From: Oliver Hartkopp <socketcan@hartkopp.net>
Date: Fri, 26 Feb 2010 08:38:47 +0000 (+0000)
Subject: When sending a sequence, we need to resend the same frame when poll() returns.
X-Git-Url: https://rtime.felk.cvut.cz/gitweb/sojka/can-utils.git/commitdiff_plain/afa14f102dfd8f1f17f512e2aa3c6b0e9883626d

When sending a sequence, we need to resend the same frame when poll() returns.
Fixed that to be a valid data source e.g. for ptx cansequence.
---

diff --git a/cangen.c b/cangen.c
index df6b77f..898068b 100644
--- a/cangen.c
+++ b/cangen.c
@@ -341,6 +341,7 @@ int main(int argc, char **argv)
 				fprint_canframe(stdout, &frame, "\n", 1);
 		}
 
+resend:
 		nbytes = write(s, &frame, sizeof(struct can_frame));
 		if (nbytes < 0) {
 			if (errno != ENOBUFS) {
@@ -356,7 +357,8 @@ int main(int argc, char **argv)
 				if (poll(&fds, 1, polltimeout) < 0) {
 					perror("poll");
 					return 1;
-				}
+				} else
+					goto resend;
 			} else
 				enobufs_count++;