1 files changed, 84 insertions, 0 deletions
diff --git a/nuttx/sched/sched_foreach.c b/nuttx/sched/sched_foreach.c
new file mode 100644
index 000000000..192094533
--- /dev/null
+++ b/nuttx/sched/sched_foreach.c
@@ -0,0 +1,84 @@
+/************************************************************************
+ * sched/sched_foreach.c
+ *
+ *   Copyright (C) 2007, 2009 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 <sched.h>
+#include "os_internal.h"
+
+/************************************************************************
+ * Global Functions
+ ************************************************************************/
+
+/************************************************************************
+ * Name: sched_foreach
+ *
+ * Description:
+ *   Enumerate over each task and provide the TCB of each
+ *   task to a user callback functions.  Interrupts will be
+ *   disabled throughout this enumeration!
+ *
+ * Parameters:
+ *   handler - The function to be called with the TCB of
+ *     each task
+ *
+ * Return Value:
+ *   None
+ *
+ * Assumptions:
+ *
+ ************************************************************************/
+
+void sched_foreach(sched_foreach_t handler, FAR void *arg)
+{
+  irqstate_t flags = irqsave();
+  int ndx;
+
+  /* Verify that the PID is within range */
+
+  for (ndx = 0; ndx < CONFIG_MAX_TASKS; ndx++)
+    {
+       if (g_pidhash[ndx].tcb)
+         {
+           handler(g_pidhash[ndx].tcb, arg);
+         }
+    }
+
+  irqrestore(flags);
+}
+
+