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async_wrap.h
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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
#ifndef SRC_ASYNC_WRAP_H_
#define SRC_ASYNC_WRAP_H_
#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#include "base_object.h"
#include "v8.h"
#include <cstdint>
namespace node {
#define NODE_ASYNC_NON_CRYPTO_PROVIDER_TYPES(V) \
V(NONE) \
V(DIRHANDLE) \
V(DNSCHANNEL) \
V(ELDHISTOGRAM) \
V(FILEHANDLE) \
V(FILEHANDLECLOSEREQ) \
V(BLOBREADER) \
V(FSEVENTWRAP) \
V(FSREQCALLBACK) \
V(FSREQPROMISE) \
V(GETADDRINFOREQWRAP) \
V(GETNAMEINFOREQWRAP) \
V(HEAPSNAPSHOT) \
V(HTTP2SESSION) \
V(HTTP2STREAM) \
V(HTTP2PING) \
V(HTTP2SETTINGS) \
V(HTTPINCOMINGMESSAGE) \
V(HTTPCLIENTREQUEST) \
V(LOCKS) \
V(JSSTREAM) \
V(JSUDPWRAP) \
V(MESSAGEPORT) \
V(PIPECONNECTWRAP) \
V(PIPESERVERWRAP) \
V(PIPEWRAP) \
V(PROCESSWRAP) \
V(PROMISE) \
V(QUERYWRAP) \
V(QUIC_ENDPOINT) \
V(QUIC_LOGSTREAM) \
V(QUIC_PACKET) \
V(QUIC_SESSION) \
V(QUIC_STREAM) \
V(QUIC_UDP) \
V(SHUTDOWNWRAP) \
V(SIGNALWRAP) \
V(STATWATCHER) \
V(STREAMPIPE) \
V(TCPCONNECTWRAP) \
V(TCPSERVERWRAP) \
V(TCPWRAP) \
V(TTYWRAP) \
V(UDPSENDWRAP) \
V(UDPWRAP) \
V(SIGINTWATCHDOG) \
V(WORKER) \
V(WORKERCPUUSAGE) \
V(WORKERHEAPSNAPSHOT) \
V(WORKERHEAPSTATISTICS) \
V(WRITEWRAP) \
V(ZLIB)
#if HAVE_OPENSSL
#define NODE_ASYNC_CRYPTO_PROVIDER_TYPES(V) \
V(CHECKPRIMEREQUEST) \
V(PBKDF2REQUEST) \
V(KEYPAIRGENREQUEST) \
V(KEYGENREQUEST) \
V(KEYEXPORTREQUEST) \
V(ARGON2REQUEST) \
V(CIPHERREQUEST) \
V(DERIVEBITSREQUEST) \
V(HASHREQUEST) \
V(RANDOMBYTESREQUEST) \
V(RANDOMPRIMEREQUEST) \
V(SCRYPTREQUEST) \
V(SIGNREQUEST) \
V(TLSWRAP) \
V(VERIFYREQUEST)
#else
#define NODE_ASYNC_CRYPTO_PROVIDER_TYPES(V)
#endif // HAVE_OPENSSL
#define NODE_ASYNC_PROVIDER_TYPES(V) \
NODE_ASYNC_NON_CRYPTO_PROVIDER_TYPES(V) \
NODE_ASYNC_CRYPTO_PROVIDER_TYPES(V)
class Environment;
class DestroyParam;
class ExternalReferenceRegistry;
class AsyncWrap : public BaseObject {
public:
enum ProviderType {
#define V(PROVIDER) \
PROVIDER_ ## PROVIDER,
NODE_ASYNC_PROVIDER_TYPES(V)
#undef V
PROVIDERS_LENGTH,
};
AsyncWrap(Environment* env,
v8::Local<v8::Object> object,
ProviderType provider,
double execution_async_id = kInvalidAsyncId);
// This constructor creates a reusable instance where user is responsible
// to call set_provider_type() and AsyncReset() before use.
AsyncWrap(Environment* env, v8::Local<v8::Object> object);
~AsyncWrap() override;
AsyncWrap() = delete;
static constexpr double kInvalidAsyncId = -1;
static v8::Local<v8::FunctionTemplate> GetConstructorTemplate(
IsolateData* isolate_data);
inline static v8::Local<v8::FunctionTemplate> GetConstructorTemplate(
Environment* env);
static void RegisterExternalReferences(ExternalReferenceRegistry* registry);
static void CreatePerContextProperties(v8::Local<v8::Object> target,
v8::Local<v8::Value> unused,
v8::Local<v8::Context> context,
void* priv);
static void CreatePerIsolateProperties(IsolateData* isolate_data,
v8::Local<v8::ObjectTemplate> target);
static void GetAsyncId(const v8::FunctionCallbackInfo<v8::Value>& args);
static void PushAsyncContext(const v8::FunctionCallbackInfo<v8::Value>& args);
static void PopAsyncContext(const v8::FunctionCallbackInfo<v8::Value>& args);
static void ExecutionAsyncResource(
const v8::FunctionCallbackInfo<v8::Value>& args);
static void ClearAsyncIdStack(
const v8::FunctionCallbackInfo<v8::Value>& args);
static void AsyncReset(const v8::FunctionCallbackInfo<v8::Value>& args);
static void GetProviderType(const v8::FunctionCallbackInfo<v8::Value>& args);
static void QueueDestroyAsyncId(
const v8::FunctionCallbackInfo<v8::Value>& args);
static void SetCallbackTrampoline(
const v8::FunctionCallbackInfo<v8::Value>& args);
static void EmitAsyncInit(Environment* env,
v8::Local<v8::Object> object,
v8::Local<v8::String> type,
double async_id,
double trigger_async_id);
static void EmitDestroy(Environment* env, double async_id);
static void EmitBefore(Environment* env, double async_id);
static void EmitAfter(Environment* env, double async_id);
static void EmitPromiseResolve(Environment* env, double async_id);
void EmitDestroy(bool from_gc = false);
void EmitTraceAsyncStart() const;
void EmitTraceEventBefore();
static void EmitTraceEventAfter(ProviderType type, double async_id);
void EmitTraceEventDestroy();
static void DestroyAsyncIdsCallback(Environment* env);
inline ProviderType provider_type() const;
inline ProviderType set_provider_type(ProviderType provider);
inline double get_async_id() const;
inline double get_trigger_async_id() const;
inline v8::Local<v8::Value> context_frame() const;
void AsyncReset(v8::Local<v8::Object> resource,
double execution_async_id = kInvalidAsyncId);
// Only call these within a valid HandleScope.
v8::MaybeLocal<v8::Value> MakeCallback(const v8::Local<v8::Function> cb,
int argc,
v8::Local<v8::Value>* argv);
inline v8::MaybeLocal<v8::Value> MakeCallback(
const v8::Local<v8::Symbol> symbol,
int argc,
v8::Local<v8::Value>* argv);
inline v8::MaybeLocal<v8::Value> MakeCallback(
const v8::Local<v8::String> symbol,
int argc,
v8::Local<v8::Value>* argv);
inline v8::MaybeLocal<v8::Value> MakeCallback(
const v8::Local<v8::Name> symbol,
int argc,
v8::Local<v8::Value>* argv);
virtual std::string diagnostic_name() const;
const char* MemoryInfoName() const override;
static void WeakCallback(const v8::WeakCallbackInfo<DestroyParam> &info);
// Returns the object that 'owns' an async wrap. For example, for a
// TCP connection handle, this is the corresponding net.Socket.
v8::Local<v8::Object> GetOwner();
static v8::Local<v8::Object> GetOwner(Environment* env,
v8::Local<v8::Object> obj);
bool IsDoneInitializing() const override;
private:
ProviderType provider_type_ = PROVIDER_NONE;
bool init_hook_ran_ = false;
// Because the values may be Reset(), cannot be made const.
double async_id_ = kInvalidAsyncId;
double trigger_async_id_ = kInvalidAsyncId;
v8::Global<v8::Value> context_frame_;
};
} // namespace node
#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#endif // SRC_ASYNC_WRAP_H_