3eef755b3b
This tag of hcsshim brings in a couple welcome features/improvements. One being exposing a way to query for hns endpoint statistics (Packets received/sent etc.). This tag also contains some optimizations for querying whether a certain HCN feature is supported, which is a common workflow in kube-proxy on Windows. The first result from querying HCN is now cached so further calls can skip the hcn query as well as the version range parsing that was performed. This also gets rid of some redundant logs that used to hit everytime the version range parsing occurred. The Go-winio dep bump, and all of the ctrd deps are transitive only. Nothing new is needed/intended to be used. Signed-off-by: Daniel Canter <dcanter@microsoft.com>
611 lines
22 KiB
Go
611 lines
22 KiB
Go
package vmcompute
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import (
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gcontext "context"
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"syscall"
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"time"
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"github.com/Microsoft/hcsshim/internal/interop"
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"github.com/Microsoft/hcsshim/internal/log"
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"github.com/Microsoft/hcsshim/internal/logfields"
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"github.com/Microsoft/hcsshim/internal/oc"
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"github.com/Microsoft/hcsshim/internal/timeout"
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"go.opencensus.io/trace"
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)
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//go:generate go run ../../mksyscall_windows.go -output zsyscall_windows.go vmcompute.go
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//sys hcsEnumerateComputeSystems(query string, computeSystems **uint16, result **uint16) (hr error) = vmcompute.HcsEnumerateComputeSystems?
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//sys hcsCreateComputeSystem(id string, configuration string, identity syscall.Handle, computeSystem *HcsSystem, result **uint16) (hr error) = vmcompute.HcsCreateComputeSystem?
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//sys hcsOpenComputeSystem(id string, computeSystem *HcsSystem, result **uint16) (hr error) = vmcompute.HcsOpenComputeSystem?
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//sys hcsCloseComputeSystem(computeSystem HcsSystem) (hr error) = vmcompute.HcsCloseComputeSystem?
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//sys hcsStartComputeSystem(computeSystem HcsSystem, options string, result **uint16) (hr error) = vmcompute.HcsStartComputeSystem?
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//sys hcsShutdownComputeSystem(computeSystem HcsSystem, options string, result **uint16) (hr error) = vmcompute.HcsShutdownComputeSystem?
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//sys hcsTerminateComputeSystem(computeSystem HcsSystem, options string, result **uint16) (hr error) = vmcompute.HcsTerminateComputeSystem?
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//sys hcsPauseComputeSystem(computeSystem HcsSystem, options string, result **uint16) (hr error) = vmcompute.HcsPauseComputeSystem?
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//sys hcsResumeComputeSystem(computeSystem HcsSystem, options string, result **uint16) (hr error) = vmcompute.HcsResumeComputeSystem?
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//sys hcsGetComputeSystemProperties(computeSystem HcsSystem, propertyQuery string, properties **uint16, result **uint16) (hr error) = vmcompute.HcsGetComputeSystemProperties?
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//sys hcsModifyComputeSystem(computeSystem HcsSystem, configuration string, result **uint16) (hr error) = vmcompute.HcsModifyComputeSystem?
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//sys hcsModifyServiceSettings(settings string, result **uint16) (hr error) = vmcompute.HcsModifyServiceSettings?
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//sys hcsRegisterComputeSystemCallback(computeSystem HcsSystem, callback uintptr, context uintptr, callbackHandle *HcsCallback) (hr error) = vmcompute.HcsRegisterComputeSystemCallback?
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//sys hcsUnregisterComputeSystemCallback(callbackHandle HcsCallback) (hr error) = vmcompute.HcsUnregisterComputeSystemCallback?
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//sys hcsSaveComputeSystem(computeSystem HcsSystem, options string, result **uint16) (hr error) = vmcompute.HcsSaveComputeSystem?
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//sys hcsCreateProcess(computeSystem HcsSystem, processParameters string, processInformation *HcsProcessInformation, process *HcsProcess, result **uint16) (hr error) = vmcompute.HcsCreateProcess?
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//sys hcsOpenProcess(computeSystem HcsSystem, pid uint32, process *HcsProcess, result **uint16) (hr error) = vmcompute.HcsOpenProcess?
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//sys hcsCloseProcess(process HcsProcess) (hr error) = vmcompute.HcsCloseProcess?
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//sys hcsTerminateProcess(process HcsProcess, result **uint16) (hr error) = vmcompute.HcsTerminateProcess?
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//sys hcsSignalProcess(process HcsProcess, options string, result **uint16) (hr error) = vmcompute.HcsSignalProcess?
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//sys hcsGetProcessInfo(process HcsProcess, processInformation *HcsProcessInformation, result **uint16) (hr error) = vmcompute.HcsGetProcessInfo?
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//sys hcsGetProcessProperties(process HcsProcess, processProperties **uint16, result **uint16) (hr error) = vmcompute.HcsGetProcessProperties?
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//sys hcsModifyProcess(process HcsProcess, settings string, result **uint16) (hr error) = vmcompute.HcsModifyProcess?
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//sys hcsGetServiceProperties(propertyQuery string, properties **uint16, result **uint16) (hr error) = vmcompute.HcsGetServiceProperties?
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//sys hcsRegisterProcessCallback(process HcsProcess, callback uintptr, context uintptr, callbackHandle *HcsCallback) (hr error) = vmcompute.HcsRegisterProcessCallback?
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//sys hcsUnregisterProcessCallback(callbackHandle HcsCallback) (hr error) = vmcompute.HcsUnregisterProcessCallback?
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// errVmcomputeOperationPending is an error encountered when the operation is being completed asynchronously
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const errVmcomputeOperationPending = syscall.Errno(0xC0370103)
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// HcsSystem is the handle associated with a created compute system.
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type HcsSystem syscall.Handle
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// HcsProcess is the handle associated with a created process in a compute
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// system.
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type HcsProcess syscall.Handle
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// HcsCallback is the handle associated with the function to call when events
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// occur.
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type HcsCallback syscall.Handle
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// HcsProcessInformation is the structure used when creating or getting process
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// info.
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type HcsProcessInformation struct {
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// ProcessId is the pid of the created process.
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ProcessId uint32
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reserved uint32 //nolint:structcheck
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// StdInput is the handle associated with the stdin of the process.
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StdInput syscall.Handle
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// StdOutput is the handle associated with the stdout of the process.
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StdOutput syscall.Handle
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// StdError is the handle associated with the stderr of the process.
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StdError syscall.Handle
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}
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func execute(ctx gcontext.Context, timeout time.Duration, f func() error) error {
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if timeout > 0 {
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var cancel gcontext.CancelFunc
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ctx, cancel = gcontext.WithTimeout(ctx, timeout)
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defer cancel()
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}
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done := make(chan error, 1)
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go func() {
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done <- f()
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}()
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select {
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case <-ctx.Done():
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if ctx.Err() == gcontext.DeadlineExceeded {
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log.G(ctx).WithField(logfields.Timeout, timeout).
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Warning("Syscall did not complete within operation timeout. This may indicate a platform issue. If it appears to be making no forward progress, obtain the stacks and see if there is a syscall stuck in the platform API for a significant length of time.")
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}
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return ctx.Err()
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case err := <-done:
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return err
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}
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}
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func HcsEnumerateComputeSystems(ctx gcontext.Context, query string) (computeSystems, result string, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsEnumerateComputeSystems")
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defer span.End()
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defer func() {
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if result != "" {
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span.AddAttributes(trace.StringAttribute("result", result))
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}
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oc.SetSpanStatus(span, hr)
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}()
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span.AddAttributes(trace.StringAttribute("query", query))
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return computeSystems, result, execute(ctx, timeout.SyscallWatcher, func() error {
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var (
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computeSystemsp *uint16
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resultp *uint16
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)
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err := hcsEnumerateComputeSystems(query, &computeSystemsp, &resultp)
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if computeSystemsp != nil {
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computeSystems = interop.ConvertAndFreeCoTaskMemString(computeSystemsp)
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}
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if resultp != nil {
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result = interop.ConvertAndFreeCoTaskMemString(resultp)
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}
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return err
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})
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}
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func HcsCreateComputeSystem(ctx gcontext.Context, id string, configuration string, identity syscall.Handle) (computeSystem HcsSystem, result string, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsCreateComputeSystem")
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defer span.End()
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defer func() {
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if result != "" {
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span.AddAttributes(trace.StringAttribute("result", result))
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}
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if hr != errVmcomputeOperationPending {
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oc.SetSpanStatus(span, hr)
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}
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}()
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span.AddAttributes(
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trace.StringAttribute("id", id),
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trace.StringAttribute("configuration", configuration))
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return computeSystem, result, execute(ctx, timeout.SystemCreate, func() error {
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var resultp *uint16
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err := hcsCreateComputeSystem(id, configuration, identity, &computeSystem, &resultp)
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if resultp != nil {
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result = interop.ConvertAndFreeCoTaskMemString(resultp)
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}
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return err
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})
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}
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func HcsOpenComputeSystem(ctx gcontext.Context, id string) (computeSystem HcsSystem, result string, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsOpenComputeSystem")
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defer span.End()
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defer func() {
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if result != "" {
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span.AddAttributes(trace.StringAttribute("result", result))
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}
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oc.SetSpanStatus(span, hr)
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}()
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return computeSystem, result, execute(ctx, timeout.SyscallWatcher, func() error {
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var resultp *uint16
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err := hcsOpenComputeSystem(id, &computeSystem, &resultp)
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if resultp != nil {
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result = interop.ConvertAndFreeCoTaskMemString(resultp)
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}
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return err
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})
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}
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func HcsCloseComputeSystem(ctx gcontext.Context, computeSystem HcsSystem) (hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsCloseComputeSystem")
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defer span.End()
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defer func() { oc.SetSpanStatus(span, hr) }()
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return execute(ctx, timeout.SyscallWatcher, func() error {
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return hcsCloseComputeSystem(computeSystem)
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})
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}
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func HcsStartComputeSystem(ctx gcontext.Context, computeSystem HcsSystem, options string) (result string, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsStartComputeSystem")
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defer span.End()
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defer func() {
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if result != "" {
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span.AddAttributes(trace.StringAttribute("result", result))
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}
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if hr != errVmcomputeOperationPending {
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oc.SetSpanStatus(span, hr)
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}
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}()
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span.AddAttributes(trace.StringAttribute("options", options))
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return result, execute(ctx, timeout.SystemStart, func() error {
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var resultp *uint16
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err := hcsStartComputeSystem(computeSystem, options, &resultp)
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if resultp != nil {
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result = interop.ConvertAndFreeCoTaskMemString(resultp)
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}
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return err
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})
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}
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func HcsShutdownComputeSystem(ctx gcontext.Context, computeSystem HcsSystem, options string) (result string, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsShutdownComputeSystem")
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defer span.End()
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defer func() {
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if result != "" {
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span.AddAttributes(trace.StringAttribute("result", result))
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}
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if hr != errVmcomputeOperationPending {
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oc.SetSpanStatus(span, hr)
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}
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}()
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span.AddAttributes(trace.StringAttribute("options", options))
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return result, execute(ctx, timeout.SyscallWatcher, func() error {
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var resultp *uint16
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err := hcsShutdownComputeSystem(computeSystem, options, &resultp)
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if resultp != nil {
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result = interop.ConvertAndFreeCoTaskMemString(resultp)
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}
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return err
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})
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}
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func HcsTerminateComputeSystem(ctx gcontext.Context, computeSystem HcsSystem, options string) (result string, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsTerminateComputeSystem")
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defer span.End()
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defer func() {
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if result != "" {
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span.AddAttributes(trace.StringAttribute("result", result))
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}
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if hr != errVmcomputeOperationPending {
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oc.SetSpanStatus(span, hr)
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}
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}()
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span.AddAttributes(trace.StringAttribute("options", options))
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return result, execute(ctx, timeout.SyscallWatcher, func() error {
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var resultp *uint16
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err := hcsTerminateComputeSystem(computeSystem, options, &resultp)
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if resultp != nil {
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result = interop.ConvertAndFreeCoTaskMemString(resultp)
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}
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return err
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})
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}
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func HcsPauseComputeSystem(ctx gcontext.Context, computeSystem HcsSystem, options string) (result string, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsPauseComputeSystem")
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defer span.End()
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defer func() {
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if result != "" {
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span.AddAttributes(trace.StringAttribute("result", result))
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}
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if hr != errVmcomputeOperationPending {
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oc.SetSpanStatus(span, hr)
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}
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}()
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span.AddAttributes(trace.StringAttribute("options", options))
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return result, execute(ctx, timeout.SystemPause, func() error {
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var resultp *uint16
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err := hcsPauseComputeSystem(computeSystem, options, &resultp)
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if resultp != nil {
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result = interop.ConvertAndFreeCoTaskMemString(resultp)
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}
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return err
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})
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}
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func HcsResumeComputeSystem(ctx gcontext.Context, computeSystem HcsSystem, options string) (result string, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsResumeComputeSystem")
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defer span.End()
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defer func() {
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if result != "" {
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span.AddAttributes(trace.StringAttribute("result", result))
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}
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if hr != errVmcomputeOperationPending {
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oc.SetSpanStatus(span, hr)
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}
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}()
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span.AddAttributes(trace.StringAttribute("options", options))
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return result, execute(ctx, timeout.SystemResume, func() error {
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var resultp *uint16
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err := hcsResumeComputeSystem(computeSystem, options, &resultp)
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if resultp != nil {
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result = interop.ConvertAndFreeCoTaskMemString(resultp)
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}
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return err
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})
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}
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func HcsGetComputeSystemProperties(ctx gcontext.Context, computeSystem HcsSystem, propertyQuery string) (properties, result string, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsGetComputeSystemProperties")
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defer span.End()
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defer func() {
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if result != "" {
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span.AddAttributes(trace.StringAttribute("result", result))
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}
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oc.SetSpanStatus(span, hr)
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}()
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span.AddAttributes(trace.StringAttribute("propertyQuery", propertyQuery))
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return properties, result, execute(ctx, timeout.SyscallWatcher, func() error {
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var (
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propertiesp *uint16
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resultp *uint16
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)
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err := hcsGetComputeSystemProperties(computeSystem, propertyQuery, &propertiesp, &resultp)
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if propertiesp != nil {
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properties = interop.ConvertAndFreeCoTaskMemString(propertiesp)
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}
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if resultp != nil {
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result = interop.ConvertAndFreeCoTaskMemString(resultp)
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}
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return err
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})
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}
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func HcsModifyComputeSystem(ctx gcontext.Context, computeSystem HcsSystem, configuration string) (result string, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsModifyComputeSystem")
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defer span.End()
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defer func() {
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if result != "" {
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span.AddAttributes(trace.StringAttribute("result", result))
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}
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oc.SetSpanStatus(span, hr)
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}()
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span.AddAttributes(trace.StringAttribute("configuration", configuration))
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return result, execute(ctx, timeout.SyscallWatcher, func() error {
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var resultp *uint16
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err := hcsModifyComputeSystem(computeSystem, configuration, &resultp)
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if resultp != nil {
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result = interop.ConvertAndFreeCoTaskMemString(resultp)
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}
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return err
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})
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}
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func HcsModifyServiceSettings(ctx gcontext.Context, settings string) (result string, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsModifyServiceSettings")
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defer span.End()
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defer func() {
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if result != "" {
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span.AddAttributes(trace.StringAttribute("result", result))
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}
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oc.SetSpanStatus(span, hr)
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}()
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span.AddAttributes(trace.StringAttribute("settings", settings))
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return result, execute(ctx, timeout.SyscallWatcher, func() error {
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var resultp *uint16
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err := hcsModifyServiceSettings(settings, &resultp)
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if resultp != nil {
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result = interop.ConvertAndFreeCoTaskMemString(resultp)
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}
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return err
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})
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}
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func HcsRegisterComputeSystemCallback(ctx gcontext.Context, computeSystem HcsSystem, callback uintptr, context uintptr) (callbackHandle HcsCallback, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsRegisterComputeSystemCallback")
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defer span.End()
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defer func() { oc.SetSpanStatus(span, hr) }()
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return callbackHandle, execute(ctx, timeout.SyscallWatcher, func() error {
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return hcsRegisterComputeSystemCallback(computeSystem, callback, context, &callbackHandle)
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})
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}
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func HcsUnregisterComputeSystemCallback(ctx gcontext.Context, callbackHandle HcsCallback) (hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsUnregisterComputeSystemCallback")
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defer span.End()
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defer func() { oc.SetSpanStatus(span, hr) }()
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return execute(ctx, timeout.SyscallWatcher, func() error {
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return hcsUnregisterComputeSystemCallback(callbackHandle)
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})
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}
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func HcsCreateProcess(ctx gcontext.Context, computeSystem HcsSystem, processParameters string) (processInformation HcsProcessInformation, process HcsProcess, result string, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsCreateProcess")
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defer span.End()
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defer func() {
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if result != "" {
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span.AddAttributes(trace.StringAttribute("result", result))
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}
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oc.SetSpanStatus(span, hr)
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}()
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span.AddAttributes(trace.StringAttribute("processParameters", processParameters))
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return processInformation, process, result, execute(ctx, timeout.SyscallWatcher, func() error {
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var resultp *uint16
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err := hcsCreateProcess(computeSystem, processParameters, &processInformation, &process, &resultp)
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if resultp != nil {
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result = interop.ConvertAndFreeCoTaskMemString(resultp)
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}
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return err
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})
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}
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func HcsOpenProcess(ctx gcontext.Context, computeSystem HcsSystem, pid uint32) (process HcsProcess, result string, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsOpenProcess")
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defer span.End()
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defer func() {
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if result != "" {
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span.AddAttributes(trace.StringAttribute("result", result))
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}
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oc.SetSpanStatus(span, hr)
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}()
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span.AddAttributes(trace.Int64Attribute("pid", int64(pid)))
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return process, result, execute(ctx, timeout.SyscallWatcher, func() error {
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var resultp *uint16
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err := hcsOpenProcess(computeSystem, pid, &process, &resultp)
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if resultp != nil {
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result = interop.ConvertAndFreeCoTaskMemString(resultp)
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}
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return err
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})
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}
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func HcsCloseProcess(ctx gcontext.Context, process HcsProcess) (hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsCloseProcess")
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defer span.End()
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defer func() { oc.SetSpanStatus(span, hr) }()
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return execute(ctx, timeout.SyscallWatcher, func() error {
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return hcsCloseProcess(process)
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})
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}
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func HcsTerminateProcess(ctx gcontext.Context, process HcsProcess) (result string, hr error) {
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ctx, span := trace.StartSpan(ctx, "HcsTerminateProcess")
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defer span.End()
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defer func() {
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if result != "" {
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span.AddAttributes(trace.StringAttribute("result", result))
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}
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oc.SetSpanStatus(span, hr)
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}()
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return result, execute(ctx, timeout.SyscallWatcher, func() error {
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var resultp *uint16
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err := hcsTerminateProcess(process, &resultp)
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if resultp != nil {
|
|
result = interop.ConvertAndFreeCoTaskMemString(resultp)
|
|
}
|
|
return err
|
|
})
|
|
}
|
|
|
|
func HcsSignalProcess(ctx gcontext.Context, process HcsProcess, options string) (result string, hr error) {
|
|
ctx, span := trace.StartSpan(ctx, "HcsSignalProcess")
|
|
defer span.End()
|
|
defer func() {
|
|
if result != "" {
|
|
span.AddAttributes(trace.StringAttribute("result", result))
|
|
}
|
|
oc.SetSpanStatus(span, hr)
|
|
}()
|
|
span.AddAttributes(trace.StringAttribute("options", options))
|
|
|
|
return result, execute(ctx, timeout.SyscallWatcher, func() error {
|
|
var resultp *uint16
|
|
err := hcsSignalProcess(process, options, &resultp)
|
|
if resultp != nil {
|
|
result = interop.ConvertAndFreeCoTaskMemString(resultp)
|
|
}
|
|
return err
|
|
})
|
|
}
|
|
|
|
func HcsGetProcessInfo(ctx gcontext.Context, process HcsProcess) (processInformation HcsProcessInformation, result string, hr error) {
|
|
ctx, span := trace.StartSpan(ctx, "HcsGetProcessInfo")
|
|
defer span.End()
|
|
defer func() {
|
|
if result != "" {
|
|
span.AddAttributes(trace.StringAttribute("result", result))
|
|
}
|
|
oc.SetSpanStatus(span, hr)
|
|
}()
|
|
|
|
return processInformation, result, execute(ctx, timeout.SyscallWatcher, func() error {
|
|
var resultp *uint16
|
|
err := hcsGetProcessInfo(process, &processInformation, &resultp)
|
|
if resultp != nil {
|
|
result = interop.ConvertAndFreeCoTaskMemString(resultp)
|
|
}
|
|
return err
|
|
})
|
|
}
|
|
|
|
func HcsGetProcessProperties(ctx gcontext.Context, process HcsProcess) (processProperties, result string, hr error) {
|
|
ctx, span := trace.StartSpan(ctx, "HcsGetProcessProperties")
|
|
defer span.End()
|
|
defer func() {
|
|
if result != "" {
|
|
span.AddAttributes(trace.StringAttribute("result", result))
|
|
}
|
|
oc.SetSpanStatus(span, hr)
|
|
}()
|
|
|
|
return processProperties, result, execute(ctx, timeout.SyscallWatcher, func() error {
|
|
var (
|
|
processPropertiesp *uint16
|
|
resultp *uint16
|
|
)
|
|
err := hcsGetProcessProperties(process, &processPropertiesp, &resultp)
|
|
if processPropertiesp != nil {
|
|
processProperties = interop.ConvertAndFreeCoTaskMemString(processPropertiesp)
|
|
}
|
|
if resultp != nil {
|
|
result = interop.ConvertAndFreeCoTaskMemString(resultp)
|
|
}
|
|
return err
|
|
})
|
|
}
|
|
|
|
func HcsModifyProcess(ctx gcontext.Context, process HcsProcess, settings string) (result string, hr error) {
|
|
ctx, span := trace.StartSpan(ctx, "HcsModifyProcess")
|
|
defer span.End()
|
|
defer func() {
|
|
if result != "" {
|
|
span.AddAttributes(trace.StringAttribute("result", result))
|
|
}
|
|
oc.SetSpanStatus(span, hr)
|
|
}()
|
|
span.AddAttributes(trace.StringAttribute("settings", settings))
|
|
|
|
return result, execute(ctx, timeout.SyscallWatcher, func() error {
|
|
var resultp *uint16
|
|
err := hcsModifyProcess(process, settings, &resultp)
|
|
if resultp != nil {
|
|
result = interop.ConvertAndFreeCoTaskMemString(resultp)
|
|
}
|
|
return err
|
|
})
|
|
}
|
|
|
|
func HcsGetServiceProperties(ctx gcontext.Context, propertyQuery string) (properties, result string, hr error) {
|
|
ctx, span := trace.StartSpan(ctx, "HcsGetServiceProperties")
|
|
defer span.End()
|
|
defer func() {
|
|
if result != "" {
|
|
span.AddAttributes(trace.StringAttribute("result", result))
|
|
}
|
|
oc.SetSpanStatus(span, hr)
|
|
}()
|
|
span.AddAttributes(trace.StringAttribute("propertyQuery", propertyQuery))
|
|
|
|
return properties, result, execute(ctx, timeout.SyscallWatcher, func() error {
|
|
var (
|
|
propertiesp *uint16
|
|
resultp *uint16
|
|
)
|
|
err := hcsGetServiceProperties(propertyQuery, &propertiesp, &resultp)
|
|
if propertiesp != nil {
|
|
properties = interop.ConvertAndFreeCoTaskMemString(propertiesp)
|
|
}
|
|
if resultp != nil {
|
|
result = interop.ConvertAndFreeCoTaskMemString(resultp)
|
|
}
|
|
return err
|
|
})
|
|
}
|
|
|
|
func HcsRegisterProcessCallback(ctx gcontext.Context, process HcsProcess, callback uintptr, context uintptr) (callbackHandle HcsCallback, hr error) {
|
|
ctx, span := trace.StartSpan(ctx, "HcsRegisterProcessCallback")
|
|
defer span.End()
|
|
defer func() { oc.SetSpanStatus(span, hr) }()
|
|
|
|
return callbackHandle, execute(ctx, timeout.SyscallWatcher, func() error {
|
|
return hcsRegisterProcessCallback(process, callback, context, &callbackHandle)
|
|
})
|
|
}
|
|
|
|
func HcsUnregisterProcessCallback(ctx gcontext.Context, callbackHandle HcsCallback) (hr error) {
|
|
ctx, span := trace.StartSpan(ctx, "HcsUnregisterProcessCallback")
|
|
defer span.End()
|
|
defer func() { oc.SetSpanStatus(span, hr) }()
|
|
|
|
return execute(ctx, timeout.SyscallWatcher, func() error {
|
|
return hcsUnregisterProcessCallback(callbackHandle)
|
|
})
|
|
}
|
|
|
|
func HcsSaveComputeSystem(ctx gcontext.Context, computeSystem HcsSystem, options string) (result string, hr error) {
|
|
ctx, span := trace.StartSpan(ctx, "HcsSaveComputeSystem")
|
|
defer span.End()
|
|
defer func() {
|
|
if result != "" {
|
|
span.AddAttributes(trace.StringAttribute("result", result))
|
|
}
|
|
if hr != errVmcomputeOperationPending {
|
|
oc.SetSpanStatus(span, hr)
|
|
}
|
|
}()
|
|
|
|
return result, execute(ctx, timeout.SyscallWatcher, func() error {
|
|
var resultp *uint16
|
|
err := hcsSaveComputeSystem(computeSystem, options, &resultp)
|
|
if resultp != nil {
|
|
result = interop.ConvertAndFreeCoTaskMemString(resultp)
|
|
}
|
|
return err
|
|
})
|
|
}
|