Finished rework of context

context.go

@@ -195,10 +195,10 @@ func NewContext(db * badger.DB, log Logger, extra_nodes map[string]NodeLoadFunc,
   if err != nil {
     panic(err)
   }
-  /*err := ctx.RegisterNodeType("gql_thread", LoadGQLThread)
+  err = ctx.RegisterNodeType("gql_thread", LoadGQLThread)
   if err != nil {
     panic(err)
-  }*/
+  }
 
   for name, load_fn := range(extra_nodes) {
     err := ctx.RegisterNodeType(name, load_fn)

gql.go

@@ -344,17 +344,20 @@ func (thread * GQLThread) Serialize() ([]byte, error) {
   return json.MarshalIndent(&thread_json, "", "  ")
 }
 
+func (thread * GQLThread) DeserializeInfo(ctx *Context, data []byte) (ThreadInfo, error) {
+  var info GQLThreadInfo
+  err := json.Unmarshal(data, &info)
+  if err != nil {
+    return nil, err
+  }
+  return &info, nil
+}
+
 type GQLThreadJSON struct {
   SimpleThreadJSON
   Listen string `json:"listen"`
 }
 
-type GQLThreadInfo struct {
-  Start bool `json:"start"`
-  StartAction string `json:"start_action"`
-  RestoreAction string `json:"restore_action"`
-}
-
 func NewGQLThreadJSON(thread *GQLThread) GQLThreadJSON {
   thread_json := NewSimpleThreadJSON(&thread.SimpleThread)
 
@@ -364,6 +367,20 @@ func NewGQLThreadJSON(thread *GQLThread) GQLThreadJSON {
   }
 }
 
+type GQLThreadInfo struct {
+  Start bool `json:"start"`
+  StartAction string `json:"start_action"`
+  RestoreAction string `json:"restore_action"`
+}
+
+func NewGQLThreadInfo(start bool, start_action string, restore_action string) GQLThreadInfo {
+  return GQLThreadInfo{
+    Start: start,
+    StartAction: start_action,
+    RestoreAction: restore_action,
+  }
+}
+
 func LoadGQLThread(ctx *Context, id NodeID, data []byte, nodes NodeMap) (Node, error) {
   var j GQLThreadJSON
   err := json.Unmarshal(data, &j)
@@ -386,6 +403,7 @@ func NewGQLThread(id NodeID, name string, state_name string, listen string) GQLT
   return GQLThread{
     SimpleThread: NewSimpleThread(id, name, state_name, reflect.TypeOf((*GQLThreadInfo)(nil)), gql_actions, gql_handlers),
     Listen: listen,
+    http_done: &sync.WaitGroup{},
   }
 }
 
@@ -479,14 +497,14 @@ var gql_handlers ThreadHandlers = ThreadHandlers{
     server := thread.(*GQLThread)
     server.http_server.Shutdown(context.TODO())
     server.http_done.Wait()
-    return "", NewThreadAbortedError(signal.Source())
+    return ThreadAbort(ctx, thread, signal)
   },
   "cancel": func(ctx * Context, thread Thread, signal GraphSignal) (string, error) {
     ctx.Log.Logf("gql", "GQL_CANCEL")
     server := thread.(*GQLThread)
     server.http_server.Shutdown(context.TODO())
     server.http_done.Wait()
-    return "", nil
+    return ThreadCancel(ctx, thread, signal)
   },
 }
 

gql_graph.go

@@ -7,12 +7,12 @@ import (
 )
 
 var gql_interface_graph_node *graphql.Interface = nil
-func GQLInterfaceGraphNode() *graphql.Interface {
+func GQLInterfaceNode() *graphql.Interface {
   if gql_interface_graph_node == nil {
     gql_interface_graph_node = graphql.NewInterface(graphql.InterfaceConfig{
-      Name: "GraphNode",
+      Name: "Node",
       ResolveType: func(p graphql.ResolveTypeParams) *graphql.Object {
-        ctx, ok := p.Context.Value("graph_context").(*GraphContext)
+        ctx, ok := p.Context.Value("graph_context").(*Context)
         if ok == false {
           return nil
         }
@@ -39,10 +39,6 @@ func GQLInterfaceGraphNode() *graphql.Interface {
     gql_interface_graph_node.AddFieldConfig("ID", &graphql.Field{
       Type: graphql.String,
     })
-
-    gql_interface_graph_node.AddFieldConfig("Name", &graphql.Field{
-      Type: graphql.String,
-    })
   }
 
   return gql_interface_graph_node
@@ -62,7 +58,7 @@ func GQLInterfaceThread() *graphql.Interface {
     gql_interface_thread = graphql.NewInterface(graphql.InterfaceConfig{
       Name: "Thread",
       ResolveType: func(p graphql.ResolveTypeParams) *graphql.Object {
-        ctx, ok := p.Context.Value("graph_context").(*GraphContext)
+        ctx, ok := p.Context.Value("graph_context").(*Context)
         if ok == false {
           return nil
         }
@@ -133,7 +129,7 @@ func GQLInterfaceLockable() *graphql.Interface {
     gql_interface_lockable = graphql.NewInterface(graphql.InterfaceConfig{
       Name: "Lockable",
       ResolveType: func(p graphql.ResolveTypeParams) *graphql.Object {
-        ctx, ok := p.Context.Value("graph_context").(*GraphContext)
+        ctx, ok := p.Context.Value("graph_context").(*Context)
         if ok == false {
           return nil
         }
@@ -186,27 +182,27 @@ func GQLInterfaceLockable() *graphql.Interface {
 }
 
 func GQLNodeID(p graphql.ResolveParams) (interface{}, error) {
-  node, ok := p.Source.(GraphNode)
+  node, ok := p.Source.(Node)
   if ok == false || node == nil {
-    return nil, fmt.Errorf("Failed to cast source to GraphNode")
+    return nil, fmt.Errorf("Failed to cast source to Node")
   }
   return node.ID(), nil
 }
 
-func GQLNodeName(p graphql.ResolveParams) (interface{}, error) {
-  node, ok := p.Source.(GraphNode)
+func GQLThreadListen(p graphql.ResolveParams) (interface{}, error) {
+  node, ok := p.Source.(*GQLThread)
   if ok == false || node == nil {
-    return nil, fmt.Errorf("Failed to cast source to GraphNode")
+    return nil, fmt.Errorf("Failed to cast source to GQLThread")
   }
 
-  ctx, ok := p.Context.Value("graph_context").(*GraphContext)
+  ctx, ok := p.Context.Value("graph_context").(*Context)
   if ok == false {
-    return nil, fmt.Errorf("Failed to cast context graph_context to GraphContext")
+    return nil, fmt.Errorf("Failed to cast context graph_context to Context")
   }
 
-  name := ""
-  err := UseStates(ctx, []GraphNode{node}, func(states NodeStateMap) (error) {
-    name = states[node.ID()].Name()
+  listen := ""
+  err := UseStates(ctx, []Node{node}, func(nodes NodeMap) (error) {
+    listen = node.Listen
     return nil
   })
 
@@ -214,27 +210,23 @@ func GQLNodeName(p graphql.ResolveParams) (interface{}, error) {
     return nil, err
   }
 
-  return name, nil
+  return listen, nil
 }
 
-func GQLThreadListen(p graphql.ResolveParams) (interface{}, error) {
-  node, ok := p.Source.(*GQLThread)
+func GQLThreadParent(p graphql.ResolveParams) (interface{}, error) {
+  node, ok := p.Source.(Thread)
   if ok == false || node == nil {
-    return nil, fmt.Errorf("Failed to cast source to GQLThread")
+    return nil, fmt.Errorf("Failed to cast source to Thread")
   }
 
-  ctx, ok := p.Context.Value("graph_context").(*GraphContext)
+  ctx, ok := p.Context.Value("graph_context").(*Context)
   if ok == false {
-    return nil, fmt.Errorf("Failed to cast context graph_context to GraphContext")
+    return nil, fmt.Errorf("Failed to cast context graph_context to Context")
   }
 
-  listen := ""
-  err := UseStates(ctx, []GraphNode{node}, func(states NodeStateMap) (error) {
-    gql_thread, ok := states[node.ID()].(*GQLThreadState)
-    if ok == false {
-      return fmt.Errorf("Failed to cast state to GQLThreadState")
-    }
-    listen = gql_thread.Listen
+  var parent Thread = nil
+  err := UseStates(ctx, []Node{node}, func(nodes NodeMap) (error) {
+    parent = node.Parent()
     return nil
   })
 
@@ -242,27 +234,23 @@ func GQLThreadListen(p graphql.ResolveParams) (interface{}, error) {
     return nil, err
   }
 
-  return listen, nil
+  return parent, nil
 }
 
-func GQLThreadParent(p graphql.ResolveParams) (interface{}, error) {
+func GQLThreadChildren(p graphql.ResolveParams) (interface{}, error) {
   node, ok := p.Source.(Thread)
   if ok == false || node == nil {
     return nil, fmt.Errorf("Failed to cast source to Thread")
   }
 
-  ctx, ok := p.Context.Value("graph_context").(*GraphContext)
+  ctx, ok := p.Context.Value("graph_context").(*Context)
   if ok == false {
-    return nil, fmt.Errorf("Failed to cast context graph_context to GraphContext")
+    return nil, fmt.Errorf("Failed to cast context graph_context to Context")
   }
 
-  var parent Thread = nil
-  err := UseStates(ctx, []GraphNode{node}, func(states NodeStateMap) (error) {
-    gql_thread, ok := states[node.ID()].(ThreadState)
-    if ok == false {
-      return fmt.Errorf("Failed to cast state to ThreadState")
-    }
-    parent = gql_thread.Parent()
+  var children []Thread = nil
+  err := UseStates(ctx, []Node{node}, func(nodes NodeMap) (error) {
+    children = node.Children()
     return nil
   })
 
@@ -270,27 +258,23 @@ func GQLThreadParent(p graphql.ResolveParams) (interface{}, error) {
     return nil, err
   }
 
-  return parent, nil
+  return children, nil
 }
 
-func GQLThreadChildren(p graphql.ResolveParams) (interface{}, error) {
-  node, ok := p.Source.(Thread)
+func GQLLockableName(p graphql.ResolveParams) (interface{}, error) {
+  node, ok := p.Source.(Lockable)
   if ok == false || node == nil {
-    return nil, fmt.Errorf("Failed to cast source to Thread")
+    return nil, fmt.Errorf("Failed to cast source to Lockable")
   }
 
-  ctx, ok := p.Context.Value("graph_context").(*GraphContext)
-  if ok == false {
-    return nil, fmt.Errorf("Failed to cast context graph_context to GraphContext")
+  ctx, ok := p.Context.Value("graph_context").(*Context)
+  if ok == false || node == nil {
+    return nil, fmt.Errorf("Failed to cast context graph_context to Context")
   }
 
-  var children []Thread = nil
-  err := UseStates(ctx, []GraphNode{node}, func(states NodeStateMap) (error) {
-    gql_thread, ok := states[node.ID()].(ThreadState)
-    if ok == false {
-      return fmt.Errorf("Failed to cast state to ThreadState")
-    }
-    children = gql_thread.Children()
+  name := ""
+  err := UseStates(ctx, []Node{node}, func(nodes NodeMap) error {
+    name = node.Name()
     return nil
   })
 
@@ -298,7 +282,7 @@ func GQLThreadChildren(p graphql.ResolveParams) (interface{}, error) {
     return nil, err
   }
 
-  return children, nil
+  return name, nil
 }
 
 func GQLLockableRequirements(p graphql.ResolveParams) (interface{}, error) {
@@ -307,18 +291,14 @@ func GQLLockableRequirements(p graphql.ResolveParams) (interface{}, error) {
     return nil, fmt.Errorf("Failed to cast source to Lockable")
   }
 
-  ctx, ok := p.Context.Value("graph_context").(*GraphContext)
+  ctx, ok := p.Context.Value("graph_context").(*Context)
   if ok == false {
-    return nil, fmt.Errorf("Failed to cast context graph_context to GraphContext")
+    return nil, fmt.Errorf("Failed to cast context graph_context to Context")
   }
 
   var requirements []Lockable = nil
-  err := UseStates(ctx, []GraphNode{node}, func(states NodeStateMap) (error) {
-    gql_thread, ok := states[node.ID()].(LockableState)
-    if ok == false {
-      return fmt.Errorf("Failed to cast state to LockableState")
-    }
-    requirements = gql_thread.Requirements()
+  err := UseStates(ctx, []Node{node}, func(nodes NodeMap) (error) {
+    requirements = node.Requirements()
     return nil
   })
 
@@ -335,18 +315,14 @@ func GQLLockableDependencies(p graphql.ResolveParams) (interface{}, error) {
     return nil, fmt.Errorf("Failed to cast source to Lockable")
   }
 
-  ctx, ok := p.Context.Value("graph_context").(*GraphContext)
+  ctx, ok := p.Context.Value("graph_context").(*Context)
   if ok == false {
-    return nil, fmt.Errorf("Failed to cast context graph_context to GraphContext")
+    return nil, fmt.Errorf("Failed to cast context graph_context to Context")
   }
 
   var dependencies []Lockable = nil
-  err := UseStates(ctx, []GraphNode{node}, func(states NodeStateMap) (error) {
-    gql_thread, ok := states[node.ID()].(LockableState)
-    if ok == false {
-      return fmt.Errorf("Failed to cast state to LockableState")
-    }
-    dependencies = gql_thread.Dependencies()
+  err := UseStates(ctx, []Node{node}, func(nodes NodeMap) (error) {
+    dependencies = node.Dependencies()
     return nil
   })
 
@@ -363,18 +339,14 @@ func GQLLockableOwner(p graphql.ResolveParams) (interface{}, error) {
     return nil, fmt.Errorf("Failed to cast source to Lockable")
   }
 
-  ctx, ok := p.Context.Value("graph_context").(*GraphContext)
+  ctx, ok := p.Context.Value("graph_context").(*Context)
   if ok == false {
-    return nil, fmt.Errorf("Failed to cast context graph_context to GraphContext")
+    return nil, fmt.Errorf("Failed to cast context graph_context to Context")
   }
 
-  var owner GraphNode = nil
-  err := UseStates(ctx, []GraphNode{node}, func(states NodeStateMap) (error) {
-    gql_thread, ok := states[node.ID()].(LockableState)
-    if ok == false {
-      return fmt.Errorf("Failed to cast state to LockableState")
-    }
-    owner = gql_thread.Owner()
+  var owner Node = nil
+  err := UseStates(ctx, []Node{node}, func(nodes NodeMap) (error) {
+    owner = node.Owner()
     return nil
   })
 
@@ -392,7 +364,7 @@ func GQLTypeGQLThread() * graphql.Object {
     gql_type_gql_thread = graphql.NewObject(graphql.ObjectConfig{
       Name: "GQLThread",
       Interfaces: []*graphql.Interface{
-        GQLInterfaceGraphNode(),
+        GQLInterfaceNode(),
         GQLInterfaceThread(),
         GQLInterfaceLockable(),
       },
@@ -410,7 +382,7 @@ func GQLTypeGQLThread() * graphql.Object {
 
     gql_type_gql_thread.AddFieldConfig("Name", &graphql.Field{
       Type: graphql.String,
-      Resolve: GQLNodeName,
+      Resolve: GQLLockableName,
     })
 
     gql_type_gql_thread.AddFieldConfig("Children", &graphql.Field{
@@ -452,12 +424,12 @@ func GQLTypeBaseThread() * graphql.Object {
     gql_type_base_thread = graphql.NewObject(graphql.ObjectConfig{
       Name: "BaseThread",
       Interfaces: []*graphql.Interface{
-        GQLInterfaceGraphNode(),
+        GQLInterfaceNode(),
         GQLInterfaceThread(),
         GQLInterfaceLockable(),
       },
       IsTypeOf: func(p graphql.IsTypeOfParams) bool {
-        ctx, ok := p.Context.Value("graph_context").(*GraphContext)
+        ctx, ok := p.Context.Value("graph_context").(*Context)
         if ok == false {
           return false
         }
@@ -481,7 +453,7 @@ func GQLTypeBaseThread() * graphql.Object {
 
     gql_type_base_thread.AddFieldConfig("Name", &graphql.Field{
       Type: graphql.String,
-      Resolve: GQLNodeName,
+      Resolve: GQLLockableName,
     })
 
     gql_type_base_thread.AddFieldConfig("Children", &graphql.Field{
@@ -518,11 +490,11 @@ func GQLTypeBaseLockable() * graphql.Object {
     gql_type_base_lockable = graphql.NewObject(graphql.ObjectConfig{
       Name: "BaseLockable",
       Interfaces: []*graphql.Interface{
-        GQLInterfaceGraphNode(),
+        GQLInterfaceNode(),
         GQLInterfaceLockable(),
       },
       IsTypeOf: func(p graphql.IsTypeOfParams) bool {
-        ctx, ok := p.Context.Value("graph_context").(*GraphContext)
+        ctx, ok := p.Context.Value("graph_context").(*Context)
         if ok == false {
           return false
         }
@@ -546,7 +518,7 @@ func GQLTypeBaseLockable() * graphql.Object {
 
     gql_type_base_lockable.AddFieldConfig("Name", &graphql.Field{
       Type: graphql.String,
-      Resolve: GQLNodeName,
+      Resolve: GQLLockableName,
     })
 
     gql_type_base_lockable.AddFieldConfig("Requirements", &graphql.Field{
@@ -573,10 +545,10 @@ func GQLTypeBaseNode() * graphql.Object {
     gql_type_base_node = graphql.NewObject(graphql.ObjectConfig{
       Name: "BaseNode",
       Interfaces: []*graphql.Interface{
-        GQLInterfaceGraphNode(),
+        GQLInterfaceNode(),
       },
       IsTypeOf: func(p graphql.IsTypeOfParams) bool {
-        ctx, ok := p.Context.Value("graph_context").(*GraphContext)
+        ctx, ok := p.Context.Value("graph_context").(*Context)
         if ok == false {
           return false
         }
@@ -600,7 +572,7 @@ func GQLTypeBaseNode() * graphql.Object {
 
     gql_type_base_node.AddFieldConfig("Name", &graphql.Field{
       Type: graphql.String,
-      Resolve: GQLNodeName,
+      Resolve: GQLLockableName,
     })
   }
 
@@ -699,32 +671,32 @@ func GQLTypeSignalInput() *graphql.InputObject {
 }
 
 func GQLSubscribeSignal(p graphql.ResolveParams) (interface{}, error) {
-  return GQLSubscribeFn(p, false, func(ctx *GraphContext, server *GQLThread, signal GraphSignal, p graphql.ResolveParams)(interface{}, error) {
+  return GQLSubscribeFn(p, false, func(ctx *Context, server *GQLThread, signal GraphSignal, p graphql.ResolveParams)(interface{}, error) {
     return signal, nil
   })
 }
 
 func GQLSubscribeSelf(p graphql.ResolveParams) (interface{}, error) {
-  return GQLSubscribeFn(p, true, func(ctx *GraphContext, server *GQLThread, signal GraphSignal, p graphql.ResolveParams)(interface{}, error) {
+  return GQLSubscribeFn(p, true, func(ctx *Context, server *GQLThread, signal GraphSignal, p graphql.ResolveParams)(interface{}, error) {
     return server, nil
   })
 }
 
-func GQLSubscribeFn(p graphql.ResolveParams, send_nil bool, fn func(*GraphContext, *GQLThread, GraphSignal, graphql.ResolveParams)(interface{}, error))(interface{}, error) {
+func GQLSubscribeFn(p graphql.ResolveParams, send_nil bool, fn func(*Context, *GQLThread, GraphSignal, graphql.ResolveParams)(interface{}, error))(interface{}, error) {
   server, ok := p.Context.Value("gql_server").(*GQLThread)
   if ok == false {
     return nil, fmt.Errorf("Failed to get gql_server from context and cast to GQLServer")
   }
 
-  ctx, ok := p.Context.Value("graph_context").(*GraphContext)
+  ctx, ok := p.Context.Value("graph_context").(*Context)
   if ok == false {
-    return nil, fmt.Errorf("Failed to get graph_context from context and cast to GraphContext")
+    return nil, fmt.Errorf("Failed to get graph_context from context and cast to Context")
   }
 
   c := make(chan interface{})
   go func(c chan interface{}, server *GQLThread) {
     ctx.Log.Logf("gqlws", "GQL_SUBSCRIBE_THREAD_START")
-    sig_c := server.UpdateChannel(1)
+    sig_c := UpdateChannel(server, 1, RandID())
     if send_nil == true {
       sig_c <- nil
     }
@@ -793,9 +765,9 @@ func GQLMutationSendUpdate() *graphql.Field {
           return nil, fmt.Errorf("Failed to cast context gql_server to GQLServer: %+v", p.Context.Value("gql_server"))
         }
 
-        ctx, ok := p.Context.Value("graph_context").(*GraphContext)
+        ctx, ok := p.Context.Value("graph_context").(*Context)
         if ok == false {
-          return nil, fmt.Errorf("Failed to cast context graph_context to GraphContext: %+v", p.Context.Value("graph_context"))
+          return nil, fmt.Errorf("Failed to cast context graph_context to Context: %+v", p.Context.Value("graph_context"))
         }
 
         signal_map, ok := p.Args["signal"].(map[string]interface{})
@@ -818,13 +790,13 @@ func GQLMutationSendUpdate() *graphql.Field {
           return nil, fmt.Errorf("Failed to cast arg id to string")
         }
 
-        var node GraphNode = nil
-        err := UseStates(ctx, []GraphNode{server}, func(states NodeStateMap) (error){
-          node = FindChild(ctx, server, NodeID(id), states)
+        var node Node = nil
+        err := UseStates(ctx, []Node{server}, func(nodes NodeMap) (error){
+          node = FindChild(ctx, server, NodeID(id), nodes)
           if node == nil {
             return fmt.Errorf("Failed to find ID: %s as child of server thread", id)
           }
-          SendUpdate(ctx, node, signal, states)
+          node.Signal(ctx, signal, nodes)
           return nil
         })
         if err != nil {

gql_test.go

@@ -4,64 +4,74 @@ import (
   "testing"
   "time"
   "fmt"
-  "encoding/json"
   "errors"
 )
 
 func TestGQLThread(t * testing.T) {
   ctx := logTestContext(t, []string{})
-  gql_thread, err := NewGQLThread(ctx, ":0", []Lockable{})
-  fatalErr(t, err)
-
-  test_thread_1, err := NewSimpleThread(ctx, "Test thread 1", []Lockable{}, BaseThreadActions, BaseThreadHandlers)
-  fatalErr(t, err)
-
-  test_thread_2, err := NewSimpleThread(ctx, "Test thread 2", []Lockable{}, BaseThreadActions, BaseThreadHandlers)
-  fatalErr(t, err)
-
-  i1 := NewGQLThreadInfo(true, "start", "restore")
-  err = LinkThreads(ctx, gql_thread, test_thread_1, &i1)
-  fatalErr(t, err)
+  gql_t_r := NewGQLThread(RandID(), "GQL Thread", "init", ":0")
+  gql_t := &gql_t_r
+
+  t1_r := NewSimpleThread(RandID(), "Test thread 1", "init", nil, BaseThreadActions, BaseThreadHandlers)
+  t1 := &t1_r
+  t2_r := NewSimpleThread(RandID(), "Test thread 2", "init", nil, BaseThreadActions, BaseThreadHandlers)
+  t2 := &t2_r
+
+  err := UpdateStates(ctx, []Node{gql_t, t1, t2}, func(nodes NodeMap) error {
+    i1 := NewGQLThreadInfo(true, "start", "restore")
+    err := LinkThreads(ctx, gql_t, t1, &i1, nodes)
+    if err != nil {
+      return err
+    }
 
-  i2 := NewGQLThreadInfo(false, "start", "restore")
-  err = LinkThreads(ctx, gql_thread, test_thread_2, &i2)
+    i2 := NewGQLThreadInfo(false, "start", "restore")
+    return LinkThreads(ctx, gql_t, t2, &i2, nodes)
+  })
   fatalErr(t, err)
 
   go func(thread Thread){
     time.Sleep(10*time.Millisecond)
-    err := UseStates(ctx, []GraphNode{thread}, func(states NodeStateMap) error {
-      SendUpdate(ctx, thread, CancelSignal(nil), states)
-      return nil
+    err := UseStates(ctx, []Node{thread}, func(nodes NodeMap) error {
+      return thread.Signal(ctx, CancelSignal(nil), nodes)
     })
     fatalErr(t, err)
-  }(gql_thread)
+  }(gql_t)
 
-  err = ThreadLoop(ctx, gql_thread, "start")
+  err = ThreadLoop(ctx, gql_t, "start")
   fatalErr(t, err)
 }
 
 func TestGQLDBLoad(t * testing.T) {
-  ctx := logTestContext(t, []string{"thread", "update", "gql"})
-  l1, err := NewSimpleLockable(ctx, "Test Lockable 1", []Lockable{})
-  fatalErr(t, err)
+  ctx := logTestContext(t, []string{"thread", "signal", "gql", "test"})
+  l1_r := NewSimpleLockable(RandID(), "Test Lockable 1")
+  l1 := &l1_r
 
-  t1, err := NewSimpleThread(ctx, "Test Thread 1", []Lockable{}, BaseThreadActions, BaseThreadHandlers)
-  fatalErr(t, err)
-  update_channel := t1.UpdateChannel(10)
+  t1_r := NewSimpleThread(RandID(), "Test Thread 1", "init", nil, BaseThreadActions, BaseThreadHandlers)
+  t1 := &t1_r
+  update_channel := UpdateChannel(t1, 10, "test")
 
-  gql, err := NewGQLThread(ctx, ":0", []Lockable{l1})
-  fatalErr(t, err)
+  gql_r := NewGQLThread(RandID(), "GQL Thread", "init", ":8080")
+  gql := &gql_r
 
   info := NewGQLThreadInfo(true, "start", "restore")
-  err = UpdateStates(ctx, []GraphNode{gql, t1}, func(nodes NodeMap) error {
-    return LinkThreads(ctx, gql, t1, &info)
+  err := UpdateStates(ctx, []Node{gql, t1}, func(nodes NodeMap) error {
+    err := LinkLockables(ctx, gql, []Lockable{l1}, nodes)
+    if err != nil {
+      return err
+    }
+    return LinkThreads(ctx, gql, t1, &info, nodes)
   })
   fatalErr(t, err)
-  err = UseStates(ctx, []GraphNode{gql}, func(states NodeStateMap) error {
-    SendUpdate(ctx, gql, NewSignal(t1, "child_added"), states)
-    SendUpdate(ctx, gql, AbortSignal(nil), states)
-    return nil
+
+  err = UseStates(ctx, []Node{gql}, func(nodes NodeMap) error {
+    err := gql.Signal(ctx, NewSignal(t1, "child_added"), nodes)
+    if err != nil {
+      return nil
+    }
+    return gql.Signal(ctx, AbortSignal(nil), nodes)
   })
+  fatalErr(t, err)
+
   err = ThreadLoop(ctx, gql, "start")
   if errors.Is(err, NewThreadAbortedError("")) {
     ctx.Log.Logf("test", "Main thread aborted by signal: %s", err)
@@ -71,9 +81,9 @@ func TestGQLDBLoad(t * testing.T) {
 
   (*GraphTester)(t).WaitForValue(ctx, update_channel, "thread_aborted", t1, 100*time.Millisecond, "Didn't receive thread_abort from t1 on t1")
 
-  err = UseStates(ctx, []GraphNode{gql, t1}, func(states NodeStateMap) error {
-    ser1, err := json.MarshalIndent(states[gql.ID()], "", "  ")
-    ser2, err := json.MarshalIndent(states[t1.ID()], "", "  ")
+  err = UseStates(ctx, []Node{gql, t1}, func(nodes NodeMap) error {
+    ser1, err := gql.Serialize()
+    ser2, err := t1.Serialize()
     fmt.Printf("\n%s\n\n", ser1)
     fmt.Printf("\n%s\n\n", ser2)
     return err
@@ -81,20 +91,21 @@ func TestGQLDBLoad(t * testing.T) {
 
   gql_loaded, err := LoadNode(ctx, gql.ID())
   fatalErr(t, err)
-  var t1_loaded *BaseThread = nil
+  var t1_loaded *SimpleThread = nil
 
-  err = UseStates(ctx, []GraphNode{gql_loaded}, func(states NodeStateMap) error {
-    ser, err := json.MarshalIndent(states[gql_loaded.ID()], "", "  ")
+  var update_channel_2 chan GraphSignal
+  err = UseStates(ctx, []Node{gql_loaded}, func(nodes NodeMap) error {
+    ser, err := gql_loaded.Serialize()
     fmt.Printf("\n%s\n\n", ser)
-    child := states[gql_loaded.ID()].(ThreadState).Children()[0]
-    t1_loaded = child.(*BaseThread)
-    update_channel = t1_loaded.UpdateChannel(10)
-    err = UseMoreStates(ctx, []GraphNode{child}, states, func(states NodeStateMap) error {
-      ser, err := json.MarshalIndent(states[child.ID()], "", "  ")
+    child := gql_loaded.(Thread).Children()[0].(*SimpleThread)
+    t1_loaded = child
+    update_channel_2 = UpdateChannel(t1_loaded, 10, "test")
+    err = UseMoreStates(ctx, []Node{child}, nodes, func(nodes NodeMap) error {
+      ser, err := child.Serialize()
       fmt.Printf("\n%s\n\n", ser)
       return err
     })
-    SendUpdate(ctx, gql_loaded, AbortSignal(nil), states)
+    gql_loaded.Signal(ctx, AbortSignal(nil), nodes)
     return err
   })
 
@@ -104,6 +115,6 @@ func TestGQLDBLoad(t * testing.T) {
   } else {
     fatalErr(t, err)
   }
-  (*GraphTester)(t).WaitForValue(ctx, update_channel, "thread_aborted", t1_loaded, 100*time.Millisecond, "Dicn't received thread_aborted on t1_loaded from t1_loaded")
+  (*GraphTester)(t).WaitForValue(ctx, update_channel_2, "thread_aborted", t1_loaded, 100*time.Millisecond, "Dicn't received thread_aborted on t1_loaded from t1_loaded")
 
 }

lockable.go

@@ -27,6 +27,7 @@ type Lockable interface {
   SetOwner(new_owner Lockable)
 
   //// State Reading Functions
+  Name() string
   // Called when new_owner wants to take lockable's lock but it's owned by this node
   // A true return value means that the lock can be passed
   AllowedToTakeLock(new_owner Lockable, lockable Lockable) bool

thread.go

@@ -145,7 +145,7 @@ func (thread * SimpleThread) AddChild(child Thread, info ThreadInfo) error {
     return fmt.Errorf("nil info passed when expecting info")
   } else if info != nil {
     if reflect.TypeOf(info) != thread.InfoType {
-      return fmt.Errorf("info type mismatch, expecting %+v", thread.InfoType)
+      return fmt.Errorf("info type mismatch, expecting %+v - %+v", thread.InfoType, reflect.TypeOf(info))
     }
   }
 
@@ -388,6 +388,7 @@ const THREAD_SIGNAL_BUFFER_SIZE = 128
 func NewSimpleThread(id NodeID, name string, state_name string, info_type reflect.Type, actions ThreadActions, handlers ThreadHandlers) SimpleThread {
   return SimpleThread{
     SimpleLockable: NewSimpleLockable(id, name),
+    InfoType: info_type,
     state_name: state_name,
     signal: make(chan GraphSignal, THREAD_SIGNAL_BUFFER_SIZE),
     children: []Thread{},