test-cond.c

Show log
Commit

Hash : 1b612639
Author :
Date : 2012-01-04T14:31:33

Talk about "native Windows API", not "Win32".

* lib/classpath.c: Update comments to mention native Windows.
* lib/csharpexec.c: Likewise.
* lib/dup2.c: Likewise.
* lib/error.c: Likewise.
* lib/fcntl.c: Likewise.
* lib/filename.h: Likewise.
* lib/findprog.c: Likewise.
* lib/get-rusage-as.c: Likewise.
* lib/get-rusage-data.c: Likewise.
* lib/getpagesize.c: Likewise.
* lib/javaexec.c: Likewise.
* lib/msvc-inval.c: Likewise.
* lib/msvc-nothrow.c: Likewise.
* lib/nanosleep.c: Likewise.
* lib/nonblocking.c: Likewise.
* lib/printf-parse.c: Likewise.
* lib/setlocale.c: Likewise.
* lib/sigaction.c: Likewise.
* lib/strerror_r.c: Likewise.
* lib/tmpdir.c: Likewise.
* lib/vasnprintf.c: Likewise.
* lib/w32spawn.h: Likewise.
* lib/waitpid.c: Likewise.
* lib/stdio.in.h (fdopen, fopen, freopen): Likewise.
* m4/locale-ar.m4: Likewise.
* m4/locale-fr.m4: Likewise.
* m4/locale-ja.m4: Likewise.
* m4/locale-tr.m4: Likewise.
* m4/locale-zh.m4: Likewise.
* m4/printf.m4: Likewise.
* tests/test-cloexec.c: Likewise.
* tests/test-copy-acl.sh: Likewise.
* tests/test-copy-file.sh: Likewise.
* tests/test-file-has-acl.sh: Likewise.
* tests/test-set-mode-acl.sh: Likewise.
* tests/test-dup-safer.c: Likewise.
* tests/test-dup2.c: Likewise.
* tests/test-dup3.c: Likewise.
* tests/test-fcntl.c: Likewise.
* tests/test-nonblocking-pipe.h: Likewise.
* tests/test-nonblocking-socket.h: Likewise.
* tests/test-pipe.c: Likewise.
* tests/test-pipe2.c: Likewise.
* tests/test-spawn-pipe-child.c: Likewise.
* doc/acl-resources.txt: Likewise.
* lib/getaddrinfo.c (WINDOWS_NATIVE): Renamed from WIN32_NATIVE.
* tests/test-poll.c (WINDOWS_NATIVE): Likewise.
* tests/test-select.h (WINDOWS_NATIVE): Likewise.
* lib/localcharset.c: Update comments to mention native Windows.
(WINDOWS_NATIVE): Renamed from WIN32_NATIVE.
* lib/localename.c: Likewise.
* lib/progreloc.c: Likewise.
* lib/relocatable.c: Likewise.
* lib/poll.c (WINDOWS_NATIVE): Renamed from WIN32_NATIVE.
(windows_compute_revents): Renamed from win32_compute_revents.
(windows_compute_revents_socket): Renamed from
win32_compute_revents_socket.
* lib/select.c: Update comments to mention native Windows.
(windows_poll_handle): Renamed from win32_poll_handle.
* m4/threadlib.m4: Update comments to mention native Windows.
(gl_THREADLIB_EARLY_BODY, gl_THREADLIB_BODY): Expect
--enable-threads=windows instead of --enable-threads=win32. Set
USE_WINDOWS_THREADS, not USE_WIN32_THREADS.
* lib/glthread/lock.h: Update comments to mention native Windows.
(USE_WINDOWS_THREADS): Renamed from USE_WIN32_THREADS.
* lib/glthread/lock.c (USE_WINDOWS_THREADS): Renamed from
USE_WIN32_THREADS.
* lib/glthread/cond.h (USE_WINDOWS_THREADS): Likewise.
* lib/glthread/cond.c (USE_WINDOWS_THREADS): Likewise.
* lib/glthread/thread.h (USE_WINDOWS_THREADS): Likewise.
* lib/glthread/thread.c (USE_WINDOWS_THREADS): Likewise.
* lib/glthread/tls.h (USE_WINDOWS_THREADS): Likewise.
* lib/glthread/tls.c (USE_WINDOWS_THREADS): Likewise.
* lib/glthread/yield.h (USE_WINDOWS_THREADS): Likewise.
* tests/test-cond.c (USE_WINDOWS_THREADS): Likewise.
* tests/test-thread_create.c (USE_WINDOWS_THREADS): Likewise.
* tests/test-lock.c (USE_WINDOWS_THREADS): Likewise.
(TEST_WINDOWS_THREADS): Renamed from TEST_WIN32_THREADS.
* tests/test-tls.c: Likewise.

Rationale:
Microsoft renamed the "Win32 API" to "Windows API", as it is available
on both 32-bit and 64-bit Windows systems.
But in gnulib, we treat Cygwin like a Unix platform, therefore the main
line of distinction is between "native Windows" on one side and Unix/
POSIX systems on the other side. More details in
<https://lists.gnu.org/archive/html/bug-gnulib/2012-01/msg00027.html>.
Suggested by Paul Eggert.

Download

tests/test-cond.c

/* Test of condition variables in multithreaded situations.
   Copyright (C) 2008-2012 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include <config.h>

#if USE_POSIX_THREADS || USE_SOLARIS_THREADS || USE_PTH_THREADS || USE_WINDOWS_THREADS

/* Which tests to perform.
   Uncomment some of these, to verify that all tests crash if no locking
   is enabled.  */
#define DO_TEST_COND 1
#define DO_TEST_TIMEDCOND 1


/* Whether to help the scheduler through explicit yield().
   Uncomment this to see if the operating system has a fair scheduler.  */
#define EXPLICIT_YIELD 1

/* Whether to print debugging messages.  */
#define ENABLE_DEBUGGING 0

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>

#include "glthread/cond.h"
#include "glthread/lock.h"
#include "glthread/thread.h"
#include "glthread/yield.h"

#if ENABLE_DEBUGGING
# define dbgprintf printf
#else
# define dbgprintf if (0) printf
#endif

#if EXPLICIT_YIELD
# define yield() gl_thread_yield ()
#else
# define yield()
#endif


/*
 * Condition check
 */
#include <unistd.h>
static int cond_value = 0;
gl_cond_define_initialized(static, condtest)
gl_lock_define_initialized(static, lockcond)

static void *
cond_routine (void *arg)
{
  gl_lock_lock (lockcond);
  while (!cond_value)
    {
      gl_cond_wait (condtest, lockcond);
    }
  gl_lock_unlock (lockcond);

  cond_value = 2;

  return NULL;
}

void
test_cond ()
{
  int remain = 2;
  gl_thread_t thread;

  cond_value = 0;

  thread = gl_thread_create (cond_routine, NULL);
  do
    {
      yield ();
      remain = sleep (remain);
    }
  while (remain);

  /* signal condition */
  gl_lock_lock (lockcond);
  cond_value = 1;
  gl_cond_signal (condtest);
  gl_lock_unlock (lockcond);

  gl_thread_join (thread, NULL);

  if (cond_value != 2)
    abort ();
}


/*
 * Timed Condition check
 */
static int cond_timeout;

static void
get_ts (struct timespec *ts)
{
  struct timeval now;

  gettimeofday (&now, NULL);

  ts->tv_sec = now.tv_sec + 1;
  ts->tv_nsec = now.tv_usec * 1000;
}

static void *
timedcond_routine (void *arg)
{
  int ret;
  struct timespec ts;

  gl_lock_lock (lockcond);
  while (!cond_value)
    {
      get_ts (&ts);
      ret = glthread_cond_timedwait (&condtest, &lockcond, &ts);
      if (ret == ETIMEDOUT)
        cond_timeout = 1;
    }
  gl_lock_unlock (lockcond);

  return NULL;
}

static void
test_timedcond (void)
{
  int remain = 2;
  gl_thread_t thread;

  cond_value = cond_timeout = 0;

  thread = gl_thread_create (timedcond_routine, NULL);

  remain = 2;
  do
    {
      yield ();
      remain = sleep (remain);
    }
  while (remain);

  /* signal condition */
  gl_lock_lock (lockcond);
  cond_value = 1;
  gl_cond_signal (condtest);
  gl_lock_unlock (lockcond);

  gl_thread_join (thread, NULL);

  if (!cond_timeout)
    abort ();
}

int
main ()
{
#if TEST_PTH_THREADS
  if (!pth_init ())
    abort ();
#endif

#if DO_TEST_COND
  printf ("Starting test_cond ..."); fflush (stdout);
  test_cond ();
  printf (" OK\n"); fflush (stdout);
#endif
#if DO_TEST_TIMEDCOND
  printf ("Starting test_timedcond ..."); fflush (stdout);
  test_timedcond ();
  printf (" OK\n"); fflush (stdout);
#endif

  return 0;
}

#else

/* No multithreading available.  */

#include <stdio.h>

int
main ()
{
  fputs ("Skipping test: multithreading not enabled\n", stderr);
  return 77;
}

#endif

Download

kc3-lang/gnulib/tests/test-cond.c

Commit

tests/test-cond.c