mirror of https://github.com/containers/podman.git
56 lines
1.5 KiB
Go
56 lines
1.5 KiB
Go
// +build linux
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package libpod
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import (
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"strconv"
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"strings"
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"github.com/containers/psgo"
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)
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// GetPodPidInformation returns process-related data of all processes in
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// the pod. The output data can be controlled via the `descriptors`
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// argument which expects format descriptors and supports all AIXformat
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// descriptors of ps (1) plus some additional ones to for instance inspect the
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// set of effective capabilities. Eeach element in the returned string slice
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// is a tab-separated string.
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//
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// For more details, please refer to github.com/containers/psgo.
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func (p *Pod) GetPodPidInformation(descriptors []string) ([]string, error) {
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p.lock.Lock()
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defer p.lock.Unlock()
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pids := make([]string, 0)
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ctrsInPod, err := p.allContainers()
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if err != nil {
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return nil, err
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}
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for _, c := range ctrsInPod {
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c.lock.Lock()
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if err := c.syncContainer(); err != nil {
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c.lock.Unlock()
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return nil, err
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}
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if c.state.State == ContainerStateRunning {
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pid := strconv.Itoa(c.state.PID)
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pids = append(pids, pid)
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}
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c.lock.Unlock()
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}
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// TODO: psgo returns a [][]string to give users the ability to apply
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// filters on the data. We need to change the API here and the
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// varlink API to return a [][]string if we want to make use of
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// filtering.
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output, err := psgo.JoinNamespaceAndProcessInfoByPids(pids, descriptors)
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if err != nil {
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return nil, err
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}
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res := []string{}
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for _, out := range output {
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res = append(res, strings.Join(out, "\t"))
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}
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return res, nil
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}
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