mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-13 00:46:55 +07:00
a7c8d58c79
Convert the tty_buffer_flush() exclusion mechanism to a public interface - tty_buffer_lock/unlock_exclusive() - and use the interface to safely write the paste selection to the line discipline. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
39 lines
1.4 KiB
C
39 lines
1.4 KiB
C
#ifndef _LINUX_TTY_FLIP_H
|
|
#define _LINUX_TTY_FLIP_H
|
|
|
|
extern int tty_buffer_space_avail(struct tty_port *port);
|
|
extern int tty_buffer_request_room(struct tty_port *port, size_t size);
|
|
extern int tty_insert_flip_string_flags(struct tty_port *port,
|
|
const unsigned char *chars, const char *flags, size_t size);
|
|
extern int tty_insert_flip_string_fixed_flag(struct tty_port *port,
|
|
const unsigned char *chars, char flag, size_t size);
|
|
extern int tty_prepare_flip_string(struct tty_port *port,
|
|
unsigned char **chars, size_t size);
|
|
extern int tty_prepare_flip_string_flags(struct tty_port *port,
|
|
unsigned char **chars, char **flags, size_t size);
|
|
extern void tty_flip_buffer_push(struct tty_port *port);
|
|
void tty_schedule_flip(struct tty_port *port);
|
|
|
|
static inline int tty_insert_flip_char(struct tty_port *port,
|
|
unsigned char ch, char flag)
|
|
{
|
|
struct tty_buffer *tb = port->buf.tail;
|
|
if (tb && tb->used < tb->size) {
|
|
*flag_buf_ptr(tb, tb->used) = flag;
|
|
*char_buf_ptr(tb, tb->used++) = ch;
|
|
return 1;
|
|
}
|
|
return tty_insert_flip_string_flags(port, &ch, &flag, 1);
|
|
}
|
|
|
|
static inline int tty_insert_flip_string(struct tty_port *port,
|
|
const unsigned char *chars, size_t size)
|
|
{
|
|
return tty_insert_flip_string_fixed_flag(port, chars, TTY_NORMAL, size);
|
|
}
|
|
|
|
extern void tty_buffer_lock_exclusive(struct tty_port *port);
|
|
extern void tty_buffer_unlock_exclusive(struct tty_port *port);
|
|
|
|
#endif /* _LINUX_TTY_FLIP_H */
|