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CThread Class Referenceabstract

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CThread –. More...

#include <corelib/ncbithr.hpp>

+ Inheritance diagram for CThread:
+ Collaboration diagram for CThread:

Public Types

enum  ERunMode {
  fRunDefault = 0x00 , fRunDetached = 0x01 , fRunBound = 0x10 , fRunUnbound = 0x20 ,
  fRunNice = 0x40 , fRunAllowST = 0x100 , fRunCloneRequestContext = 0x200
}
 Which mode should the thread run in. More...
 
typedef int TRunMode
 Bitwise OR'd flags for thread creation passed to Run(). More...
 
typedef unsigned int TID
 Get ID of current thread. More...
 
- Public Types inherited from CObject
enum  EAllocFillMode { eAllocFillNone = 1 , eAllocFillZero , eAllocFillPattern }
 Control filling of newly allocated memory. More...
 
typedef CObjectCounterLocker TLockerType
 Default locker type for CRef. More...
 
typedef atomic< Uint8TCounter
 Counter type is CAtomiCounter. More...
 
typedef Uint8 TCount
 Alias for value type of counter. More...
 

Public Member Functions

 CThread (void)
 Constructor. More...
 
bool Run (TRunMode flags=fRunDefault)
 Run the thread. More...
 
void Detach (void)
 Inform the thread that user does not need to wait for its termination. More...
 
void Join (void **exit_data=0)
 Wait for the thread termination. More...
 
bool Discard (void)
 If the thread has not been Run() yet, then schedule the thread object for destruction, and return TRUE. More...
 
bool IsTerminated (void) const
 Check if the thread has been terminated. More...
 
- Public Member Functions inherited from CObject
 CObject (void)
 Constructor. More...
 
 CObject (const CObject &src)
 Copy constructor. More...
 
virtual ~CObject (void)
 Destructor. More...
 
CObjectoperator= (const CObject &src) THROWS_NONE
 Assignment operator. More...
 
bool CanBeDeleted (void) const THROWS_NONE
 Check if object can be deleted. More...
 
bool IsAllocatedInPool (void) const THROWS_NONE
 Check if object is allocated in memory pool (not system heap) More...
 
bool Referenced (void) const THROWS_NONE
 Check if object is referenced. More...
 
bool ReferencedOnlyOnce (void) const THROWS_NONE
 Check if object is referenced only once. More...
 
void AddReference (void) const
 Add reference to object. More...
 
void RemoveReference (void) const
 Remove reference to object. More...
 
void ReleaseReference (void) const
 Remove reference without deleting object. More...
 
virtual void DoNotDeleteThisObject (void)
 Mark this object as not allocated in heap – do not delete this object. More...
 
virtual void DoDeleteThisObject (void)
 Mark this object as allocated in heap – object can be deleted. More...
 
void * operator new (size_t size)
 Define new operator for memory allocation. More...
 
void * operator new[] (size_t size)
 Define new[] operator for 'array' memory allocation. More...
 
void operator delete (void *ptr)
 Define delete operator for memory deallocation. More...
 
void operator delete[] (void *ptr)
 Define delete[] operator for memory deallocation. More...
 
void * operator new (size_t size, void *place)
 Define new operator. More...
 
void operator delete (void *ptr, void *place)
 Define delete operator. More...
 
void * operator new (size_t size, CObjectMemoryPool *place)
 Define new operator using memory pool. More...
 
void operator delete (void *ptr, CObjectMemoryPool *place)
 Define delete operator. More...
 
virtual void DebugDump (CDebugDumpContext ddc, unsigned int depth) const
 Define method for dumping debug information. More...
 
- Public Member Functions inherited from CDebugDumpable
 CDebugDumpable (void)
 
virtual ~CDebugDumpable (void)
 
void DebugDumpText (ostream &out, const string &bundle, unsigned int depth) const
 
void DebugDumpFormat (CDebugDumpFormatter &ddf, const string &bundle, unsigned int depth) const
 
void DumpToConsole (void) const
 

Static Public Member Functions

static void Exit (void *exit_data)
 Cancel current thread. More...
 
static TID GetSelf (void)
 
static bool IsMain (void)
 
static CThreadGetCurrentThread (void)
 Get current CThread object (or NULL, if main thread) More...
 
static void GetSystemID (TThreadSystemID *id)
 Get system ID of the current thread - for internal use only. More...
 
static unsigned int GetThreadsCount ()
 Get total amount of threads This amount does not contain main thread. More...
 
static void SetCurrentThreadName (const CTempString &)
 Set name for the current thread. More...
 
static void InitializeMainThreadId (void)
 Initialize main thread's TID. More...
 
static bool IsAppExiting (void)
 Check if the application is exiting (entered the destructor). More...
 
static void SetWaitForAllThreadsTimeout (const CTimeout &timeout)
 Set timeout for stopping all threads on application exit. More...
 
- Static Public Member Functions inherited from CObject
static NCBI_XNCBI_EXPORT void ThrowNullPointerException (void)
 Define method to throw null pointer exception. More...
 
static NCBI_XNCBI_EXPORT void ThrowNullPointerException (const type_info &type)
 
static EAllocFillMode GetAllocFillMode (void)
 
static void SetAllocFillMode (EAllocFillMode mode)
 
static void SetAllocFillMode (const string &value)
 Set mode from configuration parameter value. More...
 
- Static Public Member Functions inherited from CDebugDumpable
static void EnableDebugDump (bool on)
 

Protected Member Functions

virtual void * Main (void)=0
 Derived (user-created) class must provide a real thread function. More...
 
virtual void OnExit (void)
 Override this to execute finalization code. More...
 
virtual ~CThread (void)
 To be called only internally! NOTE: destructor of the derived (user-provided) class should be declared "protected", too! More...
 
TThreadHandle GetThreadHandle ()
 
- Protected Member Functions inherited from CObject
virtual void DeleteThis (void)
 Virtual method "deleting" this object. More...
 

Private Member Functions

void x_InitializeThreadId (void)
 initalize new thread id, must be called from Wrapper(). More...
 
 CThread (const CThread &)
 Prohibit copying and assigning. More...
 
CThreadoperator= (const CThread &)
 

Static Private Member Functions

static TWrapperRes Wrapper (TWrapperArg arg)
 Function to use (internally) as the thread's startup function. More...
 
static bool WaitForAllThreads (void)
 

Private Attributes

TThreadHandle m_Handle
 platform-dependent thread handle More...
 
bool m_IsRun
 if Run() was called for the thread More...
 
bool m_IsDetached
 if the thread is detached More...
 
bool m_IsJoined
 if Join() was called for the thread More...
 
bool m_IsTerminated
 if Exit() was called for the thread More...
 
CRef< CThreadm_SelfRef
 "this" – to avoid premature destruction More...
 
void * m_ExitData
 as returned by Main() or passed to Exit() More...
 
CRef< CRequestContextm_ParentRequestContext
 

Static Private Attributes

static bool sm_IsExiting = false
 
static CTimeout sm_WaitForThreadsTimeout = CTimeout(0.1)
 
static atomic< unsigned intsm_ThreadsCount
 Total amount of threads. More...
 

Friends

class CRef< CThread >
 
class CTlsBase
 
class CNcbiApplicationAPI
 
TWrapperRes ThreadWrapperCaller (TWrapperArg arg)
 

Additional Inherited Members

- Static Public Attributes inherited from CObject
static const TCount eCounterBitsCanBeDeleted = 1 << 0
 Define possible object states. More...
 
static const TCount eCounterBitsInPlainHeap = 1 << 1
 Heap signature was found. More...
 
static const TCount eCounterBitsPlaceMask
 Mask for 'in heap' state flags. More...
 
static const int eCounterStep = 1 << 2
 Skip over the "in heap" bits. More...
 
static const TCount eCounterValid = TCount(1) << (sizeof(TCount) * 8 - 2)
 Minimal value for valid objects (reference counter is zero) Must be a single bit value. More...
 
static const TCount eCounterStateMask
 Valid object, and object in heap. More...
 

Detailed Description

CThread –.

Thread wrapper class.

Base class for user-defined threads. Creates the new thread, then calls user-provided Main() function. The thread then can be detached or joined. In any case, explicit destruction of the thread is prohibited.

Definition at line 527 of file ncbithr.hpp.


The documentation for this class was generated from the following files:
Modified on Mon May 27 04:37:34 2024 by modify_doxy.py rev. 669887