Merge pull request #198 from PX4/nuttx-merge-5596

Nuttx merge 5596

1 files changed, 100 insertions, 0 deletions

diff --git a/nuttx/sched/task_starthook.c b/nuttx/sched/task_starthook.c
new file mode 100644
index 000000000..1cb29349f
--- /dev/null
+++ b/nuttx/sched/task_starthook.c
@@ -0,0 +1,100 @@
+/****************************************************************************
+ * sched/task_start.c
+ *
+ *   Copyright (C) 2007-2010 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 <nuttx/sched.h>
+
+#ifdef CONFIG_SCHED_STARTHOOK
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Type Declarations
+ ****************************************************************************/
+
+/****************************************************************************
+ * Global Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: task_starthook
+ *
+ * Description:
+ *   Configure a start hook... a function that will be called on the thread
+ *   of the new task before the new task's main entry point is called.
+ *   The start hook is useful, for example, for setting up automatic
+ *   configuration of C++ constructors.
+ *
+ * Inputs:
+ *   tcb - The new, unstarted task task that needs the start hook
+ *   starthook - The pointer to the start hook function
+ *   arg - The argument to pass to the start hook function.
+ *
+ * Return:
+ *   None
+ *
+ ****************************************************************************/
+
+void task_starthook(FAR _TCB *tcb, starthook_t starthook, FAR void *arg)
+{
+  DEBUGASSERT(tcb);
+  tcb->starthook    = starthook;
+  tcb->starthookarg = arg;
+}
+
+#endif /* CONFIG_SCHED_STARTHOOK */