shirou_gopsutil/mem/mem_aix_nocgo.go

82 lines
1.9 KiB
Go

//go:build aix && !cgo
// +build aix,!cgo
package mem
import (
"context"
"regexp"
"strconv"
"strings"
"github.com/shirou/gopsutil/v3/internal/common"
)
var whiteSpaces = regexp.MustCompile(`\s+`)
func VirtualMemoryWithContext(ctx context.Context) (*VirtualMemoryStat, error) {
vmem, swap, err := callSVMon(ctx)
if err != nil {
return nil, err
}
if vmem.Total == 0 {
return nil, common.ErrNotImplementedError
}
vmem.SwapTotal = swap.Total
vmem.SwapFree = swap.Free
return vmem, nil
}
func SwapMemoryWithContext(ctx context.Context) (*SwapMemoryStat, error) {
_, swap, err := callSVMon(ctx)
if err != nil {
return nil, err
}
if swap.Total == 0 {
return nil, common.ErrNotImplementedError
}
return swap, nil
}
func callSVMon(ctx context.Context) (*VirtualMemoryStat, *SwapMemoryStat, error) {
out, err := invoke.CommandWithContext(ctx, "svmon", "-G")
if err != nil {
return nil, nil, err
}
pagesize := uint64(4096)
vmem := &VirtualMemoryStat{}
swap := &SwapMemoryStat{}
for _, line := range strings.Split(string(out), "\n") {
if strings.HasPrefix(line, "memory") {
p := whiteSpaces.Split(line, 7)
if len(p) > 2 {
if t, err := strconv.ParseUint(p[1], 10, 64); err == nil {
vmem.Total = t * pagesize
}
if t, err := strconv.ParseUint(p[2], 10, 64); err == nil {
vmem.Used = t * pagesize
if vmem.Total > 0 {
vmem.UsedPercent = 100 * float64(vmem.Used) / float64(vmem.Total)
}
}
if t, err := strconv.ParseUint(p[3], 10, 64); err == nil {
vmem.Free = t * pagesize
}
}
} else if strings.HasPrefix(line, "pg space") {
p := whiteSpaces.Split(line, 4)
if len(p) > 3 {
if t, err := strconv.ParseUint(p[2], 10, 64); err == nil {
swap.Total = t * pagesize
}
if t, err := strconv.ParseUint(p[3], 10, 64); err == nil {
swap.Free = swap.Total - t*pagesize
}
}
break
}
}
return vmem, swap, nil
}