session: Allow multiple poll FDs per event source

[libsigrok.git] / src / libsigrok-internal.h

diff --git a/src/libsigrok-internal.h b/src/libsigrok-internal.h
index 7023c491cb1591fbfdec85dcdc25757fed41f619..86a6326a76f52e881315cea54f3ccdb9b26084bd 100644 (file)
--- a/src/libsigrok-internal.h
+++ b/src/libsigrok-internal.h
@@ -722,10 +722,11 @@ struct sr_session {
        gboolean running;
 
        /*
-        * Each I/O source has an entry with the same index in both "sources"
-        * and "pollfds". The "sources" array may be larger than "pollfds",
-        * in which case the excess sources are pure timer sources.
-        * We can not embed the GPollFD into the source struct since we want
+        * Event sources and poll FDs are stored in the same order in the
+        * the sources and pollfds arrays. However, each source may cover
+        * any number of associated poll FDs, so the indices do not match.
+        *
+        * We cannot embed the GPollFD into the source struct since we want
         * to be able to pass the array of all poll descriptors to g_poll().
         */
        GArray *sources;
@@ -743,8 +744,11 @@ struct sr_session {
 };
 
 SR_PRIV int sr_session_source_add_internal(struct sr_session *session,
-               GPollFD *pollfd, int timeout, sr_receive_data_callback cb,
-               void *cb_data, gintptr poll_object, gboolean is_usb);
+               const GPollFD *pollfds, int num_fds, int timeout,
+               sr_receive_data_callback cb, void *cb_data,
+               gintptr poll_object);
+SR_PRIV int sr_session_source_remove_internal(struct sr_session *session,
+               gintptr poll_object);
 SR_PRIV int sr_session_send(const struct sr_dev_inst *sdi,
                const struct sr_datafeed_packet *packet);
 SR_PRIV int sr_session_stop_sync(struct sr_session *session);