Message 5
buf.h updated.
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From: Leejay Wu <lw2j+@andrew.cmu.edu>
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To: Andrew BBoard Account <bb+academic.cs.15-721@andrew.cmu.edu>
Subject: buf.h updated.
Cc:
The solution code used a Replacer class, which provided a common
API for deciding how to choose frames to replace. Well, not
exactly common -- it's tuned towards a clock-sweep algorithm,
but that's another story.
In any event, just like in the full Minibase version the BufMgr
constructor accepted the Replacer object as an optional
parameter. Which means that, to link successfully, your BufMgr
constructor must do the same -- and this has been added.
IOW, a forward reference sometime before the BufMgr decl,
class Replacer;
and a changed constructor prototype:
BufMgr(int bufsize, Replacer *replacer=0);
--
| lw2j@cs.cmu.edu | #include <0.0648g NaCl> |
|--------------------------|-----------------------------|
| #include <stddiscl.h> | Spam returned to postmaster |