From: Daniel Elstner <redacted>
Date: Tue, 22 Sep 2015 14:12:01 +0000 (+0200)
Subject: demo: Strictly round up the number of samples to send
X-Git-Tag: libsigrok-0.4.0~252
X-Git-Url: https://sigrok.org/gitweb/?a=commitdiff_plain;h=36cbd69e12d8957592c94420d98552bb00d67be6;hp=98c01fe1277e5a386377347635a8a7fee8abc534;p=libsigrok.git

demo: Strictly round up the number of samples to send

This avoids getting stuck when the time limit is less than
half of the sampling interval.
---

diff --git a/src/hardware/demo/demo.c b/src/hardware/demo/demo.c
index 6a1a2b2a..f0edbcab 100644
--- a/src/hardware/demo/demo.c
+++ b/src/hardware/demo/demo.c
@@ -770,7 +770,7 @@ static int prepare_data(int fd, int revents, void *cb_data)
 		todo_us = MAX(0, elapsed_us - devc->spent_us);
 
 	/* How many samples are outstanding since the last round? */
-	samples_todo = (todo_us * devc->cur_samplerate + G_USEC_PER_SEC / 2)
+	samples_todo = (todo_us * devc->cur_samplerate + G_USEC_PER_SEC - 1)
 			/ G_USEC_PER_SEC;
 	if (devc->limit_samples > 0) {
 		if (devc->limit_samples < devc->sent_samples)