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Joe Tsai 2e5d08ec4f net/connstats: invert network logging data flow (#6272) ... Previously, tstun.Wrapper and magicsock.Conn managed their own statistics data structure and relied on an external call to Extract to extract (and reset) the statistics. This makes it difficult to ensure a maximum size on the statistics as the caller has no introspection into whether the number of unique connections is getting too large. Invert the control flow such that a *connstats.Statistics is registered with tstun.Wrapper and magicsock.Conn. Methods on non-nil *connstats.Statistics are called for every packet. This allows the implementation of connstats.Statistics (in the future) to better control when it needs to flush to ensure bounds on maximum sizes. The value registered into tstun.Wrapper and magicsock.Conn could be an interface, but that has two performance detriments: 1. Method calls on interface values are more expensive since they must go through a virtual method dispatch. 2. The implementation would need a sync.Mutex to protect the statistics value instead of using an atomic.Pointer. Given that methods on constats.Statistics are called for every packet, we want reduce the CPU cost on this hot path. Signed-off-by: Joe Tsai <joetsai@digital-static.net>		2 years ago
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addlicense	cmd/addlicense: add command to add licenseheaders to generated code	3 years ago
cloner	cmd/{cloner,viewer}: add support for map values with pointers	2 years ago
containerboot	all: standardize on LocalAPI	2 years ago
derper	ipn/ipnauth, util/winutil: add temporary LookupPseudoUser workaround to address os/user.LookupId errors on Windows	2 years ago
derpprobe	cmd/derpprobe: add -once flag for one-off CLI diagnostics	2 years ago
gitops-pusher	cmd/gitops-pusher: standardize hujson before posting to validate (#5525)	2 years ago
hello	refactor: move from io/ioutil to io and os packages	2 years ago
mkmanifest	cmd/{tailscale,tailscaled}: embed manifest into Windows binaries	2 years ago
mkpkg	cmd/mkpkg: use package flag (#4373)	3 years ago
netlogfmt	cmd/netlogfmt: handle any stream of network logs (#6108)	2 years ago
nginx-auth	cmd/nginx-auth: add experimental status badge to README	2 years ago
pgproxy	cmd/pgproxy: link to blog post at the top.	2 years ago
printdep	Docker: add ALPINE.txt to manage alpine versions	2 years ago
proxy-to-grafana	all: gofmt for Go 1.19	2 years ago
speedtest	net/speedtest: retune to meet iperf on localhost in a VM	2 years ago
ssh-auth-none-demo	ssh/tailssh: add password-forcing workaround for buggy SSH clients	2 years ago
stunc	cmd/stunc: add command for making debug stun requests	2 years ago
tailscale	cmd/tailscale,ipn: improve UX of lock init command, cosmetic changes	2 years ago
tailscaled	net/connstats: invert network logging data flow (#6272)	2 years ago
testcontrol	all: use any instead of interface{}	3 years ago
tsconnect	ipn/ipnserver: change Server to let LocalBackend be supplied async	2 years ago
tsshd	all: remove old +build tags	2 years ago
viewer	all: fix spelling mistakes	2 years ago