adds HCS live migration APIs

internal/computecore/computecore.go

@@ -94,34 +94,6 @@ import (
 // errVmcomputeOperationPending is an error encountered when the operation is being completed asynchronously
 const errVmcomputeOperationPending = syscall.Errno(0xC0370103)
 
-// HcsSystem is the handle associated with a created compute system.
-type HcsSystem syscall.Handle
-
-// HcsProcess is the handle associated with a created process in a compute
-// system.
-type HcsProcess syscall.Handle
-
-// HcsOperation is the handle associated with an operation on a compute system.
-type HcsOperation syscall.Handle
-
-// HcsCallback is the handle associated with the function to call when events
-// occur.
-type HcsCallback syscall.Handle
-
-// HcsProcessInformation is the structure used when creating or getting process
-// info.
-type HcsProcessInformation struct {
-	// ProcessID is the pid of the created process.
-	ProcessID uint32
-	_         uint32 // reserved padding
-	// StdInput is the handle associated with the stdin of the process.
-	StdInput syscall.Handle
-	// StdOutput is the handle associated with the stdout of the process.
-	StdOutput syscall.Handle
-	// StdError is the handle associated with the stderr of the process.
-	StdError syscall.Handle
-}
-
 func execute(ctx gcontext.Context, timeout time.Duration, f func() error) error {
 	now := time.Now()
 	if timeout > 0 {

internal/computecore/types.go

@@ -0,0 +1,103 @@
+//go:build windows
+
+package computecore
+
+import (
+	"fmt"
+	"syscall"
+)
+
+// HcsSystem is the handle associated with a created compute system.
+type HcsSystem syscall.Handle
+
+// HcsProcess is the handle associated with a created process in a compute system.
+type HcsProcess syscall.Handle
+
+// HcsOperation is the handle associated with an operation on a compute system.
+type HcsOperation syscall.Handle
+
+// HcsCallback is the handle associated with the function to call when events occur.
+type HcsCallback syscall.Handle
+
+// HcsProcessInformation is the structure used when creating or getting process info.
+type HcsProcessInformation struct {
+	ProcessID uint32
+	_         uint32 // reserved padding
+	StdInput  syscall.Handle
+	StdOutput syscall.Handle
+	StdError  syscall.Handle
+}
+
+// HcsResourceType specifies the type of resource to add to an operation.
+const (
+	HcsResourceTypeNone      uint32 = 0
+	HcsResourceTypeFile      uint32 = 1
+	HcsResourceTypeJob       uint32 = 2
+	HcsResourceTypeComObject uint32 = 3
+	HcsResourceTypeSocket    uint32 = 4
+)
+
+// HcsEventType represents the type of event received from HCS.
+type HcsEventType uint32
+
+const (
+	HcsEventTypeInvalid                           HcsEventType = 0x00000000
+	HcsEventTypeSystemExited                      HcsEventType = 0x00000001
+	HcsEventTypeSystemCrashInitiated              HcsEventType = 0x00000002
+	HcsEventTypeSystemCrashReport                 HcsEventType = 0x00000003
+	HcsEventTypeSystemRdpEnhancedModeStateChanged HcsEventType = 0x00000004
+	HcsEventTypeSystemSiloJobCreated              HcsEventType = 0x00000005
+	HcsEventTypeSystemGuestConnectionClosed       HcsEventType = 0x00000006
+	HcsEventTypeProcessExited                     HcsEventType = 0x00010000
+	HcsEventTypeOperationCallback                 HcsEventType = 0x01000000
+	HcsEventTypeServiceDisconnect                 HcsEventType = 0x02000000
+	HcsEventTypeGroupVMLifecycle                  HcsEventType = 0x80000002
+	HcsEventTypeGroupLiveMigration                HcsEventType = 0x80000003
+	HcsEventTypeGroupOperationInfo                HcsEventType = 0xC0000001
+)
+
+func (t HcsEventType) String() string {
+	switch t {
+	case HcsEventTypeInvalid:
+		return "Invalid"
+	case HcsEventTypeSystemExited:
+		return "SystemExited"
+	case HcsEventTypeSystemCrashInitiated:
+		return "SystemCrashInitiated"
+	case HcsEventTypeSystemCrashReport:
+		return "SystemCrashReport"
+	case HcsEventTypeSystemRdpEnhancedModeStateChanged:
+		return "SystemRdpEnhancedModeStateChanged"
+	case HcsEventTypeSystemSiloJobCreated:
+		return "SystemSiloJobCreated"
+	case HcsEventTypeSystemGuestConnectionClosed:
+		return "SystemGuestConnectionClosed"
+	case HcsEventTypeProcessExited:
+		return "ProcessExited"
+	case HcsEventTypeOperationCallback:
+		return "OperationCallback"
+	case HcsEventTypeServiceDisconnect:
+		return "ServiceDisconnect"
+	case HcsEventTypeGroupVMLifecycle:
+		return "GroupVmLifecycle"
+	case HcsEventTypeGroupLiveMigration:
+		return "GroupLiveMigration"
+	case HcsEventTypeGroupOperationInfo:
+		return "GroupOperationInfo"
+	default:
+		return fmt.Sprintf("Unknown: 0x%08X", uint32(t))
+	}
+}
+
+// HcsEventOptions controls which event groups are enabled for a callback.
+const (
+	HcsEventOptionNone                      uint32 = 0
+	HcsEventOptionEnableOperationCallbacks  uint32 = 1
+	HcsEventOptionEnableLiveMigrationEvents uint32 = 4
+)
+
+// HcsEvent is the event structure passed to HCS_EVENT_CALLBACK.
+type HcsEvent struct {
+	Type      HcsEventType
+	EventData *uint16
+}