1 /*****************************************************************************
2 * test4.c : Miscellaneous stress tests module for vlc
3 *****************************************************************************
4 * Copyright (C) 2002 VideoLAN
5 * $Id: test4.c,v 1.6 2002/12/14 19:34:06 gbazin Exp $
7 * Authors: Samuel Hocevar <sam@zoy.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
32 /*****************************************************************************
34 *****************************************************************************/
35 #define MAXVAR 50 /* Number of variables to create */
36 #define MAXSET 2000 /* Number of variables to set */
37 #define MAXOBJ 1000 /* Number of objects to create */
38 #define MAXLOOK 10000 /* Number of objects to lookup */
39 #define MAXTH 4 /* Number of threads to spawn */
41 /*****************************************************************************
43 *****************************************************************************/
44 static int Foo ( vlc_object_t *, char const *,
45 vlc_value_t, vlc_value_t, void * );
46 static int Callback ( vlc_object_t *, char const *,
47 vlc_value_t, vlc_value_t, void * );
48 static int MyCallback( vlc_object_t *, char const *,
49 vlc_value_t, vlc_value_t, void * );
50 static void * MyThread ( vlc_object_t * );
52 static int Stress ( vlc_object_t *, char const *,
53 vlc_value_t, vlc_value_t, void * );
54 static void * Dummy ( vlc_object_t * );
56 static int Signal ( vlc_object_t *, char const *,
57 vlc_value_t, vlc_value_t, void * );
59 /*****************************************************************************
61 *****************************************************************************/
63 set_description( _("Miscellaneous stress tests") );
64 var_Create( p_module->p_libvlc, "foo-test",
65 VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
66 var_AddCallback( p_module->p_libvlc, "foo-test", Foo, NULL );
67 var_Create( p_module->p_libvlc, "callback-test",
68 VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
69 var_AddCallback( p_module->p_libvlc, "callback-test", Callback, NULL );
70 var_Create( p_module->p_libvlc, "stress-test",
71 VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
72 var_AddCallback( p_module->p_libvlc, "stress-test", Stress, NULL );
73 var_Create( p_module->p_libvlc, "signal",
74 VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
75 var_AddCallback( p_module->p_libvlc, "signal", Signal, NULL );
78 /*****************************************************************************
79 * Foo: put anything here
80 *****************************************************************************/
81 static int Foo( vlc_object_t *p_this, char const *psz_cmd,
82 vlc_value_t oldval, vlc_value_t newval, void *p_data )
87 var_Create( p_this, "honk", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
89 val.psz_string = "foo";
90 var_Change( p_this, "honk", VLC_VAR_ADDCHOICE, &val );
91 val.psz_string = "bar";
92 var_Change( p_this, "honk", VLC_VAR_ADDCHOICE, &val );
93 val.psz_string = "baz";
94 var_Change( p_this, "honk", VLC_VAR_ADDCHOICE, &val );
95 var_Change( p_this, "honk", VLC_VAR_SETDEFAULT, &val );
97 var_Get( p_this, "honk", &val ); printf( "value: %s\n", val.psz_string );
99 val.psz_string = "foo";
100 var_Set( p_this, "honk", val );
102 var_Get( p_this, "honk", &val ); printf( "value: %s\n", val.psz_string );
104 val.psz_string = "blork";
105 var_Set( p_this, "honk", val );
107 var_Get( p_this, "honk", &val ); printf( "value: %s\n", val.psz_string );
109 val.psz_string = "baz";
110 var_Change( p_this, "honk", VLC_VAR_DELCHOICE, &val );
112 var_Get( p_this, "honk", &val ); printf( "value: %s\n", val.psz_string );
114 var_Change( p_this, "honk", VLC_VAR_GETLIST, &val );
115 for( i = 0 ; i < val.p_list->i_count ; i++ )
117 printf( "value %i: %s\n", i, val.p_list->p_values[i].psz_string );
119 var_Change( p_this, "honk", VLC_VAR_FREELIST, &val );
121 var_Destroy( p_this, "honk" );
126 /*****************************************************************************
127 * Callback: test callback functions
128 *****************************************************************************/
129 static int Callback( vlc_object_t *p_this, char const *psz_cmd,
130 vlc_value_t oldval, vlc_value_t newval, void *p_data )
134 vlc_object_t *pp_objects[10];
137 /* Allocate a few variables */
138 for( i = 0; i < 1000; i++ )
140 sprintf( psz_var, "blork-%i", i );
141 var_Create( p_this, psz_var, VLC_VAR_INTEGER );
142 var_AddCallback( p_this, psz_var, MyCallback, NULL );
146 * Test #1: callback loop detection
148 printf( "Test #1: callback loop detection\n" );
150 printf( " - without boundary check (vlc should print an error)\n" );
152 var_Set( p_this, "blork-12", val );
154 printf( " - with boundary check\n" );
156 var_Set( p_this, "blork-12", val );
159 * Test #2: concurrent access
161 printf( "Test #2: concurrent access\n" );
163 printf( " - launch worker threads\n" );
165 for( i = 0; i < 10; i++ )
167 pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
168 vlc_object_attach( pp_objects[i], p_this );
169 vlc_thread_create( pp_objects[i], "foo", MyThread, 0, VLC_TRUE );
174 printf( " - kill worker threads\n" );
176 for( i = 0; i < 10; i++ )
178 pp_objects[i]->b_die = VLC_TRUE;
179 vlc_thread_join( pp_objects[i] );
180 vlc_object_detach( pp_objects[i] );
181 vlc_object_destroy( pp_objects[i] );
185 for( i = 0; i < 1000; i++ )
187 sprintf( psz_var, "blork-%i", i );
188 var_DelCallback( p_this, psz_var, MyCallback, NULL );
189 var_Destroy( p_this, psz_var );
195 /*****************************************************************************
196 * MyCallback: used by callback-test
197 *****************************************************************************/
198 static int MyCallback( vlc_object_t *p_this, char const *psz_var,
199 vlc_value_t oldval, vlc_value_t newval, void *p_data )
201 int i_var = 1 + atoi( psz_var + strlen("blork-") );
209 /* If we are requested to stop, then stop. */
210 if( i_var == newval.i_int )
215 /* If we're the blork-3 callback, set blork-4, and so on. */
216 sprintf( psz_newvar, "blork-%i", i_var );
217 var_Set( p_this, psz_newvar, newval );
222 /*****************************************************************************
223 * MyThread: used by callback-test, creates objects and then do nothing.
224 *****************************************************************************/
225 static void * MyThread( vlc_object_t *p_this )
229 vlc_object_t *p_parent = p_this->p_parent;
231 vlc_thread_ready( p_this );
235 while( !p_this->b_die )
237 int i = (int) (100.0 * rand() / (RAND_MAX));
239 sprintf( psz_var, "blork-%i", i );
241 var_Set( p_parent, psz_var, val );
243 /* This is quite heavy, but we only have 10 threads. Keep cool. */
250 /*****************************************************************************
251 * Stress: perform various stress tests
252 *****************************************************************************/
253 static int Stress( vlc_object_t *p_this, char const *psz_cmd,
254 vlc_value_t oldval, vlc_value_t newval, void *p_data )
256 vlc_object_t **pp_objects;
262 if( *newval.psz_string )
264 i_level = atoi( newval.psz_string );
269 else if( i_level > 200 )
271 /* It becomes quite dangerous above 150 */
280 /* Allocate required data */
281 ppsz_name = malloc( MAXVAR * i_level * sizeof(char*) );
282 psz_blob = malloc( 20 * MAXVAR * i_level * sizeof(char) );
283 for( i = 0; i < MAXVAR * i_level; i++ )
285 ppsz_name[i] = psz_blob + 20 * i;
288 pp_objects = malloc( MAXOBJ * i_level * sizeof(void*) );
293 printf( "Test #1: objects\n" );
295 printf( " - creating %i objects\n", MAXOBJ * i_level );
297 for( i = 0; i < MAXOBJ * i_level; i++ )
299 pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
302 printf( " - randomly looking up %i objects\n", MAXLOOK * i_level );
303 for( i = MAXLOOK * i_level; i--; )
305 int id = (int) (MAXOBJ * i_level * 1.0 * rand() / (RAND_MAX));
306 vlc_object_get( p_this, pp_objects[id]->i_object_id );
307 vlc_object_release( p_this );
310 printf( " - destroying the objects (LIFO)\n" );
311 for( i = MAXOBJ * i_level; i--; )
313 vlc_object_destroy( pp_objects[i] );
316 printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
319 * Test #2: integer variables
321 printf( "Test #2: integer variables\n" );
323 printf( " - creating %i integer variables\n", MAXVAR * i_level );
325 for( i = 0; i < MAXVAR * i_level; i++ )
327 sprintf( ppsz_name[i], "foo-%04i-bar-%04x", i, i * 11 );
328 var_Create( p_this, ppsz_name[i], VLC_VAR_INTEGER );
331 printf( " - randomly assigning %i values\n", MAXSET * i_level );
332 for( i = 0; i < MAXSET * i_level; i++ )
334 int v = (int) (MAXVAR * i_level * 1.0 * rand() / (RAND_MAX));
335 var_Set( p_this, ppsz_name[v], (vlc_value_t)i );
338 printf( " - destroying the variables\n" );
339 for( i = 0; i < MAXVAR * i_level; i++ )
341 var_Destroy( p_this, ppsz_name[i] );
344 printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
347 * Test #3: string variables
349 printf( "Test #3: string variables\n" );
351 printf( " - creating %i string variables\n", MAXVAR * i_level );
353 for( i = 0; i < MAXVAR * i_level; i++ )
355 sprintf( ppsz_name[i], "foo-%04i-bar-%04x", i, i * 11 );
356 var_Create( p_this, ppsz_name[i], VLC_VAR_STRING );
359 printf( " - randomly assigning %i values\n", MAXSET * i_level );
360 for( i = 0; i < MAXSET * i_level; i++ )
362 int v = (int) (MAXVAR * i_level * 1.0 * rand() / (RAND_MAX));
363 var_Set( p_this, ppsz_name[v], (vlc_value_t)ppsz_name[v] );
366 printf( " - destroying the variables\n" );
367 for( i = 0; i < MAXVAR * i_level; i++ )
369 var_Destroy( p_this, ppsz_name[i] );
372 printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
377 printf( "Test #4: threads\n" );
380 printf( " - spawning %i threads that will each create %i objects\n",
381 MAXTH * i_level, MAXOBJ/MAXTH );
382 for( i = 0; i < MAXTH * i_level; i++ )
384 pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
385 vlc_thread_create( pp_objects[i], "foo", Dummy, 0, VLC_TRUE );
388 printf( " - killing the threads (LIFO)\n" );
389 for( i = MAXTH * i_level; i--; )
391 pp_objects[i]->b_die = VLC_TRUE;
392 vlc_thread_join( pp_objects[i] );
393 vlc_object_destroy( pp_objects[i] );
396 printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
398 /* Free required data */
406 /*****************************************************************************
407 * Dummy: used by stress-test, creates objects and then do nothing.
408 *****************************************************************************/
409 static void * Dummy( vlc_object_t *p_this )
412 vlc_object_t *pp_objects[MAXOBJ/MAXTH];
414 for( i = 0; i < MAXOBJ/MAXTH; i++ )
416 pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
419 vlc_thread_ready( p_this );
421 while( !p_this->b_die )
426 for( i = MAXOBJ/MAXTH; i--; )
428 vlc_object_destroy( pp_objects[i] );
434 /*****************************************************************************
435 * Signal: send a signal to the current thread.
436 *****************************************************************************/
437 static int Signal( vlc_object_t *p_this, char const *psz_cmd,
438 vlc_value_t oldval, vlc_value_t newval, void *p_data )
440 raise( atoi(newval.psz_string) );