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Refactor meminfo_bsd.go to use sysctl_bsd.go (#501)

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* Refactor meminfo_bsd.go to use sysctl_bsd.go

* Fixed spelling.
This commit is contained in:
Derek Marcotte 2017-03-07 20:54:28 -05:00 committed by Tobias Schmidt
parent 309b313162
commit 72d8576185
2 changed files with 20 additions and 39 deletions
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52
collector/meminfo_bsd.go
View file

@ -22,19 +22,6 @@ import (
"golang.org/x/sys/unix" "golang.org/x/sys/unix"
) )
type sysctlType uint8
const (
sysctlTypeUint32 sysctlType = iota
sysctlTypeUint64
)
type meminfoSysctl struct {
name string
dataType sysctlType
conversion func(uint64) uint64
}
func (c *meminfoCollector) getMemInfo() (map[string]float64, error) { func (c *meminfoCollector) getMemInfo() (map[string]float64, error) {
info := make(map[string]float64) info := make(map[string]float64)
@ -47,37 +34,24 @@ func (c *meminfoCollector) getMemInfo() (map[string]float64, error) {
return v * size return v * size
} }
for key, v := range map[string]meminfoSysctl{ for _, ctl := range []bsdSysctl{
"active_bytes": {"vm.stats.vm.v_active_count", sysctlTypeUint32, fromPage}, {name: "active_bytes", mib: "vm.stats.vm.v_active_count", conversion: fromPage},
"inactive_bytes": {"vm.stats.vm.v_inactive_count", sysctlTypeUint32, fromPage}, {name: "inactive_bytes", mib: "vm.stats.vm.v_inactive_count", conversion: fromPage},
"wired_bytes": {"vm.stats.vm.v_wire_count", sysctlTypeUint32, fromPage}, {name: "wired_bytes", mib: "vm.stats.vm.v_wire_count", conversion: fromPage},
"cache_bytes": {"vm.stats.vm.v_cache_count", sysctlTypeUint32, fromPage}, {name: "cache_bytes", mib: "vm.stats.vm.v_cache_count", conversion: fromPage},
"buffer_bytes": {"vfs.bufspace", sysctlTypeUint32, nil}, {name: "buffer_bytes", mib: "vfs.bufspace"},
"free_bytes": {"vm.stats.vm.v_free_count", sysctlTypeUint32, fromPage}, {name: "free_bytes", mib: "vm.stats.vm.v_free_count", conversion: fromPage},
"size_bytes": {"vm.stats.vm.v_page_count", sysctlTypeUint32, fromPage}, {name: "size_bytes", mib: "vm.stats.vm.v_page_count", conversion: fromPage},
"swap_in_bytes_total": {"vm.stats.vm.v_swappgsin", sysctlTypeUint32, fromPage}, {name: "swap_in_bytes_total", mib: "vm.stats.vm.v_swappgsin", conversion: fromPage},
"swap_out_bytes_total": {"vm.stats.vm.v_swappgsout", sysctlTypeUint32, fromPage}, {name: "swap_out_bytes_total", mib: "vm.stats.vm.v_swappgsout", conversion: fromPage},
"swap_size_bytes": {"vm.swap_total", sysctlTypeUint64, nil}, {name: "swap_size_bytes", mib: "vm.swap_total", dataType: bsdSysctlTypeUint64},
} { } {
var tmp64 uint64 v, err := ctl.Value()
switch v.dataType {
case sysctlTypeUint32:
tmp32, err = unix.SysctlUint32(v.name)
tmp64 = uint64(tmp32)
case sysctlTypeUint64:
tmp64, err = unix.SysctlUint64(v.name)
}
if err != nil { if err != nil {
return nil, err return nil, err
} }
if v.conversion != nil { info[ctl.name] = v
// Convert to bytes.
info[key] = float64(v.conversion(tmp64))
continue
}
info[key] = float64(tmp64)
} }
return info, nil return info, nil

7
collector/sysctl_bsd.go
View file

@ -48,6 +48,9 @@ type bsdSysctl struct {
// Sysctl data-type // Sysctl data-type
dataType bsdSysctlType dataType bsdSysctlType
// Post-retrieval conversion hooks
conversion func(uint64) uint64
} }
func (b bsdSysctl) Value() (float64, error) { func (b bsdSysctl) Value() (float64, error) {
@ -66,5 +69,9 @@ func (b bsdSysctl) Value() (float64, error) {
return 0, err return 0, err
} }
if b.conversion != nil {
return float64(b.conversion(tmp64)), nil
}
return float64(tmp64), nil return float64(tmp64), nil
} }