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Add Isolate creation and disposal for Yao (dev)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| package v8go | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "unsafe" | ||
| ) | ||
|
|
||
| // #include "v8go.h" | ||
| // #include <stdlib.h> | ||
| import "C" | ||
|
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| // YaoNewIsolate creates a new V8 isolate. Only one thread may access | ||
| // a given isolate at a time, but different threads may access | ||
| // different isolates simultaneously. | ||
| // When an isolate is no longer used its resources should be freed | ||
| // by calling iso.Dispose(). | ||
| // An *Isolate can be used as a v8go.ContextOption to create a new | ||
| // Context, rather than creating a new default Isolate. | ||
| func YaoNewIsolate() *Isolate { | ||
| iso := &Isolate{ | ||
| ptr: C.YaoNewIsolate(), | ||
| cbs: make(map[int]FunctionCallback), | ||
| } | ||
| iso.null = newValueNull(iso) | ||
| iso.undefined = newValueUndefined(iso) | ||
| return iso | ||
| } | ||
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| // YaoNewIsolateFromGlobal creates a new V8 isolate from global. | ||
| func YaoNewIsolateFromGlobal() (*Isolate, error) { | ||
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| ptr := C.YaoNewIsolateFromGlobal() | ||
| if ptr == nil { | ||
| return nil, fmt.Errorf("YaoNewIsolateFromGlobal failed") | ||
| } | ||
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| iso := &Isolate{ | ||
| ptr: ptr, | ||
| cbs: make(map[int]FunctionCallback), | ||
| } | ||
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| return iso, nil | ||
| } | ||
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| // YaoDispose will dispose the Isolate VM; subsequent calls will panic. | ||
| func YaoDispose() { | ||
| C.YaoDispose() | ||
| } | ||
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| // Copy copies the current isolate. | ||
| func (iso *Isolate) Copy() (*Isolate, error) { | ||
| if iso == nil || iso.ptr == nil { | ||
| return nil, fmt.Errorf("invalid isolate") | ||
| } | ||
| new := &Isolate{ | ||
| ptr: C.YaoCopyIsolate(iso.ptr), | ||
| cbs: make(map[int]FunctionCallback), | ||
| } | ||
| return new, nil | ||
| } | ||
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| // AsGlobal makes the isolate into a global object. | ||
| func (iso *Isolate) AsGlobal() { | ||
| C.YaoIsolateAsGlobal(iso.ptr) | ||
| } | ||
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| // YaoInit initializes V8 with the given heap size limit. | ||
| func YaoInit(heapSizeLimitMB uint) { | ||
| v8once.Do(func() { | ||
| cflags := C.CString("--no-freeze_flags_after_init") | ||
| if heapSizeLimitMB > 0 { | ||
| cflags = C.CString(fmt.Sprintf("--no-freeze_flags_after_init --max_old_space_size=%d", heapSizeLimitMB)) | ||
| } | ||
| defer C.free(unsafe.Pointer(cflags)) | ||
| C.SetFlags(cflags) | ||
| C.Init() | ||
| }) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| package v8go_test | ||
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| import ( | ||
| "fmt" | ||
| "testing" | ||
|
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| v8 "rogchap.com/v8go" | ||
| ) | ||
|
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| func TestYaoVersionPrint(t *testing.T) { | ||
| v := v8.Version() | ||
| fmt.Println("Version", v) | ||
| } | ||
|
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| func TestYaoInit(t *testing.T) { | ||
| t.Parallel() | ||
| v8.YaoInit(1024) | ||
| defer v8.YaoDispose() | ||
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| iso := v8.YaoNewIsolate() | ||
| defer iso.Dispose() | ||
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| // stat := iso.GetHeapStatistics() | ||
| // if stat.HeapSizeLimit > 1100*1024*1024 { | ||
| // t.Errorf("HeapSizeLimit error %d", stat.HeapSizeLimit) | ||
| // } | ||
| } | ||
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| func TestYaoCopyIsolate(t *testing.T) { | ||
| t.Parallel() | ||
| v8.YaoInit(1024) | ||
| defer v8.YaoDispose() | ||
|
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| iso := v8.YaoNewIsolate() | ||
| defer iso.Dispose() | ||
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| new, err := iso.Copy() | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
| defer new.Dispose() | ||
| } | ||
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| func TestYaoIsolateAsGlobal(t *testing.T) { | ||
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| v8.YaoInit(1024) | ||
| defer v8.YaoDispose() | ||
|
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| iso := v8.YaoNewIsolate() | ||
| defer iso.Dispose() | ||
|
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| iso.AsGlobal() | ||
| } | ||
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| func TestYaoNewIsolateFromGlobal(t *testing.T) { | ||
| v8.YaoInit(1024) | ||
| defer v8.YaoDispose() | ||
|
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| iso := v8.YaoNewIsolate() | ||
| iso.AsGlobal() | ||
| iso.Dispose() | ||
| iso = nil | ||
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| new, err := v8.YaoNewIsolateFromGlobal() | ||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
|
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| if new == nil { | ||
| t.Errorf("new is nil") | ||
| } | ||
| defer new.Dispose() | ||
| } |