diff options
Diffstat (limited to 'src/node/ext/channel.cc')
-rw-r--r-- | src/node/ext/channel.cc | 272 |
1 files changed, 0 insertions, 272 deletions
diff --git a/src/node/ext/channel.cc b/src/node/ext/channel.cc deleted file mode 100644 index fc085fa011..0000000000 --- a/src/node/ext/channel.cc +++ /dev/null @@ -1,272 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include <vector> - -#include "grpc/support/log.h" - -#include <nan.h> -#include <node.h> -#include "call.h" -#include "channel.h" -#include "channel_credentials.h" -#include "completion_queue.h" -#include "grpc/grpc.h" -#include "grpc/grpc_security.h" -#include "timeval.h" - -namespace grpc { -namespace node { - -using Nan::Callback; -using Nan::EscapableHandleScope; -using Nan::HandleScope; -using Nan::Maybe; -using Nan::MaybeLocal; -using Nan::ObjectWrap; -using Nan::Persistent; -using Nan::Utf8String; - -using v8::Array; -using v8::Exception; -using v8::Function; -using v8::FunctionTemplate; -using v8::Integer; -using v8::Local; -using v8::Number; -using v8::Object; -using v8::String; -using v8::Value; - -Callback *Channel::constructor; -Persistent<FunctionTemplate> Channel::fun_tpl; - -bool ParseChannelArgs(Local<Value> args_val, - grpc_channel_args **channel_args_ptr) { - if (args_val->IsUndefined() || args_val->IsNull()) { - *channel_args_ptr = NULL; - return true; - } - if (!args_val->IsObject()) { - *channel_args_ptr = NULL; - return false; - } - grpc_channel_args *channel_args = - reinterpret_cast<grpc_channel_args *>(malloc(sizeof(grpc_channel_args))); - *channel_args_ptr = channel_args; - Local<Object> args_hash = Nan::To<Object>(args_val).ToLocalChecked(); - Local<Array> keys = Nan::GetOwnPropertyNames(args_hash).ToLocalChecked(); - channel_args->num_args = keys->Length(); - channel_args->args = reinterpret_cast<grpc_arg *>( - calloc(channel_args->num_args, sizeof(grpc_arg))); - for (unsigned int i = 0; i < channel_args->num_args; i++) { - Local<Value> key = Nan::Get(keys, i).ToLocalChecked(); - Utf8String key_str(key); - if (*key_str == NULL) { - // Key string onversion failed - return false; - } - Local<Value> value = Nan::Get(args_hash, key).ToLocalChecked(); - if (value->IsInt32()) { - channel_args->args[i].type = GRPC_ARG_INTEGER; - channel_args->args[i].value.integer = Nan::To<int32_t>(value).FromJust(); - } else if (value->IsString()) { - Utf8String val_str(value); - channel_args->args[i].type = GRPC_ARG_STRING; - channel_args->args[i].value.string = - reinterpret_cast<char *>(calloc(val_str.length() + 1, sizeof(char))); - memcpy(channel_args->args[i].value.string, *val_str, - val_str.length() + 1); - } else { - // The value does not match either of the accepted types - return false; - } - channel_args->args[i].key = - reinterpret_cast<char *>(calloc(key_str.length() + 1, sizeof(char))); - memcpy(channel_args->args[i].key, *key_str, key_str.length() + 1); - } - return true; -} - -void DeallocateChannelArgs(grpc_channel_args *channel_args) { - if (channel_args == NULL) { - return; - } - for (size_t i = 0; i < channel_args->num_args; i++) { - if (channel_args->args[i].key == NULL) { - /* NULL key implies that this argument and all subsequent arguments failed - * to parse */ - break; - } - free(channel_args->args[i].key); - if (channel_args->args[i].type == GRPC_ARG_STRING) { - free(channel_args->args[i].value.string); - } - } - free(channel_args->args); - free(channel_args); -} - -Channel::Channel(grpc_channel *channel) : wrapped_channel(channel) {} - -Channel::~Channel() { - gpr_log(GPR_DEBUG, "Destroying channel"); - if (wrapped_channel != NULL) { - grpc_channel_destroy(wrapped_channel); - } -} - -void Channel::Init(Local<Object> exports) { - Nan::HandleScope scope; - Local<FunctionTemplate> tpl = Nan::New<FunctionTemplate>(New); - tpl->SetClassName(Nan::New("Channel").ToLocalChecked()); - tpl->InstanceTemplate()->SetInternalFieldCount(1); - Nan::SetPrototypeMethod(tpl, "close", Close); - Nan::SetPrototypeMethod(tpl, "getTarget", GetTarget); - Nan::SetPrototypeMethod(tpl, "getConnectivityState", GetConnectivityState); - Nan::SetPrototypeMethod(tpl, "watchConnectivityState", - WatchConnectivityState); - fun_tpl.Reset(tpl); - Local<Function> ctr = Nan::GetFunction(tpl).ToLocalChecked(); - Nan::Set(exports, Nan::New("Channel").ToLocalChecked(), ctr); - constructor = new Callback(ctr); -} - -bool Channel::HasInstance(Local<Value> val) { - HandleScope scope; - return Nan::New(fun_tpl)->HasInstance(val); -} - -grpc_channel *Channel::GetWrappedChannel() { return this->wrapped_channel; } - -NAN_METHOD(Channel::New) { - if (info.IsConstructCall()) { - if (!info[0]->IsString()) { - return Nan::ThrowTypeError( - "Channel expects a string, a credential and an object"); - } - grpc_channel *wrapped_channel; - // Owned by the Channel object - Utf8String host(info[0]); - grpc_channel_credentials *creds; - if (!ChannelCredentials::HasInstance(info[1])) { - return Nan::ThrowTypeError( - "Channel's second argument must be a ChannelCredentials"); - } - ChannelCredentials *creds_object = ObjectWrap::Unwrap<ChannelCredentials>( - Nan::To<Object>(info[1]).ToLocalChecked()); - creds = creds_object->GetWrappedCredentials(); - grpc_channel_args *channel_args_ptr = NULL; - if (!ParseChannelArgs(info[2], &channel_args_ptr)) { - DeallocateChannelArgs(channel_args_ptr); - return Nan::ThrowTypeError( - "Channel options must be an object with " - "string keys and integer or string values"); - } - if (creds == NULL) { - wrapped_channel = - grpc_insecure_channel_create(*host, channel_args_ptr, NULL); - } else { - wrapped_channel = - grpc_secure_channel_create(creds, *host, channel_args_ptr, NULL); - } - DeallocateChannelArgs(channel_args_ptr); - Channel *channel = new Channel(wrapped_channel); - channel->Wrap(info.This()); - info.GetReturnValue().Set(info.This()); - return; - } else { - const int argc = 3; - Local<Value> argv[argc] = {info[0], info[1], info[2]}; - MaybeLocal<Object> maybe_instance = - Nan::NewInstance(constructor->GetFunction(), argc, argv); - if (maybe_instance.IsEmpty()) { - // There's probably a pending exception - return; - } else { - info.GetReturnValue().Set(maybe_instance.ToLocalChecked()); - } - } -} - -NAN_METHOD(Channel::Close) { - if (!HasInstance(info.This())) { - return Nan::ThrowTypeError("close can only be called on Channel objects"); - } - Channel *channel = ObjectWrap::Unwrap<Channel>(info.This()); - if (channel->wrapped_channel != NULL) { - grpc_channel_destroy(channel->wrapped_channel); - channel->wrapped_channel = NULL; - } -} - -NAN_METHOD(Channel::GetTarget) { - if (!HasInstance(info.This())) { - return Nan::ThrowTypeError( - "getTarget can only be called on Channel objects"); - } - Channel *channel = ObjectWrap::Unwrap<Channel>(info.This()); - info.GetReturnValue().Set( - Nan::New(grpc_channel_get_target(channel->wrapped_channel)) - .ToLocalChecked()); -} - -NAN_METHOD(Channel::GetConnectivityState) { - if (!HasInstance(info.This())) { - return Nan::ThrowTypeError( - "getConnectivityState can only be called on Channel objects"); - } - Channel *channel = ObjectWrap::Unwrap<Channel>(info.This()); - int try_to_connect = (int)info[0]->Equals(Nan::True()); - info.GetReturnValue().Set(grpc_channel_check_connectivity_state( - channel->wrapped_channel, try_to_connect)); -} - -NAN_METHOD(Channel::WatchConnectivityState) { - if (!HasInstance(info.This())) { - return Nan::ThrowTypeError( - "watchConnectivityState can only be called on Channel objects"); - } - if (!info[0]->IsUint32()) { - return Nan::ThrowTypeError( - "watchConnectivityState's first argument must be a channel state"); - } - if (!(info[1]->IsNumber() || info[1]->IsDate())) { - return Nan::ThrowTypeError( - "watchConnectivityState's second argument must be a date or a number"); - } - if (!info[2]->IsFunction()) { - return Nan::ThrowTypeError( - "watchConnectivityState's third argument must be a callback"); - } - grpc_connectivity_state last_state = static_cast<grpc_connectivity_state>( - Nan::To<uint32_t>(info[0]).FromJust()); - double deadline = Nan::To<double>(info[1]).FromJust(); - Local<Function> callback_func = info[2].As<Function>(); - Nan::Callback *callback = new Callback(callback_func); - Channel *channel = ObjectWrap::Unwrap<Channel>(info.This()); - unique_ptr<OpVec> ops(new OpVec()); - grpc_channel_watch_connectivity_state( - channel->wrapped_channel, last_state, MillisecondsToTimespec(deadline), - GetCompletionQueue(), - new struct tag(callback, ops.release(), NULL, Nan::Null())); - CompletionQueueNext(); -} - -} // namespace node -} // namespace grpc |