Commit | Line | Data |
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d9fcf2fb | 1 | /* UI_FILE - a generic STDIO like output stream. |
9b254dd1 | 2 | Copyright (C) 1999, 2000, 2001, 2007, 2008 Free Software Foundation, Inc. |
da59e081 JM |
3 | |
4 | This file is part of GDB. | |
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 | |
a9762ec7 | 8 | the Free Software Foundation; either version 3 of the License, or |
da59e081 JM |
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 | |
a9762ec7 | 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
da59e081 JM |
18 | |
19 | #include "defs.h" | |
d9fcf2fb | 20 | #include "ui-file.h" |
da59e081 | 21 | #include "tui/tui-file.h" |
d7b2e967 | 22 | #include "tui/tui-io.h" |
da59e081 | 23 | |
fbc75a32 | 24 | #include "tui.h" |
fbc75a32 | 25 | |
d02c80cd | 26 | #include "gdb_string.h" |
da59e081 | 27 | |
d9fcf2fb | 28 | /* A ``struct ui_file'' that is compatible with all the legacy |
1cc6d956 | 29 | code. */ |
da59e081 JM |
30 | |
31 | /* new */ | |
32 | enum streamtype | |
33 | { | |
34 | afile, | |
35 | astring | |
36 | }; | |
37 | ||
38 | /* new */ | |
39 | struct tui_stream | |
40 | { | |
41 | int *ts_magic; | |
42 | enum streamtype ts_streamtype; | |
43 | FILE *ts_filestream; | |
44 | char *ts_strbuf; | |
45 | int ts_buflen; | |
46 | }; | |
47 | ||
d9fcf2fb JM |
48 | static ui_file_flush_ftype tui_file_flush; |
49 | extern ui_file_fputs_ftype tui_file_fputs; | |
50 | static ui_file_isatty_ftype tui_file_isatty; | |
51 | static ui_file_rewind_ftype tui_file_rewind; | |
52 | static ui_file_put_ftype tui_file_put; | |
53 | static ui_file_delete_ftype tui_file_delete; | |
a14ed312 | 54 | static struct ui_file *tui_file_new (void); |
da59e081 JM |
55 | static int tui_file_magic; |
56 | ||
d9fcf2fb | 57 | static struct ui_file * |
fba45db2 | 58 | tui_file_new (void) |
da59e081 | 59 | { |
c0645fb5 | 60 | struct tui_stream *tui = XMALLOC (struct tui_stream); |
d9fcf2fb JM |
61 | struct ui_file *file = ui_file_new (); |
62 | set_ui_file_data (file, tui, tui_file_delete); | |
63 | set_ui_file_flush (file, tui_file_flush); | |
64 | set_ui_file_fputs (file, tui_file_fputs); | |
65 | set_ui_file_isatty (file, tui_file_isatty); | |
66 | set_ui_file_rewind (file, tui_file_rewind); | |
67 | set_ui_file_put (file, tui_file_put); | |
da59e081 JM |
68 | tui->ts_magic = &tui_file_magic; |
69 | return file; | |
70 | } | |
71 | ||
72 | static void | |
fba45db2 | 73 | tui_file_delete (struct ui_file *file) |
da59e081 | 74 | { |
d9fcf2fb | 75 | struct tui_stream *tmpstream = ui_file_data (file); |
da59e081 | 76 | if (tmpstream->ts_magic != &tui_file_magic) |
8e65ff28 | 77 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 78 | _("tui_file_delete: bad magic number")); |
e5908723 MS |
79 | if ((tmpstream->ts_streamtype == astring) |
80 | && (tmpstream->ts_strbuf != NULL)) | |
da59e081 | 81 | { |
b8c9b27d | 82 | xfree (tmpstream->ts_strbuf); |
da59e081 | 83 | } |
b8c9b27d | 84 | xfree (tmpstream); |
da59e081 JM |
85 | } |
86 | ||
d9fcf2fb | 87 | struct ui_file * |
fba45db2 | 88 | tui_fileopen (FILE *stream) |
da59e081 | 89 | { |
d9fcf2fb JM |
90 | struct ui_file *file = tui_file_new (); |
91 | struct tui_stream *tmpstream = ui_file_data (file); | |
da59e081 JM |
92 | tmpstream->ts_streamtype = afile; |
93 | tmpstream->ts_filestream = stream; | |
94 | tmpstream->ts_strbuf = NULL; | |
95 | tmpstream->ts_buflen = 0; | |
96 | return file; | |
97 | } | |
98 | ||
d9fcf2fb | 99 | struct ui_file * |
fba45db2 | 100 | tui_sfileopen (int n) |
da59e081 | 101 | { |
d9fcf2fb JM |
102 | struct ui_file *file = tui_file_new (); |
103 | struct tui_stream *tmpstream = ui_file_data (file); | |
da59e081 JM |
104 | tmpstream->ts_streamtype = astring; |
105 | tmpstream->ts_filestream = NULL; | |
106 | if (n > 0) | |
107 | { | |
108 | tmpstream->ts_strbuf = xmalloc ((n + 1) * sizeof (char)); | |
109 | tmpstream->ts_strbuf[0] = '\0'; | |
110 | } | |
111 | else | |
1cc6d956 MS |
112 | /* Do not allocate the buffer now. The first time something is |
113 | printed one will be allocated by tui_file_adjust_strbuf(). */ | |
da59e081 JM |
114 | tmpstream->ts_strbuf = NULL; |
115 | tmpstream->ts_buflen = n; | |
116 | return file; | |
117 | } | |
118 | ||
119 | static int | |
fba45db2 | 120 | tui_file_isatty (struct ui_file *file) |
da59e081 | 121 | { |
d9fcf2fb | 122 | struct tui_stream *stream = ui_file_data (file); |
da59e081 | 123 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 124 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 125 | _("tui_file_isatty: bad magic number")); |
da59e081 JM |
126 | if (stream->ts_streamtype == afile) |
127 | return (isatty (fileno (stream->ts_filestream))); | |
128 | else | |
129 | return 0; | |
130 | } | |
131 | ||
132 | static void | |
fba45db2 | 133 | tui_file_rewind (struct ui_file *file) |
da59e081 | 134 | { |
d9fcf2fb | 135 | struct tui_stream *stream = ui_file_data (file); |
da59e081 | 136 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 137 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 138 | _("tui_file_rewind: bad magic number")); |
da59e081 JM |
139 | stream->ts_strbuf[0] = '\0'; |
140 | } | |
141 | ||
142 | static void | |
d9fcf2fb JM |
143 | tui_file_put (struct ui_file *file, |
144 | ui_file_put_method_ftype *write, | |
da59e081 JM |
145 | void *dest) |
146 | { | |
d9fcf2fb | 147 | struct tui_stream *stream = ui_file_data (file); |
da59e081 | 148 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 149 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 150 | _("tui_file_put: bad magic number")); |
da59e081 JM |
151 | if (stream->ts_streamtype == astring) |
152 | write (dest, stream->ts_strbuf, strlen (stream->ts_strbuf)); | |
153 | } | |
154 | ||
155 | /* All TUI I/O sent to the *_filtered and *_unfiltered functions | |
156 | eventually ends up here. The fputs_unfiltered_hook is primarily | |
157 | used by GUIs to collect all output and send it to the GUI, instead | |
158 | of the controlling terminal. Only output to gdb_stdout and | |
159 | gdb_stderr are sent to the hook. Everything else is sent on to | |
160 | fputs to allow file I/O to be handled appropriately. */ | |
161 | ||
1cc6d956 | 162 | /* FIXME: Should be broken up and moved to a TUI specific file. */ |
da59e081 JM |
163 | |
164 | void | |
fba45db2 | 165 | tui_file_fputs (const char *linebuffer, struct ui_file *file) |
da59e081 | 166 | { |
d9fcf2fb | 167 | struct tui_stream *stream = ui_file_data (file); |
e42acc6b SC |
168 | |
169 | if (stream->ts_streamtype == astring) | |
170 | { | |
171 | tui_file_adjust_strbuf (strlen (linebuffer), file); | |
172 | strcat (stream->ts_strbuf, linebuffer); | |
173 | } | |
da59e081 JM |
174 | else |
175 | { | |
174a4a09 | 176 | tui_puts (linebuffer); |
da59e081 JM |
177 | } |
178 | } | |
179 | ||
180 | char * | |
d9fcf2fb | 181 | tui_file_get_strbuf (struct ui_file *file) |
da59e081 | 182 | { |
d9fcf2fb | 183 | struct tui_stream *stream = ui_file_data (file); |
da59e081 | 184 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 185 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 186 | _("tui_file_get_strbuf: bad magic number")); |
da59e081 JM |
187 | return (stream->ts_strbuf); |
188 | } | |
189 | ||
1cc6d956 MS |
190 | /* Adjust the length of the buffer by the amount necessary to |
191 | accomodate appending a string of length N to the buffer | |
192 | contents. */ | |
da59e081 | 193 | void |
d9fcf2fb | 194 | tui_file_adjust_strbuf (int n, struct ui_file *file) |
da59e081 | 195 | { |
d9fcf2fb | 196 | struct tui_stream *stream = ui_file_data (file); |
da59e081 JM |
197 | int non_null_chars; |
198 | if (stream->ts_magic != &tui_file_magic) | |
8e65ff28 | 199 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 200 | _("tui_file_adjust_strbuf: bad magic number")); |
da59e081 JM |
201 | |
202 | if (stream->ts_streamtype != astring) | |
203 | return; | |
204 | ||
205 | if (stream->ts_strbuf) | |
206 | { | |
1cc6d956 | 207 | /* There is already a buffer allocated. */ |
da59e081 JM |
208 | non_null_chars = strlen (stream->ts_strbuf); |
209 | ||
210 | if (n > (stream->ts_buflen - non_null_chars - 1)) | |
211 | { | |
212 | stream->ts_buflen = n + non_null_chars + 1; | |
213 | stream->ts_strbuf = xrealloc (stream->ts_strbuf, stream->ts_buflen); | |
214 | } | |
215 | } | |
216 | else | |
1cc6d956 | 217 | /* No buffer yet, so allocate one of the desired size. */ |
da59e081 JM |
218 | stream->ts_strbuf = xmalloc ((n + 1) * sizeof (char)); |
219 | } | |
220 | ||
221 | static void | |
fba45db2 | 222 | tui_file_flush (struct ui_file *file) |
da59e081 | 223 | { |
d9fcf2fb | 224 | struct tui_stream *stream = ui_file_data (file); |
da59e081 | 225 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 226 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 227 | _("tui_file_flush: bad magic number")); |
da59e081 | 228 | |
da59e081 JM |
229 | switch (stream->ts_streamtype) |
230 | { | |
231 | case astring: | |
232 | break; | |
233 | case afile: | |
234 | fflush (stream->ts_filestream); | |
235 | break; | |
236 | } | |
237 | } |