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