#include "configfile.h"
#include "plugin.h"
+#include "daemon/utils_cache.h"
+
typedef struct {
char *addr;
char *port;
static size_t listeners_num;
}
+using collectd::Collectd;
+
+using collectd::DispatchValuesRequest;
+using collectd::DispatchValuesReply;
+using collectd::ListValuesRequest;
+using collectd::ListValuesReply;
+
using google::protobuf::util::TimeUtil;
/*
sstrncpy(vl->type, s.c_str(), sizeof(vl->type));
s = msg.plugin_instance();
- if (s.length())
- sstrncpy(vl->plugin_instance, s.c_str(), sizeof(vl->plugin_instance));
+ sstrncpy(vl->plugin_instance, s.c_str(), sizeof(vl->plugin_instance));
s = msg.type_instance();
- if (s.length())
- sstrncpy(vl->type_instance, s.c_str(), sizeof(vl->type_instance));
+ sstrncpy(vl->type_instance, s.c_str(), sizeof(vl->type_instance));
value_t *values = NULL;
size_t values_len = 0;
break;
default:
status = grpc::Status(grpc::StatusCode::INVALID_ARGUMENT,
- grpc::string("unkown value type"));
+ grpc::string("unknown value type"));
break;
}
} /* unmarshal_value_list() */
/*
- * request call objects
+ * request call-backs and call objects
*/
+static grpc::Status Process(grpc::ServerContext *ctx,
+ DispatchValuesRequest request, DispatchValuesReply *reply)
+{
+ value_list_t vl = VALUE_LIST_INIT;
+ auto status = unmarshal_value_list(request.values(), &vl);
+ if (!status.ok())
+ return status;
+
+ if (plugin_dispatch_values(&vl))
+ status = grpc::Status(grpc::StatusCode::INTERNAL,
+ grpc::string("failed to enqueue values for writing"));
+ return status;
+} /* Process(): DispatchValues */
+
+static grpc::Status Process(grpc::ServerContext *ctx,
+ ListValuesRequest request, ListValuesReply *reply)
+{
+ char **names = NULL;
+ cdtime_t *times = NULL;
+ size_t i, n = 0;
+
+ if (uc_get_names(&names, ×, &n))
+ return grpc::Status(grpc::StatusCode::INTERNAL,
+ grpc::string("failed to retrieve values"));
+
+ for (i = 0; i < n; i++) {
+ auto v = reply->add_value();
+ auto t = TimeUtil::NanosecondsToTimestamp(CDTIME_T_TO_NS(times[i]));
+ v->set_name(names[i]);
+ v->set_allocated_time(new google::protobuf::Timestamp(t));
+ sfree(names[i]);
+ }
+ sfree(names);
+ sfree(times);
+
+ return grpc::Status::OK;
+} /* Process(): ListValues */
+
class Call
{
public:
- Call(collectd::Collectd::AsyncService *service, grpc::ServerCompletionQueue *cq)
+ Call(Collectd::AsyncService *service, grpc::ServerCompletionQueue *cq)
: service_(service), cq_(cq), status_(CREATE)
{ }
virtual void Process() = 0;
virtual void Finish() = 0;
- collectd::Collectd::AsyncService *service_;
+ Collectd::AsyncService *service_;
grpc::ServerCompletionQueue *cq_;
grpc::ServerContext ctx_;
CallStatus status_;
}; /* class Call */
-class DispatchValuesCall : public Call
+template<typename RequestT, typename ReplyT>
+class RpcCall final : public Call
{
+ typedef void (Collectd::AsyncService::*CreatorT)(grpc::ServerContext *,
+ RequestT *, grpc::ServerAsyncResponseWriter<ReplyT> *,
+ grpc::CompletionQueue *, grpc::ServerCompletionQueue *, void *);
+
public:
- DispatchValuesCall(collectd::Collectd::AsyncService *service, grpc::ServerCompletionQueue *cq)
- : Call(service, cq), responder_(&ctx_)
+ RpcCall(Collectd::AsyncService *service,
+ CreatorT creator, grpc::ServerCompletionQueue *cq)
+ : Call(service, cq), creator_(creator), responder_(&ctx_)
{
Handle();
- } /* DispatchValuesCall() */
+ } /* RpcCall() */
- virtual ~DispatchValuesCall()
+ virtual ~RpcCall()
{ }
private:
void Create()
{
- service_->RequestDispatchValues(&ctx_, &request_, &responder_, cq_, cq_, this);
+ (service_->*creator_)(&ctx_, &request_, &responder_, cq_, cq_, this);
} /* Create() */
void Process()
{
// Add a new request object to the queue.
- new DispatchValuesCall(service_, cq_);
-
- value_list_t vl = VALUE_LIST_INIT;
- auto status = unmarshal_value_list(request_.values(), &vl);
- if (!status.ok()) {
- responder_.Finish(reply_, status, this);
- return;
- }
-
- if (plugin_dispatch_values(&vl))
- status = grpc::Status(grpc::StatusCode::INTERNAL,
- grpc::string("failed to enqueue values for writing"));
-
+ new RpcCall<RequestT, ReplyT>(service_, creator_, cq_);
+ grpc::Status status = ::Process(&ctx_, request_, &reply_);
responder_.Finish(reply_, status, this);
} /* Process() */
delete this;
} /* Finish() */
- collectd::DispatchValuesRequest request_;
- collectd::DispatchValuesReply reply_;
+ CreatorT creator_;
+
+ RequestT request_;
+ ReplyT reply_;
- grpc::ServerAsyncResponseWriter<collectd::DispatchValuesReply> responder_;
-};
+ grpc::ServerAsyncResponseWriter<ReplyT> responder_;
+}; /* class RpcCall */
/*
* gRPC server implementation
}
}
- builder.RegisterAsyncService(&service_);
+ builder.RegisterService(&service_);
cq_ = builder.AddCompletionQueue();
server_ = builder.BuildAndStart();
} /* Start() */
void Mainloop()
{
// Register request types.
- new DispatchValuesCall(&service_, cq_.get());
+ new RpcCall<DispatchValuesRequest, DispatchValuesReply>(&service_,
+ &Collectd::AsyncService::RequestDispatchValues, cq_.get());
+ new RpcCall<ListValuesRequest, ListValuesReply>(&service_,
+ &Collectd::AsyncService::RequestListValues, cq_.get());
while (true) {
void *req = NULL;
} /* Mainloop() */
private:
- collectd::Collectd::AsyncService service_;
+ Collectd::AsyncService service_;
std::unique_ptr<grpc::Server> server_;
std::unique_ptr<grpc::ServerCompletionQueue> cq_;