From 9889bf3d70bd140e06e1624e1a445c22b51a0eae Mon Sep 17 00:00:00 2001
From: leitner <leitner>
Date: Sat, 24 Apr 2021 11:44:17 +0000
Subject: [PATCH] better test

---
 t.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/t.c b/t.c
index af2e3a8..71dbe88 100644
--- a/t.c
+++ b/t.c
@@ -121,13 +121,15 @@ int main(int argc,char* argv[]) {
   io_wantread(pfd[1]);
   size_t totalread = 0;
   size_t totalwrite = 0;
-  for (; iob_bytesleft(b) ;) {
+  for (;;) {
     io_wait();
     int fd;
     while ((fd = io_canwrite()) != -1) {
 //      printf("write event on fd %d\n", fd);
       long r = iob_send(pfd[0], b);
       if (r > 0) totalwrite += r;
+      if (r == 0)
+	io_dontwantwrite(pfd[0]);
       printf("r = %d (sum written %zu, total back size %zu)\n", r, totalwrite, total);
     }
     while ((fd = io_canread()) != -1) {
@@ -135,6 +137,10 @@ int main(int argc,char* argv[]) {
       ssize_t r = read(fd, buf, sizeof buf);
       if (r > 0) totalread += r;
       if (r < sizeof buf) io_eagain(fd);
+      if (r == 0 || totalread == total) {
+	printf("read %zu bytes total\n", totalread);
+	return totalread == total;
+      }
     }
   }