mirror of
https://github.com/oxen-io/lokinet.git
synced 2024-11-17 15:25:35 +00:00
390 lines
8.3 KiB
C++
390 lines
8.3 KiB
C++
#include <getopt.h>
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#include <llarp.h>
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#include <llarp/logger.h>
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#include <signal.h>
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#ifndef _MSC_VER
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#include <sys/param.h> // for MIN
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#endif
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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__) || (__OpenBSD__) || (__NetBSD__)
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#include <pthread_np.h>
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#endif
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// keep this once jeff reenables concurrency
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#ifdef _MSC_VER
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extern "C" void
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SetThreadName(DWORD dwThreadID, LPCSTR szThreadName);
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#endif
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#if _WIN32 || __sun
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#define wmin(x, y) (((x) < (y)) ? (x) : (y))
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#define MIN wmin
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#endif
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namespace llarp
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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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std::cout << "." << 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::LogInfo("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::LogError("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::LogInfo("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_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::LogError("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::LogError("nodedb_dir is incorrect");
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return 0;
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}
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// llarp::LogInfo("nodedb_dir [", nodedb_dir, "] configured!");
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ssize_t loaded = llarp_nodedb_load_dir(nodedb, nodedb_dir);
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llarp::LogInfo("nodedb_dir loaded ", loaded, " RCs from [", nodedb_dir,
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"]");
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if(loaded < 0)
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{
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// shouldn't be possible
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llarp::LogError("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::Setup()
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{
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llarp::LogInfo(LLARP_VERSION, " ", LLARP_RELEASE_MOTTO);
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llarp::LogInfo("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::LogInfo("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::LogError("Failed to configure router");
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return 1;
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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::LogError("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::LogInfo("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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llarp::LogInfo("running mainloop");
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return llarp_ev_loop_run(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::LogInfo("SIGINT");
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SigINT();
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}
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// TODO(despair): implement hot-reloading config on NT
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#ifndef _WIN32
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if(sig == SIGHUP)
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{
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llarp::LogInfo("SIGHUP");
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ReloadConfig();
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}
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#endif
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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::LogDebug("stop router");
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if(router)
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llarp_stop_router(router);
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llarp::LogDebug("stop workers");
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if(worker)
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llarp_threadpool_stop(worker);
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llarp::LogDebug("join workers");
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if(worker)
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llarp_threadpool_join(worker);
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llarp::LogDebug("stop logic");
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if(logic)
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llarp_logic_stop(logic);
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llarp::LogDebug("free config");
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llarp_free_config(&config);
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llarp::LogDebug("free workers");
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llarp_free_threadpool(&worker);
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llarp::LogDebug("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::LogDebug("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::LogDebug("free router");
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llarp_free_router(&router);
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llarp::LogDebug("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::LogDebug("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::LogDebug("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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} // namespace llarp
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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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extern "C"
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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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char *var = getenv("LLARP_DEBUG");
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if(var && *var == '1')
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{
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cSetLogLevel(eLogDebug);
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}
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llarp_main *m = new llarp_main;
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m->ctx.reset(new llarp::Context());
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m->ctx->singleThreaded = !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_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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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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const char *
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handleBaseCmdLineArgs(int argc, char *argv[])
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{
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const char *conffname = "daemon.ini";
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int c;
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while(1)
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{
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static struct option long_options[] = {
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{"config", required_argument, 0, 'c'},
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{"logLevel", required_argument, 0, 'o'},
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{0, 0, 0, 0}};
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int option_index = 0;
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c = getopt_long(argc, argv, "c:o:", long_options, &option_index);
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if(c == -1)
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break;
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switch(c)
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{
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case 0:
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break;
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case 'c':
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conffname = optarg;
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break;
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case 'o':
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if(strncmp(optarg, "debug", MIN(strlen(optarg), (unsigned long)5))
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== 0)
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{
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cSetLogLevel(eLogDebug);
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}
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else if(strncmp(optarg, "info", MIN(strlen(optarg), (unsigned long)4))
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== 0)
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{
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cSetLogLevel(eLogInfo);
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}
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else if(strncmp(optarg, "warn", MIN(strlen(optarg), (unsigned long)4))
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== 0)
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{
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cSetLogLevel(eLogWarn);
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}
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else if(strncmp(optarg, "error",
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MIN(strlen(optarg), (unsigned long)5))
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== 0)
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{
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cSetLogLevel(eLogError);
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}
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break;
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default:
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break;
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}
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}
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return conffname;
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}
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}
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