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d9fcf2fb | 1 | /* UI_FILE - a generic STDIO like output stream. |
7b6bb8da | 2 | Copyright (C) 1999, 2000, 2001, 2007, 2008, 2009, 2010, 2011 |
0fb0cc75 | 3 | Free Software Foundation, Inc. |
da59e081 JM |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
da59e081 JM |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
da59e081 JM |
19 | |
20 | #include "defs.h" | |
d9fcf2fb | 21 | #include "ui-file.h" |
da59e081 | 22 | #include "tui/tui-file.h" |
d7b2e967 | 23 | #include "tui/tui-io.h" |
da59e081 | 24 | |
fbc75a32 | 25 | #include "tui.h" |
fbc75a32 | 26 | |
d02c80cd | 27 | #include "gdb_string.h" |
da59e081 | 28 | |
d9fcf2fb | 29 | /* A ``struct ui_file'' that is compatible with all the legacy |
1cc6d956 | 30 | code. */ |
da59e081 JM |
31 | |
32 | /* new */ | |
33 | enum streamtype | |
34 | { | |
35 | afile, | |
36 | astring | |
37 | }; | |
38 | ||
39 | /* new */ | |
40 | struct tui_stream | |
41 | { | |
42 | int *ts_magic; | |
43 | enum streamtype ts_streamtype; | |
44 | FILE *ts_filestream; | |
45 | char *ts_strbuf; | |
46 | int ts_buflen; | |
47 | }; | |
48 | ||
d9fcf2fb JM |
49 | static ui_file_flush_ftype tui_file_flush; |
50 | extern ui_file_fputs_ftype tui_file_fputs; | |
51 | static ui_file_isatty_ftype tui_file_isatty; | |
52 | static ui_file_rewind_ftype tui_file_rewind; | |
53 | static ui_file_put_ftype tui_file_put; | |
54 | static ui_file_delete_ftype tui_file_delete; | |
a14ed312 | 55 | static struct ui_file *tui_file_new (void); |
da59e081 JM |
56 | static int tui_file_magic; |
57 | ||
d9fcf2fb | 58 | static struct ui_file * |
fba45db2 | 59 | tui_file_new (void) |
da59e081 | 60 | { |
c0645fb5 | 61 | struct tui_stream *tui = XMALLOC (struct tui_stream); |
d9fcf2fb | 62 | struct ui_file *file = ui_file_new (); |
1c5313c5 | 63 | |
d9fcf2fb JM |
64 | set_ui_file_data (file, tui, tui_file_delete); |
65 | set_ui_file_flush (file, tui_file_flush); | |
66 | set_ui_file_fputs (file, tui_file_fputs); | |
67 | set_ui_file_isatty (file, tui_file_isatty); | |
68 | set_ui_file_rewind (file, tui_file_rewind); | |
69 | set_ui_file_put (file, tui_file_put); | |
da59e081 JM |
70 | tui->ts_magic = &tui_file_magic; |
71 | return file; | |
72 | } | |
73 | ||
74 | static void | |
fba45db2 | 75 | tui_file_delete (struct ui_file *file) |
da59e081 | 76 | { |
d9fcf2fb | 77 | struct tui_stream *tmpstream = ui_file_data (file); |
1c5313c5 | 78 | |
da59e081 | 79 | if (tmpstream->ts_magic != &tui_file_magic) |
8e65ff28 | 80 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 81 | _("tui_file_delete: bad magic number")); |
e5908723 MS |
82 | if ((tmpstream->ts_streamtype == astring) |
83 | && (tmpstream->ts_strbuf != NULL)) | |
da59e081 | 84 | { |
b8c9b27d | 85 | xfree (tmpstream->ts_strbuf); |
da59e081 | 86 | } |
b8c9b27d | 87 | xfree (tmpstream); |
da59e081 JM |
88 | } |
89 | ||
d9fcf2fb | 90 | struct ui_file * |
fba45db2 | 91 | tui_fileopen (FILE *stream) |
da59e081 | 92 | { |
d9fcf2fb JM |
93 | struct ui_file *file = tui_file_new (); |
94 | struct tui_stream *tmpstream = ui_file_data (file); | |
1c5313c5 | 95 | |
da59e081 JM |
96 | tmpstream->ts_streamtype = afile; |
97 | tmpstream->ts_filestream = stream; | |
98 | tmpstream->ts_strbuf = NULL; | |
99 | tmpstream->ts_buflen = 0; | |
100 | return file; | |
101 | } | |
102 | ||
d9fcf2fb | 103 | struct ui_file * |
fba45db2 | 104 | tui_sfileopen (int n) |
da59e081 | 105 | { |
d9fcf2fb JM |
106 | struct ui_file *file = tui_file_new (); |
107 | struct tui_stream *tmpstream = ui_file_data (file); | |
1c5313c5 | 108 | |
da59e081 JM |
109 | tmpstream->ts_streamtype = astring; |
110 | tmpstream->ts_filestream = NULL; | |
111 | if (n > 0) | |
112 | { | |
113 | tmpstream->ts_strbuf = xmalloc ((n + 1) * sizeof (char)); | |
114 | tmpstream->ts_strbuf[0] = '\0'; | |
115 | } | |
116 | else | |
1cc6d956 MS |
117 | /* Do not allocate the buffer now. The first time something is |
118 | printed one will be allocated by tui_file_adjust_strbuf(). */ | |
da59e081 JM |
119 | tmpstream->ts_strbuf = NULL; |
120 | tmpstream->ts_buflen = n; | |
121 | return file; | |
122 | } | |
123 | ||
124 | static int | |
fba45db2 | 125 | tui_file_isatty (struct ui_file *file) |
da59e081 | 126 | { |
d9fcf2fb | 127 | struct tui_stream *stream = ui_file_data (file); |
1c5313c5 | 128 | |
da59e081 | 129 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 130 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 131 | _("tui_file_isatty: bad magic number")); |
da59e081 JM |
132 | if (stream->ts_streamtype == afile) |
133 | return (isatty (fileno (stream->ts_filestream))); | |
134 | else | |
135 | return 0; | |
136 | } | |
137 | ||
138 | static void | |
fba45db2 | 139 | tui_file_rewind (struct ui_file *file) |
da59e081 | 140 | { |
d9fcf2fb | 141 | struct tui_stream *stream = ui_file_data (file); |
1c5313c5 | 142 | |
da59e081 | 143 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 144 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 145 | _("tui_file_rewind: bad magic number")); |
da59e081 JM |
146 | stream->ts_strbuf[0] = '\0'; |
147 | } | |
148 | ||
149 | static void | |
d9fcf2fb JM |
150 | tui_file_put (struct ui_file *file, |
151 | ui_file_put_method_ftype *write, | |
da59e081 JM |
152 | void *dest) |
153 | { | |
d9fcf2fb | 154 | struct tui_stream *stream = ui_file_data (file); |
1c5313c5 | 155 | |
da59e081 | 156 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 157 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 158 | _("tui_file_put: bad magic number")); |
da59e081 JM |
159 | if (stream->ts_streamtype == astring) |
160 | write (dest, stream->ts_strbuf, strlen (stream->ts_strbuf)); | |
161 | } | |
162 | ||
163 | /* All TUI I/O sent to the *_filtered and *_unfiltered functions | |
164 | eventually ends up here. The fputs_unfiltered_hook is primarily | |
165 | used by GUIs to collect all output and send it to the GUI, instead | |
166 | of the controlling terminal. Only output to gdb_stdout and | |
167 | gdb_stderr are sent to the hook. Everything else is sent on to | |
168 | fputs to allow file I/O to be handled appropriately. */ | |
169 | ||
1cc6d956 | 170 | /* FIXME: Should be broken up and moved to a TUI specific file. */ |
da59e081 JM |
171 | |
172 | void | |
fba45db2 | 173 | tui_file_fputs (const char *linebuffer, struct ui_file *file) |
da59e081 | 174 | { |
d9fcf2fb | 175 | struct tui_stream *stream = ui_file_data (file); |
e42acc6b SC |
176 | |
177 | if (stream->ts_streamtype == astring) | |
178 | { | |
179 | tui_file_adjust_strbuf (strlen (linebuffer), file); | |
180 | strcat (stream->ts_strbuf, linebuffer); | |
181 | } | |
da59e081 JM |
182 | else |
183 | { | |
174a4a09 | 184 | tui_puts (linebuffer); |
da59e081 JM |
185 | } |
186 | } | |
187 | ||
188 | char * | |
d9fcf2fb | 189 | tui_file_get_strbuf (struct ui_file *file) |
da59e081 | 190 | { |
d9fcf2fb | 191 | struct tui_stream *stream = ui_file_data (file); |
1c5313c5 | 192 | |
da59e081 | 193 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 194 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 195 | _("tui_file_get_strbuf: bad magic number")); |
da59e081 JM |
196 | return (stream->ts_strbuf); |
197 | } | |
198 | ||
1cc6d956 MS |
199 | /* Adjust the length of the buffer by the amount necessary to |
200 | accomodate appending a string of length N to the buffer | |
201 | contents. */ | |
da59e081 | 202 | void |
d9fcf2fb | 203 | tui_file_adjust_strbuf (int n, struct ui_file *file) |
da59e081 | 204 | { |
d9fcf2fb | 205 | struct tui_stream *stream = ui_file_data (file); |
da59e081 | 206 | int non_null_chars; |
1c5313c5 | 207 | |
da59e081 | 208 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 209 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 210 | _("tui_file_adjust_strbuf: bad magic number")); |
da59e081 JM |
211 | |
212 | if (stream->ts_streamtype != astring) | |
213 | return; | |
214 | ||
215 | if (stream->ts_strbuf) | |
216 | { | |
1cc6d956 | 217 | /* There is already a buffer allocated. */ |
da59e081 JM |
218 | non_null_chars = strlen (stream->ts_strbuf); |
219 | ||
220 | if (n > (stream->ts_buflen - non_null_chars - 1)) | |
221 | { | |
222 | stream->ts_buflen = n + non_null_chars + 1; | |
223 | stream->ts_strbuf = xrealloc (stream->ts_strbuf, stream->ts_buflen); | |
224 | } | |
225 | } | |
226 | else | |
1cc6d956 | 227 | /* No buffer yet, so allocate one of the desired size. */ |
da59e081 JM |
228 | stream->ts_strbuf = xmalloc ((n + 1) * sizeof (char)); |
229 | } | |
230 | ||
231 | static void | |
fba45db2 | 232 | tui_file_flush (struct ui_file *file) |
da59e081 | 233 | { |
d9fcf2fb | 234 | struct tui_stream *stream = ui_file_data (file); |
1c5313c5 | 235 | |
da59e081 | 236 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 237 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 238 | _("tui_file_flush: bad magic number")); |
da59e081 | 239 | |
da59e081 JM |
240 | switch (stream->ts_streamtype) |
241 | { | |
242 | case astring: | |
243 | break; | |
244 | case afile: | |
245 | fflush (stream->ts_filestream); | |
246 | break; | |
247 | } | |
248 | } |