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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_TASK_MANAGER_SAMPLING_SHARED_SAMPLER_WIN_DEFINES_H_
#define CHROME_BROWSER_TASK_MANAGER_SAMPLING_SHARED_SAMPLER_WIN_DEFINES_H_
#include <windows.h>
#include <winternl.h>
#include "build/build_config.h"
namespace task_manager {
// From <wdm.h>
typedef LONG KPRIORITY;
typedef LONG KWAIT_REASON; // Full definition is in wdm.h
// From ntddk.h
typedef struct _VM_COUNTERS {
SIZE_T PeakVirtualSize;
SIZE_T VirtualSize;
ULONG PageFaultCount;
// Padding here in 64-bit
SIZE_T PeakWorkingSetSize;
SIZE_T WorkingSetSize;
SIZE_T QuotaPeakPagedPoolUsage;
SIZE_T QuotaPagedPoolUsage;
SIZE_T QuotaPeakNonPagedPoolUsage;
SIZE_T QuotaNonPagedPoolUsage;
SIZE_T PagefileUsage;
SIZE_T PeakPagefileUsage;
} VM_COUNTERS;
// Two possibilities available from here:
// http://stackoverflow.com/questions/28858849/where-is-system-information-class-defined
typedef enum _SYSTEM_INFORMATION_CLASS {
SystemProcessInformation = 5, // This is the number that we need.
} SYSTEM_INFORMATION_CLASS;
// https://msdn.microsoft.com/en-us/library/gg750647.aspx?f=255&MSPPError=-2147217396
typedef struct {
HANDLE UniqueProcess; // Actually process ID
HANDLE UniqueThread; // Actually thread ID
} CLIENT_ID;
// From http://alax.info/blog/1182, with corrections and modifications
// Originally from
// http://undocumented.ntinternals.net/index.html?page=UserMode%2FUndocumented%20Functions%2FSystem%20Information%2FStructures%2FSYSTEM_THREAD.html
struct SYSTEM_THREAD_INFORMATION {
ULONGLONG KernelTime;
ULONGLONG UserTime;
ULONGLONG CreateTime;
ULONG WaitTime;
// Padding here in 64-bit
PVOID StartAddress;
CLIENT_ID ClientId;
KPRIORITY Priority;
LONG BasePriority;
ULONG ContextSwitchCount;
ULONG State;
KWAIT_REASON WaitReason;
};
#if defined(ARCH_CPU_64_BITS)
static_assert(sizeof(SYSTEM_THREAD_INFORMATION) == 80,
"Structure size mismatch");
#else
static_assert(sizeof(SYSTEM_THREAD_INFORMATION) == 64,
"Structure size mismatch");
#endif
// From http://alax.info/blog/1182, with corrections and modifications
// Originally from
// http://undocumented.ntinternals.net/index.html?page=UserMode%2FUndocumented%20Functions%2FSystem%20Information%2FStructures%2FSYSTEM_THREAD.html
struct SYSTEM_PROCESS_INFORMATION {
ULONG NextEntryOffset;
ULONG NumberOfThreads;
// http://processhacker.sourceforge.net/doc/struct___s_y_s_t_e_m___p_r_o_c_e_s_s___i_n_f_o_r_m_a_t_i_o_n.html
ULONGLONG WorkingSetPrivateSize;
ULONG HardFaultCount;
ULONG Reserved1;
ULONGLONG CycleTime;
ULONGLONG CreateTime;
ULONGLONG UserTime;
ULONGLONG KernelTime;
UNICODE_STRING ImageName;
KPRIORITY BasePriority;
HANDLE ProcessId;
HANDLE ParentProcessId;
ULONG HandleCount;
ULONG Reserved2[2];
// Padding here in 64-bit
VM_COUNTERS VirtualMemoryCounters;
size_t Reserved3;
IO_COUNTERS IoCounters;
SYSTEM_THREAD_INFORMATION Threads[1];
};
#if defined(ARCH_CPU_64_BITS)
static_assert(sizeof(SYSTEM_PROCESS_INFORMATION) == 336,
"Structure size mismatch");
#else
static_assert(sizeof(SYSTEM_PROCESS_INFORMATION) == 248,
"Structure size mismatch");
#endif
typedef NTSTATUS(WINAPI* NTQUERYSYSTEMINFORMATION)(
SYSTEM_INFORMATION_CLASS SystemInformationClass,
PVOID SystemInformation,
ULONG SystemInformationLength,
PULONG ReturnLength);
} // namespace task_manager
#endif // CHROME_BROWSER_TASK_MANAGER_SAMPLING_SHARED_SAMPLER_WIN_DEFINES_H_
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