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http package (only partially working)

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This commit is contained in:
Vítor Santos Costa
2010-06-23 11:52:34 +01:00
parent 6e956b879a
commit 4694a50fa5
98 changed files with 20952 additions and 4 deletions
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packages/http/examples/demo_client.pl Normal file
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/* $Id$
Part of SWI-Prolog
Author: Jan Wielemaker
E-mail: jan@swi.psy.uva.nl
WWW: http://www.swi-prolog.org
Copyright (C): 1985-2002, University of Amsterdam
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
As a special exception, if you link this library with other files,
compiled with a Free Software compiler, to produce an executable, this
library does not by itself cause the resulting executable to be covered
by the GNU General Public License. This exception does not however
invalidate any other reasons why the executable file might be covered by
the GNU General Public License.
*/
:- use_module(library('http/http_client')).
:- use_module(library(debug)).
:- use_module(library('http/http_sgml_plugin')).
% stress(+Times, +Threads, +URLOrAlias)
%
% Typical use: stress(1000, 3, 1): run the test 1000 times with
% 3 client threads on the /xml test from demo_body.pl and verify
% the parsed result.
stress(Times, Parallel, Alias) :-
answer(Alias, URL, _), !,
stress(Times, Parallel, URL).
stress(Times, Parallel, URL) :-
( pool(pool, _)
-> delete_pool(pool)
; true
),
create_pool(pool, Parallel),
stress(Times, URL),
wait_done(Times),
delete_pool(pool).
wait_done(0) :- !.
wait_done(N) :-
thread_get_message(done, Result),
put(Result), flush,
N1 is N - 1,
wait_done(N1).
stress(0, _) :- !.
stress(N, URL) :-
thread_send_message(pool, stress_url(URL)),
NN is N - 1,
stress(NN, URL).
stress_url(URL) :-
thread_self(Me),
atom_number(N, Me),
( catch(http_get(URL, X, [connection(close)]), E, true)
-> ( var(E)
-> ( answer(_, URL, Correct)
-> ( X == Correct
-> thread_send_message(done, N)
; thread_send_message(done, !)
)
; thread_send_message(done, ?)
)
; print_message(error, E),
thread_send_message(done, 'E')
)
; thread_send_message(done, -)
).
:- dynamic
pool/2. % name, threads
create_pool(Name, N) :-
message_queue_create(Name),
findall(Id, (between(1, N, _),
thread_create(worker(Name), Id, [])), Threads),
assert(pool(Name, Threads)).
delete_pool(Name) :-
pool(Name, Threads),
forall(member(_, Threads), thread_send_message(Name, thread_exit(ok))),
forall(member(Id, Threads), thread_join(Id, _)),
message_queue_destroy(Name),
retract(pool(Name, Threads)).
worker(Queue) :-
repeat,
thread_get_message(Queue, Goal),
( catch(Goal, E, true)
-> ( var(E)
-> true
; print_message(error, E)
)
; print_message(error, goal_failed(Goal))
),
fail.
/*******************************
* CORRECT ANSWERS *
*******************************/
answer(1, 'http://localhost:3000/xml',
[ element(message,
[],
[ '\n ',
element(head,
[],
[ '\n ',
element(from,
[],
[ 'Jan Wielemaker'
]),
'\n ',
element(to,
[],
[ 'Prolog users'
]),
'\n ',
element(subject,
[],
[ 'The SWI-Prolog web-server'
]),
'\n '
]),
'\n ',
element(body,
[],
[ '\n',
element(p,
[],
[ '\nThis is the first demo of the web-server serving an XML message\n'
]),
'\n '
]),
'\n'
])
]).