mirror of
https://github.com/containers/podman.git
synced 2026-05-31 11:57:19 -04:00
2cc3be7332
The podman module paths are moving from github.com/containers/podman to go.podman.io/podman. This will help with future mobility. Signed-off-by: Brent Baude <bbaude@redhat.com>
42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
//go:build !remote && (linux || freebsd)
|
|
|
|
package ctr
|
|
|
|
import (
|
|
"context"
|
|
|
|
"github.com/sirupsen/logrus"
|
|
"go.podman.io/podman/v6/libpod"
|
|
"go.podman.io/podman/v6/pkg/parallel"
|
|
)
|
|
|
|
// ContainerOp performs the given function on the given set of
|
|
// containers, using a number of parallel threads.
|
|
// If no error is returned, each container specified in ctrs will have an entry
|
|
// in the resulting map; containers with no error will be set to nil.
|
|
func ContainerOp(ctx context.Context, ctrs []*libpod.Container, applyFunc func(*libpod.Container) error) (map[*libpod.Container]error, error) {
|
|
// We could use a sync.Map but given Go's lack of generic I'd rather
|
|
// just use a lock on a normal map...
|
|
// The expectation is that most of the time is spent in applyFunc
|
|
// anyways.
|
|
|
|
errMap := make(map[*libpod.Container]<-chan error)
|
|
|
|
for _, ctr := range ctrs {
|
|
c := ctr
|
|
logrus.Debugf("Starting parallel job on container %s", c.ID())
|
|
errChan := parallel.Enqueue(ctx, func() error {
|
|
return applyFunc(c)
|
|
})
|
|
errMap[c] = errChan
|
|
}
|
|
|
|
finalErr := make(map[*libpod.Container]error)
|
|
for ctr, errChan := range errMap {
|
|
err := <-errChan
|
|
finalErr[ctr] = err
|
|
}
|
|
|
|
return finalErr, nil
|
|
}
|