]> sigrok.org Git - libsigrokdecode.git/blobdiff - decoder.c
type_decoder: update and extend Decoder base class doc strings
[libsigrokdecode.git] / decoder.c
index cef4f299aea927d76d64adbb8ba9dcc39a2bf927..0d266d4625618651deb38c73a4df4830b93f1e78 100644 (file)
--- a/decoder.c
+++ b/decoder.c
@@ -136,6 +136,18 @@ static void annotation_row_free(void *data)
        g_free(row);
 }
 
+static void logic_output_channel_free(void *data)
+{
+       struct srd_decoder_logic_output_channel *logic_out_ch = data;
+
+       if (!logic_out_ch)
+               return;
+
+       g_free(logic_out_ch->desc);
+       g_free(logic_out_ch->id);
+       g_free(logic_out_ch);
+}
+
 static void decoder_option_free(void *data)
 {
        struct srd_decoder_option *opt = data;
@@ -606,6 +618,79 @@ err_out:
        return SRD_ERR_PYTHON;
 }
 
+/* Convert logic_output_channels to GSList of 'struct srd_decoder_logic_output_channel'. */
+static int get_logic_output_channels(struct srd_decoder *dec)
+{
+       PyObject *py_logic_out_chs, *py_logic_out_ch, *py_item;
+       GSList *logic_out_chs;
+       struct srd_decoder_logic_output_channel *logic_out_ch;
+       ssize_t i;
+       PyGILState_STATE gstate;
+
+       gstate = PyGILState_Ensure();
+
+       if (!PyObject_HasAttrString(dec->py_dec, "logic_output_channels")) {
+               PyGILState_Release(gstate);
+               return SRD_OK;
+       }
+
+       logic_out_chs = NULL;
+
+       py_logic_out_chs = PyObject_GetAttrString(dec->py_dec, "logic_output_channels");
+       if (!py_logic_out_chs)
+               goto except_out;
+
+       if (!PyTuple_Check(py_logic_out_chs)) {
+               srd_err("Protocol decoder %s logic_output_channels "
+                       "must be a tuple.", dec->name);
+               goto err_out;
+       }
+
+       for (i = PyTuple_Size(py_logic_out_chs) - 1; i >= 0; i--) {
+               py_logic_out_ch = PyTuple_GetItem(py_logic_out_chs, i);
+               if (!py_logic_out_ch)
+                       goto except_out;
+
+               if (!PyTuple_Check(py_logic_out_ch) || PyTuple_Size(py_logic_out_ch) != 2) {
+                       srd_err("Protocol decoder %s logic_output_channels "
+                               "must contain only tuples of 2 elements.",
+                               dec->name);
+                       goto err_out;
+               }
+               logic_out_ch = g_malloc0(sizeof(*logic_out_ch));
+               /* Add to list right away so it doesn't get lost. */
+               logic_out_chs = g_slist_prepend(logic_out_chs, logic_out_ch);
+
+               py_item = PyTuple_GetItem(py_logic_out_ch, 0);
+               if (!py_item)
+                       goto except_out;
+               if (py_str_as_str(py_item, &logic_out_ch->id) != SRD_OK)
+                       goto err_out;
+
+               py_item = PyTuple_GetItem(py_logic_out_ch, 1);
+               if (!py_item)
+                       goto except_out;
+               if (py_str_as_str(py_item, &logic_out_ch->desc) != SRD_OK)
+                       goto err_out;
+       }
+       dec->logic_output_channels = logic_out_chs;
+       Py_DECREF(py_logic_out_chs);
+       PyGILState_Release(gstate);
+
+       return SRD_OK;
+
+except_out:
+       srd_exception_catch("Failed to get %s decoder logic output channels",
+                       dec->name);
+
+err_out:
+       g_slist_free_full(logic_out_chs, &logic_output_channel_free);
+       Py_XDECREF(py_logic_out_chs);
+       PyGILState_Release(gstate);
+
+       return SRD_ERR_PYTHON;
+}
+
 /* Check whether the Decoder class defines the named method. */
 static int check_method(PyObject *py_dec, const char *mod_name,
                const char *method_name)
@@ -668,6 +753,53 @@ SRD_PRIV long srd_decoder_apiver(const struct srd_decoder *d)
        return apiver;
 }
 
+static gboolean contains_duplicates(GSList *list)
+{
+       for (GSList *l1 = list; l1; l1 = l1->next) {
+               for (GSList *l2 = l1->next; l2; l2 = l2->next)
+                       if (!strcmp(l1->data, l2->data))
+                               return TRUE;
+       }
+
+       return FALSE;
+}
+
+static gboolean contains_duplicate_ids(GSList *list1, GSList *list2)
+{
+       for (GSList *l1 = list1; l1; l1 = l1->next) {
+               unsigned int cnt = 0;
+               const char **s1 = l1->data;
+               for (GSList *l2 = list2; l2; l2 = l2->next) {
+                       const char **s2 = l2->data;
+                       if (!strcmp(s1[0], s2[0]))
+                               cnt++;
+                       if ((list1 == list2) && cnt > 1)
+                               return TRUE;
+                       if ((list1 != list2) && cnt > 0)
+                               return TRUE;
+               }
+       }
+
+       return FALSE;
+}
+
+static gboolean contains_duplicate_row_ids(GSList *list1, GSList *list2)
+{
+       for (GSList *l1 = list1; l1; l1 = l1->next) {
+               unsigned int cnt = 0;
+               const struct srd_decoder_annotation_row *r1 = l1->data;
+               for (GSList *l2 = list2; l2; l2 = l2->next) {
+                       const struct srd_decoder_annotation_row *r2 = l2->data;
+                       if (!strcmp(r1->id, r2->id))
+                               cnt++;
+                       if (cnt > 1)
+                               return TRUE;
+               }
+       }
+
+       return FALSE;
+}
+
 /**
  * Load a protocol decoder module into the embedded Python interpreter.
  *
@@ -842,6 +974,66 @@ SRD_API int srd_decoder_load(const char *module_name)
                goto err_out;
        }
 
+       if (contains_duplicates(d->inputs)) {
+               fail_txt = "duplicate input IDs";
+               goto err_out;
+       }
+
+       if (contains_duplicates(d->outputs)) {
+               fail_txt = "duplicate output IDs";
+               goto err_out;
+       }
+
+       if (contains_duplicates(d->tags)) {
+               fail_txt = "duplicate tags";
+               goto err_out;
+       }
+
+       if (contains_duplicate_ids(d->channels, d->channels)) {
+               fail_txt = "duplicate channel IDs";
+               goto err_out;
+       }
+
+       if (contains_duplicate_ids(d->opt_channels, d->opt_channels)) {
+               fail_txt = "duplicate optional channel IDs";
+               goto err_out;
+       }
+
+       if (contains_duplicate_ids(d->channels, d->opt_channels)) {
+               fail_txt = "channel and optional channel IDs contain duplicates";
+               goto err_out;
+       }
+
+       if (contains_duplicate_ids(d->options, d->options)) {
+               fail_txt = "duplicate option IDs";
+               goto err_out;
+       }
+
+       if (contains_duplicate_ids(d->annotations, d->annotations)) {
+               fail_txt = "duplicate annotation class IDs";
+               goto err_out;
+       }
+
+       if (contains_duplicate_row_ids(d->annotation_rows, d->annotation_rows)) {
+               fail_txt = "duplicate annotation row IDs";
+               goto err_out;
+       }
+
+       if (contains_duplicate_ids(d->annotations, d->annotation_rows)) {
+               fail_txt = "annotation class/row IDs contain duplicates";
+               goto err_out;
+       }
+
+       if (contains_duplicate_ids(d->binary, d->binary)) {
+               fail_txt = "duplicate binary class IDs";
+               goto err_out;
+       }
+
+       if (get_logic_output_channels(d) != SRD_OK) {
+               fail_txt = "cannot get logic output channels";
+               goto err_out;
+       }
+
        PyGILState_Release(gstate);
 
        /* Append it to the list of loaded decoders. */