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// Copyright (c) 1994 James Clark
// See the file COPYING for copying permission.
#ifndef DescriptorManager_INCLUDED
#define DescriptorManager_INCLUDED 1
#include "Boolean.h"
#include "List.h"
#ifdef SP_NAMESPACE
namespace SP_NAMESPACE {
#endif
class DescriptorManager;
class SP_API DescriptorUser {
public:
DescriptorUser(DescriptorManager *);
virtual ~DescriptorUser();
virtual Boolean suspend();
void managerDeleted();
void acquireD();
void releaseD();
DescriptorManager *manager() const;
private:
DescriptorManager *manager_;
};
class SP_API DescriptorManager {
public:
DescriptorManager(int maxD);
~DescriptorManager();
void acquireD();
void releaseD();
void addUser(DescriptorUser *);
void removeUser(DescriptorUser *);
private:
DescriptorManager(const DescriptorManager &); // undefined
void operator=(const DescriptorManager &); // undefined
int usedD_;
int maxD_;
List<DescriptorUser *> users_;
};
#ifdef SP_NAMESPACE
}
#endif
#endif /* not DescriptorManager_INCLUDED */
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