| /** |
| * \file lzma/hardware.h |
| * \brief Hardware information |
| * |
| * Since liblzma can consume a lot of system resources, it also provides |
| * ways to limit the resource usage. Applications linking against liblzma |
| * need to do the actual decisions how much resources to let liblzma to use. |
| * To ease making these decisions, liblzma provides functions to find out |
| * the relevant capabilities of the underlaying hardware. Currently there |
| * is only a function to find out the amount of RAM, but in the future there |
| * will be also a function to detect how many concurrent threads the system |
| * can run. |
| * |
| * \note On some operating systems, these function may temporarily |
| * load a shared library or open file descriptor(s) to find out |
| * the requested hardware information. Unless the application |
| * assumes that specific file descriptors are not touched by |
| * other threads, this should have no effect on thread safety. |
| * Possible operations involving file descriptors will restart |
| * the syscalls if they return EINTR. |
| */ |
| |
| /* |
| * Author: Lasse Collin |
| * |
| * This file has been put into the public domain. |
| * You can do whatever you want with this file. |
| * |
| * See ../lzma.h for information about liblzma as a whole. |
| */ |
| |
| #ifndef LZMA_H_INTERNAL |
| # error Never include this file directly. Use <lzma.h> instead. |
| #endif |
| |
| |
| /** |
| * \brief Get the total amount of physical memory (RAM) in bytes |
| * |
| * This function may be useful when determining a reasonable memory |
| * usage limit for decompressing or how much memory it is OK to use |
| * for compressing. |
| * |
| * \return On success, the total amount of physical memory in bytes |
| * is returned. If the amount of RAM cannot be determined, |
| * zero is returned. This can happen if an error occurs |
| * or if there is no code in liblzma to detect the amount |
| * of RAM on the specific operating system. |
| */ |
| extern LZMA_API(uint64_t) lzma_physmem(void) lzma_nothrow; |
