src/liblzma/common/hardware_cputhreads.c

   1 ///////////////////////////////////////////////////////////////////////////////
   2 //
   3 /// \file       hardware_cputhreads.c
   4 /// \brief      Get the number of CPU threads or cores
   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 #include "common.h"
  14
  15 #include "tuklib_cpucores.h"
  16
  17
  18 #ifdef HAVE_SYMBOL_VERSIONS_LINUX
  19 // This is for compatibility with binaries linked against liblzma that
  20 // has been patched with xz-5.2.2-compat-libs.patch from RHEL/CentOS 7.
  21 LZMA_SYMVER_API("lzma_cputhreads@XZ_5.2.2",
  22         uint32_t, lzma_cputhreads_522)(void) lzma_nothrow
  23                 __attribute__((__alias__("lzma_cputhreads_52")));
  24
  25 LZMA_SYMVER_API("lzma_cputhreads@@XZ_5.2",
  26         uint32_t, lzma_cputhreads_52)(void) lzma_nothrow;
  27
  28 #define lzma_cputhreads lzma_cputhreads_52
  29 #endif
  30 extern LZMA_API(uint32_t)
  31 lzma_cputhreads(void)
  32 {
  33         return tuklib_cpucores();
  34 }