gdb/mi/mi-console.c

   1 /* MI Console code.
   2
   3    Copyright (C) 2000, 2001, 2002, 2007, 2008, 2009, 2010, 2011
   4    Free Software Foundation, Inc.
   5
   6    Contributed by Cygnus Solutions (a Red Hat company).
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  22
  23 #include "defs.h"
  24 #include "mi-console.h"
  25 #include "gdb_string.h"
  26
  27 /* MI-console: send output to std-out but correcty encapsulated */
  28
  29 static ui_file_fputs_ftype mi_console_file_fputs;
  30 static ui_file_flush_ftype mi_console_file_flush;
  31 static ui_file_delete_ftype mi_console_file_delete;
  32
  33 struct mi_console_file
  34   {
  35     int *magic;
  36     struct ui_file *raw;
  37     struct ui_file *buffer;
  38     const char *prefix;
  39     char quote;
  40   };
  41
  42 int mi_console_file_magic;
  43
  44 struct ui_file *
  45 mi_console_file_new (struct ui_file *raw,
  46                      const char *prefix, char quote)
  47 {
  48   struct ui_file *ui_file = ui_file_new ();
  49   struct mi_console_file *mi_console = XMALLOC (struct mi_console_file);
  50
  51   mi_console->magic = &mi_console_file_magic;
  52   mi_console->raw = raw;
  53   mi_console->buffer = mem_fileopen ();
  54   mi_console->prefix = prefix;
  55   mi_console->quote = quote;
  56   set_ui_file_fputs (ui_file, mi_console_file_fputs);
  57   set_ui_file_flush (ui_file, mi_console_file_flush);
  58   set_ui_file_data (ui_file, mi_console, mi_console_file_delete);
  59   return ui_file;
  60 }
  61
  62 static void
  63 mi_console_file_delete (struct ui_file *file)
  64 {
  65   struct mi_console_file *mi_console = ui_file_data (file);
  66
  67   if (mi_console->magic != &mi_console_file_magic)
  68     internal_error (__FILE__, __LINE__,
  69                     _("mi_console_file_delete: bad magic number"));
  70   xfree (mi_console);
  71 }
  72
  73 static void
  74 mi_console_file_fputs (const char *buf,
  75                        struct ui_file *file)
  76 {
  77   struct mi_console_file *mi_console = ui_file_data (file);
  78
  79   if (mi_console->magic != &mi_console_file_magic)
  80     internal_error (__FILE__, __LINE__,
  81                     "mi_console_file_fputs: bad magic number");
  82   /* Append the text to our internal buffer */
  83   fputs_unfiltered (buf, mi_console->buffer);
  84   /* Flush when an embedded \n */
  85   if (strchr (buf, '\n') != NULL)
  86     gdb_flush (file);
  87 }
  88
  89 /* Transform a byte sequence into a console output packet. */
  90 static void
  91 mi_console_raw_packet (void *data,
  92                        const char *buf,
  93                        long length_buf)
  94 {
  95   struct mi_console_file *mi_console = data;
  96
  97   if (mi_console->magic != &mi_console_file_magic)
  98     internal_error (__FILE__, __LINE__,
  99                     _("mi_console_file_transform: bad magic number"));
 100
 101   if (length_buf > 0)
 102     {
 103       fputs_unfiltered (mi_console->prefix, mi_console->raw);
 104       if (mi_console->quote)
 105         {
 106           fputs_unfiltered ("\"", mi_console->raw);
 107           fputstrn_unfiltered (buf, length_buf,
 108                                mi_console->quote, mi_console->raw);
 109           fputs_unfiltered ("\"\n", mi_console->raw);
 110         }
 111       else
 112         {
 113           fputstrn_unfiltered (buf, length_buf, 0, mi_console->raw);
 114           fputs_unfiltered ("\n", mi_console->raw);
 115         }
 116       gdb_flush (mi_console->raw);
 117     }
 118 }
 119
 120 static void
 121 mi_console_file_flush (struct ui_file *file)
 122 {
 123   struct mi_console_file *mi_console = ui_file_data (file);
 124
 125   if (mi_console->magic != &mi_console_file_magic)
 126     internal_error (__FILE__, __LINE__,
 127                     _("mi_console_file_flush: bad magic number"));
 128   ui_file_put (mi_console->buffer, mi_console_raw_packet, mi_console);
 129   ui_file_rewind (mi_console->buffer);
 130 }