From 69110b5cbe99a54937f108d239592e5afb55d008 Mon Sep 17 00:00:00 2001
From: Gerhard Sittig <gerhard.sittig@gmx.net>
Date: Sat, 25 Jul 2020 09:25:51 +0200
Subject: [PATCH] decode: start collecting internal state (samplerate)

Introduce variables which hold the internal state during decoder
operation so far. Start by adding a "samplerate used by protocol
decoders". This is motivated by the pending Google Trace Event
feature addition.
---
 decode.c     | 2 ++
 session.c    | 2 ++
 sigrok-cli.h | 1 +
 3 files changed, 5 insertions(+)

diff --git a/decode.c b/decode.c
index 0bf1d25..d277039 100644
--- a/decode.c
+++ b/decode.c
@@ -29,6 +29,8 @@ static GHashTable *pd_meta_visible = NULL;
 static GHashTable *pd_binary_visible = NULL;
 static GHashTable *pd_channel_maps = NULL;
 
+uint64_t pd_samplerate = 0;
+
 extern struct srd_session *srd_sess;
 
 static int opts_to_gvar(struct srd_decoder *dec, GHashTable *hash,
diff --git a/session.c b/session.c
index f154235..e8ec5a2 100644
--- a/session.c
+++ b/session.c
@@ -324,6 +324,7 @@ void datafeed_in(const struct sr_dev_inst *sdi,
 					g_critical("Failed to configure decode session.");
 					break;
 				}
+				pd_samplerate = samplerate;
 			}
 			if (srd_session_start(srd_sess) != SRD_OK) {
 				g_critical("Failed to start decode session.");
@@ -352,6 +353,7 @@ void datafeed_in(const struct sr_dev_inst *sdi,
 							g_variant_new_uint64(samplerate)) != SRD_OK) {
 						g_critical("Failed to pass samplerate to decoder.");
 					}
+					pd_samplerate = samplerate;
 				}
 #endif
 				break;
diff --git a/sigrok-cli.h b/sigrok-cli.h
index 8d26699..10e74de 100644
--- a/sigrok-cli.h
+++ b/sigrok-cli.h
@@ -87,6 +87,7 @@ int setup_binary_stdout(void);
 
 /* decode.c */
 #ifdef HAVE_SRD
+extern uint64_t pd_samplerate;
 int register_pds(gchar **all_pds, char *opt_pd_annotations);
 int setup_pd_annotations(char *opt_pd_annotations);
 int setup_pd_meta(char *opt_pd_meta);
-- 
2.11.4.GIT