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1 | /* |
1 | /* |
2 | * Copyright (c) 2008 Jiri Svoboda |
2 | * Copyright (c) 2008 Jiri Svoboda |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup cli cli |
29 | /** @addtogroup cli cli |
30 | * @brief Trivial command-line interface for running programs. |
30 | * @brief Trivial command-line interface for running programs. |
31 | * @{ |
31 | * @{ |
32 | */ |
32 | */ |
33 | /** |
33 | /** |
34 | * @file |
34 | * @file |
35 | */ |
35 | */ |
36 | 36 | ||
37 | #include <stdio.h> |
37 | #include <stdio.h> |
38 | #include <stdlib.h> |
38 | #include <stdlib.h> |
39 | #include <task.h> |
39 | #include <task.h> |
40 | 40 | ||
41 | #define LINE_BUFFER_SIZE 128 |
41 | #define LINE_BUFFER_SIZE 128 |
42 | static char line_buffer[LINE_BUFFER_SIZE]; |
42 | static char line_buffer[LINE_BUFFER_SIZE]; |
43 | 43 | ||
44 | #define MAX_ARGS 16 |
44 | #define MAX_ARGS 16 |
45 | static char *argv_buf[MAX_ARGS + 1]; |
45 | static char *argv_buf[MAX_ARGS + 1]; |
46 | 46 | ||
47 | static void read_line(char *buffer, int n) |
47 | static void read_line(char *buffer, int n) |
48 | { |
48 | { |
49 | char c; |
49 | char c; |
50 | int chars; |
50 | int chars; |
51 | 51 | ||
52 | printf("> "); |
52 | printf("> "); |
53 | 53 | ||
54 | chars = 0; |
54 | chars = 0; |
55 | while (chars < n - 1) { |
55 | while (chars < n - 1) { |
56 | c = getchar(); |
56 | c = getchar(); |
57 | if (c < 0) exit(0); |
57 | if (c < 0) exit(0); |
58 | if (c == '\n') break; |
58 | if (c == '\n') break; |
59 | if (c == '\b') { |
59 | if (c == '\b') { |
60 | if (chars > 0) { |
60 | if (chars > 0) { |
61 | putchar('\b'); |
61 | putchar('\b'); |
62 | --chars; |
62 | --chars; |
63 | } |
63 | } |
64 | continue; |
64 | continue; |
65 | } |
65 | } |
66 | 66 | ||
67 | putchar(c); |
67 | putchar(c); |
68 | buffer[chars++] = c; |
68 | buffer[chars++] = c; |
69 | } |
69 | } |
70 | 70 | ||
71 | putchar('\n'); |
71 | putchar('\n'); |
72 | buffer[chars] = '\0'; |
72 | buffer[chars] = '\0'; |
73 | } |
73 | } |
74 | 74 | ||
75 | static void program_run(void) |
75 | static void program_run(void) |
76 | { |
76 | { |
77 | char *p; |
77 | char *p; |
78 | int n; |
78 | int n; |
79 | 79 | ||
80 | p = line_buffer; |
80 | p = line_buffer; |
81 | n = 0; |
81 | n = 0; |
82 | 82 | ||
83 | while (n < MAX_ARGS) { |
83 | while (n < MAX_ARGS) { |
84 | argv_buf[n++] = p; |
84 | argv_buf[n++] = p; |
85 | p = strchr(p, ' '); |
85 | p = strchr(p, ' '); |
86 | if (p == NULL) break; |
86 | if (p == NULL) break; |
87 | 87 | ||
88 | *p++ = '\0'; |
88 | *p++ = '\0'; |
89 | } |
89 | } |
90 | argv_buf[n] = NULL; |
90 | argv_buf[n] = NULL; |
91 | 91 | ||
92 | printf("spawn task '%s' with %d args\n", argv_buf[0], n); |
92 | printf("spawn task '%s' with %d args\n", argv_buf[0], n); |
93 | printf("args:"); |
93 | printf("args:"); |
94 | int i; |
94 | int i; |
95 | for (i = 0; i < n; ++i) { |
95 | for (i = 0; i < n; ++i) { |
96 | printf(" '%s'", argv_buf[i]); |
96 | printf(" '%s'", argv_buf[i]); |
97 | } |
97 | } |
98 | printf("\n"); |
98 | printf("\n"); |
99 | 99 | ||
100 | task_spawn_ex(argv_buf[0], argv_buf); |
100 | task_spawn(argv_buf[0], argv_buf); |
101 | } |
101 | } |
102 | 102 | ||
103 | 103 | ||
104 | int main(int argc, char *argv[]) |
104 | int main(int argc, char *argv[]) |
105 | { |
105 | { |
106 | printf("This is CLI\n"); |
106 | printf("This is CLI\n"); |
107 | 107 | ||
108 | while (1) { |
108 | while (1) { |
109 | read_line(line_buffer, LINE_BUFFER_SIZE); |
109 | read_line(line_buffer, LINE_BUFFER_SIZE); |
110 | printf("'%s'\n", line_buffer); |
110 | printf("'%s'\n", line_buffer); |
111 | if (strcmp(line_buffer, "exit") == 0) |
111 | if (strcmp(line_buffer, "exit") == 0) |
112 | break; |
112 | break; |
113 | 113 | ||
114 | if (line_buffer[0] != '\0') |
114 | if (line_buffer[0] != '\0') |
115 | program_run(); |
115 | program_run(); |
116 | } |
116 | } |
117 | 117 | ||
118 | printf("Bye\n"); |
118 | printf("Bye\n"); |
119 | 119 | ||
120 | return 0; |
120 | return 0; |
121 | } |
121 | } |
122 | 122 | ||
123 | /** @} |
123 | /** @} |
124 | */ |
124 | */ |
125 | 125 | ||
126 | 126 |