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authorMichael I. Bushnell <mib@gnu.org>1995-06-14 17:37:33 +0000
committerMichael I. Bushnell <mib@gnu.org>1995-06-14 17:37:33 +0000
commitfb1a7dfcd5a6b86cd50ee0e77d6d5a5abd48dc8f (patch)
treeec14064cc40d7e0ed41680a21cd941021226f26f /libfshelp/set-active.c
parent823f76c165f7fc1ef2961a2f47560fb7ca91a286 (diff)
Initial revision
Diffstat (limited to 'libfshelp/set-active.c')
-rw-r--r--libfshelp/set-active.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/libfshelp/set-active.c b/libfshelp/set-active.c
new file mode 100644
index 00000000..1671d09a
--- /dev/null
+++ b/libfshelp/set-active.c
@@ -0,0 +1,34 @@
+/*
+ Copyright (C) 1995 Free Software Foundation, Inc.
+ Written by Michael I. Bushnell.
+
+ This file is part of the GNU Hurd.
+
+ The GNU Hurd is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ The GNU Hurd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include "fshelp.h"
+
+error_t
+fshelp_set_active (struct transbox *box,
+ mach_port_t active)
+{
+ mutex_lock (&box->innerlock); /* cancellation point XXX */
+ if (box->active != MACH_PORT_NULL)
+ mach_port_deallocate (mach_task_self (), box->active);
+ box->active = active;
+ mutex_unlock (&box->innerlock);
+ return 0;
+}
+