tagging 1.1.0

git-svn-id: https://svn.apache.org/repos/asf/couchdb/tags/1.1.0@1104149 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 46 insertions, 0 deletions

diff --git a/1.1.x/src/mochiweb/mochiweb_io.erl b/1.1.x/src/mochiweb/mochiweb_io.erl
new file mode 100644
index 00000000..6ce57ec8
--- /dev/null
+++ b/1.1.x/src/mochiweb/mochiweb_io.erl
@@ -0,0 +1,46 @@
+%% @author Bob Ippolito <bob@mochimedia.com>
+%% @copyright 2007 Mochi Media, Inc.
+
+%% @doc Utilities for dealing with IO devices (open files).
+
+-module(mochiweb_io).
+-author('bob@mochimedia.com').
+
+-export([iodevice_stream/3, iodevice_stream/2]).
+-export([iodevice_foldl/4, iodevice_foldl/3]).
+-export([iodevice_size/1]).
+-define(READ_SIZE, 8192).
+
+iodevice_foldl(F, Acc, IoDevice) ->
+    iodevice_foldl(F, Acc, IoDevice, ?READ_SIZE).
+
+iodevice_foldl(F, Acc, IoDevice, BufferSize) ->
+    case file:read(IoDevice, BufferSize) of
+        eof ->
+            Acc;
+        {ok, Data} ->
+            iodevice_foldl(F, F(Data, Acc), IoDevice, BufferSize)
+    end.
+
+iodevice_stream(Callback, IoDevice) ->
+    iodevice_stream(Callback, IoDevice, ?READ_SIZE).
+
+iodevice_stream(Callback, IoDevice, BufferSize) ->
+    F = fun (Data, ok) -> Callback(Data) end,
+    ok = iodevice_foldl(F, ok, IoDevice, BufferSize).
+
+iodevice_size(IoDevice) ->
+    {ok, Size} = file:position(IoDevice, eof),
+    {ok, 0} = file:position(IoDevice, bof),
+    Size.
+
+
+%%
+%% Tests
+%%
+-include_lib("eunit/include/eunit.hrl").
+-ifdef(TEST).
+
+
+
+-endif.