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issue-433 increase the number of constructed Jsonnet handles.

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This commit is contained in:
Alexander Petrov 2020-07-29 01:13:49 +02:00 committed by Stanisław Barzowski
parent a1f3af26dc
commit db2bf1e024
4 changed files with 20 additions and 20 deletions
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12
c-bindings/c-bindings.go
View File

@ -106,12 +106,12 @@ func jsonnet_make() *C.struct_JsonnetVm {
os.Exit(1) os.Exit(1)
} }
return C.jsonnet_internal_make_vm_with_id(C.uint32_t(id)) return C.jsonnet_internal_make_vm_with_id(C.uint64_t(id))
} }
//export jsonnet_destroy //export jsonnet_destroy
func jsonnet_destroy(vmRef *C.struct_JsonnetVm) { func jsonnet_destroy(vmRef *C.struct_JsonnetVm) {
if err := handles.free(uint32(vmRef.id)); err != nil { if err := handles.free(uint64(vmRef.id)); err != nil {
fmt.Fprintln(os.Stderr, err.Error()) fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
} }
@ -120,7 +120,7 @@ func jsonnet_destroy(vmRef *C.struct_JsonnetVm) {
} }
func getVM(vmRef *C.struct_JsonnetVm) *vm { func getVM(vmRef *C.struct_JsonnetVm) *vm {
ref, err := handles.get(uint32(vmRef.id)) ref, err := handles.get(uint64(vmRef.id))
if err != nil { if err != nil {
fmt.Fprintln(os.Stderr, err.Error()) fmt.Fprintln(os.Stderr, err.Error())
@ -411,7 +411,7 @@ func jsonnet_json_destroy(vmRef *C.struct_JsonnetVm, v *C.struct_JsonnetJsonValu
jsonnet_json_destroy(vmRef, child) jsonnet_json_destroy(vmRef, child)
} }
if err := handles.free(uint32(v.id)); err != nil { if err := handles.free(uint64(v.id)); err != nil {
fmt.Fprintln(os.Stderr, err.Error()) fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1) os.Exit(1)
} }
@ -427,11 +427,11 @@ func createJSONValue(vmRef *C.struct_JsonnetVm, val interface{}) *C.struct_Jsonn
os.Exit(1) os.Exit(1)
} }
return C.jsonnet_internal_make_json_with_id(C.uint32_t(id)) return C.jsonnet_internal_make_json_with_id(C.uint64_t(id))
} }
func getJSONValue(jsonRef *C.struct_JsonnetJsonValue) *jsonValue { func getJSONValue(jsonRef *C.struct_JsonnetJsonValue) *jsonValue {
ref, err := handles.get(uint32(jsonRef.id)) ref, err := handles.get(uint64(jsonRef.id))
if err != nil { if err != nil {
fmt.Fprintln(os.Stderr, err.Error()) fmt.Fprintln(os.Stderr, err.Error())

16
c-bindings/handles.go
View File

@ -5,7 +5,7 @@ import (
"fmt" "fmt"
) )
const maxID = 100000 const maxID = (1 << 63) - 1
// Because of Go GC, there are restrictions on keeping Go pointers in C. // Because of Go GC, there are restrictions on keeping Go pointers in C.
// We cannot just pass *jsonnet.VM/JsonValue to C. So instead we use "handle" structs in C // We cannot just pass *jsonnet.VM/JsonValue to C. So instead we use "handle" structs in C
@ -18,7 +18,7 @@ const maxID = 100000
// handlesTable is the set of active, valid Jsonnet allocated handles // handlesTable is the set of active, valid Jsonnet allocated handles
type handlesTable struct { type handlesTable struct {
objects []interface{} objects []interface{}
freedIDs []uint32 freedIDs []uint64
} }
// errMaxNumberOfOpenHandles tells that there was an attempt to create more than maxID open handles // errMaxNumberOfOpenHandles tells that there was an attempt to create more than maxID open handles
@ -28,14 +28,14 @@ var errMaxNumberOfOpenHandles = fmt.Errorf("maximum number of constructed Jsonne
var errInvalidHandle = errors.New("invalid handle ID was provided") var errInvalidHandle = errors.New("invalid handle ID was provided")
// make registers the new object as a handle and returns the corresponding ID // make registers the new object as a handle and returns the corresponding ID
func (h *handlesTable) make(obj interface{}) (uint32, error) { func (h *handlesTable) make(obj interface{}) (uint64, error) {
var id uint32 var id uint64
if len(h.freedIDs) > 0 { if len(h.freedIDs) > 0 {
id, h.freedIDs = h.freedIDs[len(h.freedIDs)-1], h.freedIDs[:len(h.freedIDs)-1] id, h.freedIDs = h.freedIDs[len(h.freedIDs)-1], h.freedIDs[:len(h.freedIDs)-1]
h.objects[id-1] = obj h.objects[id-1] = obj
} else { } else {
id = uint32(len(h.objects) + 1) id = uint64(len(h.objects) + 1)
if id > maxID { if id > maxID {
return 0, errMaxNumberOfOpenHandles return 0, errMaxNumberOfOpenHandles
@ -48,7 +48,7 @@ func (h *handlesTable) make(obj interface{}) (uint32, error) {
} }
// free marks the given handle ID as unused // free marks the given handle ID as unused
func (h *handlesTable) free(id uint32) error { func (h *handlesTable) free(id uint64) error {
if err := h.ensureValidID(id); err != nil { if err := h.ensureValidID(id); err != nil {
return err return err
} }
@ -60,7 +60,7 @@ func (h *handlesTable) free(id uint32) error {
} }
// get returns the corresponding object for the provided ID // get returns the corresponding object for the provided ID
func (h *handlesTable) get(id uint32) (interface{}, error) { func (h *handlesTable) get(id uint64) (interface{}, error) {
if err := h.ensureValidID(id); err != nil { if err := h.ensureValidID(id); err != nil {
return nil, err return nil, err
} }
@ -69,7 +69,7 @@ func (h *handlesTable) get(id uint32) (interface{}, error) {
} }
// ensureValidID returns an error if the given handle ID is invalid, otherwise returns nil // ensureValidID returns an error if the given handle ID is invalid, otherwise returns nil
func (h *handlesTable) ensureValidID(id uint32) error { func (h *handlesTable) ensureValidID(id uint64) error {
if id == 0 || uint64(id) > uint64(len(h.objects)) { if id == 0 || uint64(id) > uint64(len(h.objects)) {
return errInvalidHandle return errInvalidHandle
} }

8
c-bindings/internal.h
View File

@ -3,17 +3,17 @@
#include <stdint.h> #include <stdint.h>
struct JsonnetVm { struct JsonnetVm {
uint32_t id; uint64_t id;
}; };
struct JsonnetVm *jsonnet_internal_make_vm_with_id(uint32_t id); struct JsonnetVm *jsonnet_internal_make_vm_with_id(uint64_t id);
void jsonnet_internal_free_vm(struct JsonnetVm *x); void jsonnet_internal_free_vm(struct JsonnetVm *x);
struct JsonnetJsonValue { struct JsonnetJsonValue {
uint32_t id; uint64_t id;
}; };
struct JsonnetJsonValue *jsonnet_internal_make_json_with_id(uint32_t id); struct JsonnetJsonValue *jsonnet_internal_make_json_with_id(uint64_t id);
void jsonnet_internal_free_json(struct JsonnetJsonValue *x); void jsonnet_internal_free_json(struct JsonnetJsonValue *x);
typedef struct JsonnetJsonValue *JsonnetNativeCallback(void *ctx, typedef struct JsonnetJsonValue *JsonnetNativeCallback(void *ctx,

4
c-bindings/libjsonnet.cpp
View File

@ -6,7 +6,7 @@ extern "C" {
#include "internal.h" #include "internal.h"
} }
struct JsonnetVm *jsonnet_internal_make_vm_with_id(uint32_t id) { struct JsonnetVm *jsonnet_internal_make_vm_with_id(uint64_t id) {
JsonnetVm *vm = new JsonnetVm(); JsonnetVm *vm = new JsonnetVm();
vm->id = id; vm->id = id;
return vm; return vm;
@ -16,7 +16,7 @@ void jsonnet_internal_free_vm(struct JsonnetVm *x) {
delete(x); delete(x);
} }
struct JsonnetJsonValue *jsonnet_internal_make_json_with_id(uint32_t id) { struct JsonnetJsonValue *jsonnet_internal_make_json_with_id(uint64_t id) {
JsonnetJsonValue *json = new JsonnetJsonValue(); JsonnetJsonValue *json = new JsonnetJsonValue();
json->id = id; json->id = id;
return json; return json;