL);
+    fd_set* writeset = (write) ? (&fdSet) : (NULL);
+    
+    int ret = lwip_select(FD_SETSIZE, readset, writeset, NULL, timeout);
+    return (ret <= 0 || !FD_ISSET(_sock_fd, &fdSet)) ? (-1) : (0);
+}
+
+int Socket::wait_readable(TimeInterval& timeout) {
+    return select(&timeout._time, true, false);
+}
+
+int Socket::wait_writable(TimeInterval& timeout) {
+    return select(&timeout._time, false, true);
+}
+
+int Socket::close(bool shutdown) {
+    if (_sock_fd < 0)
+        return -1;
+    
+    if (shutdown)
+        lwip_shutdown(_sock_fd, SHUT_RDWR);
+    lwip_close(_sock_fd);
+    _sock_fd = -1;
+    
+    return 0;
+}
+
+Socket::~Socket() {
+    close(); //Don't want to leak
+}
+
+TimeInterval::TimeInterval(unsigned int ms) {
+    _time.tv_sec = ms / 1000;
+    _time.tv_usec = (ms - (_time.tv_sec * 1000)) * 1000;
+}