class TCondition: public TObject


TCondition

This class implements a condition variable. Use a condition variable
to signal threads. The actual work is done via the TConditionImp
class (either TPosixCondition or TWin32Condition).

Function Members (Methods)

public:
TCondition(TMutex* m = 0)
virtual~TCondition()
voidTObject::AbstractMethod(const char* method) const
virtual voidTObject::AppendPad(Option_t* option = "")
Int_tBroadcast()
virtual voidTObject::Browse(TBrowser* b)
static TClass*Class()
virtual const char*TObject::ClassName() const
virtual voidTObject::Clear(Option_t* = "")
virtual TObject*TObject::Clone(const char* newname = "") const
virtual Int_tTObject::Compare(const TObject* obj) const
virtual voidTObject::Copy(TObject& object) const
virtual voidTObject::Delete(Option_t* option = "")
virtual Int_tTObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual voidTObject::Draw(Option_t* option = "")
virtual voidTObject::DrawClass() const
virtual TObject*TObject::DrawClone(Option_t* option = "") const
virtual voidTObject::Dump() const
virtual voidTObject::Error(const char* method, const char* msgfmt) const
virtual voidTObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual voidTObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual voidTObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual voidTObject::Fatal(const char* method, const char* msgfmt) const
virtual TObject*TObject::FindObject(const char* name) const
virtual TObject*TObject::FindObject(const TObject* obj) const
virtual Option_t*TObject::GetDrawOption() const
static Long_tTObject::GetDtorOnly()
virtual const char*TObject::GetIconName() const
TMutex*GetMutex() const
virtual const char*TObject::GetName() const
virtual char*TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_tTObject::GetObjectStat()
virtual Option_t*TObject::GetOption() const
virtual const char*TObject::GetTitle() const
virtual UInt_tTObject::GetUniqueID() const
virtual Bool_tTObject::HandleTimer(TTimer* timer)
virtual ULong_tTObject::Hash() const
virtual voidTObject::Info(const char* method, const char* msgfmt) const
virtual Bool_tTObject::InheritsFrom(const char* classname) const
virtual Bool_tTObject::InheritsFrom(const TClass* cl) const
virtual voidTObject::Inspect() const
voidTObject::InvertBit(UInt_t f)
virtual TClass*IsA() const
virtual Bool_tTObject::IsEqual(const TObject* obj) const
virtual Bool_tTObject::IsFolder() const
Bool_tTObject::IsOnHeap() const
virtual Bool_tTObject::IsSortable() const
Bool_tTObject::IsZombie() const
virtual voidTObject::ls(Option_t* option = "") const
voidTObject::MayNotUse(const char* method) const
virtual Bool_tTObject::Notify()
static voidTObject::operator delete(void* ptr)
static voidTObject::operator delete(void* ptr, void* vp)
static voidTObject::operator delete[](void* ptr)
static voidTObject::operator delete[](void* ptr, void* vp)
void*TObject::operator new(size_t sz)
void*TObject::operator new(size_t sz, void* vp)
void*TObject::operator new[](size_t sz)
void*TObject::operator new[](size_t sz, void* vp)
virtual voidTObject::Paint(Option_t* option = "")
virtual voidTObject::Pop()
virtual voidTObject::Print(Option_t* option = "") const
virtual Int_tTObject::Read(const char* name)
virtual voidTObject::RecursiveRemove(TObject* obj)
voidTObject::ResetBit(UInt_t f)
virtual voidTObject::SaveAs(const char* filename = "", Option_t* option = "") const
virtual voidTObject::SavePrimitive(basic_ostream<char,char_traits<char> >& out, Option_t* option = "")
voidTObject::SetBit(UInt_t f)
voidTObject::SetBit(UInt_t f, Bool_t set)
virtual voidTObject::SetDrawOption(Option_t* option = "")
static voidTObject::SetDtorOnly(void* obj)
static voidTObject::SetObjectStat(Bool_t stat)
virtual voidTObject::SetUniqueID(UInt_t uid)
virtual voidShowMembers(TMemberInspector& insp, char* parent)
Int_tSignal()
virtual voidStreamer(TBuffer& b)
voidStreamerNVirtual(TBuffer& b)
virtual voidTObject::SysError(const char* method, const char* msgfmt) const
Bool_tTObject::TestBit(UInt_t f) const
Int_tTObject::TestBits(UInt_t f) const
Int_tTimedWait(ULong_t secs, ULong_t nanoSecs)
Int_tTimedWaitRelative(ULong_t ms)
virtual voidTObject::UseCurrentStyle()
Int_tWait()
virtual voidTObject::Warning(const char* method, const char* msgfmt) const
virtual Int_tTObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_tTObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const
protected:
virtual voidTObject::DoError(int level, const char* location, const char* fmt, va_list va) const
voidTObject::MakeZombie()
private:
TCondition(const TCondition&)
TCondition&operator=(const TCondition&)

Data Members

public:
enum TObject::EStatusBits { kCanDelete
kMustCleanup
kObjInCanvas
kIsReferenced
kHasUUID
kCannotPick
kNoContextMenu
kInvalidObject
};
enum TObject::[unnamed] { kIsOnHeap
kNotDeleted
kZombie
kBitMask
kSingleKey
kOverwrite
kWriteDelete
};
private:
TConditionImp*fConditionImppointer to condition variable implementation
TMutex*fMutexmutex used around Wait() and TimedWait()
Bool_tfPrivateMutexis fMutex our private mutex

Class Charts

Inheritance Inherited Members Includes Libraries
Class Charts

Function documentation

TCondition(TMutex *m)
 Create a condition variable. The actual condition implementation
 will be provided via the TThreadFactory. If no external mutex is
 provided one will be created. Use GetMutex() to get this mutex
 and use it before calling Signal() or Broadcast().
~TCondition()
 Clean up condition variable.
TMutex * GetMutex()
 Get internally created mutex. Use it to lock resources
 before calling Signal() or Broadcast(). Returns 0 if
 external mutex was provided in TCondition ctor.
Int_t Wait()
 Wait to be signaled.
Int_t TimedWait(ULong_t secs, ULong_t nanoSecs)
 Wait to be signaled or till the timer times out.
 This method is given an absolute time since the beginning of
 the EPOCH (use TThread::GetTime() to get this absolute time).
 To wait for a relative time from now, use
 TCondition::TimedWaitRelative(ULong_t ms).
 Returns 0 if successfully signalled, 1 if time expired and -1 in
 case of error.
Int_t TimedWaitRelative(ULong_t ms)
 Wait to be signaled or till the timer times out.
 This method is given a relative time from now.
 To wait for an absolute time since the beginning of the EPOCH, use
 TCondition::TimedWait(ULong_t secs, ULong_t nanoSec).
 Returns 0 if successfully signalled, 1 if time expired and -1 in
 case of error.
TCondition(const TCondition&)
TCondition& operator=(const TCondition& )
Int_t Signal()
{ if (fConditionImp) return fConditionImp->Signal(); return -1; }
Int_t Broadcast()
{ if (fConditionImp) return fConditionImp->Broadcast(); return -1; }

Author: Fons Rademakers 01/07/97
Last update: root/thread:$Id: TCondition.h 20882 2007-11-19 11:31:26Z rdm $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
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