patch-2.1.93 linux/include/linux/devpts_fs.h

• Lines: 70
• Date: Sat Apr 4 09:45:19 1998
• Orig file: v2.1.92/linux/include/linux/devpts_fs.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.92/linux/include/linux/devpts_fs.h linux/include/linux/devpts_fs.h
@@ -0,0 +1,69 @@
+/* -*- linux-c -*- --------------------------------------------------------- *
+ *
+ * linux/include/linux/devpts_fs.h
+ *
+ *  Copyright 1998 H. Peter Anvin -- All Rights Reserved
+ *
+ * This file is part of the Linux kernel and is made available under
+ * the terms of the GNU General Public License, version 2, or at your
+ * option, any later version, incorporated herein by reference.
+ *
+ * ------------------------------------------------------------------------- */
+
+/*
+ * Prototypes for the pty driver <-> devpts filesystem interface.  Most
+ * of this is really just a hack so we can exclude it or build it as a
+ * module, and probably should go away eventually.
+ */
+
+#ifndef _LINUX_DEVPTS_FS_H
+#define _LINUX_DEVPTS_FS_H 1
+
+#include <linux/config.h>
+#include <linux/kdev_t.h>
+
+#ifdef CONFIG_DEVPTS_FS
+
+void devpts_pty_new(int, kdev_t);
+void devpts_pty_kill(int);
+
+#elif defined(CONFIG_DEVPTS_FS_MODULE)
+
+#ifdef BUILDING_PTY_C
+void (*devpts_upcall_new)(int,kdev_t) = NULL;
+void (*devpts_upcall_kill)(int)       = NULL;
+
+EXPORT_SYMBOL(devpts_upcall_new);
+EXPORT_SYMBOL(devpts_upcall_kill);
+#else
+extern void (*devpts_upcall_new)(int,kdev_t);
+extern void (*devpts_upcall_kill)(int);
+#endif
+
+#ifndef BUILDING_DEVPTS
+extern inline void
+devpts_pty_new(int line, kdev_t device)
+{
+	if ( devpts_upcall_new )
+		return devpts_upcall_new(line,device);
+}
+
+extern inline void
+devpts_pty_kill(int line)
+{
+	if ( devpts_upcall_kill )
+		return devpts_upcall_kill(line);
+}
+#endif
+
+#else  /* No /dev/pts filesystem at all */
+
+extern inline void
+devpts_pty_new(int line, kdev_t device) { }
+
+extern inline void
+devpts_pty_kill(int line) { }
+
+#endif
+
+#endif /* _LINUX_DEVPTS_FS_H */