#include <config.h>
#include "libsigrokdecode-internal.h" /* First, so we avoid a _POSIX_C_SOURCE warning. */
+/**
+ * Import a Python module by name.
+ *
+ * This function is implemented in terms of PyImport_Import() rather than
+ * PyImport_ImportModule(), so that the import hooks are not bypassed.
+ *
+ * @param[in] name The name of the module to load as UTF-8 string.
+ * @return The Python module object, or NULL if an exception occurred. The
+ * caller is responsible for evaluating and clearing the Python error state.
+ *
+ * @private
+ */
+SRD_PRIV PyObject *py_import_by_name(const char *name)
+{
+ PyObject *py_mod, *py_modname;
+
+ py_modname = PyUnicode_FromString(name);
+ if (!py_modname)
+ return NULL;
+
+ py_mod = PyImport_Import(py_modname);
+ Py_DECREF(py_modname);
+
+ return py_mod;
+}
+
/**
* Get the value of a Python object's attribute, returned as a newly
* allocated char *.
return py_str_as_str(py_value, outstr);
}
+/**
+ * Get the value of a Python dictionary item, returned as a newly
+ * allocated char *.
+ *
+ * @param py_obj The dictionary to probe.
+ * @param py_key Key of the item to retrieve.
+ * @param outstr Pointer to char * storage to be filled in.
+ *
+ * @return SRD_OK upon success, a (negative) error code otherwise.
+ * The 'outstr' argument points to a malloc()ed string upon success.
+ *
+ * @private
+ */
+SRD_PRIV int py_pydictitem_as_str(PyObject *py_obj, PyObject *py_key,
+ char **outstr)
+{
+ PyObject *py_value;
+
+ if (!py_obj || !py_key || !outstr)
+ return SRD_ERR_ARG;
+
+ if (!PyDict_Check(py_obj)) {
+ srd_dbg("Object is not a dictionary.");
+ return SRD_ERR_PYTHON;
+ }
+
+ if (!(py_value = PyDict_GetItem(py_obj, py_key))) {
+ srd_dbg("Dictionary has no such key.");
+ return SRD_ERR_PYTHON;
+ }
+
+ if (!PyUnicode_Check(py_value)) {
+ srd_dbg("Dictionary value should be a string.");
+ return SRD_ERR_PYTHON;
+ }
+
+ return py_str_as_str(py_value, outstr);
+}
+
+/**
+ * Get the value of a Python dictionary item, returned as a newly
+ * allocated char *.
+ *
+ * @param py_obj The dictionary to probe.
+ * @param py_key Key of the item to retrieve.
+ * @param out TODO.
+ *
+ * @return SRD_OK upon success, a (negative) error code otherwise.
+ *
+ * @private
+ */
+SRD_PRIV int py_pydictitem_as_long(PyObject *py_obj, PyObject *py_key, uint64_t *out)
+{
+ PyObject *py_value;
+
+ if (!py_obj || !py_key || !out)
+ return SRD_ERR_ARG;
+
+ if (!PyDict_Check(py_obj)) {
+ srd_dbg("Object is not a dictionary.");
+ return SRD_ERR_PYTHON;
+ }
+
+ if (!(py_value = PyDict_GetItem(py_obj, py_key))) {
+ srd_dbg("Dictionary has no such key.");
+ return SRD_ERR_PYTHON;
+ }
+
+ if (!PyLong_Check(py_value)) {
+ srd_dbg("Dictionary value should be a long.");
+ return SRD_ERR_PYTHON;
+ }
+
+ *out = PyLong_AsUnsignedLongLong(py_value);
+
+ return SRD_OK;
+}
+
/**
* Get the value of a Python unicode string object, returned as a newly
* allocated char *.
return SRD_ERR_PYTHON;
}
+
+/**
+ * Convert a Python scalar object to a GLib variant.
+ * Supported variant types are string, int64 and double.
+ *
+ * @param[in] py_obj The Python object. Must not be NULL.
+ * @return A floating reference to a new variant, or NULL on failure.
+ *
+ * @private
+ */
+SRD_PRIV GVariant *py_obj_to_variant(PyObject *py_obj)
+{
+ GVariant *var = NULL;
+
+ if (PyUnicode_Check(py_obj)) { /* string */
+ PyObject *py_bytes;
+ const char *str;
+
+ py_bytes = PyUnicode_AsUTF8String(py_obj);
+ if (py_bytes) {
+ str = PyBytes_AsString(py_bytes);
+ if (str)
+ var = g_variant_new_string(str);
+ Py_DECREF(py_bytes);
+ }
+ if (!var)
+ srd_exception_catch("Failed to extract string value");
+
+ } else if (PyLong_Check(py_obj)) { /* integer */
+ int64_t val;
+
+ val = PyLong_AsLongLong(py_obj);
+ if (!PyErr_Occurred())
+ var = g_variant_new_int64(val);
+ else
+ srd_exception_catch("Failed to extract integer value");
+
+ } else if (PyFloat_Check(py_obj)) { /* float */
+ double val;
+
+ val = PyFloat_AsDouble(py_obj);
+ if (!PyErr_Occurred())
+ var = g_variant_new_double(val);
+ else
+ srd_exception_catch("Failed to extract float value");
+
+ } else {
+ srd_err("Failed to extract value of unsupported type.");
+ }
+
+ return var;
+}