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/*
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* Copyright (c) 2020 Red Hat, Inc.
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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
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will 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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* $Id: //eng/vdo-releases/aluminum/src/c++/vdo/base/vdoDebug.h#1 $
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*/
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#ifndef VDO_DEBUG_H
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#define VDO_DEBUG_H
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#include "completion.h"
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#include "vdo.h"
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/**
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* A completion used to pass information to a potentially asynchronous
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* (because it must run in a different zone) extended command.
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*
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* These commands are dispatched according to argv[0], which is of the form
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* "x-some-command-name", and intentionally open ended for debugging.
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*
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* The command "x-log-debug-message" is currently defined to echo the
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* remainder of the arguments into the kernel log via the vdo logger at
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* info level.
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**/
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typedef struct vdoCommandCompletion {
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VDOCompletion completion;
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VDOCompletion subCompletion;
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VDO *vdo;
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int argc;
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char **argv;
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} VDOCommandCompletion;
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/**
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* Initialize a VDO command completion.
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*
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* @param command The command completion to initialize.
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* @param vdo The VDO.
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* @param argc An argument count.
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* @param argv An argument vector of length argc.
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*
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* @return VDO_SUCCESS or an error code
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**/
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int initializeVDOCommandCompletion(VDOCommandCompletion *command,
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VDO *vdo,
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int argc,
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char **argv);
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/**
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* Destroy a VDO command completion.
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*
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* @param command The command completion.
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*
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* @return the completion result
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**/
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int destroyVDOCommandCompletion(VDOCommandCompletion *command);
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/**
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* Perform an asynchronous extended command (usually debugging related).
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*
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* @param completion The completion embedded in VDOCommandCompletion.
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**/
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void executeVDOExtendedCommand(VDOCompletion *completion);
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#endif // VDO_DEBUG_H
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