Subversion Repositories HelenOS

Rev

Rev 2309 | Rev 2400 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  1. /*
  2.  * Copyright (c) 2007 Jan Hudecek
  3.  * Copyright (c) 2005 Jakub Jermar
  4.  * All rights reserved.
  5.  *
  6.  * Redistribution and use in source and binary forms, with or without
  7.  * modification, are permitted provided that the following conditions
  8.  * are met:
  9.  *
  10.  * - Redistributions of source code must retain the above copyright
  11.  *   notice, this list of conditions and the following disclaimer.
  12.  * - Redistributions in binary form must reproduce the above copyright
  13.  *   notice, this list of conditions and the following disclaimer in the
  14.  *   documentation and/or other materials provided with the distribution.
  15.  * - The name of the author may not be used to endorse or promote products
  16.  *   derived from this software without specific prior written permission.
  17.  *
  18.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28.  */
  29.  
  30. #include <synch/rcu.h>
  31. #include <print.h>
  32. #include <test.h>
  33. #include <arch/types.h>
  34. #include <proc/tasklet.h>
  35. #include <arch/barrier.h>
  36. #include <arch.h>
  37. #include <preemption.h>
  38. bool gquiet;
  39. bool called;
  40.  
  41. static void callback(void* data)
  42. {
  43.     if (!gquiet)
  44.         printf("callback called\n");
  45.     called = true;
  46. }
  47. char * test_rcu1(bool quiet)
  48. {
  49.     gquiet = quiet;
  50.     called = false;
  51.     int* p;
  52.     rcu_read_lock();
  53.     rcu_assign_pointer(p,malloc(sizeof(int),0));
  54.     if (!quiet)
  55.         printf("p:%x\n",rcu_dereference_pointer(p));
  56.     rcu_read_unlock();
  57.     rcu_sync_callback(&callback, NULL);
  58.     if (!quiet)
  59.         printf("Callback scheduled\n");
  60.     while(!called);
  61.     rcu_synchronize();
  62.     if (!quiet)
  63.         printf("Synchronized\n");
  64.     return NULL;
  65.  
  66. }
  67.  
  68.  
  69.