static PyObject*
rlock_release(RLockObject *self)
{
PyObject *current, *res;
DEBUG("self:%p", self);
current = greenlet_getcurrent();
Py_XDECREF(current);
if (current == NULL) {
return NULL;
}
if (self->owner != current) {
PyErr_SetString(PyExc_RuntimeError, "cannot release un-acquired lock");
return NULL;
}
self->count--;
if (self->count <= 0) {
Py_CLEAR(self->owner);
self->owner = Py_None;
Py_INCREF(self->owner);
res = semaphore_release((SemaphoreObject*)self->block);
Py_XDECREF(res);
if (res == NULL) {
return NULL;
}
}
Py_RETURN_NONE;
}
static PyObject*
rlock_acquire(RLockObject *self, PyObject *blocking, long timeout)
{
PyObject *current, *res;
int ret;
DEBUG("self:%p", self);
current = greenlet_getcurrent();
Py_XDECREF(current);
if (current == NULL) {
return NULL;
}
if (self->owner == current) {
self->count++;
Py_RETURN_TRUE;
}
res = semaphore_acquire((SemaphoreObject*)self->block, blocking, timeout);
if (res == NULL) {
return NULL;
}
ret = PyObject_IsTrue(res);
if (ret == -1) {
return NULL;
}
if (ret) {
self->owner = current;
Py_INCREF(self->owner);
self->count = 1;
}
return res;
}
static PyObject*
get_local_dict(void)
{
PyObject *current;
PyObject *dict = NULL;
current = greenlet_getcurrent();
Py_XDECREF(current);
if (current == NULL) {
return NULL;
}
if (PyObject_HasAttr(current, dict_key) == 0) {
dict = PyDict_New();
if (dict == NULL) {
return NULL;
}
if(PyObject_SetAttr(current, dict_key, dict) == -1) {
Py_DECREF(dict);
return NULL;
}
}
return PyObject_GetAttr(current, dict_key);
}
handle current()
{
#if __S3E__
handle f = (handle)IwFibreGetCurrent();
return f;
#elif GREENLETS
handle f = (handle)greenlet_getcurrent();
return f;
#else
OX_ASSERT(!"not implemented");
return 0;
#endif
}
static PyObject*
rlock_is_owned(RLockObject *self)
{
PyObject *current;
DEBUG("self:%p", self);
current = greenlet_getcurrent();
Py_XDECREF(current);
if (current == NULL) {
return NULL;
}
if (self->owner == current) {
Py_RETURN_TRUE;
} else {
Py_RETURN_FALSE;
}
}
PyObject*
semaphore_acquire(SemaphoreObject *self, PyObject *blocking, long timeout)
{
PyObject *res = NULL;
PyObject *current = NULL;
PyObject *timer = NULL;
LoopObject *loop = NULL;
DEBUG("self:%p timeout:%ld counter:%d", self, timeout, self->counter);
if (self->counter > 0) {
self->counter--;
DEBUG("counter decr self:%p", self);
Py_RETURN_TRUE;
} else if(PyObject_Not(blocking)) {
Py_RETURN_FALSE;
}
loop = get_event_loop();
if (loop == NULL) {
return NULL;
}
current = greenlet_getcurrent();
Py_XDECREF(current);
if (current == NULL) {
return NULL;
}
timer = loop_set_timeout(loop, timeout, NULL);
if (timer == NULL) {
return NULL;
}
if (PySet_Add(self->waiters, current) == -1) {
((TimerObject*)timer)->cancelled = 1;
return NULL;
}
while (self->counter <= 0) {
res = loop_switch(loop);
Py_XDECREF(res);
if (res == NULL) {
if (PyErr_ExceptionMatches(TimeoutException)) {
RDEBUG("catch TimeoutException self:%p", self);
if (fetch_timer() == timer) {
PyErr_Clear();
res = Py_False;
goto fin;
}
}
goto fin;
}
}
self->counter--;
res = Py_True;
fin:
((TimerObject*)timer)->cancelled = 1;
if (PySet_Discard(self->waiters, current) == -1) {
res = NULL;
}
Py_DECREF(timer);
Py_XINCREF(res);
return res;
}