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* cygwin.din (pthread_condattr_getclock): Export.

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(pthread_condattr_setclock): Export.
* posix.sgml (std-notimpl): Move pthread_condattr_getclock and
pthread_condattr_setclock from here...
(std-susv4): ... to here.
* sysconf.cc (sca): Set _SC_CLOCK_SELECTION to _POSIX_CLOCK_SELECTION.
* thread.cc: (pthread_condattr::pthread_condattr): Initialize clock_id.
(pthread_cond::pthread_cond): Initialize clock_id.
(pthread_cond_timedwait): Use clock_gettime() instead of gettimeofday()
in order to support all allowed clocks.
(pthread_condattr_getclock): New function.
(pthread_condattr_setclock): New function.
* thread.h (class pthread_condattr): Add clock_id member.
(class pthread_cond): Ditto.
* include/pthread.h: Remove obsolete comment.
(pthread_condattr_getclock): Declare.
(pthread_condattr_setclock): Declare.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
This commit is contained in:
Yaakov Selkowitz
2011-07-21 09:39:22 +00:00
parent 792c8bcff2
commit 8a7b0a00df
8 changed files with 79 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

62
winsup/cygwin/thread.cc
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@@ -1099,7 +1099,8 @@ pthread_attr::~pthread_attr ()
}
pthread_condattr::pthread_condattr ():verifyable_object
(PTHREAD_CONDATTR_MAGIC), shared (PTHREAD_PROCESS_PRIVATE)
(PTHREAD_CONDATTR_MAGIC), shared (PTHREAD_PROCESS_PRIVATE),
clock_id (CLOCK_REALTIME)
{
}
@@ -1124,17 +1125,21 @@ pthread_cond::init_mutex ()
pthread_cond::pthread_cond (pthread_condattr *attr) :
verifyable_object (PTHREAD_COND_MAGIC),
shared (0), waiting (0), pending (0), sem_wait (NULL),
mtx_cond(NULL), next (NULL)
shared (0), clock_id (CLOCK_REALTIME), waiting (0), pending (0),
sem_wait (NULL), mtx_cond(NULL), next (NULL)
{
pthread_mutex *verifyable_mutex_obj;
if (attr)
if (attr->shared != PTHREAD_PROCESS_PRIVATE)
{
magic = 0;
return;
}
{
clock_id = attr->clock_id;
if (attr->shared != PTHREAD_PROCESS_PRIVATE)
{
magic = 0;
return;
}
}
verifyable_mutex_obj = &mtx_in;
if (!pthread_mutex::is_good_object (&verifyable_mutex_obj))
@@ -2716,7 +2721,7 @@ extern "C" int
pthread_cond_timedwait (pthread_cond_t *cond, pthread_mutex_t *mutex,
const struct timespec *abstime)
{
struct timeval tv;
struct timespec tp;
DWORD waitlength;
myfault efault;
@@ -2731,17 +2736,18 @@ pthread_cond_timedwait (pthread_cond_t *cond, pthread_mutex_t *mutex,
|| abstime->tv_nsec > 999999999)
return EINVAL;
gettimeofday (&tv, NULL);
clock_gettime ((*cond)->clock_id, &tp);
/* Check for immediate timeout before converting to microseconds, since
the resulting value can easily overflow long. This also allows to
evaluate microseconds directly in DWORD. */
if (tv.tv_sec > abstime->tv_sec
|| (tv.tv_sec == abstime->tv_sec
&& tv.tv_usec > abstime->tv_nsec / 1000))
if (tp.tv_sec > abstime->tv_sec
|| (tp.tv_sec == abstime->tv_sec
&& tp.tv_nsec > abstime->tv_nsec))
return ETIMEDOUT;
waitlength = (abstime->tv_sec - tv.tv_sec) * 1000;
waitlength += (abstime->tv_nsec / 1000 - tv.tv_usec) / 1000;
waitlength = (abstime->tv_sec - tp.tv_sec) * 1000;
waitlength += (abstime->tv_nsec - tp.tv_nsec) / 1000000;
return __pthread_cond_dowait (cond, mutex, waitlength);
}
@@ -2792,6 +2798,32 @@ pthread_condattr_setpshared (pthread_condattr_t *attr, int pshared)
return 0;
}
extern "C" int
pthread_condattr_getclock (const pthread_condattr_t *attr, clockid_t *clock_id)
{
if (!pthread_condattr::is_good_object (attr))
return EINVAL;
*clock_id = (*attr)->clock_id;
return 0;
}
extern "C" int
pthread_condattr_setclock (pthread_condattr_t *attr, clockid_t clock_id)
{
if (!pthread_condattr::is_good_object (attr))
return EINVAL;
switch (clock_id)
{
case CLOCK_REALTIME:
case CLOCK_MONOTONIC:
break;
default:
return EINVAL;
}
(*attr)->clock_id = clock_id;
return 0;
}
extern "C" int
pthread_condattr_destroy (pthread_condattr_t *condattr)
{