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sandbox: add stateful sandbox config

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When enabled, do not release in memory sandbox resources in VC APIs,
and callers are expected to call sandbox.Release() to release the in
memory resources.

Signed-off-by: Peng Tao <bergwolf@gmail.com>
This commit is contained in:
Peng Tao
2018-07-23 09:54:02 +08:00
parent 7a6f205970
commit d69fbcf17f
3 changed files with 51 additions and 21 deletions
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34
virtcontainers/api.go
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@@ -37,7 +37,7 @@ func SetLogger(logger logrus.FieldLogger) {
func CreateSandbox(sandboxConfig SandboxConfig, factory Factory) (VCSandbox, error) {
s, err := createSandboxFromConfig(sandboxConfig, factory)
if err == nil {
s.Release()
s.releaseStatelessSandbox()
}
return s, err
@@ -91,7 +91,7 @@ func DeleteSandbox(sandboxID string) (VCSandbox, error) {
if err != nil {
return nil, err
}
defer s.Release()
defer s.releaseStatelessSandbox()
// Delete it.
if err := s.Delete(); err != nil {
@@ -155,7 +155,7 @@ func StartSandbox(sandboxID string) (VCSandbox, error) {
if err != nil {
return nil, err
}
defer s.Release()
defer s.releaseStatelessSandbox()
return startSandbox(s)
}
@@ -193,7 +193,7 @@ func StopSandbox(sandboxID string) (VCSandbox, error) {
if err != nil {
return nil, err
}
defer s.Release()
defer s.releaseStatelessSandbox()
// Stop it.
err = s.stop()
@@ -221,7 +221,7 @@ func RunSandbox(sandboxConfig SandboxConfig, factory Factory) (VCSandbox, error)
if err != nil {
return nil, err
}
defer s.Release()
defer s.releaseStatelessSandbox()
lockFile, err := rwLockSandbox(s.id)
if err != nil {
@@ -280,7 +280,7 @@ func StatusSandbox(sandboxID string) (SandboxStatus, error) {
unlockSandbox(lockFile)
return SandboxStatus{}, err
}
defer s.Release()
defer s.releaseStatelessSandbox()
// We need to potentially wait for a separate container.stop() routine
// that needs to be terminated before we return from this function.
@@ -332,7 +332,7 @@ func CreateContainer(sandboxID string, containerConfig ContainerConfig) (VCSandb
if err != nil {
return nil, nil, err
}
defer s.Release()
defer s.releaseStatelessSandbox()
c, err := s.CreateContainer(containerConfig)
if err != nil {
@@ -364,7 +364,7 @@ func DeleteContainer(sandboxID, containerID string) (VCContainer, error) {
if err != nil {
return nil, err
}
defer s.Release()
defer s.releaseStatelessSandbox()
return s.DeleteContainer(containerID)
}
@@ -390,7 +390,7 @@ func StartContainer(sandboxID, containerID string) (VCContainer, error) {
if err != nil {
return nil, err
}
defer s.Release()
defer s.releaseStatelessSandbox()
c, err := s.StartContainer(containerID)
if err != nil {
@@ -421,7 +421,7 @@ func StopContainer(sandboxID, containerID string) (VCContainer, error) {
if err != nil {
return nil, err
}
defer s.Release()
defer s.releaseStatelessSandbox()
// Fetch the container.
c, err := s.findContainer(containerID)
@@ -459,7 +459,7 @@ func EnterContainer(sandboxID, containerID string, cmd Cmd) (VCSandbox, VCContai
if err != nil {
return nil, nil, nil, err
}
defer s.Release()
defer s.releaseStatelessSandbox()
c, process, err := s.EnterContainer(containerID, cmd)
if err != nil {
@@ -490,7 +490,7 @@ func StatusContainer(sandboxID, containerID string) (ContainerStatus, error) {
unlockSandbox(lockFile)
return ContainerStatus{}, err
}
defer s.Release()
defer s.releaseStatelessSandbox()
// We need to potentially wait for a separate container.stop() routine
// that needs to be terminated before we return from this function.
@@ -577,7 +577,7 @@ func KillContainer(sandboxID, containerID string, signal syscall.Signal, all boo
if err != nil {
return err
}
defer s.Release()
defer s.releaseStatelessSandbox()
// Fetch the container.
c, err := s.findContainer(containerID)
@@ -627,7 +627,7 @@ func ProcessListContainer(sandboxID, containerID string, options ProcessListOpti
if err != nil {
return nil, err
}
defer s.Release()
defer s.releaseStatelessSandbox()
// Fetch the container.
c, err := s.findContainer(containerID)
@@ -659,7 +659,7 @@ func UpdateContainer(sandboxID, containerID string, resources specs.LinuxResourc
if err != nil {
return err
}
defer s.Release()
defer s.releaseStatelessSandbox()
return s.UpdateContainer(containerID, resources)
}
@@ -685,7 +685,7 @@ func StatsContainer(sandboxID, containerID string) (ContainerStats, error) {
if err != nil {
return ContainerStats{}, err
}
defer s.Release()
defer s.releaseStatelessSandbox()
return s.StatsContainer(containerID)
}
@@ -709,7 +709,7 @@ func togglePauseContainer(sandboxID, containerID string, pause bool) error {
if err != nil {
return err
}
defer s.Release()
defer s.releaseStatelessSandbox()
// Fetch the container.
c, err := s.findContainer(containerID)