golang.org/x/sys/unix.Close
third-partyThe 1243rd most-called third-party function by production calls. Called 645 times across 76 modules; 526 of those run outside tests and generated code.
1% in production calls vs 2026-W39 (519 → 526)
- prod calls
- 526
- non-test, non-generated
- all calls
- 645
- total callsites
- modules
- 76
- distinct callers
- in loop
- 8%
- of prod calls
- in tests
- 18%
- 119 calls
- resolved
- 100%
- to a known target
resolution mix
How each call resolves
How each call was attributed. Only resolved kinds, where the target function is known, count toward the ranking. Interface dispatch and unresolved receivers are reported separately and never guessed. Read the taxonomy →
- Package function98%A direct call to an exported package function, resolved by type.
- Package function (by syntax)2%A package function in a module outside the crawl, keyed by import path.
who calls this
Notable callers
Production calls into Close from notable Go projects. Open one on the map to see what else it hammers.
- containerd 25 5%
- Docker 16 3%
- Kubernetes 14 3%
- Istio 8 2%
- Grafana 6 1%
where it's called
Callsites in the wild
12 representative callsites of 645, prioritizing in-loop and non-test usage. We link to source, never display it.
- in loop
-
moby/moby @v28.5.2+incompatible
in loop - in loop
- in loop
-
google/gvisor @v0.0.0-20260927234935-6485c3fbdfe2
in loop -
microsoft/typescript-go @v0.0.0-20260820064610-89d5d5b2849a
in loop - in loop
- in loop
- in loop
- in loop
-
sagernet/gvisor @v0.0.0-20260727.0-sing-box-mod.1
in loop -
sagernet/tailscale @v1.102.1-sing-box-1.14-mod.5
in loop
top callers
The modules that reach for it
The modules that call Close most in this snapshot.
- github.com/google/gvisor23436%
- golang.org/x/sys315%
- github.com/sagernet/gvisor213%
- github.com/opencontainers/runc173%
- github.com/podman-container-tools/buildah173%
siblings
More from golang.org/x/sys/unix
The other most-called functions in this package. See all →