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authoravg <avg@FreeBSD.org>2011-12-17 15:08:43 +0000
committeravg <avg@FreeBSD.org>2011-12-17 15:08:43 +0000
commitf6def40e18a13286043257337db12d9d78aa545e (patch)
treecf89ca64a6042918d5429b9a17cfaa8421be34c2 /sys/gdb
parent04ff721cff67dd3e641289f950656b9dbd02d09f (diff)
downloadFreeBSD-src-f6def40e18a13286043257337db12d9d78aa545e.zip
FreeBSD-src-f6def40e18a13286043257337db12d9d78aa545e.tar.gz
kern cons: introduce infrastructure for console grabbing by kernel
At the moment grab and ungrab methods of all console drivers are no-ops. Current intended meaning of the calls is that the kernel takes control of console input. In the future the semantics may be extended to mean that the calling thread takes full ownership of the console (e.g. console output from other threads could be suspended). Inspired by: bde MFC after: 2 months
Diffstat (limited to 'sys/gdb')
-rw-r--r--sys/gdb/gdb_cons.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/sys/gdb/gdb_cons.c b/sys/gdb/gdb_cons.c
index 2e01cd4..6ecdc04 100644
--- a/sys/gdb/gdb_cons.c
+++ b/sys/gdb/gdb_cons.c
@@ -87,6 +87,16 @@ gdb_cnterm(struct consdev *cp)
{
}
+static void
+gdb_cngrab(struct consdev *cp)
+{
+}
+
+static void
+gdb_cnungrab(struct consdev *cp)
+{
+}
+
static int
gdb_cngetc(struct consdev *cp)
{
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