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#ifndef STOREGPU_H
#define STOREGPU_H
/*==========================================================================
S T O R E G P U
* Copyright (c) 2008, NetSysLab at the University of British Columbia
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the University nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY NetSysLab ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NetSysLab BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
DESCRIPTION
StoreGPU library.
==========================================================================*/
/*==========================================================================
INCLUDES
==========================================================================*/
#include <cutil.h>
/*==========================================================================
DATA DECLARATIONS
==========================================================================*/
/*--------------------------------------------------------------------------
TYPE DEFINITIONS
--------------------------------------------------------------------------*/
typedef enum {
SG_OK = 0,
SG_ERR_DEV_MEM_OVERFLOW = -1,
} sg_status_type;
// defines a set of elapsed time measurements taken at specified states while
// running the GPU version of the hashing algorithm
typedef struct sg_time_breakdown {
float exec_time; /* kernel execution time */
float device_mem_alloc_time; /* time elapsed to allocate device buffers */
float host_output_buffer_alloc_time; /* time elapsed to allocate
host output buffer */
float copy_in_time; /* time elapsed to push data into the GPU */
float copy_out_time; /* time elapsed to get data from the GPU */
float last_stage_time; /* time elapsed doing the last stage of hasing
on the CPU*/
} sg_time_breakdown_type;
/*--------------------------------------------------------------------------
FUNCTION PROTOTYPES
--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------
CONSTANTS
--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------
GLOBAL VARIABLES
--------------------------------------------------------------------------*/
/*--------------------------------------------------------------------------
MACROS
--------------------------------------------------------------------------*/
/*==========================================================================
FUNCTIONS
==========================================================================*/
/*===========================================================================
FUNCTION SG_INIT
DESCRIPTION
Library initialization
DEPENDENCIES
None
RETURN VALUE
None
===========================================================================*/
void sg_init();
/*===========================================================================
FUNCTION SG_MALLOC
DESCRIPTION
Allocate the required memory size.
DEPENDENCIES
None
RETURN VALUE
pointer to the reseved buffer
===========================================================================*/
void* sg_malloc(unsigned int size);
/*===========================================================================
FUNCTION SG_FREE
DESCRIPTION
Free the allocated buffer.
DEPENDENCIES
None
RETURN VALUE
None
===========================================================================*/
void sg_free(void* buffer);
/*===========================================================================
FUNCTION SG_MD5
DESCRIPTION
Returns the MD5 hash of a the supplied buffer
DEPENDENCIES
None
RETURN VALUE
Hash value
===========================================================================*/
sg_status_type sg_md5(unsigned char* buffer, int size,
unsigned char** output, int* output_size,
sg_time_breakdown_type* time_break_down );
/*===========================================================================
FUNCTION SG_MD5_OVERLAP
DESCRIPTION
Returns the MD5 hash of each block for the provided buffer
DEPENDENCIES
None
RETURN VALUE
Hash value
===========================================================================*/
sg_status_type sg_md5_overlap(unsigned char* buffer, int size,
int block_size, int offset,
unsigned char** output, int* output_size,
sg_time_breakdown_type* time_breakdown);
/*===========================================================================
FUNCTION SG_SHA1
DESCRIPTION
Returns the SHA1 hash of a the supplied buffer
DEPENDENCIES
None
RETURN VALUE
Hash value
===========================================================================*/
sg_status_type sg_sha1(unsigned char* buffer, int size,
unsigned char** output, int* output_size,
sg_time_breakdown_type* time_breakdown);
/*===========================================================================
FUNCTION SG_SHA1_OVERLAP
DESCRIPTION
Returns the SHA1 hash of each block for the provided buffer
DEPENDENCIES
None
RETURN VALUE
Hash value
===========================================================================*/
sg_status_type sg_sha1_overlap(unsigned char* buffer, int size,
int block_size, int offset,
unsigned char** output, int* output_size,
sg_time_breakdown_type* time_breakdown);
#endif /* STOREGPU_H */
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