net_instaweb::ThreadSystem Class Reference

#include "thread_system.h"

Inheritance diagram for net_instaweb::ThreadSystem:

Classes
class	Condvar
class	CondvarCapableMutex
class	RWLock
class	ScopedReader
class	Thread
	Base class for client thread code. More...
class	ThreadId
class	ThreadImpl

Public Types
enum	ThreadFlags { kDetached = 0, kJoinable = 1 }

Public Member Functions
virtual CondvarCapableMutex *	NewMutex ()=0
virtual RWLock *	NewRWLock ()=0
virtual Timer *	NewTimer ()=0
virtual ThreadId *	GetThreadId () const =0

Friends
class	Thread
class	MockThreadSystem
class	CheckingThreadSystem

Detailed Description

Subclasses of this represent threading support under given environment, and help create various primitives for it.

Member Function Documentation

virtual ThreadId* net_instaweb::ThreadSystem::GetThreadId ( ) const

pure virtual

Returns an object holding the current thread ID. The resultant object must be freed by the caller.

Implemented in net_instaweb::CheckingThreadSystem, net_instaweb::NullThreadSystem, and net_instaweb::PthreadThreadSystem.

virtual CondvarCapableMutex* net_instaweb::ThreadSystem::NewMutex ( )

pure virtual

Makes a new mutex for this system.

See also CondvarCapableMutex::NewCondvar.

Implemented in net_instaweb::CheckingThreadSystem, net_instaweb::NullThreadSystem, and net_instaweb::PthreadThreadSystem.

virtual RWLock* net_instaweb::ThreadSystem::NewRWLock ( )

pure virtual

This lock will provide following guarantee -

• Reader reentrant safe.
• Writer Priority, this ensures no writer starvation.

Implemented in net_instaweb::CheckingThreadSystem, net_instaweb::NullThreadSystem, and net_instaweb::PthreadThreadSystem.

virtual Timer* net_instaweb::ThreadSystem::NewTimer ( )

pure virtual

Creates and returns a real-time timer. Caller is responsible for deleting.

Todo:

TODO(jmarantz): consider removing this and controlling timers separately.

Implemented in net_instaweb::CheckingThreadSystem, net_instaweb::NullThreadSystem, net_instaweb::PthreadThreadSystem, and net_instaweb::ApacheThreadSystem.

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The documentation for this class was generated from the following file:

• pagespeed/kernel/base/thread_system.h