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🐛 fix: divide by zero

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This commit is contained in:
naiba 2021-01-06 12:46:13 +08:00
parent 115bdcb30a
commit 4e85e40550
1 changed files with 10 additions and 3 deletions
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13
model/alertrule.go
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@ -23,17 +23,24 @@ type Rule struct {
Duration uint64 // 持续时间 (秒) Duration uint64 // 持续时间 (秒)
} }
func percentage(used, total uint64) uint64 {
if total == 0 {
return 0
}
return used * 100 / total
}
func (u *Rule) Snapshot(server *Server) interface{} { func (u *Rule) Snapshot(server *Server) interface{} {
var src uint64 var src uint64
switch u.Type { switch u.Type {
case "cpu": case "cpu":
src = uint64(server.State.CPU) src = uint64(server.State.CPU)
case "memory": case "memory":
src = uint64(server.State.MemUsed / server.Host.MemTotal * 100) src = percentage(server.State.MemUsed, server.Host.MemTotal)
case "swap": case "swap":
src = uint64(server.State.SwapUsed / server.Host.SwapTotal * 100) src = percentage(server.State.SwapUsed, server.Host.SwapTotal)
case "disk": case "disk":
src = uint64(server.State.DiskUsed / server.Host.DiskTotal * 100) src = percentage(server.State.DiskUsed, server.Host.DiskTotal)
case "net_in_speed": case "net_in_speed":
src = server.State.NetInSpeed src = server.State.NetInSpeed
case "net_out_speed": case "net_out_speed":