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handle.go
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handle.go
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package internal
import (
"github.com/min-oc/gosmi/parser"
"github.com/min-oc/gosmi/types"
)
const WellKnownModuleName types.SmiIdentifier = "<well-known>"
var (
WellKnownIdCcitt types.SmiSubId = 0
WellKnownIdIso types.SmiSubId = 1
WellKnownIdJointIsoCcitt types.SmiSubId = 2
)
type Handle struct {
Name string
Prev *Handle
Next *Handle
Modules ModuleMap
RootNode *Node
TypeBits *Type
TypeEnum *Type
TypeInteger32 *Type
TypeInteger64 *Type
TypeObjectIdentifier *Type
TypeOctetString *Type
TypeUnsigned32 *Type
TypeUnsigned64 *Type
Flags Flags
Paths []NamedFS
Cache string
CacheProg string
ErrorLevel int
ErrorHandler types.SmiErrorHandler
}
var smiHandle, firstHandlePtr, lastHandlePtr *Handle
func addHandle(name string) *Handle {
handlePtr := &Handle{
Name: name,
Prev: lastHandlePtr,
}
if lastHandlePtr == nil {
firstHandlePtr = handlePtr
} else {
lastHandlePtr.Next = handlePtr
}
lastHandlePtr = handlePtr
return handlePtr
}
func removeHandle(handlePtr *Handle) {
if handlePtr.Prev != nil {
handlePtr.Prev.Next = handlePtr.Next
} else {
firstHandlePtr = handlePtr.Next
}
if handlePtr.Next != nil {
handlePtr.Next.Prev = handlePtr.Prev
} else {
lastHandlePtr = handlePtr.Prev
}
}
func findHandleByName(name string) *Handle {
for handlePtr := firstHandlePtr; handlePtr != nil; handlePtr = handlePtr.Next {
if handlePtr.Name == name {
return handlePtr
}
}
return nil
}
func SetErrorHandler(smiErrorHandler types.SmiErrorHandler) {
smiHandle.ErrorHandler = smiErrorHandler
}
func SetSeverity(pattern string, severity int) {}
func SetErrorLevel(level int) {}
func GetFlags() int { return 0 }
func SetFlags(userflags int) {}
func Initialized() bool {
return smiHandle != nil
}
func GetFirstModule() *Module {
if smiHandle == nil {
return nil
}
return smiHandle.Modules.First
}
func Root() *Node {
if smiHandle == nil {
return nil
}
return smiHandle.RootNode
}
func oidFromSubId(subId types.SmiSubId) parser.Oid {
return parser.Oid{
SubIdentifiers: []parser.SubIdentifier{
{Number: &subId},
},
}
}
func createBaseType(module *Module, baseType types.BaseType) *Type {
return &Type{
SmiType: types.SmiType{
Name: types.SmiIdentifier(baseType.String()),
BaseType: baseType,
Decl: types.DeclImplicitType,
},
Module: module,
}
}
func initData() bool {
smiHandle.RootNode = &Node{Flags: FlagRoot, Oid: types.Oid{}}
wellKnownModule := &Module{
SmiModule: types.SmiModule{
Name: WellKnownModuleName,
},
PrefixNode: smiHandle.RootNode,
}
// Create ccitt well-known node
ccitt := &Object{
SmiNode: types.SmiNode{
Name: "ccitt",
Decl: types.DeclImplObject,
NodeKind: types.NodeNode,
},
Module: wellKnownModule,
}
wellKnownModule.Objects.AddWithOid(ccitt, oidFromSubId(WellKnownIdCcitt))
// Create iso well-known node
iso := &Object{
SmiNode: types.SmiNode{
Name: "iso",
Decl: types.DeclImplObject,
NodeKind: types.NodeNode,
},
Module: wellKnownModule,
}
wellKnownModule.Objects.AddWithOid(iso, oidFromSubId(WellKnownIdIso))
// Create joint-iso-ccitt well-known node
jointIsoCcitt := &Object{
SmiNode: types.SmiNode{
Name: "joint-iso-ccitt",
Decl: types.DeclImplObject,
NodeKind: types.NodeNode,
},
Module: wellKnownModule,
}
wellKnownModule.Objects.AddWithOid(jointIsoCcitt, oidFromSubId(WellKnownIdJointIsoCcitt))
smiHandle.Modules.Add(wellKnownModule)
smiHandle.TypeBits = createBaseType(wellKnownModule, types.BaseTypeBits)
smiHandle.TypeEnum = createBaseType(wellKnownModule, types.BaseTypeEnum)
smiHandle.TypeInteger32 = createBaseType(wellKnownModule, types.BaseTypeInteger32)
smiHandle.TypeInteger64 = createBaseType(wellKnownModule, types.BaseTypeInteger64)
smiHandle.TypeObjectIdentifier = createBaseType(wellKnownModule, types.BaseTypeObjectIdentifier)
smiHandle.TypeOctetString = createBaseType(wellKnownModule, types.BaseTypeOctetString)
smiHandle.TypeUnsigned32 = createBaseType(wellKnownModule, types.BaseTypeUnsigned32)
smiHandle.TypeUnsigned64 = createBaseType(wellKnownModule, types.BaseTypeUnsigned64)
return true
}
func freeData() {
}