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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [kernel/] [v2_0/] [tests/] [kmutex1.c] - Rev 616
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/*================================================================= // // kmutex1.c // // Kernel C API Mutex test 1 // //========================================================================== //####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. // // eCos 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 or (at your option) any later version. // // eCos 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 eCos; if not, write to the Free Software Foundation, Inc., // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. // // As a special exception, if other files instantiate templates or use macros // or inline functions from this file, or you compile this file and link it // with other works to produce a work based on this file, this file does not // by itself cause the resulting work to be covered by the GNU General Public // License. However the source code for this file must still be made available // in accordance with section (3) of the GNU General Public License. // // This exception does not invalidate any other reasons why a work based on // this file might be covered by the GNU General Public License. // // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. // at http://sources.redhat.com/ecos/ecos-license/ // ------------------------------------------- //####ECOSGPLCOPYRIGHTEND#### //========================================================================== //#####DESCRIPTIONBEGIN#### // // Author(s): dsm // Contributors: dsm // Date: 1998-03-23 // Description: Tests basic mutex functionality. // Omissions: Timed wait. //####DESCRIPTIONEND#### */ #include <cyg/hal/hal_arch.h> // CYGNUM_HAL_STACK_SIZE_TYPICAL #include <cyg/kernel/kapi.h> #include <cyg/infra/testcase.h> #ifdef CYGFUN_KERNEL_API_C #include "testaux.h" #define NTHREADS 3 #define STACKSIZE CYGNUM_HAL_STACK_SIZE_TYPICAL static cyg_handle_t thread[NTHREADS]; static cyg_thread thread_obj[NTHREADS]; static char stack[NTHREADS][STACKSIZE]; static cyg_mutex_t m0, m1; static cyg_cond_t cvar0, cvar1, cvar2; static cyg_ucount8 m0d=0, m1d=0; static void finish( cyg_ucount8 t ) { cyg_mutex_lock( &m1 ); { m1d |= 1<<t; if( 0x7 == m1d ) CYG_TEST_PASS_FINISH("Kernel C API Mutex 1 OK"); cyg_cond_wait( &cvar2 ); } /* cyg_mutex_unlock( &m1 ); */ CYG_TEST_FAIL_FINISH("Not reached"); } static void entry0( cyg_addrword_t data ) { cyg_mutex_lock( &m0 ); { CHECK( ! cyg_mutex_trylock( &m0 ) ); cyg_mutex_lock( &m1 ); { CHECK( ! cyg_mutex_trylock( &m0 ) ); } cyg_mutex_unlock( &m1 ); } cyg_mutex_unlock( &m0 ); cyg_mutex_lock( &m0 ); { while ( 0 == m0d ) cyg_cond_wait( &cvar0 ); CHECK( 1 == m0d++ ); cyg_cond_signal( &cvar0 ); while ( 4 != m0d ) cyg_cond_wait( &cvar1 ); CHECK( 4 == m0d ); } cyg_mutex_unlock( &m0 ); finish( (cyg_ucount8)data ); } static void entry1( cyg_addrword_t data ) { cyg_mutex_lock( &m0 ); { CHECK( cyg_mutex_trylock( &m1 ) ); { } cyg_mutex_unlock( &m1 ); } cyg_mutex_unlock( &m0 ); cyg_mutex_lock( &m0 ); { CHECK( 0 == m0d++ ); cyg_cond_broadcast( &cvar0 ); } cyg_mutex_unlock( &m0 ); cyg_mutex_lock( &m0 ); { while( 1 == m0d ) cyg_cond_wait( &cvar0 ); CHECK( 2 == m0d++ ); cyg_cond_signal( &cvar0 ); while( 3 == m0d ) cyg_cond_wait( &cvar1 ); } cyg_mutex_unlock( &m0 ); finish( (cyg_ucount8)data ); } static void entry2( cyg_addrword_t data ) { cyg_mutex_lock( &m0 ); { while( 3 != m0d ) { cyg_cond_wait( &cvar0 ); } CHECK( 3 == m0d++ ); cyg_cond_broadcast( &cvar1 ); } cyg_mutex_unlock( &m0 ); finish( (cyg_ucount8)data ); } void kmutex1_main( void ) { CYG_TEST_INIT(); cyg_thread_create(4, entry0 , (cyg_addrword_t)0, "kmutex1-0", (void *)stack[0], STACKSIZE, &thread[0], &thread_obj[0]); cyg_thread_resume(thread[0]); cyg_thread_create(4, entry1 , (cyg_addrword_t)1, "kmutex1-1", (void *)stack[1], STACKSIZE, &thread[1], &thread_obj[1]); cyg_thread_resume(thread[1]); cyg_thread_create(4, entry2 , (cyg_addrword_t)2, "kmutex1-2", (void *)stack[2], STACKSIZE, &thread[2], &thread_obj[2]); cyg_thread_resume(thread[2]); cyg_mutex_init( &m0 ); cyg_mutex_init( &m1 ); cyg_cond_init( &cvar0, &m0 ); cyg_cond_init( &cvar1, &m0 ); cyg_cond_init( &cvar2, &m1 ); cyg_scheduler_start(); CYG_TEST_FAIL_FINISH("Not reached"); } externC void cyg_start( void ) { kmutex1_main(); } #else /* def CYGFUN_KERNEL_API_C */ externC void cyg_start( void ) { CYG_TEST_INIT(); CYG_TEST_NA("Kernel C API layer disabled"); } #endif /* def CYGFUN_KERNEL_API_C */ /* EOF kmutex1.c */
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