From: Soeren Apel <redacted>
Date: Fri, 8 Jan 2016 22:00:55 +0000 (+0100)
Subject: Trace32 import module: Send trigger only once
X-Git-Tag: libsigrok-0.4.0~26
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=a5be5d5bc008ebdab19b7ed2efe5e5a5b99bb349;p=libsigrok.git

Trace32 import module: Send trigger only once

As we're downsampling, several record time stamps can match the specified
trigger time. For this reason, it's possible that several trigger packets
are sent when a file is loaded. This prevents the issue and sends a
trigger packet only on the first matching record.
---

diff --git a/src/input/trace32_ad.c b/src/input/trace32_ad.c
index 06fc5214..81df295a 100644
--- a/src/input/trace32_ad.c
+++ b/src/input/trace32_ad.c
@@ -85,7 +85,7 @@ enum {
 
 struct context {
 	gboolean meta_sent;
-	gboolean header_read, records_read;
+	gboolean header_read, records_read, trigger_sent;
 	char format, device, record_mode, compression;
 	char pod_status[MAX_POD_COUNT];
 	struct sr_channel *channels[MAX_POD_COUNT][17]; /* 16 + CLK */
@@ -467,13 +467,14 @@ static void process_record_pi(struct sr_input *in, gsize start)
 		return;
 	}
 
-	if (timestamp == inc->trigger_timestamp) {
+	if (timestamp == inc->trigger_timestamp && !inc->trigger_sent) {
 		sr_dbg("Trigger @%lf s, record #%d.",
 			timestamp * TIMESTAMP_RESOLUTION, inc->cur_record);
 
 		packet.type = SR_DF_TRIGGER;
 		packet.payload = NULL;
 		sr_session_send(in->sdi, &packet);
+		inc->trigger_sent = TRUE;
 	}
 
 	/* Is this the last record in the file? */
@@ -519,13 +520,14 @@ static void process_record_iprobe(struct sr_input *in, gsize start)
 	single_payload[2] = R8(in->buf->str + start + 10) & 1;
 	payload_len = 3;
 
-	if (timestamp == inc->trigger_timestamp) {
+	if (timestamp == inc->trigger_timestamp && !inc->trigger_sent) {
 		sr_dbg("Trigger @%lf s, record #%d.",
 			timestamp * TIMESTAMP_RESOLUTION, inc->cur_record);
 
 		packet.type = SR_DF_TRIGGER;
 		packet.payload = NULL;
 		sr_session_send(in->sdi, &packet);
+		inc->trigger_sent = TRUE;
 	}
 
 	/* Is this the last record in the file? */