Changes between Version 8 and Version 9 of GCMassacre

Timestamp:

05/26/10 12:23:14 (12 years ago)

Author:

bacek

Comment:

Add note about using "PMC_Allocator" as "Allocator"

GCMassacre

@@ -420 +420 @@
 
 }}}
+
+== Rename and extend current "PMC_Allocator" ==
+
+Current PMC_Allocator is pretty fast, well tested and (almost) suitable to be described {{{Allocator}}}. We just have to implement {{{Allocator.is_owned}}} method. Design of {{{PMC_Allocator}}} isn't "tuned" for such usecase, but it should be fine because {{{.is_owned}}} called only during tracing system stack.
+
+Roughly implmentation of {{{.is_owned}}} will be this:
+{{{
+#!perl
+PMC_Allocator.is_owned($obj) {
+    my $arena = self.top_arena;
+    while $arena {
+       return Bool::True if ptr_diff($arena, $obj) < 4096;
+       $arena = $arena.prev;
+    }
+    return Bool::False;
+}
+
+}}}