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authorKim Alvefur <zash@zash.se>2015-12-11 20:29:55 +0100
committerKim Alvefur <zash@zash.se>2015-12-11 20:29:55 +0100
commit25a50fa01abd5e64f203b4ec9c47f9113998d030 (patch)
treeabd8bbac84e2a41c5e8238b38c39092c0fedc2db
parent1099fb8dd73854dcf77e618378034869ca096638 (diff)
downloadprosody-25a50fa01abd5e64f203b4ec9c47f9113998d030.tar.gz
prosody-25a50fa01abd5e64f203b4ec9c47f9113998d030.zip
util.datamanager: Add some comments about the append function
-rw-r--r--util/datamanager.lua3
1 files changed, 3 insertions, 0 deletions
diff --git a/util/datamanager.lua b/util/datamanager.lua
index ce4c5b5a..510c0161 100644
--- a/util/datamanager.lua
+++ b/util/datamanager.lua
@@ -209,17 +209,20 @@ local function store(username, host, datastore, data)
return true;
end
+-- Append a blob of data to a file
local function append(username, host, datastore, ext, data)
local filename = getpath(username, host, datastore, ext, true);
local ok;
local f, msg = io_open(filename, "r+");
if not f then
+ -- File did probably not exist, let's create it
f, msg = io_open(filename, "w");
if not f then
return nil, msg;
end
end
+
local pos = f:seek("end");
ok, msg = fallocate(f, pos, #data);
if not ok then