diff options
Diffstat (limited to 'include/llfio/v2.0/detail/impl/windows/utils.ipp')
| -rw-r--r-- | include/llfio/v2.0/detail/impl/windows/utils.ipp | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/include/llfio/v2.0/detail/impl/windows/utils.ipp b/include/llfio/v2.0/detail/impl/windows/utils.ipp index 0735b4d2..d4516000 100644 --- a/include/llfio/v2.0/detail/impl/windows/utils.ipp +++ b/include/llfio/v2.0/detail/impl/windows/utils.ipp @@ -129,7 +129,8 @@ namespace utils tp.PrivilegeCount = 1; tp.Privileges[0].Luid = luid; tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; - if(AdjustTokenPrivileges(processToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), static_cast<PTOKEN_PRIVILEGES>(nullptr), static_cast<PDWORD>(nullptr)) == 0) + if(AdjustTokenPrivileges(processToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), static_cast<PTOKEN_PRIVILEGES>(nullptr), static_cast<PDWORD>(nullptr)) == + 0) { return win32_error(); } @@ -184,7 +185,8 @@ namespace utils tp.PrivilegeCount = 1; tp.Privileges[0].Luid = luid; tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; - if(AdjustTokenPrivileges(processToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), static_cast<PTOKEN_PRIVILEGES>(nullptr), static_cast<PDWORD>(nullptr)) == 0) + if(AdjustTokenPrivileges(processToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), static_cast<PTOKEN_PRIVILEGES>(nullptr), static_cast<PDWORD>(nullptr)) == + 0) { return win32_error(); } @@ -205,7 +207,8 @@ namespace utils return success(); } - result<process_memory_usage> current_process_memory_usage() noexcept { + result<process_memory_usage> current_process_memory_usage() noexcept + { // Amazingly Win32 doesn't expose private working set, so to avoid having // to iterate all the pages in the process and calculate, use a hidden // NT kernel call @@ -239,6 +242,33 @@ namespace utils return ret; } + result<process_cpu_usage> current_process_cpu_usage() noexcept + { + process_cpu_usage ret; + memset(&ret, 0, sizeof(ret)); + { + FILETIME IdleTime, KernelTime, UserTime; + if(GetSystemTimes(&IdleTime, &KernelTime, &UserTime) == 0) + { + return win32_error(); + } + ret.system_ns_in_idle_mode = (((uint64_t) IdleTime.dwHighDateTime << 32U) | IdleTime.dwLowDateTime) * 100; + ret.system_ns_in_kernel_mode = (((uint64_t) KernelTime.dwHighDateTime << 32U) | KernelTime.dwLowDateTime) * 100; + ret.system_ns_in_user_mode = (((uint64_t) UserTime.dwHighDateTime << 32U) | UserTime.dwLowDateTime) * 100; + } + { + FILETIME CreationTime, ExitTime, KernelTime, UserTime; + if(GetProcessTimes(GetCurrentProcess(), &CreationTime, &ExitTime, &KernelTime, &UserTime) == 0) + { + return win32_error(); + } + // Is it worth adjusting KernelTime and UserTime by QueryProcessCycleTime to make them TSC granularity? + ret.process_ns_in_kernel_mode = (((uint64_t) KernelTime.dwHighDateTime << 32U) | KernelTime.dwLowDateTime) * 100; + ret.process_ns_in_user_mode = (((uint64_t) UserTime.dwHighDateTime << 32U) | UserTime.dwLowDateTime) * 100; + } + return ret; + } + namespace detail { large_page_allocation allocate_large_pages(size_t bytes) |