1 files changed, 127 insertions, 0 deletions
diff --git a/nuttx/graphics/nxmu/nx_openwindow.c b/nuttx/graphics/nxmu/nx_openwindow.c
new file mode 100644
index 000000000..927f5b8fd
--- /dev/null
+++ b/nuttx/graphics/nxmu/nx_openwindow.c
@@ -0,0 +1,127 @@
+/****************************************************************************
+ * graphics/nxmu/nx_openwindow.c
+ *
+ *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/nx.h>
+#include "nxfe.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nx_openwindow
+ *
+ * Description:
+ *   Create a new window.
+ *
+ * Input Parameters:
+ *   handle - The handle returned by nx_connect
+ *   wnd    - Location to return the handle of the new window
+ *
+ * Return:
+ *   Success: A non-NULL handle used with subsequent NX accesses
+ *   Failure:  NULL is returned and errno is set appropriately
+ *
+ ****************************************************************************/
+
+NXWINDOW nx_openwindow(NXHANDLE handle)
+{
+  FAR struct nxfe_conn_s *conn = (FAR struct nxfe_conn_s *)handle;
+  FAR struct nxbe_window_s *wnd;
+  struct nxsvrmsg_openwindow_s outmsg;
+  int ret;
+
+  /* Pre-allocate the window structure */
+
+  wnd = (FAR struct nxbe_window_s *)zalloc(sizeof(struct nxbe_window_s));
+  if (!wnd)
+    {
+      errno = ENOMEM;
+      return NULL;
+    }
+
+  /* Request initialization the new window from the server */
+
+  outmsg.msgid = NX_SVRMSG_OPENWINDOW;
+  outmsg.conn  = conn;
+  outmsg.wnd   = wnd;
+
+  ret = mq_send(conn->cwrmq, &outmsg, sizeof(struct nxsvrmsg_openwindow_s), NX_SVRMSG_PRIO);
+  if (ret < 0)
+    {
+      gdbg("mq_send failed: %d\n", errno);
+      free(wnd);
+      return NULL;
+    }
+
+  /* Return the uninitialized window reference.  Since the server
+   * serializes all operations, we can be assured that the window will
+   * be initialized before the first operation on the window.
+   */
+
+  return (NXWINDOW)wnd;
+}
+