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DarwinMisc: Use template sysctlbyname

This commit is contained in:
Stenzek 2024-06-14 20:28:10 +10:00 committed by Connor McLaughlin
parent 774f68936d
commit 480bd2da4b
1 changed files with 11 additions and 20 deletions
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31
common/Darwin/DarwinMisc.cpp
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@ -87,17 +87,19 @@ static std::string sysctl_str(int category, int name)
return std::string(buf, len > 0 ? len - 1 : 0);
}
static std::optional<u32> sysctlbyname_u32(const char* name)
template <typename T>
static std::optional<T> sysctlbyname_T(const char* name)
{
u32 output;
T output = 0;
size_t output_size = sizeof(output);
if (0 != sysctlbyname(name, &output, &output_size, nullptr, 0))
if (sysctlbyname(name, &output, &output_size, nullptr, 0) != 0)
return std::nullopt;
if (output_size != sizeof(output))
{
DevCon.WriteLn("(DarwinMisc) sysctl %s gave unexpected size %zd", name, output_size);
ERROR_LOG("(DarwinMisc) sysctl {} gave unexpected size {}", name, output_size);
return std::nullopt;
}
return output;
}
@ -151,15 +153,15 @@ std::vector<DarwinMisc::CPUClass> DarwinMisc::GetCPUClasses()
{
std::vector<CPUClass> out;
if (std::optional<u32> nperflevels = sysctlbyname_u32("hw.nperflevels"))
if (std::optional<u32> nperflevels = sysctlbyname_T<u32>("hw.nperflevels"))
{
char name[64];
for (u32 i = 0; i < *nperflevels; i++)
{
snprintf(name, sizeof(name), "hw.perflevel%u.physicalcpu", i);
std::optional<u32> physicalcpu = sysctlbyname_u32(name);
std::optional<u32> physicalcpu = sysctlbyname_T<u32>(name);
snprintf(name, sizeof(name), "hw.perflevel%u.logicalcpu", i);
std::optional<u32> logicalcpu = sysctlbyname_u32(name);
std::optional<u32> logicalcpu = sysctlbyname_T<u32>(name);
char levelname[64];
size_t levelname_size = sizeof(levelname);
@ -177,9 +179,9 @@ std::vector<DarwinMisc::CPUClass> DarwinMisc::GetCPUClasses()
out.push_back({levelname, *physicalcpu, *logicalcpu});
}
}
else if (std::optional<u32> physcpu = sysctlbyname_u32("hw.physicalcpu"))
else if (std::optional<u32> physcpu = sysctlbyname_T<u32>("hw.physicalcpu"))
{
out.push_back({"Default", *physcpu, sysctlbyname_u32("hw.logicalcpu").value_or(0)});
out.push_back({"Default", *physcpu, sysctlbyname_T<u32>("hw.logicalcpu").value_or(0)});
}
else
{
@ -189,17 +191,6 @@ std::vector<DarwinMisc::CPUClass> DarwinMisc::GetCPUClasses()
return out;
}
template <typename T>
static std::optional<T> sysctlbyname_T(const char* name)
{
T output = 0;
size_t output_size = sizeof(output);
if (sysctlbyname(name, &output, &output_size, nullptr, 0) != 0)
return std::nullopt;
return output;
}
size_t HostSys::GetRuntimePageSize()
{
return sysctlbyname_T<u32>("hw.pagesize").value_or(0);