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util/sysresources: remove unused package (#19523)

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Added a few years ago and appears to be unused.

Updates #cleanup

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
This commit is contained in:
Andrew Lytvynov 2026-04-27 09:13:30 -07:00 committed by GitHub
parent 64bb40b45b
commit 346d6bb04c
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GPG Key ID: B5690EEEBB952194
7 changed files with 0 additions and 100 deletions
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10
util/sysresources/memory.go
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@ -1,10 +0,0 @@
// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause
package sysresources
// TotalMemory returns the total accessible system memory, in bytes. If the
// value cannot be determined, then 0 will be returned.
func TotalMemory() uint64 {
return totalMemoryImpl()
}

16
util/sysresources/memory_bsd.go
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@ -1,16 +0,0 @@
// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause
//go:build freebsd || openbsd || dragonfly || netbsd
package sysresources
import "golang.org/x/sys/unix"
func totalMemoryImpl() uint64 {
val, err := unix.SysctlUint64("hw.physmem")
if err != nil {
return 0
}
return val
}

16
util/sysresources/memory_darwin.go
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@ -1,16 +0,0 @@
// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause
//go:build darwin
package sysresources
import "golang.org/x/sys/unix"
func totalMemoryImpl() uint64 {
val, err := unix.SysctlUint64("hw.memsize")
if err != nil {
return 0
}
return val
}

19
util/sysresources/memory_linux.go
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@ -1,19 +0,0 @@
// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause
//go:build linux
package sysresources
import "golang.org/x/sys/unix"
func totalMemoryImpl() uint64 {
var info unix.Sysinfo_t
if err := unix.Sysinfo(&info); err != nil {
return 0
}
// uint64 casts are required since these might be uint32s
return uint64(info.Totalram) * uint64(info.Unit)
}

8
util/sysresources/memory_unsupported.go
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@ -1,8 +0,0 @@
// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause
//go:build !(linux || darwin || freebsd || openbsd || dragonfly || netbsd)
package sysresources
func totalMemoryImpl() uint64 { return 0 }

6
util/sysresources/sysresources.go
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@ -1,6 +0,0 @@
// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause
// Package sysresources provides OS-independent methods of determining the
// resources available to the current system.
package sysresources

25
util/sysresources/sysresources_test.go
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@ -1,25 +0,0 @@
// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause
package sysresources
import (
"runtime"
"testing"
)
func TestTotalMemory(t *testing.T) {
switch runtime.GOOS {
case "linux":
case "freebsd", "openbsd", "dragonfly", "netbsd":
case "darwin":
default:
t.Skipf("not supported on runtime.GOOS=%q yet", runtime.GOOS)
}
mem := TotalMemory()
if mem == 0 {
t.Fatal("wanted TotalMemory > 0")
}
t.Logf("total memory: %v bytes", mem)
}