workerdMerged#5919
Implement internal.h/c++ drainingRead
Implements internal.h/c++ side of drainingRead, allowing for larger buffer reads in internal streams.
2 substantial PRs (6 merged). 2 in workerd.
Implements internal.h/c++ side of drainingRead, allowing for larger buffer reads in internal streams.
Implements drainingRead mechanism for JS-backed streams, consuming data synchronously on each read to improve performance.