gdb/ui-out.h

   1 /* Output generating routines for GDB.
   2
   3    Copyright (C) 1999, 2000, 2001, 2002, 2003, 2005, 2007, 2008, 2009, 2010,
   4    2011 Free Software Foundation, Inc.
   5
   6    Contributed by Cygnus Solutions.
   7    Written by Fernando Nasser for Cygnus.
   8
   9    This file is part of GDB.
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  23
  24 #ifndef UI_OUT_H
  25 #define UI_OUT_H 1
  26
  27 /* The ui_out structure */
  28
  29 struct ui_out;
  30 struct ui_file;
  31
  32 /* the current ui_out */
  33
  34 /* FIXME: This should not be a global but something passed down from main.c
  35    or top.c.  */
  36 extern struct ui_out *uiout;
  37
  38 /* alignment enum */
  39 enum ui_align
  40   {
  41     ui_left = -1,
  42     ui_center,
  43     ui_right,
  44     ui_noalign
  45   };
  46
  47 /* flags enum */
  48 enum ui_flags
  49   {
  50     ui_from_tty = 1,
  51     ui_source_list = 2
  52   };
  53
  54
  55 /* The ui_out stream structure.  */
  56 /* NOTE: cagney/2000-02-01: The ui_stream object can be subsumed by
  57    the more generic ui_file object.  */
  58
  59 struct ui_stream
  60   {
  61     struct ui_out *uiout;
  62     struct ui_file *stream;
  63   };
  64
  65
  66 /* Prototypes for ui-out API.  */
  67
  68 /* A result is a recursive data structure consisting of lists and
  69    tuples.  */
  70
  71 enum ui_out_type
  72   {
  73     ui_out_type_tuple,
  74     ui_out_type_list
  75   };
  76
  77 extern void ui_out_begin (struct ui_out *uiout,
  78                           enum ui_out_type level_type,
  79                           const char *id);
  80
  81 extern void ui_out_end (struct ui_out *uiout, enum ui_out_type type);
  82
  83 extern struct cleanup *ui_out_begin_cleanup_end (struct ui_out *uiout,
  84                                                  enum ui_out_type level_type,
  85                                                  const char *id);
  86
  87 /* A table can be considered a special tuple/list combination with the
  88    implied structure: ``table = { hdr = { header, ... } , body = [ {
  89    field, ... }, ... ] }''.  If NR_ROWS is negative then there is at
  90    least one row.  */
  91 extern void ui_out_table_header (struct ui_out *uiout, int width,
  92                                  enum ui_align align, const char *col_name,
  93                                  const char *colhdr);
  94
  95 extern void ui_out_table_body (struct ui_out *uiout);
  96
  97 extern struct cleanup *make_cleanup_ui_out_table_begin_end (struct ui_out *ui_out,
  98                                                             int nr_cols,
  99                                                             int nr_rows,
 100                                                             const char *tblid);
 101 /* Compatibility wrappers.  */
 102
 103 extern struct cleanup *make_cleanup_ui_out_list_begin_end (struct ui_out *uiout,
 104                                                            const char *id);
 105
 106 extern struct cleanup *make_cleanup_ui_out_tuple_begin_end (struct ui_out *uiout,
 107                                                             const char *id);
 108
 109 extern void ui_out_field_int (struct ui_out *uiout, const char *fldname,
 110                               int value);
 111
 112 extern void ui_out_field_fmt_int (struct ui_out *uiout, int width,
 113                                   enum ui_align align, const char *fldname,
 114                                   int value);
 115
 116 /* Output a field containing an addresses.  */
 117
 118 extern void ui_out_field_core_addr (struct ui_out *uiout, const char *fldname,
 119                                     struct gdbarch *gdbarch, CORE_ADDR address);
 120
 121 extern void ui_out_field_string (struct ui_out * uiout, const char *fldname,
 122                                  const char *string);
 123
 124 extern void ui_out_field_stream (struct ui_out *uiout, const char *fldname,
 125                                  struct ui_stream *buf);
 126
 127 extern void ui_out_field_fmt (struct ui_out *uiout, const char *fldname,
 128                               const char *format, ...)
 129      ATTRIBUTE_PRINTF (3, 4);
 130
 131 extern void ui_out_field_skip (struct ui_out *uiout, const char *fldname);
 132
 133 extern void ui_out_spaces (struct ui_out *uiout, int numspaces);
 134
 135 extern void ui_out_text (struct ui_out *uiout, const char *string);
 136
 137 extern void ui_out_message (struct ui_out *uiout, int verbosity,
 138                             const char *format, ...)
 139      ATTRIBUTE_PRINTF (3, 4);
 140
 141 extern struct ui_stream *ui_out_stream_new (struct ui_out *uiout);
 142
 143 extern void ui_out_stream_delete (struct ui_stream *buf);
 144
 145 struct cleanup *make_cleanup_ui_out_stream_delete (struct ui_stream *buf);
 146
 147 extern void ui_out_wrap_hint (struct ui_out *uiout, char *identstring);
 148
 149 extern void ui_out_flush (struct ui_out *uiout);
 150
 151 extern int ui_out_set_flags (struct ui_out *uiout, int mask);
 152
 153 extern int ui_out_clear_flags (struct ui_out *uiout, int mask);
 154
 155 extern int ui_out_get_verblvl (struct ui_out *uiout);
 156
 157 extern int ui_out_test_flags (struct ui_out *uiout, int mask);
 158
 159 extern int ui_out_query_field (struct ui_out *uiout, int colno,
 160                                int *width, int *alignment, char **col_name);
 161
 162 #if 0
 163 extern void ui_out_result_begin (struct ui_out *uiout, char *class);
 164
 165 extern void ui_out_result_end (struct ui_out *uiout);
 166
 167 extern void ui_out_info_begin (struct ui_out *uiout, char *class);
 168
 169 extern void ui_out_info_end (struct ui_out *uiout);
 170
 171 extern void ui_out_notify_begin (struct ui_out *uiout, char *class);
 172
 173 extern void ui_out_notify_end (struct ui_out *uiout);
 174
 175 extern void ui_out_error_begin (struct ui_out *uiout, char *class);
 176
 177 extern void ui_out_error_end (struct ui_out *uiout);
 178 #endif
 179
 180 #if 0
 181 extern void gdb_error (struct ui_out *uiout, int severity, char *format, ...);
 182
 183 extern void gdb_query (struct ui_out *uiout, int qflags, char *qprompt);
 184 #endif
 185
 186 /* HACK: Code in GDB is currently checking to see the type of ui_out
 187    builder when determining which output to produce.  This function is
 188    a hack to encapsulate that test.  Once GDB manages to separate the
 189    CLI/MI from the core of GDB the problem should just go away ....  */
 190
 191 extern int ui_out_is_mi_like_p (struct ui_out *uiout);
 192
 193 /* From here on we have things that are only needed by implementation
 194    routines and main.c.   We should pehaps have a separate file for that,
 195    like a  ui-out-impl.h  file.  */
 196
 197 /* User Interface Output Implementation Function Table */
 198
 199 /* Type definition of all implementation functions.  */
 200
 201 typedef void (table_begin_ftype) (struct ui_out * uiout,
 202                                   int nbrofcols, int nr_rows,
 203                                   const char *tblid);
 204 typedef void (table_body_ftype) (struct ui_out * uiout);
 205 typedef void (table_end_ftype) (struct ui_out * uiout);
 206 typedef void (table_header_ftype) (struct ui_out * uiout, int width,
 207                                    enum ui_align align, const char *col_name,
 208                                    const char *colhdr);
 209 /* Note: level 0 is the top-level so LEVEL is always greater than
 210    zero.  */
 211 typedef void (ui_out_begin_ftype) (struct ui_out *uiout,
 212                                    enum ui_out_type type,
 213                                    int level, const char *id);
 214 typedef void (ui_out_end_ftype) (struct ui_out *uiout,
 215                                  enum ui_out_type type,
 216                                  int level);
 217 typedef void (field_int_ftype) (struct ui_out * uiout, int fldno, int width,
 218                                 enum ui_align align,
 219                                 const char *fldname, int value);
 220 typedef void (field_skip_ftype) (struct ui_out * uiout, int fldno, int width,
 221                                  enum ui_align align,
 222                                  const char *fldname);
 223 typedef void (field_string_ftype) (struct ui_out * uiout, int fldno, int width,
 224                                    enum ui_align align,
 225                                    const char *fldname,
 226                                    const char *string);
 227 typedef void (field_fmt_ftype) (struct ui_out * uiout, int fldno, int width,
 228                                 enum ui_align align,
 229                                 const char *fldname,
 230                                 const char *format,
 231                                 va_list args) ATTRIBUTE_FPTR_PRINTF(6,0);
 232 typedef void (spaces_ftype) (struct ui_out * uiout, int numspaces);
 233 typedef void (text_ftype) (struct ui_out * uiout,
 234                            const char *string);
 235 typedef void (message_ftype) (struct ui_out * uiout, int verbosity,
 236                               const char *format, va_list args)
 237      ATTRIBUTE_FPTR_PRINTF(3,0);
 238 typedef void (wrap_hint_ftype) (struct ui_out * uiout, char *identstring);
 239 typedef void (flush_ftype) (struct ui_out * uiout);
 240 typedef int (redirect_ftype) (struct ui_out * uiout,
 241                               struct ui_file * outstream);
 242
 243 /* ui-out-impl */
 244
 245 /* IMPORTANT: If you change this structure, make sure to change the default
 246    initialization in ui-out.c.  */
 247
 248 struct ui_out_impl
 249   {
 250     table_begin_ftype *table_begin;
 251     table_body_ftype *table_body;
 252     table_end_ftype *table_end;
 253     table_header_ftype *table_header;
 254     ui_out_begin_ftype *begin;
 255     ui_out_end_ftype *end;
 256     field_int_ftype *field_int;
 257     field_skip_ftype *field_skip;
 258     field_string_ftype *field_string;
 259     field_fmt_ftype *field_fmt;
 260     spaces_ftype *spaces;
 261     text_ftype *text;
 262     message_ftype *message;
 263     wrap_hint_ftype *wrap_hint;
 264     flush_ftype *flush;
 265     redirect_ftype *redirect;
 266     int is_mi_like_p;
 267   };
 268
 269 extern void *ui_out_data (struct ui_out *uiout);
 270
 271 extern void uo_field_string (struct ui_out *uiout, int fldno, int width,
 272                              enum ui_align align, const char *fldname,
 273                              const char *string);
 274
 275 /* Create a ui_out object */
 276
 277 extern struct ui_out *ui_out_new (struct ui_out_impl *impl,
 278                                   void *data,
 279                                   int flags);
 280
 281 /* Redirect the ouptut of a ui_out object temporarily.  */
 282
 283 extern int ui_out_redirect (struct ui_out *uiout, struct ui_file *outstream);
 284
 285 #endif /* UI_OUT_H */