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1 //===-- MachVMMemory.h ------------------------------------------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 //  Created by Greg Clayton on 6/26/07.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef __MachVMMemory_h__
15 #define __MachVMMemory_h__
16 
17 #include "DNBDefs.h"
18 #include "DNBError.h"
19 #include <mach/mach.h>
20 
21 class MachVMMemory
22 {
23 public:
24     enum { kInvalidPageSize = ~0 };
25     MachVMMemory();
26     ~MachVMMemory();
27     nub_size_t Read(task_t task, nub_addr_t address, void *data, nub_size_t data_count);
28     nub_size_t Write(task_t task, nub_addr_t address, const void *data, nub_size_t data_count);
29     nub_size_t PageSize(task_t task);
30     nub_bool_t GetMemoryRegionInfo(task_t task, nub_addr_t address, DNBRegionInfo *region_info);
31     nub_bool_t GetMemoryProfile(DNBProfileDataScanType scanType, task_t task, struct task_basic_info ti, cpu_type_t cputype, nub_process_t pid, vm_statistics_data_t &vm_stats, uint64_t &physical_memory, mach_vm_size_t &rprvt, mach_vm_size_t &rsize, mach_vm_size_t &vprvt, mach_vm_size_t &vsize, mach_vm_size_t &dirty_size, mach_vm_size_t &purgable, mach_vm_size_t &anonymous);
32 
33 protected:
34     nub_size_t  MaxBytesLeftInPage(task_t task, nub_addr_t addr, nub_size_t count);
35 
36     uint64_t    GetStolenPages(task_t task);
37     void        GetRegionSizes(task_t task, mach_vm_size_t &rsize, mach_vm_size_t &dirty_size);
38     void        GetMemorySizes(task_t task, cpu_type_t cputype, nub_process_t pid, mach_vm_size_t &rprvt, mach_vm_size_t &vprvt);
39 
40 
41     nub_size_t  WriteRegion(task_t task, const nub_addr_t address, const void *data, const nub_size_t data_count);
42 
43     vm_size_t   m_page_size;
44     DNBError    m_err;
45 };
46 
47 
48 #endif //    #ifndef __MachVMMemory_h__
49