libusb_handle_events_timeout(ctx, tv)
#endif
+/* Static definitions of structs ending with an all-zero entry are a
+ * problem when compiling with -Wmissing-field-initializers: GCC
+ * suppresses the warning only with { 0 }, clang wants { } */
+#ifdef __clang__
+#define ALL_ZERO { }
+#else
+#define ALL_ZERO { 0 }
+#endif
+
struct sr_context {
#ifdef HAVE_LIBUSB_1_0
libusb_context *libusb_ctx;
#endif
};
+/** Input (file) module struct. */
+struct sr_input {
+ /**
+ * A pointer to this input module's 'struct sr_input_module'.
+ */
+ const struct sr_input_module *module;
+ GString *buf;
+ struct sr_dev_inst *sdi;
+ void *priv;
+};
+
+/** Input (file) module driver. */
+struct sr_input_module {
+ /**
+ * A unique ID for this output module, suitable for use in command-line
+ * clients, [a-z0-9-]. Must not be NULL.
+ */
+ const char *id;
+
+ /**
+ * A unique name for this output module, suitable for use in GUI
+ * clients, can contain UTF-8. Must not be NULL.
+ */
+ const char *name;
+
+ /**
+ * A short description of the output module. Must not be NULL.
+ *
+ * This can be displayed by frontends, e.g. when selecting the output
+ * module for saving a file.
+ */
+ const char *desc;
+
+ /**
+ * Zero-terminated list of metadata items the module needs to be able
+ * to identify an input stream. Can be all-zero, if the module cannot
+ * identify streams at all, i.e. has to be forced into use.
+ *
+ * Each item is one of:
+ * SR_INPUT_META_FILENAME
+ * SR_INPUT_META_FILESIZE
+ * SR_INPUT_META_HEADER
+ * SR_INPUT_META_MIMETYPE
+ *
+ * If the high bit (SR_INPUT META_REQUIRED) is set, the module cannot
+ * identify a stream without the given metadata.
+ */
+ const uint8_t metadata[8];
+
+ /**
+ * Returns a NULL-terminated list of options this module can take.
+ * Can be NULL, if the module has no options.
+ */
+ struct sr_option *(*options) (void);
+
+ /**
+ * Check if this input module can load and parse the specified stream.
+ *
+ * @param[in] metadata Metadata the module can use to identify the stream.
+ *
+ * @retval TRUE This module knows the format.
+ * @retval FALSE This module does not know the format.
+ */
+ int (*format_match) (GHashTable *metadata);
+
+ /**
+ * Initialize the input module.
+ *
+ * @param in A pointer to a valid 'struct sr_input' that the caller
+ * has to allocate and provide to this function. It is also
+ * the responsibility of the caller to free it later.
+ * @param[in] filename The name (and path) of the file to use.
+ *
+ * @retval SR_OK Success
+ * @retval other Negative error code.
+ */
+ int (*init) (struct sr_input *in, GHashTable *options);
+
+ /**
+ * Load a file, parsing the input according to the file's format.
+ *
+ * This function will send datafeed packets to the session bus, so
+ * the calling frontend must have registered its session callbacks
+ * beforehand.
+ *
+ * The packet types sent across the session bus by this function must
+ * include at least SR_DF_HEADER, SR_DF_END, and an appropriate data
+ * type such as SR_DF_LOGIC. It may also send a SR_DF_TRIGGER packet
+ * if appropriate.
+ *
+ * @param in A pointer to a valid 'struct sr_input' that the caller
+ * has to allocate and provide to this function. It is also
+ * the responsibility of the caller to free it later.
+ * @param f The name (and path) of the file to use.
+ *
+ * @retval SR_OK Success
+ * @retval other Negative error code.
+ */
+ int (*receive) (const struct sr_input *in, GString *buf);
+
+ /**
+ * This function is called after the caller is finished using
+ * the input module, and can be used to free any internal
+ * resources the module may keep.
+ *
+ * @retval SR_OK Success
+ * @retval other Negative error code.
+ */
+ int (*cleanup) (struct sr_input *in);
+};
+
/** Output module instance. */
struct sr_output {
/** A pointer to this output's module. */