static PyObject *
tasklet_get_channel(PyTaskletObject *task)
{
PyTaskletObject *prev = task->prev;
PyObject *ret = Py_None;
if (prev != NULL && task->flags.blocked) {
/* search left, optimizing in-oder access */
while (!PyChannel_Check(prev))
prev = prev->prev;
ret = (PyObject *) prev;
}
Py_INCREF(ret);
return ret;
}
PyTaskletObject *
slp_channel_remove_slow(PyTaskletObject *task)
{
int dir;
PyChannelObject *channel;
PyTaskletObject *prev = task->prev;
assert(task->flags.blocked);
while (!PyChannel_Check(prev))
prev = prev->prev;
channel = (PyChannelObject *) prev;
assert(channel->balance);
dir = channel->balance > 0 ? 1 : -1;
return slp_channel_remove_specific(channel, dir, task);;
}
static CHANNEL_SEND_EXCEPTION_HEAD(impl_channel_send_exception)
{
STACKLESS_GETARG();
PyThreadState *ts = PyThreadState_GET();
PyObject *bomb, *ret = NULL;
assert(PyChannel_Check(self));
if (ts->st.main == NULL)
return PyChannel_SendException_M(self, klass, args);
bomb = slp_make_bomb(klass, args, "channel.send_exception");
if (bomb != NULL) {
ret = generic_channel_action(self, bomb, 1, stackless);
Py_DECREF(bomb);
}
return ret;
}
void
slp_channel_remove_slow(PyTaskletObject *task,
PyChannelObject **u_chan,
int *u_dir,
PyTaskletObject **u_next)
{
PyChannelObject *channel;
PyTaskletObject *prev = task->prev;
assert(task->flags.blocked);
while (!PyChannel_Check(prev))
prev = prev->prev;
channel = (PyChannelObject *) prev;
if (u_chan)
*u_chan = channel;
slp_channel_remove(channel, task, u_dir, u_next);
}
static PyObject *
impl_channel_send_throw(PyChannelObject *self, PyObject *exc, PyObject *val, PyObject *tb)
{
STACKLESS_GETARG();
PyThreadState *ts = PyThreadState_GET();
PyObject *bomb, *ret = NULL;
assert(PyChannel_Check(self));
if (ts->st.main == NULL)
return PyChannel_SendThrow_M(self, exc, val, tb);
bomb = slp_exc_to_bomb(exc, val, tb);
if (bomb != NULL) {
ret = generic_channel_action(self, bomb, 1, stackless);
Py_DECREF(bomb);
}
return ret;
}