inprocess_shared_mem.h

Go to the documentation of this file.

// Copyright 2011 Google Inc.

#ifndef PAGESPEED_KERNEL_SHAREDMEM_INPROCESS_SHARED_MEM_H_
#define PAGESPEED_KERNEL_SHAREDMEM_INPROCESS_SHARED_MEM_H_

#include <cstddef>
#include <map>

#include "pagespeed/kernel/base/abstract_shared_mem.h"
#include "pagespeed/kernel/base/basictypes.h"
#include "pagespeed/kernel/base/string.h"

namespace net_instaweb {

class MessageHandler;
class ThreadSystem;

class InProcessSharedMem : public AbstractSharedMem {
 public:
  explicit InProcessSharedMem(ThreadSystem* thread_system);
  virtual ~InProcessSharedMem();

  virtual size_t SharedMutexSize() const;
  virtual AbstractSharedMemSegment* CreateSegment(
      const GoogleString& name, size_t size, MessageHandler* handler);
  virtual AbstractSharedMemSegment* AttachToSegment(
      const GoogleString& name, size_t size, MessageHandler* handler);
  virtual void DestroySegment(const GoogleString& name,
                              MessageHandler* handler);

 private:
  class DelegateMutex;
  class DelegateSegment;
  class Segment;
  typedef std::map<GoogleString, Segment*> SegmentMap;

  ThreadSystem* thread_system_;
  SegmentMap segments_;

  
};

}  

#endif