3ea09ba16a
* Refactor AllocDir to have a TaskDir struct per task. * Drivers expose filesystem isolation preference * Fix lxc mounting of `secrets/`
127 lines
3 KiB
Go
127 lines
3 KiB
Go
package structs
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// MemoryStats holds memory usage related stats
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type MemoryStats struct {
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RSS uint64
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Cache uint64
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Swap uint64
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MaxUsage uint64
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KernelUsage uint64
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KernelMaxUsage uint64
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// A list of fields whose values were actually sampled
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Measured []string
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}
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func (ms *MemoryStats) Add(other *MemoryStats) {
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ms.RSS += other.RSS
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ms.Cache += other.Cache
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ms.Swap += other.Swap
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ms.MaxUsage += other.MaxUsage
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ms.KernelUsage += other.KernelUsage
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ms.KernelMaxUsage += other.KernelMaxUsage
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ms.Measured = joinStringSet(ms.Measured, other.Measured)
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}
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// CpuStats holds cpu usage related stats
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type CpuStats struct {
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SystemMode float64
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UserMode float64
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TotalTicks float64
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ThrottledPeriods uint64
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ThrottledTime uint64
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Percent float64
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// A list of fields whose values were actually sampled
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Measured []string
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}
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func (cs *CpuStats) Add(other *CpuStats) {
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cs.SystemMode += other.SystemMode
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cs.UserMode += other.UserMode
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cs.TotalTicks += other.TotalTicks
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cs.ThrottledPeriods += other.ThrottledPeriods
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cs.ThrottledTime += other.ThrottledTime
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cs.Percent += other.Percent
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cs.Measured = joinStringSet(cs.Measured, other.Measured)
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}
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// ResourceUsage holds information related to cpu and memory stats
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type ResourceUsage struct {
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MemoryStats *MemoryStats
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CpuStats *CpuStats
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}
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func (ru *ResourceUsage) Add(other *ResourceUsage) {
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ru.MemoryStats.Add(other.MemoryStats)
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ru.CpuStats.Add(other.CpuStats)
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}
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// TaskResourceUsage holds aggregated resource usage of all processes in a Task
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// and the resource usage of the individual pids
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type TaskResourceUsage struct {
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ResourceUsage *ResourceUsage
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Timestamp int64
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Pids map[string]*ResourceUsage
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}
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// AllocResourceUsage holds the aggregated task resource usage of the
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// allocation.
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type AllocResourceUsage struct {
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// ResourceUsage is the summation of the task resources
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ResourceUsage *ResourceUsage
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// Tasks contains the resource usage of each task
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Tasks map[string]*TaskResourceUsage
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// The max timestamp of all the Tasks
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Timestamp int64
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}
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// joinStringSet takes two slices of strings and joins them
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func joinStringSet(s1, s2 []string) []string {
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lookup := make(map[string]struct{}, len(s1))
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j := make([]string, 0, len(s1))
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for _, s := range s1 {
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j = append(j, s)
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lookup[s] = struct{}{}
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}
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for _, s := range s2 {
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if _, ok := lookup[s]; !ok {
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j = append(j, s)
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}
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}
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return j
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}
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// FSIsolation is an enumeration to describe what kind of filesystem isolation
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// a driver supports.
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type FSIsolation int
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const (
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// FSIsolationNone means no isolation. The host filesystem is used.
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FSIsolationNone FSIsolation = 0
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// FSIsolationChroot means the driver will use a chroot on the host
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// filesystem.
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FSIsolationChroot FSIsolation = 1
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// FSIsolationImage means the driver uses an image.
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FSIsolationImage FSIsolation = 2
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)
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func (f FSIsolation) String() string {
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switch f {
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case 0:
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return "none"
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case 1:
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return "chroot"
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case 2:
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return "image"
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default:
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return "INVALID"
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}
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}
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