reactos/ntoskrnl/include/internal/ps.h

   1 /*
   2  *  ReactOS kernel
   3  *  Copyright (C) 2000 David Welch <welch@cwcom.net>
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /*
  20  * FILE:            ntoskrnl/ke/kthread.c
  21  * PURPOSE:         Process manager definitions
  22  * PROGRAMMER:      David Welch (welch@cwcom.net)
  23  * UPDATE HISTORY:
  24  *                  Created 22/05/98
  25  */
  26
  27 #ifndef __INCLUDE_INTERNAL_PS_H
  28 #define __INCLUDE_INTERNAL_PS_H
  29
  30 /*
  31  * Defines for accessing KPCR and KTHREAD structure members
  32  */
  33 #define KTHREAD_INITIAL_STACK     0x18
  34 #define KTHREAD_TEB               0x20
  35 #define KTHREAD_KERNEL_STACK      0x28
  36 #define KTHREAD_PREVIOUS_MODE     0x137
  37 #define KTHREAD_TRAP_FRAME        0x128
  38
  39 #define ETHREAD_THREADS_PROCESS   0x258
  40
  41 #define KPROCESS_DIRECTORY_TABLE_BASE 0x18
  42
  43 #define KPCR_BASE                 0xFF000000
  44
  45 #define KPCR_EXCEPTION_LIST       0x0
  46 #define KPCR_SELF                 0x18
  47 #define KPCR_TSS                  0x28
  48 #define KPCR_CURRENT_THREAD       0x124
  49
  50 #ifndef __ASM__
  51
  52 #include <internal/mm.h>
  53
  54 struct _KTHREAD;
  55 struct _KTRAPFRAME;
  56
  57 /* FIXME: This does not work if we have more than 24 IRQs (ie. more than one I/O APIC) */
  58 #define VECTOR2IRQ(vector) (((vector) - 0x31) / 8)
  59 #define VECTOR2IRQL(vector) (4 + VECTOR2IRQ(vector))
  60
  61 /*
  62  * Processor Control Region
  63  */
  64 typedef struct _KPCR
  65 {
  66   PVOID ExceptionList;               /* 00 */
  67   PVOID StackBase;                   /* 04 */
  68   PVOID StackLimit;                  /* 08 */
  69   PVOID SubSystemTib;                /* 0C */
  70   PVOID Reserved1;                   /* 10 */
  71   PVOID ArbitraryUserPointer;        /* 14 */
  72   struct _KPCR* Self;                /* 18 */
  73   UCHAR ProcessorNumber;             /* 1C */
  74   KIRQL Irql;                        /* 1D */
  75   UCHAR Reserved2[0x2];              /* 1E */
  76   PUSHORT IDT;                       /* 20 */
  77   PUSHORT GDT;                       /* 24 */
  78   KTSS* TSS;                         /* 28 */
  79   UCHAR Reserved3[0xF8];             /* 2C */
  80   struct _KTHREAD* CurrentThread;    /* 124 */
  81 } __attribute__((packed)) KPCR, *PKPCR;
  82
  83 static inline PKPCR KeGetCurrentKPCR(VOID)
  84 {
  85   ULONG value;
  86
  87   __asm__ __volatile__ ("movl %%fs:0x18, %0\n\t"
  88           : "=r" (value)
  89     : /* no inputs */
  90     );
  91   return((PKPCR)value);
  92 }
  93
  94 #define KeGetCurrentProcessorNumber() (KeGetCurrentKPCR()->ProcessorNumber)
  95
  96 extern HANDLE SystemProcessHandle;
  97
  98 extern LCID PsDefaultThreadLocaleId;
  99 extern LCID PsDefaultSystemLocaleId;
 100
 101
 102 typedef struct _KAPC_STATE
 103 {
 104    LIST_ENTRY ApcListHead[2];
 105    struct _KPROCESS* Process;
 106    UCHAR KernelApcInProgress;
 107    UCHAR KernelApcPending;
 108    USHORT UserApcPending;
 109 } __attribute__((packed)) KAPC_STATE, *PKAPC_STATE;
 110
 111 typedef struct _KTHREAD
 112 {
 113    /* For waiting on thread exit */
 114    DISPATCHER_HEADER DispatcherHeader;    /* 00 */
 115
 116    /* List of mutants owned by the thread */
 117    LIST_ENTRY        MutantListHead;      /* 10 */
 118    PVOID             InitialStack;        /* 18 */
 119    ULONG             StackLimit;          /* 1C */
 120
 121    /* Pointer to the thread's environment block in user memory */
 122    PTEB              Teb;                 /* 20 */
 123
 124    /* Pointer to the thread's TLS array */
 125    PVOID             TlsArray;            /* 24 */
 126    PVOID             KernelStack;         /* 28 */
 127    UCHAR             DebugActive;         /* 2C */
 128
 129    /* Thread state (one of THREAD_STATE_xxx constants below) */
 130    UCHAR             State;               /* 2D */
 131    UCHAR             Alerted[2];          /* 2E */
 132    UCHAR             Iopl;                /* 30 */
 133    UCHAR             NpxState;            /* 31 */
 134    UCHAR             Saturation;          /* 32 */
 135    CHAR              Priority;            /* 33 */
 136    KAPC_STATE        ApcState;            /* 34 */
 137    ULONG             ContextSwitches;     /* 4C */
 138    ULONG             WaitStatus;          /* 50 */
 139    KIRQL             WaitIrql;            /* 54 */
 140    UCHAR             WaitMode;            /* 55 */
 141    UCHAR             WaitNext;            /* 56 */
 142    UCHAR             WaitReason;          /* 57 */
 143    PKWAIT_BLOCK      WaitBlockList;       /* 58 */
 144    LIST_ENTRY        WaitListEntry;       /* 5C */
 145    ULONG             WaitTime;            /* 64 */
 146    CHAR              BasePriority;        /* 68 */
 147    UCHAR             DecrementCount;      /* 69 */
 148    UCHAR             PriorityDecrement;   /* 6A */
 149    UCHAR             Quantum;             /* 6B */
 150    KWAIT_BLOCK       WaitBlock[4];        /* 6C */
 151    PVOID             LegoData;            /* CC */
 152    LONG              KernelApcDisable;    /* D0 */
 153    KAFFINITY         UserAffinity;        /* D4 */
 154    UCHAR             SystemAffinityActive;/* D8 */
 155    UCHAR             Pad[7];              /* D9 */
 156    PKQUEUE           Queue;               /* E0 */
 157    KSPIN_LOCK        ApcQueueLock;        /* E4 */
 158    KTIMER            Timer;               /* E8 */
 159    LIST_ENTRY        QueueListEntry;      /* 110 */
 160    KAFFINITY         Affinity;            /* 118 */
 161    UCHAR             Preempted;           /* 11C */
 162    UCHAR             ProcessReadyQueue;   /* 11D */
 163    UCHAR             KernelStackResident; /* 11E */
 164    UCHAR             NextProcessor;       /* 11F */
 165    PVOID             CallbackStack;       /* 120 */
 166    BOOL              Win32Thread;         /* 124 */
 167    struct _KTRAP_FRAME*      TrapFrame;   /* 128 */
 168    PVOID             ApcStatePointer[2];  /* 12C */
 169    UCHAR             EnableStackSwap;     /* 134 */
 170    UCHAR             LargeStack;          /* 135 */
 171    UCHAR             ResourceIndex;       /* 136 */
 172    UCHAR             PreviousMode;        /* 137 */
 173    ULONG             KernelTime;          /* 138 */
 174    ULONG             UserTime;            /* 13C */
 175    KAPC_STATE        SavedApcState;       /* 140 */
 176    UCHAR             Alertable;           /* 158 */
 177    UCHAR             ApcStateIndex;       /* 159 */
 178    UCHAR             ApcQueueable;        /* 15A */
 179    UCHAR             AutoAlignment;       /* 15B */
 180    PVOID             StackBase;           /* 15C */
 181    KAPC              SuspendApc;          /* 160 */
 182    KSEMAPHORE        SuspendSemaphore;    /* 190 */
 183    LIST_ENTRY        ThreadListEntry;     /* 1A4 */
 184    CHAR              FreezeCount;         /* 1AC */
 185    UCHAR             SuspendCount;        /* 1AD */
 186    UCHAR             IdealProcessor;      /* 1AE */
 187    UCHAR             DisableBoost;        /* 1AF */
 188
 189    /*
 190     * Below here are thread structure members that are specific to ReactOS
 191     */
 192
 193    /* Added by Phillip Susi for list of threads in a process */
 194    LIST_ENTRY        ProcessThreadListEntry;         /* 1B0 */
 195
 196    /* Added by Phillip Susi for internal KeAddThreadTimeout() implementation */
 197    KDPC              TimerDpc;                       /* 1B8 */
 198
 199    /* Record the last EIP value when the thread is suspended */
 200    ULONG             LastEip;                        /* 1D8 */
 201 } __attribute__((packed)) KTHREAD, *PKTHREAD;
 202
 203 // According to documentation the stack should have a commited [ 1 page ] and
 204 // a reserved part [ 1 M ] but can be specified otherwise in the image file.
 205
 206
 207
 208
 209
 210
 211
 212 // TopLevelIrp can be one of the following values:
 213 // FIXME I belong somewhere else
 214
 215 #define         FSRTL_FSP_TOP_LEVEL_IRP                 (0x01)
 216 #define         FSRTL_CACHE_TOP_LEVEL_IRP               (0x02)
 217 #define         FSRTL_MOD_WRITE_TOP_LEVEL_IRP           (0x03)
 218 #define         FSRTL_FAST_IO_TOP_LEVEL_IRP             (0x04)
 219 #define         FSRTL_MAX_TOP_LEVEL_IRP_FLAG            (0x04)
 220
 221 typedef struct _TOP_LEVEL_IRP
 222 {
 223         PIRP TopLevelIrp;
 224         ULONG TopLevelIrpConst;
 225 } TOP_LEVEL_IRP;
 226
 227 typedef struct
 228 {
 229    PACCESS_TOKEN Token;                              // 0x0
 230    UCHAR Unknown1;                                   // 0x4
 231    UCHAR Unknown2;                                   // 0x5
 232    UCHAR Pad[2];                                     // 0x6
 233    SECURITY_IMPERSONATION_LEVEL Level;               // 0x8
 234 } PS_IMPERSONATION_INFO, *PPS_IMPERSONATION_INFO;
 235
 236
 237 typedef struct _W32THREAD
 238 {
 239   PVOID MessageQueue;
 240 } __attribute__((packed)) W32THREAD, *PW32THREAD;
 241
 242
 243 typedef struct _ETHREAD
 244 {
 245   KTHREAD Tcb;                                      /* 000 */
 246   TIME CreateTime;                                  /* 1B0/1DC */
 247   union
 248   {
 249     TIME ExitTime;                                  /* 1B8/1E4 */
 250     LIST_ENTRY LpcReplyChain;                       /* 1B8/1E4 */
 251   } u1;
 252   NTSTATUS ExitStatus;                              /* 1C0/1EC */
 253   LIST_ENTRY PostBlockList;                         /* 1C4/1F0 */
 254   LIST_ENTRY TerminationPortList;                   /* 1CC/1F8 */
 255   KSPIN_LOCK ActiveTimerListLock;                   /* 1D4/200 */
 256   LIST_ENTRY ActiveTimerListHead;                   /* 1D8/204 */
 257   CLIENT_ID Cid;                                    /* 1E0/20C */
 258   KSEMAPHORE LpcReplySemaphore;                     /* 1E8/214 */
 259   PVOID LpcReplyMessage;                            /* 1FC/228 */
 260   PLARGE_INTEGER LpcReplyMessageId;                 /* 200/22C */
 261   ULONG PerformanceCounterLow;                      /* 204/230 */
 262   PPS_IMPERSONATION_INFO ImpersonationInfo;         /* 208/234 */
 263   LIST_ENTRY IrpList;                               /* 20C/238 */
 264   TOP_LEVEL_IRP* TopLevelIrp;                       /* 214/240 */
 265   PDEVICE_OBJECT DeviceToVerify;                    /* 218/244 */
 266   ULONG ReadClusterSize;                            /* 21C/248 */
 267   UCHAR ForwardClusterOnly;                         /* 220/24C */
 268   UCHAR DisablePageFaultClustering;                 /* 221/24D */
 269   UCHAR DeadThread;                                 /* 222/24E */
 270   UCHAR HasTerminated;                              /* 223/24F */
 271   PVOID EventPair;                                  /* 224/250 */
 272   ACCESS_MASK GrantedAccess;                        /* 228/254 */
 273   struct _EPROCESS* ThreadsProcess;                 /* 22C/258 */
 274   PKSTART_ROUTINE StartAddress;                     /* 230/25C */
 275   union
 276   {
 277     LPTHREAD_START_ROUTINE Win32StartAddress;       /* 234/260 */
 278     ULONG LpcReceiveMessageId;                      /* 234/260 */
 279   } u2;
 280   UCHAR LpcExitThreadCalled;                        /* 238/264 */
 281   UCHAR HardErrorsAreDisabled;                      /* 239/265 */
 282   UCHAR LpcReceivedMsgIdValid;                      /* 23A/266 */
 283   UCHAR ActiveImpersonationInfo;                    /* 23B/267 */
 284   ULONG PerformanceCountHigh;                       /* 23C/268 */
 285
 286   /*
 287    * Added by David Welch (welch@cwcom.net)
 288    */
 289   struct _EPROCESS* OldProcess;                     /* 240/26C */
 290
 291   PW32THREAD Win32Thread;
 292
 293 } __attribute__((packed)) ETHREAD, *PETHREAD;
 294
 295
 296 typedef struct _KPROCESS
 297 {
 298   /* So it's possible to wait for the process to terminate */
 299   DISPATCHER_HEADER     DispatcherHeader;             /* 000 */
 300   /*
 301    * Presumably a list of profile objects associated with this process,
 302    * currently unused.
 303    */
 304   LIST_ENTRY            ProfileListHead;              /* 010 */
 305   /*
 306    * We use the first member of this array to hold the physical address of
 307    * the page directory for this process.
 308    */
 309   PVOID                 DirectoryTableBase[2];        /* 018 */
 310   /*
 311    * Presumably a descriptor for the process's LDT, currently unused.
 312    */
 313   ULONG                 LdtDescriptor[2];             /* 020 */
 314   /*
 315    * Presumably for processing int 0x21 from V86 mode DOS, currently
 316    * unused.
 317    */
 318   ULONG                 Int21Descriptor[2];           /* 028 */
 319   /* Don't know. */
 320   USHORT                IopmOffset;                   /* 030 */
 321   /*
 322    * Presumably I/O privilege level to be used for this process, currently
 323    * unused.
 324    */
 325   UCHAR                 Iopl;                         /* 032 */
 326   /* Set if this process is a virtual dos machine? */
 327   UCHAR                 VdmFlag;                      /* 033 */
 328   /* Bitmask of the processors being used by this process's threads? */
 329   ULONG                 ActiveProcessors;             /* 034 */
 330   /* Aggregate of the time this process's threads have spent in kernel mode? */
 331   ULONG                 KernelTime;                   /* 038 */
 332   /* Aggregate of the time this process's threads have spent in user mode? */
 333   ULONG                 UserTime;                     /* 03C */
 334   /* List of this process's threads that are ready for execution? */
 335   LIST_ENTRY            ReadyListHead;                /* 040 */
 336   /* List of this process's threads that have their stacks swapped out? */
 337   LIST_ENTRY            SwapListEntry;                /* 048 */
 338   /* List of this process's threads? */
 339   LIST_ENTRY            ThreadListHead;               /* 050 */
 340   /* Maybe a lock for this data structure, the type is assumed. */
 341   KSPIN_LOCK            ProcessLock;                  /* 058 */
 342   /* Default affinity mask for this process's threads? */
 343   ULONG                 Affinity;                     /* 05C */
 344   /* Count of the stacks allocated for this process's threads? */
 345   USHORT                StackCount;                   /* 060 */
 346   /* Base priority for this process's threads? */
 347   KPRIORITY             BasePriority;                 /* 062 */
 348   /* Default quantum for this process's threads */
 349   UCHAR                 ThreadQuantum;                /* 063 */
 350   /* Unknown. */
 351   UCHAR                 AutoAlignment;                /* 064 */
 352   /* Process execution state, currently either active or terminated. */
 353   UCHAR                 State;                        /* 065 */
 354   /* Seed for generating thread ids for this process's threads? */
 355   UCHAR                 ThreadSeed;                   /* 066 */
 356   /* Disable priority boosts? */
 357   UCHAR                 DisableBoost;                 /* 067 */
 358 } KPROCESS, *PKPROCESS;
 359
 360
 361 typedef struct _W32PROCESS
 362 {
 363 } __attribute__((packed)) W32PROCESS, *PW32PROCESS;
 364
 365
 366 struct _EPROCESS
 367 {
 368   /* Microkernel specific process state. */
 369   KPROCESS              Pcb;                          /* 000 */
 370   /* Exit status of the process. */
 371   NTSTATUS              ExitStatus;                   /* 068 */
 372   /* Unknown. */
 373   KEVENT                LockEvent;                    /* 06C */
 374   /* Unknown. */
 375   ULONG                 LockCount;                    /* 07C */
 376   /* Time of process creation. */
 377   TIME                  CreateTime;                   /* 080 */
 378   /* Time of process exit. */
 379   TIME                  ExitTime;                     /* 088 */
 380   /* Unknown. */
 381   PVOID                 LockOwner;                    /* 090 */
 382   /* Process id. */
 383   ULONG                 UniqueProcessId;              /* 094 */
 384   /* Unknown. */
 385   LIST_ENTRY            ActiveProcessLinks;           /* 098 */
 386   /* Unknown. */
 387   ULONG                 QuotaPeakPoolUsage[2];        /* 0A0 */
 388   /* Unknown. */
 389   ULONG                 QuotaPoolUsage[2];            /* 0A8 */
 390   /* Unknown. */
 391   ULONG                 PagefileUsage;                /* 0B0 */
 392   /* Unknown. */
 393   ULONG                 CommitCharge;                 /* 0B4 */
 394   /* Unknown. */
 395   ULONG                 PeakPagefileUsage;            /* 0B8 */
 396   /* Unknown. */
 397   ULONG                 PeakVirtualSize;              /* 0BC */
 398   /* Unknown. */
 399   LARGE_INTEGER         VirtualSize;                  /* 0C0 */
 400   struct
 401   {
 402     ULONG               LastTrimTime;
 403     ULONG               LastTrimFaultCount;
 404     ULONG               PageFaultCount;
 405     ULONG               PeakWorkingSetSize;
 406     ULONG               WorkingSetSize;
 407     ULONG               MinimumWorkingSetSize;
 408     ULONG               MaximumWorkingSetSize;
 409     ULONG               VmWorkingSetList;
 410     LIST_ENTRY          WorkingSetExpansionList;
 411     UCHAR               AllowWorkingSetAdjustment;
 412     UCHAR               AddressSpaceBeingDeleted;
 413     UCHAR               ForegroundPrioritySwitch;
 414     UCHAR               MemoryPriority;
 415   } Vm;
 416   PVOID                 LastProtoPteFault;
 417   struct _EPORT*        DebugPort;
 418   struct _EPORT*        ExceptionPort;
 419   PVOID                 ObjectTable;
 420   PVOID                 Token;
 421   //  FAST_MUTEX            WorkingSetLock;
 422   KMUTEX                WorkingSetLock;
 423   PVOID                 WorkingSetPage;
 424   UCHAR                 ProcessOutswapEnabled;
 425   UCHAR                 ProcessOutswapped;
 426   UCHAR                 AddressSpaceInitialized;
 427   UCHAR                 AddressSpaceDeleted;
 428   FAST_MUTEX            AddressCreationLock;
 429   KSPIN_LOCK            HyperSpaceLock;
 430   PETHREAD              ForkInProgress;
 431   USHORT                VmOperation;
 432   UCHAR                 ForkWasSuccessful;
 433   UCHAR                 MmAgressiveWsTrimMask;
 434   PKEVENT               VmOperationEvent;
 435   PVOID                 PageDirectoryPte;
 436   ULONG                 LastFaultCount;
 437   PVOID                 VadRoot;
 438   PVOID                 VadHint;
 439   PVOID                 CloneRoot;
 440   ULONG                 NumberOfPrivatePages;
 441   ULONG                 NumberOfLockedPages;
 442   USHORT                NextProcessColour;
 443   UCHAR                 ExitProcessCalled;
 444   UCHAR                 CreateProcessReported;
 445   HANDLE                SectionHandle;
 446   PPEB                  Peb;
 447   PVOID                 SectionBaseAddress;
 448   PVOID                 QuotaBlock;
 449   NTSTATUS              LastThreadExitStatus;
 450   PVOID                 WorkingSetWatch;
 451   HANDLE                InheritedFromUniqueProcessId;
 452   ACCESS_MASK           GrantedAccess;
 453   ULONG                 DefaultHardErrorProcessing;
 454   PVOID                 LdtInformation;
 455   ULONG                 VadFreeHint;
 456   PVOID                 VdmObjects;
 457   KMUTANT               ProcessMutant;
 458   CHAR                  ImageFileName[16];
 459   ULONG                 VmTrimFaultValue;
 460   UCHAR                 SetTimerResolution;
 461   UCHAR                 PriorityClass;
 462   UCHAR                 SubSystemMinorVersion;
 463   UCHAR                 SubSystemMajorVersion;
 464   USHORT                SubSystemVersion;
 465   PW32PROCESS           Win32Process;
 466   HANDLE                Win32WindowStation;
 467
 468    /*
 469     * Added by David Welch (welch@mcmail.com)
 470     */
 471    MADDRESS_SPACE       AddressSpace;
 472    HANDLE_TABLE         HandleTable;
 473    LIST_ENTRY           ProcessListEntry;
 474
 475    /*
 476     * Added by Philip Susi for list of threads in process
 477     */
 478    LIST_ENTRY           ThreadListHead;
 479 };
 480
 481 #define PROCESS_STATE_TERMINATED (1)
 482 #define PROCESS_STATE_ACTIVE     (2)
 483
 484 VOID PiInitDefaultLocale(VOID);
 485 VOID PiInitProcessManager(VOID);
 486 VOID PiShutdownProcessManager(VOID);
 487 VOID PsInitThreadManagment(VOID);
 488 VOID PsInitProcessManagment(VOID);
 489 VOID PsInitIdleThread(VOID);
 490 VOID PsDispatchThreadNoLock(ULONG NewThreadStatus);
 491 VOID PiTerminateProcessThreads(PEPROCESS Process, NTSTATUS ExitStatus);
 492 VOID PsTerminateOtherThread(PETHREAD Thread, NTSTATUS ExitStatus);
 493 VOID PsReleaseThread(PETHREAD Thread);
 494 VOID PsBeginThread(PKSTART_ROUTINE StartRoutine, PVOID StartContext);
 495 VOID PsBeginThreadWithContextInternal(VOID);
 496 VOID PiKillMostProcesses(VOID);
 497 NTSTATUS STDCALL PiTerminateProcess(PEPROCESS Process, NTSTATUS ExitStatus);
 498 ULONG PsUnfreezeThread(PETHREAD Thread, PNTSTATUS WaitStatus);
 499 ULONG PsFreezeThread(PETHREAD Thread, PNTSTATUS WaitStatus,
 500                      UCHAR Alertable, ULONG WaitMode);
 501 VOID PiInitApcManagement(VOID);
 502 VOID PiDeleteThread(PVOID ObjectBody);
 503 VOID PiCloseThread(PVOID ObjectBody, ULONG HandleCount);
 504 VOID PsReapThreads(VOID);
 505 NTSTATUS
 506 PsInitializeThread(HANDLE ProcessHandle,
 507                    PETHREAD* ThreadPtr,
 508                    PHANDLE ThreadHandle,
 509                    ACCESS_MASK DesiredAccess,
 510                    POBJECT_ATTRIBUTES ObjectAttributes,
 511                    BOOLEAN First);
 512
 513 PACCESS_TOKEN PsReferenceEffectiveToken(PETHREAD Thread,
 514                                         PTOKEN_TYPE TokenType,
 515                                         PUCHAR b,
 516                                         PSECURITY_IMPERSONATION_LEVEL Level);
 517
 518 NTSTATUS PsOpenTokenOfProcess(HANDLE ProcessHandle,
 519                               PACCESS_TOKEN* Token);
 520
 521 NTSTATUS PsSuspendThread(PETHREAD Thread, PULONG PreviousCount);
 522 NTSTATUS PsResumeThread(PETHREAD Thread, PULONG PreviousCount);
 523
 524
 525 #define THREAD_STATE_INVALID      (0)
 526 #define THREAD_STATE_RUNNABLE     (1)
 527 #define THREAD_STATE_RUNNING      (2)
 528 #define THREAD_STATE_SUSPENDED    (3)
 529 #define THREAD_STATE_FROZEN       (4)
 530 #define THREAD_STATE_TERMINATED_1 (5)
 531 #define THREAD_STATE_TERMINATED_2 (6)
 532 #define THREAD_STATE_BLOCKED      (7)
 533 #define THREAD_STATE_MAX          (8)
 534
 535
 536 /*
 537  * Internal thread priorities, added by Phillip Susi
 538  * TODO: rebalence these to make use of all priorities... the ones above 16 can not all be used right now
 539  */
 540
 541 #define PROCESS_PRIO_IDLE                       3
 542 #define PROCESS_PRIO_NORMAL                     8
 543 #define PROCESS_PRIO_HIGH                       13
 544 #define PROCESS_PRIO_RT                         18
 545
 546
 547 VOID
 548 KeInitializeThread(PKPROCESS Process, PKTHREAD Thread, BOOLEAN First);
 549
 550 VOID HalInitFirstTask(PETHREAD thread);
 551 NTSTATUS
 552 Ke386InitThread(PKTHREAD thread, PKSTART_ROUTINE fn, PVOID StartContext);
 553 VOID HalTaskSwitch(PKTHREAD thread);
 554 NTSTATUS
 555 Ke386InitThreadWithContext(PKTHREAD Thread, PCONTEXT Context);
 556 NTSTATUS HalReleaseTask(PETHREAD Thread);
 557 VOID PiDeleteProcess(PVOID ObjectBody);
 558 VOID PsReapThreads(VOID);
 559 VOID PsUnfreezeOtherThread(PETHREAD Thread);
 560 VOID PsFreezeOtherThread(PETHREAD Thread);
 561 VOID PsFreezeProcessThreads(PEPROCESS Process);
 562 VOID PsUnfreezeProcessThreads(PEPROCESS Process);
 563 PEPROCESS PsGetNextProcess(PEPROCESS OldProcess);
 564 VOID
 565 Ki386ContextSwitch(PKTHREAD NewThread, PKTHREAD OldThread);
 566 VOID
 567 PsBlockThread(PNTSTATUS Status, UCHAR Alertable, ULONG WaitMode,
 568               BOOLEAN DispatcherLock, KIRQL WaitIrql);
 569 VOID
 570 PsUnblockThread(PETHREAD Thread, PNTSTATUS WaitStatus);
 571 VOID
 572 PsApplicationProcessorInit(VOID);
 573 VOID
 574 PsPrepareForApplicationProcessorInit(ULONG Id);
 575 NTSTATUS
 576 PsIdleThreadMain(PVOID Context);
 577
 578 #endif /* ASSEMBLER */
 579
 580 #endif /* __INCLUDE_INTERNAL_PS_H */