From dcadedf83b219755994af123e2ee0ec49db85445 Mon Sep 17 00:00:00 2001
From: George Dunlap <george.dunlap@xxxxxxxxxx>
Date: Thu, 29 Dec 2016 19:54:10 +0000
Subject: [PATCH 4/7] golang/xenlight: Implement libxl_get_gomainfinfo and
 libxl_domain_unpause

Signed-off-by: George Dunlap <george.dunlap@xxxxxxxxxx>
---
 tools/golang/xenlight/xenlight.go | 91 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)

diff --git a/tools/golang/xenlight/xenlight.go b/tools/golang/xenlight/xenlight.go
index 05604c7..96a6952 100644
--- a/tools/golang/xenlight/xenlight.go
+++ b/tools/golang/xenlight/xenlight.go
@@ -124,6 +124,12 @@ func createError(method string, cerrNum C.int) (err error) {
 /*
  * Types: Builtins
  */
+type Domid uint32
+
+type MemKB uint64
+
+type Uuid C.libxl_uuid
+
 type Context struct {
 	ctx *C.libxl_ctx
 }
@@ -189,6 +195,29 @@ type VersionInfo struct {
 	Build_id          string
 }
 
+type Dominfo struct {
+	Uuid       Uuid
+	Domid      Domid
+	Running    bool
+	Blocked    bool
+	Paused     bool
+	Shutdown   bool
+	Dying      bool
+	Never_stop bool
+
+	Shutdown_reason   int32 // FIXME shutdown_reason enumeration
+	Outstanding_memkb MemKB
+	Current_memkb     MemKB
+	Shared_memkb      MemKB
+	Paged_memkb       MemKB
+	Max_memkb         MemKB
+	Cpu_time          time.Duration
+	Vcpu_max_id       uint32
+	Vcpu_online       uint32
+	Cpupool           uint32
+	Domain_type       int32 //FIXME libxl_domain_type enumeration
+
+}
 
 /*
  * Context
@@ -361,3 +390,65 @@ func (Ctx *Context) GetVersionInfo() (info *VersionInfo, err error) {
 
 	return
 }
+
+//int libxl_domain_info(libxl_ctx*, libxl_dominfo *info_r, uint32_t domid);
+func (Ctx *Context) DomainInfo(Id Domid) (di *Dominfo, err error) {
+	err = Ctx.CheckOpen()
+	if err != nil {
+		return
+	}
+
+	var cdi C.libxl_dominfo
+
+	ret := C.libxl_domain_info(Ctx.ctx, unsafe.Pointer(&cdi), C.uint32_t(Id))
+
+	// FIXME: proper error
+	if ret != 0 {
+		err = createError("libxl_domain_info failed: ", ret)
+		return
+	}
+
+	// We could consider having this boilerplate generated by the
+	// idl, in a function like this:
+	//
+	// di = translateCdomaininfoToGoDomaininfo(cdi)
+	di = &Dominfo{}
+	di.Uuid = Uuid(cdi.uuid)
+	di.Domid = Domid(cdi.domid)
+	di.Running = bool(cdi.running)
+	di.Blocked = bool(cdi.blocked)
+	di.Paused = bool(cdi.paused)
+	di.Shutdown = bool(cdi.shutdown)
+	di.Dying = bool(cdi.dying)
+	di.Never_stop = bool(cdi.never_stop)
+	di.Shutdown_reason = int32(cdi.shutdown_reason)
+	di.Outstanding_memkb = MemKB(cdi.outstanding_memkb)
+	di.Current_memkb = MemKB(cdi.current_memkb)
+	di.Shared_memkb = MemKB(cdi.shared_memkb)
+	di.Paged_memkb = MemKB(cdi.paged_memkb)
+	di.Max_memkb = MemKB(cdi.max_memkb)
+	di.Cpu_time = time.Duration(cdi.cpu_time)
+	di.Vcpu_max_id = uint32(cdi.vcpu_max_id)
+	di.Vcpu_online = uint32(cdi.vcpu_online)
+	di.Cpupool = uint32(cdi.cpupool)
+	di.Domain_type = int32(cdi.domain_type)
+
+	return
+}
+
+//int libxl_domain_unpause(libxl_ctx *ctx, uint32_t domid);
+func (Ctx *Context) DomainUnpause(Id Domid) (err error) {
+	err = Ctx.CheckOpen()
+	if err != nil {
+		return
+	}
+
+	ret := C.libxl_domain_unpause(Ctx.ctx, C.uint32_t(Id))
+
+	if ret != 0 {
+		//FIXME: proper error
+		err = createError("libxl_domain_unpause failed: ", ret)
+	}
+	return
+}
+
-- 
2.1.4