diff options
author | Marcus Brinkmann <marcus@gnu.org> | 2002-06-05 02:00:32 +0000 |
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committer | Marcus Brinkmann <marcus@gnu.org> | 2002-06-05 02:00:32 +0000 |
commit | cb387b25d318025c67c422d509253d824a7764f1 (patch) | |
tree | 671b4093bcce8ffe84524a4b52be00fb762274f6 /console/input.h | |
parent | 94d1c5884949b21303e66b80c00c1690ec0d9d60 (diff) |
2002-06-05 Marcus Brinkmann <marcus@gnu.org>
* input.h: New file.
* input.c: Likewise.
* console.h: Likewise.
* console.c: Likewise.
* display.h: New development version.
* display.c: Likewise.
* Makefile (SRCS): Replace with files for new console server.
(LCLHDRS): Likewise.
(HURDLIBS): Likewise.
(OBJS): Likewise.
Diffstat (limited to 'console/input.h')
-rw-r--r-- | console/input.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/console/input.h b/console/input.h new file mode 100644 index 00000000..47de35e2 --- /dev/null +++ b/console/input.h @@ -0,0 +1,58 @@ +/* input.h - Interface to the input component of a virtual console. + Copyright (C) 2002 Free Software Foundation, Inc. + Written by Marcus Brinkmann. + + 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., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */ + +#ifndef INPUT_H +#define INPUT_H + +#include <errno.h> + +struct input; +typedef struct input *input_t; + +/* Create a new virtual console input queue, with the system encoding + being ENCODING. */ +error_t input_create (input_t *r_input, const char *encoding); + +/* Destroy the input queue INPUT. */ +void input_destroy (input_t input); + +/* Enter DATALEN characters from the buffer DATA into the input queue + INPUT. The DATA must be supplied in UTF-8 encoding (XXX UCS-4 + would be nice, too, but it requires knowledge of endianess). The + function returns the amount of bytes written (might be smaller than + DATALEN) or -1 and the error number in errno. If NONBLOCK is not + zero, return with -1 and set errno to EWOULDBLOCK if operation + would block for a long time. */ +ssize_t input_enqueue (input_t input, int nonblock, char *data, + size_t datalen); + +/* Remove DATALEN characters from the input queue and put them in the + buffer DATA. The data will be supplied in the local encoding. The + function returns the amount of bytes removed (might be smaller than + DATALEN) or -1 and the error number in errno. If NONBLOCK is not + zero, return with -1 and set errno to EWOULDBLOCK if operation + would block for a long time. */ +ssize_t input_dequeue (input_t input, int nonblock, char *data, + size_t datalen); + +/* Flush the input buffer, discarding all pending data. */ +void input_flush (input_t input); + +#endif /* INPUT_H */ |