[llvm-commits] CVS: llvm-poolalloc/runtime/SafePoolAllocator/PageManager.h

[Dinakar Dhurjati]

Changes in directory llvm-poolalloc/runtime/SafePoolAllocator:

PageManager.h added (r1.1)
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Log message:

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Diffs of the changes:  (+40 -0)

 PageManager.h |   40 ++++++++++++++++++++++++++++++++++++++++
 1 files changed, 40 insertions(+)


Index: llvm-poolalloc/runtime/SafePoolAllocator/PageManager.h
diff -c /dev/null llvm-poolalloc/runtime/SafePoolAllocator/PageManager.h:1.1
*** /dev/null	Thu Dec 22 10:51:19 2005
--- llvm-poolalloc/runtime/SafePoolAllocator/PageManager.h	Thu Dec 22 10:51:09 2005
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*** 0 ****
--- 1,40 ----
+ //===- PageManager.h - Allocates memory on page boundaries ------*- C++ -*-===//
+ // 
+ //                     The LLVM Compiler Infrastructure
+ //
+ // This file was developed by the LLVM research group and is distributed under
+ // the University of Illinois Open Source License. See LICENSE.TXT for details.
+ // 
+ //===----------------------------------------------------------------------===//
+ //
+ // This file defines the interface used by the pool allocator to allocate memory
+ // on large alignment boundaries.
+ //
+ //===----------------------------------------------------------------------===//
+ 
+ #ifndef PAGEMANAGER_H
+ #define PAGEMANAGER_H
+ 
+ /// InitializePageManager - This function must be called before any other page
+ /// manager accesses are performed.  It may be called multiple times.
+ /// 
+ void InitializePageManager();
+ 
+ /// PageSize - Contains the size of the unit of memory allocated by
+ /// AllocatePage.  This is a value that is typically several kilobytes in size,
+ /// and is guaranteed to be a power of two.
+ ///
+ extern unsigned PageSize;
+ 
+ /// AllocatePage - This function returns a chunk of memory with size and
+ /// alignment specified by getPageSize().
+ void *AllocatePage();
+ 
+ /// AllocateNPages - 
+ void *AllocateNPages(unsigned Num);
+ 
+ /// FreePage - This function returns the specified page to the pagemanager for
+ /// future allocation.
+ void FreePage(void *Page);
+ 
+ #endif