reactos/ntoskrnl/ke/kthread.c

   1 /*
   2  *  ReactOS kernel
   3  *  Copyright (C) 2000  ReactOS Team
   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:         Microkernel thread support
  22  * PROGRAMMER:      David Welch (welch@cwcom.net)
  23  * UPDATE HISTORY:
  24  *                  Created 22/05/98
  25  */
  26
  27 /* INCLUDES *****************************************************************/
  28
  29 #include <ddk/ntddk.h>
  30 #include <internal/ke.h>
  31 #include <internal/ps.h>
  32 #include <internal/id.h>
  33 #include <internal/pool.h>
  34
  35 #define NDEBUG
  36 #include <internal/debug.h>
  37
  38 /* EXTERN ********************************************************************/
  39
  40 //extern VOID
  41 //PiTimeoutThread(struct _KDPC Dpc, PVOID Context, PVOID Arg1, PVOID Arg2);
  42
  43 /* FUNCTIONS *****************************************************************/
  44
  45 VOID
  46 KeFreeStackPage(PVOID Context, MEMORY_AREA* MemoryArea, PVOID Address, ULONG PhysAddr,
  47                 SWAPENTRY SwapEntry, BOOLEAN Dirty)
  48 {
  49   assert(SwapEntry == 0);
  50   if (PhysAddr != 0)
  51     {
  52       MmDereferencePage((PVOID)PhysAddr);
  53     }
  54 }
  55
  56 NTSTATUS
  57 HalReleaseTask(PETHREAD Thread)
  58 /*
  59  * FUNCTION: Releases the resource allocated for a thread by
  60  * HalInitTaskWithContext or HalInitTask
  61  * NOTE: The thread had better not be running when this is called
  62  */
  63 {
  64   extern unsigned int init_stack;
  65
  66   if (Thread->Tcb.StackLimit != (ULONG)&init_stack)
  67     {
  68       MmFreeMemoryArea(MmGetKernelAddressSpace(),
  69                        (PVOID)Thread->Tcb.StackLimit,
  70                        MM_STACK_SIZE,
  71                        KeFreeStackPage,
  72                        NULL);
  73     }
  74   Thread->Tcb.StackLimit = 0;
  75   Thread->Tcb.InitialStack = NULL;
  76   Thread->Tcb.StackBase = NULL;
  77   Thread->Tcb.KernelStack = NULL;
  78   return(STATUS_SUCCESS);
  79 }
  80
  81 VOID
  82 KeInitializeThread(PKPROCESS Process, PKTHREAD Thread, BOOLEAN First)
  83 /*
  84  * FUNCTION: Initialize the microkernel state of the thread
  85  */
  86 {
  87   PVOID KernelStack;
  88   NTSTATUS Status;
  89   extern unsigned int init_stack_top;
  90   extern unsigned int init_stack;
  91   PMEMORY_AREA StackArea;
  92   ULONG i;
  93
  94   KeInitializeDispatcherHeader(&Thread->DispatcherHeader,
  95                                InternalThreadType,
  96                                sizeof(ETHREAD),
  97                                FALSE);
  98   InitializeListHead(&Thread->MutantListHead);
  99   if (!First)
 100     {
 101       KernelStack = NULL;
 102
 103       MmLockAddressSpace(MmGetKernelAddressSpace());
 104       Status = MmCreateMemoryArea(NULL,
 105                                   MmGetKernelAddressSpace(),
 106                                   MEMORY_AREA_KERNEL_STACK,
 107                                   &KernelStack,
 108                                   MM_STACK_SIZE,
 109                                   0,
 110                                   &StackArea,
 111                                   FALSE);
 112       MmUnlockAddressSpace(MmGetKernelAddressSpace());
 113
 114       if (!NT_SUCCESS(Status))
 115         {
 116           DPRINT1("Failed to create thread stack\n");
 117           KeBugCheck(0);
 118         }
 119       for (i = 0; i < (MM_STACK_SIZE / PAGESIZE); i++)
 120         {
 121           PVOID Page;
 122           Status = MmRequestPageMemoryConsumer(MC_NPPOOL, TRUE, &Page);
 123           if (!NT_SUCCESS(Status))
 124             {
 125               KeBugCheck(0);
 126             }
 127           Status = MmCreateVirtualMapping(NULL,
 128                                           KernelStack + (i * PAGESIZE),
 129                                           PAGE_EXECUTE_READWRITE,
 130                                           (ULONG)Page);
 131         }
 132       Thread->InitialStack = KernelStack + MM_STACK_SIZE;
 133       Thread->StackBase = KernelStack + MM_STACK_SIZE;
 134       Thread->StackLimit = (ULONG)KernelStack;
 135       Thread->KernelStack = KernelStack + MM_STACK_SIZE;
 136     }
 137   else
 138     {
 139       Thread->InitialStack = (PVOID)&init_stack_top;
 140       Thread->StackBase = (PVOID)&init_stack_top;
 141       Thread->StackLimit = (ULONG)&init_stack;
 142       Thread->KernelStack = (PVOID)&init_stack_top;
 143     }
 144
 145   /*
 146    * The Native API function will initialize the TEB field later
 147    */
 148   Thread->Teb = NULL;
 149   Thread->TlsArray = NULL;
 150   Thread->DebugActive = 0;
 151   Thread->State = THREAD_STATE_BLOCKED;
 152   Thread->Alerted[0] = 0;
 153   Thread->Alerted[1] = 0;
 154   Thread->Iopl = 0;
 155   /*
 156    * FIXME: Think how this might work
 157    */
 158   Thread->NpxState = 0;
 159
 160   Thread->Saturation = 0;
 161   Thread->Priority = 0;
 162   InitializeListHead(&Thread->ApcState.ApcListHead[0]);
 163   InitializeListHead(&Thread->ApcState.ApcListHead[1]);
 164   Thread->ApcState.Process = Process;
 165   Thread->ApcState.KernelApcInProgress = 0;
 166   Thread->ApcState.KernelApcPending = 0;
 167   Thread->ApcState.UserApcPending = 0;
 168   Thread->ContextSwitches = 0;
 169   Thread->WaitStatus = STATUS_SUCCESS;
 170   Thread->WaitIrql = 0;
 171   Thread->WaitMode = 0;
 172   Thread->WaitNext = 0;
 173   Thread->WaitBlockList = NULL;
 174   Thread->WaitListEntry.Flink = NULL;
 175   Thread->WaitListEntry.Blink = NULL;
 176   Thread->WaitTime = 0;
 177   Thread->BasePriority = 0;
 178   Thread->DecrementCount = 0;
 179   Thread->PriorityDecrement = 0;
 180   Thread->Quantum = 0;
 181   memset(Thread->WaitBlock, 0, sizeof(KWAIT_BLOCK)*4);
 182   Thread->LegoData = 0;
 183   /*
 184    * FIXME: Why this?
 185    */
 186   Thread->KernelApcDisable = 1;
 187   Thread->UserAffinity = Process->Affinity;
 188   Thread->SystemAffinityActive = 0;
 189   Thread->Queue = NULL;
 190   KeInitializeSpinLock(&Thread->ApcQueueLock);
 191   memset(&Thread->Timer, 0, sizeof(KTIMER));
 192   Thread->QueueListEntry.Flink = NULL;
 193   Thread->QueueListEntry.Blink = NULL;
 194   Thread->Affinity = Process->Affinity;
 195   Thread->Preempted = 0;
 196   Thread->ProcessReadyQueue = 0;
 197   Thread->KernelStackResident = 1;
 198   Thread->NextProcessor = 0;
 199   Thread->CallbackStack = NULL;
 200   Thread->Win32Thread = 0;
 201   Thread->TrapFrame = NULL;
 202   Thread->ApcStatePointer[0] = NULL;
 203   Thread->ApcStatePointer[1] = NULL;
 204   Thread->EnableStackSwap = 0;
 205   Thread->LargeStack = 0;
 206   Thread->ResourceIndex = 0;
 207   Thread->PreviousMode = KernelMode;
 208   Thread->KernelTime = 0;
 209   Thread->UserTime = 0;
 210   memset(&Thread->SavedApcState, 0, sizeof(KAPC_STATE));
 211   Thread->Alertable = 1;
 212   Thread->ApcStateIndex = 0;
 213   Thread->ApcQueueable = 0;
 214   Thread->AutoAlignment = 0;
 215   KeInitializeApc(&Thread->SuspendApc,
 216                   Thread,
 217                   0,
 218                   PiSuspendThreadKernelRoutine,
 219                   PiSuspendThreadRundownRoutine,
 220                   PiSuspendThreadNormalRoutine,
 221                   KernelMode,
 222                   NULL);
 223   KeInitializeSemaphore(&Thread->SuspendSemaphore, 0, 255);
 224   Thread->ThreadListEntry.Flink = NULL;
 225   Thread->ThreadListEntry.Blink = NULL;
 226   Thread->FreezeCount = 0;
 227   Thread->SuspendCount = 0;
 228
 229   /*
 230    * Initialize ReactOS specific members
 231    */
 232    Thread->ProcessThreadListEntry.Flink = NULL;
 233    Thread->ProcessThreadListEntry.Blink = NULL;
 234    KeInitializeDpc(&Thread->TimerDpc,
 235                    (PKDEFERRED_ROUTINE)PiTimeoutThread,
 236                    Thread);
 237    Thread->LastEip = 0;
 238
 239    /*
 240     * Do x86 specific part
 241     */
 242 }
 243