Files
integration/luprex/core/cpp/lpxserver.cpp

134 lines
4.3 KiB
C++

#include "lpxserver.hpp"
#include "world.hpp"
#include "drivenengine.hpp"
#include "luaconsole.hpp"
#include "util.hpp"
#include "printbuffer.hpp"
#include <memory>
class ServerClient {
public:
int64_t actor_id_;
UniqueChannel channel_;
UniqueWorld sync_;
};
using UniqueServerClient = std::unique_ptr<ServerClient>;
using ServerClientVector = std::vector<UniqueServerClient>;
class LpxServer : public DrivenEngine {
public:
UniqueWorld master_;
LuaConsole console_;
ServerClientVector clients_;
PrintChanneler print_channeler_;
int64_t admin_id_;
public:
virtual void event_init(int argc, char *argv[]) {
// Create the master world model.
master_.reset(new World(util::WORLD_TYPE_MASTER));
// Create an actor for administrative commands.
admin_id_ = master_->create_login_actor();
// Print out admin ID for debugging purposes.
stdostream() << "Admin actor id = " << admin_id_ << std::endl;
// Enable listening on port 8085.
listen_port(8085);
// Set the console prompt.
get_stdio_channel()->set_prompt(console_.get_prompt());
}
void do_lua_command(const util::StringVec &words) {
if (words.size() != 2) {
stdostream() << "lua command (lua) takes a single string" << std::endl;
return;
}
const std::string &exp = words[1];
InvocationData dummyresult;
Invocation inv(Invocation::KIND_LUA, admin_id_, admin_id_, exp, dummyresult);
master_->invoke(inv);
}
void do_syntax_command(const util::StringVec &words) {
stdostream() << "Syntax Error: ";
for (int i = 1; i < int(words.size()); i++) {
stdostream() << words[i] << " ";
}
stdostream() << std::endl;
}
void do_quit_command(const util::StringVec &words) {
if (words.size() != 1) {
stdostream() << "quit command takes no arguments" << std::endl;
return;
}
stop_driver();
}
void do_command(const util::StringVec &words) {
if (words.empty()) return;
else if (words[0] == "lua") do_lua_command(words);
else if (words[0] == "syntax") do_syntax_command(words);
else if (words[0] == "quit") do_quit_command(words);
else {
stdostream() << "Unknown command: " << words[0] << std::endl;
}
}
bool handle_invocation(ServerClient *sclient) {
return false;
}
virtual void event_update() {
// Check for keyboard input on stdin.
while (true) {
std::string line = get_stdio_channel()->in()->readline();
if (line == "") break;
console_.add(line);
get_stdio_channel()->set_prompt(console_.get_prompt());
do_command(console_.get_command());
}
// Anything in the administrator printbuffer should go to stdostream.
if (print_channeler_.channel(master_->get_printbuffer(admin_id_), stdostream())) {
master_->invoke(print_channeler_.invocation(admin_id_));
}
// Check for new incoming channels, set up client structures.
while (true) {
UniqueChannel chan = new_incoming_channel();
if (chan == nullptr) break;
ServerClient *client = new ServerClient;
client->actor_id_ = master_->create_login_actor();
client->channel_ = std::move(chan);
client->sync_.reset(new World(util::WORLD_TYPE_S_SYNC));
client->sync_->create_login_actor();
clients_.emplace_back(client);
stdostream() << "New client: actor id=" << client->actor_id_ << std::endl;
}
// Traverse all existing channels, process any communication.
ServerClientVector keep;
for (UniqueServerClient &client : clients_) {
if (client->channel_->closed()) {
stdostream() << "Client closed: actor id=" << client->actor_id_ << std::endl;
continue;
}
// Check for received invocations.
while (handle_invocation(client.get()));
// Transfer the client to the keep vector.
keep.emplace_back(std::move(client));
}
clients_ = std::move(keep);
}
};
UniqueDrivenEngine make_LpxServer() {
return UniqueDrivenEngine(new LpxServer);
}