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/** @file
*
* VBox HDD container test utility - I/O data generator.
*/
/*
* Copyright (C) 2011-2022 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* 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, in version 3 of the
* License.
*
* This program is distributed in the hope that it will 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 <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#ifndef VBOX_INCLUDED_SRC_testcase_VDIoRnd_h
#define VBOX_INCLUDED_SRC_testcase_VDIoRnd_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
/** Pointer to the I/O random number generator. */
typedef struct VDIORND *PVDIORND;
/** Pointer to a I/O random number generator pointer. */
typedef PVDIORND *PPVDIORND;
/**
* Creates a I/O RNG.
*
* @returns VBox status code.
*
* @param ppIoRnd Where to store the handle on success.
* @param cbPattern Size of the test pattern to create.
* @param uSeed Seed for the RNG.
*/
int VDIoRndCreate(PPVDIORND ppIoRnd, size_t cbPattern, uint64_t uSeed);
/**
* Destroys the I/O RNG.
*
* @param pIoRnd I/O RNG handle.
*/
void VDIoRndDestroy(PVDIORND pIoRnd);
/**
* Returns a pointer filled with random data of the given size.
*
* @returns VBox status code.
*
* @param pIoRnd I/O RNG handle.
* @param ppv Where to store the pointer on success.
* @param cb Size of the buffer.
*/
int VDIoRndGetBuffer(PVDIORND pIoRnd, void **ppv, size_t cb);
uint32_t VDIoRndGetU32Ex(PVDIORND pIoRnd, uint32_t uMin, uint32_t uMax);
#endif /* !VBOX_INCLUDED_SRC_testcase_VDIoRnd_h */
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