mirror of
https://github.com/oxen-io/lokinet.git
synced 2024-10-29 11:05:43 +00:00
445 lines
9.6 KiB
C++
445 lines
9.6 KiB
C++
#include <llarp.h>
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#include <signal.h>
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#include <llarp.hpp>
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#include "logger.hpp"
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#include "math.h"
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#include "router.hpp"
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#if(__FreeBSD__)
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#include <pthread_np.h>
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#endif
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namespace llarp
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{
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Context::Context(std::ostream &stdout, bool singleThread)
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: singleThreaded(singleThread), out(stdout)
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{
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llarp::Info(LLARP_VERSION, " ", LLARP_RELEASE_MOTTO);
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}
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Context::~Context()
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{
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}
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void
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Context::progress()
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{
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out << "." << std::flush;
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}
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bool
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Context::ReloadConfig()
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{
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// llarp::Info("loading config at ", configfile);
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if(llarp_load_config(config, configfile.c_str()))
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{
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llarp_free_config(&config);
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llarp::Error("failed to load config file ", configfile);
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return false;
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}
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llarp_config_iterator iter;
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iter.user = this;
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iter.visit = &iter_config;
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llarp_config_iter(config, &iter);
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llarp::Info("config [", configfile, "] loaded");
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return true;
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}
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void
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Context::iter_config(llarp_config_iterator *itr, const char *section,
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const char *key, const char *val)
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{
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Context *ctx = static_cast< Context * >(itr->user);
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if(!strcmp(section, "router"))
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{
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if(!strcmp(key, "worker-threads") && !ctx->singleThreaded)
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{
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int workers = atoi(val);
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if(workers > 0 && ctx->worker == nullptr)
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{
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ctx->worker = llarp_init_threadpool(workers, "llarp-worker");
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}
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}
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else if(!strcmp(key, "contact-file"))
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{
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strncpy(ctx->conatctFile, val, fmin(255, strlen(val)));
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}
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else if(!strcmp(key, "net-threads"))
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{
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ctx->num_nethreads = atoi(val);
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if(ctx->num_nethreads <= 0)
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ctx->num_nethreads = 1;
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if(ctx->singleThreaded)
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ctx->num_nethreads = 0;
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}
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}
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if(!strcmp(section, "netdb"))
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{
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if(!strcmp(key, "dir"))
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{
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strncpy(ctx->nodedb_dir, val, sizeof(ctx->nodedb_dir));
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}
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}
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}
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int
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Context::LoadDatabase()
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{
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llarp_crypto_libsodium_init(&crypto);
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nodedb = llarp_nodedb_new(&crypto);
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if(!nodedb_dir[0])
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{
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llarp::Error("no nodedb_dir configured");
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return 0;
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}
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nodedb_dir[sizeof(nodedb_dir) - 1] = 0;
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if(!llarp_nodedb_ensure_dir(nodedb_dir))
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{
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llarp::Error("nodedb_dir is incorrect");
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return 0;
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}
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// llarp::Info("nodedb_dir [", nodedb_dir, "] configured!");
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ssize_t loaded = llarp_nodedb_load_dir(nodedb, nodedb_dir);
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llarp::Info("nodedb_dir loaded ", loaded, " RCs from [", nodedb_dir, "]");
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if(loaded < 0)
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{
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// shouldn't be possible
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llarp::Error("nodedb_dir directory doesn't exist");
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return 0;
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}
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return 1;
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}
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int
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Context::IterateDatabase(struct llarp_nodedb_iter i)
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{
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return llarp_nodedb_iterate_all(nodedb, i);
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}
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bool
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Context::PutDatabase(struct llarp_rc *rc)
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{
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return llarp_nodedb_put_rc(nodedb, rc);
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}
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struct llarp_rc *
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Context::GetDatabase(const byte_t *pk)
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{
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return llarp_nodedb_get_rc(nodedb, pk);
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}
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int
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Context::Setup()
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{
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llarp::Info("starting up");
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this->LoadDatabase();
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llarp_ev_loop_alloc(&mainloop);
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// ensure worker thread pool
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if(!worker && !singleThreaded)
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worker = llarp_init_threadpool(2, "llarp-worker");
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else if(singleThreaded)
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{
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llarp::Info("running in single threaded mode");
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worker = llarp_init_same_process_threadpool();
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}
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// ensure netio thread
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if(singleThreaded)
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{
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logic = llarp_init_single_process_logic(worker);
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}
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else
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logic = llarp_init_logic();
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router = llarp_init_router(worker, mainloop, logic);
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if(!llarp_configure_router(router, config))
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{
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llarp::Error("Failed to configure router");
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return 1;
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}
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if(custom_dht_func)
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{
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llarp::Info("using custom dht function");
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llarp_dht_set_msg_handler(router->dht, custom_dht_func);
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}
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// set nodedb, load our RC, establish DHT
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llarp_run_router(router, nodedb);
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return 0; // success
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}
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int
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Context::Run()
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{
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// just check to make sure it's not already set up (either this or we add a
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// bool and/or add another function)
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if(!this->router)
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{
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// set up all requirements
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if(this->Setup())
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{
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llarp::Error("Failed to setup router");
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return 1;
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}
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}
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// run net io thread
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if(singleThreaded)
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{
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llarp::Info("running mainloop");
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llarp_ev_loop_run_single_process(mainloop, worker, logic);
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}
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else
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{
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auto netio = mainloop;
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while(num_nethreads--)
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{
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netio_threads.emplace_back([netio]() { llarp_ev_loop_run(netio); });
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#if(__APPLE__ && __MACH__)
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#elif(__FreeBSD__)
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pthread_set_name_np(netio_threads.back().native_handle(),
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"llarp-netio");
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#else
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pthread_setname_np(netio_threads.back().native_handle(), "llarp-netio");
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#endif
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}
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llarp::Info("running mainloop");
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llarp_logic_mainloop(logic);
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}
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return 0;
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}
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void
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Context::HandleSignal(int sig)
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{
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if(sig == SIGINT)
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{
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llarp::Info("SIGINT");
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SigINT();
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}
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if(sig == SIGHUP)
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{
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llarp::Info("SIGHUP");
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ReloadConfig();
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}
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}
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void
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Context::SigINT()
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{
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Close();
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}
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void
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Context::Close()
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{
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llarp::Debug("stop router");
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if(router)
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llarp_stop_router(router);
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llarp::Debug("stop workers");
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if(worker)
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llarp_threadpool_stop(worker);
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llarp::Debug("join workers");
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if(worker)
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llarp_threadpool_join(worker);
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llarp::Debug("stop logic");
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if(logic)
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llarp_logic_stop(logic);
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llarp::Debug("free config");
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llarp_free_config(&config);
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llarp::Debug("free workers");
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llarp_free_threadpool(&worker);
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llarp::Debug("free nodedb");
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llarp_nodedb_free(&nodedb);
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for(size_t i = 0; i < netio_threads.size(); ++i)
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{
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if(mainloop)
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{
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llarp::Debug("stopping event loop thread ", i);
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llarp_ev_loop_stop(mainloop);
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}
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}
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llarp::Debug("free router");
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llarp_free_router(&router);
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llarp::Debug("free logic");
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llarp_free_logic(&logic);
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for(auto &t : netio_threads)
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{
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llarp::Debug("join netio thread");
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t.join();
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}
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netio_threads.clear();
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llarp::Debug("free mainloop");
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llarp_ev_loop_free(&mainloop);
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}
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bool
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Context::LoadConfig(const std::string &fname)
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{
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llarp_new_config(&config);
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configfile = fname;
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return ReloadConfig();
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}
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}
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extern "C" {
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struct llarp_main
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{
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std::unique_ptr< llarp::Context > ctx;
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};
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struct llarp_main *
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llarp_main_init(const char *fname, bool multiProcess)
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{
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if(!fname)
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fname = "daemon.ini";
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llarp_main *m = new llarp_main;
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m->ctx.reset(new llarp::Context(std::cout, !multiProcess));
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if(!m->ctx->LoadConfig(fname))
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{
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m->ctx->Close();
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delete m;
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return nullptr;
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}
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return m;
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}
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void
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llarp_main_set_dht_handler(struct llarp_main *ptr, llarp_dht_msg_handler func)
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{
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ptr->ctx->custom_dht_func = func;
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}
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void
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llarp_main_signal(struct llarp_main *ptr, int sig)
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{
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ptr->ctx->HandleSignal(sig);
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}
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int
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llarp_main_setup(struct llarp_main *ptr)
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{
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return ptr->ctx->Setup();
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}
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int
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llarp_main_run(struct llarp_main *ptr)
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{
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return ptr->ctx->Run();
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}
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void
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llarp_main_abort(struct llarp_main *ptr)
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{
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llarp_logic_stop_timer(ptr->ctx->router->logic);
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}
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int
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llarp_main_loadDatabase(struct llarp_main *ptr)
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{
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return ptr->ctx->LoadDatabase();
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}
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int
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llarp_main_iterateDatabase(struct llarp_main *ptr, struct llarp_nodedb_iter i)
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{
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return ptr->ctx->IterateDatabase(i);
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}
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bool
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llarp_main_putDatabase(struct llarp_main *ptr, struct llarp_rc *rc)
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{
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return ptr->ctx->PutDatabase(rc);
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}
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struct llarp_rc *
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llarp_main_getDatabase(struct llarp_main *ptr, byte_t *pk)
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{
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return ptr->ctx->GetDatabase(pk);
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}
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struct llarp_rc *
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llarp_main_getLocalRC(struct llarp_main *ptr)
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{
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//
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/*
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llarp_config_iterator iter;
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iter.user = this;
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iter.visit = &iter_config;
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llarp_config_iter(ctx->config, &iter);
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*/
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llarp::Info("Loading ", ptr->ctx->conatctFile);
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llarp_rc *rc = llarp_rc_read(ptr->ctx->conatctFile);
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return rc;
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}
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void
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llarp_main_checkOnline(void *u, uint64_t orig, uint64_t left)
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{
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// llarp::Info("checkOnline - check ", left);
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if(left)
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return;
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struct check_online_request *request =
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static_cast< struct check_online_request * >(u);
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// llarp::Debug("checkOnline - running");
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// llarp::Info("checkOnline - DHT nodes ",
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// request->ptr->ctx->router->dht->impl.nodes->nodes.size());
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request->online = false;
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request->nodes = request->ptr->ctx->router->dht->impl.nodes->nodes.size();
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if(request->ptr->ctx->router->dht->impl.nodes->nodes.size())
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{
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// llarp::Info("checkOnline - Going to say we're online");
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request->online = true;
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}
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request->hook(request);
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// reschedue our self
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llarp_main_queryDHT(request);
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}
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void
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llarp_main_queryDHT_online(struct check_online_request *request)
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{
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// Info("llarp_main_queryDHT_online: ", request->online ? "online" :
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// "offline");
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if(request->online && !request->first)
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{
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request->first = true;
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llarp::Info("llarp_main_queryDHT_online - We're online");
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llarp::Info("llarp_main_queryDHT_online - Querying DHT");
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llarp_dht_lookup_router(request->ptr->ctx->router->dht, request->job);
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}
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}
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void
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llarp_main_queryDHT(struct check_online_request *request)
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{
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// llarp::Info("llarp_main_queryDHT - setting up timer");
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request->hook = &llarp_main_queryDHT_online;
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llarp_logic_call_later(request->ptr->ctx->router->logic,
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{1000, request, &llarp_main_checkOnline});
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// llarp_dht_lookup_router(ptr->ctx->router->dht, job);
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}
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void
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llarp_main_free(struct llarp_main *ptr)
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{
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delete ptr;
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}
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}
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