[glib/glib-2-34] Revert "Return correct value for g_socket_get_available_bytes() on Windows and OSX"

[Dan Winship <danw src gnome org>]

commit c1609942ea9d9ff9b04560405162fda008e38e44
Author: Dan Winship <danw gnome org>
Date:   Mon Nov 19 23:13:29 2012 -0500

    Revert "Return correct value for g_socket_get_available_bytes() on Windows and OSX"
    
    This neither compiles nor does what it's supposed to on Windows.
    
    This reverts commit 49ad4e9494e4497cffcf145d3515231bcf05de29.

 gio/gsocket.c      |   15 +++----------
 gio/tests/socket.c |   53 ----------------------------------------------------
 2 files changed, 4 insertions(+), 64 deletions(-)
---
diff --git a/gio/gsocket.c b/gio/gsocket.c
index 1a8ed50..13dff46 100644
--- a/gio/gsocket.c
+++ b/gio/gsocket.c
@@ -2368,10 +2368,7 @@ g_socket_check_connect_result (GSocket  *socket,
  * g_socket_get_available_bytes:
  * @socket: a #GSocket
  *
- * Get the amount of data that can be read from the socket without
- * blocking. In the case of datagram sockets this returns the size
- * of the first datagram and not the sum of the sizes of all currently
- * queued datagrams.
+ * Get the amount of data pending in the OS input buffer.
  *
  * Returns: the number of bytes that can be read from the socket
  * without blocking or -1 on error.
@@ -2385,19 +2382,15 @@ g_socket_get_available_bytes (GSocket *socket)
   gulong avail = 0;
 #else
   gint avail = 0;
-  gsize avail_len = sizeof (avail);
 #endif
 
   g_return_val_if_fail (G_IS_SOCKET (socket), -1);
 
-#if defined(G_OS_WIN32)
-  if (WSAIoctl (socket->priv->fd, FIONREAD, NULL, 0, &avail, sizeof (avail), 0, 0) == SOCKET_ERROR)
-    return -1;
-#elif defined(SO_NREAD)
-  if (getsockopt (socket->priv->fd, SOL_SOCKET, SO_NREAD, &avail, &avail_len) < 0)
+#ifndef G_OS_WIN32
+  if (ioctl (socket->priv->fd, FIONREAD, &avail) < 0)
     return -1;
 #else
-  if (ioctl (socket->priv->fd, FIONREAD, &avail) < 0)
+  if (ioctlsocket (socket->priv->fd, FIONREAD, &avail) == SOCKET_ERROR)
     return -1;
 #endif
 
diff --git a/gio/tests/socket.c b/gio/tests/socket.c
index 3790415..0a61c9f 100644
--- a/gio/tests/socket.c
+++ b/gio/tests/socket.c
@@ -813,58 +813,6 @@ test_unix_connection_ancillary_data (void)
 }
 #endif /* G_OS_UNIX */
 
-static void
-test_datagram_get_available (void)
-{
-  GError *err = NULL;
-  GSocket *server, *client;
-  GInetAddress *addr;
-  GSocketAddress *saddr;
-  gchar data[] = "0123456789abcdef";
-
-  server = g_socket_new (G_SOCKET_FAMILY_IPV4,
-                                G_SOCKET_TYPE_DATAGRAM,
-                                G_SOCKET_PROTOCOL_DEFAULT,
-                                &err);
-  g_assert_no_error (err);
-  g_assert (G_IS_SOCKET (server));
-
-  client = g_socket_new (G_SOCKET_FAMILY_IPV4,
-			 G_SOCKET_TYPE_DATAGRAM,
-			 G_SOCKET_PROTOCOL_DEFAULT,
-			 &err);
-  g_assert_no_error (err);
-  g_assert (G_IS_SOCKET (client));
-
-  addr = g_inet_address_new_any (G_SOCKET_FAMILY_IPV4);
-  saddr = g_inet_socket_address_new (addr, 0);
-
-  g_socket_bind (server, saddr, TRUE, &err);
-  g_assert_no_error (err);
-  g_object_unref (saddr);
-  g_object_unref (addr);
-
-  saddr = g_socket_get_local_address (server, &err);
-  g_assert_no_error (err);
-
-  g_socket_send_to (client, saddr, data, sizeof (data), NULL, &err);
-  g_assert_no_error (err);
-
-  g_assert_cmpint (g_socket_get_available_bytes (server), ==, sizeof (data));
-
-  g_socket_send_to (client, saddr, data, sizeof (data), NULL, &err);
-  g_assert_no_error (err);
-
-  g_assert_cmpint (g_socket_get_available_bytes (server), ==, sizeof (data));
-
-  g_socket_close (server, &err);
-  g_assert_no_error (err);
-
-  g_object_unref (saddr);
-  g_object_unref (server);
-  g_object_unref (client);
-}
-
 int
 main (int   argc,
       char *argv[])
@@ -887,7 +835,6 @@ main (int   argc,
   g_test_add_func ("/socket/unix-connection", test_unix_connection);
   g_test_add_func ("/socket/unix-connection-ancillary-data", test_unix_connection_ancillary_data);
 #endif
-  g_test_add_func ("/socket/datagram_get_available", test_datagram_get_available);
 
   return g_test_run();
 }