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441 lines
14 KiB
441 lines
14 KiB
/*****************************************************************************
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* test4.c : Miscellaneous stress tests module for vlc
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*****************************************************************************
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* Copyright (C) 2002 the VideoLAN team
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* $Id$
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*
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* Authors: Samuel Hocevar <sam@zoy.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#include <vlc/vlc.h>
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#include <signal.h>
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/*****************************************************************************
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* Defines
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*****************************************************************************/
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#define MAXVAR 50 /* Number of variables to create */
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#define MAXSET 2000 /* Number of variables to set */
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#define MAXOBJ 1000 /* Number of objects to create */
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#define MAXLOOK 10000 /* Number of objects to lookup */
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#define MAXTH 4 /* Number of threads to spawn */
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/*****************************************************************************
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* Local prototypes.
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*****************************************************************************/
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static int Foo ( vlc_object_t *, char const *,
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vlc_value_t, vlc_value_t, void * );
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static int Callback ( vlc_object_t *, char const *,
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vlc_value_t, vlc_value_t, void * );
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static int MyCallback( vlc_object_t *, char const *,
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vlc_value_t, vlc_value_t, void * );
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static void * MyThread ( vlc_object_t * );
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static int Stress ( vlc_object_t *, char const *,
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vlc_value_t, vlc_value_t, void * );
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static void * Dummy ( vlc_object_t * );
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static int Signal ( vlc_object_t *, char const *,
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vlc_value_t, vlc_value_t, void * );
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/*****************************************************************************
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* Module descriptor.
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*****************************************************************************/
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vlc_module_begin();
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set_description( _("Miscellaneous stress tests") );
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var_Create( p_module->p_libvlc, "foo-test",
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VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
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var_AddCallback( p_module->p_libvlc, "foo-test", Foo, NULL );
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var_Create( p_module->p_libvlc, "callback-test",
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VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
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var_AddCallback( p_module->p_libvlc, "callback-test", Callback, NULL );
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var_Create( p_module->p_libvlc, "stress-test",
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VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
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var_AddCallback( p_module->p_libvlc, "stress-test", Stress, NULL );
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var_Create( p_module->p_libvlc, "signal",
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VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
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var_AddCallback( p_module->p_libvlc, "signal", Signal, NULL );
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vlc_module_end();
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/*****************************************************************************
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* Foo: put anything here
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*****************************************************************************/
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static int Foo( vlc_object_t *p_this, char const *psz_cmd,
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vlc_value_t oldval, vlc_value_t newval, void *p_data )
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{
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vlc_value_t val;
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int i;
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var_Create( p_this, "honk", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
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val.psz_string = "foo";
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var_Change( p_this, "honk", VLC_VAR_ADDCHOICE, &val, NULL );
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val.psz_string = "bar";
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var_Change( p_this, "honk", VLC_VAR_ADDCHOICE, &val, NULL );
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val.psz_string = "baz";
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var_Change( p_this, "honk", VLC_VAR_ADDCHOICE, &val, NULL );
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var_Change( p_this, "honk", VLC_VAR_SETDEFAULT, &val, NULL );
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var_Get( p_this, "honk", &val ); printf( "value: %s\n", val.psz_string );
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val.psz_string = "foo";
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var_Set( p_this, "honk", val );
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var_Get( p_this, "honk", &val ); printf( "value: %s\n", val.psz_string );
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val.psz_string = "blork";
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var_Set( p_this, "honk", val );
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var_Get( p_this, "honk", &val ); printf( "value: %s\n", val.psz_string );
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val.psz_string = "baz";
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var_Change( p_this, "honk", VLC_VAR_DELCHOICE, &val, NULL );
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var_Get( p_this, "honk", &val ); printf( "value: %s\n", val.psz_string );
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var_Change( p_this, "honk", VLC_VAR_GETLIST, &val, NULL );
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for( i = 0 ; i < val.p_list->i_count ; i++ )
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{
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printf( "value %i: %s\n", i, val.p_list->p_values[i].psz_string );
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}
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var_Change( p_this, "honk", VLC_VAR_FREELIST, &val, NULL );
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var_Destroy( p_this, "honk" );
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* Callback: test callback functions
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*****************************************************************************/
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static int Callback( vlc_object_t *p_this, char const *psz_cmd,
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vlc_value_t oldval, vlc_value_t newval, void *p_data )
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{
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int i;
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char psz_var[20];
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vlc_object_t *pp_objects[10];
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vlc_value_t val;
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/* Allocate a few variables */
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for( i = 0; i < 1000; i++ )
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{
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sprintf( psz_var, "blork-%i", i );
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var_Create( p_this, psz_var, VLC_VAR_INTEGER );
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var_AddCallback( p_this, psz_var, MyCallback, NULL );
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}
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/*
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* Test #1: callback loop detection
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*/
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printf( "Test #1: callback loop detection\n" );
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printf( " - without boundary check (vlc should print an error)\n" );
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val.i_int = 1234567;
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var_Set( p_this, "blork-12", val );
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printf( " - with boundary check\n" );
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val.i_int = 12;
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var_Set( p_this, "blork-12", val );
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/*
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* Test #2: concurrent access
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*/
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printf( "Test #2: concurrent access\n" );
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printf( " - launch worker threads\n" );
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for( i = 0; i < 10; i++ )
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{
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pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
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vlc_object_attach( pp_objects[i], p_this );
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vlc_thread_create( pp_objects[i], "foo", MyThread, 0, VLC_TRUE );
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}
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msleep( 3000000 );
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printf( " - kill worker threads\n" );
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for( i = 0; i < 10; i++ )
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{
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vlc_object_kill( pp_objects[i] );
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vlc_thread_join( pp_objects[i] );
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vlc_object_detach( pp_objects[i] );
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vlc_object_destroy( pp_objects[i] );
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}
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/* Clean our mess */
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for( i = 0; i < 1000; i++ )
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{
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sprintf( psz_var, "blork-%i", i );
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var_DelCallback( p_this, psz_var, MyCallback, NULL );
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var_Destroy( p_this, psz_var );
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}
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* MyCallback: used by callback-test
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*****************************************************************************/
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static int MyCallback( vlc_object_t *p_this, char const *psz_var,
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vlc_value_t oldval, vlc_value_t newval, void *p_data )
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{
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int i_var = 1 + atoi( psz_var + strlen("blork-") );
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char psz_newvar[20];
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if( i_var == 1000 )
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{
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i_var = 0;
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}
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/* If we are requested to stop, then stop. */
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if( i_var == newval.i_int )
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{
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return VLC_SUCCESS;
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}
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/* If we're the blork-3 callback, set blork-4, and so on. */
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sprintf( psz_newvar, "blork-%i", i_var );
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var_Set( p_this, psz_newvar, newval );
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* MyThread: used by callback-test, creates objects and then do nothing.
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*****************************************************************************/
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static void * MyThread( vlc_object_t *p_this )
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{
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char psz_var[20];
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vlc_value_t val;
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vlc_object_t *p_parent = p_this->p_parent;
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vlc_thread_ready( p_this );
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val.i_int = 42;
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while( !p_this->b_die )
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{
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int i = (int) (100.0 * rand() / (RAND_MAX));
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sprintf( psz_var, "blork-%i", i );
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val.i_int = i + 200;
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var_Set( p_parent, psz_var, val );
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/* This is quite heavy, but we only have 10 threads. Keep cool. */
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msleep( 1000 );
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}
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return NULL;
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}
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/*****************************************************************************
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* Stress: perform various stress tests
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*****************************************************************************/
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static int Stress( vlc_object_t *p_this, char const *psz_cmd,
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vlc_value_t oldval, vlc_value_t newval, void *p_data )
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{
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vlc_object_t **pp_objects;
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mtime_t start;
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char ** ppsz_name;
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char * psz_blob;
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int i, i_level;
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if( *newval.psz_string )
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{
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i_level = atoi( newval.psz_string );
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if( i_level <= 0 )
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{
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i_level = 1;
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}
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else if( i_level > 200 )
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{
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/* It becomes quite dangerous above 150 */
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i_level = 200;
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}
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}
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else
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{
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i_level = 10;
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}
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/* Allocate required data */
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ppsz_name = malloc( MAXVAR * i_level * sizeof(char*) );
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psz_blob = malloc( 20 * MAXVAR * i_level * sizeof(char) );
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for( i = 0; i < MAXVAR * i_level; i++ )
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{
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ppsz_name[i] = psz_blob + 20 * i;
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}
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pp_objects = malloc( MAXOBJ * i_level * sizeof(void*) );
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/*
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* Test #1: objects
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*/
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printf( "Test #1: objects\n" );
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printf( " - creating %i objects\n", MAXOBJ * i_level );
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start = mdate();
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for( i = 0; i < MAXOBJ * i_level; i++ )
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{
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pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
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}
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printf( " - randomly looking up %i objects\n", MAXLOOK * i_level );
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for( i = MAXLOOK * i_level; i--; )
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{
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int id = (int) (MAXOBJ * i_level * 1.0 * rand() / (RAND_MAX));
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vlc_object_get( p_this, pp_objects[id]->i_object_id );
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vlc_object_release( p_this );
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}
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printf( " - destroying the objects (LIFO)\n" );
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for( i = MAXOBJ * i_level; i--; )
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{
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vlc_object_destroy( pp_objects[i] );
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}
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printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
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/*
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* Test #2: integer variables
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*/
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printf( "Test #2: integer variables\n" );
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printf( " - creating %i integer variables\n", MAXVAR * i_level );
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start = mdate();
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for( i = 0; i < MAXVAR * i_level; i++ )
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{
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sprintf( ppsz_name[i], "foo-%04i-bar-%04x", i, i * 11 );
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var_Create( p_this, ppsz_name[i], VLC_VAR_INTEGER );
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}
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printf( " - randomly assigning %i values\n", MAXSET * i_level );
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for( i = 0; i < MAXSET * i_level; i++ )
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{
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int v = (int) (MAXVAR * i_level * 1.0 * rand() / (RAND_MAX));
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var_Set( p_this, ppsz_name[v], (vlc_value_t)i );
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}
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printf( " - destroying the variables\n" );
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for( i = 0; i < MAXVAR * i_level; i++ )
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{
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var_Destroy( p_this, ppsz_name[i] );
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}
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printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
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/*
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* Test #3: string variables
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*/
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printf( "Test #3: string variables\n" );
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printf( " - creating %i string variables\n", MAXVAR * i_level );
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start = mdate();
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for( i = 0; i < MAXVAR * i_level; i++ )
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{
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sprintf( ppsz_name[i], "foo-%04i-bar-%04x", i, i * 11 );
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var_Create( p_this, ppsz_name[i], VLC_VAR_STRING );
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}
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printf( " - randomly assigning %i values\n", MAXSET * i_level );
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for( i = 0; i < MAXSET * i_level; i++ )
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{
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int v = (int) (MAXVAR * i_level * 1.0 * rand() / (RAND_MAX));
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var_Set( p_this, ppsz_name[v], (vlc_value_t)ppsz_name[v] );
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}
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printf( " - destroying the variables\n" );
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for( i = 0; i < MAXVAR * i_level; i++ )
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{
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var_Destroy( p_this, ppsz_name[i] );
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}
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printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
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/*
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* Test #4: threads
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*/
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printf( "Test #4: threads\n" );
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start = mdate();
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printf( " - spawning %i threads that will each create %i objects\n",
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MAXTH * i_level, MAXOBJ/MAXTH );
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for( i = 0; i < MAXTH * i_level; i++ )
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{
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pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
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vlc_thread_create( pp_objects[i], "foo", Dummy, 0, VLC_TRUE );
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}
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printf( " - killing the threads (LIFO)\n" );
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for( i = MAXTH * i_level; i--; )
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{
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pp_objects[i]->b_die = VLC_TRUE;
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vlc_thread_join( pp_objects[i] );
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vlc_object_destroy( pp_objects[i] );
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}
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printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
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/* Free required data */
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free( pp_objects );
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free( psz_blob );
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free( ppsz_name );
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* Dummy: used by stress-test, creates objects and then do nothing.
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*****************************************************************************/
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static void * Dummy( vlc_object_t *p_this )
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{
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int i;
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vlc_object_t *pp_objects[MAXOBJ/MAXTH];
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for( i = 0; i < MAXOBJ/MAXTH; i++ )
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{
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pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
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}
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vlc_thread_ready( p_this );
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while( !p_this->b_die )
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{
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msleep( 10000 );
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}
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for( i = MAXOBJ/MAXTH; i--; )
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{
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vlc_object_destroy( pp_objects[i] );
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}
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return NULL;
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}
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/*****************************************************************************
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* Signal: send a signal to the current thread.
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*****************************************************************************/
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static int Signal( vlc_object_t *p_this, char const *psz_cmd,
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vlc_value_t oldval, vlc_value_t newval, void *p_data )
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{
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raise( atoi(newval.psz_string) );
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return VLC_SUCCESS;
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}
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