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authorIngela Anderton Andin <[email protected]>2013-09-11 12:04:36 +0200
committerIngela Anderton Andin <[email protected]>2013-09-13 15:14:06 +0200
commit6189bc07f44a0dbb68dbc65689e049decc0d52e7 (patch)
tree6810fc0da143b9b507e868d52947772b32f92316 /lib/inets/src/http_client
parent8ee301f7d4a6e7b3254737e9e18250e266441ac6 (diff)
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inets: httpc improve pipelining
Diffstat (limited to 'lib/inets/src/http_client')
-rw-r--r--lib/inets/src/http_client/httpc_handler.erl44
-rw-r--r--lib/inets/src/http_client/httpc_internal.hrl6
-rw-r--r--lib/inets/src/http_client/httpc_manager.erl48
3 files changed, 46 insertions, 52 deletions
diff --git a/lib/inets/src/http_client/httpc_handler.erl b/lib/inets/src/http_client/httpc_handler.erl
index 55794f57dc..f84f37c746 100644
--- a/lib/inets/src/http_client/httpc_handler.erl
+++ b/lib/inets/src/http_client/httpc_handler.erl
@@ -1165,7 +1165,7 @@ handle_http_body(Body, #state{headers = Headers,
handle_response(#state{status = new} = State) ->
?hcrd("handle response - status = new", []),
- handle_response(try_to_enable_pipeline_or_keep_alive(State));
+ handle_response(check_persistent(State));
handle_response(#state{request = Request,
status = Status,
@@ -1440,39 +1440,22 @@ is_keep_alive_enabled_server(_,_) ->
is_keep_alive_connection(Headers, #session{client_close = ClientClose}) ->
(not ((ClientClose) orelse httpc_response:is_server_closing(Headers))).
-try_to_enable_pipeline_or_keep_alive(
- #state{session = Session,
- request = #request{method = Method},
+check_persistent(
+ #state{session = #session{type = Type} = Session,
status_line = {Version, _, _},
headers = Headers,
- profile_name = ProfileName} = State) ->
- ?hcrd("try to enable pipeline or keep-alive",
- [{version, Version},
- {headers, Headers},
- {session, Session}]),
+ profile_name = ProfileName} = State) ->
case is_keep_alive_enabled_server(Version, Headers) andalso
- is_keep_alive_connection(Headers, Session) of
+ is_keep_alive_connection(Headers, Session) of
true ->
- case (is_pipeline_enabled_client(Session) andalso
- httpc_request:is_idempotent(Method)) of
- true ->
- insert_session(Session, ProfileName),
- State#state{status = pipeline};
- false ->
- insert_session(Session, ProfileName),
- %% Make sure type is keep_alive in session
- %% as it in this case might be pipeline
- NewSession = Session#session{type = keep_alive},
- State#state{status = keep_alive,
- session = NewSession}
- end;
+ mark_persistent(ProfileName, Session),
+ State#state{status = Type};
false ->
State#state{status = close}
end.
answer_request(#request{id = RequestId, from = From} = Request, Msg,
- #state{session = Session,
- timers = Timers,
+ #state{timers = Timers,
profile_name = ProfileName} = State) ->
?hcrt("answer request", [{request, Request}, {msg, Msg}]),
httpc_response:send(From, Msg),
@@ -1482,19 +1465,14 @@ answer_request(#request{id = RequestId, from = From} = Request, Msg,
Timer = {RequestId, TimerRef},
cancel_timer(TimerRef, {timeout, Request#request.id}),
httpc_manager:request_done(RequestId, ProfileName),
- NewSession = maybe_make_session_available(ProfileName, Session),
Timers2 = Timers#timers{request_timers = lists:delete(Timer,
RequestTimers)},
State#state{request = Request#request{from = answer_sent},
- session = NewSession,
timers = Timers2}.
-maybe_make_session_available(ProfileName,
- #session{available = false} = Session) ->
- update_session(ProfileName, Session, #session.available, true),
- Session#session{available = true};
-maybe_make_session_available(_ProfileName, Session) ->
- Session.
+mark_persistent(ProfileName, Session) ->
+ update_session(ProfileName, Session, #session.persistent, true),
+ Session#session{persistent = true}.
cancel_timers(#timers{request_timers = ReqTmrs, queue_timer = QTmr}) ->
cancel_timer(QTmr, timeout_queue),
diff --git a/lib/inets/src/http_client/httpc_internal.hrl b/lib/inets/src/http_client/httpc_internal.hrl
index 30e2742e9d..d5b3dd2a2a 100644
--- a/lib/inets/src/http_client/httpc_internal.hrl
+++ b/lib/inets/src/http_client/httpc_internal.hrl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2005-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2005-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -143,8 +143,8 @@
%% true | false
%% This will be true, when a response has been received for
- %% the first request. See type above.
- available = false
+ %% the first request and the server has not closed the connection
+ persistent = false
}).
diff --git a/lib/inets/src/http_client/httpc_manager.erl b/lib/inets/src/http_client/httpc_manager.erl
index c45dcab802..3cd225abb3 100644
--- a/lib/inets/src/http_client/httpc_manager.erl
+++ b/lib/inets/src/http_client/httpc_manager.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2002-2012. All Rights Reserved.
+%% Copyright Ericsson AB 2002-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -467,7 +467,7 @@ do_init(ProfileName, CookiesDir) ->
%%--------------------------------------------------------------------
handle_call({request, Request}, _, State) ->
?hcri("request", [{request, Request}]),
- case (catch handle_request(Request, State)) of
+ case (catch handle_request(Request, State, false)) of
{reply, Msg, NewState} ->
{reply, Msg, NewState};
Error ->
@@ -547,7 +547,7 @@ handle_cast({retry_or_redirect_request, {Time, Request}},
{noreply, State};
handle_cast({retry_or_redirect_request, Request}, State) ->
- case (catch handle_request(Request, State)) of
+ case (catch handle_request(Request, State, true)) of
{reply, {ok, _}, NewState} ->
{noreply, NewState};
Error ->
@@ -774,7 +774,7 @@ get_handler_info(Tab) ->
handle_request(#request{settings =
#http_options{version = "HTTP/0.9"}} = Request,
- State) ->
+ State, _) ->
%% Act as an HTTP/0.9 client that does not know anything
%% about persistent connections
@@ -787,7 +787,7 @@ handle_request(#request{settings =
handle_request(#request{settings =
#http_options{version = "HTTP/1.0"}} = Request,
- State) ->
+ State, _) ->
%% Act as an HTTP/1.0 client that does not
%% use persistent connections
@@ -798,13 +798,13 @@ handle_request(#request{settings =
start_handler(NewRequest#request{headers = NewHeaders}, State),
{reply, {ok, NewRequest#request.id}, State};
-handle_request(Request, State = #state{options = Options}) ->
+handle_request(Request, State = #state{options = Options}, Retry) ->
NewRequest = handle_cookies(generate_request_id(Request), State),
SessionType = session_type(Options),
case select_session(Request#request.method,
Request#request.address,
- Request#request.scheme, SessionType, State) of
+ Request#request.scheme, SessionType, State, Retry) of
{ok, HandlerPid} ->
pipeline_or_keep_alive(NewRequest, HandlerPid, State);
no_connection ->
@@ -828,6 +828,7 @@ start_handler(#request{id = Id,
#state{profile_name = ProfileName,
handler_db = HandlerDb,
options = Options}) ->
+ ClientClose = httpc_request:is_client_closing(Request#request.headers),
{ok, Pid} =
case is_inets_manager() of
true ->
@@ -838,13 +839,18 @@ start_handler(#request{id = Id,
end,
HandlerInfo = {Id, Pid, From},
ets:insert(HandlerDb, HandlerInfo),
+ insert_session(#session{id = {Request#request.address, Pid},
+ scheme = Request#request.scheme,
+ client_close = ClientClose,
+ type = session_type(Options)
+ }, ProfileName),
erlang:monitor(process, Pid).
select_session(Method, HostPort, Scheme, SessionType,
#state{options = #options{max_pipeline_length = MaxPipe,
max_keep_alive_length = MaxKeepAlive},
- session_db = SessionDb}) ->
+ session_db = SessionDb}, Retry) ->
?hcrd("select session", [{session_type, SessionType},
{max_pipeline_length, MaxPipe},
{max_keep_alive_length, MaxKeepAlive}]),
@@ -857,19 +863,29 @@ select_session(Method, HostPort, Scheme, SessionType,
%% client_close, scheme and type specified.
%% The fields id (part of: HandlerPid) and queue_length
%% specified.
- Pattern = #session{id = {HostPort, '$1'},
- client_close = false,
- scheme = Scheme,
- queue_length = '$2',
- type = SessionType,
- available = true,
- _ = '_'},
+ Pattern = case (Retry andalso SessionType == pipeline) of
+ true ->
+ #session{id = {HostPort, '$1'},
+ client_close = false,
+ scheme = Scheme,
+ queue_length = '$2',
+ type = SessionType,
+ persistent = true,
+ _ = '_'};
+ false ->
+ #session{id = {HostPort, '$1'},
+ client_close = false,
+ scheme = Scheme,
+ queue_length = '$2',
+ type = SessionType,
+ _ = '_'}
+ end,
%% {'_', {HostPort, '$1'}, false, Scheme, '_', '$2', SessionTyp},
Candidates = ets:match(SessionDb, Pattern),
?hcrd("select session", [{host_port, HostPort},
{scheme, Scheme},
{type, SessionType},
- {candidates, Candidates}]),
+ {candidates, Candidates}]),
select_session(Candidates, MaxKeepAlive, MaxPipe, SessionType);
false ->
no_connection