--- /dev/null
+declare module "v8" {
+ import { Readable } from "stream";
+
+ interface HeapSpaceInfo {
+ space_name: string;
+ space_size: number;
+ space_used_size: number;
+ space_available_size: number;
+ physical_space_size: number;
+ }
+
+ // ** Signifies if the --zap_code_space option is enabled or not. 1 == enabled, 0 == disabled. */
+ type DoesZapCodeSpaceFlag = 0 | 1;
+
+ interface HeapInfo {
+ total_heap_size: number;
+ total_heap_size_executable: number;
+ total_physical_size: number;
+ total_available_size: number;
+ used_heap_size: number;
+ heap_size_limit: number;
+ malloced_memory: number;
+ peak_malloced_memory: number;
+ does_zap_garbage: DoesZapCodeSpaceFlag;
+ number_of_native_contexts: number;
+ number_of_detached_contexts: number;
+ }
+
+ interface HeapCodeStatistics {
+ code_and_metadata_size: number;
+ bytecode_and_metadata_size: number;
+ external_script_source_size: number;
+ }
+
+ /**
+ * Returns an integer representing a "version tag" derived from the V8 version, command line flags and detected CPU features.
+ * This is useful for determining whether a vm.Script cachedData buffer is compatible with this instance of V8.
+ */
+ function cachedDataVersionTag(): number;
+
+ function getHeapStatistics(): HeapInfo;
+ function getHeapSpaceStatistics(): HeapSpaceInfo[];
+ function setFlagsFromString(flags: string): void;
+ /**
+ * Generates a snapshot of the current V8 heap and returns a Readable
+ * Stream that may be used to read the JSON serialized representation.
+ * This conversation was marked as resolved by joyeecheung
+ * This JSON stream format is intended to be used with tools such as
+ * Chrome DevTools. The JSON schema is undocumented and specific to the
+ * V8 engine, and may change from one version of V8 to the next.
+ */
+ function getHeapSnapshot(): Readable;
+
+ /**
+ *
+ * @param fileName The file path where the V8 heap snapshot is to be
+ * saved. If not specified, a file name with the pattern
+ * `'Heap-${yyyymmdd}-${hhmmss}-${pid}-${thread_id}.heapsnapshot'` will be
+ * generated, where `{pid}` will be the PID of the Node.js process,
+ * `{thread_id}` will be `0` when `writeHeapSnapshot()` is called from
+ * the main Node.js thread or the id of a worker thread.
+ */
+ function writeHeapSnapshot(fileName?: string): string;
+
+ function getHeapCodeStatistics(): HeapCodeStatistics;
+
+ class Serializer {
+ /**
+ * Writes out a header, which includes the serialization format version.
+ */
+ writeHeader(): void;
+
+ /**
+ * Serializes a JavaScript value and adds the serialized representation to the internal buffer.
+ * This throws an error if value cannot be serialized.
+ */
+ writeValue(val: any): boolean;
+
+ /**
+ * Returns the stored internal buffer.
+ * This serializer should not be used once the buffer is released.
+ * Calling this method results in undefined behavior if a previous write has failed.
+ */
+ releaseBuffer(): Buffer;
+
+ /**
+ * Marks an ArrayBuffer as having its contents transferred out of band.\
+ * Pass the corresponding ArrayBuffer in the deserializing context to deserializer.transferArrayBuffer().
+ */
+ transferArrayBuffer(id: number, arrayBuffer: ArrayBuffer): void;
+
+ /**
+ * Write a raw 32-bit unsigned integer.
+ */
+ writeUint32(value: number): void;
+
+ /**
+ * Write a raw 64-bit unsigned integer, split into high and low 32-bit parts.
+ */
+ writeUint64(hi: number, lo: number): void;
+
+ /**
+ * Write a JS number value.
+ */
+ writeDouble(value: number): void;
+
+ /**
+ * Write raw bytes into the serializer’s internal buffer.
+ * The deserializer will require a way to compute the length of the buffer.
+ */
+ writeRawBytes(buffer: NodeJS.TypedArray): void;
+ }
+
+ /**
+ * A subclass of `Serializer` that serializes `TypedArray` (in particular `Buffer`) and `DataView` objects as host objects,
+ * and only stores the part of their underlying `ArrayBuffers` that they are referring to.
+ */
+ class DefaultSerializer extends Serializer {
+ }
+
+ class Deserializer {
+ constructor(data: NodeJS.TypedArray);
+ /**
+ * Reads and validates a header (including the format version).
+ * May, for example, reject an invalid or unsupported wire format.
+ * In that case, an Error is thrown.
+ */
+ readHeader(): boolean;
+
+ /**
+ * Deserializes a JavaScript value from the buffer and returns it.
+ */
+ readValue(): any;
+
+ /**
+ * Marks an ArrayBuffer as having its contents transferred out of band.
+ * Pass the corresponding `ArrayBuffer` in the serializing context to serializer.transferArrayBuffer()
+ * (or return the id from serializer._getSharedArrayBufferId() in the case of SharedArrayBuffers).
+ */
+ transferArrayBuffer(id: number, arrayBuffer: ArrayBuffer): void;
+
+ /**
+ * Reads the underlying wire format version.
+ * Likely mostly to be useful to legacy code reading old wire format versions.
+ * May not be called before .readHeader().
+ */
+ getWireFormatVersion(): number;
+
+ /**
+ * Read a raw 32-bit unsigned integer and return it.
+ */
+ readUint32(): number;
+
+ /**
+ * Read a raw 64-bit unsigned integer and return it as an array [hi, lo] with two 32-bit unsigned integer entries.
+ */
+ readUint64(): [number, number];
+
+ /**
+ * Read a JS number value.
+ */
+ readDouble(): number;
+
+ /**
+ * Read raw bytes from the deserializer’s internal buffer.
+ * The length parameter must correspond to the length of the buffer that was passed to serializer.writeRawBytes().
+ */
+ readRawBytes(length: number): Buffer;
+ }
+
+ /**
+ * A subclass of `Serializer` that serializes `TypedArray` (in particular `Buffer`) and `DataView` objects as host objects,
+ * and only stores the part of their underlying `ArrayBuffers` that they are referring to.
+ */
+ class DefaultDeserializer extends Deserializer {
+ }
+
+ /**
+ * Uses a `DefaultSerializer` to serialize value into a buffer.
+ */
+ function serialize(value: any): Buffer;
+
+ /**
+ * Uses a `DefaultDeserializer` with default options to read a JS value from a buffer.
+ */
+ function deserialize(data: NodeJS.TypedArray): any;
+}
git://repos.xcallymotion.com / motion2.git / blobdiff