// PageStats get pages related stats
// Go equivalent to sg_get_page_stats_diff
func (s *Stat) PageStats() *PageStats {
s.Lock()
defer s.Unlock()
page_stats := C.sg_get_page_stats_diff(nil)
p := &PageStats{
PageIn: int(page_stats.pages_pagein),
PageOut: int(page_stats.pages_pageout),
}
return p
}
// PageStats get pages related stats
// Go equivalent to sg_get_page_stats_diff
func (s *Stat) PageStats() *PageStats {
s.Lock()
defer s.Unlock()
var p *PageStats
do(func() {
page_stats := C.sg_get_page_stats_diff(nil)
p = &PageStats{
PageIn: int(page_stats.pages_pagein),
PageOut: int(page_stats.pages_pageout),
Period: time.Duration(int(page_stats.systime)),
TimeTaken: time.Now(),
}
})
return p
}
// NewStat return a new Stat handle
func NewStat() *Stat {
s := &Stat{}
runtime.SetFinalizer(s, (*Stat).free)
initDone := make(chan bool)
s.exitMessage = make(chan bool)
C.sg_init(1)
go func() {
// We need some function calls to be performed on the same thread
// Those for which statgrab is using a thread local
runtime.LockOSThread()
defer runtime.UnlockOSThread()
// Throw away the first reading as thats averaged over the machines uptime
C.sg_get_cpu_stats_diff(nil)
C.sg_get_network_io_stats_diff(nil)
C.sg_get_page_stats_diff(nil)
C.sg_get_disk_io_stats_diff(nil)
initDone <- true
for {
select {
case <-s.exitMessage:
break
case f := <-mainfunc:
f()
}
}
}()
<-initDone
return s
}