X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=srd.c;h=e8fd7513e7b14a3679d4541279d2087045c3c93c;hp=b152e0c1637a82388821bad512d83d80200b637b;hb=37133b0acb35953176a777dc558e62c1c72ccaa9;hpb=d8d409590ce21116d85800c0eb8be287817a0eed

diff --git a/srd.c b/srd.c
index b152e0c..e8fd751 100644
--- a/srd.c
+++ b/srd.c
@@ -95,6 +95,55 @@ extern SRD_PRIV int max_session_id;
  * @{
  */
 
+static int searchpath_add_xdg_dir(const char *datadir)
+{
+	char *decdir;
+	int ret;
+
+	decdir = g_build_filename(datadir, PACKAGE_TARNAME, "decoders", NULL);
+
+	if (g_file_test(decdir, G_FILE_TEST_IS_DIR))
+		ret = srd_decoder_searchpath_add(decdir);
+	else
+		ret = SRD_OK; /* just ignore non-existing directory */
+
+	g_free(decdir);
+
+	return ret;
+}
+
+static void print_versions(void)
+{
+	GString *s;
+	GSList *l, *l_orig, *m;
+	char *str;
+	const char *lib, *version;
+
+	srd_dbg("libsigrokdecode %s/%s (rt: %s/%s).",
+		SRD_PACKAGE_VERSION_STRING, SRD_LIB_VERSION_STRING,
+		srd_package_version_string_get(), srd_lib_version_string_get());
+
+	s = g_string_sized_new(200);
+	g_string_append(s, "Libs: ");
+	l_orig = srd_buildinfo_libs_get();
+	for (l = l_orig; l; l = l->next) {
+		m = l->data;
+		lib = m->data;
+		version = m->next->data;
+		g_string_append_printf(s, "%s %s, ", lib, version);
+		g_slist_free_full(m, g_free);
+	}
+	g_slist_free(l_orig);
+	s->str[s->len - 2] = '.';
+	s->str[s->len - 1] = '\0';
+	srd_dbg("%s", s->str);
+	g_string_free(s, TRUE);
+
+	str = srd_buildinfo_host_get();
+	srd_dbg("Host: %s.", str);
+	g_free(str);
+}
+
 /**
  * Initialize libsigrokdecode.
  *
@@ -124,27 +173,48 @@ extern SRD_PRIV int max_session_id;
  */
 SRD_API int srd_init(const char *path)
 {
+	const char *const *sys_datadirs;
+	const char *env_path;
+	size_t i;
 	int ret;
-	char *env_path;
 
 	if (max_session_id != -1) {
 		srd_err("libsigrokdecode is already initialized.");
 		return SRD_ERR;
 	}
 
+	print_versions();
+
 	srd_dbg("Initializing libsigrokdecode.");
 
 	/* Add our own module to the list of built-in modules. */
 	PyImport_AppendInittab("sigrokdecode", PyInit_sigrokdecode);
 
 	/* Initialize the Python interpreter. */
-	Py_Initialize();
+	Py_InitializeEx(0);
 
-	/* Installed decoders. */
+	/* Locations relative to the XDG system data directories. */
+	sys_datadirs = g_get_system_data_dirs();
+	for (i = g_strv_length((char **)sys_datadirs); i > 0; i--) {
+		ret = searchpath_add_xdg_dir(sys_datadirs[i-1]);
+		if (ret != SRD_OK) {
+			Py_Finalize();
+			return ret;
+		}
+	}
+#ifdef DECODERS_DIR
+	/* Hardcoded decoders install location, if defined. */
 	if ((ret = srd_decoder_searchpath_add(DECODERS_DIR)) != SRD_OK) {
 		Py_Finalize();
 		return ret;
 	}
+#endif
+	/* Location relative to the XDG user data directory. */
+	ret = searchpath_add_xdg_dir(g_get_user_data_dir());
+	if (ret != SRD_OK) {
+		Py_Finalize();
+		return ret;
+	}
 
 	/* Path specified by the user. */
 	if (path) {
@@ -155,7 +225,7 @@ SRD_API int srd_init(const char *path)
 	}
 
 	/* Environment variable overrides everything, for debugging. */
-	if ((env_path = getenv("SIGROKDECODE_DIR"))) {
+	if ((env_path = g_getenv("SIGROKDECODE_DIR"))) {
 		if ((ret = srd_decoder_searchpath_add(env_path)) != SRD_OK) {
 			Py_Finalize();
 			return ret;
@@ -183,12 +253,9 @@ SRD_API int srd_init(const char *path)
  */
 SRD_API int srd_exit(void)
 {
-	GSList *l;
-
 	srd_dbg("Exiting libsigrokdecode.");
 
-	for (l = sessions; l; l = l->next)
-		srd_session_destroy((struct srd_session *)l->data);
+	g_slist_foreach(sessions, (GFunc)srd_session_destroy, NULL);
 
 	srd_decoder_unload_all();
 	g_slist_free_full(searchpaths, g_free);