xz/src/lzma/hardware.h

46 lines
1.5 KiB
C

///////////////////////////////////////////////////////////////////////////////
//
/// \file hardware.c
/// \brief Detection of available hardware resources
//
// Copyright (C) 2007 Lasse Collin
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// 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
// Lesser General Public License for more details.
//
///////////////////////////////////////////////////////////////////////////////
#ifndef HARDWARE_H
#define HARDWARE_H
#include "private.h"
extern size_t opt_threads;
/// Initialize some hardware-specific variables, which are needed by other
/// hardware_* functions.
extern void hardware_init(void);
/// Set custom memory usage limit. This is used for both encoding and
/// decoding. Zero indicates resetting the limit back to defaults.
extern void hardware_memlimit_set(uint64_t memlimit);
/// Get the memory usage limit for encoding. By default this is 90 % of RAM.
extern uint64_t hardware_memlimit_encoder(void);
/// Get the memory usage limit for decoding. By default this is 30 % of RAM.
extern uint64_t hardware_memlimit_decoder(void);
#endif