blob: 122160bdaf2b56ee2f846ec6e465357c62c6ac6b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
//go:build linux || freebsd
// +build linux freebsd
package libpod
import (
"fmt"
"github.com/containers/podman/v4/libpod/define"
)
// GetContainerStats gets the running stats for a given container.
// The previousStats is used to correctly calculate cpu percentages. You
// should pass nil if there is no previous stat for this container.
func (c *Container) GetContainerStats(previousStats *define.ContainerStats) (*define.ContainerStats, error) {
stats := new(define.ContainerStats)
stats.ContainerID = c.ID()
stats.Name = c.Name()
if c.config.NoCgroups {
return nil, fmt.Errorf("cannot run top on container %s as it did not create a cgroup: %w", c.ID(), define.ErrNoCgroups)
}
if !c.batched {
c.lock.Lock()
defer c.lock.Unlock()
if err := c.syncContainer(); err != nil {
return stats, err
}
}
// returns stats with the fields' default values respective of their type
if c.state.State != define.ContainerStateRunning && c.state.State != define.ContainerStatePaused {
return stats, nil
}
if previousStats == nil {
previousStats = &define.ContainerStats{
// if we have no prev stats use the container start time as prev time
// otherwise we cannot correctly calculate the CPU percentage
SystemNano: uint64(c.state.StartedTime.UnixNano()),
}
}
if err := c.getPlatformContainerStats(stats, previousStats); err != nil {
return nil, err
}
return stats, nil
}
|
