* under the terms of the license (GNU LGPL) which comes with this package. */
#include "src/mc/remote/CheckerSide.hpp"
+#include "src/mc/ModelChecker.hpp"
+#include "xbt/system_error.hpp"
#include <csignal>
#include <sys/wait.h>
-namespace simgrid::mc {
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_checkerside, mc, "MC communication with the application");
-void CheckerSide::start(void (*handler_sock)(int, short, void*), void (*handler_sig)(int, short, void*),
- ModelChecker* mc)
+namespace simgrid::mc {
+CheckerSide::CheckerSide(int sockfd, ModelChecker* mc) : channel_(sockfd)
{
auto* base = event_base_new();
base_.reset(base);
- auto* socket_event = event_new(base, get_channel().get_socket(), EV_READ | EV_PERSIST, handler_sock, this);
+ auto* socket_event = event_new(
+ base, get_channel().get_socket(), EV_READ | EV_PERSIST,
+ [](evutil_socket_t sig, short events, void* arg) {
+ auto checker = static_cast<simgrid::mc::CheckerSide*>(arg);
+ if (events == EV_READ) {
+ std::array<char, MC_MESSAGE_LENGTH> buffer;
+ ssize_t size = recv(checker->get_channel().get_socket(), buffer.data(), buffer.size(), MSG_DONTWAIT);
+ if (size == -1) {
+ XBT_ERROR("Channel::receive failure: %s", strerror(errno));
+ if (errno != EAGAIN)
+ throw simgrid::xbt::errno_error();
+ }
+
+ if (not mc_model_checker->handle_message(buffer.data(), size))
+ checker->break_loop();
+ } else {
+ xbt_die("Unexpected event");
+ }
+ },
+ this);
event_add(socket_event, nullptr);
socket_event_.reset(socket_event);
- auto* signal_event = event_new(base, SIGCHLD, EV_SIGNAL | EV_PERSIST, handler_sig, mc);
+ auto* signal_event = event_new(
+ base, SIGCHLD, EV_SIGNAL | EV_PERSIST,
+ [](evutil_socket_t sig, short events, void* arg) {
+ auto mc = static_cast<simgrid::mc::ModelChecker*>(arg);
+ if (events == EV_SIGNAL) {
+ if (sig == SIGCHLD)
+ mc->handle_waitpid();
+ else
+ xbt_die("Unexpected signal: %d", sig);
+ } else {
+ xbt_die("Unexpected event");
+ }
+ },
+ mc);
event_add(signal_event, nullptr);
signal_event_.reset(signal_event);
}
