From c3d06d531c497c665671386bc32dd18fbfac49b3 Mon Sep 17 00:00:00 2001
From: Dhananjay Balan <mb.dhananjay@gmail.com>
Date: Sun, 28 Jul 2013 13:01:06 +0530
Subject: Abstraction for HEAP.

Heap_Control Abstraction is added. It will need some more grooming
though.
---
 tools/gdb/python/heaps.py | 62 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 tools/gdb/python/heaps.py

diff --git a/tools/gdb/python/heaps.py b/tools/gdb/python/heaps.py
new file mode 100644
index 0000000..4798912
--- /dev/null
+++ b/tools/gdb/python/heaps.py
@@ -0,0 +1,62 @@
+#
+# RTEMS heap
+#
+
+class block:
+    '''Abstract a heap block structure'''
+
+    def __init__(self, blk):
+        self.block = blk
+        self.prev_size = self.block['prev_size']
+        self.size_flag = self.block['size_and_flag']
+
+    def null(self):
+        if self.block:
+            return False
+        return True
+
+
+    def next(self):
+        if not self.null():
+            self.block = self.block['next']
+
+    def prev(self):
+        if not self.null():
+            self.block = self.block['prev']
+
+class stats:
+    ''heap statistics''
+
+    def __init__(self,stat):
+        self.stat = stat
+
+    def avail(self):
+        val = self.stat['size']
+        return val
+
+    def free(self):
+        return self.stat['free_size']
+
+    # ToDo : incorporate others
+
+def control:
+    '''Abstract a heap control structure'''
+
+    def __init__(self, ctl):
+        self.ctl = ctl
+
+    def first(self):
+        b = block(self.ctl['first_block'])
+        return b
+
+    def last(self):
+        b = block(self.ctl['last_block'])
+        return b
+
+    def free(self):
+        b = block(self.ctl['free_list'])
+        return b
+
+    def stat(self):
+        st = stats(self.ctl['stats'])
+        return st
\ No newline at end of file
-- 
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