1 /* UI_FILE - a generic STDIO like output stream.
2 Copyright (C) 1999, 2000, 2007, 2008, 2009, 2010
3 Free Software Foundation, Inc.
5 This file is part of GDB.
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 3 of the License, or
10 (at your option) any later version.
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.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
26 /* Create a generic ui_file object with null methods. */
28 extern struct ui_file *ui_file_new (void);
30 /* Override methods used by specific implementations of a UI_FILE
33 typedef void (ui_file_flush_ftype) (struct ui_file * stream);
34 extern void set_ui_file_flush (struct ui_file *stream, ui_file_flush_ftype * flush);
36 /* NOTE: Both fputs and write methods are available. Default
37 implementations that mapping one onto the other are included. */
38 typedef void (ui_file_write_ftype) (struct ui_file * stream, const char *buf, long length_buf);
39 extern void set_ui_file_write (struct ui_file *stream, ui_file_write_ftype *fputs);
41 typedef void (ui_file_fputs_ftype) (const char *, struct ui_file * stream);
42 extern void set_ui_file_fputs (struct ui_file *stream, ui_file_fputs_ftype * fputs);
44 typedef long (ui_file_read_ftype) (struct ui_file * stream, char *buf, long length_buf);
45 extern void set_ui_file_read (struct ui_file *stream, ui_file_read_ftype *fread);
47 typedef int (ui_file_isatty_ftype) (struct ui_file * stream);
48 extern void set_ui_file_isatty (struct ui_file *stream, ui_file_isatty_ftype * isatty);
50 typedef void (ui_file_rewind_ftype) (struct ui_file * stream);
51 extern void set_ui_file_rewind (struct ui_file *stream, ui_file_rewind_ftype * rewind);
53 typedef void (ui_file_put_method_ftype) (void *object, const char *buffer, long length_buffer);
54 typedef void (ui_file_put_ftype) (struct ui_file *stream, ui_file_put_method_ftype * method, void *context);
55 extern void set_ui_file_put (struct ui_file *stream, ui_file_put_ftype * put);
57 typedef void (ui_file_delete_ftype) (struct ui_file * stream);
58 extern void set_ui_file_data (struct ui_file *stream, void *data, ui_file_delete_ftype * delete);
60 extern void *ui_file_data (struct ui_file *file);
63 extern void gdb_flush (struct ui_file *);
65 extern void ui_file_delete (struct ui_file *stream);
67 extern void ui_file_rewind (struct ui_file *stream);
69 extern int ui_file_isatty (struct ui_file *);
71 extern void ui_file_write (struct ui_file *file, const char *buf, long length_buf);
73 /* NOTE: copies left to right */
74 extern void ui_file_put (struct ui_file *src, ui_file_put_method_ftype *write, void *dest);
76 /* Returns a freshly allocated buffer containing the entire contents
77 of FILE (as determined by ui_file_put()) with a NUL character
78 appended. LENGTH, if not NULL, is set to the size of the buffer
79 minus that appended NUL. */
80 extern char *ui_file_xstrdup (struct ui_file *file, long *length);
82 /* Similar to ui_file_xstrdup, but return a new string allocated on
84 extern char *ui_file_obsavestring (struct ui_file *file,
85 struct obstack *obstack, long *length);
87 extern long ui_file_read (struct ui_file *file, char *buf, long length_buf);
89 /* Create/open a memory based file. Can be used as a scratch buffer
90 for collecting output. */
91 extern struct ui_file *mem_fileopen (void);
95 /* Open/create a an STDIO based UI_FILE using the already open FILE. */
96 extern struct ui_file *stdio_fileopen (FILE *file);
98 /* Open NAME returning an STDIO based UI_FILE. */
99 extern struct ui_file *gdb_fopen (char *name, char *mode);
101 /* Create a file which writes to both ONE and TWO. CLOSE_ONE
102 and CLOSE_TWO indicate whether the original files should be
103 closed when the new file is closed. */
104 struct ui_file *tee_file_new (struct ui_file *one,