libtf: stackable timeouts

instead of having per-function argument, use a push/pop mechanism:
- multiple timers inside fiber use only one heap entry
- easy to chain multiple possibly blocking operations inside one
  timeout block

1 files changed, 1 insertions, 1 deletions

diff --git a/test/read.c b/test/read.c
index 97f25fd..6d8306b 100644
--- a/test/read.c
+++ b/test/read.c
@@ -24,7 +24,7 @@ static void io_fiber(void *ptr)
 
 	tf_open_fd(&fin, STDIN_FILENO, TF_FD_STREAM_ORIENTED);
 	while (1) {
-		if (tf_read(&fin, data, sizeof(data), TF_NO_TIMEOUT) < 0)
+		if (tf_read_fully(&fin, data, sizeof(data)) < 0)
 			break;
 		printf("Read: %8.8s\n", data);
 	}