File: | src/gnu/usr.bin/binutils/gdb/mi/mi-out.c |
Warning: | line 109, column 16 Value stored to 'data' during its initialization is never read |
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1 | /* MI Command Set - output generating routines. |
2 | |
3 | Copyright 2000, 2002, 2003, 2004 Free Software Foundation, Inc. |
4 | |
5 | Contributed by Cygnus Solutions (a Red Hat company). |
6 | |
7 | This file is part of GDB. |
8 | |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by |
11 | the Free Software Foundation; either version 2 of the License, or |
12 | (at your option) any later version. |
13 | |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | GNU General Public License for more details. |
18 | |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software |
21 | Foundation, Inc., 59 Temple Place - Suite 330, |
22 | Boston, MA 02111-1307, USA. */ |
23 | |
24 | #include "defs.h" |
25 | #include "ui-out.h" |
26 | #include "mi-out.h" |
27 | |
28 | struct ui_out_data |
29 | { |
30 | int suppress_field_separator; |
31 | int suppress_output; |
32 | int mi_version; |
33 | struct ui_file *buffer; |
34 | }; |
35 | typedef struct ui_out_data mi_out_data; |
36 | |
37 | /* These are the MI output functions */ |
38 | |
39 | static void mi_table_begin (struct ui_out *uiout, int nbrofcols, |
40 | int nr_rows, const char *tblid); |
41 | static void mi_table_body (struct ui_out *uiout); |
42 | static void mi_table_end (struct ui_out *uiout); |
43 | static void mi_table_header (struct ui_out *uiout, int width, |
44 | enum ui_align alig, const char *col_name, |
45 | const char *colhdr); |
46 | static void mi_begin (struct ui_out *uiout, enum ui_out_type type, |
47 | int level, const char *id); |
48 | static void mi_end (struct ui_out *uiout, enum ui_out_type type, int level); |
49 | static void mi_field_int (struct ui_out *uiout, int fldno, int width, |
50 | enum ui_align alig, const char *fldname, int value); |
51 | static void mi_field_skip (struct ui_out *uiout, int fldno, int width, |
52 | enum ui_align alig, const char *fldname); |
53 | static void mi_field_string (struct ui_out *uiout, int fldno, int width, |
54 | enum ui_align alig, const char *fldname, |
55 | const char *string); |
56 | static void mi_field_fmt (struct ui_out *uiout, int fldno, |
57 | int width, enum ui_align align, |
58 | const char *fldname, const char *format, |
59 | va_list args); |
60 | static void mi_spaces (struct ui_out *uiout, int numspaces); |
61 | static void mi_text (struct ui_out *uiout, const char *string); |
62 | static void mi_message (struct ui_out *uiout, int verbosity, |
63 | const char *format, va_list args); |
64 | static void mi_wrap_hint (struct ui_out *uiout, char *identstring); |
65 | static void mi_flush (struct ui_out *uiout); |
66 | |
67 | /* This is the MI ui-out implementation functions vector */ |
68 | |
69 | /* FIXME: This can be initialized dynamically after default is set to |
70 | handle initial output in main.c */ |
71 | |
72 | struct ui_out_impl mi_ui_out_impl = |
73 | { |
74 | mi_table_begin, |
75 | mi_table_body, |
76 | mi_table_end, |
77 | mi_table_header, |
78 | mi_begin, |
79 | mi_end, |
80 | mi_field_int, |
81 | mi_field_skip, |
82 | mi_field_string, |
83 | mi_field_fmt, |
84 | mi_spaces, |
85 | mi_text, |
86 | mi_message, |
87 | mi_wrap_hint, |
88 | mi_flush, |
89 | NULL((void*)0), |
90 | 1, /* Needs MI hacks. */ |
91 | }; |
92 | |
93 | /* Prototypes for local functions */ |
94 | |
95 | extern void _initialize_mi_out (void); |
96 | static void field_separator (struct ui_out *uiout); |
97 | static void mi_open (struct ui_out *uiout, const char *name, |
98 | enum ui_out_type type); |
99 | static void mi_close (struct ui_out *uiout, enum ui_out_type type); |
100 | |
101 | /* Mark beginning of a table */ |
102 | |
103 | void |
104 | mi_table_begin (struct ui_out *uiout, |
105 | int nr_cols, |
106 | int nr_rows, |
107 | const char *tblid) |
108 | { |
109 | mi_out_data *data = ui_out_data (uiout); |
Value stored to 'data' during its initialization is never read | |
110 | mi_open (uiout, tblid, ui_out_type_tuple); |
111 | mi_field_int (uiout, -1/*fldno*/, -1/*width*/, -1/*alin*/, |
112 | "nr_rows", nr_rows); |
113 | mi_field_int (uiout, -1/*fldno*/, -1/*width*/, -1/*alin*/, |
114 | "nr_cols", nr_cols); |
115 | mi_open (uiout, "hdr", ui_out_type_list); |
116 | } |
117 | |
118 | /* Mark beginning of a table body */ |
119 | |
120 | void |
121 | mi_table_body (struct ui_out *uiout) |
122 | { |
123 | mi_out_data *data = ui_out_data (uiout); |
124 | if (data->suppress_output) |
125 | return; |
126 | /* close the table header line if there were any headers */ |
127 | mi_close (uiout, ui_out_type_list); |
128 | mi_open (uiout, "body", ui_out_type_list); |
129 | } |
130 | |
131 | /* Mark end of a table */ |
132 | |
133 | void |
134 | mi_table_end (struct ui_out *uiout) |
135 | { |
136 | mi_out_data *data = ui_out_data (uiout); |
137 | data->suppress_output = 0; |
138 | mi_close (uiout, ui_out_type_list); /* body */ |
139 | mi_close (uiout, ui_out_type_tuple); |
140 | } |
141 | |
142 | /* Specify table header */ |
143 | |
144 | void |
145 | mi_table_header (struct ui_out *uiout, int width, enum ui_align alignment, |
146 | const char *col_name, |
147 | const char *colhdr) |
148 | { |
149 | mi_out_data *data = ui_out_data (uiout); |
150 | if (data->suppress_output) |
151 | return; |
152 | mi_open (uiout, NULL((void*)0), ui_out_type_tuple); |
153 | mi_field_int (uiout, 0, 0, 0, "width", width); |
154 | mi_field_int (uiout, 0, 0, 0, "alignment", alignment); |
155 | mi_field_string (uiout, 0, 0, 0, "col_name", col_name); |
156 | mi_field_string (uiout, 0, width, alignment, "colhdr", colhdr); |
157 | mi_close (uiout, ui_out_type_tuple); |
158 | } |
159 | |
160 | /* Mark beginning of a list */ |
161 | |
162 | void |
163 | mi_begin (struct ui_out *uiout, |
164 | enum ui_out_type type, |
165 | int level, |
166 | const char *id) |
167 | { |
168 | mi_out_data *data = ui_out_data (uiout); |
169 | if (data->suppress_output) |
170 | return; |
171 | mi_open (uiout, id, type); |
172 | } |
173 | |
174 | /* Mark end of a list */ |
175 | |
176 | void |
177 | mi_end (struct ui_out *uiout, |
178 | enum ui_out_type type, |
179 | int level) |
180 | { |
181 | mi_out_data *data = ui_out_data (uiout); |
182 | if (data->suppress_output) |
183 | return; |
184 | mi_close (uiout, type); |
185 | } |
186 | |
187 | /* output an int field */ |
188 | |
189 | void |
190 | mi_field_int (struct ui_out *uiout, int fldno, int width, |
191 | enum ui_align alignment, const char *fldname, int value) |
192 | { |
193 | char buffer[20]; /* FIXME: how many chars long a %d can become? */ |
194 | mi_out_data *data = ui_out_data (uiout); |
195 | if (data->suppress_output) |
196 | return; |
197 | |
198 | sprintf (buffer, "%d", value); |
199 | mi_field_string (uiout, fldno, width, alignment, fldname, buffer); |
200 | } |
201 | |
202 | /* used to ommit a field */ |
203 | |
204 | void |
205 | mi_field_skip (struct ui_out *uiout, int fldno, int width, |
206 | enum ui_align alignment, const char *fldname) |
207 | { |
208 | mi_out_data *data = ui_out_data (uiout); |
209 | if (data->suppress_output) |
210 | return; |
211 | mi_field_string (uiout, fldno, width, alignment, fldname, ""); |
212 | } |
213 | |
214 | /* other specific mi_field_* end up here so alignment and field |
215 | separators are both handled by mi_field_string */ |
216 | |
217 | void |
218 | mi_field_string (struct ui_out *uiout, |
219 | int fldno, |
220 | int width, |
221 | enum ui_align align, |
222 | const char *fldname, |
223 | const char *string) |
224 | { |
225 | mi_out_data *data = ui_out_data (uiout); |
226 | if (data->suppress_output) |
227 | return; |
228 | field_separator (uiout); |
229 | if (fldname) |
230 | fprintf_unfiltered (data->buffer, "%s=", fldname); |
231 | fprintf_unfiltered (data->buffer, "\""); |
232 | if (string) |
233 | fputstr_unfiltered (string, '"', data->buffer); |
234 | fprintf_unfiltered (data->buffer, "\""); |
235 | } |
236 | |
237 | /* This is the only field function that does not align */ |
238 | |
239 | void |
240 | mi_field_fmt (struct ui_out *uiout, int fldno, |
241 | int width, enum ui_align align, |
242 | const char *fldname, |
243 | const char *format, |
244 | va_list args) |
245 | { |
246 | mi_out_data *data = ui_out_data (uiout); |
247 | if (data->suppress_output) |
248 | return; |
249 | field_separator (uiout); |
250 | if (fldname) |
251 | fprintf_unfiltered (data->buffer, "%s=\"", fldname); |
252 | else |
253 | fputs_unfiltered ("\"", data->buffer); |
254 | vfprintf_unfiltered (data->buffer, format, args); |
255 | fputs_unfiltered ("\"", data->buffer); |
256 | } |
257 | |
258 | void |
259 | mi_spaces (struct ui_out *uiout, int numspaces) |
260 | { |
261 | } |
262 | |
263 | void |
264 | mi_text (struct ui_out *uiout, const char *string) |
265 | { |
266 | } |
267 | |
268 | void |
269 | mi_message (struct ui_out *uiout, int verbosity, |
270 | const char *format, |
271 | va_list args) |
272 | { |
273 | } |
274 | |
275 | void |
276 | mi_wrap_hint (struct ui_out *uiout, char *identstring) |
277 | { |
278 | wrap_here (identstring); |
279 | } |
280 | |
281 | void |
282 | mi_flush (struct ui_out *uiout) |
283 | { |
284 | mi_out_data *data = ui_out_data (uiout); |
285 | gdb_flush (data->buffer); |
286 | } |
287 | |
288 | /* local functions */ |
289 | |
290 | /* access to ui_out format private members */ |
291 | |
292 | static void |
293 | field_separator (struct ui_out *uiout) |
294 | { |
295 | mi_out_data *data = ui_out_data (uiout); |
296 | if (data->suppress_field_separator) |
297 | data->suppress_field_separator = 0; |
298 | else |
299 | fputc_unfiltered (',', data->buffer); |
300 | } |
301 | |
302 | static void |
303 | mi_open (struct ui_out *uiout, |
304 | const char *name, |
305 | enum ui_out_type type) |
306 | { |
307 | mi_out_data *data = ui_out_data (uiout); |
308 | field_separator (uiout); |
309 | data->suppress_field_separator = 1; |
310 | if (name) |
311 | fprintf_unfiltered (data->buffer, "%s=", name); |
312 | switch (type) |
313 | { |
314 | case ui_out_type_tuple: |
315 | fputc_unfiltered ('{', data->buffer); |
316 | break; |
317 | case ui_out_type_list: |
318 | fputc_unfiltered ('[', data->buffer); |
319 | break; |
320 | default: |
321 | internal_error (__FILE__"/usr/src/gnu/usr.bin/binutils/gdb/mi/mi-out.c", __LINE__321, "bad switch"); |
322 | } |
323 | } |
324 | |
325 | static void |
326 | mi_close (struct ui_out *uiout, |
327 | enum ui_out_type type) |
328 | { |
329 | mi_out_data *data = ui_out_data (uiout); |
330 | switch (type) |
331 | { |
332 | case ui_out_type_tuple: |
333 | fputc_unfiltered ('}', data->buffer); |
334 | break; |
335 | case ui_out_type_list: |
336 | fputc_unfiltered (']', data->buffer); |
337 | break; |
338 | default: |
339 | internal_error (__FILE__"/usr/src/gnu/usr.bin/binutils/gdb/mi/mi-out.c", __LINE__339, "bad switch"); |
340 | } |
341 | data->suppress_field_separator = 0; |
342 | } |
343 | |
344 | /* add a string to the buffer */ |
345 | |
346 | void |
347 | mi_out_buffered (struct ui_out *uiout, char *string) |
348 | { |
349 | mi_out_data *data = ui_out_data (uiout); |
350 | fprintf_unfiltered (data->buffer, "%s", string); |
351 | } |
352 | |
353 | /* clear the buffer */ |
354 | |
355 | void |
356 | mi_out_rewind (struct ui_out *uiout) |
357 | { |
358 | mi_out_data *data = ui_out_data (uiout); |
359 | ui_file_rewind (data->buffer); |
360 | } |
361 | |
362 | /* dump the buffer onto the specified stream */ |
363 | |
364 | static void |
365 | do_write (void *data, const char *buffer, long length_buffer) |
366 | { |
367 | ui_file_write (data, buffer, length_buffer); |
368 | } |
369 | |
370 | void |
371 | mi_out_put (struct ui_out *uiout, |
372 | struct ui_file *stream) |
373 | { |
374 | mi_out_data *data = ui_out_data (uiout); |
375 | ui_file_put (data->buffer, do_write, stream); |
376 | ui_file_rewind (data->buffer); |
377 | } |
378 | |
379 | /* Current MI version. */ |
380 | |
381 | int |
382 | mi_version (struct ui_out *uiout) |
383 | { |
384 | mi_out_data *data = ui_out_data (uiout); |
385 | return data->mi_version; |
386 | } |
387 | |
388 | /* initalize private members at startup */ |
389 | |
390 | struct ui_out * |
391 | mi_out_new (int mi_version) |
392 | { |
393 | int flags = 0; |
394 | mi_out_data *data = XMALLOC (mi_out_data)((mi_out_data*) xmalloc (sizeof (mi_out_data))); |
395 | data->suppress_field_separator = 0; |
396 | data->suppress_output = 0; |
397 | data->mi_version = mi_version; |
398 | /* FIXME: This code should be using a ``string_file'' and not the |
399 | TUI buffer hack. */ |
400 | data->buffer = mem_fileopen (); |
401 | return ui_out_new (&mi_ui_out_impl, data, flags); |
402 | } |
403 | |
404 | /* standard gdb initialization hook */ |
405 | void |
406 | _initialize_mi_out (void) |
407 | { |
408 | /* nothing happens here */ |
409 | } |