| %% |
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| %% 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 |
| %% |
| %% http://www.apache.org/licenses/LICENSE-2.0 |
| %% |
| %% Unless required by applicable law or agreed to in writing, |
| %% software distributed under the License is distributed on an |
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| %% under the License. |
| %% |
| |
| -module(thrift_membuffer_transport). |
| |
| -behaviour(thrift_transport). |
| |
| %% constructors |
| -export([new/0, new/1]). |
| %% protocol callbacks |
| -export([read/2, read_exact/2, write/2, flush/1, close/1]). |
| |
| |
| -record(t_membuffer, { |
| buffer = [] |
| }). |
| |
| -type state() :: #t_membuffer{}. |
| |
| |
| -spec new() -> thrift_transport:t_transport(). |
| |
| new() -> new([]). |
| |
| -spec new(Buf::iodata()) -> thrift_transport:t_transport(). |
| |
| new(Buf) when is_list(Buf) -> |
| State = #t_membuffer{buffer = Buf}, |
| thrift_transport:new(?MODULE, State); |
| new(Buf) when is_binary(Buf) -> |
| State = #t_membuffer{buffer = [Buf]}, |
| thrift_transport:new(?MODULE, State). |
| |
| |
| -include("thrift_transport_behaviour.hrl"). |
| |
| |
| read(State = #t_membuffer{buffer = Buf}, Len) |
| when is_integer(Len), Len >= 0 -> |
| Binary = iolist_to_binary(Buf), |
| Give = min(iolist_size(Binary), Len), |
| {Result, Remaining} = split_binary(Binary, Give), |
| {State#t_membuffer{buffer = Remaining}, {ok, Result}}. |
| |
| |
| read_exact(State = #t_membuffer{buffer = Buf}, Len) |
| when is_integer(Len), Len >= 0 -> |
| Binary = iolist_to_binary(Buf), |
| case iolist_size(Binary) of |
| X when X >= Len -> |
| {Result, Remaining} = split_binary(Binary, Len), |
| {State#t_membuffer{buffer = Remaining}, {ok, Result}}; |
| _ -> |
| {State, {error, eof}} |
| end. |
| |
| |
| write(State = #t_membuffer{buffer = Buf}, Data) |
| when is_list(Data); is_binary(Data) -> |
| {State#t_membuffer{buffer = [Buf, Data]}, ok}. |
| |
| |
| flush(State) -> {State, ok}. |
| |
| |
| close(State) -> {State, ok}. |
| |