From 109be507377fe7f6e8819ac94041d3fdcdf6fd2f Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 15:18:25 +0200 Subject: Adding upstream version 1.19.8. Signed-off-by: Daniel Baumann --- src/runtime/pprof/rusage_test.go | 41 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 src/runtime/pprof/rusage_test.go (limited to 'src/runtime/pprof/rusage_test.go') diff --git a/src/runtime/pprof/rusage_test.go b/src/runtime/pprof/rusage_test.go new file mode 100644 index 0000000..b82b1af --- /dev/null +++ b/src/runtime/pprof/rusage_test.go @@ -0,0 +1,41 @@ +// Copyright 2019 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris + +package pprof + +import ( + "syscall" + "time" +) + +func init() { + diffCPUTimeImpl = diffCPUTimeRUsage +} + +func diffCPUTimeRUsage(f func()) (user, system time.Duration) { + ok := true + var before, after syscall.Rusage + + err := syscall.Getrusage(syscall.RUSAGE_SELF, &before) + if err != nil { + ok = false + } + + f() + + err = syscall.Getrusage(syscall.RUSAGE_SELF, &after) + if err != nil { + ok = false + } + + if !ok { + return 0, 0 + } + + user = time.Duration(after.Utime.Nano() - before.Utime.Nano()) + system = time.Duration(after.Stime.Nano() - before.Stime.Nano()) + return user, system +} -- cgit v1.2.3