From e452303c664c3facfebe39539da0d796029bc603 Mon Sep 17 00:00:00 2001
From: Andreas Kling <awesomekling@gmail.com>
Date: Tue, 15 Jan 2019 09:17:22 +0100
Subject: Allow character devices to block write attempts until there is more
 space.

---
 Kernel/TTY.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'Kernel/TTY.h')

diff --git a/Kernel/TTY.h b/Kernel/TTY.h
index 8d92f89391..b739d55e17 100644
--- a/Kernel/TTY.h
+++ b/Kernel/TTY.h
@@ -13,6 +13,7 @@ public:
     virtual ssize_t read(byte*, size_t) override;
     virtual ssize_t write(const byte*, size_t) override;
     virtual bool has_data_available_for_reading(Process&) const override;
+    virtual bool can_write(Process&) const override;
     virtual int ioctl(Process&, unsigned request, unsigned arg) override final;
 
     virtual String tty_name() const = 0;
-- 
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