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#include "uscxml/config.h"
#include "uscxml/Interpreter.h"
#include "uscxml/debug/SCXMLDotWriter.h"
#include <glog/logging.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
class VerboseMonitor : public uscxml::InterpreterMonitor {
void onStableConfiguration(uscxml::Interpreter interpreter) {
printConfig(interpreter.getConfiguration());
}
void beforeCompletion(uscxml::Interpreter interpreter) {
printConfig(interpreter.getConfiguration());
}
void printConfig(const Arabica::XPath::NodeSet<std::string>& config) {
std::string seperator;
std::cout << "Config: {";
for (int i = 0; i < config.size(); i++) {
std::cout << seperator << ATTR(config[i], "id");
seperator = ", ";
}
std::cout << "}" << std::endl;
}
};
#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"
void __cxa_throw (void *thrown_exception, void *pvtinfo, void (*dest)(void *)) {
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);
if (!options) {
InterpreterOptions::printUsageAndExit(argv[0]);
}
// setup logging
google::LogToStderr();
google::InitGoogleLogging(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, sslConf);
// instantiate and configure interpreters
std::list<Interpreter> interpreters;
std::map<std::string, InterpreterOptions*>::iterator confIter = options.interpreters.begin();
while(confIter != options.interpreters.end()) {
InterpreterOptions* currOptions = confIter->second;
std::string documentURL = confIter->first;
LOG(INFO) << "Processing " << documentURL;
Interpreter interpreter = Interpreter::fromURI(documentURL);
if (interpreter) {
interpreter.setCmdLineOptions(currOptions->additionalParameters);
interpreter.setCapabilities(options.getCapabilities());
if (options.verbose) {
VerboseMonitor* vm = new VerboseMonitor();
interpreter.addMonitor(vm);
}
if (options.useDot) {
SCXMLDotWriter* dotWriter = new SCXMLDotWriter();
interpreter.addMonitor(dotWriter);
}
interpreters.push_back(interpreter);
} else {
LOG(ERROR) << "Cannot create interpreter from " << documentURL;
}
confIter++;
}
// start interpreters
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++;
}
}
}
return EXIT_SUCCESS;
}
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