X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=type_decoder.c;h=b04747e8f784716074b46462fbe5faa628cc8fca;hp=a61a475f29cfeef981d5cae1f5aacc36938c0117;hb=0102e92b4979de776cdabf50fcff69d8c95f30ca;hpb=35c10c0e24881de50b3391b1f3ecc9e43aa361b3 diff --git a/type_decoder.c b/type_decoder.c index a61a475..b04747e 100644 --- a/type_decoder.c +++ b/type_decoder.c @@ -22,13 +22,16 @@ #include "libsigrokdecode.h" #include +/** @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", @@ -37,6 +40,7 @@ static const char *output_type_name(unsigned int idx) "OUTPUT_META", "(invalid)" }; + return names[MIN(idx, G_N_ELEMENTS(names) - 1)]; } @@ -46,7 +50,6 @@ static void release_annotation(struct srd_proto_data_annotation *pda) return; if (pda->ann_text) g_strfreev(pda->ann_text); - g_free(pda); } static int convert_annotation(struct srd_decoder_inst *di, PyObject *obj, @@ -106,10 +109,9 @@ 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); @@ -125,9 +127,7 @@ 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, @@ -186,18 +186,17 @@ static int convert_binary(struct srd_decoder_inst *di, PyObject *obj, goto err; } - pdb = g_malloc(sizeof(struct srd_proto_data_binary)); if (PyBytes_AsStringAndSize(py_tmp, &buf, &size) == -1) goto err; PyGILState_Release(gstate); + pdb = pdata->data; pdb->bin_class = bin_class; pdb->size = size; 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; @@ -207,6 +206,65 @@ err: 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; @@ -215,7 +273,7 @@ static int convert_meta(struct srd_proto_data *pdata, PyObject *obj) 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."); @@ -225,7 +283,7 @@ static int convert_meta(struct srd_proto_data *pdata, PyObject *obj) 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."); @@ -261,6 +319,8 @@ static PyObject *Decoder_put(PyObject *self, PyObject *args) 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; uint64_t start_sample, end_sample; int output_id; struct srd_pd_callback *cb; @@ -293,9 +353,13 @@ static PyObject *Decoder_put(PyObject *self, PyObject *args) } 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; @@ -306,6 +370,7 @@ static PyObject *Decoder_put(PyObject *self, PyObject *args) 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. */ @@ -320,8 +385,11 @@ static PyObject *Decoder_put(PyObject *self, PyObject *args) 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))) { @@ -331,14 +399,17 @@ static PyObject *Decoder_put(PyObject *self, PyObject *args) 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. */ @@ -389,7 +460,7 @@ static PyObject *Decoder_register(PyObject *self, PyObject *args, 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; @@ -406,7 +477,7 @@ static PyObject *Decoder_register(PyObject *self, PyObject *args, 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, @@ -450,9 +521,6 @@ static PyObject *Decoder_register(PyObject *self, PyObject *args, 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. */ @@ -472,6 +540,10 @@ static PyObject *Decoder_register(PyObject *self, PyObject *args, 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: @@ -495,6 +567,8 @@ static int get_term_type(const char *v) return SRD_TERM_EITHER_EDGE; case 'n': return SRD_TERM_NO_EDGE; + default: + return -1; } return -1; @@ -834,7 +908,9 @@ static PyObject *Decoder_wait(PyObject *self, PyObject *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 @@ -952,14 +1028,14 @@ err: } 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)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} };