Created student weenix repository

1 files changed, 47 insertions, 0 deletions

diff --git a/kernel/mm/page.py b/kernel/mm/page.py
new file mode 100644
index 0000000..9dfedf0
--- /dev/null
+++ b/kernel/mm/page.py
@@ -0,0 +1,47 @@
+import gdb
+
+import weenix
+import weenix.kmem
+
+
+class PageCommand(weenix.Command):
+    def __init__(self):
+        weenix.Command.__init__(self, "page", gdb.COMMAND_DATA, gdb.COMPLETE_NONE)
+
+    def invoke(self, args, tty):
+        total = 0
+        print("pagesize: {0}".format(weenix.kmem.pagesize()))
+
+        names = list()
+        blobs = list()
+        pages = list()
+        bytes = list()
+
+        for order, count in weenix.kmem.freepages().items():
+            pcount = count * (1 << order)
+            bcount = pcount * weenix.kmem.pagesize()
+            names.append("freepages[{0}]:".format(order))
+            blobs.append("{0} blob{1}".format(count, " " if (count == 1) else "s"))
+            pages.append("{0} page{1}".format(pcount, " " if (pcount == 1) else "s"))
+            bytes.append("{0} byte{1}".format(bcount, " " if (bcount == 1) else "s"))
+            total += count * (1 << order)
+
+        names.append("total:")
+        blobs.append("")
+        pages.append("{0} page{1}".format(total, " " if (total == 1) else "s"))
+        bytes.append("{0} bytes".format(total * weenix.kmem.pagesize()))
+
+        namewidth = max(list(map(lambda x: len(x), names)))
+        blobwidth = max(list(map(lambda x: len(x), blobs)))
+        pagewidth = max(list(map(lambda x: len(x), pages)))
+        bytewidth = max(list(map(lambda x: len(x), bytes)))
+
+        for name, blob, page, byte in zip(names, blobs, pages, bytes):
+            print(
+                "{1:<{0}} {3:>{2}} {5:>{4}} {7:>{6}}".format(
+                    namewidth, name, blobwidth, blob, pagewidth, page, bytewidth, byte
+                )
+            )
+
+
+PageCommand()