xref: /openbmc/qemu/include/qemu-io.h (revision cde3c425)
1 /*
2  * Copyright (c) 2000-2005 Silicon Graphics, Inc.
3  * All Rights Reserved.
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it would be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, see <http://www.gnu.org/licenses/>.
16  */
17 
18 #ifndef QEMU_IO_H
19 #define QEMU_IO_H
20 
21 
22 #define CMD_FLAG_GLOBAL ((int)0x80000000) /* don't iterate "args" */
23 
24 /* Implement a qemu-io command.
25  * Operate on @blk using @argc/@argv as the command's arguments, and
26  * return 0 on success or negative errno on failure.
27  */
28 typedef int (*cfunc_t)(BlockBackend *blk, int argc, char **argv);
29 
30 typedef void (*helpfunc_t)(void);
31 
32 typedef struct cmdinfo {
33     const char* name;
34     const char* altname;
35     cfunc_t     cfunc;
36     int         argmin;
37     int         argmax;
38     int         canpush;
39     int         flags;
40     const char  *args;
41     const char  *oneline;
42     helpfunc_t  help;
43     uint64_t    perm;
44 } cmdinfo_t;
45 
46 extern bool qemuio_misalign;
47 
48 int qemuio_command(BlockBackend *blk, const char *cmd);
49 
50 void qemuio_add_command(const cmdinfo_t *ci);
51 void qemuio_command_usage(const cmdinfo_t *ci);
52 void qemuio_complete_command(const char *input,
53                              void (*fn)(const char *cmd, void *opaque),
54                              void *opaque);
55 
56 #endif /* QEMU_IO_H */
57