s_mc_message_int_t answer = {};
answer.type = MessageType::DEADLOCK_CHECK_REPLY;
answer.value = deadlock;
- xbt_assert(channel_.send(answer) == 0, "Could not send response");
+ xbt_assert(channel_.send(answer) == 0, "Could not send response: %s", strerror(errno));
}
void AppSide::handle_simcall_execute(const s_mc_message_simcall_execute_t* message) const
{
// The client may send some messages to the server while processing the transition
actor->simcall_handle(message->times_considered_);
// Say the server that the transition is over and that it should proceed
- xbt_assert(channel_.send(MessageType::WAITING) == 0, "Could not send MESSAGE_WAITING to model-checker");
+ xbt_assert(channel_.send(MessageType::WAITING) == 0, "Could not send MESSAGE_WAITING to model-checker: %s",
+ strerror(errno));
// Finish the RPC from the server: return a serialized observer, to build a Transition on Checker side
s_mc_message_simcall_execute_answer_t answer = {};
answer.buffer.back() = '\0';
XBT_DEBUG("send SIMCALL_EXECUTE_ANSWER(%s) ~> '%s'", actor->get_cname(), str.c_str());
- xbt_assert(channel_.send(answer) == 0, "Could not send response");
+ xbt_assert(channel_.send(answer) == 0, "Could not send response: %s", strerror(errno));
}
void AppSide::handle_finalize(const s_mc_message_int_t* msg) const
#endif
}
coverage_checkpoint();
- xbt_assert(channel_.send(MessageType::FINALIZE_REPLY) == 0, "Could not answer to FINALIZE");
+ xbt_assert(channel_.send(MessageType::FINALIZE_REPLY) == 0, "Could not answer to FINALIZE: %s", strerror(errno));
std::fflush(stdout);
if (terminate_asap)
::_Exit(0);
}
-void AppSide::handle_fork(const s_mc_message_int_t* msg)
+void AppSide::handle_fork(const s_mc_message_fork_t* msg)
{
int status;
int pid;
struct sockaddr_un addr = {};
addr.sun_family = AF_UNIX;
- snprintf(addr.sun_path, 64, "/tmp/simgrid-mc-%" PRIu64, msg->value);
- auto addr_size = offsetof(struct sockaddr_un, sun_path) + strlen(addr.sun_path);
+ std::copy_n(begin(msg->socket_name), MC_SOCKET_NAME_LEN, addr.sun_path);
- xbt_assert(connect(sock, (struct sockaddr*)&addr, addr_size) >= 0,
- "Cannot connect to Checker on %s: %s.", addr.sun_path, strerror(errno));
+ xbt_assert(connect(sock, (struct sockaddr*)&addr, sizeof addr) >= 0, "Cannot connect to Checker on %c%s: %s.",
+ (addr.sun_path[0] ? addr.sun_path[0] : '@'), addr.sun_path + 1, strerror(errno));
channel_.reset_socket(sock);
s_mc_message_need_meminfo_reply_t answer = {};
answer.type = MessageType::NEED_MEMINFO_REPLY;
answer.mmalloc_default_mdp = mmalloc_get_current_heap();
- xbt_assert(channel_.send(answer) == 0, "Could not send response to the request for meminfo.");
+ xbt_assert(channel_.send(answer) == 0, "Could not send response to the request for meminfo: %s", strerror(errno));
#else
xbt_die("SimGrid was compiled without MC suppport, so liveness and similar features are not available.");
#endif
answer.type = MessageType::ACTORS_STATUS_REPLY_COUNT;
answer.count = static_cast<int>(status.size());
- xbt_assert(channel_.send(answer) == 0, "Could not send ACTORS_STATUS_REPLY msg");
+ xbt_assert(channel_.send(answer) == 0, "Could not send ACTORS_STATUS_REPLY msg: %s", strerror(errno));
if (answer.count > 0) {
size_t size = status.size() * sizeof(s_mc_message_actors_status_one_t);
- xbt_assert(channel_.send(status.data(), size) == 0, "Could not send ACTORS_STATUS_REPLY data");
+ xbt_assert(channel_.send(status.data(), size) == 0, "Could not send ACTORS_STATUS_REPLY data: %s", strerror(errno));
}
// Serialize each transition to describe what each actor is doing
XBT_DEBUG("Deliver ACTOR_TRANSITION_PROBE payload");
for (const auto& actor_status : status) {
- if (not actor_status.enabled)
- continue;
-
const auto& actor = actor_list.at(actor_status.aid);
const int max_considered = actor_status.max_considered;
strncpy(probe.buffer.data(), str.c_str(), probe.buffer.size() - 1);
probe.buffer.back() = '\0';
- xbt_assert(channel_.send(probe) == 0, "Could not send ACTOR_TRANSITION_PROBE payload");
+ xbt_assert(channel_.send(probe) == 0, "Could not send ACTOR_TRANSITION_PROBE payload: %s", strerror(errno));
}
// NOTE: We do NOT need to reset `times_considered` for each actor's
// simcall observer here to the "original" value (i.e. the value BEFORE
s_mc_message_int_t answer = {};
answer.type = MessageType::ACTORS_MAXPID_REPLY;
answer.value = kernel::actor::ActorImpl::get_maxpid();
- xbt_assert(channel_.send(answer) == 0, "Could not send response");
+ xbt_assert(channel_.send(answer) == 0, "Could not send response: %s", strerror(errno));
}
#define assert_msg_size(_name_, _type_) \
XBT_DEBUG("Socket closed on the Checker side, bailing out.");
::_Exit(0); // Nobody's listening to that process anymore => exit as quickly as possible.
}
- xbt_assert(received_size >= 0, "Could not receive commands from the model-checker");
+ xbt_assert(received_size >= 0, "Could not receive commands from the model-checker: %s", strerror(errno));
xbt_assert(static_cast<size_t>(received_size) >= sizeof(s_mc_message_t), "Cannot handle short message (size=%zd)",
received_size);
break;
case MessageType::FORK:
- assert_msg_size("FORK", s_mc_message_int_t);
- handle_fork((s_mc_message_int_t*)message_buffer.data());
+ assert_msg_size("FORK", s_mc_message_fork_t);
+ handle_fork((s_mc_message_fork_t*)message_buffer.data());
break;
case MessageType::WAIT_CHILD:
sthread_enable();
while (true) {
simgrid::mc::execute_actors();
- xbt_assert(channel_.send(MessageType::WAITING) == 0, "Could not send WAITING message to model-checker");
+ xbt_assert(channel_.send(MessageType::WAITING) == 0, "Could not send WAITING message to model-checker: %s",
+ strerror(errno));
this->handle_messages();
}
}
void AppSide::report_assertion_failure()
{
- xbt_assert(channel_.send(MessageType::ASSERTION_FAILED) == 0, "Could not send assertion to model-checker");
+ xbt_assert(channel_.send(MessageType::ASSERTION_FAILED) == 0, "Could not send assertion to model-checker: %s",
+ strerror(errno));
this->handle_messages();
}
message.type = MessageType::IGNORE_MEMORY;
message.addr = (std::uintptr_t)addr;
message.size = size;
- xbt_assert(channel_.send(message) == 0, "Could not send IGNORE_MEMORY message to model-checker");
+ xbt_assert(channel_.send(message) == 0, "Could not send IGNORE_MEMORY message to model-checker: %s", strerror(errno));
#else
xbt_die("Cannot really call ignore_heap() in non-SIMGRID_MC mode.");
#endif
heap->heapinfo[message.block].busy_frag.ignore[message.fragment]++;
}
- xbt_assert(channel_.send(message) == 0, "Could not send ignored region to MCer");
+ xbt_assert(channel_.send(message) == 0, "Could not send ignored region to MCer: %s", strerror(errno));
#else
xbt_die("Cannot really call ignore_heap() in non-SIMGRID_MC mode.");
#endif
message.type = MessageType::UNIGNORE_HEAP;
message.addr = (std::uintptr_t)address;
message.size = size;
- xbt_assert(channel_.send(message) == 0, "Could not send IGNORE_HEAP message to model-checker");
+ xbt_assert(channel_.send(message) == 0, "Could not send IGNORE_HEAP message to model-checker: %s", strerror(errno));
#else
xbt_die("Cannot really call unignore_heap() in non-SIMGRID_MC mode.");
#endif
strncpy(message.name.data(), name, message.name.size() - 1);
message.callback = nullptr;
message.data = value;
- xbt_assert(channel_.send(message) == 0, "Could send REGISTER_SYMBOL message to model-checker");
+ xbt_assert(channel_.send(message) == 0, "Could send REGISTER_SYMBOL message to model-checker: %s", strerror(errno));
#else
xbt_die("Cannot really call declare_symbol() in non-SIMGRID_MC mode.");
#endif
s_mc_message_stack_region_t message = {};
message.type = MessageType::STACK_REGION;
message.stack_region = region;
- xbt_assert(channel_.send(message) == 0, "Could not send STACK_REGION to model-checker");
+ xbt_assert(channel_.send(message) == 0, "Could not send STACK_REGION to model-checker: %s", strerror(errno));
#else
xbt_die("Cannot really call declare_stack() in non-SIMGRID_MC mode.");
#endif