Prepare for assimilating msphttp

[libs/net.git] / source / net / datagramsocket.cpp

diff --git a/source/net/datagramsocket.cpp b/source/net/datagramsocket.cpp
new file mode 100644 (file)
index 0000000..d24ca4e
--- /dev/null
+++ b/source/net/datagramsocket.cpp
@@ -0,0 +1,100 @@
+#include <cerrno>
+#include <msp/core/systemerror.h>
+#include <msp/io/handle_private.h>
+#include <msp/strings/format.h>
+#include "datagramsocket.h"
+#include "sockaddr_private.h"
+#include "socket_private.h"
+
+namespace Msp {
+namespace Net {
+
+DatagramSocket::DatagramSocket(Family f, int p):
+       ClientSocket(f, SOCK_DGRAM, p)
+{
+#ifdef WIN32
+       WSAEventSelect(priv->handle, *priv->event, FD_READ|FD_CLOSE);
+#endif
+       set_events(IO::P_INPUT);
+}
+
+bool DatagramSocket::connect(const SockAddr &addr)
+{
+       SockAddr::SysAddr sa = addr.to_sys();
+
+       int err = ::connect(priv->handle, reinterpret_cast<sockaddr *>(&sa.addr), sa.size);
+       if(err==-1)
+       {
+#ifdef WIN32
+               throw system_error("connect", WSAGetLastError());
+#else
+               throw system_error("connect");
+#endif
+       }
+
+       delete peer_addr;
+       peer_addr = addr.copy();
+
+       delete local_addr;
+       SockAddr::SysAddr lsa;
+       getsockname(priv->handle, reinterpret_cast<sockaddr *>(&lsa.addr), &lsa.size);
+       local_addr = SockAddr::new_from_sys(lsa);
+
+       connected = true;
+
+       return true;
+}
+
+unsigned DatagramSocket::sendto(const char *buf, unsigned size, const SockAddr &addr)
+{
+       if(size==0)
+               return 0;
+
+       SockAddr::SysAddr sa = addr.to_sys();
+
+       int ret = ::sendto(priv->handle, buf, size, 0, reinterpret_cast<sockaddr *>(&sa.addr), sa.size);
+       if(ret<0)
+       {
+               if(errno==EAGAIN)
+                       return 0;
+               else
+               {
+#ifdef WIN32
+                       throw system_error("sendto", WSAGetLastError());
+#else
+                       throw system_error("sendto");
+#endif
+               }
+       }
+
+       return ret;
+}
+
+unsigned DatagramSocket::recvfrom(char *buf, unsigned size, SockAddr *&from_addr)
+{
+       if(size==0)
+               return 0;
+
+       SockAddr::SysAddr sa;
+       int ret = ::recvfrom(priv->handle, buf, size, 0, reinterpret_cast<sockaddr *>(&sa.addr), &sa.size);
+       if(ret<0)
+       {
+               if(errno==EAGAIN)
+                       return 0;
+               else
+               {
+#ifdef WIN32
+                       throw system_error("recvfrom", WSAGetLastError());
+#else
+                       throw system_error("recvfrom");
+#endif
+               }
+       }
+
+       from_addr = SockAddr::new_from_sys(sa);
+
+       return ret;
+}
+
+} // namespace Net
+} // namespace Msp