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common: add sysconf() fallback

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src/common/memory_detect.cpp:15:10: fatal error: 'sys/sysinfo.h' file not found
 #include <sys/sysinfo.h>
          ^~~~~~~~~~~~~~~
This commit is contained in:
Jan Beich 2020-06-29 22:39:31 +00:00
parent f84cbf6429
commit e6085ea35f
1 changed files with 16 additions and 3 deletions
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19
src/common/memory_detect.cpp
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@ -9,10 +9,12 @@
// clang-format on // clang-format on
#else #else
#include <sys/types.h> #include <sys/types.h>
#ifdef __APPLE__ #if defined(__APPLE__) || defined(__FreeBSD__)
#include <sys/sysctl.h> #include <sys/sysctl.h>
#else #elif defined(__linux__)
#include <sys/sysinfo.h> #include <sys/sysinfo.h>
#else
#include <unistd.h>
#endif #endif
#endif #endif
@ -42,11 +44,22 @@ static MemoryInfo Detect() {
sysctlbyname("vm.swapusage", &vmusage, &sizeof_vmusage, NULL, 0); sysctlbyname("vm.swapusage", &vmusage, &sizeof_vmusage, NULL, 0);
mem_info.TotalPhysicalMemory = ramsize; mem_info.TotalPhysicalMemory = ramsize;
mem_info.TotalSwapMemory = vmusage.xsu_total; mem_info.TotalSwapMemory = vmusage.xsu_total;
#else #elif defined(__FreeBSD__)
u_long physmem, swap_total;
std::size_t sizeof_u_long = sizeof(u_long);
// sysctlbyname(const char *, void *, size_t *, const void *, size_t);
sysctlbyname("hw.physmem", &physmem, &sizeof_u_long, NULL, 0);
sysctlbyname("vm.swap_total", &swap_total, &sizeof_u_long, NULL, 0);
mem_info.TotalPhysicalMemory = physmem;
mem_info.TotalSwapMemory = swap_total;
#elif defined(__linux__)
struct sysinfo meminfo; struct sysinfo meminfo;
sysinfo(&meminfo); sysinfo(&meminfo);
mem_info.TotalPhysicalMemory = meminfo.totalram; mem_info.TotalPhysicalMemory = meminfo.totalram;
mem_info.TotalSwapMemory = meminfo.totalswap; mem_info.TotalSwapMemory = meminfo.totalswap;
#else
mem_info.TotalPhysicalMemory = sysconf(_SC_PHYS_PAGES) * sysconf(_SC_PAGE_SIZE);
mem_info.TotalSwapMemory = 0;
#endif #endif
return mem_info; return mem_info;