-int sigrokdecode_init(void);
-int sigrokdecode_load_decoder_file(const char *name);
-int sigrokdecode_run_decoder(const char *decodername, uint8_t *inbuf,
- uint64_t inbuflen, uint8_t **outbuf,
- uint64_t *outbuflen);
-int sigrokdecode_shutdown(void);
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Status/error codes returned by libsigrokdecode functions.
+ *
+ * All possible return codes of libsigrokdecode functions must be listed here.
+ * Functions should never return hardcoded numbers as status, but rather
+ * use these #defines instead. All error codes are negative numbers.
+ *
+ * The error codes are globally unique in libsigrokdecode, i.e. if one of the
+ * libsigrokdecode functions returns a "malloc error" it must be exactly the
+ * same return value as used by all other functions to indicate "malloc error".
+ * There must be no functions which indicate two different errors via the
+ * same return code.
+ *
+ * Also, for compatibility reasons, no defined return codes are ever removed
+ * or reused for different #defines later. You can only add new #defines and
+ * return codes, but never remove or redefine existing ones.
+ */
+#define SRD_OK 0 /**< No error */
+#define SRD_ERR -1 /**< Generic/unspecified error */
+#define SRD_ERR_MALLOC -2 /**< Malloc/calloc/realloc error */
+#define SRD_ERR_ARGS -3 /**< Function argument error */
+#define SRD_ERR_PYTHON -4 /**< Python C API error */
+#define SRD_ERR_DECODERS_DIR -5 /**< Protocol decoder path invalid */
+
+/* TODO: Documentation. */
+struct srd_decoder {
+ /** The decoder ID. Must be non-NULL and unique for all decoders. */
+ char *id;
+
+ /** The (short) decoder name. */
+ char *name;
+
+ /** The (long) decoder name. May be NULL. */
+ char *longname;
+
+ /** A (short, one-line) description of the decoder. */
+ char *desc;
+
+ /** A (long, multi-line) description of the decoder. May be NULL. */
+ char *longdesc;
+
+ /** The author of the decoder. May be NULL. */
+ char *author;
+
+ /** An email address of the decoder's author. May be NULL. */
+ char *email;
+
+ /** The license of the decoder. Valid values: "gplv2+", "gplv3+". */
+ char *license;
+
+ /** TODO */
+ char *func;
+
+ /** TODO */
+ GSList *inputformats;
+
+ /** TODO */
+ GSList *outputformats;
+
+ /** TODO */
+ PyObject *py_mod;
+
+ /** Python object that performs the decoding */
+ PyObject *py_decobj;
+ PyObject *py_instance;
+};
+
+int srd_init(void);
+GSList *srd_list_decoders(void);
+struct srd_decoder *srd_get_decoder_by_id(const char *id);
+int srd_run_decoder(struct srd_decoder *dec, uint8_t *inbuf, uint64_t inbuflen,
+ uint8_t **outbuf, uint64_t *outbuflen);
+int srd_exit(void);
+
+#ifdef __cplusplus
+}
+#endif