* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "config.h"
#include <sigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
#include <stdio.h>
#include <string.h>
#include <dirent.h>
-#include <config.h>
/* Re-define some string functions for Python >= 3.0. */
#if PY_VERSION_HEX >= 0x03000000
* Py_XDECREF()ing it (someone else will do it for you at some point).
*/
+static int srd_load_decoder(const char *name, struct srd_decoder **dec);
+
/**
* Initialize libsigrokdecode.
*
- * @return SIGROKDECODE_OK upon success, a (negative) error code otherwise.
+ * @return SRD_OK upon success, a (negative) error code otherwise.
*/
-int sigrokdecode_init(void)
+int srd_init(void)
{
DIR *dir;
struct dirent *dp;
- char *tmp;
+ char *decodername;
+ struct srd_decoder *dec;
+ int ret;
/* Py_Initialize() returns void and usually cannot fail. */
Py_Initialize();
"sys.path.append(r'" DECODERS_DIR "');");
if (!(dir = opendir(DECODERS_DIR)))
- return SIGROKDECODE_ERR_DECODERS_DIR;
+ return SRD_ERR_DECODERS_DIR;
while ((dp = readdir(dir)) != NULL) {
if (!g_str_has_suffix(dp->d_name, ".py"))
continue;
- /* For now use the filename (without .py) as decoder name. */
- if ((tmp = g_strndup(dp->d_name, strlen(dp->d_name) - 3)))
- list_pds = g_slist_append(list_pds, tmp);
+
+ /* Decoder name == filename (without .py suffix). */
+ decodername = g_strndup(dp->d_name, strlen(dp->d_name) - 3);
+
+ /* TODO: Error handling. */
+ dec = malloc(sizeof(struct srd_decoder));
+
+ /* Load the decoder. */
+ ret = srd_load_decoder(decodername, &dec);
+
+ /* Append it to the list of supported/loaded decoders. */
+ list_pds = g_slist_append(list_pds, dec);
}
closedir(dir);
- return SIGROKDECODE_OK;
+ return SRD_OK;
}
/**
*
* @return List of decoders, NULL if none are supported or loaded.
*/
-GSList *sigrokdecode_list_decoders(void)
+GSList *srd_list_decoders(void)
{
return list_pds;
}
+/**
+ * Get the decoder with the specified ID.
+ *
+ * @param id The ID string of the decoder to return.
+ * @return The decoder with the specified ID, or NULL if not found.
+ */
+struct srd_decoder *srd_get_decoder_by_id(const char *id)
+{
+ GSList *l;
+ struct srd_decoder *dec;
+
+ for (l = srd_list_decoders(); l; l = l->next) {
+ dec = l->data;
+ if (!strcmp(dec->id, id))
+ return dec;
+ }
+
+ return NULL;
+}
+
/**
* Helper function to handle Python strings.
*
* TODO: @param entries.
*
- * @return SIGROKDECODE_OK upon success, a (negative) error code otherwise.
+ * @return SRD_OK upon success, a (negative) error code otherwise.
* The 'outstr' argument points to a malloc()ed string upon success.
*/
static int h_str(PyObject *py_res, PyObject *py_func, PyObject *py_mod,
py_str = PyMapping_GetItemString(py_res, (char *)key);
if (!py_str || !PyString_Check(py_str)) {
- ret = SIGROKDECODE_ERR_PYTHON; /* TODO: More specific error? */
+ ret = SRD_ERR_PYTHON; /* TODO: More specific error? */
goto err_h_decref_func;
}
* must not be free()'d.
*/
if (!(str = PyString_AsString(py_str))) {
- ret = SIGROKDECODE_ERR_PYTHON; /* TODO: More specific error? */
+ ret = SRD_ERR_PYTHON; /* TODO: More specific error? */
goto err_h_decref_str;
}
- if (!(*outstr = strdup(str))) {
- ret = SIGROKDECODE_ERR_MALLOC;
+ if (!(*outstr = g_strdup(str))) {
+ ret = SRD_ERR_MALLOC;
goto err_h_decref_str;
}
Py_XDECREF(py_str);
- return SIGROKDECODE_OK;
+ return SRD_OK;
err_h_decref_str:
Py_XDECREF(py_str);
*
* @param name TODO
*
- * @return SIGROKDECODE_OK upon success, a (negative) error code otherwise.
+ * @return SRD_OK upon success, a (negative) error code otherwise.
*/
-int sigrokdecode_load_decoder(const char *name,
- struct sigrokdecode_decoder **dec)
+static int srd_load_decoder(const char *name,
+ struct srd_decoder **dec)
{
- struct sigrokdecode_decoder *d;
+ struct srd_decoder *d;
PyObject *py_mod, *py_func, *py_res /* , *py_tuple */;
int r;
/* "Import" the Python module. */
if (!(py_mod = PyImport_ImportModule(name))) { /* NEWREF */
PyErr_Print(); /* Returns void. */
- return SIGROKDECODE_ERR_PYTHON; /* TODO: More specific error? */
+ return SRD_ERR_PYTHON; /* TODO: More specific error? */
}
/* Get the 'register' function name as Python callable object. */
if (PyErr_Occurred())
PyErr_Print(); /* Returns void. */
Py_XDECREF(py_mod);
- return SIGROKDECODE_ERR_PYTHON; /* TODO: More specific error? */
+ return SRD_ERR_PYTHON; /* TODO: More specific error? */
}
/* Call the 'register' function without arguments, get the result. */
PyErr_Print(); /* Returns void. */
Py_XDECREF(py_func);
Py_XDECREF(py_mod);
- return SIGROKDECODE_ERR_PYTHON; /* TODO: More specific error? */
+ return SRD_ERR_PYTHON; /* TODO: More specific error? */
}
- if (!(d = malloc(sizeof(struct sigrokdecode_decoder))))
- return SIGROKDECODE_ERR_MALLOC;
+ if (!(d = malloc(sizeof(struct srd_decoder))))
+ return SRD_ERR_MALLOC;
if ((r = h_str(py_res, py_func, py_mod, "id", &(d->id))) < 0)
return r;
if ((r = h_str(py_res, py_func, py_mod, "name", &(d->name))) < 0)
return r;
+ if ((r = h_str(py_res, py_func, py_mod, "longname",
+ &(d->longname))) < 0)
+ return r;
+
if ((r = h_str(py_res, py_func, py_mod, "desc", &(d->desc))) < 0)
return r;
+ if ((r = h_str(py_res, py_func, py_mod, "longdesc",
+ &(d->longdesc))) < 0)
+ return r;
+
+ if ((r = h_str(py_res, py_func, py_mod, "author", &(d->author))) < 0)
+ return r;
+
+ if ((r = h_str(py_res, py_func, py_mod, "email", &(d->email))) < 0)
+ return r;
+
+ if ((r = h_str(py_res, py_func, py_mod, "license", &(d->license))) < 0)
+ return r;
+
d->py_mod = py_mod;
Py_XDECREF(py_res);
if (PyErr_Occurred())
PyErr_Print(); /* Returns void. */
Py_XDECREF(py_mod);
- return SIGROKDECODE_ERR_PYTHON; /* TODO: More specific error? */
+ return SRD_ERR_PYTHON; /* TODO: More specific error? */
}
d->py_func = py_func;
- /* TODO: Handle inputformats, outputformats. */
+ /* TODO: Handle func, inputformats, outputformats. */
+ /* Note: They must at least be set to NULL, will segfault otherwise. */
+ d->func = NULL;
+ d->inputformats = NULL;
+ d->outputformats = NULL;
*dec = d;
- return SIGROKDECODE_OK;
+ return SRD_OK;
}
/**
* @param outbuf TODO
* @param outbuflen TODO
*
- * @return SIGROKDECODE_OK upon success, a (negative) error code otherwise.
+ * @return SRD_OK upon success, a (negative) error code otherwise.
*/
-int sigrokdecode_run_decoder(struct sigrokdecode_decoder *dec,
+int srd_run_decoder(struct srd_decoder *dec,
uint8_t *inbuf, uint64_t inbuflen,
uint8_t **outbuf, uint64_t *outbuflen)
{
/* Return an error upon unusable input. */
if (dec == NULL)
- return SIGROKDECODE_ERR_ARGS; /* TODO: More specific error? */
+ return SRD_ERR_ARGS; /* TODO: More specific error? */
if (inbuf == NULL)
- return SIGROKDECODE_ERR_ARGS; /* TODO: More specific error? */
+ return SRD_ERR_ARGS; /* TODO: More specific error? */
if (inbuflen == 0) /* No point in working on empty buffers. */
- return SIGROKDECODE_ERR_ARGS; /* TODO: More specific error? */
+ return SRD_ERR_ARGS; /* TODO: More specific error? */
if (outbuf == NULL)
- return SIGROKDECODE_ERR_ARGS; /* TODO: More specific error? */
+ return SRD_ERR_ARGS; /* TODO: More specific error? */
if (outbuflen == NULL)
- return SIGROKDECODE_ERR_ARGS; /* TODO: More specific error? */
+ return SRD_ERR_ARGS; /* TODO: More specific error? */
/* TODO: Error handling. */
py_mod = dec->py_mod;
/* Create a Python tuple of size 1. */
if (!(py_args = PyTuple_New(1))) { /* NEWREF */
- ret = SIGROKDECODE_ERR_PYTHON; /* TODO: More specific error? */
+ ret = SRD_ERR_PYTHON; /* TODO: More specific error? */
goto err_run_decref_func;
}
/* Get the input buffer as Python "string" (byte array). */
/* TODO: int vs. uint64_t for 'inbuflen'? */
if (!(py_value = Py_BuildValue("s#", inbuf, inbuflen))) { /* NEWREF */
- ret = SIGROKDECODE_ERR_PYTHON; /* TODO: More specific error? */
+ ret = SRD_ERR_PYTHON; /* TODO: More specific error? */
goto err_run_decref_args;
}
* It will automatically be free'd when the 'py_args' tuple is free'd.
*/
if (PyTuple_SetItem(py_args, 0, py_value) != 0) { /* STEAL */
- ret = SIGROKDECODE_ERR_PYTHON; /* TODO: More specific error? */
+ ret = SRD_ERR_PYTHON; /* TODO: More specific error? */
Py_XDECREF(py_value); /* TODO: Ref. stolen upon error? */
goto err_run_decref_args;
}
if (!(py_res = PyObject_CallObject(py_func, py_args))) { /* NEWREF */
- ret = SIGROKDECODE_ERR_PYTHON; /* TODO: More specific error? */
+ ret = SRD_ERR_PYTHON; /* TODO: More specific error? */
goto err_run_decref_args;
}
if ((r = PyObject_AsCharBuffer(py_res, (const char **)outbuf,
(Py_ssize_t *)outbuflen))) {
- ret = SIGROKDECODE_ERR_PYTHON; /* TODO: More specific error? */
+ ret = SRD_ERR_PYTHON; /* TODO: More specific error? */
Py_XDECREF(py_res);
goto err_run_decref_args;
}
- ret = SIGROKDECODE_OK;
+ ret = SRD_OK;
Py_XDECREF(py_res);
return ret;
}
+/**
+ * TODO
+ */
+static int srd_unload_decoder(struct srd_decoder *dec)
+{
+ g_free(dec->id);
+ g_free(dec->name);
+ g_free(dec->desc);
+ g_free(dec->func);
+
+ /* TODO: Free everything in inputformats and outputformats. */
+
+ if (dec->inputformats != NULL)
+ g_slist_free(dec->inputformats);
+ if (dec->outputformats != NULL)
+ g_slist_free(dec->outputformats);
+
+ Py_XDECREF(dec->py_func);
+ Py_XDECREF(dec->py_mod);
+
+ return SRD_OK;
+}
+
+/**
+ * TODO
+ */
+static int srd_unload_all_decoders(void)
+{
+ GSList *l;
+ struct srd_decoder *dec;
+
+ for (l = srd_list_decoders(); l; l = l->next) {
+ dec = l->data;
+ /* TODO: Error handling. */
+ srd_unload_decoder(dec);
+ }
+
+ return SRD_OK;
+}
+
/**
* Shutdown libsigrokdecode.
*
- * @return SIGROKDECODE_OK upon success, a (negative) error code otherwise.
+ * @return SRD_OK upon success, a (negative) error code otherwise.
*/
-int sigrokdecode_shutdown(void)
+int srd_exit(void)
{
+ /* Unload/free all decoders, and then the list of decoders itself. */
+ /* TODO: Error handling. */
+ srd_unload_all_decoders();
+ g_slist_free(list_pds);
+
/* Py_Finalize() returns void, any finalization errors are ignored. */
Py_Finalize();
- return SIGROKDECODE_OK;
+ return SRD_OK;
}