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Posted to commits@couchdb.apache.org by da...@apache.org on 2014/02/05 15:50:54 UTC
[32/49] couchdb commit: updated refs/heads/1843-feature-bigcouch to
3069c01
Remove src/ibrowse
Project: http://git-wip-us.apache.org/repos/asf/couchdb/repo
Commit: http://git-wip-us.apache.org/repos/asf/couchdb/commit/3822d8f4
Tree: http://git-wip-us.apache.org/repos/asf/couchdb/tree/3822d8f4
Diff: http://git-wip-us.apache.org/repos/asf/couchdb/diff/3822d8f4
Branch: refs/heads/1843-feature-bigcouch
Commit: 3822d8f4923cbf9c026a933f15759c2857cc20a0
Parents: 753e746
Author: Paul J. Davis <pa...@gmail.com>
Authored: Tue Feb 4 17:41:31 2014 -0600
Committer: Paul J. Davis <pa...@gmail.com>
Committed: Tue Feb 4 17:41:31 2014 -0600
----------------------------------------------------------------------
src/ibrowse/include/ibrowse.hrl | 21 -
src/ibrowse/src/ibrowse.app.src | 7 -
src/ibrowse/src/ibrowse.erl | 929 -------------
src/ibrowse/src/ibrowse_app.erl | 63 -
src/ibrowse/src/ibrowse_http_client.erl | 1921 --------------------------
src/ibrowse/src/ibrowse_lb.erl | 252 ----
src/ibrowse/src/ibrowse_lib.erl | 441 ------
src/ibrowse/src/ibrowse_sup.erl | 63 -
src/ibrowse/src/ibrowse_test.erl | 625 ---------
9 files changed, 4322 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/couchdb/blob/3822d8f4/src/ibrowse/include/ibrowse.hrl
----------------------------------------------------------------------
diff --git a/src/ibrowse/include/ibrowse.hrl b/src/ibrowse/include/ibrowse.hrl
deleted file mode 100644
index 18dde82..0000000
--- a/src/ibrowse/include/ibrowse.hrl
+++ /dev/null
@@ -1,21 +0,0 @@
--ifndef(IBROWSE_HRL).
--define(IBROWSE_HRL, "ibrowse.hrl").
-
--record(url, {
- abspath,
- host,
- port,
- username,
- password,
- path,
- protocol,
- host_type % 'hostname', 'ipv4_address' or 'ipv6_address'
-}).
-
--record(lb_pid, {host_port, pid}).
-
--record(client_conn, {key, cur_pipeline_size = 0, reqs_served = 0}).
-
--record(ibrowse_conf, {key, value}).
-
--endif.
http://git-wip-us.apache.org/repos/asf/couchdb/blob/3822d8f4/src/ibrowse/src/ibrowse.app.src
----------------------------------------------------------------------
diff --git a/src/ibrowse/src/ibrowse.app.src b/src/ibrowse/src/ibrowse.app.src
deleted file mode 100644
index f65ba44..0000000
--- a/src/ibrowse/src/ibrowse.app.src
+++ /dev/null
@@ -1,7 +0,0 @@
-{application, ibrowse,
- [{description, "Erlang HTTP client application"},
- {vsn, git},
- {registered, [ibrowse_sup, ibrowse]},
- {applications, [kernel,stdlib]},
- {env, []},
- {mod, {ibrowse_app, []}}]}.
http://git-wip-us.apache.org/repos/asf/couchdb/blob/3822d8f4/src/ibrowse/src/ibrowse.erl
----------------------------------------------------------------------
diff --git a/src/ibrowse/src/ibrowse.erl b/src/ibrowse/src/ibrowse.erl
deleted file mode 100644
index b2a7919..0000000
--- a/src/ibrowse/src/ibrowse.erl
+++ /dev/null
@@ -1,929 +0,0 @@
-%%%-------------------------------------------------------------------
-%%% File : ibrowse.erl
-%%% Author : Chandrashekhar Mullaparthi <ch...@t-mobile.co.uk>
-%%% Description : Load balancer process for HTTP client connections.
-%%%
-%%% Created : 11 Oct 2003 by Chandrashekhar Mullaparthi <ch...@t-mobile.co.uk>
-%%%-------------------------------------------------------------------
-%% @author Chandrashekhar Mullaparthi <chandrashekhar dot mullaparthi at gmail dot com>
-%% @copyright 2005-2012 Chandrashekhar Mullaparthi
-%% @doc The ibrowse application implements an HTTP 1.1 client in erlang. This
-%% module implements the API of the HTTP client. There is one named
-%% process called 'ibrowse' which assists in load balancing and maintaining configuration. There is one load balancing process per unique webserver. There is
-%% one process to handle one TCP connection to a webserver
-%% (implemented in the module ibrowse_http_client). Multiple connections to a
-%% webserver are setup based on the settings for each webserver. The
-%% ibrowse process also determines which connection to pipeline a
-%% certain request on. The functions to call are send_req/3,
-%% send_req/4, send_req/5, send_req/6.
-%%
-%% <p>Here are a few sample invocations.</p>
-%%
-%% <code>
-%% ibrowse:send_req("http://intranet/messenger/", [], get).
-%% <br/><br/>
-%%
-%% ibrowse:send_req("http://www.google.com/", [], get, [],
-%% [{proxy_user, "XXXXX"},
-%% {proxy_password, "XXXXX"},
-%% {proxy_host, "proxy"},
-%% {proxy_port, 8080}], 1000).
-%% <br/><br/>
-%%
-%%ibrowse:send_req("http://www.erlang.org/download/otp_src_R10B-3.tar.gz", [], get, [],
-%% [{proxy_user, "XXXXX"},
-%% {proxy_password, "XXXXX"},
-%% {proxy_host, "proxy"},
-%% {proxy_port, 8080},
-%% {save_response_to_file, true}], 1000).
-%% <br/><br/>
-%%
-%% ibrowse:send_req("http://www.erlang.org", [], head).
-%%
-%% <br/><br/>
-%% ibrowse:send_req("http://www.sun.com", [], options).
-%%
-%% <br/><br/>
-%% ibrowse:send_req("http://www.bbc.co.uk", [], trace).
-%%
-%% <br/><br/>
-%% ibrowse:send_req("http://www.google.com", [], get, [],
-%% [{stream_to, self()}]).
-%% </code>
-%%
-
--module(ibrowse).
--behaviour(gen_server).
-%%--------------------------------------------------------------------
-%% Include files
-%%--------------------------------------------------------------------
-
-%%--------------------------------------------------------------------
-%% External exports
--export([start_link/0, start/0, stop/0]).
-
-%% gen_server callbacks
--export([init/1, handle_call/3, handle_cast/2, handle_info/2,
- terminate/2, code_change/3]).
-
-%% API interface
--export([
- rescan_config/0,
- rescan_config/1,
- add_config/1,
- get_config_value/1,
- get_config_value/2,
- spawn_worker_process/1,
- spawn_worker_process/2,
- spawn_link_worker_process/1,
- spawn_link_worker_process/2,
- stop_worker_process/1,
- send_req/3,
- send_req/4,
- send_req/5,
- send_req/6,
- send_req_direct/4,
- send_req_direct/5,
- send_req_direct/6,
- send_req_direct/7,
- stream_next/1,
- stream_close/1,
- set_max_sessions/3,
- set_max_pipeline_size/3,
- set_dest/3,
- trace_on/0,
- trace_off/0,
- trace_on/2,
- trace_off/2,
- all_trace_off/0,
- show_dest_status/0,
- show_dest_status/1,
- show_dest_status/2,
- get_metrics/0,
- get_metrics/2
- ]).
-
--ifdef(debug).
--compile(export_all).
--endif.
-
--import(ibrowse_lib, [
- parse_url/1,
- get_value/3,
- do_trace/2
- ]).
-
--record(state, {trace = false}).
-
--include_lib("ibrowse/include/ibrowse.hrl").
--include_lib("stdlib/include/ms_transform.hrl").
-
--define(DEF_MAX_SESSIONS,10).
--define(DEF_MAX_PIPELINE_SIZE,10).
-
-%%====================================================================
-%% External functions
-%%====================================================================
-%%--------------------------------------------------------------------
-%% Function: start_link/0
-%% Description: Starts the server
-%%--------------------------------------------------------------------
-%% @doc Starts the ibrowse process linked to the calling process. Usually invoked by the supervisor ibrowse_sup
-%% @spec start_link() -> {ok, pid()}
-start_link() ->
- gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
-
-%% @doc Starts the ibrowse process without linking. Useful when testing using the shell
-start() ->
- gen_server:start({local, ?MODULE}, ?MODULE, [], [{debug, []}]).
-
-%% @doc Stop the ibrowse process. Useful when testing using the shell.
-stop() ->
- case catch gen_server:call(ibrowse, stop) of
- {'EXIT',{noproc,_}} ->
- ok;
- Res ->
- Res
- end.
-
-%% @doc This is the basic function to send a HTTP request.
-%% The Status return value indicates the HTTP status code returned by the webserver
-%% @spec send_req(Url::string(), Headers::headerList(), Method::method()) -> response()
-%% headerList() = [{header(), value()}]
-%% header() = atom() | string()
-%% value() = term()
-%% method() = get | post | head | options | put | delete | trace | mkcol | propfind | proppatch | lock | unlock | move | copy
-%% Status = string()
-%% ResponseHeaders = [respHeader()]
-%% respHeader() = {headerName(), headerValue()}
-%% headerName() = string()
-%% headerValue() = string()
-%% response() = {ok, Status, ResponseHeaders, ResponseBody} | {ibrowse_req_id, req_id() } | {error, Reason}
-%% req_id() = term()
-%% ResponseBody = string() | {file, Filename}
-%% Reason = term()
-send_req(Url, Headers, Method) ->
- send_req(Url, Headers, Method, [], []).
-
-%% @doc Same as send_req/3.
-%% If a list is specified for the body it has to be a flat list. The body can also be a fun/0 or a fun/1. <br/>
-%% If fun/0, the connection handling process will repeatdely call the fun until it returns an error or eof. <pre>Fun() = {ok, Data} | eof</pre><br/>
-%% If fun/1, the connection handling process will repeatedly call the fun with the supplied state until it returns an error or eof. <pre>Fun(State) = {ok, Data} | {ok, Data, NewState} | eof</pre>
-%% @spec send_req(Url, Headers, Method::method(), Body::body()) -> response()
-%% body() = [] | string() | binary() | fun_arity_0() | {fun_arity_1(), initial_state()}
-%% initial_state() = term()
-send_req(Url, Headers, Method, Body) ->
- send_req(Url, Headers, Method, Body, []).
-
-%% @doc Same as send_req/4.
-%% For a description of SSL Options, look in the <a href="http://www.erlang.org/doc/apps/ssl/index.html">ssl</a> manpage. If the
-%% HTTP Version to use is not specified, the default is 1.1.
-%% <br/>
-%% <ul>
-%% <li>The <code>host_header</code> option is useful in the case where ibrowse is
-%% connecting to a component such as <a
-%% href="http://www.stunnel.org">stunnel</a> which then sets up a
-%% secure connection to a webserver. In this case, the URL supplied to
-%% ibrowse must have the stunnel host/port details, but that won't
-%% make sense to the destination webserver. This option can then be
-%% used to specify what should go in the <code>Host</code> header in
-%% the request.</li>
-%% <li>The <code>stream_to</code> option can be used to have the HTTP
-%% response streamed to a process as messages as data arrives on the
-%% socket. If the calling process wishes to control the rate at which
-%% data is received from the server, the option <code>{stream_to,
-%% {process(), once}}</code> can be specified. The calling process
-%% will have to invoke <code>ibrowse:stream_next(Request_id)</code> to
-%% receive the next packet.</li>
-%%
-%% <li>When both the options <code>save_response_to_file</code> and <code>stream_to</code>
-%% are specified, the former takes precedence.</li>
-%%
-%% <li>For the <code>save_response_to_file</code> option, the response body is saved to
-%% file only if the status code is in the 200-299 range. If not, the response body is returned
-%% as a string.</li>
-%% <li>Whenever an error occurs in the processing of a request, ibrowse will return as much
-%% information as it has, such as HTTP Status Code and HTTP Headers. When this happens, the response
-%% is of the form <code>{error, {Reason, {stat_code, StatusCode}, HTTP_headers}}</code></li>
-%%
-%% <li>The <code>inactivity_timeout</code> option is useful when
-%% dealing with large response bodies and/or slow links. In these
-%% cases, it might be hard to estimate how long a request will take to
-%% complete. In such cases, the client might want to timeout if no
-%% data has been received on the link for a certain time interval.
-%%
-%% This value is also used to close connections which are not in use for
-%% the specified timeout value.
-%% </li>
-%%
-%% <li>
-%% The <code>connect_timeout</code> option is to specify how long the
-%% client process should wait for connection establishment. This is
-%% useful in scenarios where connections to servers are usually setup
-%% very fast, but responses might take much longer compared to
-%% connection setup. In such cases, it is better for the calling
-%% process to timeout faster if there is a problem (DNS lookup
-%% delays/failures, network routing issues, etc). The total timeout
-%% value specified for the request will enforced. To illustrate using
-%% an example:
-%% <code>
-%% ibrowse:send_req("http://www.example.com/cgi-bin/request", [], get, [], [{connect_timeout, 100}], 1000).
-%% </code>
-%% In the above invocation, if the connection isn't established within
-%% 100 milliseconds, the request will fail with
-%% <code>{error, conn_failed}</code>.<br/>
-%% If connection setup succeeds, the total time allowed for the
-%% request to complete will be 1000 milliseconds minus the time taken
-%% for connection setup.
-%% </li>
-%%
-%% <li> The <code>socket_options</code> option can be used to set
-%% specific options on the socket. The <code>{active, true | false | once}</code>
-%% and <code>{packet_type, Packet_type}</code> will be filtered out by ibrowse. </li>
-%%
-%% <li> The <code>headers_as_is</code> option is to enable the caller
-%% to send headers exactly as specified in the request without ibrowse
-%% adding some of its own. Required for some picky servers apparently. </li>
-%%
-%% <li>The <code>give_raw_headers</code> option is to enable the
-%% caller to get access to the raw status line and raw unparsed
-%% headers. Not quite sure why someone would want this, but one of my
-%% users asked for it, so here it is. </li>
-%%
-%% <li> The <code>preserve_chunked_encoding</code> option enables the caller
-%% to receive the raw data stream when the Transfer-Encoding of the server
-%% response is Chunked.
-%% </li>
-%% </ul>
-%%
-%% @spec send_req(Url::string(), Headers::headerList(), Method::method(), Body::body(), Options::optionList()) -> response()
-%% optionList() = [option()]
-%% option() = {max_sessions, integer()} |
-%% {response_format,response_format()}|
-%% {stream_chunk_size, integer()} |
-%% {max_pipeline_size, integer()} |
-%% {trace, boolean()} |
-%% {is_ssl, boolean()} |
-%% {ssl_options, [SSLOpt]} |
-%% {pool_name, atom()} |
-%% {proxy_host, string()} |
-%% {proxy_port, integer()} |
-%% {proxy_user, string()} |
-%% {proxy_password, string()} |
-%% {use_absolute_uri, boolean()} |
-%% {basic_auth, {username(), password()}} |
-%% {cookie, string()} |
-%% {content_length, integer()} |
-%% {content_type, string()} |
-%% {save_response_to_file, srtf()} |
-%% {stream_to, stream_to()} |
-%% {http_vsn, {MajorVsn, MinorVsn}} |
-%% {host_header, string()} |
-%% {inactivity_timeout, integer()} |
-%% {connect_timeout, integer()} |
-%% {socket_options, Sock_opts} |
-%% {transfer_encoding, {chunked, ChunkSize}} |
-%% {headers_as_is, boolean()} |
-%% {give_raw_headers, boolean()} |
-%% {preserve_chunked_encoding,boolean()} |
-%% {workaround, head_response_with_body}
-%%
-%% stream_to() = process() | {process(), once}
-%% process() = pid() | atom()
-%% username() = string()
-%% password() = string()
-%% SSLOpt = term()
-%% Sock_opts = [Sock_opt]
-%% Sock_opt = term()
-%% ChunkSize = integer()
-%% srtf() = boolean() | filename() | {append, filename()}
-%% filename() = string()
-%% response_format() = list | binary
-send_req(Url, Headers, Method, Body, Options) ->
- send_req(Url, Headers, Method, Body, Options, 30000).
-
-%% @doc Same as send_req/5.
-%% All timeout values are in milliseconds.
-%% @spec send_req(Url, Headers::headerList(), Method::method(), Body::body(), Options::optionList(), Timeout) -> response()
-%% Timeout = integer() | infinity
-send_req(Url, Headers, Method, Body, Options, Timeout) ->
- case catch parse_url(Url) of
- #url{host = Host,
- port = Port,
- protocol = Protocol} = Parsed_url ->
- Lb_pid = case ets:lookup(ibrowse_lb, {Host, Port}) of
- [] ->
- get_lb_pid(Parsed_url);
- [#lb_pid{pid = Lb_pid_1}] ->
- Lb_pid_1
- end,
- Max_sessions = get_max_sessions(Host, Port, Options),
- Max_pipeline_size = get_max_pipeline_size(Host, Port, Options),
- Options_1 = merge_options(Host, Port, Options),
- {SSLOptions, IsSSL} =
- case (Protocol == https) orelse
- get_value(is_ssl, Options_1, false) of
- false -> {[], false};
- true -> {get_value(ssl_options, Options_1, []), true}
- end,
- try_routing_request(Lb_pid, Parsed_url,
- Max_sessions,
- Max_pipeline_size,
- {SSLOptions, IsSSL},
- Headers, Method, Body, Options_1, Timeout, 0);
- Err ->
- {error, {url_parsing_failed, Err}}
- end.
-
-try_routing_request(Lb_pid, Parsed_url,
- Max_sessions,
- Max_pipeline_size,
- {SSLOptions, IsSSL},
- Headers, Method, Body, Options_1, Timeout, Try_count) when Try_count < 3 ->
- case ibrowse_lb:spawn_connection(Lb_pid, Parsed_url,
- Max_sessions,
- Max_pipeline_size,
- {SSLOptions, IsSSL}) of
- {ok, Conn_Pid} ->
- case do_send_req(Conn_Pid, Parsed_url, Headers,
- Method, Body, Options_1, Timeout) of
- {error, sel_conn_closed} ->
- try_routing_request(Lb_pid, Parsed_url,
- Max_sessions,
- Max_pipeline_size,
- {SSLOptions, IsSSL},
- Headers, Method, Body, Options_1, Timeout, Try_count + 1);
- Res ->
- Res
- end;
- Err ->
- Err
- end;
-try_routing_request(_, _, _, _, _, _, _, _, _, _, _) ->
- {error, retry_later}.
-
-merge_options(Host, Port, Options) ->
- Config_options = get_config_value({options, Host, Port}, []) ++
- get_config_value({options, global}, []),
- lists:foldl(
- fun({Key, Val}, Acc) ->
- case lists:keysearch(Key, 1, Options) of
- false ->
- [{Key, Val} | Acc];
- _ ->
- Acc
- end
- end, Options, Config_options).
-
-get_lb_pid(Url) ->
- gen_server:call(?MODULE, {get_lb_pid, Url}).
-
-get_max_sessions(Host, Port, Options) ->
- get_value(max_sessions, Options,
- get_config_value({max_sessions, Host, Port},
- default_max_sessions())).
-
-get_max_pipeline_size(Host, Port, Options) ->
- get_value(max_pipeline_size, Options,
- get_config_value({max_pipeline_size, Host, Port},
- default_max_pipeline_size())).
-
-default_max_sessions() ->
- safe_get_env(ibrowse, default_max_sessions, ?DEF_MAX_SESSIONS).
-
-default_max_pipeline_size() ->
- safe_get_env(ibrowse, default_max_pipeline_size, ?DEF_MAX_PIPELINE_SIZE).
-
-safe_get_env(App, Key, Def_val) ->
- case application:get_env(App, Key) of
- undefined ->
- Def_val;
- {ok, Val} ->
- Val
- end.
-
-%% @doc Deprecated. Use set_max_sessions/3 and set_max_pipeline_size/3
-%% for achieving the same effect.
-set_dest(Host, Port, [{max_sessions, Max} | T]) ->
- set_max_sessions(Host, Port, Max),
- set_dest(Host, Port, T);
-set_dest(Host, Port, [{max_pipeline_size, Max} | T]) ->
- set_max_pipeline_size(Host, Port, Max),
- set_dest(Host, Port, T);
-set_dest(Host, Port, [{trace, Bool} | T]) when Bool == true; Bool == false ->
- ibrowse ! {trace, true, Host, Port},
- set_dest(Host, Port, T);
-set_dest(_Host, _Port, [H | _]) ->
- exit({invalid_option, H});
-set_dest(_, _, []) ->
- ok.
-
-%% @doc Set the maximum number of connections allowed to a specific Host:Port.
-%% @spec set_max_sessions(Host::string(), Port::integer(), Max::integer()) -> ok
-set_max_sessions(Host, Port, Max) when is_integer(Max), Max > 0 ->
- gen_server:call(?MODULE, {set_config_value, {max_sessions, Host, Port}, Max}).
-
-%% @doc Set the maximum pipeline size for each connection to a specific Host:Port.
-%% @spec set_max_pipeline_size(Host::string(), Port::integer(), Max::integer()) -> ok
-set_max_pipeline_size(Host, Port, Max) when is_integer(Max), Max > 0 ->
- gen_server:call(?MODULE, {set_config_value, {max_pipeline_size, Host, Port}, Max}).
-
-do_send_req(Conn_Pid, Parsed_url, Headers, Method, Body, Options, Timeout) ->
- case catch ibrowse_http_client:send_req(Conn_Pid, Parsed_url,
- Headers, Method, ensure_bin(Body),
- Options, Timeout) of
- {'EXIT', {timeout, _}} ->
- {error, req_timedout};
- {'EXIT', {noproc, {gen_server, call, [Conn_Pid, _, _]}}} ->
- {error, sel_conn_closed};
- {'EXIT', {normal, _}} ->
- {error, req_timedout};
- {error, connection_closed} ->
- {error, sel_conn_closed};
- {'EXIT', Reason} ->
- {error, {'EXIT', Reason}};
- {ok, St_code, Headers, Body} = Ret when is_binary(Body) ->
- case get_value(response_format, Options, list) of
- list ->
- {ok, St_code, Headers, binary_to_list(Body)};
- binary ->
- Ret
- end;
- Ret ->
- Ret
- end.
-
-ensure_bin(L) when is_list(L) -> list_to_binary(L);
-ensure_bin(B) when is_binary(B) -> B;
-ensure_bin(Fun) when is_function(Fun) -> Fun;
-ensure_bin({Fun}) when is_function(Fun) -> Fun;
-ensure_bin({Fun, _} = Body) when is_function(Fun) -> Body.
-
-%% @doc Creates a HTTP client process to the specified Host:Port which
-%% is not part of the load balancing pool. This is useful in cases
-%% where some requests to a webserver might take a long time whereas
-%% some might take a very short time. To avoid getting these quick
-%% requests stuck in the pipeline behind time consuming requests, use
-%% this function to get a handle to a connection process. <br/>
-%% <b>Note:</b> Calling this function only creates a worker process. No connection
-%% is setup. The connection attempt is made only when the first
-%% request is sent via any of the send_req_direct/4,5,6,7 functions.<br/>
-%% <b>Note:</b> It is the responsibility of the calling process to control
-%% pipeline size on such connections.
-%%
-%% @spec spawn_worker_process(Url::string()) -> {ok, pid()}
-spawn_worker_process(Url) ->
- ibrowse_http_client:start(Url).
-
-%% @doc Same as spawn_worker_process/1 but takes as input a Host and Port
-%% instead of a URL.
-%% @spec spawn_worker_process(Host::string(), Port::integer()) -> {ok, pid()}
-spawn_worker_process(Host, Port) ->
- ibrowse_http_client:start({Host, Port}).
-
-%% @doc Same as spawn_worker_process/1 except the the calling process
-%% is linked to the worker process which is spawned.
-%% @spec spawn_link_worker_process(Url::string()) -> {ok, pid()}
-spawn_link_worker_process(Url) ->
- ibrowse_http_client:start_link(Url).
-
-%% @doc Same as spawn_worker_process/2 except the the calling process
-%% is linked to the worker process which is spawned.
-%% @spec spawn_link_worker_process(Host::string(), Port::integer()) -> {ok, pid()}
-spawn_link_worker_process(Host, Port) ->
- ibrowse_http_client:start_link({Host, Port}).
-
-%% @doc Terminate a worker process spawned using
-%% spawn_worker_process/2 or spawn_link_worker_process/2. Requests in
-%% progress will get the error response <pre>{error, closing_on_request}</pre>
-%% @spec stop_worker_process(Conn_pid::pid()) -> ok
-stop_worker_process(Conn_pid) ->
- ibrowse_http_client:stop(Conn_pid).
-
-%% @doc Same as send_req/3 except that the first argument is the PID
-%% returned by spawn_worker_process/2 or spawn_link_worker_process/2
-send_req_direct(Conn_pid, Url, Headers, Method) ->
- send_req_direct(Conn_pid, Url, Headers, Method, [], []).
-
-%% @doc Same as send_req/4 except that the first argument is the PID
-%% returned by spawn_worker_process/2 or spawn_link_worker_process/2
-send_req_direct(Conn_pid, Url, Headers, Method, Body) ->
- send_req_direct(Conn_pid, Url, Headers, Method, Body, []).
-
-%% @doc Same as send_req/5 except that the first argument is the PID
-%% returned by spawn_worker_process/2 or spawn_link_worker_process/2
-send_req_direct(Conn_pid, Url, Headers, Method, Body, Options) ->
- send_req_direct(Conn_pid, Url, Headers, Method, Body, Options, 30000).
-
-%% @doc Same as send_req/6 except that the first argument is the PID
-%% returned by spawn_worker_process/2 or spawn_link_worker_process/2
-send_req_direct(Conn_pid, Url, Headers, Method, Body, Options, Timeout) ->
- case catch parse_url(Url) of
- #url{host = Host,
- port = Port} = Parsed_url ->
- Options_1 = merge_options(Host, Port, Options),
- case do_send_req(Conn_pid, Parsed_url, Headers, Method, Body, Options_1, Timeout) of
- {error, {'EXIT', {noproc, _}}} ->
- {error, worker_is_dead};
- Ret ->
- Ret
- end;
- Err ->
- {error, {url_parsing_failed, Err}}
- end.
-
-%% @doc Tell ibrowse to stream the next chunk of data to the
-%% caller. Should be used in conjunction with the
-%% <code>stream_to</code> option
-%% @spec stream_next(Req_id :: req_id()) -> ok | {error, unknown_req_id}
-stream_next(Req_id) ->
- case ets:lookup(ibrowse_stream, {req_id_pid, Req_id}) of
- [] ->
- {error, unknown_req_id};
- [{_, Pid}] ->
- catch Pid ! {stream_next, Req_id},
- ok
- end.
-
-%% @doc Tell ibrowse to close the connection associated with the
-%% specified stream. Should be used in conjunction with the
-%% <code>stream_to</code> option. Note that all requests in progress on
-%% the connection which is serving this Req_id will be aborted, and an
-%% error returned.
-%% @spec stream_close(Req_id :: req_id()) -> ok | {error, unknown_req_id}
-stream_close(Req_id) ->
- case ets:lookup(ibrowse_stream, {req_id_pid, Req_id}) of
- [] ->
- {error, unknown_req_id};
- [{_, Pid}] ->
- catch Pid ! {stream_close, Req_id},
- ok
- end.
-
-%% @doc Turn tracing on for the ibrowse process
-trace_on() ->
- ibrowse ! {trace, true}.
-%% @doc Turn tracing off for the ibrowse process
-trace_off() ->
- ibrowse ! {trace, false}.
-
-%% @doc Turn tracing on for all connections to the specified HTTP
-%% server. Host is whatever is specified as the domain name in the URL
-%% @spec trace_on(Host, Port) -> ok
-%% Host = string()
-%% Port = integer()
-trace_on(Host, Port) ->
- ibrowse ! {trace, true, Host, Port},
- ok.
-
-%% @doc Turn tracing OFF for all connections to the specified HTTP
-%% server.
-%% @spec trace_off(Host, Port) -> ok
-trace_off(Host, Port) ->
- ibrowse ! {trace, false, Host, Port},
- ok.
-
-%% @doc Turn Off ALL tracing
-%% @spec all_trace_off() -> ok
-all_trace_off() ->
- ibrowse ! all_trace_off,
- ok.
-
-%% @doc Shows some internal information about load balancing. Info
-%% about workers spawned using spawn_worker_process/2 or
-%% spawn_link_worker_process/2 is not included.
-show_dest_status() ->
- io:format("~-40.40s | ~-5.5s | ~-10.10s | ~s~n",
- ["Server:port", "ETS", "Num conns", "LB Pid"]),
- io:format("~80.80.=s~n", [""]),
- Metrics = get_metrics(),
- lists:foreach(
- fun({Host, Port, Lb_pid, Tid, Size}) ->
- io:format("~40.40s | ~-5.5s | ~-5.5s | ~p~n",
- [Host ++ ":" ++ integer_to_list(Port),
- integer_to_list(Tid),
- integer_to_list(Size),
- Lb_pid])
- end, Metrics).
-
-show_dest_status(Url) ->
- #url{host = Host, port = Port} = ibrowse_lib:parse_url(Url),
- show_dest_status(Host, Port).
-
-%% @doc Shows some internal information about load balancing to a
-%% specified Host:Port. Info about workers spawned using
-%% spawn_worker_process/2 or spawn_link_worker_process/2 is not
-%% included.
-show_dest_status(Host, Port) ->
- case get_metrics(Host, Port) of
- {Lb_pid, MsgQueueSize, Tid, Size,
- {{First_p_sz, First_speculative_sz},
- {Last_p_sz, Last_speculative_sz}}} ->
- io:format("Load Balancer Pid : ~p~n"
- "LB process msg q size : ~p~n"
- "LB ETS table id : ~p~n"
- "Num Connections : ~p~n"
- "Smallest pipeline : ~p:~p~n"
- "Largest pipeline : ~p:~p~n",
- [Lb_pid, MsgQueueSize, Tid, Size,
- First_p_sz, First_speculative_sz,
- Last_p_sz, Last_speculative_sz]);
- _Err ->
- io:format("Metrics not available~n", [])
- end.
-
-get_metrics() ->
- Dests = lists:filter(fun({lb_pid, {Host, Port}, _}) when is_list(Host),
- is_integer(Port) ->
- true;
- (_) ->
- false
- end, ets:tab2list(ibrowse_lb)),
- All_ets = ets:all(),
- lists:map(fun({lb_pid, {Host, Port}, Lb_pid}) ->
- case lists:dropwhile(
- fun(Tid) ->
- ets:info(Tid, owner) /= Lb_pid
- end, All_ets) of
- [] ->
- {Host, Port, Lb_pid, unknown, 0};
- [Tid | _] ->
- Size = case catch (ets:info(Tid, size)) of
- N when is_integer(N) -> N;
- _ -> 0
- end,
- {Host, Port, Lb_pid, Tid, Size}
- end
- end, Dests).
-
-get_metrics(Host, Port) ->
- case ets:lookup(ibrowse_lb, {Host, Port}) of
- [] ->
- no_active_processes;
- [#lb_pid{pid = Lb_pid}] ->
- MsgQueueSize = (catch process_info(Lb_pid, message_queue_len)),
- %% {Lb_pid, MsgQueueSize,
- case lists:dropwhile(
- fun(Tid) ->
- ets:info(Tid, owner) /= Lb_pid
- end, ets:all()) of
- [] ->
- {Lb_pid, MsgQueueSize, unknown, 0, unknown};
- [Tid | _] ->
- try
- Size = ets:info(Tid, size),
- case Size of
- 0 ->
- ok;
- _ ->
- First = ets:first(Tid),
- Last = ets:last(Tid),
- [{_, First_p_sz, First_speculative_sz}] = ets:lookup(Tid, First),
- [{_, Last_p_sz, Last_speculative_sz}] = ets:lookup(Tid, Last),
- {Lb_pid, MsgQueueSize, Tid, Size,
- {{First_p_sz, First_speculative_sz}, {Last_p_sz, Last_speculative_sz}}}
- end
- catch _:_ ->
- not_available
- end
- end
- end.
-
-%% @doc Clear current configuration for ibrowse and load from the file
-%% ibrowse.conf in the IBROWSE_EBIN/../priv directory. Current
-%% configuration is cleared only if the ibrowse.conf file is readable
-%% using file:consult/1
-rescan_config() ->
- gen_server:call(?MODULE, rescan_config).
-
-%% Clear current configuration for ibrowse and load from the specified
-%% file. Current configuration is cleared only if the specified
-%% file is readable using file:consult/1
-rescan_config([{_,_}|_]=Terms) ->
- gen_server:call(?MODULE, {rescan_config_terms, Terms});
-rescan_config(File) when is_list(File) ->
- gen_server:call(?MODULE, {rescan_config, File}).
-
-%% @doc Add additional configuration elements at runtime.
-add_config([{_,_}|_]=Terms) ->
- gen_server:call(?MODULE, {add_config_terms, Terms}).
-
-%%====================================================================
-%% Server functions
-%%====================================================================
-
-%%--------------------------------------------------------------------
-%% Function: init/1
-%% Description: Initiates the server
-%% Returns: {ok, State} |
-%% {ok, State, Timeout} |
-%% ignore |
-%% {stop, Reason}
-%%--------------------------------------------------------------------
-init(_) ->
- process_flag(trap_exit, true),
- State = #state{},
- put(my_trace_flag, State#state.trace),
- put(ibrowse_trace_token, "ibrowse"),
- ibrowse_lb = ets:new(ibrowse_lb, [named_table, public, {keypos, 2}]),
- ibrowse_conf = ets:new(ibrowse_conf, [named_table, protected, {keypos, 2}]),
- ibrowse_stream = ets:new(ibrowse_stream, [named_table, public]),
- import_config(),
- {ok, #state{}}.
-
-import_config() ->
- case code:priv_dir(ibrowse) of
- {error, _} ->
- ok;
- PrivDir ->
- Filename = filename:join(PrivDir, "ibrowse.conf"),
- import_config(Filename)
- end.
-
-import_config(Filename) ->
- case file:consult(Filename) of
- {ok, Terms} ->
- apply_config(Terms);
- _Err ->
- ok
- end.
-
-apply_config(Terms) ->
- ets:delete_all_objects(ibrowse_conf),
- insert_config(Terms).
-
-insert_config(Terms) ->
- Fun = fun({dest, Host, Port, MaxSess, MaxPipe, Options})
- when is_list(Host), is_integer(Port),
- is_integer(MaxSess), MaxSess > 0,
- is_integer(MaxPipe), MaxPipe > 0, is_list(Options) ->
- I = [{{max_sessions, Host, Port}, MaxSess},
- {{max_pipeline_size, Host, Port}, MaxPipe},
- {{options, Host, Port}, Options}],
- lists:foreach(
- fun({X, Y}) ->
- ets:insert(ibrowse_conf,
- #ibrowse_conf{key = X,
- value = Y})
- end, I);
- ({K, V}) ->
- ets:insert(ibrowse_conf,
- #ibrowse_conf{key = K,
- value = V});
- (X) ->
- io:format("Skipping unrecognised term: ~p~n", [X])
- end,
- lists:foreach(Fun, Terms).
-
-%% @doc Internal export
-get_config_value(Key) ->
- try
- [#ibrowse_conf{value = V}] = ets:lookup(ibrowse_conf, Key),
- V
- catch
- error:badarg ->
- throw({error, ibrowse_not_running})
- end.
-
-%% @doc Internal export
-get_config_value(Key, DefVal) ->
- try
- case ets:lookup(ibrowse_conf, Key) of
- [] ->
- DefVal;
- [#ibrowse_conf{value = V}] ->
- V
- end
- catch
- error:badarg ->
- throw({error, ibrowse_not_running})
- end.
-
-set_config_value(Key, Val) ->
- ets:insert(ibrowse_conf, #ibrowse_conf{key = Key, value = Val}).
-%%--------------------------------------------------------------------
-%% Function: handle_call/3
-%% Description: Handling call messages
-%% Returns: {reply, Reply, State} |
-%% {reply, Reply, State, Timeout} |
-%% {noreply, State} |
-%% {noreply, State, Timeout} |
-%% {stop, Reason, Reply, State} | (terminate/2 is called)
-%% {stop, Reason, State} (terminate/2 is called)
-%%--------------------------------------------------------------------
-handle_call({get_lb_pid, #url{host = Host, port = Port} = Url}, _From, State) ->
- Pid = do_get_connection(Url, ets:lookup(ibrowse_lb, {Host, Port})),
- {reply, Pid, State};
-
-handle_call(stop, _From, State) ->
- do_trace("IBROWSE shutting down~n", []),
- ets:foldl(fun(#lb_pid{pid = Pid}, Acc) ->
- ibrowse_lb:stop(Pid),
- Acc
- end, [], ibrowse_lb),
- {stop, normal, ok, State};
-
-handle_call({set_config_value, Key, Val}, _From, State) ->
- set_config_value(Key, Val),
- {reply, ok, State};
-
-handle_call(rescan_config, _From, State) ->
- Ret = (catch import_config()),
- {reply, Ret, State};
-
-handle_call({rescan_config, File}, _From, State) ->
- Ret = (catch import_config(File)),
- {reply, Ret, State};
-
-handle_call({rescan_config_terms, Terms}, _From, State) ->
- Ret = (catch apply_config(Terms)),
- {reply, Ret, State};
-
-handle_call({add_config_terms, Terms}, _From, State) ->
- Ret = (catch insert_config(Terms)),
- {reply, Ret, State};
-
-handle_call(Request, _From, State) ->
- Reply = {unknown_request, Request},
- {reply, Reply, State}.
-
-%%--------------------------------------------------------------------
-%% Function: handle_cast/2
-%% Description: Handling cast messages
-%% Returns: {noreply, State} |
-%% {noreply, State, Timeout} |
-%% {stop, Reason, State} (terminate/2 is called)
-%%--------------------------------------------------------------------
-
-handle_cast(_Msg, State) ->
- {noreply, State}.
-
-%%--------------------------------------------------------------------
-%% Function: handle_info/2
-%% Description: Handling all non call/cast messages
-%% Returns: {noreply, State} |
-%% {noreply, State, Timeout} |
-%% {stop, Reason, State} (terminate/2 is called)
-%%--------------------------------------------------------------------
-handle_info(all_trace_off, State) ->
- Mspec = [{{ibrowse_conf,{trace,'$1','$2'},true},[],[{{'$1','$2'}}]}],
- Trace_on_dests = ets:select(ibrowse_conf, Mspec),
- Fun = fun(#lb_pid{host_port = {H, P}, pid = Pid}, _) ->
- case lists:member({H, P}, Trace_on_dests) of
- false ->
- ok;
- true ->
- catch Pid ! {trace, false}
- end;
- (_, Acc) ->
- Acc
- end,
- ets:foldl(Fun, undefined, ibrowse_lb),
- ets:select_delete(ibrowse_conf, [{{ibrowse_conf,{trace,'$1','$2'},true},[],['true']}]),
- {noreply, State};
-
-handle_info({trace, Bool}, State) ->
- put(my_trace_flag, Bool),
- {noreply, State};
-
-handle_info({trace, Bool, Host, Port}, State) ->
- Fun = fun(#lb_pid{host_port = {H, P}, pid = Pid}, _)
- when H == Host,
- P == Port ->
- catch Pid ! {trace, Bool};
- (_, Acc) ->
- Acc
- end,
- ets:foldl(Fun, undefined, ibrowse_lb),
- ets:insert(ibrowse_conf, #ibrowse_conf{key = {trace, Host, Port},
- value = Bool}),
- {noreply, State};
-
-handle_info(_Info, State) ->
- {noreply, State}.
-
-%%--------------------------------------------------------------------
-%% Function: terminate/2
-%% Description: Shutdown the server
-%% Returns: any (ignored by gen_server)
-%%--------------------------------------------------------------------
-terminate(_Reason, _State) ->
- ok.
-
-%%--------------------------------------------------------------------
-%% Func: code_change/3
-%% Purpose: Convert process state when code is changed
-%% Returns: {ok, NewState}
-%%--------------------------------------------------------------------
-code_change(_OldVsn, State, _Extra) ->
- {ok, State}.
-
-%%--------------------------------------------------------------------
-%%% Internal functions
-%%--------------------------------------------------------------------
-do_get_connection(#url{host = Host, port = Port}, []) ->
- {ok, Pid} = ibrowse_lb:start_link([Host, Port]),
- ets:insert(ibrowse_lb, #lb_pid{host_port = {Host, Port}, pid = Pid}),
- Pid;
-do_get_connection(_Url, [#lb_pid{pid = Pid}]) ->
- Pid.
http://git-wip-us.apache.org/repos/asf/couchdb/blob/3822d8f4/src/ibrowse/src/ibrowse_app.erl
----------------------------------------------------------------------
diff --git a/src/ibrowse/src/ibrowse_app.erl b/src/ibrowse/src/ibrowse_app.erl
deleted file mode 100644
index d3a0f7b..0000000
--- a/src/ibrowse/src/ibrowse_app.erl
+++ /dev/null
@@ -1,63 +0,0 @@
-%%%-------------------------------------------------------------------
-%%% File : ibrowse_app.erl
-%%% Author : Chandrashekhar Mullaparthi <ch...@t-mobile.co.uk>
-%%% Description :
-%%%
-%%% Created : 15 Oct 2003 by Chandrashekhar Mullaparthi <ch...@t-mobile.co.uk>
-%%%-------------------------------------------------------------------
--module(ibrowse_app).
-
--behaviour(application).
-%%--------------------------------------------------------------------
-%% Include files
-%%--------------------------------------------------------------------
-
-%%--------------------------------------------------------------------
-%% External exports
-%%--------------------------------------------------------------------
--export([
- start/2,
- stop/1
- ]).
-
-%%--------------------------------------------------------------------
-%% Internal exports
-%%--------------------------------------------------------------------
--export([
- ]).
-
-%%--------------------------------------------------------------------
-%% Macros
-%%--------------------------------------------------------------------
-
-%%--------------------------------------------------------------------
-%% Records
-%%--------------------------------------------------------------------
-
-%%====================================================================
-%% External functions
-%%====================================================================
-%%--------------------------------------------------------------------
-%% Func: start/2
-%% Returns: {ok, Pid} |
-%% {ok, Pid, State} |
-%% {error, Reason}
-%%--------------------------------------------------------------------
-start(_Type, _StartArgs) ->
- case ibrowse_sup:start_link() of
- {ok, Pid} ->
- {ok, Pid};
- Error ->
- Error
- end.
-
-%%--------------------------------------------------------------------
-%% Func: stop/1
-%% Returns: any
-%%--------------------------------------------------------------------
-stop(_State) ->
- ok.
-
-%%====================================================================
-%% Internal functions
-%%====================================================================