mirror of
https://github.com/ziglang/zig.git
synced 2024-11-15 08:33:06 +00:00
3ea1276eeb
* io_uring: ring mapped buffers Ring mapped buffers are newer implementation of ring provided buffers, supported since kernel 5.19. Best described in Jens Axboe [post](https://github.com/axboe/liburing/wiki/io_uring-and-networking-in-2023#provided-buffers) This commit implements low level io_uring_*_buf_ring_* functions as mostly direct translation from liburing. It also adds BufferGroup abstraction over those low level functions. * io_uring: add multishot recv to BufferGroup Once we have ring mapped provided buffers functionality it is possible to use multishot recv operation. Multishot receive is submitted once, and completions are posted whenever data arrives on the socket. Received data are placed in a new buffer from buffer group. Reference: [io_uring and networking in 2023](https://github.com/axboe/liburing/wiki/io_uring-and-networking-in-2023#multi-shot) Getting NOENT for cancel completion result, meaning: -ENOENT The request identified by user_data could not be located. This could be because it completed before the cancelation request was issued, or if an invalid identifier is used. https://man7.org/linux/man-pages/man3/io_uring_prep_cancel.3.html https://github.com/ziglang/zig/actions/runs/6801394000/job/18492139893?pr=17806 Result in cancel/recv cqes are different depending on the kernel. on older kernel (tested with v6.0.16, v6.1.57, v6.2.12, v6.4.16) cqe_cancel.err() == .NOENT cqe_crecv.err() == .NOBUFS on kernel (tested with v6.5.0, v6.5.7) cqe_cancel.err() == .SUCCESS cqe_crecv.err() == .CANCELED |
||
|---|---|---|
| .. | ||
| compiler | ||
| compiler_rt | ||
| docs | ||
| include | ||
| init | ||
| libc | ||
| libcxx | ||
| libcxxabi | ||
| libunwind | ||
| std | ||
| tsan | ||
| build_runner.zig | ||
| c.zig | ||
| compiler_rt.zig | ||
| zig.h | ||