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https://git.kernel.org/pub/scm/network/wireless/iwd.git
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21bebbd581
The purpose of these files is to encapsulate all of the display related functionality
99 lines
2.2 KiB
C
99 lines
2.2 KiB
C
/*
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*
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* Wireless daemon for Linux
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*
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* Copyright (C) 2017 Intel Corporation. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <ell/ell.h>
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#include <readline/history.h>
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#include <readline/readline.h>
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#include <stdio.h>
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#include "display.h"
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#define IWD_PROMPT COLOR_GREEN "[iwd]" COLOR_OFF "# "
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#define LINE_LEN 81
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static struct l_queue *display_types;
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static struct l_io *io;
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static char dashed_line[LINE_LEN];
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static char empty_line[LINE_LEN];
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static void readline_callback(char *prompt)
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{
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l_free(prompt);
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}
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static bool read_handler(struct l_io *io, void *user_data)
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{
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rl_callback_read_char();
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return true;
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}
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static void disconnect_callback(struct l_io *io, void *user_data)
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{
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l_main_exit();
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}
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void display_enable_cmd_prompt(void)
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{
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io = l_io_new(fileno(stdin));
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l_io_set_read_handler(io, read_handler, NULL, NULL);
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l_io_set_disconnect_handler(io, disconnect_callback, NULL, NULL);
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rl_set_prompt(IWD_PROMPT);
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}
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void display_disable_cmd_prompt(void)
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{
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rl_set_prompt("");
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rl_crlf();
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}
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void display_init(void)
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{
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memset(&dashed_line, '-', sizeof(dashed_line) - 1);
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memset(&empty_line, ' ', sizeof(empty_line) - 1);
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display_types = l_queue_new();
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setlinebuf(stdout);
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rl_erase_empty_line = 1;
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rl_callback_handler_install("Waiting for IWD to appear...",
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readline_callback);
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rl_redisplay();
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}
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void display_exit(void)
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{
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rl_callback_handler_remove();
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l_io_destroy(io);
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l_queue_destroy(display_types, NULL);
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display_types = NULL;
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}
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