private async Task <MinidumpMemoryReader> GetMemoryReader()
{
List <MinidumpSegment> segments = new List <MinidumpSegment>();
FileStream fileStream = File.Open(_crashDump, FileMode.Open, FileAccess.Read, FileShare.Read);
byte[]? buffer = ArrayPool <byte> .Shared.Rent(128);
try
{
for (int i = 0; i < _directories.Length; i++)
{
if (_directories[i].StreamType == MinidumpStreamType.MemoryListStream)
{
// MINIDUMP_MEMORY_LIST only contains a count followed by MINIDUMP_MEMORY_DESCRIPTORs
uint count = await ReadAsync <uint>(fileStream, buffer, _directories[i].Rva).ConfigureAwait(false);
int byteCount = ResizeBytesForArray <MinidumpMemoryDescriptor>(count, ref buffer);
if (await fileStream.ReadAsync(buffer, 0, byteCount).ConfigureAwait(false) == byteCount)
{
AddSegments(segments, buffer, byteCount);
}
}
else if (_directories[i].StreamType == MinidumpStreamType.Memory64ListStream)
{
MinidumpMemory64List memList64 = await ReadAsync <MinidumpMemory64List>(fileStream, buffer, _directories[i].Rva).ConfigureAwait(false);
int byteCount = ResizeBytesForArray <MinidumpMemoryDescriptor>(memList64.NumberOfMemoryRanges, ref buffer);
if (await fileStream.ReadAsync(buffer, 0, byteCount).ConfigureAwait(false) == byteCount)
{
AddSegments(segments, memList64.Rva, buffer, byteCount);
}
}
}
}
finally
{
if (buffer != null)
{
ArrayPool <byte> .Shared.Return(buffer);
}
}
MinidumpSegment[] result = segments.Where(s => s.Size > 0).OrderBy(s => s.VirtualAddress).ToArray();
return(new MinidumpMemoryReader(result, fileStream, PointerSize));
}
private ImmutableArray <MinidumpSegment> GetSegments(Stream stream)
{
List <MinidumpSegment> segments = new List <MinidumpSegment>();
byte[]? buffer = ArrayPool <byte> .Shared.Rent(128);
try
{
for (int i = 0; i < _directories.Length; i++)
{
if (_directories[i].StreamType == MinidumpStreamType.MemoryListStream)
{
// MINIDUMP_MEMORY_LIST only contains a count followed by MINIDUMP_MEMORY_DESCRIPTORs
uint count = Read <uint>(stream, _directories[i].Rva);
int byteCount = ResizeBytesForArray <MinidumpMemoryDescriptor>(count, ref buffer);
if (stream.Read(buffer, 0, byteCount) == byteCount)
{
AddSegments(segments, buffer, byteCount);
}
}
else if (_directories[i].StreamType == MinidumpStreamType.Memory64ListStream)
{
MinidumpMemory64List memList64 = Read <MinidumpMemory64List>(stream, _directories[i].Rva);
int byteCount = ResizeBytesForArray <MinidumpMemoryDescriptor>(memList64.NumberOfMemoryRanges, ref buffer);
if (stream.Read(buffer, 0, byteCount) == byteCount)
{
AddSegments(segments, memList64.Rva, buffer, byteCount);
}
}
}
}
finally
{
if (buffer != null)
{
ArrayPool <byte> .Shared.Return(buffer);
}
}
return(segments.Where(s => s.Size > 0).OrderBy(s => s.VirtualAddress).ToImmutableArray());
}