gdb/mi/mi-console.c

   1 /* MI Console code.
   2    Copyright 2000, 2001 Free Software Foundation, Inc.
   3    Contributed by Cygnus Solutions (a Red Hat company).
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #include "defs.h"
  23 #include "mi-console.h"
  24 #include "gdb_string.h"
  25
  26 /* Convenience macro for allocting typesafe memory. */
  27
  28 #undef XMALLOC
  29 #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
  30
  31 /* MI-console: send output to std-out but correcty encapsulated */
  32
  33 static ui_file_fputs_ftype mi_console_file_fputs;
  34 static ui_file_flush_ftype mi_console_file_flush;
  35 static ui_file_delete_ftype mi_console_file_delete;
  36
  37 struct mi_console_file
  38   {
  39     int *magic;
  40     struct ui_file *raw;
  41     struct ui_file *buffer;
  42     const char *prefix;
  43   };
  44
  45 int mi_console_file_magic;
  46
  47 struct ui_file *
  48 mi_console_file_new (struct ui_file *raw,
  49                      const char *prefix)
  50 {
  51   struct ui_file *ui_file = ui_file_new ();
  52   struct mi_console_file *mi_console = XMALLOC (struct mi_console_file);
  53   mi_console->magic = &mi_console_file_magic;
  54   mi_console->raw = raw;
  55   mi_console->buffer = mem_fileopen ();
  56   mi_console->prefix = prefix;
  57   set_ui_file_fputs (ui_file, mi_console_file_fputs);
  58   set_ui_file_flush (ui_file, mi_console_file_flush);
  59   set_ui_file_data (ui_file, mi_console, mi_console_file_delete);
  60   return ui_file;
  61 }
  62
  63 static void
  64 mi_console_file_delete (struct ui_file *file)
  65 {
  66   struct mi_console_file *mi_console = ui_file_data (file);
  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   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   if (mi_console->magic != &mi_console_file_magic)
  96     internal_error (__FILE__, __LINE__,
  97                     "mi_console_file_transform: bad magic number");
  98
  99   if (length_buf > 0)
 100     {
 101       fputs_unfiltered (mi_console->prefix, mi_console->raw);
 102       fputs_unfiltered ("\"", mi_console->raw);
 103       fputstrn_unfiltered (buf, length_buf, '"', mi_console->raw);
 104       fputs_unfiltered ("\"\n", mi_console->raw);
 105       gdb_flush (mi_console->raw);
 106     }
 107 }
 108
 109 static void
 110 mi_console_file_flush (struct ui_file *file)
 111 {
 112   struct mi_console_file *mi_console = ui_file_data (file);
 113   if (mi_console->magic != &mi_console_file_magic)
 114     internal_error (__FILE__, __LINE__,
 115                     "mi_console_file_flush: bad magic number");
 116   ui_file_put (mi_console->buffer, mi_console_raw_packet, mi_console);
 117   ui_file_rewind (mi_console->buffer);
 118 }