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1 | /* | |
2 | * This file is part of the sigrok-cli project. | |
3 | * | |
4 | * Copyright (C) 2011 Bert Vermeulen <bert@biot.com> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <config.h> | |
21 | #include <stdio.h> | |
22 | #ifdef _WIN32 | |
23 | #include <windows.h> | |
24 | #else | |
25 | #include <termios.h> | |
26 | #include <unistd.h> | |
27 | #endif | |
28 | #include <string.h> | |
29 | #include <glib.h> | |
30 | #include "sigrok-cli.h" | |
31 | ||
32 | #ifdef _WIN32 | |
33 | static HANDLE stdin_handle; | |
34 | static DWORD stdin_mode; | |
35 | #else | |
36 | static struct termios term_orig; | |
37 | #endif | |
38 | static unsigned int watch_id = 0; | |
39 | ||
40 | static gboolean received_anykey(GIOChannel *source, | |
41 | GIOCondition condition, void *data) | |
42 | { | |
43 | struct sr_session *session; | |
44 | ||
45 | (void)source; | |
46 | (void)condition; | |
47 | session = data; | |
48 | ||
49 | watch_id = 0; | |
50 | sr_session_stop(session); | |
51 | ||
52 | return G_SOURCE_REMOVE; | |
53 | } | |
54 | ||
55 | /* Turn off buffering on stdin and watch for input. | |
56 | */ | |
57 | void add_anykey(struct sr_session *session) | |
58 | { | |
59 | GIOChannel *channel; | |
60 | ||
61 | #ifdef _WIN32 | |
62 | stdin_handle = GetStdHandle(STD_INPUT_HANDLE); | |
63 | ||
64 | if (!GetConsoleMode(stdin_handle, &stdin_mode)) { | |
65 | /* TODO: Error handling. */ | |
66 | } | |
67 | SetConsoleMode(stdin_handle, 0); | |
68 | ||
69 | channel = g_io_channel_win32_new_fd(0); | |
70 | #else | |
71 | struct termios term; | |
72 | ||
73 | tcgetattr(STDIN_FILENO, &term); | |
74 | memcpy(&term_orig, &term, sizeof(struct termios)); | |
75 | term.c_lflag &= ~(ECHO | ICANON | ISIG); | |
76 | tcsetattr(STDIN_FILENO, TCSADRAIN, &term); | |
77 | ||
78 | channel = g_io_channel_unix_new(STDIN_FILENO); | |
79 | #endif | |
80 | g_io_channel_set_encoding(channel, NULL, NULL); | |
81 | g_io_channel_set_buffered(channel, FALSE); | |
82 | ||
83 | watch_id = g_io_add_watch(channel, G_IO_IN, &received_anykey, session); | |
84 | g_io_channel_unref(channel); | |
85 | ||
86 | g_message("Press any key to stop acquisition."); | |
87 | } | |
88 | ||
89 | /* Remove the event watch and restore stdin attributes. | |
90 | */ | |
91 | void clear_anykey(void) | |
92 | { | |
93 | if (watch_id != 0) { | |
94 | g_source_remove(watch_id); | |
95 | watch_id = 0; | |
96 | } | |
97 | #ifdef _WIN32 | |
98 | SetConsoleMode(stdin_handle, stdin_mode); | |
99 | #else | |
100 | tcflush(STDIN_FILENO, TCIFLUSH); | |
101 | tcsetattr(STDIN_FILENO, TCSANOW, &term_orig); | |
102 | #endif | |
103 | } |