/* This is only used for nicer srd_dbg() output. */
SRD_PRIV const char *output_type_name(unsigned int idx)
{
- static const char names[][16] = {
+ static const char *names[] = {
"OUTPUT_ANN",
"OUTPUT_PYTHON",
"OUTPUT_BINARY",
g_variant_unref(gvar);
}
+PyDoc_STRVAR(Decoder_put_doc,
+ "Put an annotation for the specified span of samples.\n"
+ "\n"
+ "Arguments: start and end sample number, stream id, annotation data.\n"
+ "Annotation data's layout depends on the output stream type."
+);
+
static PyObject *Decoder_put(PyObject *self, PyObject *args)
{
GSList *l;
return NULL;
}
-static PyObject *Decoder_register(PyObject *self, PyObject *args,
- PyObject *kwargs)
+PyDoc_STRVAR(Decoder_register_doc,
+ "Register a new output stream."
+);
+
+static PyObject *Decoder_register(PyObject *self,
+ PyObject *args, PyObject *kwargs)
{
struct srd_decoder_inst *di;
struct srd_pd_output *pdo;
return SRD_OK;
}
+PyDoc_STRVAR(Decoder_wait_doc,
+ "Wait for one or more conditions to occur.\n"
+ "\n"
+ "Returns the sample data at the next position where the condition\n"
+ "is seen. When the optional condition is missing or empty, the next\n"
+ "sample number is used. The condition can be a dictionary with one\n"
+ "condition's details, or a list of dictionaries specifying multiple\n"
+ "conditions of which at least one condition must be true. Dicts can\n"
+ "contain one or more key/value pairs, all of which must be true for\n"
+ "the dict's condition to be considered true. The key either is a\n"
+ "channel index or a keyword, the value is the operation's parameter.\n"
+ "\n"
+ "Supported parameters for channel number keys: 'h', 'l', 'r', 'f',\n"
+ "or 'e' for level or edge conditions. Other supported keywords:\n"
+ "'skip' to advance over the given number of samples.\n"
+);
+
static PyObject *Decoder_wait(PyObject *self, PyObject *args)
{
int ret;
/* Signal the main thread that we handled all samples. */
g_cond_signal(&di->handled_all_samples_cond);
+ /*
+ * When EOF was provided externally, communicate the
+ * Python EOFError exception to .decode() and return
+ * from the .wait() method call. This is motivated by
+ * the use of Python context managers, so that .decode()
+ * methods can "close" incompletely accumulated data
+ * when the sample data is exhausted.
+ */
+ if (di->communicate_eof) {
+ srd_dbg("%s: %s: Raising EOF from wait().",
+ di->inst_id, __func__);
+ g_mutex_unlock(&di->data_mutex);
+ PyErr_SetString(PyExc_EOFError, "samples exhausted");
+ goto err;
+ }
+
/*
* When termination of wait() and decode() was requested,
* then exit the loop after releasing the mutex.
return NULL;
}
+PyDoc_STRVAR(Decoder_has_channel_doc,
+ "Check whether input data is supplied for a given channel.\n"
+ "\n"
+ "Argument: A channel index.\n"
+ "Returns: A boolean, True if the channel is connected,\n"
+ "False if the channel is open (won't see any input data).\n"
+);
+
/**
* Return whether the specified channel was supplied to the decoder.
*
int idx, count;
struct srd_decoder_inst *di;
PyGILState_STATE gstate;
+ PyObject *bool_ret;
if (!self || !args)
return NULL;
PyGILState_Release(gstate);
- return (di->dec_channelmap[idx] == -1) ? Py_False : Py_True;
+ bool_ret = (di->dec_channelmap[idx] == -1) ? Py_False : Py_True;
+ Py_INCREF(bool_ret);
+ return bool_ret;
err:
PyGILState_Release(gstate);
return NULL;
}
+PyDoc_STRVAR(Decoder_doc, "sigrok Decoder base class");
+
static PyMethodDef Decoder_methods[] = {
- { "put", Decoder_put, METH_VARARGS,
- "Accepts a dictionary with the following keys: startsample, endsample, data" },
- { "register", (PyCFunction)(void(*)(void))Decoder_register, METH_VARARGS|METH_KEYWORDS,
- "Register a new output stream" },
- { "wait", Decoder_wait, METH_VARARGS,
- "Wait for one or more conditions to occur" },
- { "has_channel", Decoder_has_channel, METH_VARARGS,
- "Report whether a channel was supplied" },
- {NULL, NULL, 0, NULL}
+ { "put",
+ Decoder_put, METH_VARARGS,
+ Decoder_put_doc,
+ },
+ { "register",
+ (PyCFunction)(void(*)(void))Decoder_register, METH_VARARGS | METH_KEYWORDS,
+ Decoder_register_doc,
+ },
+ { "wait",
+ Decoder_wait, METH_VARARGS,
+ Decoder_wait_doc,
+ },
+ { "has_channel",
+ Decoder_has_channel, METH_VARARGS,
+ Decoder_has_channel_doc,
+ },
+ ALL_ZERO,
};
/**
{
PyType_Spec spec;
PyType_Slot slots[] = {
- { Py_tp_doc, "sigrok Decoder base class" },
+ { Py_tp_doc, Decoder_doc },
{ Py_tp_methods, Decoder_methods },
{ Py_tp_new, (void *)&PyType_GenericNew },
- { 0, NULL }
+ ALL_ZERO,
};
PyObject *py_obj;
PyGILState_STATE gstate;