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