src/vm/threads.inl

   1 // Licensed to the .NET Foundation under one or more agreements.
   2 // The .NET Foundation licenses this file to you under the MIT license.
   3 // See the LICENSE file in the project root for more information.
   4 //
   5
   6
   7 //
   8 //
   9 /*============================================================
  10 **
  11 ** Header:  Threads.inl
  12 **
  13 ** Purpose: Implements Thread inline functions
  14 **
  15 **
  16 ===========================================================*/
  17 #ifndef _THREADS_INL
  18 #define _THREADS_INL
  19
  20 #include "threads.h"
  21 #include "appdomain.hpp"
  22 #include "frames.h"
  23
  24 #ifndef DACCESS_COMPILE
  25
  26 #ifndef __GNUC__
  27 EXTERN_C __declspec(thread) ThreadLocalInfo gCurrentThreadInfo;
  28 #else // !__GNUC__
  29 EXTERN_C __thread ThreadLocalInfo gCurrentThreadInfo;
  30 #endif // !__GNUC__
  31
  32 EXTERN_C inline Thread* STDCALL GetThread()
  33 {
  34     return gCurrentThreadInfo.m_pThread;
  35 }
  36
  37 EXTERN_C inline AppDomain* STDCALL GetAppDomain()
  38 {
  39     return AppDomain::GetCurrentDomain();
  40 }
  41
  42 #endif // !DACCESS_COMPILE
  43
  44 inline void Thread::IncLockCount()
  45 {
  46     LIMITED_METHOD_CONTRACT;
  47     _ASSERTE(GetThread() == this);
  48     m_dwLockCount++;
  49     _ASSERTE(m_dwLockCount != 0 || HasThreadStateNC(TSNC_UnbalancedLocks));
  50 }
  51
  52 inline void Thread::DecLockCount()
  53 {
  54     LIMITED_METHOD_CONTRACT;
  55     _ASSERTE(GetThread() == this);
  56     _ASSERTE(m_dwLockCount > 0 || HasThreadStateNC(TSNC_UnbalancedLocks));
  57     m_dwLockCount--;
  58 }
  59
  60 inline
  61 Frame* Thread::FindFrame(SIZE_T StackPointer)
  62 {
  63     Frame* pFrame = GetFrame();
  64
  65     while ((SIZE_T)pFrame < StackPointer)
  66     {
  67         pFrame = pFrame->Next();
  68     }
  69
  70     return pFrame;
  71 }
  72
  73 inline void Thread::SetThrowable(OBJECTREF pThrowable DEBUG_ARG(ThreadExceptionState::SetThrowableErrorChecking stecFlags))
  74 {
  75     WRAPPER_NO_CONTRACT;
  76
  77     m_ExceptionState.SetThrowable(pThrowable DEBUG_ARG(stecFlags));
  78 }
  79
  80 // get the current notification (if any) from this thread
  81 inline OBJECTHANDLE Thread::GetThreadCurrNotification()
  82 {
  83     CONTRACTL
  84     {
  85         NOTHROW;
  86         GC_NOTRIGGER;
  87         SUPPORTS_DAC;
  88     }
  89     CONTRACTL_END;
  90
  91     return m_hCurrNotification;
  92 }
  93
  94 // set the current notification (if any) from this thread
  95 inline void Thread::SetThreadCurrNotification(OBJECTHANDLE handle)
  96 {
  97     CONTRACTL
  98     {
  99         NOTHROW;
 100         GC_NOTRIGGER;
 101     }
 102     CONTRACTL_END;
 103
 104     m_hCurrNotification = handle;
 105 }
 106
 107 // clear the current notification (if any) from this thread
 108 inline void Thread::ClearThreadCurrNotification()
 109 {
 110     CONTRACTL
 111     {
 112         NOTHROW;
 113         GC_NOTRIGGER;
 114     }
 115     CONTRACTL_END;
 116
 117     m_hCurrNotification = NULL;
 118 }
 119
 120
 121 inline OBJECTREF Thread::GetExposedObjectRaw()
 122 {
 123     CONTRACTL {
 124         NOTHROW;
 125         GC_NOTRIGGER;
 126         SUPPORTS_DAC;
 127     }
 128     CONTRACTL_END;
 129
 130     return ObjectFromHandle(m_ExposedObject);
 131 }
 132
 133 inline void Thread::FinishSOWork()
 134 {
 135     WRAPPER_NO_CONTRACT;
 136     _ASSERTE(!HasThreadStateNC(TSNC_SOWorkNeeded));
 137 }
 138
 139 #ifdef FEATURE_COMINTEROP
 140 inline void Thread::RevokeApartmentSpy()
 141 {
 142     LIMITED_METHOD_CONTRACT;
 143
 144     if (m_fInitializeSpyRegistered)
 145     {
 146         VERIFY(SUCCEEDED(CoRevokeInitializeSpy(m_uliInitializeSpyCookie)));
 147         m_fInitializeSpyRegistered = false;
 148     }
 149 }
 150
 151 inline LPVOID Thread::GetLastSTACtxCookie(BOOL *pfNAContext)
 152 {
 153     LIMITED_METHOD_CONTRACT;
 154     *pfNAContext = ((UINT_PTR)m_pLastSTACtxCookie & 1);
 155     return (LPVOID)((UINT_PTR)m_pLastSTACtxCookie & ~1);
 156 }
 157
 158 inline void Thread::SetLastSTACtxCookie(LPVOID pCtxCookie, BOOL fNAContext)
 159 {
 160     LIMITED_METHOD_CONTRACT;
 161     if (fNAContext)
 162     {
 163         // The ctx cookie is an interface pointer so we can steal the lowest bit
 164         // to mark whether the context is known to be Neutral Apartment or not.
 165         m_pLastSTACtxCookie = (LPVOID)((UINT_PTR)pCtxCookie | 1);
 166     }
 167     else
 168     {
 169         m_pLastSTACtxCookie = pCtxCookie;
 170     }
 171 }
 172 #endif // FEATURE_COMINTEROP
 173
 174 inline bool Thread::IsGCSpecial()
 175 {
 176     LIMITED_METHOD_CONTRACT;
 177     return m_fGCSpecial;
 178 }
 179
 180 inline void Thread::SetGCSpecial(bool fGCSpecial)
 181 {
 182     LIMITED_METHOD_CONTRACT;
 183     m_fGCSpecial = fGCSpecial;
 184 }
 185
 186 #if !defined(DACCESS_COMPILE) && !defined(CROSSGEN_COMPILE)
 187
 188 inline Thread::CurrentPrepareCodeConfigHolder::CurrentPrepareCodeConfigHolder(Thread *thread, PrepareCodeConfig *config)
 189     : m_thread(thread)
 190 #ifdef _DEBUG
 191     , m_config(config)
 192 #endif
 193 {
 194     LIMITED_METHOD_CONTRACT;
 195     _ASSERTE(thread != nullptr);
 196     _ASSERTE(thread == GetThread());
 197     _ASSERTE(config != nullptr);
 198
 199     PrepareCodeConfig *previousConfig = thread->m_currentPrepareCodeConfig;
 200     if (previousConfig != nullptr)
 201     {
 202         config->SetNextInSameThread(previousConfig);
 203     }
 204     thread->m_currentPrepareCodeConfig = config;
 205 }
 206
 207 inline Thread::CurrentPrepareCodeConfigHolder::~CurrentPrepareCodeConfigHolder()
 208 {
 209     LIMITED_METHOD_CONTRACT;
 210
 211     PrepareCodeConfig *config = m_thread->m_currentPrepareCodeConfig;
 212     _ASSERTE(config == m_config);
 213     m_thread->m_currentPrepareCodeConfig = config->GetNextInSameThread();
 214     config->SetNextInSameThread(nullptr);
 215 }
 216
 217 #endif // !DACCESS_COMPILE && !CROSSGEN_COMPILE
 218
 219 #endif