source: rtems/testsuites/psxtmtests/psxtmrwlock07/init.c @ 8fbe2e6

4.11
Last change on this file since 8fbe2e6 was 8fbe2e6, checked in by Joel Sherrill <joel.sherrill@…>, on Sep 4, 2014 at 1:59:49 PM

Use correct prototype of benchmark_timer_read()

This change starts with removing the effectively empty file
timerdrv.h. The prototypes for benchmark_timer_XXX() were in
btimer.h which was not universally used. Thus every use of
timerdrv.h had to be changed to btimer.h. Then the prototypes
for benchmark_timer_read() had to be adjusted to return
benchmark_timer_t rather than int or uint32_t.

I took this opportunity to also correct the file headers to
separate the copyright from the file description comments which
is needed to ensure the copyright isn't propagated into Doxygen
output.

  • Property mode set to 100644
File size: 3.7 KB
Line 
1/*
2 *  COPYRIGHT (c) 1989-2013.
3 *  On-Line Applications Research Corporation (OAR).
4 *
5 *  The license and distribution terms for this file may be
6 *  found in the file LICENSE in this distribution or at
7 *  http://www.rtems.org/license/LICENSE.
8 */
9
10#ifdef HAVE_CONFIG_H
11#include "config.h"
12#endif
13
14#include <coverhd.h>
15#include <tmacros.h>
16#include <timesys.h>
17#include "test_support.h"
18#include <pthread.h>
19#include <sched.h>
20#include <rtems/btimer.h>
21
22const char rtems_test_name[] = "PSXTMRWLOCK 07";
23
24/* forward declarations to avoid warnings */
25void *POSIX_Init(void *argument);
26void *Middle(void *argument);
27void *Low(void *argument);
28
29pthread_rwlock_t     rwlock;
30
31void *Low(
32  void *argument
33)
34{
35  int      status;
36  benchmark_timer_t end_time;
37
38  /* write locking */
39    status = pthread_rwlock_wrlock(&rwlock);
40  end_time = benchmark_timer_read();
41
42  rtems_test_assert( status == 0 );
43
44  put_time(
45    "pthread_rwlock_unlock: thread waiting preempt",
46    end_time,
47    OPERATION_COUNT,
48    0,
49    0
50  );
51
52  TEST_END();
53  rtems_test_exit( 0 );
54  return NULL;
55}
56
57void *Middle(
58  void *argument
59)
60{
61  int status;
62
63  /* write locking */
64  status =  pthread_rwlock_wrlock(&rwlock);
65  rtems_test_assert( status == 0 );
66
67    /* thread switch occurs */
68
69    status = pthread_rwlock_unlock(&rwlock); /*  unlock the rwlock */
70  rtems_test_assert( status == 0 );
71    /* thread switch occurs */
72
73  /* should never return */
74  rtems_test_assert( FALSE );
75  return NULL;
76}
77
78void *POSIX_Init(
79  void *argument
80)
81{
82  int                 i;
83  int                 status;
84  pthread_t           threadId;
85  pthread_attr_t      attr;
86  struct sched_param  param;
87  pthread_rwlockattr_t rw_attr;
88
89  TEST_BEGIN();
90
91  /*
92   * Deliberately create the lock BEFORE the threads.  This way the
93   * threads should preempt this thread and block as they are created.
94   */
95  status = pthread_rwlockattr_init( &rw_attr );
96  rtems_test_assert( status == 0 );
97  status = pthread_rwlock_init( &rwlock, &rw_attr );
98  rtems_test_assert( status == 0 );
99
100  /*
101   * Obtain the lock so the threads will block.
102   */
103  status = pthread_rwlock_wrlock(&rwlock);
104  rtems_test_assert( status == 0 );
105
106  /*
107   * Now lower our priority
108   */
109  status = pthread_attr_init( &attr );
110  rtems_test_assert( status == 0 );
111
112  status = pthread_attr_setinheritsched( &attr, PTHREAD_EXPLICIT_SCHED );
113  rtems_test_assert( status == 0 );
114
115  status = pthread_attr_setschedpolicy( &attr, SCHED_RR );
116  rtems_test_assert( status == 0 );
117
118  param.sched_priority = 2;
119  status = pthread_attr_setschedparam( &attr, &param );
120  rtems_test_assert( status == 0 );
121
122  /*
123   * And create rest of threads as more important than we are.  They
124   * will preempt us as they are created and block.
125   */
126  for ( i=0 ; i < OPERATION_COUNT ; i++ ) {
127
128    param.sched_priority = 3 + i;
129    status = pthread_attr_setschedparam( &attr, &param );
130    rtems_test_assert( status == 0 );
131
132    status = pthread_create(
133      &threadId,
134      &attr,
135      (i == OPERATION_COUNT - 1) ? Low : Middle,
136      NULL
137    );
138    rtems_test_assert( status == 0 );
139  }
140
141  /*
142   * Now start the timer which will be stopped in Low
143   * Release the lock.  Threads unblock and preempt.
144   */
145  benchmark_timer_initialize();
146
147    status = pthread_rwlock_unlock(&rwlock);
148      /* thread switch occurs */
149
150  /* should never return */
151  rtems_test_assert( FALSE );
152  return NULL;
153}
154
155/* configuration information */
156
157#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
158#define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER
159
160#define CONFIGURE_MAXIMUM_POSIX_THREADS     OPERATION_COUNT + 2
161#define CONFIGURE_MAXIMUM_POSIX_RWLOCKS     1
162#define CONFIGURE_POSIX_INIT_THREAD_TABLE
163
164#define CONFIGURE_INIT
165
166#include <rtems/confdefs.h>
167/* end of file */
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