hardware.h   hardware.h 
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* usage limit for decompressing or how much memory it is OK to use * usage limit for decompressing or how much memory it is OK to use
* for compressing. * for compressing.
* *
* \return On success, the total amount of physical memory in bytes * \return On success, the total amount of physical memory in bytes
* is returned. If the amount of RAM cannot be determined, * is returned. If the amount of RAM cannot be determined,
* zero is returned. This can happen if an error occurs * zero is returned. This can happen if an error occurs
* or if there is no code in liblzma to detect the amount * or if there is no code in liblzma to detect the amount
* of RAM on the specific operating system. * of RAM on the specific operating system.
*/ */
extern LZMA_API(uint64_t) lzma_physmem(void) lzma_nothrow; extern LZMA_API(uint64_t) lzma_physmem(void) lzma_nothrow;
/**
* \brief Get the number of processor cores or threads
*
* This function may be useful when determining how many threads to use.
* If the hardware supports more than one thread per CPU core, the number
* of hardware threads is returned if that information is available.
*
* \brief On success, the number of available CPU threads or cores is
* returned. If this information isn't available or an error
* occurs, zero is returned.
*/
extern LZMA_API(uint32_t) lzma_cputhreads(void) lzma_nothrow;
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