private static IReadOnlyList <TValue> ReadStreamList <THeader, TValue>(View view, IReadOnlyList <Native.MinidumpDirectory> directory, Native.MinidumpStreamType streamType, Func <THeader, uint> countAccessor)
where THeader : unmanaged
where TValue : unmanaged
{
if (!FindStream(directory, streamType, out var location) || location.DataSize < sizeof(THeader))
{
return(ImmutableList <TValue> .Empty);
}
var start = view.GetPointer(location);
var count = countAccessor(*(THeader *)start);
if (location.DataSize != (sizeof(THeader) + (count * sizeof(TValue))))
{
return(ImmutableList <TValue> .Empty);
}
var list = ImmutableList <TValue> .Empty;
for (var i = 0; i < count; i++)
{
list = list.Add(*(TValue *)(start + sizeof(THeader) + (i * sizeof(TValue))));
}
return(list);
}
private static T ReadStreamStruct <T>(View view, IReadOnlyList <Native.MinidumpDirectory> directory, Native.MinidumpStreamType streamType) where T : unmanaged => !FindStream(directory, streamType, out var location) || location.DataSize != sizeof(T) ? default : *(T *)view.GetPointer(location);
private static IReadOnlyList <T> ReadStreamList <T>(View view, IReadOnlyList <Native.MinidumpDirectory> directory, Native.MinidumpStreamType streamType) where T : unmanaged
{
if (!FindStream(directory, streamType, out var location) || location.DataSize < sizeof(uint))
{
return(ImmutableList <T> .Empty);
}
var start = view.GetPointer(location);
var count = *(uint *)start;
if (location.DataSize != (sizeof(uint) + (count * sizeof(T))))
{
return(ImmutableList <T> .Empty);
}
var list = ImmutableList <T> .Empty;
for (var i = 0; i < count; i++)
{
list = list.Add(*(T *)(start + sizeof(uint) + (i * sizeof(T))));
}
return(list);
}
private static bool FindStream(IReadOnlyList <Native.MinidumpDirectory> directory, Native.MinidumpStreamType streamType, out Native.MinidumpLocationDescriptor location)
{
var directoryEntry = directory.Where(d => d.StreamType == streamType).SingleOrDefault();
location = directoryEntry.Location;
return(directoryEntry.StreamType == streamType);
}
