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// Copyright Epic Games, Inc. All Rights Reserved.
#include <fmt/format.h>
#include <zencore/except.h>
namespace zen {
#if ZEN_PLATFORM_WINDOWS
class WindowsException : public std::exception
{
public:
WindowsException(std::string_view Message)
{
m_hResult = HRESULT_FROM_WIN32(GetLastError());
m_Message = Message;
}
WindowsException(HRESULT hRes, std::string_view Message)
{
m_hResult = hRes;
m_Message = Message;
}
WindowsException(HRESULT hRes, const char* Message, const char* Detail)
{
m_hResult = hRes;
ExtendableStringBuilder<128> msg;
msg.Append(Message);
msg.Append(" (detail: '");
msg.Append(Detail);
msg.Append("')");
m_Message = msg.c_str();
}
virtual const char* what() const override { return m_Message.c_str(); }
private:
std::string m_Message;
HRESULT m_hResult;
};
void
ThrowSystemException([[maybe_unused]] HRESULT hRes, [[maybe_unused]] std::string_view Message)
{
if (HRESULT_FACILITY(hRes) == FACILITY_WIN32)
{
throw std::system_error(std::error_code(HRESULT_CODE(hRes), std::system_category()), std::string(Message));
}
else
{
throw WindowsException(hRes, Message);
}
}
#endif // ZEN_PLATFORM_WINDOWS
void
ThrowSystemError(uint32_t ErrorCode, std::string_view Message)
{
throw std::system_error(std::error_code(ErrorCode, std::system_category()), std::string(Message));
}
std::string
GetLastErrorAsString()
{
return GetSystemErrorAsString(zen::GetLastError());
}
std::string
GetSystemErrorAsString(uint32_t ErrorCode)
{
return std::error_code(ErrorCode, std::system_category()).message();
}
#if defined(__cpp_lib_source_location)
void
ThrowLastErrorImpl(std::string_view Message, const std::source_location& Location)
{
throw std::system_error(std::error_code(zen::GetLastError(), std::system_category()),
fmt::format("{}({}): {}", Location.file_name(), Location.line(), Message));
}
#else
void
ThrowLastError(std::string_view Message)
{
throw std::system_error(std::error_code(zen::GetLastError(), std::system_category()), std::string(Message));
}
#endif
#if ZEN_PLATFORM_WINDOWS
static const std::error_code OutOfMemoryErrorCode(ERROR_NOT_ENOUGH_MEMORY, std::system_category());
#else
static const std::error_code OutOfMemoryErrorCode(ENOMEM, std::system_category());
#endif
#if defined(__cpp_lib_source_location)
void
ThrowOutOfMemoryImpl(std::string_view Message, const std::source_location& Location)
{
throw std::system_error(OutOfMemoryErrorCode, fmt::format("{}({}): {}", Location.file_name(), Location.line(), Message));
}
#else
void
ThrowOutOfMemory(std::string_view Message)
{
throw std::system_error(OutOfMemoryErrorCode, std::string(Message));
}
#endif
#if ZEN_PLATFORM_WINDOWS
bool
IsOOM(const std::system_error& SystemError)
{
switch (SystemError.code().value())
{
case ERROR_NOT_ENOUGH_MEMORY:
case ERROR_OUTOFMEMORY:
case ERROR_PAGEFILE_QUOTA_EXCEEDED:
case ERROR_NO_SYSTEM_RESOURCES:
case ERROR_NONPAGED_SYSTEM_RESOURCES:
case ERROR_PAGED_SYSTEM_RESOURCES:
case ERROR_WORKING_SET_QUOTA:
case ERROR_PAGEFILE_QUOTA:
case ERROR_COMMITMENT_LIMIT:
return true;
default:
return false;
}
}
bool
IsOOD(const std::system_error& SystemError)
{
switch (SystemError.code().value())
{
case ERROR_HANDLE_DISK_FULL:
case ERROR_DISK_FULL:
case ERROR_DISK_RESOURCES_EXHAUSTED:
case ERROR_DISK_QUOTA_EXCEEDED:
return true;
default:
return false;
}
}
#else
bool
IsOOM(const std::system_error& SystemError)
{
switch (SystemError.code().value())
{
case ENOMEM:
return true;
default:
return false;
}
}
bool
IsOOD(const std::system_error& SystemError)
{
switch (SystemError.code().value())
{
case ENOSPC:
case EDQUOT:
return true;
default:
return false;
}
}
#endif
} // namespace zen
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