Golang context.GoContext函數代碼示例

//export Java_io_v_impl_google_lib_discovery_UpdateImpl_nativeAttachment
func Java_io_v_impl_google_lib_discovery_UpdateImpl_nativeAttachment(jenv *C.JNIEnv, _ C.jobject, goRef C.jlong, jCtx C.jobject, jName C.jstring, jCbObj C.jobject) {
	env := jutil.Env(uintptr(unsafe.Pointer(jenv)))
	ctx, _, err := jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jCtx))))
	if err != nil {
		jutil.JThrowV(env, err)
		return
	}

	update := *(*discovery.Update)(jutil.GoRefValue(jutil.Ref(goRef)))
	name := jutil.GoString(env, jutil.Object(uintptr(unsafe.Pointer(jName))))

	jCb := jutil.Object(uintptr(unsafe.Pointer(jCbObj)))
	jutil.DoAsyncCall(env, jCb, func() (jutil.Object, error) {
		dataOrErr := <-update.Attachment(ctx, name)
		if dataOrErr.Error != nil {
			return jutil.NullObject, err
		}

		env, freeFunc := jutil.GetEnv()
		defer freeFunc()

		jData, err := jutil.JByteArray(env, dataOrErr.Data)
		if err != nil {
			return jutil.NullObject, err
		}
		// Must grab a global reference as we free up the env and all local references that come
		// along with it.
		return jutil.NewGlobalRef(env, jData), nil // Un-refed in DoAsyncCall
	})
}

//export Java_io_v_v23_security_PublicKeyThirdPartyCaveatValidator_nativeValidate
func Java_io_v_v23_security_PublicKeyThirdPartyCaveatValidator_nativeValidate(jenv *C.JNIEnv, jThirdPartyValidatorClass C.jclass, jContext C.jobject, jCall C.jobject, jCaveatParam C.jobject) {
	env := jutil.Env(uintptr(unsafe.Pointer(jenv)))
	param, err := jutil.GoVomCopyValue(env, jutil.Object(uintptr(unsafe.Pointer(jCaveatParam))))
	if err != nil {
		jutil.JThrowV(env, err)
		return
	}
	ctx, _, err := jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jContext))))
	if err != nil {
		jutil.JThrowV(env, err)
		return
	}
	call, err := GoCall(env, jutil.Object(uintptr(unsafe.Pointer(jCall))))
	if err != nil {
		jutil.JThrowV(env, err)
		return
	}
	caveat, err := security.NewCaveat(security.PublicKeyThirdPartyCaveat, param)
	if err != nil {
		jutil.JThrowV(env, err)
		return
	}
	if err := caveat.Validate(ctx, call); err != nil {
		jutil.JThrowV(env, err)
		return
	}
}

//export Java_io_v_v23_security_VSecurity_nativeGetSigningBlessingNames
func Java_io_v_v23_security_VSecurity_nativeGetSigningBlessingNames(jenv *C.JNIEnv, jVSecurityClass C.jclass, jCtx C.jobject, jPrincipal C.jobject, jBlessings C.jobject) C.jobjectArray {
	env := jutil.Env(uintptr(unsafe.Pointer(jenv)))
	ctx, _, err := jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jCtx))))
	if err != nil {
		jutil.JThrowV(env, err)
		return nil
	}
	principal, err := GoPrincipal(env, jutil.Object(uintptr(unsafe.Pointer(jPrincipal))))
	if err != nil {
		jutil.JThrowV(env, err)
		return nil
	}
	blessings, err := GoBlessings(env, jutil.Object(uintptr(unsafe.Pointer(jBlessings))))
	if err != nil {
		jutil.JThrowV(env, err)
		return nil
	}
	blessingStrs, _ := security.SigningBlessingNames(ctx, principal, blessings)
	jArr, err := jutil.JStringArray(env, blessingStrs)
	if err != nil {
		jutil.JThrowV(env, err)
		return nil
	}
	return C.jobjectArray(unsafe.Pointer(jArr))
}

//export Java_io_v_impl_google_lib_discovery_GlobalDiscovery_nativeNewDiscovery
func Java_io_v_impl_google_lib_discovery_GlobalDiscovery_nativeNewDiscovery(jenv *C.JNIEnv, jRuntime C.jclass, jContext C.jobject, jPath C.jstring, jMountTTL, jScanInterval C.jobject) C.jobject {
	env := jutil.Env(uintptr(unsafe.Pointer(jenv)))
	ctx, _, err := jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jContext))))
	if err != nil {
		jutil.JThrowV(env, err)
		return nil
	}
	path := jutil.GoString(env, jutil.Object(uintptr(unsafe.Pointer(jPath))))
	mountTTL, err := jutil.GoDuration(env, jutil.Object(uintptr(unsafe.Pointer(jMountTTL))))
	if err != nil {
		jutil.JThrowV(env, err)
		return nil
	}
	scanInterval, err := jutil.GoDuration(env, jutil.Object(uintptr(unsafe.Pointer(jScanInterval))))
	if err != nil {
		jutil.JThrowV(env, err)
		return nil
	}

	discovery, err := gdiscovery.NewWithTTL(ctx, path, mountTTL, scanInterval)
	if err != nil {
		jutil.JThrowV(env, err)
		return nil
	}
	jDiscovery, err := JavaDiscovery(env, discovery)
	if err != nil {
		jutil.JThrowV(env, err)
		return nil
	}
	return C.jobject(unsafe.Pointer(jDiscovery))
}

//export Java_io_v_impl_google_lib_discovery_FactoryUtil_injectMockPlugin
func Java_io_v_impl_google_lib_discovery_FactoryUtil_injectMockPlugin(jenv *C.JNIEnv, _ C.jclass, jCtx C.jobject) {
	env := jutil.Env(uintptr(unsafe.Pointer(jenv)))
	ctx, _, err := jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jCtx))))
	if err != nil {
		jutil.JThrowV(env, err)
		return
	}
	injectMockPlugin(ctx)
}

func unmountArgs(env jutil.Env, jName, jServer C.jstring, jContext, jOptions C.jobject) (name, server string, context *context.T, options []naming.NamespaceOpt, err error) {
	name = jutil.GoString(env, jutil.Object(uintptr(unsafe.Pointer(jName))))
	server = jutil.GoString(env, jutil.Object(uintptr(unsafe.Pointer(jServer))))
	context, _, err = jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jContext))))
	if err != nil {
		return
	}
	options, err = goNamespaceOptions(env, jutil.Object(uintptr(unsafe.Pointer(jOptions))))
	return
}

//export Java_io_v_impl_google_lib_discovery_DiscoveryImpl_nativeAdvertise
func Java_io_v_impl_google_lib_discovery_DiscoveryImpl_nativeAdvertise(jenv *C.JNIEnv, _ C.jobject, goRef C.jlong, jCtx C.jobject, jAdObj C.jobject, jVisibilityObj C.jobject, jCbObj C.jobject) {
	env := jutil.Env(uintptr(unsafe.Pointer(jenv)))
	ctx, _, err := jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jCtx))))
	if err != nil {
		jutil.JThrowV(env, err)
		return
	}

	d := *(*discovery.T)(jutil.GoRefValue(jutil.Ref(goRef)))
	jAd := jutil.Object(uintptr(unsafe.Pointer(jAdObj)))
	jVisibility := jutil.Object(uintptr(unsafe.Pointer(jVisibilityObj)))

	var ad discovery.Advertisement
	if err := jutil.GoVomCopy(env, jAd, jAdvertisementClass, &ad); err != nil {
		jutil.JThrowV(env, err)
		return
	}

	jVisibilityList, err := jutil.GoObjectList(env, jVisibility)
	if err != nil {
		jutil.JThrowV(env, err)
		return
	}
	visibility := make([]security.BlessingPattern, len(jVisibilityList))
	for i, jPattern := range jVisibilityList {
		if err := jutil.GoVomCopy(env, jPattern, jBlessingPatternClass, &visibility[i]); err != nil {
			jutil.JThrowV(env, err)
			return
		}
	}

	done, err := d.Advertise(ctx, &ad, visibility)
	if err != nil {
		jutil.JThrowV(env, err)
		return
	}

	// Copy back the advertisement id.
	jId, err := jutil.JVomCopy(env, &ad.Id, jAdIdClass)
	if err != nil {
		jutil.JThrowV(env, err)
		return
	}
	if err = jutil.CallVoidMethod(env, jAd, "setId", []jutil.Sign{adIdSign}, jId); err != nil {
		jutil.JThrowV(env, err)
		return
	}

	jCb := jutil.Object(uintptr(unsafe.Pointer(jCbObj)))
	jutil.DoAsyncCall(env, jCb, func() (jutil.Object, error) {
		<-done
		return jutil.NullObject, nil
	})
}

func globArgs(env jutil.Env, jContext C.jobject, jPattern C.jstring, jOptions C.jobject) (context *context.T, cancel func(), pattern string, opts []naming.NamespaceOpt, err error) {
	context, cancel, err = jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jContext))))
	if err != nil {
		return
	}
	opts, err = goNamespaceOptions(env, jutil.Object(uintptr(unsafe.Pointer(jOptions))))
	if err != nil {
		return
	}
	pattern = jutil.GoString(env, jutil.Object(uintptr(unsafe.Pointer(jPattern))))
	return
}

func getPermissionsArgs(env jutil.Env, jContext C.jobject, jName C.jstring, jOptions C.jobject) (context *context.T, name string, options []naming.NamespaceOpt, err error) {
	context, _, err = jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jContext))))
	if err != nil {
		return
	}
	options, err = goNamespaceOptions(env, jutil.Object(uintptr(unsafe.Pointer(jOptions))))
	if err != nil {
		return
	}
	name = jutil.GoString(env, jutil.Object(uintptr(unsafe.Pointer(jName))))
	return
}

func resolveToMountTableArgs(env jutil.Env, jContext, jOptions C.jobject, jName C.jstring) (context *context.T, options []naming.NamespaceOpt, name string, err error) {
	context, _, err = jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jContext))))
	if err != nil {
		return
	}
	options, err = goNamespaceOptions(env, jutil.Object(uintptr(unsafe.Pointer(jOptions))))
	if err != nil {
		return
	}
	name = jutil.GoString(env, jutil.Object(uintptr(unsafe.Pointer(jName))))
	return
}

func deleteArgs(env jutil.Env, jContext, jOptions C.jobject, jName C.jstring, jDeleteSubtree C.jboolean) (context *context.T, options []naming.NamespaceOpt, name string, deleteSubtree bool, err error) {
	context, _, err = jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jContext))))
	if err != nil {
		return
	}
	options, err = goNamespaceOptions(env, jutil.Object(uintptr(unsafe.Pointer(jOptions))))
	if err != nil {
		return
	}
	name = jutil.GoString(env, jutil.Object(uintptr(unsafe.Pointer(jName))))
	deleteSubtree = jDeleteSubtree == C.JNI_TRUE
	return
}

//export Java_io_v_v23_syncbase_DatabaseImpl_nativeListenForInvites
func Java_io_v_v23_syncbase_DatabaseImpl_nativeListenForInvites(jenv *C.JNIEnv, jDatabase C.jobject, jContext C.jobject, jInviteHandler C.jobject) {
	env := jutil.Env(uintptr(unsafe.Pointer(jenv)))
	database := jutil.Object(uintptr(unsafe.Pointer(jDatabase)))
	handler := jutil.Object(uintptr(unsafe.Pointer(jInviteHandler)))

	ctx, _, err := jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jContext))))
	if err != nil {
		jutil.JThrowV(env, err)
		return
	}

	jDbId, err := jutil.CallObjectMethod(env, database, "id", nil, idSign)
	if err != nil {
		jutil.JThrowV(env, err)
		return
	}
	dbName, err := jutil.CallStringMethod(env, jDbId, "getName", nil)
	if err != nil {
		jutil.JThrowV(env, err)
		return
	}
	dbBlessing, err := jutil.CallStringMethod(env, jDbId, "getBlessing", nil)
	if err != nil {
		jutil.JThrowV(env, err)
		return
	}

	dbId := wire.Id{Name: dbName, Blessing: dbBlessing}
	// Note: There is no need to use a buffered channel here.  ListenForInvites
	// spawns a goroutine for this listener that acts as an infinite buffer so we can
	// process invites at our own pace.
	ch := make(chan discovery.Invite)
	if err := discovery.ListenForInvites(ctx, dbId, ch); err != nil {
		jutil.JThrowV(env, err)
		return
	}

	handler = jutil.NewGlobalRef(env, handler)
	go func() {
		for invite := range ch {
			if err := handleInvite(invite, handler); err != nil {
				// TODO(mattr): We should cancel the stream and return an error to
				// the user here.
				ctx.Errorf("couldn't call invite handler: %v", err)
			}
		}
		env, free := jutil.GetEnv()
		jutil.DeleteGlobalRef(env, handler)
		free()
	}()
}

func setPermissionsArgs(env jutil.Env, jContext, jPermissions C.jobject, jName, jVersion C.jstring, jOptions C.jobject) (context *context.T, permissions access.Permissions, name, version string, options []naming.NamespaceOpt, err error) {
	context, _, err = jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jContext))))
	if err != nil {
		return
	}
	err = jutil.GoVomCopy(env, jutil.Object(uintptr(unsafe.Pointer(jPermissions))), jPermissionsClass, &permissions)
	if err != nil {
		return
	}
	options, err = goNamespaceOptions(env, jutil.Object(uintptr(unsafe.Pointer(jOptions))))
	name = jutil.GoString(env, jutil.Object(uintptr(unsafe.Pointer(jName))))
	version = jutil.GoString(env, jutil.Object(uintptr(unsafe.Pointer(jVersion))))
	return
}

func mountArgs(env jutil.Env, jContext C.jobject, jName, jServer C.jstring, jDuration, jOptions C.jobject) (context *context.T, name, server string, duration time.Duration, options []naming.NamespaceOpt, err error) {
	context, _, err = jcontext.GoContext(env, jutil.Object(uintptr(unsafe.Pointer(jContext))))
	if err != nil {
		return
	}
	name = jutil.GoString(env, jutil.Object(uintptr(unsafe.Pointer(jName))))
	server = jutil.GoString(env, jutil.Object(uintptr(unsafe.Pointer(jServer))))
	duration, err = jutil.GoDuration(env, jutil.Object(uintptr(unsafe.Pointer(jDuration))))
	if err != nil {
		return
	}
	options, err = goNamespaceOptions(env, jutil.Object(uintptr(unsafe.Pointer(jOptions))))
	return
}

func (c *callImpl) Context() *context.T {
	env, freeFunc := jutil.GetEnv()
	defer freeFunc()
	contextSign := jutil.ClassSign("io.v.v23.context.VContext")
	jCtx, err := jutil.CallObjectMethod(env, c.jCall, "context", nil, contextSign)
	if err != nil {
		log.Printf("Couldn't get Java Vanadium context: %v", err)
	}
	ctx, _, err := jcontext.GoContext(env, jCtx)
	if err != nil {
		log.Printf("Couldn't convert Java Vanadium context to Go: %v", err)
	}
	return ctx
}