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Fix shared memory leak on Windows (#3319)

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* Fix shared memory leak on Windows

* Fix memory leak caused by RO session disposal not decrementing the memory manager ref count

* Fix UnmapViewInternal deadlock

* Was not supposed to add those back
This commit is contained in:
gdkchan 2022-05-05 14:58:59 -03:00 • committed by GitHub
parent 39bdf6d41e
commit 54deded929
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 226 additions and 59 deletions
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15
Ryujinx.Memory/WindowsShared/PlaceholderManager.cs
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@ -1,5 +1,6 @@
using System;
using System.Diagnostics;
using System.Runtime.Versioning;
using System.Threading;
namespace Ryujinx.Memory.WindowsShared
@ -7,6 +8,7 @@ namespace Ryujinx.Memory.WindowsShared
/// <summary>
/// Windows memory placeholder manager.
/// </summary>
[SupportedOSPlatform("windows")]
class PlaceholderManager
{
private const ulong MinimumPageSize = 0x1000;
@ -203,7 +205,7 @@ namespace Ryujinx.Memory.WindowsShared
ulong endAddress = startAddress + unmapSize;
var overlaps = Array.Empty<IntervalTreeNode<ulong, ulong>>();
int count = 0;
int count;
lock (_mappings)
{
@ -226,8 +228,11 @@ namespace Ryujinx.Memory.WindowsShared
ulong overlapEnd = overlap.End;
ulong overlapValue = overlap.Value;
_mappings.Remove(overlap);
_mappings.Add(overlapStart, overlapEnd, ulong.MaxValue);
lock (_mappings)
{
_mappings.Remove(overlap);
_mappings.Add(overlapStart, overlapEnd, ulong.MaxValue);
}
bool overlapStartsBefore = overlapStart < startAddress;
bool overlapEndsAfter = overlapEnd > endAddress;
@ -364,7 +369,7 @@ namespace Ryujinx.Memory.WindowsShared
ulong endAddress = reprotectAddress + reprotectSize;
var overlaps = Array.Empty<IntervalTreeNode<ulong, ulong>>();
int count = 0;
int count;
lock (_mappings)
{
@ -534,7 +539,7 @@ namespace Ryujinx.Memory.WindowsShared
{
ulong endAddress = address + size;
var overlaps = Array.Empty<IntervalTreeNode<ulong, MemoryPermission>>();
int count = 0;
int count;
lock (_protections)
{