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b444d0e9d1
For qemu-io, a function returns an integer with two possible values: 0 for "qemu-io may continue execution", or 1 for "qemu-io should exit". However, there is only a single command that returns 1, and that is "quit". So let's turn this case into a global variable instead so we can make better use of the return value in a later patch. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20180509194302.21585-2-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/*
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* Copyright (c) 2000-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef QEMU_IO_H
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#define QEMU_IO_H
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#include "qemu-common.h"
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#define CMD_FLAG_GLOBAL ((int)0x80000000) /* don't iterate "args" */
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typedef void (*cfunc_t)(BlockBackend *blk, int argc, char **argv);
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typedef void (*helpfunc_t)(void);
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typedef struct cmdinfo {
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const char* name;
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const char* altname;
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cfunc_t cfunc;
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int argmin;
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int argmax;
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int canpush;
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int flags;
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const char *args;
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const char *oneline;
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helpfunc_t help;
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uint64_t perm;
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} cmdinfo_t;
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extern bool qemuio_misalign;
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void qemuio_command(BlockBackend *blk, const char *cmd);
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void qemuio_add_command(const cmdinfo_t *ci);
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void qemuio_command_usage(const cmdinfo_t *ci);
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void qemuio_complete_command(const char *input,
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void (*fn)(const char *cmd, void *opaque),
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void *opaque);
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#endif /* QEMU_IO_H */
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