From 6650b7100b58d9f81ae5117d03e89dc97f142897 Mon Sep 17 00:00:00 2001 From: Stefan Weil Date: Thu, 7 Oct 2010 18:55:48 +0200 Subject: [PATCH] win32: Set unbuffered stdout Win32 does not support line-buffering, but it allows unbuffered output. Unbuffered output is a good approximation. For typical output statements which usually end with '\n', it's even identical. Buffered output is unusable for program traces because of its large delay. Cc: Blue Swirl Signed-off-by: Stefan Weil Signed-off-by: Blue Swirl --- os-win32.c | 6 ++++++ qemu-os-win32.h | 3 +-- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/os-win32.c b/os-win32.c index dd46bf459d..3c6f50fa94 100644 --- a/os-win32.c +++ b/os-win32.c @@ -221,6 +221,12 @@ char *os_find_datadir(const char *argv0) return NULL; } +void os_set_line_buffering(void) +{ + setbuf(stdout, NULL); + setbuf(stderr, NULL); +} + /* * Parse OS specific command line options. * return 0 if option handled, -1 otherwise diff --git a/qemu-os-win32.h b/qemu-os-win32.h index 2ff9f45a6c..c63778d2fc 100644 --- a/qemu-os-win32.h +++ b/qemu-os-win32.h @@ -45,8 +45,7 @@ void os_host_main_loop_wait(int *timeout); static inline void os_setup_signal_handling(void) {} static inline void os_daemonize(void) {} static inline void os_setup_post(void) {} -/* Win32 doesn't support line-buffering and requires size >= 2 */ -static inline void os_set_line_buffering(void) {} +void os_set_line_buffering(void); static inline void os_set_proc_name(const char *dummy) {} #if !defined(EPROTONOSUPPORT) -- 2.39.2