diff packages/kernel/current/tests/ksem1.c @ 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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+++ b/packages/kernel/current/tests/ksem1.c
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+/*=================================================================
+//
+//        ksem1.c
+//
+//        C API semaphore test 1
+//
+//==========================================================================
+//####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:          1998-03-20
+// Description:   Tests basic semaphore functionality.
+//####DESCRIPTIONEND####
+*/
+
+#include <cyg/kernel/kapi.h>
+
+#include <cyg/infra/testcase.h>
+
+#ifdef CYGFUN_KERNEL_API_C
+
+#include "testaux.h"
+
+#define NTHREADS 2
+#define STACKSIZE 4096
+
+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_ucount32 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_ucount32 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_PASS_FINISH("Kernel C API layer disabled");
+}
+#endif /* def CYGFUN_KERNEL_API_C */
+
+/* EOF ksem1.c */