Move constant timeout to variable

1 files changed, 4 insertions, 3 deletions

diff --git a/wmsl.c b/wmsl.c
index e57ba16..47ea5a6 100644
--- a/wmsl.c
+++ b/wmsl.c
@@ -154,6 +154,7 @@ run_block(const char *cmd, pid_t *pid)
 bool
 read_block(int fd, char *buf, ssize_t size)
 {
+	const uint64_t timeout_ns = 1000000000;
 	struct timeval timeout;
 	struct timespec start, stop;
 	char tmp[256];
@@ -170,8 +171,8 @@ read_block(int fd, char *buf, ssize_t size)
 		FD_ZERO(&fdset);
 		FD_SET(fd, &fdset);
 
-		timeout.tv_sec = 0;
-		timeout.tv_usec = (1000000000 - ns) / 1000;
+		timeout.tv_sec = (timeout_ns - ns) / 1000000000;
+		timeout.tv_usec = (timeout_ns - ns) / 1000 % 1000000000;
 
 		ret = select(fd + 1, &fdset, NULL, NULL, &timeout);
 
@@ -196,7 +197,7 @@ read_block(int fd, char *buf, ssize_t size)
 			nread = read(fd, tmp, sizeof(tmp));
 			if (nread <= 0) break;
 		}
-	} while (ns < 1000000000);
+	} while (ns < timeout_ns);
 
 	return tok != NULL;
 }