xref: /dragonfly/contrib/gdb-7/gdb/mi/mi-console.c (revision 38c2ea22)
1 /* MI Console code.
2 
3    Copyright (C) 2000-2002, 2007-2012 Free Software Foundation, Inc.
4 
5    Contributed by Cygnus Solutions (a Red Hat company).
6 
7    This file is part of GDB.
8 
9    This program is free software; you can redistribute it and/or modify
10    it under the terms of the GNU General Public License as published by
11    the Free Software Foundation; either version 3 of the License, or
12    (at your option) any later version.
13 
14    This program is distributed in the hope that it will be useful,
15    but WITHOUT ANY WARRANTY; without even the implied warranty of
16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17    GNU General Public License for more details.
18 
19    You should have received a copy of the GNU General Public License
20    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
21 
22 #include "defs.h"
23 #include "mi-console.h"
24 #include "gdb_string.h"
25 
26 /* MI-console: send output to std-out but correcty encapsulated */
27 
28 static ui_file_fputs_ftype mi_console_file_fputs;
29 static ui_file_flush_ftype mi_console_file_flush;
30 static ui_file_delete_ftype mi_console_file_delete;
31 
32 struct mi_console_file
33   {
34     int *magic;
35     struct ui_file *raw;
36     struct ui_file *buffer;
37     const char *prefix;
38     char quote;
39   };
40 
41 int mi_console_file_magic;
42 
43 struct ui_file *
44 mi_console_file_new (struct ui_file *raw,
45 		     const char *prefix, char quote)
46 {
47   struct ui_file *ui_file = ui_file_new ();
48   struct mi_console_file *mi_console = XMALLOC (struct mi_console_file);
49 
50   mi_console->magic = &mi_console_file_magic;
51   mi_console->raw = raw;
52   mi_console->buffer = mem_fileopen ();
53   mi_console->prefix = prefix;
54   mi_console->quote = quote;
55   set_ui_file_fputs (ui_file, mi_console_file_fputs);
56   set_ui_file_flush (ui_file, mi_console_file_flush);
57   set_ui_file_data (ui_file, mi_console, mi_console_file_delete);
58   return ui_file;
59 }
60 
61 static void
62 mi_console_file_delete (struct ui_file *file)
63 {
64   struct mi_console_file *mi_console = ui_file_data (file);
65 
66   if (mi_console->magic != &mi_console_file_magic)
67     internal_error (__FILE__, __LINE__,
68 		    _("mi_console_file_delete: bad magic number"));
69   xfree (mi_console);
70 }
71 
72 static void
73 mi_console_file_fputs (const char *buf,
74 		       struct ui_file *file)
75 {
76   struct mi_console_file *mi_console = ui_file_data (file);
77 
78   if (mi_console->magic != &mi_console_file_magic)
79     internal_error (__FILE__, __LINE__,
80 		    "mi_console_file_fputs: bad magic number");
81   /* Append the text to our internal buffer */
82   fputs_unfiltered (buf, mi_console->buffer);
83   /* Flush when an embedded \n */
84   if (strchr (buf, '\n') != NULL)
85     gdb_flush (file);
86 }
87 
88 /* Transform a byte sequence into a console output packet. */
89 static void
90 mi_console_raw_packet (void *data,
91 		       const char *buf,
92 		       long length_buf)
93 {
94   struct mi_console_file *mi_console = data;
95 
96   if (mi_console->magic != &mi_console_file_magic)
97     internal_error (__FILE__, __LINE__,
98 		    _("mi_console_file_transform: bad magic number"));
99 
100   if (length_buf > 0)
101     {
102       fputs_unfiltered (mi_console->prefix, mi_console->raw);
103       if (mi_console->quote)
104 	{
105 	  fputs_unfiltered ("\"", mi_console->raw);
106 	  fputstrn_unfiltered (buf, length_buf,
107 			       mi_console->quote, mi_console->raw);
108 	  fputs_unfiltered ("\"\n", mi_console->raw);
109 	}
110       else
111 	{
112 	  fputstrn_unfiltered (buf, length_buf, 0, mi_console->raw);
113 	  fputs_unfiltered ("\n", mi_console->raw);
114 	}
115       gdb_flush (mi_console->raw);
116     }
117 }
118 
119 static void
120 mi_console_file_flush (struct ui_file *file)
121 {
122   struct mi_console_file *mi_console = ui_file_data (file);
123 
124   if (mi_console->magic != &mi_console_file_magic)
125     internal_error (__FILE__, __LINE__,
126 		    _("mi_console_file_flush: bad magic number"));
127   ui_file_put (mi_console->buffer, mi_console_raw_packet, mi_console);
128   ui_file_rewind (mi_console->buffer);
129 }
130