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[PATCH v2 3/4] proc: Don't buffer Mach console output
From: |
Sergey Bugaev |
Subject: |
[PATCH v2 3/4] proc: Don't buffer Mach console output |
Date: |
Mon, 15 May 2023 10:35:59 +0300 |
Normally glibc does not buffer tty output, but a devstream backed by
the Mach console device cannot be isatty'ed. So we need to ask glibc
explicitly to not buffer it. This is what the startup and mach-defpager
do already.
---
proc/main.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/proc/main.c b/proc/main.c
index 8a2dc9ff..747646ef 100644
--- a/proc/main.c
+++ b/proc/main.c
@@ -132,6 +132,7 @@ open_console (mach_port_t device_master)
stdin = mach_open_devstream (cons, "r");
stdout = stderr = mach_open_devstream (cons, "w");
+ setbuf (stdout, NULL);
got_console = 1;
mach_port_deallocate (mach_task_self (), cons);
--
2.40.1