| Chris Lattner | 30fdc8d | 2010-06-08 16:52:24 +0000 | [diff] [blame^] | 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(); |
| 30 | |
| 31 | protected: |
| 32 | nub_size_t MaxBytesLeftInPage(nub_addr_t addr, nub_size_t count); |
| 33 | |
| 34 | nub_size_t WriteRegion(task_t task, const nub_addr_t address, const void *data, const nub_size_t data_count); |
| 35 | vm_size_t m_page_size; |
| 36 | DNBError m_err; |
| 37 | }; |
| 38 | |
| 39 | |
| 40 | #endif // #ifndef __MachVMMemory_h__ |