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e50cf8765b
* Renamed vm_cache.h/vm_address_space.h to VMCache.h/VMAddressSpace. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34449 a95241bf-73f2-0310-859d-f6bbb57e9c96
119 lines
2.8 KiB
C++
119 lines
2.8 KiB
C++
/*
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* Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
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* Copyright 2002-2008, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
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* Distributed under the terms of the MIT License.
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*
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* Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
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* Distributed under the terms of the NewOS License.
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*/
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#ifndef _KERNEL_VM_VM_ADDRESS_SPACE_H
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#define _KERNEL_VM_VM_ADDRESS_SPACE_H
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#include <OS.h>
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#include <vm/vm_translation_map.h>
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struct VMArea;
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struct VMAddressSpace {
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VMAddressSpace(team_id id, addr_t base,
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size_t size, bool kernel);
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~VMAddressSpace();
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static status_t Init();
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static status_t InitPostSem();
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team_id ID() const { return fID; }
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addr_t Base() const { return fBase; }
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size_t Size() const { return fSize; }
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bool IsBeingDeleted() const { return fDeleting; }
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vm_translation_map& TranslationMap() { return fTranslationMap; }
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status_t ReadLock()
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{ return rw_lock_read_lock(&fLock); }
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void ReadUnlock()
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{ rw_lock_read_unlock(&fLock); }
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status_t WriteLock()
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{ return rw_lock_write_lock(&fLock); }
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void WriteUnlock()
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{ rw_lock_write_unlock(&fLock); }
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int32 RefCount() const
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{ return fRefCount; }
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void Get() { atomic_add(&fRefCount, 1); }
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void Put();
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void RemoveAndPut();
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void IncrementFaultCount()
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{ atomic_add(&fFaultCount, 1); }
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void IncrementChangeCount()
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{ fChangeCount++; }
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VMArea* LookupArea(addr_t address);
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void RemoveArea(VMArea* area);
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static status_t Create(team_id teamID, addr_t base, size_t size,
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bool kernel,
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VMAddressSpace** _addressSpace);
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static team_id KernelID()
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{ return sKernelAddressSpace->ID(); }
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static VMAddressSpace* Kernel()
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{ return sKernelAddressSpace; }
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static VMAddressSpace* GetKernel();
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static team_id CurrentID();
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static VMAddressSpace* GetCurrent();
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static VMAddressSpace* Get(team_id teamID);
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VMAddressSpace*& HashTableLink() { return fHashTableLink; }
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void Dump() const;
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private:
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static int _DumpCommand(int argc, char** argv);
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static int _DumpListCommand(int argc, char** argv);
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public:
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VMArea* areas;
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private:
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struct HashDefinition;
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private:
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VMAddressSpace* fHashTableLink;
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addr_t fBase;
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size_t fSize;
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rw_lock fLock;
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team_id fID;
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int32 fRefCount;
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int32 fFaultCount;
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int32 fChangeCount;
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vm_translation_map fTranslationMap;
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VMArea* fAreaHint;
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bool fDeleting;
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static VMAddressSpace* sKernelAddressSpace;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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status_t vm_delete_areas(struct VMAddressSpace *aspace);
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#define vm_swap_address_space(from, to) arch_vm_aspace_swap(from, to)
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#ifdef __cplusplus
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}
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#endif
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#endif /* _KERNEL_VM_VM_ADDRESS_SPACE_H */
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