Commit | Line | Data |
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d9fcf2fb | 1 | /* UI_FILE - a generic STDIO like output stream. |
0fb0cc75 JB |
2 | Copyright (C) 1999, 2000, 2001, 2007, 2008, 2009 |
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 JM |
62 | struct ui_file *file = ui_file_new (); |
63 | set_ui_file_data (file, tui, tui_file_delete); | |
64 | set_ui_file_flush (file, tui_file_flush); | |
65 | set_ui_file_fputs (file, tui_file_fputs); | |
66 | set_ui_file_isatty (file, tui_file_isatty); | |
67 | set_ui_file_rewind (file, tui_file_rewind); | |
68 | set_ui_file_put (file, tui_file_put); | |
da59e081 JM |
69 | tui->ts_magic = &tui_file_magic; |
70 | return file; | |
71 | } | |
72 | ||
73 | static void | |
fba45db2 | 74 | tui_file_delete (struct ui_file *file) |
da59e081 | 75 | { |
d9fcf2fb | 76 | struct tui_stream *tmpstream = ui_file_data (file); |
da59e081 | 77 | if (tmpstream->ts_magic != &tui_file_magic) |
8e65ff28 | 78 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 79 | _("tui_file_delete: bad magic number")); |
e5908723 MS |
80 | if ((tmpstream->ts_streamtype == astring) |
81 | && (tmpstream->ts_strbuf != NULL)) | |
da59e081 | 82 | { |
b8c9b27d | 83 | xfree (tmpstream->ts_strbuf); |
da59e081 | 84 | } |
b8c9b27d | 85 | xfree (tmpstream); |
da59e081 JM |
86 | } |
87 | ||
d9fcf2fb | 88 | struct ui_file * |
fba45db2 | 89 | tui_fileopen (FILE *stream) |
da59e081 | 90 | { |
d9fcf2fb JM |
91 | struct ui_file *file = tui_file_new (); |
92 | struct tui_stream *tmpstream = ui_file_data (file); | |
da59e081 JM |
93 | tmpstream->ts_streamtype = afile; |
94 | tmpstream->ts_filestream = stream; | |
95 | tmpstream->ts_strbuf = NULL; | |
96 | tmpstream->ts_buflen = 0; | |
97 | return file; | |
98 | } | |
99 | ||
d9fcf2fb | 100 | struct ui_file * |
fba45db2 | 101 | tui_sfileopen (int n) |
da59e081 | 102 | { |
d9fcf2fb JM |
103 | struct ui_file *file = tui_file_new (); |
104 | struct tui_stream *tmpstream = ui_file_data (file); | |
da59e081 JM |
105 | tmpstream->ts_streamtype = astring; |
106 | tmpstream->ts_filestream = NULL; | |
107 | if (n > 0) | |
108 | { | |
109 | tmpstream->ts_strbuf = xmalloc ((n + 1) * sizeof (char)); | |
110 | tmpstream->ts_strbuf[0] = '\0'; | |
111 | } | |
112 | else | |
1cc6d956 MS |
113 | /* Do not allocate the buffer now. The first time something is |
114 | printed one will be allocated by tui_file_adjust_strbuf(). */ | |
da59e081 JM |
115 | tmpstream->ts_strbuf = NULL; |
116 | tmpstream->ts_buflen = n; | |
117 | return file; | |
118 | } | |
119 | ||
120 | static int | |
fba45db2 | 121 | tui_file_isatty (struct ui_file *file) |
da59e081 | 122 | { |
d9fcf2fb | 123 | struct tui_stream *stream = ui_file_data (file); |
da59e081 | 124 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 125 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 126 | _("tui_file_isatty: bad magic number")); |
da59e081 JM |
127 | if (stream->ts_streamtype == afile) |
128 | return (isatty (fileno (stream->ts_filestream))); | |
129 | else | |
130 | return 0; | |
131 | } | |
132 | ||
133 | static void | |
fba45db2 | 134 | tui_file_rewind (struct ui_file *file) |
da59e081 | 135 | { |
d9fcf2fb | 136 | struct tui_stream *stream = ui_file_data (file); |
da59e081 | 137 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 138 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 139 | _("tui_file_rewind: bad magic number")); |
da59e081 JM |
140 | stream->ts_strbuf[0] = '\0'; |
141 | } | |
142 | ||
143 | static void | |
d9fcf2fb JM |
144 | tui_file_put (struct ui_file *file, |
145 | ui_file_put_method_ftype *write, | |
da59e081 JM |
146 | void *dest) |
147 | { | |
d9fcf2fb | 148 | struct tui_stream *stream = ui_file_data (file); |
da59e081 | 149 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 150 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 151 | _("tui_file_put: bad magic number")); |
da59e081 JM |
152 | if (stream->ts_streamtype == astring) |
153 | write (dest, stream->ts_strbuf, strlen (stream->ts_strbuf)); | |
154 | } | |
155 | ||
156 | /* All TUI I/O sent to the *_filtered and *_unfiltered functions | |
157 | eventually ends up here. The fputs_unfiltered_hook is primarily | |
158 | used by GUIs to collect all output and send it to the GUI, instead | |
159 | of the controlling terminal. Only output to gdb_stdout and | |
160 | gdb_stderr are sent to the hook. Everything else is sent on to | |
161 | fputs to allow file I/O to be handled appropriately. */ | |
162 | ||
1cc6d956 | 163 | /* FIXME: Should be broken up and moved to a TUI specific file. */ |
da59e081 JM |
164 | |
165 | void | |
fba45db2 | 166 | tui_file_fputs (const char *linebuffer, struct ui_file *file) |
da59e081 | 167 | { |
d9fcf2fb | 168 | struct tui_stream *stream = ui_file_data (file); |
e42acc6b SC |
169 | |
170 | if (stream->ts_streamtype == astring) | |
171 | { | |
172 | tui_file_adjust_strbuf (strlen (linebuffer), file); | |
173 | strcat (stream->ts_strbuf, linebuffer); | |
174 | } | |
da59e081 JM |
175 | else |
176 | { | |
174a4a09 | 177 | tui_puts (linebuffer); |
da59e081 JM |
178 | } |
179 | } | |
180 | ||
181 | char * | |
d9fcf2fb | 182 | tui_file_get_strbuf (struct ui_file *file) |
da59e081 | 183 | { |
d9fcf2fb | 184 | struct tui_stream *stream = ui_file_data (file); |
da59e081 | 185 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 186 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 187 | _("tui_file_get_strbuf: bad magic number")); |
da59e081 JM |
188 | return (stream->ts_strbuf); |
189 | } | |
190 | ||
1cc6d956 MS |
191 | /* Adjust the length of the buffer by the amount necessary to |
192 | accomodate appending a string of length N to the buffer | |
193 | contents. */ | |
da59e081 | 194 | void |
d9fcf2fb | 195 | tui_file_adjust_strbuf (int n, struct ui_file *file) |
da59e081 | 196 | { |
d9fcf2fb | 197 | struct tui_stream *stream = ui_file_data (file); |
da59e081 JM |
198 | int non_null_chars; |
199 | if (stream->ts_magic != &tui_file_magic) | |
8e65ff28 | 200 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 201 | _("tui_file_adjust_strbuf: bad magic number")); |
da59e081 JM |
202 | |
203 | if (stream->ts_streamtype != astring) | |
204 | return; | |
205 | ||
206 | if (stream->ts_strbuf) | |
207 | { | |
1cc6d956 | 208 | /* There is already a buffer allocated. */ |
da59e081 JM |
209 | non_null_chars = strlen (stream->ts_strbuf); |
210 | ||
211 | if (n > (stream->ts_buflen - non_null_chars - 1)) | |
212 | { | |
213 | stream->ts_buflen = n + non_null_chars + 1; | |
214 | stream->ts_strbuf = xrealloc (stream->ts_strbuf, stream->ts_buflen); | |
215 | } | |
216 | } | |
217 | else | |
1cc6d956 | 218 | /* No buffer yet, so allocate one of the desired size. */ |
da59e081 JM |
219 | stream->ts_strbuf = xmalloc ((n + 1) * sizeof (char)); |
220 | } | |
221 | ||
222 | static void | |
fba45db2 | 223 | tui_file_flush (struct ui_file *file) |
da59e081 | 224 | { |
d9fcf2fb | 225 | struct tui_stream *stream = ui_file_data (file); |
da59e081 | 226 | if (stream->ts_magic != &tui_file_magic) |
8e65ff28 | 227 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 228 | _("tui_file_flush: bad magic number")); |
da59e081 | 229 | |
da59e081 JM |
230 | switch (stream->ts_streamtype) |
231 | { | |
232 | case astring: | |
233 | break; | |
234 | case afile: | |
235 | fflush (stream->ts_filestream); | |
236 | break; | |
237 | } | |
238 | } |