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/* UI_FILE - a generic STDIO like output stream.
Copyright (C) 1999, 2000, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
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 3 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, see <http://www.gnu.org/licenses/>. */
#ifndef UI_FILE_H
#define UI_FILE_H
struct obstack;
struct ui_file;
/* Create a generic ui_file object with null methods. */
extern struct ui_file *ui_file_new (void);
/* Override methods used by specific implementations of a UI_FILE
object. */
typedef void (ui_file_flush_ftype) (struct ui_file *stream);
extern void set_ui_file_flush (struct ui_file *stream,
ui_file_flush_ftype *flush);
/* NOTE: Both fputs and write methods are available. Default
implementations that mapping one onto the other are included. */
typedef void (ui_file_write_ftype) (struct ui_file *stream,
const char *buf, long length_buf);
extern void set_ui_file_write (struct ui_file *stream,
ui_file_write_ftype *fputs);
typedef void (ui_file_fputs_ftype) (const char *, struct ui_file *stream);
extern void set_ui_file_fputs (struct ui_file *stream,
ui_file_fputs_ftype *fputs);
typedef long (ui_file_read_ftype) (struct ui_file *stream,
char *buf, long length_buf);
extern void set_ui_file_read (struct ui_file *stream,
ui_file_read_ftype *fread);
typedef int (ui_file_isatty_ftype) (struct ui_file *stream);
extern void set_ui_file_isatty (struct ui_file *stream,
ui_file_isatty_ftype *isatty);
typedef void (ui_file_rewind_ftype) (struct ui_file *stream);
extern void set_ui_file_rewind (struct ui_file *stream,
ui_file_rewind_ftype *rewind);
typedef void (ui_file_put_method_ftype) (void *object, const char *buffer,
long length_buffer);
typedef void (ui_file_put_ftype) (struct ui_file *stream,
ui_file_put_method_ftype *method,
void *context);
extern void set_ui_file_put (struct ui_file *stream, ui_file_put_ftype *put);
typedef void (ui_file_delete_ftype) (struct ui_file * stream);
extern void set_ui_file_data (struct ui_file *stream, void *data,
ui_file_delete_ftype *delete);
extern void *ui_file_data (struct ui_file *file);
extern void gdb_flush (struct ui_file *);
extern void ui_file_delete (struct ui_file *stream);
extern void ui_file_rewind (struct ui_file *stream);
extern int ui_file_isatty (struct ui_file *);
extern void ui_file_write (struct ui_file *file, const char *buf,
long length_buf);
/* NOTE: copies left to right. */
extern void ui_file_put (struct ui_file *src,
ui_file_put_method_ftype *write, void *dest);
/* Returns a freshly allocated buffer containing the entire contents
of FILE (as determined by ui_file_put()) with a NUL character
appended. LENGTH, if not NULL, is set to the size of the buffer
minus that appended NUL. */
extern char *ui_file_xstrdup (struct ui_file *file, long *length);
/* Similar to ui_file_xstrdup, but return a new string allocated on
OBSTACK. */
extern char *ui_file_obsavestring (struct ui_file *file,
struct obstack *obstack, long *length);
extern long ui_file_read (struct ui_file *file, char *buf, long length_buf);
/* Create/open a memory based file. Can be used as a scratch buffer
for collecting output. */
extern struct ui_file *mem_fileopen (void);
/* Open/create a STDIO based UI_FILE using the already open FILE. */
extern struct ui_file *stdio_fileopen (FILE *file);
/* Open NAME returning an STDIO based UI_FILE. */
extern struct ui_file *gdb_fopen (char *name, char *mode);
/* Create a file which writes to both ONE and TWO. CLOSE_ONE
and CLOSE_TWO indicate whether the original files should be
closed when the new file is closed. */
struct ui_file *tee_file_new (struct ui_file *one,
int close_one,
struct ui_file *two,
int close_two);
#endif
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