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
21class MachVMMemory
22{
23public:
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
33protected:
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