1 /*****************************************************************************
2 * test4.c : Miscellaneous stress tests module for vlc
3 *****************************************************************************
4 * Copyright (C) 2002 the VideoLAN team
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
32 #include <vlc_plugin.h>
36 /*****************************************************************************
38 *****************************************************************************/
39 #define MAXVAR 50 /* Number of variables to create */
40 #define MAXSET 2000 /* Number of variables to set */
41 #define MAXOBJ 1000 /* Number of objects to create */
42 #define MAXLOOK 10000 /* Number of objects to lookup */
43 #define MAXTH 4 /* Number of threads to spawn */
45 /*****************************************************************************
47 *****************************************************************************/
48 static int Foo ( vlc_object_t *, char const *,
49 vlc_value_t, vlc_value_t, void * );
50 static int Callback ( vlc_object_t *, char const *,
51 vlc_value_t, vlc_value_t, void * );
52 static int MyCallback( vlc_object_t *, char const *,
53 vlc_value_t, vlc_value_t, void * );
54 static void * MyThread ( vlc_object_t * );
56 static int Stress ( vlc_object_t *, char const *,
57 vlc_value_t, vlc_value_t, void * );
58 static void * Dummy ( vlc_object_t * );
60 static int Signal ( vlc_object_t *, char const *,
61 vlc_value_t, vlc_value_t, void * );
63 /*****************************************************************************
65 *****************************************************************************/
67 set_description( _("Miscellaneous stress tests") );
68 var_Create( p_module->p_libvlc, "foo-test",
69 VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
70 var_AddCallback( p_module->p_libvlc, "foo-test", Foo, NULL );
71 var_Create( p_module->p_libvlc, "callback-test",
72 VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
73 var_AddCallback( p_module->p_libvlc, "callback-test", Callback, NULL );
74 var_Create( p_module->p_libvlc, "stress-test",
75 VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
76 var_AddCallback( p_module->p_libvlc, "stress-test", Stress, NULL );
77 var_Create( p_module->p_libvlc, "signal",
78 VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
79 var_AddCallback( p_module->p_libvlc, "signal", Signal, NULL );
82 /*****************************************************************************
83 * Foo: put anything here
84 *****************************************************************************/
85 static int Foo( vlc_object_t *p_this, char const *psz_cmd,
86 vlc_value_t oldval, vlc_value_t newval, void *p_data )
91 var_Create( p_this, "honk", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
93 val.psz_string = "foo";
94 var_Change( p_this, "honk", VLC_VAR_ADDCHOICE, &val, NULL );
95 val.psz_string = "bar";
96 var_Change( p_this, "honk", VLC_VAR_ADDCHOICE, &val, NULL );
97 val.psz_string = "baz";
98 var_Change( p_this, "honk", VLC_VAR_ADDCHOICE, &val, NULL );
99 var_Change( p_this, "honk", VLC_VAR_SETDEFAULT, &val, NULL );
101 var_Get( p_this, "honk", &val ); printf( "value: %s\n", val.psz_string );
103 val.psz_string = "foo";
104 var_Set( p_this, "honk", val );
106 var_Get( p_this, "honk", &val ); printf( "value: %s\n", val.psz_string );
108 val.psz_string = "blork";
109 var_Set( p_this, "honk", val );
111 var_Get( p_this, "honk", &val ); printf( "value: %s\n", val.psz_string );
113 val.psz_string = "baz";
114 var_Change( p_this, "honk", VLC_VAR_DELCHOICE, &val, NULL );
116 var_Get( p_this, "honk", &val ); printf( "value: %s\n", val.psz_string );
118 var_Change( p_this, "honk", VLC_VAR_GETLIST, &val, NULL );
119 for( i = 0 ; i < val.p_list->i_count ; i++ )
121 printf( "value %i: %s\n", i, val.p_list->p_values[i].psz_string );
123 var_Change( p_this, "honk", VLC_VAR_FREELIST, &val, NULL );
125 var_Destroy( p_this, "honk" );
130 /*****************************************************************************
131 * Callback: test callback functions
132 *****************************************************************************/
133 static int Callback( vlc_object_t *p_this, char const *psz_cmd,
134 vlc_value_t oldval, vlc_value_t newval, void *p_data )
138 vlc_object_t *pp_objects[10];
141 /* Allocate a few variables */
142 for( i = 0; i < 1000; i++ )
144 sprintf( psz_var, "blork-%i", i );
145 var_Create( p_this, psz_var, VLC_VAR_INTEGER );
146 var_AddCallback( p_this, psz_var, MyCallback, NULL );
150 * Test #1: callback loop detection
152 printf( "Test #1: callback loop detection\n" );
154 printf( " - without boundary check (vlc should print an error)\n" );
156 var_Set( p_this, "blork-12", val );
158 printf( " - with boundary check\n" );
160 var_Set( p_this, "blork-12", val );
163 * Test #2: concurrent access
165 printf( "Test #2: concurrent access\n" );
167 printf( " - launch worker threads\n" );
169 for( i = 0; i < 10; i++ )
171 pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
172 vlc_object_attach( pp_objects[i], p_this );
173 vlc_thread_create( pp_objects[i], "foo", MyThread, 0, true );
178 printf( " - kill worker threads\n" );
180 for( i = 0; i < 10; i++ )
182 vlc_object_kill( pp_objects[i] );
183 vlc_thread_join( pp_objects[i] );
184 vlc_object_detach( pp_objects[i] );
185 vlc_object_release( pp_objects[i] );
189 for( i = 0; i < 1000; i++ )
191 sprintf( psz_var, "blork-%i", i );
192 var_DelCallback( p_this, psz_var, MyCallback, NULL );
193 var_Destroy( p_this, psz_var );
199 /*****************************************************************************
200 * MyCallback: used by callback-test
201 *****************************************************************************/
202 static int MyCallback( vlc_object_t *p_this, char const *psz_var,
203 vlc_value_t oldval, vlc_value_t newval, void *p_data )
205 int i_var = 1 + atoi( psz_var + strlen("blork-") );
213 /* If we are requested to stop, then stop. */
214 if( i_var == newval.i_int )
219 /* If we're the blork-3 callback, set blork-4, and so on. */
220 sprintf( psz_newvar, "blork-%i", i_var );
221 var_Set( p_this, psz_newvar, newval );
226 /*****************************************************************************
227 * MyThread: used by callback-test, creates objects and then do nothing.
228 *****************************************************************************/
229 static void * MyThread( vlc_object_t *p_this )
233 vlc_object_t *p_parent = p_this->p_parent;
235 vlc_thread_ready( p_this );
239 while( !p_this->b_die )
241 int i = (int) (100.0 * rand() / (RAND_MAX));
243 sprintf( psz_var, "blork-%i", i );
245 var_Set( p_parent, psz_var, val );
247 /* This is quite heavy, but we only have 10 threads. Keep cool. */
254 /*****************************************************************************
255 * Stress: perform various stress tests
256 *****************************************************************************/
257 static int Stress( vlc_object_t *p_this, char const *psz_cmd,
258 vlc_value_t oldval, vlc_value_t newval, void *p_data )
260 vlc_object_t **pp_objects;
266 if( *newval.psz_string )
268 i_level = atoi( newval.psz_string );
273 else if( i_level > 200 )
275 /* It becomes quite dangerous above 150 */
284 /* Allocate required data */
285 ppsz_name = malloc( MAXVAR * i_level * sizeof(char*) );
286 psz_blob = malloc( 20 * MAXVAR * i_level * sizeof(char) );
287 for( i = 0; i < MAXVAR * i_level; i++ )
289 ppsz_name[i] = psz_blob + 20 * i;
292 pp_objects = malloc( MAXOBJ * i_level * sizeof(void*) );
297 printf( "Test #1: objects\n" );
299 printf( " - creating %i objects\n", MAXOBJ * i_level );
301 for( i = 0; i < MAXOBJ * i_level; i++ )
303 pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
306 printf( " - randomly looking up %i objects\n", MAXLOOK * i_level );
307 for( i = MAXLOOK * i_level; i--; )
309 int id = (int) (MAXOBJ * i_level * 1.0 * rand() / (RAND_MAX));
310 vlc_object_get( pp_objects[id]->i_object_id );
311 vlc_object_release( p_this );
314 printf( " - destroying the objects (LIFO)\n" );
315 for( i = MAXOBJ * i_level; i--; )
317 vlc_object_release( pp_objects[i] );
320 printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
323 * Test #2: integer variables
325 printf( "Test #2: integer variables\n" );
327 printf( " - creating %i integer variables\n", MAXVAR * i_level );
329 for( i = 0; i < MAXVAR * i_level; i++ )
331 sprintf( ppsz_name[i], "foo-%04i-bar-%04x", i, i * 11 );
332 var_Create( p_this, ppsz_name[i], VLC_VAR_INTEGER );
335 printf( " - randomly assigning %i values\n", MAXSET * i_level );
336 for( i = 0; i < MAXSET * i_level; i++ )
338 int v = (int) (MAXVAR * i_level * 1.0 * rand() / (RAND_MAX));
339 var_Set( p_this, ppsz_name[v], (vlc_value_t)i );
342 printf( " - destroying the variables\n" );
343 for( i = 0; i < MAXVAR * i_level; i++ )
345 var_Destroy( p_this, ppsz_name[i] );
348 printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
351 * Test #3: string variables
353 printf( "Test #3: string variables\n" );
355 printf( " - creating %i string variables\n", MAXVAR * i_level );
357 for( i = 0; i < MAXVAR * i_level; i++ )
359 sprintf( ppsz_name[i], "foo-%04i-bar-%04x", i, i * 11 );
360 var_Create( p_this, ppsz_name[i], VLC_VAR_STRING );
363 printf( " - randomly assigning %i values\n", MAXSET * i_level );
364 for( i = 0; i < MAXSET * i_level; i++ )
366 int v = (int) (MAXVAR * i_level * 1.0 * rand() / (RAND_MAX));
367 var_Set( p_this, ppsz_name[v], (vlc_value_t)ppsz_name[v] );
370 printf( " - destroying the variables\n" );
371 for( i = 0; i < MAXVAR * i_level; i++ )
373 var_Destroy( p_this, ppsz_name[i] );
376 printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
381 printf( "Test #4: threads\n" );
384 printf( " - spawning %i threads that will each create %i objects\n",
385 MAXTH * i_level, MAXOBJ/MAXTH );
386 for( i = 0; i < MAXTH * i_level; i++ )
388 pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
389 vlc_thread_create( pp_objects[i], "foo", Dummy, 0, true );
392 printf( " - killing the threads (LIFO)\n" );
393 for( i = MAXTH * i_level; i--; )
395 pp_objects[i]->b_die = true;
396 vlc_thread_join( pp_objects[i] );
397 vlc_object_release( pp_objects[i] );
400 printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
402 /* Free required data */
410 /*****************************************************************************
411 * Dummy: used by stress-test, creates objects and then do nothing.
412 *****************************************************************************/
413 static void * Dummy( vlc_object_t *p_this )
416 vlc_object_t *pp_objects[MAXOBJ/MAXTH];
418 for( i = 0; i < MAXOBJ/MAXTH; i++ )
420 pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
423 vlc_thread_ready( p_this );
425 while( !p_this->b_die )
430 for( i = MAXOBJ/MAXTH; i--; )
432 vlc_object_release( pp_objects[i] );
438 /*****************************************************************************
439 * Signal: send a signal to the current thread.
440 *****************************************************************************/
441 static int Signal( vlc_object_t *p_this, char const *psz_cmd,
442 vlc_value_t oldval, vlc_value_t newval, void *p_data )
444 raise( atoi(newval.psz_string) );