Resync new repository with old repo r5166

git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5153 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 114 insertions, 0 deletions

diff --git a/nuttx/sched/sched_releasefiles.c b/nuttx/sched/sched_releasefiles.c
new file mode 100644
index 000000000..a3ef71af4
--- /dev/null
+++ b/nuttx/sched/sched_releasefiles.c
@@ -0,0 +1,114 @@
+/****************************************************************************
+ * sched/sched_releasefiles.c
+ *
+ *   Copyright (C) 2007, 2008, 2012 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 <nuttx/fs/fs.h>
+#include <nuttx/net/net.h>
+#include <nuttx/lib.h>
+
+#if CONFIG_NFILE_DESCRIPTORS > 0 || CONFIG_NSOCKET_DESCRIPTORS > 0
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: sched_releasefiles
+ *
+ * Description:
+ *   Release file resources attached to a TCB.  This file may be called
+ *   multiple times as a task exists.  It will be called as early as possible
+ *   to support proper closing of complex drivers that may need to wait
+ *   on external events.
+ *
+ * Parameters:
+ *   tcb - tcb of the new task.
+ *
+ * Return Value:
+ *   None
+ *
+ * Assumptions:
+ *
+ ****************************************************************************/
+
+int sched_releasefiles(_TCB *tcb)
+{
+  if (tcb)
+    {
+#if CONFIG_NFILE_DESCRIPTORS > 0
+      /* Free the file descriptor list */
+
+      if (tcb->filelist)
+        {
+          files_releaselist(tcb->filelist);
+          tcb->filelist = NULL;
+        }
+
+#if CONFIG_NFILE_STREAMS > 0
+      /* Free the stream list */
+
+      if (tcb->streams)
+        {
+          lib_releaselist(tcb->streams);
+          tcb->streams = NULL;
+        }
+#endif /* CONFIG_NFILE_STREAMS */
+#endif /* CONFIG_NFILE_DESCRIPTORS */
+
+#if CONFIG_NSOCKET_DESCRIPTORS > 0
+      /* Free the file descriptor list */
+
+      if (tcb->sockets)
+        {
+          net_releaselist(tcb->sockets);
+          tcb->sockets = NULL;
+        }
+#endif /* CONFIG_NSOCKET_DESCRIPTORS */
+    }
+
+  return OK;
+}
+
+#endif /* CONFIG_NFILE_DESCRIPTORS || CONFIG_NSOCKET_DESCRIPTORS */