/// <summary>
/// Loads this buffer's content into physical memory.
///
/// <para> This method makes a best effort to ensure that, when it returns,
/// this buffer's content is resident in physical memory. Invoking this
/// method may cause some number of page faults and I/O operations to
/// occur. </para>
/// </summary>
/// <returns> This buffer </returns>
public MappedByteBuffer Load()
{
CheckMapped();
if ((Address == 0) || (Capacity() == 0))
{
return(this);
}
long offset = MappingOffset();
long length = MappingLength(offset);
load0(MappingAddress(offset), length);
// Read a byte from each page to bring it into memory. A checksum
// is computed as we go along to prevent the compiler from otherwise
// considering the loop as dead code.
Unsafe @unsafe = Unsafe.Unsafe;
int ps = Bits.PageSize();
int count = Bits.PageCount(length);
long a = MappingAddress(offset);
sbyte x = 0;
for (int i = 0; i < count; i++)
{
x ^= @unsafe.getByte(a);
a += ps;
}
if (Unused != 0)
{
Unused = x;
}
return(this);
}
