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common: switch to nullptr for sysctl's empty new value

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Jan Beich 2020-06-30 22:55:47 +00:00
parent e6085ea35f
commit 3b1683a152
1 changed files with 4 additions and 4 deletions
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8
src/common/memory_detect.cpp
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@ -40,16 +40,16 @@ static MemoryInfo Detect() {
// hw and vm are defined in sysctl.h // hw and vm are defined in sysctl.h
// https://github.com/apple/darwin-xnu/blob/master/bsd/sys/sysctl.h#L471 // https://github.com/apple/darwin-xnu/blob/master/bsd/sys/sysctl.h#L471
// sysctlbyname(const char *, void *, size_t *, void *, size_t); // sysctlbyname(const char *, void *, size_t *, void *, size_t);
sysctlbyname("hw.memsize", &ramsize, &sizeof_ramsize, NULL, 0); sysctlbyname("hw.memsize", &ramsize, &sizeof_ramsize, nullptr, 0);
sysctlbyname("vm.swapusage", &vmusage, &sizeof_vmusage, NULL, 0); sysctlbyname("vm.swapusage", &vmusage, &sizeof_vmusage, nullptr, 0);
mem_info.TotalPhysicalMemory = ramsize; mem_info.TotalPhysicalMemory = ramsize;
mem_info.TotalSwapMemory = vmusage.xsu_total; mem_info.TotalSwapMemory = vmusage.xsu_total;
#elif defined(__FreeBSD__) #elif defined(__FreeBSD__)
u_long physmem, swap_total; u_long physmem, swap_total;
std::size_t sizeof_u_long = sizeof(u_long); std::size_t sizeof_u_long = sizeof(u_long);
// sysctlbyname(const char *, void *, size_t *, const void *, size_t); // sysctlbyname(const char *, void *, size_t *, const void *, size_t);
sysctlbyname("hw.physmem", &physmem, &sizeof_u_long, NULL, 0); sysctlbyname("hw.physmem", &physmem, &sizeof_u_long, nullptr, 0);
sysctlbyname("vm.swap_total", &swap_total, &sizeof_u_long, NULL, 0); sysctlbyname("vm.swap_total", &swap_total, &sizeof_u_long, nullptr, 0);
mem_info.TotalPhysicalMemory = physmem; mem_info.TotalPhysicalMemory = physmem;
mem_info.TotalSwapMemory = swap_total; mem_info.TotalSwapMemory = swap_total;
#elif defined(__linux__) #elif defined(__linux__)