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#include "uscxml/config.h"
#include "uscxml/Interpreter.h"
#include "uscxml/DOMUtils.h"
#ifndef BUILD_MINIMAL
# include "uscxml/debug/DebuggerServlet.h"
#endif
#include <glog/logging.h>
#include "uscxml/Factory.h"
#include "uscxml/server/HTTPServer.h"
#ifdef HAS_SIGNAL_H
#include <signal.h>
#endif
#ifdef HAS_EXECINFO_H
#include <execinfo.h>
#endif
#ifdef HAS_DLFCN_H
#include <dlfcn.h>
#endif
#ifdef CMAKE_BUILD_TYPE_DEBUG
#ifdef HAS_EXECINFO_H
void printBacktrace(void** array, int size) {
char** messages = backtrace_symbols(array, size);
for (int i = 0; i < size && messages != NULL; ++i) {
std::cerr << "\t" << messages[i] << std::endl;
}
std::cerr << std::endl;
free(messages);
}
#ifdef HAS_DLFCN_H
// see https://gist.github.com/nkuln/2020860
typedef void (*cxa_throw_type)(void *, void *, void (*) (void *));
cxa_throw_type orig_cxa_throw = 0;
void load_orig_throw_code() {
orig_cxa_throw = (cxa_throw_type) dlsym(RTLD_NEXT, "__cxa_throw");
}
extern "C"
CXA_THROW_SIGNATURE {
std::cerr << __FUNCTION__ << " will throw exception from " << std::endl;
if (orig_cxa_throw == 0)
load_orig_throw_code();
void *array[50];
size_t size = backtrace(array, 50);
printBacktrace(array, size);
orig_cxa_throw(thrown_exception, pvtinfo, dest);
}
#endif
#endif
// see http://stackoverflow.com/questions/2443135/how-do-i-find-where-an-exception-was-thrown-in-c
void customTerminate() {
static bool tried_throw = false;
try {
// try once to re-throw currently active exception
if (!tried_throw) {
tried_throw = true;
throw;
} else {
tried_throw = false;
}
} catch (const std::exception &e) {
std::cerr << __FUNCTION__ << " caught unhandled exception. what(): "
<< e.what() << std::endl;
} catch (const uscxml::Event &e) {
std::cerr << __FUNCTION__ << " caught unhandled exception. Event: "
<< e << std::endl;
} catch (...) {
std::cerr << __FUNCTION__ << " caught unknown/unhandled exception."
<< std::endl;
}
#ifdef HAS_EXECINFO_H
void * array[50];
int size = backtrace(array, 50);
printBacktrace(array, size);
#endif
abort();
}
#endif
int main(int argc, char** argv) {
using namespace uscxml;
#if defined(HAS_SIGNAL_H) && !defined(WIN32)
signal(SIGPIPE, SIG_IGN);
#endif
#ifdef CMAKE_BUILD_TYPE_DEBUG
std::set_terminate(customTerminate);
#endif
InterpreterOptions options = InterpreterOptions::fromCmdLine(argc, argv);
// setup logging
google::LogToStderr();
google::InitGoogleLogging(argv[0]);
if (options.pluginPath.length() > 0) {
Factory::setDefaultPluginPath(options.pluginPath);
}
if (options.verbose) {
Factory::getInstance()->listComponents();
}
if (!options) {
InterpreterOptions::printUsageAndExit(argv[0]);
}
// setup HTTP server
HTTPServer::SSLConfig* sslConf = NULL;
if (options.certificate.length() > 0) {
sslConf = new HTTPServer::SSLConfig();
sslConf->privateKey = options.certificate;
sslConf->publicKey = options.certificate;
sslConf->port = options.httpsPort;
} else if (options.privateKey.length() > 0 && options.publicKey.length() > 0) {
sslConf = new HTTPServer::SSLConfig();
sslConf->privateKey = options.privateKey;
sslConf->publicKey = options.publicKey;
sslConf->port = options.httpsPort;
}
HTTPServer::getInstance(options.httpPort, options.wsPort, sslConf);
#ifndef BUILD_MINIMAL
DebuggerServlet* debugger;
if (options.withDebugger) {
debugger = new DebuggerServlet();
debugger->copyToInvokers(true);
HTTPServer::getInstance()->registerServlet("/debug", debugger);
}
#endif
// instantiate and configure interpreters
std::list<Interpreter> interpreters;
for(int i = 0; i < options.interpreters.size(); i++) {
InterpreterOptions* currOptions = options.interpreters[0].second;
std::string documentURL = options.interpreters[0].first;
LOG(INFO) << "Processing " << documentURL;
try {
Interpreter interpreter = Interpreter::fromURL(documentURL);
if (interpreter) {
if (options.checking) {
std::list<InterpreterIssue> issues = interpreter.validate();
for (std::list<InterpreterIssue>::iterator issueIter = issues.begin(); issueIter != issues.end(); issueIter++) {
std::cout << *issueIter << std::endl;
}
}
interpreter.setCmdLineOptions(options.additionalParameters);
interpreter.setCmdLineOptions(currOptions->additionalParameters);
interpreter.setCapabilities(options.getCapabilities());
if (options.verbose) {
StateTransitionMonitor* vm = new StateTransitionMonitor();
vm->copyToInvokers(true);
interpreter.addMonitor(vm);
}
#ifndef BUILD_MINIMAL
if (options.withDebugger) {
interpreter.addMonitor(debugger);
}
#endif
interpreters.push_back(interpreter);
} else {
LOG(ERROR) << "Cannot create interpreter from " << documentURL;
}
} catch (Event e) {
std::cout << e << std::endl;
}
}
// start interpreters
try {
std::list<Interpreter>::iterator interpreterIter = interpreters.begin();
while(interpreterIter != interpreters.end()) {
interpreterIter->start();
interpreterIter++;
}
bool stillRunning = true;
// call from main thread for UI events
while(interpreters.size() > 0) {
interpreterIter = interpreters.begin();
while(interpreterIter != interpreters.end()) {
stillRunning = interpreterIter->runOnMainThread(25);
if (!stillRunning) {
interpreters.erase(interpreterIter++);
} else {
interpreterIter++;
}
}
}
#ifndef BUILD_MINIMAL
if (options.withDebugger) {
// idle and wait for CTRL+C or debugging events
while(true)
tthread::this_thread::sleep_for(tthread::chrono::seconds(1));
}
#endif
} catch (Event e) {
std::cout << e << std::endl;
}
return EXIT_SUCCESS;
}
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