X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=instance.c;h=075bf09e45a3298662a82068b8c186dfe643c40f;hp=c28ede9d72254e8e142e2af91acaf40a99f82b4d;hb=4f0d192d748e987af43ec5b811a643eb0a8601b2;hpb=7969d8035530d40753c4f880c90a4e90f9679ccc

diff --git a/instance.c b/instance.c
index c28ede9..075bf09 100644
--- a/instance.c
+++ b/instance.c
@@ -294,6 +294,7 @@ SRD_API int srd_inst_channel_set_all(struct srd_decoder_inst *di,
  * Create a new protocol decoder instance.
  *
  * @param sess The session holding the protocol decoder instance.
+ *             Must not be NULL.
  * @param decoder_id Decoder 'id' field.
  * @param options GHashtable of options which override the defaults set in
  *                the decoder class. May be NULL.
@@ -315,10 +316,8 @@ SRD_API struct srd_decoder_inst *srd_inst_new(struct srd_session *sess,
 	i = 1;
 	srd_dbg("Creating new %s instance.", decoder_id);
 
-	if (session_is_valid(sess) != SRD_OK) {
-		srd_err("Invalid session.");
+	if (!sess)
 		return NULL;
-	}
 
 	if (!(dec = srd_decoder_get_by_id(decoder_id))) {
 		srd_err("Protocol decoder %s not found.", decoder_id);
@@ -399,6 +398,7 @@ SRD_API struct srd_decoder_inst *srd_inst_new(struct srd_session *sess,
 	di->got_new_samples = FALSE;
 	di->handled_all_samples = FALSE;
 	di->want_wait_terminate = FALSE;
+	di->decoder_state = SRD_OK;
 
 	/*
 	 * Strictly speaking initialization of statically allocated
@@ -472,6 +472,7 @@ static void srd_inst_reset_state(struct srd_decoder_inst *di)
 	di->got_new_samples = FALSE;
 	di->handled_all_samples = FALSE;
 	di->want_wait_terminate = FALSE;
+	di->decoder_state = SRD_OK;
 	/* Conditions and mutex got reset after joining the thread. */
 }
 
@@ -479,6 +480,7 @@ static void srd_inst_reset_state(struct srd_decoder_inst *di)
  * Stack a decoder instance on top of another.
  *
  * @param sess The session holding the protocol decoder instances.
+ *             Must not be NULL.
  * @param di_bottom The instance on top of which di_top will be stacked.
  * @param di_top The instance to go on top.
  *
@@ -490,10 +492,8 @@ SRD_API int srd_inst_stack(struct srd_session *sess,
 		struct srd_decoder_inst *di_bottom,
 		struct srd_decoder_inst *di_top)
 {
-	if (session_is_valid(sess) != SRD_OK) {
-		srd_err("Invalid session.");
+	if (!sess)
 		return SRD_ERR_ARG;
-	}
 
 	if (!di_bottom || !di_top) {
 		srd_err("Invalid from/to instance pair.");
@@ -552,6 +552,7 @@ static struct srd_decoder_inst *srd_inst_find_by_id_stack(const char *inst_id,
  * given session.
  *
  * @param sess The session holding the protocol decoder instance.
+ *             Must not be NULL.
  * @param inst_id The instance ID to be found.
  *
  * @return Pointer to struct srd_decoder_inst, or NULL if not found.
@@ -564,10 +565,8 @@ SRD_API struct srd_decoder_inst *srd_inst_find_by_id(struct srd_session *sess,
 	GSList *l;
 	struct srd_decoder_inst *tmp, *di;
 
-	if (session_is_valid(sess) != SRD_OK) {
-		srd_err("Invalid session.");
+	if (!sess)
 		return NULL;
-	}
 
 	di = NULL;
 	for (l = sess->di_list; l; l = l->next) {
@@ -579,64 +578,6 @@ SRD_API struct srd_decoder_inst *srd_inst_find_by_id(struct srd_session *sess,
 	return di;
 }
 
-static 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 (session_is_valid(sess) != SRD_OK) {
-		srd_err("Invalid session.");
-		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.
- *
- * @private
- *
- * @since 0.1.0
- */
-SRD_PRIV 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;
-
-	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;
-}
-
 /**
  * Set the list of initial (assumed) pin values.
  *
@@ -776,7 +717,8 @@ SRD_PRIV int srd_inst_start(struct srd_decoder_inst *di)
  *
  * @private
  */
-static gboolean sample_matches(uint8_t old_sample, uint8_t sample, struct srd_term *term)
+__attribute__((always_inline))
+static inline gboolean sample_matches(uint8_t old_sample, uint8_t sample, struct srd_term *term)
 {
 	/* Caller ensures term != NULL. */
 
@@ -1092,6 +1034,9 @@ static gpointer di_thread(gpointer data)
 	py_res = PyObject_CallMethod(di->py_inst, "decode", NULL);
 	srd_dbg("%s: decode() method terminated.", di->inst_id);
 
+	if (!py_res)
+		di->decoder_state = SRD_ERR;
+
 	/*
 	 * Make sure to unblock potentially pending srd_inst_decode()
 	 * calls in application threads after the decode() method might
@@ -1332,7 +1277,7 @@ SRD_PRIV int srd_inst_terminate_reset(struct srd_decoder_inst *di)
 			return ret;
 	}
 
-	return SRD_OK;
+	return di->decoder_state;
 }
 
 /** @private */
@@ -1368,10 +1313,8 @@ SRD_PRIV void srd_inst_free(struct srd_decoder_inst *di)
 /** @private */
 SRD_PRIV void srd_inst_free_all(struct srd_session *sess)
 {
-	if (session_is_valid(sess) != SRD_OK) {
-		srd_err("Invalid session.");
+	if (!sess)
 		return;
-	}
 
 	g_slist_free_full(sess->di_list, (GDestroyNotify)srd_inst_free);
 }