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* Initial cache memory allocator implementation * Get rid of CallFlag * Perform cache cleanup on exit * Basic cache invalidation * Thats not how conditionals works in C# it seems * Set PTC version to PR number * Address PR feedback * Update InstEmitFlowHelper.cs * Flag clear on address is no longer needed * Do not include exit block in function size calculation * Dispose jump table * For future use * InternalVersion = 1519 (force retest). Co-authored-by: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>
59 lines
1.7 KiB
C#
59 lines
1.7 KiB
C#
using System;
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namespace ARMeilleure.Memory
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{
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class ReservedRegion
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{
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private const int DefaultGranularity = 65536; // Mapping granularity in Windows.
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public IJitMemoryBlock Block { get; }
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public IntPtr Pointer => Block.Pointer;
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private readonly ulong _maxSize;
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private readonly ulong _sizeGranularity;
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private ulong _currentSize;
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public ReservedRegion(IJitMemoryAllocator allocator, ulong maxSize, ulong granularity = 0)
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{
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if (granularity == 0)
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{
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granularity = DefaultGranularity;
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}
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Block = allocator.Reserve(maxSize);
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_maxSize = maxSize;
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_sizeGranularity = granularity;
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_currentSize = 0;
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}
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public void ExpandIfNeeded(ulong desiredSize)
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{
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if (desiredSize > _maxSize)
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{
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throw new OutOfMemoryException();
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}
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if (desiredSize > _currentSize)
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{
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// Lock, and then check again. We only want to commit once.
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lock (this)
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{
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if (desiredSize >= _currentSize)
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{
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ulong overflowBytes = desiredSize - _currentSize;
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ulong moreToCommit = (((_sizeGranularity - 1) + overflowBytes) / _sizeGranularity) * _sizeGranularity; // Round up.
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Block.Commit(_currentSize, moreToCommit);
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_currentSize += moreToCommit;
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}
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}
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}
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}
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public void Dispose()
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{
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Block.Dispose();
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}
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}
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}
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