* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <config.h>
#include "libsigrokdecode-internal.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */
#include "libsigrokdecode.h"
-#include "config.h"
#include <glib.h>
/** @cond PRIVATE */
* @{
*/
+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;
+}
+
/**
* Initialize libsigrokdecode.
*
*/
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.");
/* Initialize the Python interpreter. */
Py_Initialize();
- /* 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) {
}
/* 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;
SRD_PRIV int srd_decoder_searchpath_add(const char *path)
{
PyObject *py_cur_path, *py_item;
- GString *new_path;
- int wc_len, i;
- wchar_t *wc_new_path;
- char *item;
srd_dbg("Adding '%s' to module path.", path);
- new_path = g_string_sized_new(256);
- g_string_assign(new_path, path);
py_cur_path = PySys_GetObject("path");
- for (i = 0; i < PyList_Size(py_cur_path); i++) {
- g_string_append(new_path, G_SEARCHPATH_SEPARATOR_S);
- py_item = PyList_GetItem(py_cur_path, i);
- if (!PyUnicode_Check(py_item))
- /* Shouldn't happen. */
- continue;
- if (py_str_as_str(py_item, &item) != SRD_OK)
- continue;
- g_string_append(new_path, item);
- g_free(item);
- }
+ if (!py_cur_path)
+ return SRD_ERR_PYTHON;
- /* Convert to wide chars. */
- wc_len = sizeof(wchar_t) * (new_path->len + 1);
- if (!(wc_new_path = g_try_malloc(wc_len))) {
- srd_dbg("malloc failed");
- return SRD_ERR_MALLOC;
+ py_item = PyUnicode_FromString(path);
+ if (!py_item) {
+ srd_exception_catch("Failed to create Unicode object");
+ return SRD_ERR_PYTHON;
}
- mbstowcs(wc_new_path, new_path->str, wc_len);
- PySys_SetPath(wc_new_path);
- g_string_free(new_path, TRUE);
- g_free(wc_new_path);
- searchpaths = g_slist_append(searchpaths, g_strdup(path));
+ if (PyList_Insert(py_cur_path, 0, py_item) < 0) {
+ srd_exception_catch("Failed to insert path element");
+ Py_DECREF(py_item);
+ return SRD_ERR_PYTHON;
+ }
+ Py_DECREF(py_item);
+
+ searchpaths = g_slist_prepend(searchpaths, g_strdup(path));
return SRD_OK;
}