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[clangd][remote] Add flag to set idletimeout 

By default gRPC has no idletimeout and some firewalls might drop idle
connections after a certain period. This results in idle clients
shouting into void until server resets the connection.

Differential Revision: https://reviews.llvm.org/D97536
This commit is contained in:
Kadir Cetinkaya 2021-02-22 09:49:08 +01:00
parent ad9091c5fa
commit 1a5dfb7db2
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1 changed files with 7 additions and 0 deletions
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7
clang-tools-extra/clangd/index/remote/server/Server.cpp
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@ -80,6 +80,11 @@ llvm::cl::opt<std::string> ServerAddress(
"server-address", llvm::cl::init("0.0.0.0:50051"),
llvm::cl::desc("Address of the invoked server. Defaults to 0.0.0.0:50051"));
llvm::cl::opt<size_t> IdleTimeoutSeconds(
"idle-timeout", llvm::cl::init(8 * 60),
llvm::cl::desc("Maximum time a channel may stay idle until server closes "
"the connection, in seconds. Defaults to 480."));
static Key<grpc::ServerContext *> CurrentRequest;
class RemoteIndexServer final : public v1::SymbolIndex::Service {
@ -311,6 +316,8 @@ void runServerAndWait(clangd::SymbolIndex &Index, llvm::StringRef ServerAddress,
grpc::ServerBuilder Builder;
Builder.AddListeningPort(ServerAddress.str(),
grpc::InsecureServerCredentials());
Builder.AddChannelArgument(GRPC_ARG_MAX_CONNECTION_IDLE_MS,
IdleTimeoutSeconds * 1000);
Builder.RegisterService(&Service);
std::unique_ptr<grpc::Server> Server(Builder.BuildAndStart());
log("Server listening on {0}", ServerAddress);