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1 | /* |
1 | /* |
2 | * Copyright (C) 2006 Josef Cejka |
2 | * Copyright (c) 2006 Josef Cejka |
3 | * Copyright (C) 2006 Jakub Vana |
3 | * Copyright (c) 2006 Jakub Vana |
4 | * All rights reserved. |
4 | * All rights reserved. |
5 | * |
5 | * |
6 | * Redistribution and use in source and binary forms, with or without |
6 | * Redistribution and use in source and binary forms, with or without |
7 | * modification, are permitted provided that the following conditions |
7 | * modification, are permitted provided that the following conditions |
8 | * are met: |
8 | * are met: |
9 | * |
9 | * |
10 | * - Redistributions of source code must retain the above copyright |
10 | * - Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * - Redistributions in binary form must reproduce the above copyright |
12 | * - Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
14 | * documentation and/or other materials provided with the distribution. |
15 | * - The name of the author may not be used to endorse or promote products |
15 | * - The name of the author may not be used to endorse or promote products |
16 | * derived from this software without specific prior written permission. |
16 | * derived from this software without specific prior written permission. |
17 | * |
17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 | */ |
28 | */ |
29 | 29 | ||
30 | /** @addtogroup libc |
30 | /** @addtogroup libc |
31 | * @{ |
31 | * @{ |
32 | */ |
32 | */ |
33 | /** @file |
33 | /** @file |
34 | */ |
34 | */ |
35 | 35 | ||
36 | #include <io/io.h> |
36 | #include <io/io.h> |
37 | #include <io/stream.h> |
37 | #include <io/stream.h> |
38 | #include <string.h> |
38 | #include <string.h> |
39 | #include <malloc.h> |
39 | #include <malloc.h> |
40 | #include <libc.h> |
40 | #include <libc.h> |
41 | #include <ipc/ipc.h> |
41 | #include <ipc/ipc.h> |
42 | #include <ipc/ns.h> |
42 | #include <ipc/ns.h> |
43 | #include <ipc/fb.h> |
43 | #include <ipc/fb.h> |
44 | #include <ipc/services.h> |
44 | #include <ipc/services.h> |
45 | #include <console.h> |
45 | #include <console.h> |
46 | #include <unistd.h> |
46 | #include <unistd.h> |
47 | #include <async.h> |
47 | #include <async.h> |
48 | 48 | ||
49 | #define FDS 32 |
49 | #define FDS 32 |
50 | 50 | ||
51 | typedef struct stream_t { |
51 | typedef struct stream_t { |
52 | pwritefn_t w; |
52 | pwritefn_t w; |
53 | preadfn_t r; |
53 | preadfn_t r; |
54 | void * param; |
54 | void * param; |
55 | int phone; |
55 | int phone; |
56 | } stream_t; |
56 | } stream_t; |
57 | 57 | ||
58 | static int console_phone = -1; |
58 | static int console_phone = -1; |
59 | static stream_t streams[FDS]; |
59 | static stream_t streams[FDS]; |
60 | 60 | ||
61 | static ssize_t write_stderr(void *param, const void *buf, size_t count) |
61 | static ssize_t write_stderr(void *param, const void *buf, size_t count) |
62 | { |
62 | { |
63 | return count; |
63 | return count; |
64 | } |
64 | } |
65 | 65 | ||
66 | static ssize_t read_stdin(void *param, void *buf, size_t count) |
66 | static ssize_t read_stdin(void *param, void *buf, size_t count) |
67 | { |
67 | { |
68 | ipcarg_t r0,r1; |
68 | ipcarg_t r0,r1; |
69 | size_t i = 0; |
69 | size_t i = 0; |
70 | 70 | ||
71 | while (i < count) { |
71 | while (i < count) { |
72 | if (async_req_2(streams[0].phone, CONSOLE_GETCHAR, 0, 0, &r0, &r1) < 0) { |
72 | if (async_req_2(streams[0].phone, CONSOLE_GETCHAR, 0, 0, &r0, &r1) < 0) { |
73 | return -1; |
73 | return -1; |
74 | } |
74 | } |
75 | ((char *) buf)[i++] = r0; |
75 | ((char *) buf)[i++] = r0; |
76 | } |
76 | } |
77 | return i; |
77 | return i; |
78 | } |
78 | } |
79 | 79 | ||
80 | static ssize_t write_stdout(void *param, const void *buf, size_t count) |
80 | static ssize_t write_stdout(void *param, const void *buf, size_t count) |
81 | { |
81 | { |
82 | int i; |
82 | int i; |
83 | 83 | ||
84 | for (i = 0; i < count; i++) |
84 | for (i = 0; i < count; i++) |
85 | async_msg(streams[1].phone, CONSOLE_PUTCHAR, ((const char *) buf)[i]); |
85 | async_msg(streams[1].phone, CONSOLE_PUTCHAR, ((const char *) buf)[i]); |
86 | 86 | ||
87 | return count; |
87 | return count; |
88 | } |
88 | } |
89 | 89 | ||
90 | static stream_t open_stdin(void) |
90 | static stream_t open_stdin(void) |
91 | { |
91 | { |
92 | stream_t stream; |
92 | stream_t stream; |
93 | 93 | ||
94 | if (console_phone < 0) { |
94 | if (console_phone < 0) { |
95 | while ((console_phone = ipc_connect_me_to(PHONE_NS, SERVICE_CONSOLE, 0)) < 0) { |
95 | while ((console_phone = ipc_connect_me_to(PHONE_NS, SERVICE_CONSOLE, 0)) < 0) { |
96 | usleep(10000); |
96 | usleep(10000); |
97 | } |
97 | } |
98 | } |
98 | } |
99 | 99 | ||
100 | stream.r = read_stdin; |
100 | stream.r = read_stdin; |
101 | stream.w = NULL; |
101 | stream.w = NULL; |
102 | stream.param = 0; |
102 | stream.param = 0; |
103 | stream.phone = console_phone; |
103 | stream.phone = console_phone; |
104 | 104 | ||
105 | return stream; |
105 | return stream; |
106 | } |
106 | } |
107 | 107 | ||
108 | static stream_t open_stdout(void) |
108 | static stream_t open_stdout(void) |
109 | { |
109 | { |
110 | stream_t stream; |
110 | stream_t stream; |
111 | 111 | ||
112 | if (console_phone < 0) { |
112 | if (console_phone < 0) { |
113 | while ((console_phone = ipc_connect_me_to(PHONE_NS, SERVICE_CONSOLE, 0)) < 0) { |
113 | while ((console_phone = ipc_connect_me_to(PHONE_NS, SERVICE_CONSOLE, 0)) < 0) { |
114 | usleep(10000); |
114 | usleep(10000); |
115 | } |
115 | } |
116 | } |
116 | } |
117 | 117 | ||
118 | stream.r = NULL; |
118 | stream.r = NULL; |
119 | stream.w = write_stdout; |
119 | stream.w = write_stdout; |
120 | stream.phone = console_phone; |
120 | stream.phone = console_phone; |
121 | stream.param = 0; |
121 | stream.param = 0; |
122 | 122 | ||
123 | return stream; |
123 | return stream; |
124 | } |
124 | } |
125 | 125 | ||
126 | static ssize_t write_null(void *param, const void *buf, size_t count) |
126 | static ssize_t write_null(void *param, const void *buf, size_t count) |
127 | { |
127 | { |
128 | return count; |
128 | return count; |
129 | } |
129 | } |
130 | 130 | ||
131 | fd_t open(const char *fname, int flags) |
131 | fd_t open(const char *fname, int flags) |
132 | { |
132 | { |
133 | int c = 0; |
133 | int c = 0; |
134 | 134 | ||
135 | while (((streams[c].w) || (streams[c].r)) && (c < FDS)) |
135 | while (((streams[c].w) || (streams[c].r)) && (c < FDS)) |
136 | c++; |
136 | c++; |
137 | 137 | ||
138 | if (c == FDS) |
138 | if (c == FDS) |
139 | return EMFILE; |
139 | return EMFILE; |
140 | 140 | ||
141 | if (!strcmp(fname, "stdin")) { |
141 | if (!strcmp(fname, "stdin")) { |
142 | streams[c] = open_stdin(); |
142 | streams[c] = open_stdin(); |
143 | return c; |
143 | return c; |
144 | } |
144 | } |
145 | 145 | ||
146 | if (!strcmp(fname, "stdout")) { |
146 | if (!strcmp(fname, "stdout")) { |
147 | streams[c] = open_stdout(); |
147 | streams[c] = open_stdout(); |
148 | return c; |
148 | return c; |
149 | } |
149 | } |
150 | 150 | ||
151 | if (!strcmp(fname, "stderr")) { |
151 | if (!strcmp(fname, "stderr")) { |
152 | streams[c].w = write_stderr; |
152 | streams[c].w = write_stderr; |
153 | return c; |
153 | return c; |
154 | } |
154 | } |
155 | 155 | ||
156 | if (!strcmp(fname, "null")) { |
156 | if (!strcmp(fname, "null")) { |
157 | streams[c].w = write_null; |
157 | streams[c].w = write_null; |
158 | return c; |
158 | return c; |
159 | } |
159 | } |
160 | 160 | ||
161 | return -1; |
161 | return -1; |
162 | } |
162 | } |
163 | 163 | ||
164 | 164 | ||
165 | ssize_t write(int fd, const void *buf, size_t count) |
165 | ssize_t write(int fd, const void *buf, size_t count) |
166 | { |
166 | { |
167 | if (fd < FDS && streams[fd].w) |
167 | if (fd < FDS && streams[fd].w) |
168 | return streams[fd].w(streams[fd].param, buf, count); |
168 | return streams[fd].w(streams[fd].param, buf, count); |
169 | 169 | ||
170 | return 0; |
170 | return 0; |
171 | } |
171 | } |
172 | 172 | ||
173 | ssize_t read(int fd, void *buf, size_t count) |
173 | ssize_t read(int fd, void *buf, size_t count) |
174 | { |
174 | { |
175 | if (fd < FDS && streams[fd].r) |
175 | if (fd < FDS && streams[fd].r) |
176 | return streams[fd].r(streams[fd].param, buf, count); |
176 | return streams[fd].r(streams[fd].param, buf, count); |
177 | 177 | ||
178 | return 0; |
178 | return 0; |
179 | } |
179 | } |
180 | 180 | ||
181 | int get_fd_phone(int fd) |
181 | int get_fd_phone(int fd) |
182 | { |
182 | { |
183 | if (fd >= FDS || fd < 0) |
183 | if (fd >= FDS || fd < 0) |
184 | return -1; |
184 | return -1; |
185 | return streams[fd].phone; |
185 | return streams[fd].phone; |
186 | } |
186 | } |
187 | 187 | ||
188 | /** @} |
188 | /** @} |
189 | */ |
189 | */ |
190 | 190 |