Created student weenix repository

1 files changed, 55 insertions, 0 deletions

diff --git a/kernel/mm/slab.py b/kernel/mm/slab.py
new file mode 100644
index 0000000..1b0c8fb
--- /dev/null
+++ b/kernel/mm/slab.py
@@ -0,0 +1,55 @@
+import gdb
+
+import weenix
+import weenix.kmem
+
+
+class SlabCommand(weenix.Command):
+    def __init__(self):
+        weenix.Command.__init__(self, "slab", gdb.COMMAND_DATA)
+
+    def _allocators(self):
+        l = list()
+        for alloc in weenix.kmem.allocators():
+            l.append(alloc)
+        return l
+
+    def invoke(self, args, tty):
+        names = list()
+        slabs = list()
+        sizes = list()
+        counts = list()
+
+        names.append("")
+        slabs.append("slabs")
+        sizes.append("objsize")
+        counts.append("allocated")
+
+        for alloc in weenix.kmem.allocators():
+            names.append(alloc.name())
+            slabs.append(str(len(list(alloc.slabs()))))
+            sizes.append(str(alloc.size()))
+            counts.append(str(len(list(alloc.objs()))))
+
+        namewidth = max(map(lambda x: len(x), names))
+        slabwidth = max(map(lambda x: len(x), slabs))
+        sizewidth = max(map(lambda x: len(x), sizes))
+        countwidth = max(map(lambda x: len(x), counts))
+
+        for name, slab, size, count in zip(names, slabs, sizes, counts):
+            print(
+                "{1:<{0}} {3:>{2}} {5:>{4}} {7:>{6}}".format(
+                    namewidth, name, slabwidth, slab, sizewidth, size, countwidth, count
+                )
+            )
+
+    def complete(self, line, word):
+        l = map(lambda x: x.name(), self._allocators())
+        l = filter(lambda x: x.startswith(word), l)
+        for used in line.split():
+            l = filter(lambda x: x != used, l)
+        l.sort()
+        return l
+
+
+SlabCommand()