windows-xp/Source/XPSP1/NT/base/ntsetup/win95upg/w95upgnt/migmain/quota.h

//
// This was extracted from ntexapi.h because it
// won't compile along with windows.h.
//

typedef struct _SYSTEM_REGISTRY_QUOTA_INFORMATION {
    ULONG RegistryQuotaAllowed;
    ULONG RegistryQuotaUsed;
    ULONG PagedPoolSize;
} SYSTEM_REGISTRY_QUOTA_INFORMATION, *PSYSTEM_REGISTRY_QUOTA_INFORMATION;

typedef struct _SYSTEM_POOL_ENTRY {
    BOOLEAN Allocated;
    BOOLEAN Spare0;
    USHORT AllocatorBackTraceIndex;
    ULONG Size;
    union {
        UCHAR Tag[4];
        ULONG TagUlong;
        PVOID ProcessChargedQuota;
    };
} SYSTEM_POOL_ENTRY, *PSYSTEM_POOL_ENTRY;

typedef struct _SYSTEM_POOL_INFORMATION {
    ULONG TotalSize;
    PVOID FirstEntry;
    USHORT EntryOverhead;
    BOOLEAN PoolTagPresent;
    BOOLEAN Spare0;
    ULONG NumberOfEntries;
    SYSTEM_POOL_ENTRY Entries[1];
} SYSTEM_POOL_INFORMATION, *PSYSTEM_POOL_INFORMATION;

typedef enum _SYSTEM_INFORMATION_CLASS {
    SystemBasicInformation,
    SystemProcessorInformation,             // obsolete...delete
    SystemPerformanceInformation,
    SystemTimeOfDayInformation,
    SystemPathInformation,
    SystemProcessInformation,
    SystemCallCountInformation,
    SystemDeviceInformation,
    SystemProcessorPerformanceInformation,
    SystemFlagsInformation,
    SystemCallTimeInformation,
    SystemModuleInformation,
    SystemLocksInformation,
    SystemStackTraceInformation,
    SystemPagedPoolInformation,
    SystemNonPagedPoolInformation,
    SystemHandleInformation,
    SystemObjectInformation,
    SystemPageFileInformation,
    SystemVdmInstemulInformation,
    SystemVdmBopInformation,
    SystemFileCacheInformation,
    SystemPoolTagInformation,
    SystemInterruptInformation,
    SystemDpcBehaviorInformation,
    SystemFullMemoryInformation,
    SystemLoadGdiDriverInformation,
    SystemUnloadGdiDriverInformation,
    SystemTimeAdjustmentInformation,
    SystemSummaryMemoryInformation,
    SystemUnused1,
    SystemUnused2,
    SystemCrashDumpInformation,
    SystemExceptionInformation,
    SystemCrashDumpStateInformation,
    SystemKernelDebuggerInformation,
    SystemContextSwitchInformation,
    SystemRegistryQuotaInformation,
    SystemExtendServiceTableInformation,
    SystemPrioritySeperation,
    SystemUnused3,
    SystemUnused4,
    SystemUnused5,
    SystemUnused6,
    SystemCurrentTimeZoneInformation,
    SystemLookasideInformation,
    SystemTimeSlipNotification
} SYSTEM_INFORMATION_CLASS;

NTSYSAPI
NTSTATUS
NTAPI
NtQuerySystemInformation (
    IN SYSTEM_INFORMATION_CLASS SystemInformationClass,
    OUT PVOID SystemInformation,
    IN ULONG SystemInformationLength,
    OUT PULONG ReturnLength OPTIONAL
    );

NTSYSAPI
NTSTATUS
NTAPI
NtSetSystemInformation (
    IN SYSTEM_INFORMATION_CLASS SystemInformationClass,
    IN PVOID SystemInformation,
    IN ULONG SystemInformationLength
    );