Move socket data from TCB to task group structure.

git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5570 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 97 insertions, 0 deletions

diff --git a/nuttx/sched/group_setupstreams.c b/nuttx/sched/group_setupstreams.c
new file mode 100644
index 000000000..88e266280
--- /dev/null
+++ b/nuttx/sched/group_setupstreams.c
@@ -0,0 +1,97 @@
+/****************************************************************************
+ * group_setupstreams.c
+ *
+ *   Copyright (C) 2007-2008, 2010-2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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 <sched.h>
+#include <fcntl.h>
+
+#include <nuttx/fs/fs.h>
+#include <nuttx/net/net.h>
+#include <nuttx/lib.h>
+
+/* Make sure that there are file or socket descriptors in the system and
+ * that some number of streams have been configured.
+ */
+
+#if CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NSOCKET_DESCRIPTORS > 0
+#if CONFIG_NFILE_STREAMS > 0
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: group_setupstreams
+ *
+ * Description:
+ *   Setup streams data structures that may be used for standard C buffered
+ *   I/O with underlying socket or file desciptors
+ *
+ ****************************************************************************/
+
+int group_setupstreams(FAR _TCB *tcb)
+{
+  DEBUGASSERT(tcb && tcb->group);
+
+  /* Initialize file streams for the task group */
+
+  lib_streaminit(&tcb->group->tg_streamlist);
+
+  /* fdopen to get the stdin, stdout and stderr streams. The following logic
+   * depends on the fact that the library layer will allocate FILEs in order.
+   *
+   * fd = 0 is stdin  (read-only)
+   * fd = 1 is stdout (write-only, append)
+   * fd = 2 is stderr (write-only, append)
+   */
+
+  (void)fs_fdopen(0, O_RDONLY,       tcb);
+  (void)fs_fdopen(1, O_WROK|O_CREAT, tcb);
+  (void)fs_fdopen(2, O_WROK|O_CREAT, tcb);
+
+  return OK;
+}
+
+#endif /* CONFIG_NFILE_STREAMS > 0 */
+#endif /* CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NSOCKET_DESCRIPTORS > 0*/