/usr/share/gocode/src/github.com/shirou/gopsutil/mem/mem_openbsd.go is in golang-github-shirou-gopsutil-dev 2.17.08-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 | // +build openbsd
package mem
import (
"bytes"
"encoding/binary"
"errors"
"fmt"
"github.com/shirou/gopsutil/internal/common"
"os/exec"
)
func GetPageSize() (uint64, error) {
mib := []int32{CTLVm, VmUvmexp}
buf, length, err := common.CallSyscall(mib)
if err != nil {
return 0, err
}
if length < sizeOfUvmexp {
return 0, fmt.Errorf("short syscall ret %d bytes", length)
}
var uvmexp Uvmexp
br := bytes.NewReader(buf)
err = common.Read(br, binary.LittleEndian, &uvmexp)
if err != nil {
return 0, err
}
return uint64(uvmexp.Pagesize), nil
}
func VirtualMemory() (*VirtualMemoryStat, error) {
mib := []int32{CTLVm, VmUvmexp}
buf, length, err := common.CallSyscall(mib)
if err != nil {
return nil, err
}
if length < sizeOfUvmexp {
return nil, fmt.Errorf("short syscall ret %d bytes", length)
}
var uvmexp Uvmexp
br := bytes.NewReader(buf)
err = common.Read(br, binary.LittleEndian, &uvmexp)
if err != nil {
return nil, err
}
p := uint64(uvmexp.Pagesize)
ret := &VirtualMemoryStat{
Total: uint64(uvmexp.Npages) * p,
Free: uint64(uvmexp.Free) * p,
Active: uint64(uvmexp.Active) * p,
Inactive: uint64(uvmexp.Inactive) * p,
Cached: 0, // not available
Wired: uint64(uvmexp.Wired) * p,
}
ret.Available = ret.Inactive + ret.Cached + ret.Free
ret.Used = ret.Total - ret.Available
ret.UsedPercent = float64(ret.Used) / float64(ret.Total) * 100.0
mib = []int32{CTLVfs, VfsGeneric, VfsBcacheStat}
buf, length, err = common.CallSyscall(mib)
if err != nil {
return nil, err
}
if length < sizeOfBcachestats {
return nil, fmt.Errorf("short syscall ret %d bytes", length)
}
var bcs Bcachestats
br = bytes.NewReader(buf)
err = common.Read(br, binary.LittleEndian, &bcs)
if err != nil {
return nil, err
}
ret.Buffers = uint64(bcs.Numbufpages) * p
return ret, nil
}
// Return swapctl summary info
func SwapMemory() (*SwapMemoryStat, error) {
swapctl, err := exec.LookPath("swapctl")
if err != nil {
return nil, err
}
out, err := invoke.Command(swapctl, "-sk")
if err != nil {
return &SwapMemoryStat{}, nil
}
line := string(out)
var total, used, free uint64
_, err = fmt.Sscanf(line,
"total: %d 1K-blocks allocated, %d used, %d available",
&total, &used, &free)
if err != nil {
return nil, errors.New("failed to parse swapctl output")
}
percent := float64(used) / float64(total) * 100
return &SwapMemoryStat{
Total: total * 1024,
Used: used * 1024,
Free: free * 1024,
UsedPercent: percent,
}, nil
}
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