URL
https://opencores.org/ocsvn/openrisc/openrisc/trunk
Subversion Repositories openrisc
[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [kernel/] [v2_0/] [tests/] [mutex2.cxx] - Rev 606
Go to most recent revision | Compare with Previous | Blame | View Log
//========================================================================== // // mutex1.cxx // // 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): nickg // Contributors: nickg // Date: 1999-02-19 // Description: Tests mutex release functionality //####DESCRIPTIONEND#### #include <pkgconf/kernel.h> #include <cyg/kernel/sched.hxx> // Cyg_Scheduler::start() #include <cyg/kernel/thread.hxx> // Cyg_Thread #include <cyg/kernel/mutex.hxx> #include <cyg/infra/testcase.h> #include <cyg/kernel/sched.inl> #include <cyg/kernel/thread.inl> // ------------------------------------------------------------------------ #if !defined(CYGPKG_KERNEL_SMP_SUPPORT) // ------------------------------------------------------------------------ #define NTHREADS 4 #include "testaux.hxx" #include "testaux.h" // ------------------------------------------------------------------------ static Cyg_Mutex m0, m1; static Cyg_Condition_Variable cvar0( m0 ), cvar1( m0 ), cvar2( m1 ); volatile int thread_state[NTHREADS]; // ------------------------------------------------------------------------ // This thread is meant to get hung up trying to re-acquire m0 // after waiting on the cv. static void entry0( CYG_ADDRWORD data ) { CYG_TEST_INFO( "thread0: lock mutex 0"); m0.lock(); CYG_TEST_INFO( "thread0: wait cvar 0"); thread_state[data] = 1; cvar0.wait(); thread_state[data] = 2; CYG_TEST_INFO( "thread0: woke from cvar 0"); CYG_TEST_INFO( "thread0: unlock mutex 0"); m0.unlock(); thread_state[data] = 3; CYG_TEST_INFO( "thread0: exit"); thread[data]->exit(); } // ------------------------------------------------------------------------ // This thread is meant to claim and keep m0. static void entry1( CYG_ADDRWORD data ) { CYG_TEST_INFO( "thread1: lock mutex 0"); m0.lock(); CYG_TEST_INFO( "thread1: lock mutex 1"); thread_state[data] = 1; m1.lock(); thread_state[data] = 2; CYG_TEST_INFO( "thread1: wait cvar 2"); cvar2.wait(); thread_state[data] = 3; CYG_TEST_INFO( "thread1: woke from cvar 2"); CYG_TEST_INFO( "thread1: unlock mutex 1"); m1.unlock(); thread_state[data] = 4; CYG_TEST_INFO( "thread1: unlock m0"); m0.unlock(); thread_state[data] = 5; CYG_TEST_INFO( "thread1: exit"); thread[data]->exit(); } // ------------------------------------------------------------------------ // This thread is meant to get hung trying to acquire m0, and then get // released out of it by thread3. static void entry2( CYG_ADDRWORD data ) { CYG_TEST_INFO( "thread2: lock mutex 0"); thread_state[data] = 1; if( m0.lock() ) { thread_state[data] = 2; CYG_TEST_INFO( "thread2: lock mutex 0 - returned TRUE"); CYG_TEST_FAIL_FINISH(" m0.lock() returned TRUE" ); } else { thread_state[data] = 3; CYG_TEST_INFO( "thread2: lock mutex 0 - returned FALSE"); } CYG_TEST_INFO( "thread2: exit"); thread[data]->exit(); } // ------------------------------------------------------------------------ static void entry3( CYG_ADDRWORD data ) { CHECK( thread_state[0] == 1 ); CHECK( thread_state[1] == 2 ); CHECK( thread_state[2] == 1 ); CYG_TEST_INFO( "thread3: signal cvar 0"); cvar0.signal(); CHECK( thread_state[0] == 1 ); CHECK( thread_state[1] == 2 ); CHECK( thread_state[2] == 1 ); CYG_TEST_INFO( "thread3: release mutex 0"); m0.release(); CHECK( thread_state[0] == 1 ); CHECK( thread_state[1] == 2 ); CHECK( thread_state[2] == 3 ); CYG_TEST_INFO( "thread3: signal cvar 2"); cvar2.signal(); CHECK( thread_state[0] == 3 ); CHECK( thread_state[1] == 5 ); CHECK( thread_state[2] == 3 ); CYG_TEST_PASS_FINISH( "mutex2 finished OK"); CYG_TEST_INFO( "thread3: exit"); thread[data]->exit(); } // ------------------------------------------------------------------------ void mutex2_main( void ) { CYG_TEST_INIT(); new_thread(entry0, 0); new_thread(entry1, 1); new_thread(entry2, 2); new_thread(entry3, 3); // Set priorities from the top to prevent two threads getting // the same priority: this causes an ASSERT on some configurations. thread[3]->set_priority( 5 ); thread[2]->set_priority( 4 ); thread[1]->set_priority( 3 ); thread[0]->set_priority( 2 ); Cyg_Scheduler::start(); CYG_TEST_FAIL_FINISH("Not reached"); } // ------------------------------------------------------------------------ externC void cyg_start( void ) { #ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG cyg_hal_invoke_constructors(); #endif mutex2_main(); } // ------------------------------------------------------------------------ #else // CYGPKG_KERNEL_SMP_SUPPORT // ------------------------------------------------------------------------ externC void cyg_start( void ) { CYG_TEST_INIT(); CYG_TEST_PASS_FINISH("Mutex2 test requires:\n" "!defined(CYGPKG_KERNEL_SMP_SUPPORT)\n"); } // ------------------------------------------------------------------------ #endif // CYGPKG_KERNEL_SMP_SUPPORT // ------------------------------------------------------------------------ // EOF mutex2.cxx
Go to most recent revision | Compare with Previous | Blame | View Log