NEWS

fraq 1.1.3

Fix fraq_concat() discarding output written to a .fifo path when the reader is not keeping up. Buffered bytes are now drained before the writer is closed, matching what fraq_run() already did.
Fix a file descriptor leak when closing a .fifo writer failed.
Detect forked R processes with RcppParallel::isProcessForkedChild() instead of probing parallel::isChild(), so the serial fallback triggers regardless of which package performed the fork. This raises the minimum RcppParallel version to 6.1.1.
PlainWriter and FraqfFileWriter now tolerate being closed twice, like the gzip and zstd writers already did.

Fix .zst outputs gaining a spurious trailing empty frame: ZstdWriter now flushes with ZSTD_flushStream and only ends the frame in close().
Close .fraq/.mem writers explicitly on the success path, so write errors at close time are reported instead of silently discarded.

Move ShortRead from Imports to Suggests and check for it at runtime in ShortRead bridge helpers.
Add TBB flow graph compatibility helpers so the package builds against both classic TBB and oneTBB (fixes a build failure caused by an RcppParallel/TBB update that removed tbb::flow::source_node and made limiter_node::decrement private).
Add fraq_run_r() for block-oriented R kernels that run on the main R thread while file I/O and compression can continue on nthreads TBB worker threads.
Add serial fallback paths for C++ and R kernels when nthreads = 1, and force the serial path inside forked R processes to avoid using TBB after fork().
Update bundled zstd to 1.5.7.