From: Brian Warner <warner@allmydata.com>
Date: Mon, 19 May 2008 21:16:02 +0000 (-0700)
Subject: servermap.py: add size_of_version(), to retrieve the size of a mutable file version
X-Git-Tag: allmydata-tahoe-1.1.0~124
X-Git-Url: https://git.rkrishnan.org/architecture.txt?a=commitdiff_plain;h=154dca10a089425450b50081f8f05bea60a00c55;p=tahoe-lafs%2Ftahoe-lafs.git

servermap.py: add size_of_version(), to retrieve the size of a mutable file version
---

diff --git a/src/allmydata/mutable/servermap.py b/src/allmydata/mutable/servermap.py
index 0bf8e9d7..4fbb83f4 100644
--- a/src/allmydata/mutable/servermap.py
+++ b/src/allmydata/mutable/servermap.py
@@ -258,6 +258,13 @@ class ServerMap:
             return recoverable[-1]
         return None
 
+    def size_of_version(self, verinfo):
+        """Given a versionid (perhaps returned by best_recoverable_version),
+        return the size of the file in bytes."""
+        (seqnum, root_hash, IV, segsize, datalength, k, N, prefix,
+         offsets_tuple) = verinfo
+        return datalength
+
     def unrecoverable_newer_versions(self):
         # Return a dict of versionid -> health, for versions that are
         # unrecoverable and have later seqnums than any recoverable versions.