diff packages/kernel/current/tests/thread2.cxx @ 0:3111d98ba7b3 ecos-v1_1-release

Initial commit of eCos version 1.1
author jlarmour
date Tue, 11 May 1999 11:16:07 +0000
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children 443894e2e912
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+//==========================================================================
+//
+//        thread2.cxx
+//
+//        Thread test 2
+//
+//==========================================================================
+//####COPYRIGHTBEGIN####
+//
+// -------------------------------------------
+// The contents of this file are subject to the Cygnus eCos Public License
+// Version 1.0 (the "License"); you may not use this file except in
+// compliance with the License.  You may obtain a copy of the License at
+// http://sourceware.cygnus.com/ecos
+// 
+// Software distributed under the License is distributed on an "AS IS"
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
+// License for the specific language governing rights and limitations under
+// the License.
+// 
+// The Original Code is eCos - Embedded Cygnus Operating System, released
+// September 30, 1998.
+// 
+// The Initial Developer of the Original Code is Cygnus.  Portions created
+// by Cygnus are Copyright (C) 1998 Cygnus Solutions.  All Rights Reserved.
+// -------------------------------------------
+//
+//####COPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):     dsm
+// Contributors:    dsm
+// Date:          1998-02-19
+// Description:
+//    tests scheduler & threads & priorities
+//    + create multiple threads with various priorities
+//    + check highest priority running thread is always running
+//    + check next highest runs when highest suspended
+//    + check several threads of equal priority share time
+//      (only !CYG_SCHED_UNIQUE_PRIORITIES)
+//    + check other threads are starved
+//    + check setting priority dynamically causes a thread to
+//      become/stay current/non-current
+// Omissions:
+//     check yield
+//     check can set threads with min and max priority
+// Options:
+//    CYG_SCHED_UNIQUE_PRIORITIES
+//    CYGIMP_THREAD_PRIORITY
+//    CYGNUM_KERNEL_SCHED_PRIORITIES
+//    CYGSEM_KERNEL_SCHED_BITMAP
+//    CYGSEM_KERNEL_SCHED_MLQUEUE
+//####DESCRIPTIONEND####
+
+#include <pkgconf/kernel.h>
+
+#include <cyg/kernel/thread.hxx>
+#include <cyg/kernel/thread.inl>
+#include <cyg/kernel/sched.hxx>
+#include <cyg/kernel/mutex.hxx>
+#include <cyg/kernel/sema.hxx>
+
+#include <cyg/infra/testcase.h>
+
+#include <cyg/kernel/sched.inl>
+
+#include "testaux.hxx"
+
+#ifndef CYGIMP_THREAD_PRIORITY
+#error "Test requires thread priorities"
+#endif
+
+#define STACKSIZE 4096
+
+static char stack[3][STACKSIZE];
+
+static Cyg_Counting_Semaphore s0, s1, s2;
+
+static volatile cyg_ucount8 q = 0;
+
+static Cyg_Thread *thread0, *thread1, *thread2;
+
+static char thread[3][sizeof(Cyg_Thread)];
+
+inline void *operator new(size_t size, void *ptr) { return ptr; };
+
+
+static void entry0( CYG_ADDRWORD data )
+{
+    CHECK(  0 == q++ );
+    s0.wait();
+    CHECK(  3 == q++ );
+    s1.post();
+    CHECK(  4 == q++ );
+    s0.wait();
+    s0.wait();
+    CYG_TEST_PASS_FINISH("Thread 2 OK");
+}
+
+static void entry1( CYG_ADDRWORD data )
+{
+    CHECK(  1 == q++ );
+    s1.wait();
+    CHECK(  5 == q++ );
+    thread0->set_priority(9);
+    s0.post();
+    CHECK(  6 == q++ );
+    thread2->set_priority(3);
+    CHECK(  8 == q++ );
+    s2.post();
+    CHECK( 12 == q++ );
+    CHECK( 9 == thread0->get_priority() );
+    CHECK( 6 == thread1->get_priority() );
+    CHECK( 7 == thread2->get_priority() );
+    q = 100;
+#if !(CYG_SCHED_UNIQUE_PRIORITIES) && defined(CYGSEM_KERNEL_SCHED_TIMESLICE)
+    thread2->set_priority(6);
+    CHECK( 6 == thread1->get_priority() );
+    CHECK( 6 == thread2->get_priority() );
+
+    while ( 100 == q )
+        ;
+    CHECK( 101 == q++ );
+    s1.wait();
+    CHECK( 103 == q++ );
+#endif
+    s0.post();
+    s1.wait();
+}
+
+static void entry2( CYG_ADDRWORD data )
+{
+    CHECK(  2 == q++ );
+    s0.post();
+    CHECK(  7 == q++ );
+    s2.wait();
+    CHECK(  9 == q++ );
+    thread1->set_priority(6);
+    CHECK( 10 == q++ );
+    thread2->set_priority(2);
+    CHECK( 11 == q++ );
+    thread2->set_priority(7);
+
+#if !(CYG_SCHED_UNIQUE_PRIORITIES) && defined(CYGSEM_KERNEL_SCHED_TIMESLICE)
+    CHECK( 6 == thread1->get_priority() );
+    CHECK( 6 == thread2->get_priority() );
+
+    CHECK( 100 == q++ );
+    while ( 101 == q )
+        ;
+    CHECK( 102 == q++ );
+    s1.post();
+#endif
+    s0.post();
+    s2.wait();
+}
+
+
+void thread2_main( void )
+{
+    CYG_TEST_INIT();
+    
+    thread0 = new((void *)&thread[0])
+            Cyg_Thread(entry0, 0, STACKSIZE, (CYG_ADDRESS)stack[0] );
+    thread1 = new((void *)&thread[1])
+            Cyg_Thread(entry1, 1, STACKSIZE, (CYG_ADDRESS)stack[1] );
+    thread2 = new((void *)&thread[2])
+            Cyg_Thread(entry2, 2, STACKSIZE, (CYG_ADDRESS)stack[2] );
+
+    thread0->resume();
+    thread1->resume();
+    thread2->resume();
+
+    thread0->set_priority(5);
+    thread1->set_priority(6);
+    thread2->set_priority(7);
+
+    if( 9 >= CYG_THREAD_MIN_PRIORITY )
+        CYG_TEST_FAIL_FINISH("Test requires priorities up to 9");
+
+    if( 2 <= CYG_THREAD_MAX_PRIORITY )
+        CYG_TEST_FAIL_FINISH("Test requires priorities as low as 2");
+
+    Cyg_Scheduler::start();
+
+    CYG_TEST_FAIL_FINISH("Unresolved");
+}
+
+externC void
+cyg_start( void )
+{
+    thread2_main();
+}
+
+// EOF thread2.cxx