mirror of
https://github.com/mirror/processhacker
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wj32
73abc16546
* x64: WOW64 stack walking works, but no symbols * x64: fixed dbghelp.dll auto-detection * updated Help.htm, HACKING.txt, README.txt * PH output now shows whether the system is 32- or 64-bit * fixed no symbols for protected processes (System) without KPH git-svn-id: svn://svn.code.sf.net/p/processhacker/code@1695 21ef857c-d57f-4fe0-8362-d861dc6d29cd
103 lines
3.2 KiB
C#
103 lines
3.2 KiB
C#
/*
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* Process Hacker -
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* memory allocation wrapper
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*
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* Copyright (C) 2008 wj32
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*
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* This file is part of Process Hacker.
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*
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* Process Hacker is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Process Hacker is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Process Hacker. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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using System.Text;
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using ProcessHacker.Common.Objects;
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using ProcessHacker.Native.Api;
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namespace ProcessHacker.Native
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{
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/// <summary>
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/// Represents an unmanaged memory allocation from the heap.
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/// </summary>
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public class MemoryAlloc : MemoryRegion
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{
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// A private heap just for the client.
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private static Heap _privateHeap = new Heap(HeapFlags.Class1 | HeapFlags.Growable);
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private static Heap _processHeap = Heap.GetDefault();
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public static IntPtr PrivateHeap
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{
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get { return _privateHeap.Address; }
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}
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/// <summary>
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/// Creates a new, invalid memory allocation.
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/// You must set the pointer using the Memory property.
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/// </summary>
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protected MemoryAlloc()
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: base()
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{ }
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public MemoryAlloc(IntPtr memory)
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: this(memory, true)
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{ }
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public MemoryAlloc(IntPtr memory, bool owned)
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: this(memory, 0, owned)
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{ }
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public MemoryAlloc(IntPtr memory, int size, bool owned)
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: base(memory, size, owned)
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{ }
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/// <summary>
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/// Creates a new memory allocation with the specified size.
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/// </summary>
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/// <param name="size">The amount of memory, in bytes, to allocate.</param>
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public MemoryAlloc(int size)
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{
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this.Memory = _privateHeap.Allocate(0, size);
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this.Size = size;
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}
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/// <summary>
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/// Creates a new memory allocation with the specified size.
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/// </summary>
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/// <param name="size">The amount of memory, in bytes, to allocate.</param>
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/// <param name="flags">Any flags to use.</param>
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public MemoryAlloc(int size, HeapFlags flags)
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{
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this.Memory = _privateHeap.Allocate(flags, size);
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this.Size = size;
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}
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protected override void Free()
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{
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_privateHeap.Free(0, this);
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}
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/// <summary>
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/// Resizes the memory allocation.
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/// </summary>
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/// <param name="newSize">The new size of the allocation.</param>
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public virtual void Resize(int newSize)
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{
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this.Memory = _privateHeap.Reallocate(0, this.Memory, newSize);
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this.Size = newSize;
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}
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}
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}
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