diff options
| author | rpj <rpj> | 2005-04-25 01:22:12 +0000 | 
|---|---|---|
| committer | rpj <rpj> | 2005-04-25 01:22:12 +0000 | 
| commit | 221a738b3884b485239adc4a80076ee5b961b093 (patch) | |
| tree | eb96c571c7109c6e01670db5de5fb2cba0d2bd39 | |
| parent | 8a78e259203a6edabe53d78b8aa44666e50366e1 (diff) | |
''
| -rw-r--r-- | Bmakefile | 11 | ||||
| -rw-r--r-- | ChangeLog | 30 | ||||
| -rw-r--r-- | GNUmakefile | 8 | ||||
| -rw-r--r-- | Makefile | 8 | ||||
| -rw-r--r-- | WinCE-PORT | 9 | ||||
| -rw-r--r-- | pthread.h | 4 | ||||
| -rw-r--r-- | ptw32_relmillisecs.c | 120 | ||||
| -rw-r--r-- | tests/benchtest1.c | 497 | ||||
| -rw-r--r-- | tests/benchtest5.c | 334 | ||||
| -rw-r--r-- | tests/semaphore1.c | 316 | 
10 files changed, 739 insertions, 598 deletions
| @@ -6,9 +6,9 @@  # Currently only the recommended pthreadBC.dll is built by this makefile.
  #
 - -DLL_VER	= 2
 - +
 +DLL_VER	= 1
 +
  DEVROOT	= .
  DLLDEST	= $(DEVROOT)\DLL
 @@ -139,6 +139,7 @@ PRIVATE_SRCS	= \  		ptw32_tkAssocDestroy.c \
  		ptw32_callUserDestroyRoutines.c \
  		ptw32_timespec.c \
 +		ptw32_relmillisecs.c \
  		ptw32_throw.c \
  		ptw32_InterlockedCompareExchange.c \
  		ptw32_getprocessors.c
 @@ -186,9 +187,7 @@ SEMAPHORE_SRCS = \  		sem_getvalue.c \
  		sem_open.c \
  		sem_close.c \
 -		sem_unlink.c \
 -		ptw32_increase_semaphore.c \
 -		ptw32_decrease_semaphore.c
 +		sem_unlink.c
  SPIN_SRCS	= \
  		ptw32_spinlock_check_need_init.c \
 @@ -1,3 +1,33 @@ +2005-04-25  Ross Johnson  <ross at callisto.canberra.edu.au>
 +
 +	* ptw32_relmillisecs.c: New module; converts future abstime to 
 +	milliseconds relative to 'now'.
 +	* pthread_mutex_timedlock.c: Use new ptw32_relmillisecs routine in
 +	place of internal code; remove the NEED_SEM code - this routine is now
 +	implemented for builds that define NEED_SEM (WinCE etc)
 +	* sem_timedwait.c: Likewise; after timeout or cancellation,
 +	re-attempt to acquire the semaphore in case one has been posted since
 +	the timeout/cancel occurred. Thanks to 
 +	* Makefile: Add ptw32_relmillisecs.c module; remove
 +	ptw32_{in,de}crease_semaphore.c modules.
 +	* GNUmakefile: Likewise.
 +	* Bmakefile: Likewise.
 +
 +	* sem_init.c: Re-write the NEED_SEM code to be consistent with the
 +	non-NEED_SEM code, but retaining use of an event in place of the w32 sema
 +	for w32 systems that don't include semaphores (WinCE);
 +	the NEED_SEM versions of semaphores has been broken for a long time but is
 +	now fixed and supports all of the same routines as the non-NEED_SEM case.
 +	* sem_destroy.c: Likewise.
 +	* sem_wait.c: Likewise.
 +	* sem_post.c: Likewise.
 +	* sem_post_multple.c: Likewise.
 +	* implement.h: Likewise.
 +	* sem_timedwait.c: Likewise; this routine is now
 +	implemented for builds that define NEED_SEM (WinCE etc).
 +	* sem_trywait.c: Likewise.
 +	* sem_getvalue.c: Likewise.
 +
  2005-04-11  Ross Johnson  <ross at callisto.canberra.edu.au>
  	* pthread_once.c: Add priority boosting to prevent init_routine
 diff --git a/GNUmakefile b/GNUmakefile index 1964213..d18402a 100644 --- a/GNUmakefile +++ b/GNUmakefile @@ -219,6 +219,7 @@ SMALL_STATIC_OBJS	= \  		ptw32_new.o \
  		ptw32_reuse.o \
  		ptw32_semwait.o \
 +		ptw32_relmillisecs.o \
  		ptw32_rwlock_check_need_init.o \
  		sched_get_priority_max.o \
  		sched_get_priority_min.o \
 @@ -236,8 +237,6 @@ SMALL_STATIC_OBJS	= \  		sem_open.o \
  		sem_close.o \
  		sem_unlink.o \
 -		ptw32_increase_semaphore.o \
 -		ptw32_decrease_semaphore.o \
  		signal.o \
  		pthread_kill.o \
  		ptw32_spinlock_check_need_init.o \
 @@ -349,6 +348,7 @@ PRIVATE_SRCS	= \  		ptw32_tkAssocDestroy.c \
  		ptw32_callUserDestroyRoutines.c \
  		ptw32_semwait.c \
 +		ptw32_relmillisecs.c \
  		ptw32_timespec.c \
  		ptw32_throw.c \
  		ptw32_InterlockedCompareExchange.c \
 @@ -397,9 +397,7 @@ SEMAPHORE_SRCS = \  		sem_getvalue.c \
  		sem_open.c \
  		sem_close.c \
 -		sem_unlink.c \
 -		ptw32_increase_semaphore.c \
 -		ptw32_decrease_semaphore.c
 +		sem_unlink.c
  SPIN_SRCS	= \
  		ptw32_spinlock_check_need_init.c \
 @@ -174,6 +174,7 @@ SMALL_STATIC_OBJS	= \  		ptw32_cond_check_need_init.obj \
  		ptw32_mutex_check_need_init.obj \
  		ptw32_semwait.obj \
 +		ptw32_relmillisecs.obj \
  		sched_get_priority_max.obj \
  		sched_get_priority_min.obj \
  		sched_setscheduler.obj \
 @@ -190,8 +191,6 @@ SMALL_STATIC_OBJS	= \  		sem_open.obj \
  		sem_close.obj \
  		sem_unlink.obj \
 -		ptw32_increase_semaphore.obj \
 -		ptw32_decrease_semaphore.obj \
  		signal.obj \
  		pthread_kill.obj \
  		ptw32_spinlock_check_need_init.obj \
 @@ -262,6 +261,7 @@ MISC_SRCS	= \  		ptw32_calloc.c \
  		ptw32_new.c \
  		ptw32_reuse.c \
 +		ptw32_relmillisecs.c \
  		w32_CancelableWait.c
  MUTEX_SRCS	= \
 @@ -346,9 +346,7 @@ SEMAPHORE_SRCS = \  		sem_getvalue.c \
  		sem_open.c \
  		sem_close.c \
 -		sem_unlink.c \
 -		ptw32_increase_semaphore.c \
 -		ptw32_decrease_semaphore.c
 +		sem_unlink.c
  SPIN_SRCS	= \
  		ptw32_spinlock_check_need_init.c \
 @@ -1,3 +1,12 @@ +NOTE: The comments in this file relate to the original WinCE port +done by Tristan Savatier. The semaphore routines have been  +completely rewritten since (2005-04-25), having been progressively +broken more and more by changes to the library. All of the semaphore +routines implemented for W9x/WNT/2000 and up should now also work for +WinCE. Also, pthread_mutex_timedlock should now work. [RPJ] + +---- +  Some interesting news:  I have been able to port pthread-win32 to Windows-CE, @@ -37,8 +37,8 @@   * See the README file for an explanation of the pthreads-win32 version
   * numbering scheme and how the DLL is named etc.
   */
 -#define PTW32_VERSION 1,7,0,0
 -#define PTW32_VERSION_STRING "1, 7, 0, 0\0"
 +#define PTW32_VERSION 1,8,0,0
 +#define PTW32_VERSION_STRING "1, 8, 0, 0\0"
  /* There are three implementations of cancel cleanup.
   * Note that pthread.h is included in both application
 diff --git a/ptw32_relmillisecs.c b/ptw32_relmillisecs.c new file mode 100644 index 0000000..2e6bc4d --- /dev/null +++ b/ptw32_relmillisecs.c @@ -0,0 +1,120 @@ +/*
 + * ptw32_relmillisecs.c
 + *
 + * Description:
 + * This translation unit implements miscellaneous thread functions.
 + *
 + * --------------------------------------------------------------------------
 + *
 + *      Pthreads-win32 - POSIX Threads Library for Win32
 + *      Copyright(C) 1998 John E. Bossom
 + *      Copyright(C) 1999,2005 Pthreads-win32 contributors
 + * 
 + *      Contact Email: rpj@callisto.canberra.edu.au
 + * 
 + *      The current list of contributors is contained
 + *      in the file CONTRIBUTORS included with the source
 + *      code distribution. The list can also be seen at the
 + *      following World Wide Web location:
 + *      http://sources.redhat.com/pthreads-win32/contributors.html
 + * 
 + *      This library is free software; you can redistribute it and/or
 + *      modify it under the terms of the GNU Lesser General Public
 + *      License as published by the Free Software Foundation; either
 + *      version 2 of the License, or (at your option) any later version.
 + * 
 + *      This library 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
 + *      Lesser General Public License for more details.
 + * 
 + *      You should have received a copy of the GNU Lesser General Public
 + *      License along with this library in the file COPYING.LIB;
 + *      if not, write to the Free Software Foundation, Inc.,
 + *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 + */
 +
 +#ifndef _UWIN
 +//#include <process.h>
 +#endif
 +#include "pthread.h"
 +#include "implement.h"
 +#ifndef NEED_FTIME
 +#include <sys/timeb.h>
 +#endif
 +
 +
 +INLINE DWORD 
 +ptw32_relmillisecs (const struct timespec * abstime)
 +{
 +  const int64_t NANOSEC_PER_MILLISEC = 1000000;
 +  const int64_t MILLISEC_PER_SEC = 1000;
 +  DWORD milliseconds;
 +  int64_t tmpAbsMilliseconds;
 +  int64_t tmpCurrMilliseconds;
 +#ifdef NEED_FTIME
 +  struct timespec currSysTime;
 +  FILETIME ft;
 +  SYSTEMTIME st;
 +#else /* ! NEED_FTIME */
 +  struct _timeb currSysTime;
 +#endif /* NEED_FTIME */
 +
 +
 +  /* 
 +   * Calculate timeout as milliseconds from current system time. 
 +   */
 +
 +  /*
 +   * subtract current system time from abstime in a way that checks
 +   * that abstime is never in the past, or is never equivalent to the
 +   * defined INFINITE value (0xFFFFFFFF).
 +   *
 +   * Assume all integers are unsigned, i.e. cannot test if less than 0.
 +   */
 +  tmpAbsMilliseconds =  (int64_t)abstime->tv_sec * MILLISEC_PER_SEC;
 +  tmpAbsMilliseconds += ((int64_t)abstime->tv_nsec + (NANOSEC_PER_MILLISEC/2)) / NANOSEC_PER_MILLISEC;
 +
 +  /* get current system time */
 +
 +#ifdef NEED_FTIME
 +
 +  GetSystemTime(&st);
 +  SystemTimeToFileTime(&st, &ft);
 +  /*
 +   * GetSystemTimeAsFileTime(&ft); would be faster,
 +   * but it does not exist on WinCE
 +   */
 +
 +  ptw32_filetime_to_timespec(&ft, &currSysTime);
 +
 +  tmpCurrMilliseconds = (int64_t)currSysTime.tv_sec * MILLISEC_PER_SEC;
 +  tmpCurrMilliseconds += ((int64_t)currSysTime.tv_nsec + (NANOSEC_PER_MILLISEC/2))
 +			   / NANOSEC_PER_MILLISEC;
 +
 +#else /* ! NEED_FTIME */
 +
 +  _ftime(&currSysTime);
 +
 +  tmpCurrMilliseconds = (int64_t) currSysTime.time * MILLISEC_PER_SEC;
 +  tmpCurrMilliseconds += (int64_t) currSysTime.millitm;
 +
 +#endif /* NEED_FTIME */
 +
 +  if (tmpAbsMilliseconds > tmpCurrMilliseconds)
 +    {
 +      milliseconds = (DWORD) (tmpAbsMilliseconds - tmpCurrMilliseconds);
 +      if (milliseconds == INFINITE)
 +        {
 +          /* Timeouts must be finite */
 +          milliseconds--;
 +        }
 +    }
 +  else
 +    {
 +      /* The abstime given is in the past */
 +      milliseconds = 0;
 +    }
 +
 +  return milliseconds;
 +}
 diff --git a/tests/benchtest1.c b/tests/benchtest1.c index c8f7f41..453ebcc 100644 --- a/tests/benchtest1.c +++ b/tests/benchtest1.c @@ -1,248 +1,249 @@ -/* - * benchtest1.c - * - * - * -------------------------------------------------------------------------- - * - *      Pthreads-win32 - POSIX Threads Library for Win32 - *      Copyright(C) 1998 John E. Bossom - *      Copyright(C) 1999,2005 Pthreads-win32 contributors - *  - *      Contact Email: rpj@callisto.canberra.edu.au - *  - *      The current list of contributors is contained - *      in the file CONTRIBUTORS included with the source - *      code distribution. The list can also be seen at the - *      following World Wide Web location: - *      http://sources.redhat.com/pthreads-win32/contributors.html - *  - *      This library is free software; you can redistribute it and/or - *      modify it under the terms of the GNU Lesser General Public - *      License as published by the Free Software Foundation; either - *      version 2 of the License, or (at your option) any later version. - *  - *      This library 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 - *      Lesser General Public License for more details. - *  - *      You should have received a copy of the GNU Lesser General Public - *      License along with this library in the file COPYING.LIB; - *      if not, write to the Free Software Foundation, Inc., - *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA - * - * -------------------------------------------------------------------------- - * - * Measure time taken to complete an elementary operation. - * - * - Mutex - *   Single thread iteration over lock/unlock for each mutex type. - */ - -#include "test.h" -#include <sys/timeb.h> - -#ifdef __GNUC__ -#include <stdlib.h> -#endif - -#include "benchtest.h" - -#define PTW32_MUTEX_TYPES -#define ITERATIONS      10000000L - -pthread_mutex_t mx; -pthread_mutexattr_t ma; -struct _timeb currSysTimeStart; -struct _timeb currSysTimeStop; -long durationMilliSecs; -long overHeadMilliSecs = 0; -int one = 1; -int zero = 0; - -#define GetDurationMilliSecs(_TStart, _TStop) ((_TStop.time*1000+_TStop.millitm) \ -                                               - (_TStart.time*1000+_TStart.millitm)) - -/* - * Dummy use of j, otherwise the loop may be removed by the optimiser - * when doing the overhead timing with an empty loop. - */ -#define TESTSTART \ -  { int i, j = 0, k = 0; _ftime(&currSysTimeStart); for (i = 0; i < ITERATIONS; i++) { j++; - -#define TESTSTOP \ -  }; _ftime(&currSysTimeStop); if (j + k == i) j++; } - - -void -runTest (char * testNameString, int mType) -{ -#ifdef PTW32_MUTEX_TYPES -  assert(pthread_mutexattr_settype(&ma, mType) == 0); -#endif -  assert(pthread_mutex_init(&mx, &ma) == 0); - -  TESTSTART -  assert(pthread_mutex_lock(&mx) == zero); -  assert(pthread_mutex_unlock(&mx) == zero); -  TESTSTOP - -  assert(pthread_mutex_destroy(&mx) == 0); - -  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs; - -  printf( "%-45s %15ld %15.3f\n", -	    testNameString, -          durationMilliSecs, -          (float) durationMilliSecs * 1E3 / ITERATIONS); -} - - -int -main (int argc, char *argv[]) -{ -  int i = 0; -  CRITICAL_SECTION cs; -  old_mutex_t ox; -  pthread_mutexattr_init(&ma); - -  printf( "=============================================================================\n"); -  printf( "\nLock plus unlock on an unlocked mutex.\n%ld iterations\n\n", -          ITERATIONS); -  printf( "%-45s %15s %15s\n", -	    "Test", -	    "Total(msec)", -	    "average(usec)"); -  printf( "-----------------------------------------------------------------------------\n"); - -  /* -   * Time the loop overhead so we can subtract it from the actual test times. -   */ - -  TESTSTART -  assert(1 == one); -  assert(1 == one); -  TESTSTOP - -  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs; -  overHeadMilliSecs = durationMilliSecs; - - -  TESTSTART -  assert((dummy_call(&i), 1) == one); -  assert((dummy_call(&i), 1) == one); -  TESTSTOP - -  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs; - -  printf( "%-45s %15ld %15.3f\n", -	    "Dummy call x 2", -          durationMilliSecs, -          (float) durationMilliSecs * 1E3 / ITERATIONS); - - -  TESTSTART -  assert((interlocked_inc_with_conditionals(&i), 1) == one); -  assert((interlocked_dec_with_conditionals(&i), 1) == one); -  TESTSTOP - -  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs; - -  printf( "%-45s %15ld %15.3f\n", -	    "Dummy call -> Interlocked with cond x 2", -          durationMilliSecs, -          (float) durationMilliSecs * 1E3 / ITERATIONS); - - -  TESTSTART -  assert((InterlockedIncrement(&i), 1) == one); -  assert((InterlockedDecrement(&i), 1) == one); -  TESTSTOP - -  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs; - -  printf( "%-45s %15ld %15.3f\n", -	    "InterlockedOp x 2", -          durationMilliSecs, -          (float) durationMilliSecs * 1E3 / ITERATIONS); - - -  InitializeCriticalSection(&cs); - -  TESTSTART -  assert((EnterCriticalSection(&cs), 1) == one); -  assert((LeaveCriticalSection(&cs), 1) == one); -  TESTSTOP - -  DeleteCriticalSection(&cs); - -  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs; - -  printf( "%-45s %15ld %15.3f\n", -	    "Simple Critical Section", -          durationMilliSecs, -          (float) durationMilliSecs * 1E3 / ITERATIONS); - - -  old_mutex_use = OLD_WIN32CS; -  assert(old_mutex_init(&ox, NULL) == 0); - -  TESTSTART -  assert(old_mutex_lock(&ox) == zero); -  assert(old_mutex_unlock(&ox) == zero); -  TESTSTOP - -  assert(old_mutex_destroy(&ox) == 0); - -  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs; - -  printf( "%-45s %15ld %15.3f\n", -	    "Old PT Mutex using a Critical Section (WNT)", -          durationMilliSecs, -          (float) durationMilliSecs * 1E3 / ITERATIONS); - - -  old_mutex_use = OLD_WIN32MUTEX; -  assert(old_mutex_init(&ox, NULL) == 0); - -  TESTSTART -  assert(old_mutex_lock(&ox) == zero); -  assert(old_mutex_unlock(&ox) == zero); -  TESTSTOP - -  assert(old_mutex_destroy(&ox) == 0); - -  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs; - -  printf( "%-45s %15ld %15.3f\n", -	    "Old PT Mutex using a Win32 Mutex (W9x)", -          durationMilliSecs, -          (float) durationMilliSecs * 1E3 / ITERATIONS); - -  printf( ".............................................................................\n"); - -  /* -   * Now we can start the actual tests -   */ -#ifdef PTW32_MUTEX_TYPES -  runTest("PTHREAD_MUTEX_DEFAULT (W9x,WNT)", PTHREAD_MUTEX_DEFAULT); - -  runTest("PTHREAD_MUTEX_NORMAL (W9x,WNT)", PTHREAD_MUTEX_NORMAL); - -  runTest("PTHREAD_MUTEX_ERRORCHECK (W9x,WNT)", PTHREAD_MUTEX_ERRORCHECK); - -  runTest("PTHREAD_MUTEX_RECURSIVE (W9x,WNT)", PTHREAD_MUTEX_RECURSIVE); -#else -  runTest("Non-blocking lock", 0); -#endif - -  printf( "=============================================================================\n"); - -  /* -   * End of tests. -   */ - -  pthread_mutexattr_destroy(&ma); - -  return 0; -} +/*
 + * benchtest1.c
 + *
 + *
 + * --------------------------------------------------------------------------
 + *
 + *      Pthreads-win32 - POSIX Threads Library for Win32
 + *      Copyright(C) 1998 John E. Bossom
 + *      Copyright(C) 1999,2005 Pthreads-win32 contributors
 + * 
 + *      Contact Email: rpj@callisto.canberra.edu.au
 + * 
 + *      The current list of contributors is contained
 + *      in the file CONTRIBUTORS included with the source
 + *      code distribution. The list can also be seen at the
 + *      following World Wide Web location:
 + *      http://sources.redhat.com/pthreads-win32/contributors.html
 + * 
 + *      This library is free software; you can redistribute it and/or
 + *      modify it under the terms of the GNU Lesser General Public
 + *      License as published by the Free Software Foundation; either
 + *      version 2 of the License, or (at your option) any later version.
 + * 
 + *      This library 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
 + *      Lesser General Public License for more details.
 + * 
 + *      You should have received a copy of the GNU Lesser General Public
 + *      License along with this library in the file COPYING.LIB;
 + *      if not, write to the Free Software Foundation, Inc.,
 + *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 + *
 + * --------------------------------------------------------------------------
 + *
 + * Measure time taken to complete an elementary operation.
 + *
 + * - Mutex
 + *   Single thread iteration over lock/unlock for each mutex type.
 + */
 +
 +#include "test.h"
 +#include <sys/timeb.h>
 +
 +#ifdef __GNUC__
 +#include <stdlib.h>
 +#endif
 +
 +#include "benchtest.h"
 +
 +#define PTW32_MUTEX_TYPES
 +#define ITERATIONS      10000000L
 +
 +pthread_mutex_t mx;
 +pthread_mutexattr_t ma;
 +struct _timeb currSysTimeStart;
 +struct _timeb currSysTimeStop;
 +long durationMilliSecs;
 +long overHeadMilliSecs = 0;
 +int one = 1;
 +int zero = 0;
 +
 +#define GetDurationMilliSecs(_TStart, _TStop) ((_TStop.time*1000+_TStop.millitm) \
 +                                               - (_TStart.time*1000+_TStart.millitm))
 +
 +/*
 + * Dummy use of j, otherwise the loop may be removed by the optimiser
 + * when doing the overhead timing with an empty loop.
 + */
 +#define TESTSTART \
 +  { int i, j = 0, k = 0; _ftime(&currSysTimeStart); for (i = 0; i < ITERATIONS; i++) { j++;
 +
 +#define TESTSTOP \
 +  }; _ftime(&currSysTimeStop); if (j + k == i) j++; }
 +
 +
 +void
 +runTest (char * testNameString, int mType)
 +{
 +#ifdef PTW32_MUTEX_TYPES
 +  assert(pthread_mutexattr_settype(&ma, mType) == 0);
 +#endif
 +  assert(pthread_mutex_init(&mx, &ma) == 0);
 +
 +  TESTSTART
 +  assert(pthread_mutex_lock(&mx) == zero);
 +  assert(pthread_mutex_unlock(&mx) == zero);
 +  TESTSTOP
 +
 +  assert(pthread_mutex_destroy(&mx) == 0);
 +
 +  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
 +
 +  printf( "%-45s %15ld %15.3f\n",
 +	    testNameString,
 +          durationMilliSecs,
 +          (float) durationMilliSecs * 1E3 / ITERATIONS);
 +}
 +
 +
 +int
 +main (int argc, char *argv[])
 +{
 +  int i = 0;
 +  CRITICAL_SECTION cs;
 +  old_mutex_t ox;
 +  pthread_mutexattr_init(&ma);
 +
 +  printf( "=============================================================================\n");
 +  printf( "\nLock plus unlock on an unlocked mutex.\n%ld iterations\n\n",
 +          ITERATIONS);
 +  printf( "%-45s %15s %15s\n",
 +	    "Test",
 +	    "Total(msec)",
 +	    "average(usec)");
 +  printf( "-----------------------------------------------------------------------------\n");
 +
 +  /*
 +   * Time the loop overhead so we can subtract it from the actual test times.
 +   */
 +
 +  TESTSTART
 +  assert(1 == one);
 +  assert(1 == one);
 +  TESTSTOP
 +
 +  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
 +  overHeadMilliSecs = durationMilliSecs;
 +
 +
 +  TESTSTART
 +  assert((dummy_call(&i), 1) == one);
 +  assert((dummy_call(&i), 1) == one);
 +  TESTSTOP
 +
 +  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
 +
 +  printf( "%-45s %15ld %15.3f\n",
 +	    "Dummy call x 2",
 +          durationMilliSecs,
 +          (float) durationMilliSecs * 1E3 / ITERATIONS);
 +
 +
 +  TESTSTART
 +  assert((interlocked_inc_with_conditionals(&i), 1) == one);
 +  assert((interlocked_dec_with_conditionals(&i), 1) == one);
 +  TESTSTOP
 +
 +  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
 +
 +  printf( "%-45s %15ld %15.3f\n",
 +	    "Dummy call -> Interlocked with cond x 2",
 +          durationMilliSecs,
 +          (float) durationMilliSecs * 1E3 / ITERATIONS);
 +
 +
 +  TESTSTART
 +  assert((InterlockedIncrement((LPLONG)&i), 1) == (LONG)one);
 +  assert((InterlockedDecrement((LPLONG)&i), 1) == (LONG)one);
 +  TESTSTOP
 +
 +  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
 +
 +  printf( "%-45s %15ld %15.3f\n",
 +	    "InterlockedOp x 2",
 +          durationMilliSecs,
 +          (float) durationMilliSecs * 1E3 / ITERATIONS);
 +
 +
 +  InitializeCriticalSection(&cs);
 +
 +  TESTSTART
 +  assert((EnterCriticalSection(&cs), 1) == one);
 +  assert((LeaveCriticalSection(&cs), 1) == one);
 +  TESTSTOP
 +
 +  DeleteCriticalSection(&cs);
 +
 +  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
 +
 +  printf( "%-45s %15ld %15.3f\n",
 +	    "Simple Critical Section",
 +          durationMilliSecs,
 +          (float) durationMilliSecs * 1E3 / ITERATIONS);
 +
 +
 +  old_mutex_use = OLD_WIN32CS;
 +  assert(old_mutex_init(&ox, NULL) == 0);
 +
 +  TESTSTART
 +  assert(old_mutex_lock(&ox) == zero);
 +  assert(old_mutex_unlock(&ox) == zero);
 +  TESTSTOP
 +
 +  assert(old_mutex_destroy(&ox) == 0);
 +
 +  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
 +
 +  printf( "%-45s %15ld %15.3f\n",
 +	    "Old PT Mutex using a Critical Section (WNT)",
 +          durationMilliSecs,
 +          (float) durationMilliSecs * 1E3 / ITERATIONS);
 +
 +
 +  old_mutex_use = OLD_WIN32MUTEX;
 +  assert(old_mutex_init(&ox, NULL) == 0);
 +
 +  TESTSTART
 +  assert(old_mutex_lock(&ox) == zero);
 +  assert(old_mutex_unlock(&ox) == zero);
 +  TESTSTOP
 +
 +  assert(old_mutex_destroy(&ox) == 0);
 +
 +  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
 +
 +  printf( "%-45s %15ld %15.3f\n",
 +	    "Old PT Mutex using a Win32 Mutex (W9x)",
 +          durationMilliSecs,
 +          (float) durationMilliSecs * 1E3 / ITERATIONS);
 +
 +  printf( ".............................................................................\n");
 +
 +  /*
 +   * Now we can start the actual tests
 +   */
 +#ifdef PTW32_MUTEX_TYPES
 +  runTest("PTHREAD_MUTEX_DEFAULT (W9x,WNT)", PTHREAD_MUTEX_DEFAULT);
 +
 +  runTest("PTHREAD_MUTEX_NORMAL (W9x,WNT)", PTHREAD_MUTEX_NORMAL);
 +
 +  runTest("PTHREAD_MUTEX_ERRORCHECK (W9x,WNT)", PTHREAD_MUTEX_ERRORCHECK);
 +
 +  runTest("PTHREAD_MUTEX_RECURSIVE (W9x,WNT)", PTHREAD_MUTEX_RECURSIVE);
 +#else
 +  runTest("Non-blocking lock", 0);
 +#endif
 +
 +  printf( "=============================================================================\n");
 +
 +  /*
 +   * End of tests.
 +   */
 +
 +  pthread_mutexattr_destroy(&ma);
 +
 +  one = i;
 +  return 0;
 +}
 diff --git a/tests/benchtest5.c b/tests/benchtest5.c index 0a8a0b2..2fba9e3 100644 --- a/tests/benchtest5.c +++ b/tests/benchtest5.c @@ -1,175 +1,159 @@ -/* - * benchtest5.c - * - * - * -------------------------------------------------------------------------- - * - *      Pthreads-win32 - POSIX Threads Library for Win32 - *      Copyright(C) 1998 John E. Bossom - *      Copyright(C) 1999,2005 Pthreads-win32 contributors - *  - *      Contact Email: rpj@callisto.canberra.edu.au - *  - *      The current list of contributors is contained - *      in the file CONTRIBUTORS included with the source - *      code distribution. The list can also be seen at the - *      following World Wide Web location: - *      http://sources.redhat.com/pthreads-win32/contributors.html - *  - *      This library is free software; you can redistribute it and/or - *      modify it under the terms of the GNU Lesser General Public - *      License as published by the Free Software Foundation; either - *      version 2 of the License, or (at your option) any later version. - *  - *      This library 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 - *      Lesser General Public License for more details. - *  - *      You should have received a copy of the GNU Lesser General Public - *      License along with this library in the file COPYING.LIB; - *      if not, write to the Free Software Foundation, Inc., - *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA - * - * -------------------------------------------------------------------------- - * - * Measure time taken to complete an elementary operation. - * - * - Semaphore - *   Single thread iteration over post/wait for a semaphore. - */ - -#include "test.h" -#include <sys/timeb.h> - -#ifdef __GNUC__ -#include <stdlib.h> -#endif - -#include "benchtest.h" - -#define ITERATIONS      10000000L - -sem_t sema; - -struct _timeb currSysTimeStart; -struct _timeb currSysTimeStop; -long durationMilliSecs; -long overHeadMilliSecs = 0; -int one = 1; -int zero = 0; - -#define GetDurationMilliSecs(_TStart, _TStop) ((_TStop.time*1000+_TStop.millitm) \ -                                               - (_TStart.time*1000+_TStart.millitm)) - -/* - * Dummy use of j, otherwise the loop may be removed by the optimiser - * when doing the overhead timing with an empty loop. - */ -#define TESTSTART \ -  { int i, j = 0, k = 0; _ftime(&currSysTimeStart); for (i = 0; i < ITERATIONS; i++) { j++; - -#define TESTSTOP \ -  }; _ftime(&currSysTimeStop); if (j + k == i) j++; } - - -void -reportTest (char * testNameString) -{ -  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs; - -  printf( "%-45s %15ld %15.3f\n", -	    testNameString, -          durationMilliSecs, -          (float) durationMilliSecs * 1E3 / ITERATIONS); -} - - -int -main (int argc, char *argv[]) -{ -  printf( "=============================================================================\n"); -  printf( "\nOperations on a semaphore.\n%ld iterations\n\n", -          ITERATIONS); -  printf( "%-45s %15s %15s\n", -	    "Test", -	    "Total(msec)", -	    "average(usec)"); -  printf( "-----------------------------------------------------------------------------\n"); - -  /* -   * Time the loop overhead so we can subtract it from the actual test times. -   */ - -  TESTSTART -  assert(1 == one); -  TESTSTOP - -  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs; -  overHeadMilliSecs = durationMilliSecs; - - -  /* -   * Now we can start the actual tests -   */ -  assert(sem_init(&sema, 0, 0) == 0); -  TESTSTART -  assert(sem_post(&sema) == zero); -  TESTSTOP -  assert(sem_destroy(&sema) == 0); - -  reportTest("Post"); - - -  assert(sem_init(&sema, 0, ITERATIONS) == 0); -  TESTSTART -  assert(sem_wait(&sema) == zero); -  TESTSTOP -  assert(sem_destroy(&sema) == 0); - -  reportTest("Wait without blocking"); - - -  /* -   * Time the loop overhead so we can subtract it from the actual test times. -   */ - -  TESTSTART -  assert(1 == one); -  assert(1 == one); -  TESTSTOP - -  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs; -  overHeadMilliSecs = durationMilliSecs; - - -  /* -   * Now we can start the actual tests -   */ -  assert(sem_init(&sema, 0, 0) == 0); -  TESTSTART -  assert(sem_post(&sema) == zero); -  assert(sem_wait(&sema) == zero); -  TESTSTOP -  assert(sem_destroy(&sema) == 0); - -  reportTest("Post then Wait without blocking"); - - -  assert(sem_init(&sema, 0, 1) == 0); -  TESTSTART -  assert(sem_wait(&sema) == zero); -  assert(sem_post(&sema) == zero); -  TESTSTOP -  assert(sem_destroy(&sema) == 0); - -  reportTest("Wait then Post without blocking"); - -  printf( "=============================================================================\n"); - -  /* -   * End of tests. -   */ - -  return 0; -} +/*
 + * benchtest5.c
 + *
 + *
 + * --------------------------------------------------------------------------
 + *
 + *      Pthreads-win32 - POSIX Threads Library for Win32
 + *      Copyright(C) 1998 John E. Bossom
 + *      Copyright(C) 1999,2005 Pthreads-win32 contributors
 + * 
 + *      Contact Email: rpj@callisto.canberra.edu.au
 + * 
 + *      The current list of contributors is contained
 + *      in the file CONTRIBUTORS included with the source
 + *      code distribution. The list can also be seen at the
 + *      following World Wide Web location:
 + *      http://sources.redhat.com/pthreads-win32/contributors.html
 + * 
 + *      This library is free software; you can redistribute it and/or
 + *      modify it under the terms of the GNU Lesser General Public
 + *      License as published by the Free Software Foundation; either
 + *      version 2 of the License, or (at your option) any later version.
 + * 
 + *      This library 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
 + *      Lesser General Public License for more details.
 + * 
 + *      You should have received a copy of the GNU Lesser General Public
 + *      License along with this library in the file COPYING.LIB;
 + *      if not, write to the Free Software Foundation, Inc.,
 + *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 + *
 + * --------------------------------------------------------------------------
 + *
 + * Measure time taken to complete an elementary operation.
 + *
 + * - Semaphore
 + *   Single thread iteration over post/wait for a semaphore.
 + */
 +
 +#include "test.h"
 +#include <sys/timeb.h>
 +
 +#ifdef __GNUC__
 +#include <stdlib.h>
 +#endif
 +
 +#include "benchtest.h"
 +
 +#define ITERATIONS      1000000L
 +
 +sem_t sema;
 +HANDLE w32sema;
 +
 +struct _timeb currSysTimeStart;
 +struct _timeb currSysTimeStop;
 +long durationMilliSecs;
 +long overHeadMilliSecs = 0;
 +int one = 1;
 +int zero = 0;
 +
 +#define GetDurationMilliSecs(_TStart, _TStop) ((_TStop.time*1000+_TStop.millitm) \
 +                                               - (_TStart.time*1000+_TStart.millitm))
 +
 +/*
 + * Dummy use of j, otherwise the loop may be removed by the optimiser
 + * when doing the overhead timing with an empty loop.
 + */
 +#define TESTSTART \
 +  { int i, j = 0, k = 0; _ftime(&currSysTimeStart); for (i = 0; i < ITERATIONS; i++) { j++;
 +
 +#define TESTSTOP \
 +  }; _ftime(&currSysTimeStop); if (j + k == i) j++; }
 +
 +
 +void
 +reportTest (char * testNameString)
 +{
 +  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
 +
 +  printf( "%-45s %15ld %15.3f\n",
 +	    testNameString,
 +          durationMilliSecs,
 +          (float) durationMilliSecs * 1E3 / ITERATIONS);
 +}
 +
 +
 +int
 +main (int argc, char *argv[])
 +{
 +  printf( "=============================================================================\n");
 +  printf( "\nOperations on a semaphore.\n%ld iterations\n\n",
 +          ITERATIONS);
 +  printf( "%-45s %15s %15s\n",
 +	    "Test",
 +	    "Total(msec)",
 +	    "average(usec)");
 +  printf( "-----------------------------------------------------------------------------\n");
 +
 +  /*
 +   * Time the loop overhead so we can subtract it from the actual test times.
 +   */
 +
 +  TESTSTART
 +  assert(1 == one);
 +  TESTSTOP
 +
 +  durationMilliSecs = GetDurationMilliSecs(currSysTimeStart, currSysTimeStop) - overHeadMilliSecs;
 +  overHeadMilliSecs = durationMilliSecs;
 +
 +
 +  /*
 +   * Now we can start the actual tests
 +   */
 +  assert((w32sema = CreateSemaphore(NULL, (long) 0, (long) ITERATIONS, NULL)) != 0);
 +  TESTSTART
 +  assert(ReleaseSemaphore(w32sema, 1, NULL) != zero);
 +  TESTSTOP
 +  assert(CloseHandle(w32sema) != 0);
 +
 +  reportTest("W32 Post with no waiters");
 +
 +
 +  assert((w32sema = CreateSemaphore(NULL, (long) ITERATIONS, (long) ITERATIONS, NULL)) != 0);
 +  TESTSTART
 +  assert(WaitForSingleObject(w32sema, INFINITE) == WAIT_OBJECT_0);
 +  TESTSTOP
 +  assert(CloseHandle(w32sema) != 0);
 +
 +  reportTest("W32 Wait without blocking");
 +
 +
 +  assert(sem_init(&sema, 0, 0) == 0);
 +  TESTSTART
 +  assert(sem_post(&sema) == zero);
 +  TESTSTOP
 +  assert(sem_destroy(&sema) == 0);
 +
 +  reportTest("POSIX Post with no waiters");
 +
 +
 +  assert(sem_init(&sema, 0, ITERATIONS) == 0);
 +  TESTSTART
 +  assert(sem_wait(&sema) == zero);
 +  TESTSTOP
 +  assert(sem_destroy(&sema) == 0);
 +
 +  reportTest("POSIX Wait without blocking");
 +
 +
 +  printf( "=============================================================================\n");
 +
 +  /*
 +   * End of tests.
 +   */
 +
 +  return 0;
 +}
 diff --git a/tests/semaphore1.c b/tests/semaphore1.c index b11de0d..8ebf365 100644 --- a/tests/semaphore1.c +++ b/tests/semaphore1.c @@ -1,157 +1,159 @@ -/* - * File: semaphore1.c - * - * - * -------------------------------------------------------------------------- - * - *      Pthreads-win32 - POSIX Threads Library for Win32 - *      Copyright(C) 1998 John E. Bossom - *      Copyright(C) 1999,2005 Pthreads-win32 contributors - *  - *      Contact Email: rpj@callisto.canberra.edu.au - *  - *      The current list of contributors is contained - *      in the file CONTRIBUTORS included with the source - *      code distribution. The list can also be seen at the - *      following World Wide Web location: - *      http://sources.redhat.com/pthreads-win32/contributors.html - *  - *      This library is free software; you can redistribute it and/or - *      modify it under the terms of the GNU Lesser General Public - *      License as published by the Free Software Foundation; either - *      version 2 of the License, or (at your option) any later version. - *  - *      This library 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 - *      Lesser General Public License for more details. - *  - *      You should have received a copy of the GNU Lesser General Public - *      License along with this library in the file COPYING.LIB; - *      if not, write to the Free Software Foundation, Inc., - *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA - * - * -------------------------------------------------------------------------- - * - * Test Synopsis: Verify trywait() returns -1 and sets EAGAIN. - * -  - * - * Test Method (Validation or Falsification): - * - Validation - * - * Requirements Tested: - * -  - * - * Features Tested: - * -  - * - * Cases Tested: - * -  - * - * Description: - * -  - * - * Environment: - * -  - * - * Input: - * - None. - * - * Output: - * - File name, Line number, and failed expression on failure. - * - No output on success. - * - * Assumptions: - * -  - * - * Pass Criteria: - * - Process returns zero exit status. - * - * Fail Criteria: - * - Process returns non-zero exit status. - */ - -#include "test.h" - -void * -thr(void * arg) -{ -  sem_t s; -  int result; - -  assert(sem_init(&s, PTHREAD_PROCESS_PRIVATE, 0) == 0); - -  assert((result = sem_trywait(&s)) == -1); - -  if ( result == -1 ) -  { -    perror("thread: sem_trywait 1: expected error"); // No error -    assert(errno == EAGAIN); -  } -  else -  { -    printf("thread: ok 1\n"); -  } - -  assert((result = sem_post(&s)) == 0); - -  assert((result = sem_trywait(&s)) == 0); - -  if ( result == -1 ) -  { -    perror("thread: sem_trywait 2"); -  } -  else -  { -    printf("thread: ok 2\n"); -  } - -  assert(sem_post(&s) == 0); - -  return 0; -} - - -int -main() -{ -  pthread_t t; -  sem_t s; -  int result; - -  assert(pthread_create(&t, NULL, thr, NULL) == 0); -  assert(pthread_join(t, (void **)&result) == 0); -  assert(result == 0); - -  assert(sem_init(&s, PTHREAD_PROCESS_PRIVATE, 0) == 0); - -  assert((result = sem_trywait(&s)) == -1); - -  if ( result == -1 ) -  { -    perror("main: sem_trywait 1: expected error"); // No error -    assert(errno == EAGAIN); -  } -  else -  { -    printf("main: ok 1\n"); -  } - -  assert((result = sem_post(&s)) == 0); - -  assert((result = sem_trywait(&s)) == 0); - -  if ( result == -1 ) -  { -    perror("main: sem_trywait 2"); -  } -  else -  { -    printf("main: ok 2\n"); -  } - -  assert(sem_post(&s) == 0); - -  return 0; -} - +/*
 + * File: semaphore1.c
 + *
 + *
 + * --------------------------------------------------------------------------
 + *
 + *      Pthreads-win32 - POSIX Threads Library for Win32
 + *      Copyright(C) 1998 John E. Bossom
 + *      Copyright(C) 1999,2005 Pthreads-win32 contributors
 + * 
 + *      Contact Email: rpj@callisto.canberra.edu.au
 + * 
 + *      The current list of contributors is contained
 + *      in the file CONTRIBUTORS included with the source
 + *      code distribution. The list can also be seen at the
 + *      following World Wide Web location:
 + *      http://sources.redhat.com/pthreads-win32/contributors.html
 + * 
 + *      This library is free software; you can redistribute it and/or
 + *      modify it under the terms of the GNU Lesser General Public
 + *      License as published by the Free Software Foundation; either
 + *      version 2 of the License, or (at your option) any later version.
 + * 
 + *      This library 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
 + *      Lesser General Public License for more details.
 + * 
 + *      You should have received a copy of the GNU Lesser General Public
 + *      License along with this library in the file COPYING.LIB;
 + *      if not, write to the Free Software Foundation, Inc.,
 + *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
 + *
 + * --------------------------------------------------------------------------
 + *
 + * Test Synopsis: Verify trywait() returns -1 and sets EAGAIN.
 + * - 
 + *
 + * Test Method (Validation or Falsification):
 + * - Validation
 + *
 + * Requirements Tested:
 + * - 
 + *
 + * Features Tested:
 + * - 
 + *
 + * Cases Tested:
 + * - 
 + *
 + * Description:
 + * - 
 + *
 + * Environment:
 + * - 
 + *
 + * Input:
 + * - None.
 + *
 + * Output:
 + * - File name, Line number, and failed expression on failure.
 + * - No output on success.
 + *
 + * Assumptions:
 + * - 
 + *
 + * Pass Criteria:
 + * - Process returns zero exit status.
 + *
 + * Fail Criteria:
 + * - Process returns non-zero exit status.
 + */
 +
 +#include "test.h"
 +
 +void *
 +thr(void * arg)
 +{
 +  sem_t s;
 +  int result;
 +
 +  assert(sem_init(&s, PTHREAD_PROCESS_PRIVATE, 0) == 0);
 +
 +  assert((result = sem_trywait(&s)) == -1);
 +
 +  if ( result == -1 )
 +  {
 +    int err = errno;
 +    perror("thread: sem_trywait 1: expected error"); // No error
 +    assert(err == EAGAIN);
 +  }
 +  else
 +  {
 +    printf("thread: ok 1\n");
 +  }
 +
 +  assert((result = sem_post(&s)) == 0);
 +
 +  assert((result = sem_trywait(&s)) == 0);
 +
 +  if ( result == -1 )
 +  {
 +    perror("thread: sem_trywait 2");
 +  }
 +  else
 +  {
 +    printf("thread: ok 2\n");
 +  }
 +
 +  assert(sem_post(&s) == 0);
 +
 +  return 0;
 +}
 +
 +
 +int
 +main()
 +{
 +  pthread_t t;
 +  sem_t s;
 +  int result;
 +
 +  assert(pthread_create(&t, NULL, thr, NULL) == 0);
 +  assert(pthread_join(t, (void **)&result) == 0);
 +  assert(result == 0);
 +
 +  assert(sem_init(&s, PTHREAD_PROCESS_PRIVATE, 0) == 0);
 +
 +  assert((result = sem_trywait(&s)) == -1);
 +
 +  if ( result == -1 )
 +  {
 +    int err = errno;
 +    perror("main: sem_trywait 1: expected error"); // No error
 +    assert(err == EAGAIN);
 +  }
 +  else
 +  {
 +    printf("main: ok 1\n");
 +  }
 +
 +  assert((result = sem_post(&s)) == 0);
 +
 +  assert((result = sem_trywait(&s)) == 0);
 +
 +  if ( result == -1 )
 +  {
 +    perror("main: sem_trywait 2");
 +  }
 +  else
 +  {
 +    printf("main: ok 2\n");
 +  }
 +
 +  assert(sem_post(&s) == 0);
 +
 +  return 0;
 +}
 +
 | 
