5c99d63970
introduces the following relevant changes:
* VMCache:
- Renamed vm_cache to VMCache, merged it with vm_store and made it a
C++ class with virtual methods (replacing the store operations).
Turned the different store implementations into subclasses.
- Introduced MergeStore() callback, changed semantics of Commit().
- Changed locking and referencing semantics. A reference can only be
acquired/released with the cache locked. An unreferenced cache is
deleted and a mergeable cache merged when it is unlocked. This
removes the "busy" state of a cache and simplifies the page fault
code.
* Added VMAnonymousCache, which will implement swap support (work by
Zhao Shuai). It is not integrated and used yet, though.
* Enabled the mutex/recursive lock holder asserts.
* Fixed DoublyLinkedList::Swap().
* Generalized the low memory handler to a low resource handler. And made
semaphores and reserved memory handled resources. Made
vm_try_resource_memory() optionally wait (with timeout), and used that
feature to reserve memory for areas.
...
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26572 a95241bf-73f2-0310-859d-f6bbb57e9c96
32 lines
601 B
C
32 lines
601 B
C
/*
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* Copyright 2003-2007, Axel Dörfler, axeld@pinc-software.de.
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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_CACHE_H
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#define _KERNEL_VM_CACHE_H
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#include <kernel.h>
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#include <vm.h>
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struct kernel_args;
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#ifdef __cplusplus
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extern "C" {
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#endif
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status_t vm_cache_init(struct kernel_args *args);
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struct VMCache *vm_cache_acquire_locked_page_cache(struct vm_page *page,
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bool dontWait);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _KERNEL_VM_CACHE_H */
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