namespace simgrid {
namespace mc {
-ModelChecker::ModelChecker(pid_t pid, int socket) :
- pid_(pid), socket_(socket),
+ModelChecker::ModelChecker(std::unique_ptr<Process> process) :
hostnames_(xbt_dict_new()),
page_store_(500),
+ process_(std::move(process)),
parent_snapshot_(nullptr)
{
+
}
ModelChecker::~ModelChecker()
void ModelChecker::start()
{
+ const pid_t pid = process_->pid();
+
// Block SIGCHLD (this will be handled with accept/signalfd):
sigset_t set;
sigemptyset(&set);
// Prepare data for poll:
struct pollfd* socket_pollfd = &fds_[SOCKET_FD_INDEX];
- socket_pollfd->fd = socket_;
+ socket_pollfd->fd = process_->socket();;
socket_pollfd->events = POLLIN;
socket_pollfd->revents = 0;
int status;
// The model-checked process SIGSTOP itself to signal it's ready:
- pid_t res = waitpid(pid_, &status, __WALL);
+ pid_t res = waitpid(pid, &status, __WALL);
if (res < 0 || !WIFSTOPPED(status) || WSTOPSIG(status) != SIGSTOP)
xbt_die("Could not wait model-checked process");
- assert(process_ == nullptr);
- process_ = std::unique_ptr<Process>(new Process(pid_, socket_));
- // TODO, avoid direct dependency on sg_cfg
- process_->privatized(sg_cfg_get_boolean("smpi/privatize_global_variables"));
+ process_->init();
/* Initialize statistics */
mc_stats = xbt_new0(s_mc_stats_t, 1);
setup_ignore();
- ptrace(PTRACE_SETOPTIONS, pid_, nullptr, PTRACE_O_TRACEEXIT);
- ptrace(PTRACE_CONT, pid_, 0, 0);
+ ptrace(PTRACE_SETOPTIONS, pid, nullptr, PTRACE_O_TRACEEXIT);
+ ptrace(PTRACE_CONT, pid, 0, 0);
}
static const std::pair<const char*, const char*> ignored_local_variables[] = {
// From PTRACE_O_TRACEEXIT:
if (status>>8 == (SIGTRAP | (PTRACE_EVENT_EXIT<<8))) {
- if (ptrace(PTRACE_GETEVENTMSG, pid_, 0, &status) == -1)
+ if (ptrace(PTRACE_GETEVENTMSG, this->process().pid(), 0, &status) == -1)
xbt_die("Could not get exit status");
if (WIFSIGNALED(status)) {
MC_report_crash(status);
// We don't care about signals, just reinject them:
if (WIFSTOPPED(status)) {
XBT_DEBUG("Stopped with signal %i", (int) WSTOPSIG(status));
- if (ptrace(PTRACE_CONT, pid_, 0, WSTOPSIG(status)) == -1)
+ if (ptrace(PTRACE_CONT, this->process().pid(), 0, WSTOPSIG(status)) == -1)
xbt_die("Could not PTRACE_CONT");
}