X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=decoder.c;h=60bd4868d3faba2ca926a8f22a48e55d84a79e23;hp=f6032f59b65830a64654a67c98a48d706b88a7bb;hb=ef36224880135a05d2fbde8f048ea3fe3f425df9;hpb=22c9bc2a4e958fccf498f4480965ec03884bc058

diff --git a/decoder.c b/decoder.c
index f6032f5..60bd486 100644
--- a/decoder.c
+++ b/decoder.c
@@ -42,6 +42,10 @@
 /* The list of protocol decoders. */
 SRD_PRIV GSList *pd_list = NULL;
 
+/* srd.c */
+extern GSList *searchpaths;
+
+/* session.c */
 extern GSList *sessions;
 
 /* module_sigrokdecode.c */
@@ -250,7 +254,7 @@ SRD_API int srd_decoder_load(const char *module_name)
 		*py_bin_classes, *py_bin_class;
 	struct srd_decoder *d;
 	int len, ret, i;
-	char **ann, *bin;
+	char **ann, **bin;
 	struct srd_probe *p;
 	GSList *l;
 
@@ -260,6 +264,11 @@ SRD_API int srd_decoder_load(const char *module_name)
 	if (!module_name)
 		return SRD_ERR_ARG;
 
+	if (PyDict_GetItemString(PyImport_GetModuleDict(), module_name)) {
+		/* Module was already imported. */
+		return SRD_OK;
+	}
+
 	srd_dbg("Loading protocol decoder '%s'.", module_name);
 
 	py_basedec = py_method = py_attr = NULL;
@@ -372,21 +381,20 @@ SRD_API int srd_decoder_load(const char *module_name)
 	if (PyObject_HasAttrString(d->py_dec, "annotations")) {
 		py_annlist = PyObject_GetAttrString(d->py_dec, "annotations");
 		if (!PyList_Check(py_annlist)) {
-			srd_err("Protocol decoder module %s annotations "
-				"should be a list.", module_name);
+			srd_err("Protocol decoder %s annotations should "
+					"be a list.", module_name);
 			goto err_out;
 		}
 		len = PyList_Size(py_annlist);
 		for (i = 0; i < len; i++) {
 			py_ann = PyList_GetItem(py_annlist, i);
 			if (!PyList_Check(py_ann) || PyList_Size(py_ann) != 2) {
-				srd_err("Protocol decoder module %s "
-					"annotation %d should be a list with "
-					"two elements.", module_name, i + 1);
+				srd_err("Protocol decoder %s annotation %d should "
+						"be a list with two elements.", module_name, i + 1);
 				goto err_out;
 			}
 
-			if (py_strlist_to_char(py_ann, &ann) != SRD_OK) {
+			if (py_strseq_to_char(py_ann, &ann) != SRD_OK) {
 				goto err_out;
 			}
 			d->annotations = g_slist_append(d->annotations, ann);
@@ -398,20 +406,27 @@ SRD_API int srd_decoder_load(const char *module_name)
 	if (PyObject_HasAttrString(d->py_dec, "binary")) {
 		py_bin_classes = PyObject_GetAttrString(d->py_dec, "binary");
 		if (!PyTuple_Check(py_bin_classes)) {
-			srd_err("Protocol decoder module %s binary classes "
-				"should be a tuple.", module_name);
+			srd_err("Protocol decoder %s binary classes should "
+					"be a tuple.", module_name);
 			goto err_out;
 		}
 		len = PyTuple_Size(py_bin_classes);
 		for (i = 0; i < len; i++) {
 			py_bin_class = PyTuple_GetItem(py_bin_classes, i);
-			if (!PyUnicode_Check(py_bin_class)) {
-				srd_err("Protocol decoder module %s binary "
-						"class should be a string.", module_name);
+			if (!PyTuple_Check(py_bin_class)) {
+				srd_err("Protocol decoder %s binary classes "
+						"should consist of tuples.", module_name);
+				goto err_out;
+			}
+			if (PyTuple_Size(py_bin_class) != 2
+					|| !PyUnicode_Check(PyTuple_GetItem(py_bin_class, 0))
+					|| !PyUnicode_Check(PyTuple_GetItem(py_bin_class, 1))) {
+				srd_err("Protocol decoder %s binary classes should "
+						"contain tuples with two strings.", module_name);
 				goto err_out;
 			}
 
-			if (py_str_as_str(py_bin_class, &bin) != SRD_OK) {
+			if (py_strseq_to_char(py_bin_class, &bin) != SRD_OK) {
 				goto err_out;
 			}
 			d->binary = g_slist_append(d->binary, bin);
@@ -551,6 +566,26 @@ SRD_API int srd_decoder_unload(struct srd_decoder *dec)
 	return SRD_OK;
 }
 
+static void srd_decoder_load_all_path(char *path)
+{
+	GDir *dir;
+	const gchar *direntry;
+
+	if (!(dir = g_dir_open(path, 0, NULL)))
+		/* Not really fatal */
+		return;
+
+	/* This ignores errors returned by srd_decoder_load(). That
+	 * function will have logged the cause, but in any case we
+	 * want to continue anyway. */
+	while ((direntry = g_dir_read_name(dir)) != NULL) {
+		/* The directory name is the module name (e.g. "i2c"). */
+		srd_decoder_load(direntry);
+	}
+	g_dir_close(dir);
+
+}
+
 /**
  * Load all installed protocol decoders.
  *
@@ -560,23 +595,13 @@ SRD_API int srd_decoder_unload(struct srd_decoder *dec)
  */
 SRD_API int srd_decoder_load_all(void)
 {
-	GDir *dir;
-	GError *error;
-	const gchar *direntry;
+	GSList *l;
 
 	if (!srd_check_init())
 		return SRD_ERR;
 
-	if (!(dir = g_dir_open(DECODERS_DIR, 0, &error))) {
-		srd_err("Unable to open %s for reading.", DECODERS_DIR);
-		return SRD_ERR_DECODERS_DIR;
-	}
-
-	while ((direntry = g_dir_read_name(dir)) != NULL) {
-		/* The directory name is the module name (e.g. "i2c"). */
-		srd_decoder_load(direntry);
-	}
-	g_dir_close(dir);
+	for (l = searchpaths; l; l = l->next)
+		srd_decoder_load_all_path(l->data);
 
 	return SRD_OK;
 }
@@ -597,6 +622,8 @@ SRD_API int srd_decoder_unload_all(void)
 		dec = l->data;
 		srd_decoder_unload(dec);
 	}
+	g_slist_free(pd_list);
+	pd_list = NULL;
 
 	return SRD_OK;
 }