From 112187ec4b5a28a49fca91d1f4fcf5dab8c0ad23 Mon Sep 17 00:00:00 2001
From: Sam Hocevar <sam@videolan.org>
Date: Mon, 14 Oct 2002 16:34:17 +0000
Subject: [PATCH] * ./modules/misc/testsuite/test4.c: added a stress test
module; doesn't get compiled yet because it uses the "command" variables
I'm about to check in. They need to be typed in the rc interface for
instance (-I rc). This module has two available commands: "signal <int>"
which sends the given signal to the vlc process, and "stress [<int>]"
which performs a series of object creation/lookup/destruction, variable
creation/setting/destruction and thread spawning/joining tests. The
optional argument for stress is an integer between 1 and 200 (the bigger,
the heavier the tests; it may hang your machine at around 150, be
careful).
---
modules/misc/testsuite/Modules.am | 1 +
modules/misc/testsuite/test4.c | 250 ++++++++++++++++++++++++++++++
2 files changed, 251 insertions(+)
create mode 100644 modules/misc/testsuite/test4.c
diff --git a/modules/misc/testsuite/Modules.am b/modules/misc/testsuite/Modules.am
index 7225de53a62e..c8f187d8bad8 100644
--- a/modules/misc/testsuite/Modules.am
+++ b/modules/misc/testsuite/Modules.am
@@ -1,3 +1,4 @@
SOURCES_test1 = modules/misc/testsuite/test1.c
SOURCES_test2 = modules/misc/testsuite/test2.cpp
SOURCES_test3 = modules/misc/testsuite/test3.m
+SOURCES_test4 = modules/misc/testsuite/test4.c
diff --git a/modules/misc/testsuite/test4.c b/modules/misc/testsuite/test4.c
new file mode 100644
index 000000000000..4e4e3555b7a4
--- /dev/null
+++ b/modules/misc/testsuite/test4.c
@@ -0,0 +1,250 @@
+/*****************************************************************************
+ * test4.c : Miscellaneous stress tests module for vlc
+ *****************************************************************************
+ * Copyright (C) 2002 VideoLAN
+ * $Id: test4.c,v 1.1 2002/10/14 16:34:17 sam Exp $
+ *
+ * Authors: Samuel Hocevar <sam@zoy.org>
+ *
+ * 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 General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#include <vlc/vlc.h>
+
+#include <stdlib.h>
+#include <signal.h>
+
+/*****************************************************************************
+ * Defines
+ *****************************************************************************/
+#define MAXVAR 50 /* Number of variables to create */
+#define MAXSET 2000 /* Number of variables to set */
+#define MAXOBJ 1000 /* Number of objects to create */
+#define MAXLOOK 10000 /* Number of objects to lookup */
+#define MAXTH 4 /* Number of threads to spawn */
+
+/*****************************************************************************
+ * Local prototypes.
+ *****************************************************************************/
+static int Stress ( vlc_object_t *, char *, char * );
+static void * Dummy ( vlc_object_t * );
+
+static int Signal ( vlc_object_t *, char *, char * );
+
+/*****************************************************************************
+ * Module descriptor.
+ *****************************************************************************/
+vlc_module_begin();
+ set_description( _("Miscellaneous stress tests") );
+ var_Create( p_module->p_libvlc, "stress", VLC_VAR_COMMAND );
+ var_Set( p_module->p_libvlc, "stress", (vlc_value_t)(void*)Stress );
+ var_Create( p_module->p_libvlc, "signal", VLC_VAR_COMMAND );
+ var_Set( p_module->p_libvlc, "signal", (vlc_value_t)(void*)Signal );
+vlc_module_end();
+
+/*****************************************************************************
+ * Stress: perform various tests
+ *****************************************************************************/
+static int Stress( vlc_object_t *p_this, char *psz_cmd, char *psz_arg )
+{
+ vlc_object_t **pp_objects;
+ mtime_t start;
+ char ** ppsz_name;
+ char * psz_blob;
+ int i, i_level;
+
+ if( *psz_arg )
+ {
+ i_level = atoi( psz_arg );
+ if( i_level <= 0 )
+ {
+ i_level = 1;
+ }
+ else if( i_level > 200 )
+ {
+ /* It becomes quite dangerous above 150 */
+ i_level = 200;
+ }
+ }
+ else
+ {
+ i_level = 10;
+ }
+
+ /* Allocate required data */
+ ppsz_name = malloc( MAXVAR * i_level * sizeof(char*) );
+ psz_blob = malloc( 20 * MAXVAR * i_level * sizeof(char) );
+ for( i = 0; i < MAXVAR * i_level; i++ )
+ {
+ ppsz_name[i] = psz_blob + 20 * i;
+ }
+
+ pp_objects = malloc( MAXOBJ * i_level * sizeof(void*) );
+
+ /*
+ * Test #1: objects
+ */
+ printf( "Test #1: objects\n" );
+
+ printf( " - creating %i objects\n", MAXOBJ * i_level );
+ start = mdate();
+ for( i = 0; i < MAXOBJ * i_level; i++ )
+ {
+ pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
+ }
+
+ printf( " - randomly looking up %i objects\n", MAXLOOK * i_level );
+ for( i = MAXLOOK * i_level; i--; )
+ {
+ int id = (int) (MAXOBJ * i_level * 1.0 * rand() / (RAND_MAX));
+ vlc_object_get( p_this, pp_objects[id]->i_object_id );
+ }
+
+ printf( " - destroying the objects (LIFO)\n" );
+ for( i = MAXOBJ * i_level; i--; )
+ {
+ vlc_object_destroy( pp_objects[i] );
+ }
+
+ printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
+
+ /*
+ * Test #2: integer variables
+ */
+ printf( "Test #2: integer variables\n" );
+
+ printf( " - creating %i integer variables\n", MAXVAR * i_level );
+ start = mdate();
+ for( i = 0; i < MAXVAR * i_level; i++ )
+ {
+ sprintf( ppsz_name[i], "foo-%04i-bar-%04x", i, i * 11 );
+ var_Create( p_this, ppsz_name[i], VLC_VAR_INTEGER );
+ }
+
+ printf( " - randomly assigning %i values\n", MAXSET * i_level );
+ for( i = 0; i < MAXSET * i_level; i++ )
+ {
+ int v = (int) (MAXVAR * i_level * 1.0 * rand() / (RAND_MAX));
+ var_Set( p_this, ppsz_name[v], (vlc_value_t)i );
+ }
+
+ printf( " - destroying the variables\n" );
+ for( i = 0; i < MAXVAR * i_level; i++ )
+ {
+ var_Destroy( p_this, ppsz_name[i] );
+ }
+
+ printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
+
+ /*
+ * Test #3: string variables
+ */
+ printf( "Test #3: string variables\n" );
+
+ printf( " - creating %i string variables\n", MAXVAR * i_level );
+ start = mdate();
+ for( i = 0; i < MAXVAR * i_level; i++ )
+ {
+ sprintf( ppsz_name[i], "foo-%04i-bar-%04x", i, i * 11 );
+ var_Create( p_this, ppsz_name[i], VLC_VAR_STRING );
+ }
+
+ printf( " - randomly assigning %i values\n", MAXSET * i_level );
+ for( i = 0; i < MAXSET * i_level; i++ )
+ {
+ int v = (int) (MAXVAR * i_level * 1.0 * rand() / (RAND_MAX));
+ var_Set( p_this, ppsz_name[v], (vlc_value_t)ppsz_name[v] );
+ }
+
+ printf( " - destroying the variables\n" );
+ for( i = 0; i < MAXVAR * i_level; i++ )
+ {
+ var_Destroy( p_this, ppsz_name[i] );
+ }
+
+ printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
+
+ /*
+ * Test #4: threads
+ */
+ printf( "Test #4: threads\n" );
+ start = mdate();
+
+ printf( " - spawning %i threads that will each create %i objects\n",
+ MAXTH * i_level, MAXOBJ/MAXTH );
+ for( i = 0; i < MAXTH * i_level; i++ )
+ {
+ pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
+ vlc_thread_create( pp_objects[i], "foo", Dummy, 0, VLC_TRUE );
+ }
+
+ printf( " - killing the threads (LIFO)\n" );
+ for( i = MAXTH * i_level; i--; )
+ {
+ pp_objects[i]->b_die = VLC_TRUE;
+ vlc_thread_join( pp_objects[i] );
+ vlc_object_destroy( pp_objects[i] );
+ }
+
+ printf( "done (%fs).\n", (mdate() - start) / 1000000.0 );
+
+ /* Free required data */
+ free( pp_objects );
+ free( psz_blob );
+ free( ppsz_name );
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Dummy: used by test, creates objects and then do nothing.
+ *****************************************************************************/
+static void * Dummy( vlc_object_t *p_this )
+{
+ int i;
+ vlc_object_t *pp_objects[MAXOBJ/MAXTH];
+
+ for( i = 0; i < MAXOBJ/MAXTH; i++ )
+ {
+ pp_objects[i] = vlc_object_create( p_this, VLC_OBJECT_GENERIC );
+ }
+
+ vlc_thread_ready( p_this );
+
+ while( !p_this->b_die )
+ {
+ msleep( 1000 );
+ }
+
+ for( i = MAXOBJ/MAXTH; i--; )
+ {
+ vlc_object_destroy( pp_objects[i] );
+ }
+
+ return NULL;
+}
+
+/*****************************************************************************
+ * Signal: send a signal to the current thread.
+ *****************************************************************************/
+static int Signal( vlc_object_t *p_this, char *psz_cmd, char *psz_arg )
+{
+ raise( atoi(psz_arg) );
+ return VLC_SUCCESS;
+}
+
--
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