gdb/mi/mi-console.c

   1 /* MI Console code.
   2
   3    Copyright (C) 2000-2002, 2007-2012 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 3 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, see <http://www.gnu.org/licenses/>.  */
  21
  22 #include "defs.h"
  23 #include "mi-console.h"
  24 #include "gdb_string.h"
  25
  26 /* MI-console: send output to std-out but correcty encapsulated */
  27
  28 static ui_file_fputs_ftype mi_console_file_fputs;
  29 static ui_file_flush_ftype mi_console_file_flush;
  30 static ui_file_delete_ftype mi_console_file_delete;
  31
  32 struct mi_console_file
  33   {
  34     int *magic;
  35     struct ui_file *raw;
  36     struct ui_file *buffer;
  37     const char *prefix;
  38     char quote;
  39   };
  40
  41 int mi_console_file_magic;
  42
  43 struct ui_file *
  44 mi_console_file_new (struct ui_file *raw,
  45                      const char *prefix, char quote)
  46 {
  47   struct ui_file *ui_file = ui_file_new ();
  48   struct mi_console_file *mi_console = XMALLOC (struct mi_console_file);
  49
  50   mi_console->magic = &mi_console_file_magic;
  51   mi_console->raw = raw;
  52   mi_console->buffer = mem_fileopen ();
  53   mi_console->prefix = prefix;
  54   mi_console->quote = quote;
  55   set_ui_file_fputs (ui_file, mi_console_file_fputs);
  56   set_ui_file_flush (ui_file, mi_console_file_flush);
  57   set_ui_file_data (ui_file, mi_console, mi_console_file_delete);
  58   return ui_file;
  59 }
  60
  61 static void
  62 mi_console_file_delete (struct ui_file *file)
  63 {
  64   struct mi_console_file *mi_console = ui_file_data (file);
  65
  66   if (mi_console->magic != &mi_console_file_magic)
  67     internal_error (__FILE__, __LINE__,
  68                     _("mi_console_file_delete: bad magic number"));
  69   xfree (mi_console);
  70 }
  71
  72 static void
  73 mi_console_file_fputs (const char *buf,
  74                        struct ui_file *file)
  75 {
  76   struct mi_console_file *mi_console = ui_file_data (file);
  77
  78   if (mi_console->magic != &mi_console_file_magic)
  79     internal_error (__FILE__, __LINE__,
  80                     "mi_console_file_fputs: bad magic number");
  81   /* Append the text to our internal buffer */
  82   fputs_unfiltered (buf, mi_console->buffer);
  83   /* Flush when an embedded \n */
  84   if (strchr (buf, '\n') != NULL)
  85     gdb_flush (file);
  86 }
  87
  88 /* Transform a byte sequence into a console output packet. */
  89 static void
  90 mi_console_raw_packet (void *data,
  91                        const char *buf,
  92                        long length_buf)
  93 {
  94   struct mi_console_file *mi_console = data;
  95
  96   if (mi_console->magic != &mi_console_file_magic)
  97     internal_error (__FILE__, __LINE__,
  98                     _("mi_console_file_transform: bad magic number"));
  99
 100   if (length_buf > 0)
 101     {
 102       fputs_unfiltered (mi_console->prefix, mi_console->raw);
 103       if (mi_console->quote)
 104         {
 105           fputs_unfiltered ("\"", mi_console->raw);
 106           fputstrn_unfiltered (buf, length_buf,
 107                                mi_console->quote, mi_console->raw);
 108           fputs_unfiltered ("\"\n", mi_console->raw);
 109         }
 110       else
 111         {
 112           fputstrn_unfiltered (buf, length_buf, 0, mi_console->raw);
 113           fputs_unfiltered ("\n", mi_console->raw);
 114         }
 115       gdb_flush (mi_console->raw);
 116     }
 117 }
 118
 119 static void
 120 mi_console_file_flush (struct ui_file *file)
 121 {
 122   struct mi_console_file *mi_console = ui_file_data (file);
 123
 124   if (mi_console->magic != &mi_console_file_magic)
 125     internal_error (__FILE__, __LINE__,
 126                     _("mi_console_file_flush: bad magic number"));
 127   ui_file_put (mi_console->buffer, mi_console_raw_packet, mi_console);
 128   ui_file_rewind (mi_console->buffer);
 129 }