diff mbox series

[v6,2/6] chardev/char.c: Use qemu_co_sleep_ns if in coroutine

Message ID 825997b334c98a48543df66ec3dd0caf670f6dc7.1590129793.git.lukasstraub2@web.de
State Superseded
Headers show
Series colo-compare bugfixes | expand

Commit Message

Lukas Straub May 22, 2020, 6:47 a.m. UTC 
This will be needed in the next patch so compare_chr_send can be
converted to a coroutine.

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Zhang Chen <chen.zhang@intel.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 chardev/char.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--
2.20.1
diff mbox series

Patch

diff --git a/chardev/char.c b/chardev/char.c
index e77564060d..5c8014199f 100644
--- a/chardev/char.c
+++ b/chardev/char.c
@@ -38,6 +38,7 @@ 
 #include "qemu/module.h"
 #include "qemu/option.h"
 #include "qemu/id.h"
+#include "qemu/coroutine.h"

 #include "chardev/char-mux.h"

@@ -119,7 +120,11 @@  static int qemu_chr_write_buffer(Chardev *s,
     retry:
         res = cc->chr_write(s, buf + *offset, len - *offset);
         if (res < 0 && errno == EAGAIN && write_all) {
-            g_usleep(100);
+            if (qemu_in_coroutine()) {
+                qemu_co_sleep_ns(QEMU_CLOCK_REALTIME, 100000);
+            } else {
+                g_usleep(100);
+            }
             goto retry;
         }