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Merged
merged 1 commit into from
Oct 7, 2025
Merged

Add project namespace #15

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4 changes: 2 additions & 2 deletions Code/EntryPoint.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@ int main(int argc, const char * argv[]) {
return -1;
}

auto processor_information = GetProcessorInformation();
auto processor_information = FileReadSpeedTest::GetProcessorInformation();
if (!processor_information.has_value()) {
std::cerr << "Error: Could not find processor information." << std::endl;
return -1;
Expand All @@ -26,7 +26,7 @@ int main(int argc, const char * argv[]) {
}
std::cout << std::endl;

auto overlapped_io_file_read = PrepareToReadFile(argv[1], processor_information->actual_cores_);
auto overlapped_io_file_read = FileReadSpeedTest::PrepareToReadFile(argv[1], processor_information->actual_cores_);
if (!overlapped_io_file_read.has_value()) {
std::cerr << "Error";
return -1;
Expand Down
136 changes: 70 additions & 66 deletions Code/GetProcessorInformation.cpp
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Expand Up @@ -13,82 +13,86 @@

//#include <iostream>

/*struct ProcessorInformation {
int actual_cores_;
int hyperthreading_cores_;
};*/
namespace FileReadSpeedTest {

std::optional<ProcessorCoreInformation> GetProcessorInformation() noexcept {
DWORD required_buffer_size = 0;
BOOL result = GetLogicalProcessorInformation(nullptr, &required_buffer_size);
if (result == FALSE) {
DWORD error_code = GetLastError();
if (error_code != ERROR_INSUFFICIENT_BUFFER) {
/*struct ProcessorInformation {
int actual_cores_;
int hyperthreading_cores_;
};*/

std::optional<ProcessorCoreInformation> GetProcessorInformation() noexcept {
DWORD required_buffer_size = 0;
BOOL result = GetLogicalProcessorInformation(nullptr, &required_buffer_size);
if (result == FALSE) {
DWORD error_code = GetLastError();
if (error_code != ERROR_INSUFFICIENT_BUFFER) {
return std::nullopt;
}
}
size_t processor_information_count = required_buffer_size / sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
auto processor_information = std::make_unique<SYSTEM_LOGICAL_PROCESSOR_INFORMATION[]>(processor_information_count);
result = GetLogicalProcessorInformation(processor_information.get(), &required_buffer_size);
if (result == FALSE) {
return std::nullopt;
}
}
size_t processor_information_count = required_buffer_size / sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
auto processor_information = std::make_unique<SYSTEM_LOGICAL_PROCESSOR_INFORMATION[]>(processor_information_count);
result = GetLogicalProcessorInformation(processor_information.get(), &required_buffer_size);
if (result == FALSE) {
return std::nullopt;
}

ProcessorCoreInformation processor_core_information = {};
ProcessorCoreInformation processor_core_information = {};

for(DWORD i = 0; i < processor_information_count; i++) {
//std::cout << "Core " << i << ": " << processor_information[i].ProcessorMask << std::endl;
switch (processor_information[i].Relationship) {
/*
case RelationProcessorPackage:
std::cout << "\tPhysical package" << std::endl;
break;
case RelationNumaNode:
std::cout << "\tNUMA node: " << processor_information[i].NumaNode.NodeNumber << std::endl;
break;
*/
case RelationProcessorCore:
{
processor_core_information.actual_cores_++;
if (processor_information[i].ProcessorCore.Flags == 1) {
processor_core_information.hyperthreading_cores_++;
}
}
break;
/*
case RelationCache:
std::cout << "\tL";
switch (processor_information[i].Cache.Level) {
case 1:
std::cout << "1 ";
break;
case 2:
std::cout << "2 ";
for(DWORD i = 0; i < processor_information_count; i++) {
//std::cout << "Core " << i << ": " << processor_information[i].ProcessorMask << std::endl;
switch (processor_information[i].Relationship) {
/*
case RelationProcessorPackage:
std::cout << "\tPhysical package" << std::endl;
break;
case 3:
std::cout << "3 ";
case RelationNumaNode:
std::cout << "\tNUMA node: " << processor_information[i].NumaNode.NodeNumber << std::endl;
break;
*/
case RelationProcessorCore:
{
processor_core_information.actual_cores_++;
if (processor_information[i].ProcessorCore.Flags == 1) {
processor_core_information.hyperthreading_cores_++;
}
}
switch (processor_information[i].Cache.Type) {
case CacheUnified:
std::cout << "unified";
break;
case CacheInstruction:
std::cout << "instuction";
break;
case CacheData:
std::cout << "data";
break;
case CacheTrace:
std::cout << "trace";
break;
/*
case RelationCache:
std::cout << "\tL";
switch (processor_information[i].Cache.Level) {
case 1:
std::cout << "1 ";
break;
case 2:
std::cout << "2 ";
break;
case 3:
std::cout << "3 ";
break;
}
switch (processor_information[i].Cache.Type) {
case CacheUnified:
std::cout << "unified";
break;
case CacheInstruction:
std::cout << "instuction";
break;
case CacheData:
std::cout << "data";
break;
case CacheTrace:
std::cout << "trace";
break;
}
std::cout << " cache, " << processor_information[i].Cache.Size << " KiB" << std::endl;
std::cout << "\tCache line size: " << processor_information[i].Cache.LineSize << " KiB" << std::endl;
break;
*/
}
std::cout << " cache, " << processor_information[i].Cache.Size << " KiB" << std::endl;
std::cout << "\tCache line size: " << processor_information[i].Cache.LineSize << " KiB" << std::endl;
break;
*/
}

return processor_core_information;
}

return processor_core_information;
}
} // namespace FileReadSpeedTest
22 changes: 13 additions & 9 deletions Code/GetProcessorInformation.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2,17 +2,21 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef GETPROCESSORINFORMATION_HPP
#define GETPROCESSORINFORMATION_HPP
#ifndef FILEREADSPEEDTEST_GETPROCESSORINFORMATION_HPP
#define FILEREADSPEEDTEST_GETPROCESSORINFORMATION_HPP

#include <optional>

class ProcessorCoreInformation {
public:
int actual_cores_;
int hyperthreading_cores_;
};
namespace FileReadSpeedTest {

std::optional<ProcessorCoreInformation> GetProcessorInformation() noexcept;
class ProcessorCoreInformation {
public:
int actual_cores_;
int hyperthreading_cores_;
};

#endif // #ifndef GETPROCESSORINFORMATION_HPP
std::optional<ProcessorCoreInformation> GetProcessorInformation() noexcept;

} // namespace FileReadSpeedTest

#endif // #ifndef FILEREADSPEEDTEST_GETPROCESSORINFORMATION_HPP
40 changes: 22 additions & 18 deletions Code/OSAllocator.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -11,28 +11,32 @@
#endif
#include <Windows.h>

OSAllocation::OSAllocation(void* memory) noexcept
: memory_(std::move(memory))
{}
namespace FileReadSpeedTest {

OSAllocation::OSAllocation(void* memory) noexcept
: memory_(std::move(memory))
{}

std::optional<OSAllocation> OSAllocator::allocate(size_t size) noexcept {
void* pointer = VirtualAlloc(NULL, size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
if (pointer == NULL) {
// GetLastError()
return std::nullopt;
}

return OSAllocation{pointer};
}

void OSAllocator::deallocate(OSAllocation& allocation) noexcept {
if (allocation.memory_) {
BOOL result = VirtualFree(allocation.memory_, 0, MEM_RELEASE);
if (result == 0) {
std::optional<OSAllocation> OSAllocator::allocate(size_t size) noexcept {
void* pointer = VirtualAlloc(NULL, size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
if (pointer == NULL) {
// GetLastError()
return std::nullopt;
}

allocation.memory_ = nullptr;
return OSAllocation{pointer};
}
}

void OSAllocator::deallocate(OSAllocation& allocation) noexcept {
if (allocation.memory_) {
BOOL result = VirtualFree(allocation.memory_, 0, MEM_RELEASE);
if (result == 0) {
// GetLastError()
}

allocation.memory_ = nullptr;
}
}

} // namespace FileReadSpeedTest
30 changes: 17 additions & 13 deletions Code/OSAllocator.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2,26 +2,30 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef OSALLOCATOR_HPP
#define OSALLOCATOR_HPP
#ifndef FILEREADSPEEDTEST_OSALLOCATOR_HPP
#define FILEREADSPEEDTEST_OSALLOCATOR_HPP

#include <optional>

class OSAllocation {
public:
namespace FileReadSpeedTest {

explicit OSAllocation(void* memory) noexcept;
class OSAllocation {
public:

void* memory_;
explicit OSAllocation(void* memory) noexcept;

};
void* memory_;

class OSAllocator {
public:
};

static std::optional<OSAllocation> allocate(size_t size) noexcept;
static void deallocate(OSAllocation& allocation) noexcept;
class OSAllocator {
public:

};
static std::optional<OSAllocation> allocate(size_t size) noexcept;
static void deallocate(OSAllocation& allocation) noexcept;

#endif // #ifndef OSALLOCATOR_HPP
};

} // namespace FileReadSpeedTest

#endif // #ifndef FILEREADSPEEDTEST_OSALLOCATOR_HPP
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