/*================================================================= // // ksem1.c // // C API semaphore 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: 1998-03-20 // Description: Tests basic semaphore functionality. //####DESCRIPTIONEND#### */ #include // CYGNUM_HAL_STACK_SIZE_TYPICAL #include #include #ifdef CYGFUN_KERNEL_API_C #include "testaux.h" #define NTHREADS 2 #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_sem_t s0, s1, s2; static volatile cyg_ucount8 q = 0; static void entry0( cyg_addrword_t data ) { cyg_count32 val; cyg_semaphore_wait(&s0); CHECK( 1 == q++ ); cyg_semaphore_post(&s1); cyg_semaphore_wait(&s0); CHECK( 3 == q++ ); cyg_semaphore_peek(&s0, &val); CHECK( 0 == val); CHECK( ! cyg_semaphore_trywait(&s0) ); cyg_semaphore_post(&s0); CHECK( 4 == q++ ); cyg_semaphore_peek(&s0, &val); CHECK( 1 == val); cyg_semaphore_post(&s0); cyg_semaphore_peek(&s0, &val); CHECK( 2 == val); cyg_semaphore_post(&s1); cyg_semaphore_peek(&s2, &val); CHECK( 0 == val); cyg_semaphore_wait(&s2); CHECK( 6 == q++ ); CYG_TEST_PASS_FINISH("Kernel C API Semaphore 1 OK"); } static void entry1( cyg_addrword_t data ) { cyg_count32 val; cyg_semaphore_peek(&s1, &val); CHECK( 2 == val); cyg_semaphore_wait(&s1); cyg_semaphore_peek(&s1, &val); CHECK( 1 == val); cyg_semaphore_wait(&s1); CHECK( 0 == q++ ); cyg_semaphore_peek(&s0, &val); CHECK( 0 == val); cyg_semaphore_post(&s0); cyg_semaphore_wait(&s1); CHECK( 2 == q++ ); cyg_semaphore_post(&s0); cyg_semaphore_wait(&s1); CHECK( 5 == q++ ); cyg_semaphore_peek(&s0, &val); CHECK( 2 == val); CHECK( cyg_semaphore_trywait(&s0) ); cyg_semaphore_peek(&s0, &val); CHECK( 1 == val); CHECK( cyg_semaphore_trywait(&s0) ); cyg_semaphore_peek(&s0, &val); CHECK( 0 == val); cyg_semaphore_post(&s2); cyg_semaphore_wait(&s0); CYG_TEST_FAIL_FINISH("Not reached"); } void ksem1_main( void ) { CYG_TEST_INIT(); cyg_semaphore_init( &s0, 0); cyg_semaphore_init( &s1, 2); cyg_semaphore_init( &s2, 0); cyg_thread_create(4, entry0 , (cyg_addrword_t)0, "ksem1-0", (void *)stack[0], STACKSIZE,&thread[0], &thread_obj[0]); cyg_thread_resume(thread[0]); cyg_thread_create(4, entry1 , (cyg_addrword_t)1, "ksem1-1", (void *)stack[1], STACKSIZE, &thread[1], &thread_obj[1]); cyg_thread_resume(thread[1]); cyg_scheduler_start(); CYG_TEST_FAIL_FINISH("Not reached"); } externC void cyg_start( void ) { ksem1_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 ksem1.c */