#include "libsigrokdecode.h"
#include <inttypes.h>
+/** @cond PRIVATE */
+extern SRD_PRIV GSList *sessions;
+/** @endcond */
+
typedef struct {
PyObject_HEAD
} srd_Decoder;
-/* This is only used for nicer srd_dbg() output.
- */
-static const char *output_type_name(unsigned int idx)
+/* This is only used for nicer srd_dbg() output. */
+SRD_PRIV const char *output_type_name(unsigned int idx)
{
static const char names[][16] = {
"OUTPUT_ANN",
"OUTPUT_PYTHON",
"OUTPUT_BINARY",
+ "OUTPUT_LOGIC",
"OUTPUT_META",
"(invalid)"
};
+
return names[MIN(idx, G_N_ELEMENTS(names) - 1)];
}
return;
if (pda->ann_text)
g_strfreev(pda->ann_text);
- g_free(pda);
}
static int convert_annotation(struct srd_decoder_inst *di, PyObject *obj,
goto err;
}
- pda = g_malloc(sizeof(struct srd_proto_data_annotation));
+ pda = pdata->data;
pda->ann_class = ann_class;
pda->ann_text = ann_text;
- pdata->data = pda;
PyGILState_Release(gstate);
return SRD_ERR_PYTHON;
}
+static void release_logic(struct srd_proto_data_logic *pdl)
+{
+ if (!pdl)
+ return;
+ g_free((void *)pdl->data);
+}
+
+static int convert_logic(struct srd_decoder_inst *di, PyObject *obj,
+ struct srd_proto_data *pdata)
+{
+ struct srd_proto_data_logic *pdl;
+ PyObject *py_tmp;
+ Py_ssize_t size;
+ int logic_group;
+ char *group_name, *buf;
+ PyGILState_STATE gstate;
+
+ gstate = PyGILState_Ensure();
+
+ /* Should be a list of [logic group, bytes]. */
+ if (!PyList_Check(obj)) {
+ srd_err("Protocol decoder %s submitted non-list for SRD_OUTPUT_LOGIC.",
+ di->decoder->name);
+ goto err;
+ }
+
+ /* Should have 2 elements. */
+ if (PyList_Size(obj) != 2) {
+ srd_err("Protocol decoder %s submitted SRD_OUTPUT_LOGIC list "
+ "with %zd elements instead of 2", di->decoder->name,
+ PyList_Size(obj));
+ goto err;
+ }
+
+ /* The first element should be an integer. */
+ py_tmp = PyList_GetItem(obj, 0);
+ if (!PyLong_Check(py_tmp)) {
+ srd_err("Protocol decoder %s submitted SRD_OUTPUT_LOGIC list, "
+ "but first element was not an integer.", di->decoder->name);
+ goto err;
+ }
+ logic_group = PyLong_AsLong(py_tmp);
+ if (!(group_name = g_slist_nth_data(di->decoder->logic_output_channels, logic_group))) {
+ srd_err("Protocol decoder %s submitted SRD_OUTPUT_LOGIC with "
+ "unregistered logic group %d.", di->decoder->name, logic_group);
+ goto err;
+ }
+
+ /* Second element should be bytes. */
+ py_tmp = PyList_GetItem(obj, 1);
+ if (!PyBytes_Check(py_tmp)) {
+ srd_err("Protocol decoder %s submitted SRD_OUTPUT_LOGIC list, "
+ "but second element was not bytes.", di->decoder->name);
+ goto err;
+ }
+
+ /* Consider an empty set of bytes a bug. */
+ if (PyBytes_Size(py_tmp) == 0) {
+ srd_err("Protocol decoder %s submitted SRD_OUTPUT_LOGIC "
+ "with empty data set.", di->decoder->name);
+ goto err;
+ }
+
+ if (PyBytes_AsStringAndSize(py_tmp, &buf, &size) == -1)
+ goto err;
+
+ PyGILState_Release(gstate);
+
+ pdl = pdata->data;
+ pdl->logic_group = logic_group;
+ /* pdl->repeat_count is set by the caller as it depends on the sample range */
+ if (!(pdl->data = g_try_malloc(size)))
+ return SRD_ERR_MALLOC;
+ memcpy((void *)pdl->data, (const void *)buf, size);
+
+ return SRD_OK;
+
+err:
+ PyGILState_Release(gstate);
+
+ return SRD_ERR_PYTHON;
+}
+
static void release_binary(struct srd_proto_data_binary *pdb)
{
if (!pdb)
return;
- if (pdb->data)
- g_free((void *)pdb->data);
- g_free(pdb);
+ g_free((void *)pdb->data);
}
static int convert_binary(struct srd_decoder_inst *di, PyObject *obj,
PyGILState_Release(gstate);
- pdb = g_malloc(sizeof(struct srd_proto_data_binary));
+ pdb = pdata->data;
pdb->bin_class = bin_class;
pdb->size = size;
- if (!(pdb->data = g_try_malloc(pdb->size))) {
- g_free(pdb);
+ if (!(pdb->data = g_try_malloc(pdb->size)))
return SRD_ERR_MALLOC;
- }
memcpy((void *)pdb->data, (const void *)buf, pdb->size);
- pdata->data = pdb;
return SRD_OK;
return SRD_ERR_PYTHON;
}
+static inline struct srd_decoder_inst *srd_sess_inst_find_by_obj(
+ struct srd_session *sess, const GSList *stack, const PyObject *obj)
+{
+ const GSList *l;
+ struct srd_decoder_inst *tmp, *di;
+
+ if (!sess)
+ return NULL;
+
+ di = NULL;
+ for (l = stack ? stack : sess->di_list; di == NULL && l != NULL; l = l->next) {
+ tmp = l->data;
+ if (tmp->py_inst == obj)
+ di = tmp;
+ else if (tmp->next_di)
+ di = srd_sess_inst_find_by_obj(sess, tmp->next_di, obj);
+ }
+
+ return di;
+}
+
+/**
+ * Find a decoder instance by its Python object.
+ *
+ * I.e. find that instance's instantiation of the sigrokdecode.Decoder class.
+ * This will recurse to find the instance anywhere in the stack tree of all
+ * sessions.
+ *
+ * @param stack Pointer to a GSList of struct srd_decoder_inst, indicating the
+ * stack to search. To start searching at the bottom level of
+ * decoder instances, pass NULL.
+ * @param obj The Python class instantiation.
+ *
+ * @return Pointer to struct srd_decoder_inst, or NULL if not found.
+ *
+ * @since 0.1.0
+ */
+static inline struct srd_decoder_inst *srd_inst_find_by_obj(
+ const GSList *stack, const PyObject *obj)
+{
+ struct srd_decoder_inst *di;
+ struct srd_session *sess;
+ GSList *l;
+
+ /* Performance shortcut: Handle the most common case first. */
+ sess = sessions->data;
+ di = sess->di_list->data;
+ if (di->py_inst == obj)
+ return di;
+
+ di = NULL;
+ for (l = sessions; di == NULL && l != NULL; l = l->next) {
+ sess = l->data;
+ di = srd_sess_inst_find_by_obj(sess, stack, obj);
+ }
+
+ return di;
+}
+
static int convert_meta(struct srd_proto_data *pdata, PyObject *obj)
{
long long intvalue;
gstate = PyGILState_Ensure();
- if (pdata->pdo->meta_type == G_VARIANT_TYPE_INT64) {
+ if (g_variant_type_equal(pdata->pdo->meta_type, G_VARIANT_TYPE_INT64)) {
if (!PyLong_Check(obj)) {
PyErr_Format(PyExc_TypeError, "This output was registered "
"as 'int', but something else was passed.");
if (PyErr_Occurred())
goto err;
pdata->data = g_variant_new_int64(intvalue);
- } else if (pdata->pdo->meta_type == G_VARIANT_TYPE_DOUBLE) {
+ } else if (g_variant_type_equal(pdata->pdo->meta_type, G_VARIANT_TYPE_DOUBLE)) {
if (!PyFloat_Check(obj)) {
PyErr_Format(PyExc_TypeError, "This output was registered "
"as 'float', but something else was passed.");
struct srd_decoder_inst *di, *next_di;
struct srd_pd_output *pdo;
struct srd_proto_data pdata;
+ struct srd_proto_data_annotation pda;
+ struct srd_proto_data_binary pdb;
+ struct srd_proto_data_logic pdl;
uint64_t start_sample, end_sample;
int output_id;
struct srd_pd_callback *cb;
}
pdo = l->data;
- srd_spew("Instance %s put %" PRIu64 "-%" PRIu64 " %s on oid %d.",
- di->inst_id, start_sample, end_sample,
- output_type_name(pdo->output_type), output_id);
+ /* Upon SRD_OUTPUT_PYTHON for stacked PDs, we have a nicer log message later. */
+ if (pdo->output_type != SRD_OUTPUT_PYTHON && di->next_di != NULL) {
+ srd_spew("Instance %s put %" PRIu64 "-%" PRIu64 " %s on "
+ "oid %d (%s).", di->inst_id, start_sample, end_sample,
+ output_type_name(pdo->output_type), output_id,
+ pdo->proto_id);
+ }
pdata.start_sample = start_sample;
pdata.end_sample = end_sample;
case SRD_OUTPUT_ANN:
/* Annotations are only fed to callbacks. */
if ((cb = srd_pd_output_callback_find(di->sess, pdo->output_type))) {
+ pdata.data = &pda;
/* Convert from PyDict to srd_proto_data_annotation. */
if (convert_annotation(di, py_data, &pdata) != SRD_OK) {
/* An error was already logged. */
case SRD_OUTPUT_PYTHON:
for (l = di->next_di; l; l = l->next) {
next_di = l->data;
- srd_spew("Sending %" PRIu64 "-%" PRIu64 " to instance %s",
- start_sample, end_sample, next_di->inst_id);
+ srd_spew("Instance %s put %" PRIu64 "-%" PRIu64 " %s "
+ "on oid %d (%s) to instance %s.", di->inst_id,
+ start_sample,
+ end_sample, output_type_name(pdo->output_type),
+ output_id, pdo->proto_id, next_di->inst_id);
if (!(py_res = PyObject_CallMethod(
next_di->py_inst, "decode", "KKO", start_sample,
end_sample, py_data))) {
Py_XDECREF(py_res);
}
if ((cb = srd_pd_output_callback_find(di->sess, pdo->output_type))) {
- /* Frontends aren't really supposed to get Python
- * callbacks, but it's useful for testing. */
+ /*
+ * Frontends aren't really supposed to get Python
+ * callbacks, but it's useful for testing.
+ */
pdata.data = py_data;
cb->cb(&pdata, cb->cb_data);
}
break;
case SRD_OUTPUT_BINARY:
if ((cb = srd_pd_output_callback_find(di->sess, pdo->output_type))) {
+ pdata.data = &pdb;
/* Convert from PyDict to srd_proto_data_binary. */
if (convert_binary(di, py_data, &pdata) != SRD_OK) {
/* An error was already logged. */
release_binary(pdata.data);
}
break;
+ case SRD_OUTPUT_LOGIC:
+ if ((cb = srd_pd_output_callback_find(di->sess, pdo->output_type))) {
+ pdata.data = &pdl;
+ /* Convert from PyDict to srd_proto_data_logic. */
+ if (convert_logic(di, py_data, &pdata) != SRD_OK) {
+ /* An error was already logged. */
+ break;
+ }
+ if (end_sample <= start_sample) {
+ srd_err("Ignored SRD_OUTPUT_LOGIC with invalid sample range.");
+ break;
+ }
+ pdl.repeat_count = (end_sample - start_sample) - 1;
+ Py_BEGIN_ALLOW_THREADS
+ cb->cb(&pdata, cb->cb_data);
+ Py_END_ALLOW_THREADS
+ release_logic(pdata.data);
+ }
+ break;
case SRD_OUTPUT_META:
if ((cb = srd_pd_output_callback_find(di->sess, pdo->output_type))) {
/* Annotations need converting from PyObject. */
const GVariantType *meta_type_gv;
int output_type;
char *proto_id, *meta_name, *meta_descr;
- char *keywords[] = {"output_type", "proto_id", "meta", NULL};
+ char *keywords[] = { "output_type", "proto_id", "meta", NULL };
PyGILState_STATE gstate;
gboolean is_meta;
GSList *l;
goto err;
}
- /* Default to instance id, which defaults to class id. */
+ /* Default to instance ID, which defaults to class ID. */
proto_id = di->inst_id;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|s(Oss)", keywords,
&output_type, &proto_id,
return py_new_output_id;
}
- srd_dbg("Instance %s creating new output type %d for %s.",
- di->inst_id, output_type, proto_id);
-
pdo = g_malloc(sizeof(struct srd_pd_output));
/* pdo_id is just a simple index, nothing is deleted from this list anyway. */
PyGILState_Release(gstate);
+ srd_dbg("Instance %s creating new output type %s as oid %d (%s).",
+ di->inst_id, output_type_name(output_type), pdo->pdo_id,
+ proto_id);
+
return py_new_output_id;
err:
return SRD_TERM_EITHER_EDGE;
case 'n':
return SRD_TERM_NO_EDGE;
+ default:
+ return -1;
}
return -1;
/* A channelmap value of -1 means "unused optional channel". */
if (di->dec_channelmap[i] == -1) {
/* Value of unused channel is 0xff, instead of 0 or 1. */
- PyTuple_SetItem(py_pinvalues, i, PyLong_FromLong(0xff));
+ PyTuple_SetItem(py_pinvalues, i, PyLong_FromUnsignedLong(0xff));
} else {
sample_pos = di->inbuf + ((di->abs_cur_samplenum - di->abs_start_samplenum) * di->data_unitsize);
byte_offset = di->dec_channelmap[i] / 8;
bit_offset = di->dec_channelmap[i] % 8;
sample = *(sample_pos + byte_offset) & (1 << bit_offset) ? 1 : 0;
- PyTuple_SetItem(py_pinvalues, i, PyLong_FromLong(sample));
+ PyTuple_SetItem(py_pinvalues, i, PyLong_FromUnsignedLong(sample));
}
}
*
* If there are no terms in the condition, 'term_list' will be NULL.
*
+ * @param di The decoder instance to use. Must not be NULL.
* @param py_dict A Python dict containing terms. Must not be NULL.
* @param term_list Pointer to a GSList which will be set to the newly
* created list of terms. Must not be NULL.
*
* @return SRD_OK upon success, a negative error code otherwise.
*/
-static int create_term_list(PyObject *py_dict, GSList **term_list)
+static int create_term_list(struct srd_decoder_inst *di,
+ PyObject *py_dict, GSList **term_list)
{
Py_ssize_t pos = 0;
PyObject *py_key, *py_value;
struct srd_term *term;
- uint64_t num_samples_to_skip;
+ int64_t num_samples_to_skip;
char *term_str;
PyGILState_STATE gstate;
/* Check whether the current key is a string or a number. */
if (PyLong_Check(py_key)) {
/* The key is a number. */
- /* TODO: Check if the number is a valid channel. */
/* Get the value string. */
if ((py_pydictitem_as_str(py_dict, py_key, &term_str)) != SRD_OK) {
srd_err("Failed to get the value.");
term = g_malloc(sizeof(struct srd_term));
term->type = get_term_type(term_str);
term->channel = PyLong_AsLong(py_key);
+ if (term->channel < 0 || term->channel >= di->dec_num_channels)
+ term->type = SRD_TERM_ALWAYS_FALSE;
g_free(term_str);
} else if (PyUnicode_Check(py_key)) {
/* The key is a string. */
- /* TODO: Check if it's "skip". */
+ /* TODO: Check if the key is "skip". */
if ((py_pydictitem_as_long(py_dict, py_key, &num_samples_to_skip)) != SRD_OK) {
srd_err("Failed to get number of samples to skip.");
goto err;
term->type = SRD_TERM_SKIP;
term->num_samples_to_skip = num_samples_to_skip;
term->num_samples_already_skipped = 0;
+ if (num_samples_to_skip < 0)
+ term->type = SRD_TERM_ALWAYS_FALSE;
} else {
srd_err("Term key is neither a string nor a number.");
goto err;
num_conditions = PyList_Size(py_conditionlist);
if (num_conditions == 0)
goto ret_9999; /* The PD invoked self.wait([]). */
- Py_IncRef(py_conditionlist);
+ Py_INCREF(py_conditionlist);
} else if (PyDict_Check(py_conds)) {
/* 'py_conds' is a dict. */
if (PyDict_Size(py_conds) == 0)
goto ret_9999; /* The PD invoked self.wait({}). */
/* Make a list and put the dict in there for convenience. */
py_conditionlist = PyList_New(1);
- Py_IncRef(py_conds);
+ Py_INCREF(py_conds);
PyList_SetItem(py_conditionlist, 0, py_conds);
num_conditions = 1;
} else {
}
/* Create the list of terms in this condition. */
- if ((ret = create_term_list(py_dict, &term_list)) < 0)
+ if ((ret = create_term_list(di, py_dict, &term_list)) < 0)
break;
/* Add the new condition to the PD instance's condition list. */
unsigned int i;
gboolean found_match;
struct srd_decoder_inst *di;
- PyObject *py_pinvalues, *py_matched;
+ PyObject *py_pinvalues, *py_matched, *py_samplenum;
PyGILState_STATE gstate;
if (!self || !args)
* while the termination request still gets signalled.
*/
found_match = FALSE;
- ret = process_samples_until_condition_match(di, &found_match);
+
+ /* Ignore return value for now, should never be negative. */
+ (void)process_samples_until_condition_match(di, &found_match);
Py_END_ALLOW_THREADS
/* If there's a match, set self.samplenum etc. and return. */
if (found_match) {
/* Set self.samplenum to the (absolute) sample number that matched. */
- PyObject_SetAttrString(di->py_inst, "samplenum",
- PyLong_FromLong(di->abs_cur_samplenum));
+ py_samplenum = PyLong_FromUnsignedLongLong(di->abs_cur_samplenum);
+ PyObject_SetAttrString(di->py_inst, "samplenum", py_samplenum);
+ Py_DECREF(py_samplenum);
if (di->match_array && di->match_array->len > 0) {
py_matched = PyTuple_New(di->match_array->len);
for (i = 0; i < di->match_array->len; i++)
PyTuple_SetItem(py_matched, i, PyBool_FromLong(di->match_array->data[i]));
PyObject_SetAttrString(di->py_inst, "matched", py_matched);
+ Py_DECREF(py_matched);
match_array_free(di);
} else {
PyObject_SetAttrString(di->py_inst, "matched", Py_None);
}
static PyMethodDef Decoder_methods[] = {
- {"put", Decoder_put, METH_VARARGS,
- "Accepts a dictionary with the following keys: startsample, endsample, data"},
- {"register", (PyCFunction)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"},
+ { "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}
};