1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
|
/* UI_FILE - a generic STDIO like output stream.
Copyright (C) 1999-2015 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/>. */
#include "defs.h"
#include "ui-file.h"
#include "tui/tui-file.h"
#include "tui/tui-io.h"
#include "tui/tui-command.h"
#include "tui.h"
/* A ``struct ui_file'' that is compatible with all the legacy
code. */
/* new */
enum streamtype
{
afile,
astring
};
/* new */
struct tui_stream
{
int *ts_magic;
enum streamtype ts_streamtype;
FILE *ts_filestream;
char *ts_strbuf;
int ts_buflen;
};
static ui_file_flush_ftype tui_file_flush;
extern ui_file_fputs_ftype tui_file_fputs;
static ui_file_isatty_ftype tui_file_isatty;
static ui_file_rewind_ftype tui_file_rewind;
static ui_file_put_ftype tui_file_put;
static ui_file_delete_ftype tui_file_delete;
static struct ui_file *tui_file_new (void);
static int tui_file_magic;
static struct ui_file *
tui_file_new (void)
{
struct tui_stream *tui = XNEW (struct tui_stream);
struct ui_file *file = ui_file_new ();
set_ui_file_data (file, tui, tui_file_delete);
set_ui_file_flush (file, tui_file_flush);
set_ui_file_fputs (file, tui_file_fputs);
set_ui_file_isatty (file, tui_file_isatty);
set_ui_file_rewind (file, tui_file_rewind);
set_ui_file_put (file, tui_file_put);
tui->ts_magic = &tui_file_magic;
return file;
}
static void
tui_file_delete (struct ui_file *file)
{
struct tui_stream *tmpstream = ui_file_data (file);
if (tmpstream->ts_magic != &tui_file_magic)
internal_error (__FILE__, __LINE__,
_("tui_file_delete: bad magic number"));
if ((tmpstream->ts_streamtype == astring)
&& (tmpstream->ts_strbuf != NULL))
{
xfree (tmpstream->ts_strbuf);
}
xfree (tmpstream);
}
struct ui_file *
tui_fileopen (FILE *stream)
{
struct ui_file *file = tui_file_new ();
struct tui_stream *tmpstream = ui_file_data (file);
tmpstream->ts_streamtype = afile;
tmpstream->ts_filestream = stream;
tmpstream->ts_strbuf = NULL;
tmpstream->ts_buflen = 0;
return file;
}
struct ui_file *
tui_sfileopen (int n)
{
struct ui_file *file = tui_file_new ();
struct tui_stream *tmpstream = ui_file_data (file);
tmpstream->ts_streamtype = astring;
tmpstream->ts_filestream = NULL;
if (n > 0)
{
tmpstream->ts_strbuf = xmalloc ((n + 1) * sizeof (char));
tmpstream->ts_strbuf[0] = '\0';
}
else
/* Do not allocate the buffer now. The first time something is
printed one will be allocated by tui_file_adjust_strbuf(). */
tmpstream->ts_strbuf = NULL;
tmpstream->ts_buflen = n;
return file;
}
static int
tui_file_isatty (struct ui_file *file)
{
struct tui_stream *stream = ui_file_data (file);
if (stream->ts_magic != &tui_file_magic)
internal_error (__FILE__, __LINE__,
_("tui_file_isatty: bad magic number"));
if (stream->ts_streamtype == afile)
return (isatty (fileno (stream->ts_filestream)));
else
return 0;
}
static void
tui_file_rewind (struct ui_file *file)
{
struct tui_stream *stream = ui_file_data (file);
if (stream->ts_magic != &tui_file_magic)
internal_error (__FILE__, __LINE__,
_("tui_file_rewind: bad magic number"));
stream->ts_strbuf[0] = '\0';
}
static void
tui_file_put (struct ui_file *file,
ui_file_put_method_ftype *write,
void *dest)
{
struct tui_stream *stream = ui_file_data (file);
if (stream->ts_magic != &tui_file_magic)
internal_error (__FILE__, __LINE__,
_("tui_file_put: bad magic number"));
if (stream->ts_streamtype == astring)
write (dest, stream->ts_strbuf, strlen (stream->ts_strbuf));
}
/* All TUI I/O sent to the *_filtered and *_unfiltered functions
eventually ends up here. The fputs_unfiltered_hook is primarily
used by GUIs to collect all output and send it to the GUI, instead
of the controlling terminal. Only output to gdb_stdout and
gdb_stderr are sent to the hook. Everything else is sent on to
fputs to allow file I/O to be handled appropriately. */
/* FIXME: Should be broken up and moved to a TUI specific file. */
void
tui_file_fputs (const char *linebuffer, struct ui_file *file)
{
struct tui_stream *stream = ui_file_data (file);
if (stream->ts_streamtype == astring)
{
tui_file_adjust_strbuf (strlen (linebuffer), file);
strcat (stream->ts_strbuf, linebuffer);
}
else
{
tui_puts (linebuffer);
/* gdb_stdout is buffered, and the caller must gdb_flush it at
appropriate times. Other streams are not so buffered. */
if (file != gdb_stdout)
tui_refresh_cmd_win ();
}
}
char *
tui_file_get_strbuf (struct ui_file *file)
{
struct tui_stream *stream = ui_file_data (file);
if (stream->ts_magic != &tui_file_magic)
internal_error (__FILE__, __LINE__,
_("tui_file_get_strbuf: bad magic number"));
return (stream->ts_strbuf);
}
/* Adjust the length of the buffer by the amount necessary to
accomodate appending a string of length N to the buffer
contents. */
void
tui_file_adjust_strbuf (int n, struct ui_file *file)
{
struct tui_stream *stream = ui_file_data (file);
int non_null_chars;
if (stream->ts_magic != &tui_file_magic)
internal_error (__FILE__, __LINE__,
_("tui_file_adjust_strbuf: bad magic number"));
if (stream->ts_streamtype != astring)
return;
if (stream->ts_strbuf)
{
/* There is already a buffer allocated. */
non_null_chars = strlen (stream->ts_strbuf);
if (n > (stream->ts_buflen - non_null_chars - 1))
{
stream->ts_buflen = n + non_null_chars + 1;
stream->ts_strbuf = xrealloc (stream->ts_strbuf, stream->ts_buflen);
}
}
else
/* No buffer yet, so allocate one of the desired size. */
stream->ts_strbuf = xmalloc ((n + 1) * sizeof (char));
}
static void
tui_file_flush (struct ui_file *file)
{
struct tui_stream *stream = ui_file_data (file);
if (stream->ts_magic != &tui_file_magic)
internal_error (__FILE__, __LINE__,
_("tui_file_flush: bad magic number"));
switch (stream->ts_streamtype)
{
case astring:
break;
case afile:
/* gdb_stdout is buffered. Other files are always flushed on
every write. */
if (file == gdb_stdout)
tui_refresh_cmd_win ();
fflush (stream->ts_filestream);
break;
}
}
|
