%%
  Licensed to the Apache Software Foundation ( ASF ) under one
%% or more contributor license agreements. See the NOTICE file
%% distributed with this work for additional information
%% regarding copyright ownership. The ASF licenses this file
  to you under the Apache License , Version 2.0 ( the
%% "License"); you may not use this file except in compliance
%% with the License. You may obtain a copy of the License at
%%
%%   -2.0
%%
%% Unless required by applicable law or agreed to in writing,
  software distributed under the License is distributed on an
  " AS IS " BASIS , WITHOUT WARRANTIES OR CONDITIONS OF ANY
%% KIND, either express or implied. See the License for the
%% specific language governing permissions and limitations
%% under the License.
%%

-module(thrift_memory_buffer).

-behaviour(thrift_transport).

%% API
-export([new/0, new_transport_factory/0]).

%% thrift_transport callbacks
-export([write/2, read/2, flush/1, close/1]).

-record(memory_buffer, {buffer}).
-type state() :: #memory_buffer{}.
-include("thrift_transport_behaviour.hrl").

new() ->
    State = #memory_buffer{buffer = []},
    thrift_transport:new(?MODULE, State).

new_transport_factory() ->
    {ok, fun() -> new() end}.

%% Writes data into the buffer
write(State = #memory_buffer{buffer = Buf}, Data) ->
    {State#memory_buffer{buffer = [Buf, Data]}, ok}.

flush(State) ->
    {State, ok}.

close(State) ->
    {State, ok}.

read(State = #memory_buffer{buffer = Buf}, Len) when is_integer(Len) ->
    Binary = iolist_to_binary(Buf),
    Give = min(iolist_size(Binary), Len),
    {Result, Remaining} = split_binary(Binary, Give),
    {State#memory_buffer{buffer = Remaining}, {ok, Result}}.

%%--------------------------------------------------------------------
  Internal functions
%%--------------------------------------------------------------------
min(A,B) when A<B -> A;
min(_,B)          -> B.



 or more contributor license agreements. See the NOTICE file
 distributed with this work for additional information
 regarding copyright ownership. The ASF licenses this file
 "License"); you may not use this file except in compliance
 with the License. You may obtain a copy of the License at

   -2.0

 Unless required by applicable law or agreed to in writing,
 KIND, either express or implied. See the License for the
 specific language governing permissions and limitations
 under the License.

 API
 thrift_transport callbacks
 Writes data into the buffer
--------------------------------------------------------------------
--------------------------------------------------------------------
  Licensed to the Apache Software Foundation ( ASF ) under one
  to you under the Apache License , Version 2.0 ( the
  software distributed under the License is distributed on an
  " AS IS " BASIS , WITHOUT WARRANTIES OR CONDITIONS OF ANY

-module(thrift_memory_buffer).

-behaviour(thrift_transport).

-export([new/0, new_transport_factory/0]).

-export([write/2, read/2, flush/1, close/1]).

-record(memory_buffer, {buffer}).
-type state() :: #memory_buffer{}.
-include("thrift_transport_behaviour.hrl").

new() ->
    State = #memory_buffer{buffer = []},
    thrift_transport:new(?MODULE, State).

new_transport_factory() ->
    {ok, fun() -> new() end}.

write(State = #memory_buffer{buffer = Buf}, Data) ->
    {State#memory_buffer{buffer = [Buf, Data]}, ok}.

flush(State) ->
    {State, ok}.

close(State) ->
    {State, ok}.

read(State = #memory_buffer{buffer = Buf}, Len) when is_integer(Len) ->
    Binary = iolist_to_binary(Buf),
    Give = min(iolist_size(Binary), Len),
    {Result, Remaining} = split_binary(Binary, Give),
    {State#memory_buffer{buffer = Remaining}, {ok, Result}}.

  Internal functions
min(A,B) when A<B -> A;
min(_,B)          -> B.

