qemu-e2k/include/qemu-io.h
Max Reitz b32d7a39af qemu-io: Let command functions return error code
This is basically what everything else in the qemu code base does, so we
can do it here, too.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180509194302.21585-3-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2018-06-11 16:18:45 +02:00

58 lines
1.7 KiB
C

/*
* Copyright (c) 2000-2005 Silicon Graphics, Inc.
* All Rights Reserved.
*
* 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.
*
* This program is distributed in the hope that it would 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 QEMU_IO_H
#define QEMU_IO_H
#include "qemu-common.h"
#define CMD_FLAG_GLOBAL ((int)0x80000000) /* don't iterate "args" */
/* Implement a qemu-io command.
* Operate on @blk using @argc/@argv as the command's arguments, and
* return 0 on success or negative errno on failure.
*/
typedef int (*cfunc_t)(BlockBackend *blk, int argc, char **argv);
typedef void (*helpfunc_t)(void);
typedef struct cmdinfo {
const char* name;
const char* altname;
cfunc_t cfunc;
int argmin;
int argmax;
int canpush;
int flags;
const char *args;
const char *oneline;
helpfunc_t help;
uint64_t perm;
} cmdinfo_t;
extern bool qemuio_misalign;
int qemuio_command(BlockBackend *blk, const char *cmd);
void qemuio_add_command(const cmdinfo_t *ci);
void qemuio_command_usage(const cmdinfo_t *ci);
void qemuio_complete_command(const char *input,
void (*fn)(const char *cmd, void *opaque),
void *opaque);
#endif /* QEMU_IO_H */