hardware.h revision 292588 
1///////////////////////////////////////////////////////////////////////////////
2//
3/// \file       hardware.h
4/// \brief      Detection of available hardware resources
5//
6//  Author:     Lasse Collin
7//
8//  This file has been put into the public domain.
9//  You can do whatever you want with this file.
10//
11///////////////////////////////////////////////////////////////////////////////
12
13/// Initialize some hardware-specific variables, which are needed by other
14/// hardware_* functions.
15extern void hardware_init(void);
16
17
18/// Set the maximum number of worker threads.
19extern void hardware_threads_set(uint32_t threadlimit);
20
21/// Get the maximum number of worker threads.
22extern uint32_t hardware_threads_get(void);
23
24
25/// Set the memory usage limit. There are separate limits for compression
26/// and decompression (the latter includes also --list), one or both can
27/// be set with a single call to this function. Zero indicates resetting
28/// the limit back to the defaults. The limit can also be set as a percentage
29/// of installed RAM; the percentage must be in the range [1, 100].
30extern void hardware_memlimit_set(uint64_t new_memlimit,
31		bool set_compress, bool set_decompress, bool is_percentage);
32
33/// Get the current memory usage limit for compression or decompression.
34extern uint64_t hardware_memlimit_get(enum operation_mode mode);
35
36/// Display the amount of RAM and memory usage limits and exit.
37extern void hardware_memlimit_show(void) lzma_attribute((__noreturn__));
38