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From i...@apache.org
Subject cvs commit: apr/test testatomic.c Makefile.in
Date Tue, 12 Feb 2002 21:49:32 GMT
ianh        02/02/12 13:49:32

  Modified:    test     Makefile.in
  Added:       test     testatomic.c
  Log:
  tester for apr_atomic
  
  Revision  Changes    Path
  1.78      +4 -0      apr/test/Makefile.in
  
  Index: Makefile.in
  ===================================================================
  RCS file: /home/cvs/apr/test/Makefile.in,v
  retrieving revision 1.77
  retrieving revision 1.78
  diff -u -r1.77 -r1.78
  --- Makefile.in	12 Jan 2002 19:58:42 -0000	1.77
  +++ Makefile.in	12 Feb 2002 21:49:32 -0000	1.78
  @@ -37,6 +37,7 @@
   	testsleep@EXEEXT@ \
   	testrand@EXEEXT@ \
   	testdup@EXEEXT@ \
  +	testatomic@EXEEXT@ \
   	testpools@EXEEXT@
   
   
  @@ -164,6 +165,9 @@
   
   testsleep@EXEEXT@: testsleep.lo $(LOCAL_LIBS)
   	$(LINK) testsleep.lo $(LOCAL_LIBS) $(ALL_LIBS)
  +
  +testatomic@EXEEXT@: testatomic.lo $(LOCAL_LIBS)
  +	$(LINK) testatomic.lo $(LOCAL_LIBS) $(ALL_LIBS)
   
   testdup@EXEEXT@: testdup.lo $(LOCAL_LIBS)
   	$(LINK) testdup.lo $(LOCAL_LIBS) $(ALL_LIBS)
  
  
  
  1.1                  apr/test/testatomic.c
  
  Index: testatomic.c
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2000-2001 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution,
   *    if any, must include the following acknowledgment:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" must
   *    not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  #include "apr_thread_proc.h"
  #include "apr_lock.h"
  #include "apr_errno.h"
  #include "apr_general.h"
  #include "apr_atomic.h"
  #include "errno.h"
  #include <stdio.h>
  #include <stdlib.h>
  #include "apr_time.h"
  #if APR_HAVE_UNISTD_H
  #include <unistd.h>
  #endif
  
  #ifndef WIN32
  #include <pthread.h>
  #endif
  #if !APR_HAS_THREADS
  int main(void)
  {
      fprintf(stderr,
              "This program won't work on this platform because there is no "
              "support for threads.\n");
      return 0;
  }
  #else /* !APR_HAS_THREADS */
  
  void * APR_THREAD_FUNC thread_func_traditional(apr_thread_t *thd, void *data);
  void * APR_THREAD_FUNC thread_func_atomic(apr_thread_t *thd, void *data);
  void * APR_THREAD_FUNC thread_func_none(apr_thread_t *thd, void *data);
  
  apr_lock_t *thread_lock;
  apr_pool_t *context;
  apr_thread_once_t *control = NULL;
  volatile long x = 0; /* traditional locks */
  volatile long y = 0; /* atomic locks */
  volatile long z = 0; /* no locks */
  int value = 0;
  apr_status_t exit_ret_val = 123; /* just some made up number to check on later */
  
  #define NUM_THREADS 10
  #define NUM_ITERATIONS 20000
  static void init_func(void)
  {
      value++;
  }
  
  void * APR_THREAD_FUNC thread_func_traditional(apr_thread_t *thd, void *data)
  {
      int i;
  
      apr_thread_once(control, init_func);
  
      for (i = 0; i < NUM_ITERATIONS; i++) {
          apr_lock_acquire(thread_lock);
          x++;
          apr_lock_release(thread_lock);
      }
      apr_thread_exit(thd, exit_ret_val);
      return NULL;
  } 
  void * APR_THREAD_FUNC thread_func_atomic(apr_thread_t *thd, void *data)
  {
      int i;
  
      apr_thread_once(control, init_func);
  
      for (i = 0; i < NUM_ITERATIONS ; i++) {
          apr_atomic_inc( &y );
      }
      apr_thread_exit(thd, exit_ret_val);
      return NULL;
  }
  void * APR_THREAD_FUNC thread_func_none(apr_thread_t *thd, void *data)
  {
      int i;
  
      apr_thread_once(control, init_func);
  
      for (i = 0; i < NUM_ITERATIONS ; i++) {
          z++;
      }
      apr_thread_exit(thd, exit_ret_val);
      return NULL;
  }
  int main(void)
  {
      apr_thread_t *t1[NUM_THREADS];
      apr_thread_t *t2[NUM_THREADS];
      apr_thread_t *t3[NUM_THREADS];
      apr_status_t r1[NUM_THREADS]; 
      apr_status_t r2[NUM_THREADS]; 
      apr_status_t r3[NUM_THREADS];
      apr_status_t s1[NUM_THREADS]; 
      apr_status_t s2[NUM_THREADS];
      apr_status_t s3[NUM_THREADS];
      apr_status_t rv;
      int i;
  
      apr_initialize();
  
      printf("APR Simple Thread Test\n======================\n\n");
      
  #ifndef WIN32
      pthread_setconcurrency(8);
  #endif
      printf("%-60s", "Initializing the context"); 
      if (apr_pool_create(&context, NULL) != APR_SUCCESS) {
          fflush(stdout);
          fprintf(stderr, "Failed.\nCould not initialize\n");
          exit(-1);
      }
      printf("OK\n");
  
      apr_thread_once_init(&control, context);
  
      printf("%-60s", "Initializing the lock"); 
      rv = apr_lock_create(&thread_lock, APR_MUTEX, APR_INTRAPROCESS, 
                           APR_LOCK_DEFAULT, "lock.file", context); 
      if (rv != APR_SUCCESS) {
          fflush(stdout);
          fprintf(stderr, "Failed\nCould not create lock\n");
          exit(-1);
      }
      rv = apr_atomic_init( context);
  
      printf("OK\n");
  
      printf("%-60s", "Starting all the threads"); 
      for (i=0;i<NUM_THREADS;i++) {
          r1[i] = apr_thread_create(&t1[i], NULL, thread_func_traditional, NULL, context);
          r2[i] = apr_thread_create(&t2[i], NULL, thread_func_atomic,      NULL, context);
          r3[i] = apr_thread_create(&t3[i], NULL, thread_func_none,        NULL, context);
          if (r1[i] != APR_SUCCESS || r2[i] != APR_SUCCESS || 
              r3[i] != APR_SUCCESS ) {
              fflush(stdout);
              fprintf(stderr, "Failed\nError starting thread in group %d\n",i);
              exit(-1);
          }
      }
      printf("OK\n");
  
      printf("%-60s", "Waiting for threads to exit");
      fflush(stdout);
      for (i=0;i<NUM_THREADS;i++) {
          apr_thread_join(&s1[i], t1[i]);
          apr_thread_join(&s2[i], t2[i]);
          apr_thread_join(&s3[i], t3[i]);
          if (s1[i] != exit_ret_val || s2[i] != exit_ret_val ||
              s3[i] != exit_ret_val ) {
                  fprintf(stderr, 
                          "Invalid return value\nGot %d/%d/%d, but expected %d for all \n",
                          s1[i], s2[i], s3[i],  exit_ret_val);
  
          }
  
      }
      printf("OK\n");
  
      printf("%-60s", "Checking if locks worked"); 
      if (x != NUM_THREADS*NUM_ITERATIONS) {
          fflush(stdout);
          fprintf(stderr, "No!\nThe locks didn't work????  x = %ld instead of %ld\n", x,NUM_THREADS*NUM_ITERATIONS);
      }
      else
          printf("OK\n");
      printf("%-60s", "Checking if atomic worked"); 
      if (apr_atomic_read(&y) != NUM_THREADS*NUM_ITERATIONS) {
          fflush(stdout);
          fprintf(stderr, "No!\nThe atomics didn't work????  y = %ld instead of %ld\n", y,NUM_THREADS*NUM_ITERATIONS);
      }
      else
          printf("OK\n");
      printf("%-60s", "Checking if nolock worked"); 
      if ( z != NUM_THREADS*NUM_ITERATIONS) {
          fflush(stdout);
          fprintf(stderr, "no suprise\nThe no-locks didn't work????  z = %ld instead of %ld\n",
z, NUM_THREADS*NUM_ITERATIONS);
      }
      else
          printf("OK\n");
  
      printf("%-60s", "Checking if apr_thread_once worked");
      if (value != 1) {
          fflush(stdout);
          fprintf(stderr, "Failed!\napr_thread_once must not have worked, "
                  "value is %d instead of 1\n", value);
          exit(-1);
      }
      printf("OK\n");
  
      return 0;
  }
  
  #endif /* !APR_HAS_THREADS */
  
  
  

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