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/* MI Console code.

   Copyright 2000, 2001 Free Software Foundation, Inc.

   Contributed by Cygnus Solutions (a Red Hat company).

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 2 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software

   Foundation, Inc., 59 Temple Place - Suite 330,

   Boston, MA 02111-1307, USA.  */

#include "defs.h"

#include "mi-console.h"

#include "gdb_string.h"

/* Convenience macro for allocting typesafe memory. */

#undef XMALLOC

#define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))

/* MI-console: send output to std-out but correcty encapsulated */

static ui_file_fputs_ftype mi_console_file_fputs;

static ui_file_flush_ftype mi_console_file_flush;

static ui_file_delete_ftype mi_console_file_delete;

struct mi_console_file

  {

    int *magic;

    struct ui_file *raw;

    struct ui_file *buffer;

    const char *prefix;

  };

int mi_console_file_magic;

struct ui_file *

mi_console_file_new (struct ui_file *raw,

                     const char *prefix)

{

  struct ui_file *ui_file = ui_file_new ();

  struct mi_console_file *mi_console = XMALLOC (struct mi_console_file);

  mi_console->magic = &mi_console_file_magic;

  mi_console->raw = raw;

  mi_console->buffer = mem_fileopen ();

  mi_console->prefix = prefix;

  set_ui_file_fputs (ui_file, mi_console_file_fputs);

  set_ui_file_flush (ui_file, mi_console_file_flush);

  set_ui_file_data (ui_file, mi_console, mi_console_file_delete);

  return ui_file;

}

static void

mi_console_file_delete (struct ui_file *file)

{

  struct mi_console_file *mi_console = ui_file_data (file);

  if (mi_console->magic != &mi_console_file_magic)

    internal_error (__FILE__, __LINE__,

                    "mi_console_file_delete: bad magic number");

  xfree (mi_console);

}

static void

mi_console_file_fputs (const char *buf,

                       struct ui_file *file)

{

  struct mi_console_file *mi_console = ui_file_data (file);

  if (mi_console->magic != &mi_console_file_magic)

    internal_error (__FILE__, __LINE__,

                    "mi_console_file_fputs: bad magic number");

  /* Append the text to our internal buffer */

  fputs_unfiltered (buf, mi_console->buffer);

  /* Flush when an embedded \n */

  if (strchr (buf, '\n') != NULL)

    gdb_flush (file);

}

/* Transform a byte sequence into a console output packet. */

static void

mi_console_raw_packet (void *data,

                       const char *buf,

                       long length_buf)

{

  struct mi_console_file *mi_console = data;

  if (mi_console->magic != &mi_console_file_magic)

    internal_error (__FILE__, __LINE__,

                    "mi_console_file_transform: bad magic number");

  if (length_buf > 0)

    {

      fputs_unfiltered (mi_console->prefix, mi_console->raw);

      fputs_unfiltered ("\"", mi_console->raw);

      fputstrn_unfiltered (buf, length_buf, '"', mi_console->raw);

      fputs_unfiltered ("\"\n", mi_console->raw);

      gdb_flush (mi_console->raw);

    }

}

static void

mi_console_file_flush (struct ui_file *file)

{

  struct mi_console_file *mi_console = ui_file_data (file);

  if (mi_console->magic != &mi_console_file_magic)

    internal_error (__FILE__, __LINE__,

                    "mi_console_file_flush: bad magic number");

  ui_file_put (mi_console->buffer, mi_console_raw_packet, mi_console);

  ui_file_rewind (mi_console->buffer);

}