147 lines
5.3 KiB
C
147 lines
5.3 KiB
C
/* UI_FILE - a generic STDIO like output stream.
|
|
Copyright (C) 1999-2014 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);
|
|
|
|
/* This version of "write" is safe for use in signal handlers.
|
|
It's not guaranteed that all existing output will have been
|
|
flushed first.
|
|
Implementations are also free to ignore some or all of the request.
|
|
fputs_async is not provided as the async versions are rarely used,
|
|
no point in having both for a rarely used interface. */
|
|
typedef void (ui_file_write_async_safe_ftype)
|
|
(struct ui_file *stream, const char *buf, long length_buf);
|
|
extern void set_ui_file_write_async_safe
|
|
(struct ui_file *stream, ui_file_write_async_safe_ftype *write_async_safe);
|
|
|
|
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);
|
|
|
|
typedef int (ui_file_fseek_ftype) (struct ui_file *stream, long offset,
|
|
int whence);
|
|
extern void set_ui_file_fseek (struct ui_file *stream,
|
|
ui_file_fseek_ftype *fseek_ptr);
|
|
|
|
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);
|
|
|
|
extern void ui_file_write_async_safe (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);
|
|
|
|
extern int ui_file_fseek (struct ui_file *file, long offset, int whence);
|
|
|
|
/* 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);
|
|
|
|
/* Create a ui_file from stderr. */
|
|
extern struct ui_file *stderr_fileopen (void);
|
|
|
|
|
|
/* Open NAME returning an STDIO based UI_FILE. */
|
|
extern struct ui_file *gdb_fopen (const char *name, const 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. */
|
|
extern struct ui_file *tee_file_new (struct ui_file *one,
|
|
int close_one,
|
|
struct ui_file *two,
|
|
int close_two);
|
|
#endif
|