gdb/mi/mi-console.c

   1 /* MI Console code.
   2
   3    Copyright (C) 2000, 2001, 2002, 2007 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., 51 Franklin Street, Fifth Floor,
  22    Boston, MA 02110-1301, USA.  */
  23
  24 #include "defs.h"
  25 #include "mi-console.h"
  26 #include "gdb_string.h"
  27
  28 /* MI-console: send output to std-out but correcty encapsulated */
  29
  30 static ui_file_fputs_ftype mi_console_file_fputs;
  31 static ui_file_flush_ftype mi_console_file_flush;
  32 static ui_file_delete_ftype mi_console_file_delete;
  33
  34 struct mi_console_file
  35   {
  36     int *magic;
  37     struct ui_file *raw;
  38     struct ui_file *buffer;
  39     const char *prefix;
  40     char quote;
  41   };
  42
  43 int mi_console_file_magic;
  44
  45 struct ui_file *
  46 mi_console_file_new (struct ui_file *raw,
  47                      const char *prefix, char quote)
  48 {
  49   struct ui_file *ui_file = ui_file_new ();
  50   struct mi_console_file *mi_console = XMALLOC (struct mi_console_file);
  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   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   if (mi_console->magic != &mi_console_file_magic)
  78     internal_error (__FILE__, __LINE__,
  79                     "mi_console_file_fputs: bad magic number");
  80   /* Append the text to our internal buffer */
  81   fputs_unfiltered (buf, mi_console->buffer);
  82   /* Flush when an embedded \n */
  83   if (strchr (buf, '\n') != NULL)
  84     gdb_flush (file);
  85 }
  86
  87 /* Transform a byte sequence into a console output packet. */
  88 static void
  89 mi_console_raw_packet (void *data,
  90                        const char *buf,
  91                        long length_buf)
  92 {
  93   struct mi_console_file *mi_console = data;
  94   if (mi_console->magic != &mi_console_file_magic)
  95     internal_error (__FILE__, __LINE__,
  96                     _("mi_console_file_transform: bad magic number"));
  97
  98   if (length_buf > 0)
  99     {
 100       fputs_unfiltered (mi_console->prefix, mi_console->raw);
 101       if (mi_console->quote)
 102         {
 103           fputs_unfiltered ("\"", mi_console->raw);
 104           fputstrn_unfiltered (buf, length_buf, mi_console->quote, mi_console->raw);
 105           fputs_unfiltered ("\"\n", mi_console->raw);
 106         }
 107       else
 108         {
 109           fputstrn_unfiltered (buf, length_buf, 0, mi_console->raw);
 110           fputs_unfiltered ("\n", mi_console->raw);
 111         }
 112       gdb_flush (mi_console->raw);
 113     }
 114 }
 115
 116 static void
 117 mi_console_file_flush (struct ui_file *file)
 118 {
 119   struct mi_console_file *mi_console = ui_file_data (file);
 120   if (mi_console->magic != &mi_console_file_magic)
 121     internal_error (__FILE__, __LINE__,
 122                     _("mi_console_file_flush: bad magic number"));
 123   ui_file_put (mi_console->buffer, mi_console_raw_packet, mi_console);
 124   ui_file_rewind (mi_console->buffer);
 125 }