gdb/mi/mi-console.c

   1 /* MI Console code.
   2
   3    Copyright 2000, 2001, 2002 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 "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   };
  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)
  47 {
  48   struct ui_file *ui_file = ui_file_new ();
  49   struct mi_console_file *mi_console = XMALLOC (struct mi_console_file);
  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   set_ui_file_fputs (ui_file, mi_console_file_fputs);
  55   set_ui_file_flush (ui_file, mi_console_file_flush);
  56   set_ui_file_data (ui_file, mi_console, mi_console_file_delete);
  57   return ui_file;
  58 }
  59
  60 static void
  61 mi_console_file_delete (struct ui_file *file)
  62 {
  63   struct mi_console_file *mi_console = ui_file_data (file);
  64   if (mi_console->magic != &mi_console_file_magic)
  65     internal_error (__FILE__, __LINE__,
  66                     "mi_console_file_delete: bad magic number");
  67   xfree (mi_console);
  68 }
  69
  70 static void
  71 mi_console_file_fputs (const char *buf,
  72                        struct ui_file *file)
  73 {
  74   struct mi_console_file *mi_console = ui_file_data (file);
  75   if (mi_console->magic != &mi_console_file_magic)
  76     internal_error (__FILE__, __LINE__,
  77                     "mi_console_file_fputs: bad magic number");
  78   /* Append the text to our internal buffer */
  79   fputs_unfiltered (buf, mi_console->buffer);
  80   /* Flush when an embedded \n */
  81   if (strchr (buf, '\n') != NULL)
  82     gdb_flush (file);
  83 }
  84
  85 /* Transform a byte sequence into a console output packet. */
  86 static void
  87 mi_console_raw_packet (void *data,
  88                        const char *buf,
  89                        long length_buf)
  90 {
  91   struct mi_console_file *mi_console = data;
  92   if (mi_console->magic != &mi_console_file_magic)
  93     internal_error (__FILE__, __LINE__,
  94                     "mi_console_file_transform: bad magic number");
  95
  96   if (length_buf > 0)
  97     {
  98       fputs_unfiltered (mi_console->prefix, mi_console->raw);
  99       fputs_unfiltered ("\"", mi_console->raw);
 100       fputstrn_unfiltered (buf, length_buf, '"', mi_console->raw);
 101       fputs_unfiltered ("\"\n", mi_console->raw);
 102       gdb_flush (mi_console->raw);
 103     }
 104 }
 105
 106 static void
 107 mi_console_file_flush (struct ui_file *file)
 108 {
 109   struct mi_console_file *mi_console = ui_file_data (file);
 110   if (mi_console->magic != &mi_console_file_magic)
 111     internal_error (__FILE__, __LINE__,
 112                     "mi_console_file_flush: bad magic number");
 113   ui_file_put (mi_console->buffer, mi_console_raw_packet, mi_console);
 114   ui_file_rewind (mi_console->buffer);
 115 }