libsigrokdecode: Allow frontend to configure decoder probes.

[libsigrokdecode.git] / decode.c

diff --git a/decode.c b/decode.c
index 398a9f73c5e9ba4f24f7e66f8879745cf71b6a52..396cde8bb1b4bd819cfc614e5a73e0227b851ed0 100644 (file)
--- a/decode.c
+++ b/decode.c
@@ -284,6 +284,8 @@ static int srd_load_decoder(const char *name,
 struct srd_decoder_instance *srd_instance_new(const char *id)
 {
        struct srd_decoder *dec = srd_get_decoder_by_id(id);
+       if (!dec) 
+               return NULL;
        struct srd_decoder_instance *di = g_malloc(sizeof(*di));
        PyObject *py_args, *py_value;
 
@@ -317,6 +319,26 @@ struct srd_decoder_instance *srd_instance_new(const char *id)
        return di;
 }
 
+int srd_instance_set_probe(struct srd_decoder_instance *di,
+                               const char *probename, int num)
+{
+       PyObject *probedict, *probenum;
+       probedict = PyObject_GetAttrString(di->py_instance, "probes"); /* NEWREF */
+       if (!probedict) {
+               if (PyErr_Occurred())
+                       PyErr_Print(); /* Returns void. */
+               
+               return SRD_ERR_PYTHON; /* TODO: More specific error? */
+       }
+
+       probenum = PyInt_FromLong(num);
+       PyMapping_SetItemString(probedict, (char*)probename, probenum);
+
+       Py_XDECREF(probenum);
+       Py_XDECREF(probedict);
+       return SRD_OK;
+}
+
 /**
  * Run the specified decoder function.
  *
@@ -333,7 +355,7 @@ int srd_run_decoder(struct srd_decoder_instance *dec,
                             uint8_t **outbuf, uint64_t *outbuflen)
 {
        PyObject *py_instance, *py_value, *py_res;
-       int r, ret;
+       int ret;
        
        /* FIXME: Don't have a timebase available here. Make one up. */
        static int _timehack = 0;