From 5b8a5c08ce28639e788734b2528faad70baa113c Mon Sep 17 00:00:00 2001 From: Sergey Kandaurov Date: Mon, 26 May 2025 16:11:36 +0400 Subject: Core: added support for TCP keepalive parameters on macOS. The support first appeared in OS X Mavericks 10.9 and documented since OS X Yosemite 10.10. It has a subtle implementation difference from other operating systems in that the TCP_KEEPALIVE socket option (used in place of TCP_KEEPIDLE) isn't inherited from a listening socket to an accepted socket. An apparent reason for this behaviour is that it might be preserved for the sake of backward compatibility. The TCP_KEEPALIVE socket option is not inherited since appearance in OS X Panther 10.3, which long predates two other TCP_KEEPINTVL and TCP_KEEPCNT socket options. Thanks to Andy Pan for initial work. --- auto/unix | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) (limited to 'auto/unix') diff --git a/auto/unix b/auto/unix index 8bd1b1370..0dd66cfcd 100644 --- a/auto/unix +++ b/auto/unix @@ -508,18 +508,20 @@ ngx_feature_test="setsockopt(0, IPPROTO_TCP, TCP_DEFER_ACCEPT, NULL, 0)" . auto/feature -ngx_feature="TCP_KEEPIDLE" -ngx_feature_name="NGX_HAVE_KEEPALIVE_TUNABLE" -ngx_feature_run=no -ngx_feature_incs="#include - #include - #include " -ngx_feature_path= -ngx_feature_libs= -ngx_feature_test="setsockopt(0, IPPROTO_TCP, TCP_KEEPIDLE, NULL, 0); - setsockopt(0, IPPROTO_TCP, TCP_KEEPINTVL, NULL, 0); - setsockopt(0, IPPROTO_TCP, TCP_KEEPCNT, NULL, 0)" -. auto/feature +if test -z "$NGX_KEEPALIVE_CHECKED"; then + ngx_feature="TCP_KEEPIDLE" + ngx_feature_name="NGX_HAVE_KEEPALIVE_TUNABLE" + ngx_feature_run=no + ngx_feature_incs="#include + #include + #include " + ngx_feature_path= + ngx_feature_libs= + ngx_feature_test="setsockopt(0, IPPROTO_TCP, TCP_KEEPIDLE, NULL, 0); + setsockopt(0, IPPROTO_TCP, TCP_KEEPINTVL, NULL, 0); + setsockopt(0, IPPROTO_TCP, TCP_KEEPCNT, NULL, 0)" + . auto/feature +fi ngx_feature="TCP_FASTOPEN" -- cgit