The ROme OpTimistic Simulator  2.0.0
A General-Purpose Multithreaded Parallel/Distributed Simulation Platform
Data Structures | Enumerations | Functions
xxhash.h File Reference

Fast Hash Algorithm. More...

#include <stddef.h>
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Data Structures

struct  XXH32_state_t
 
struct  XXH64_state_t
 

Enumerations

enum  XXH_errorcode { XXH_OK = 0, XXH_ERROR }
 

Functions

unsigned int XXH32 (const void *input, size_t length, unsigned seed)
 
unsigned long long XXH64 (const void *input, size_t length, unsigned long long seed)
 

Detailed Description

Fast Hash Algorithm.

xxHash - Fast Hash algorithm

This functions are used to compute hashes of the payload of events when the --enable-extra-checks option is specified. This allows to check whether an event handler has modified the content of an event during processing. This is a serious bug in models which is very hard to spot. Indeed, since events are replayed in optimistic simulation, altering the content of an event will lead to undefined simulation results when an event is executed again due to a rollback, silent execution, or state reconstruction fo CCGS.

Copyright
Copyright (C) 2012-2014, Yann Collet.

BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)

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 iqueues/n 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.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER OR CONTRIBUTORS 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.

Author
Yann Collet

You can contact the author at :

Definition in file xxhash.h.