moonbitlang / async / 1134

78%

Build Type

push

github

Committed by Guest0x0

Commit Message

socket: add reuse_port_lb option to enable SO_REUSEPORT on TcpServer

SO_REUSEPORT lets several sockets bind the same address at once while the
kernel load-balances incoming connections across them, which is the usual
basis for a multi-process server: a supervisor execs N workers, each binds
the same address, and no socket has to be shared between processes.

The load-balancing semantic is Linux-only — the option exists on the BSDs and
MacOS but there the socket that accepts a given connection is unspecified — so
the option is named reuse_port_lb and takes effect only on Linux.

The test binds two servers to one address and asserts that both receive a
connection; the split itself is not deterministic and is not asserted. The
platform check is made at runtime because #cfg(platform=..) only knows windows.

Signed-off-by: Leo Cheng (heke1228) <chengkelfan@qq.com>

Coverage Stats

1 of 1 new or added line in 1 file covered. (100.0%)

1 existing line in 1 file now uncovered.

4175 of 5360 relevant lines covered (77.89%)

11090.1 hits per line