constify srd_decoder_list() output

[libsigrokdecode.git] / controller.c

diff --git a/controller.c b/controller.c
index 8a01d32e6d570968fff5177c012a3ab481830c0f..c265ae7fe0d305af9cd4cb2a2b307eff1b091123 100644 (file)
--- a/controller.c
+++ b/controller.c
@@ -35,7 +35,8 @@ static GSList *callbacks = NULL;
 extern SRD_PRIV GSList *pd_list;
 
 /* module_sigrokdecode.c */
-extern SRD_PRIV PyMODINIT_FUNC PyInit_sigrokdecode(void);
+/* FIXME: SRD_PRIV causes issues on MinGW. Investigate. */
+extern PyMODINIT_FUNC PyInit_sigrokdecode(void);
 
 /* type_logic.c */
 extern SRD_PRIV PyTypeObject srd_logic_type;
@@ -329,9 +330,9 @@ static gint compare_probe_id(const struct srd_probe *a, const char *probe_id)
  * it overwrites any probes that were already defined (if any).
  *
  * @param di Decoder instance.
- * @param probes A GHashTable of probes to set. Key is probe name, value is
- *               the probe number. Samples passed to this instance will be
- *               arranged in this order.
+ * @param new_probes A GHashTable of probes to set. Key is probe name, value is
+ *                   the probe number. Samples passed to this instance will be
+ *                   arranged in this order.
  *
  * @return SRD_OK upon success, a (negative) error code otherwise.
  */
@@ -343,6 +344,7 @@ SRD_API int srd_inst_probe_set_all(struct srd_decoder_inst *di,
        struct srd_probe *p;
        int *new_probemap, new_probenum;
        char *probe_id, *probenum_str;
+       int i, num_required_probes;
 
        srd_dbg("set probes called for instance %s with list of %d probes",
                di->inst_id, g_hash_table_size(new_probes));
@@ -365,6 +367,13 @@ SRD_API int srd_inst_probe_set_all(struct srd_decoder_inst *di,
                return SRD_ERR_MALLOC;
        }
 
+       /*
+        * For now, map all indexes to probe -1 (can be overridden later).
+        * This -1 is interpreted as an unspecified probe later.
+        */
+       for (i = 0; i < di->dec_num_probes; i++)
+               new_probemap[i] = -1;
+
        for (l = g_hash_table_get_keys(new_probes); l; l = l->next) {
                probe_id = l->data;
                probenum_str = g_hash_table_lookup(new_probes, probe_id);
@@ -389,9 +398,17 @@ SRD_API int srd_inst_probe_set_all(struct srd_decoder_inst *di,
                }
                p = sl->data;
                new_probemap[p->order] = new_probenum;
-               srd_dbg("setting probe mapping for %d = probe %d", p->order,
-                       new_probenum);
+               srd_dbg("Setting probe mapping: %s (index %d) = probe %d.",
+                       p->id, p->order, new_probenum);
+       }
+
+       srd_dbg("Final probe map:");
+       num_required_probes = g_slist_length(di->decoder->probes);
+       for (i = 0; i < di->dec_num_probes; i++) {
+               srd_dbg(" - index %d = probe %d (%s)", i, new_probemap[i],
+                       (i < num_required_probes) ? "required" : "optional");
        }
+
        g_free(di->dec_probemap);
        di->dec_probemap = new_probemap;
 
@@ -401,9 +418,9 @@ SRD_API int srd_inst_probe_set_all(struct srd_decoder_inst *di,
 /**
  * Create a new protocol decoder instance.
  *
- * @param id Decoder 'id' field.
+ * @param decoder_id Decoder 'id' field.
  * @param options GHashtable of options which override the defaults set in
- *                the decoder class.
+ *                the decoder class. May be NULL.
  *
  * @return Pointer to a newly allocated struct srd_decoder_inst, or
  *         NULL in case of failure.
@@ -428,10 +445,13 @@ SRD_API struct srd_decoder_inst *srd_inst_new(const char *decoder_id,
                return NULL;
        }
 
-       inst_id = g_hash_table_lookup(options, "id");
        di->decoder = dec;
-       di->inst_id = g_strdup(inst_id ? inst_id : decoder_id);
-       g_hash_table_remove(options, "id");
+       if (options) {
+               inst_id = g_hash_table_lookup(options, "id");
+               di->inst_id = g_strdup(inst_id ? inst_id : decoder_id);
+               g_hash_table_remove(options, "id");
+       } else
+               di->inst_id = g_strdup(decoder_id);
 
        /*
         * Prepare a default probe map, where samples come in the
@@ -460,7 +480,7 @@ SRD_API struct srd_decoder_inst *srd_inst_new(const char *decoder_id,
                return NULL;
        }
 
-       if (srd_inst_option_set(di, options) != SRD_OK) {
+       if (options && srd_inst_option_set(di, options) != SRD_OK) {
                g_free(di->dec_probemap);
                g_free(di);
                return NULL;
@@ -716,6 +736,8 @@ SRD_API int srd_session_start(int num_probes, int unitsize, uint64_t samplerate)
        struct srd_decoder_inst *di;
        int ret;
 
+       ret = SRD_OK;
+
        srd_dbg("Calling start() on all instances with %d probes, "
                "unitsize %d samplerate %d.", num_probes, unitsize, samplerate);
 
@@ -734,7 +756,7 @@ SRD_API int srd_session_start(int num_probes, int unitsize, uint64_t samplerate)
                di->data_num_probes = num_probes;
                di->data_unitsize = unitsize;
                di->data_samplerate = samplerate;
-               if ((ret = srd_inst_start(di, args) != SRD_OK))
+               if ((ret = srd_inst_start(di, args)) != SRD_OK)
                        break;
        }
 
@@ -748,7 +770,7 @@ SRD_API int srd_session_start(int num_probes, int unitsize, uint64_t samplerate)
  *
  * @param start_samplenum The sample number of the first sample in this chunk.
  * @param inbuf Pointer to sample data.
- * @param inbuf Length in bytes of the buffer.
+ * @param inbuflen Length in bytes of the buffer.
  *
  * @return SRD_OK upon success, a (negative) error code otherwise.
  */