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network: on freebsd using SO_REUSEPORT_LB for a better distribution.

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SO_REUSEPORT on FreeBSD acts differently as the underlying semantic
is different (as it predates Linux) since it s more for UDP/multicasts.
The SO_REUSEPORT_LB flag, however, uses load balancing for group
of address:port combinations which is how Linux is implemented.

Co-authored-by: Jakub Zelenka <bukka@php.net>
This commit is contained in:
David Carlier
2025-10-20 22:42:56 +00:00
committed by Jakub Zelenka
parent aead67d0bb
commit f900035b27
1 changed files with 6 additions and 0 deletions
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6
main/network.c
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@@ -512,7 +512,13 @@ php_socket_t php_network_bind_socket_to_local_addr(const char *host, unsigned po
#endif
#ifdef SO_REUSEPORT
if (sockopts & STREAM_SOCKOP_SO_REUSEPORT) {
# ifdef SO_REUSEPORT_LB
/* Historically, SO_REUSEPORT on FreeBSD predates Linux version, however does not
* involve load balancing grouping thus SO_REUSEPORT_LB is the genuine equivalent.*/
setsockopt(sock, SOL_SOCKET, SO_REUSEPORT_LB, (char*)&sockoptval, sizeof(sockoptval));
# else
setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, (char*)&sockoptval, sizeof(sockoptval));
# endif
}
#endif
#ifdef SO_BROADCAST