static int waitpid_while_debugging_stub(int pid, int* status, int options)
{
static int number_called = 0;
static int saved_status;
if (number_called++ < 10) {
saved_status = *status;
errno=EINTR;
return -1;
}
else {
*status = saved_status;
return original_waitpid(pid, status, options);
}
}
pid_t waitpid(pid_t pid, int *status, int options)
{
int status_; //status might be NULL, thus we use status_ to retrive the state.
pid_t pidb;
typeof(waitpid) *original_waitpid = dlsym(RTLD_NEXT, "waitpid");
debug(D_DEBUG, "waiting from %d.\n", getpid());
pidb = original_waitpid(pid, &status_, options);
if(WIFEXITED(status_) || WIFSIGNALED(status_))
{
struct monitor_msg msg;
msg.type = END;
msg.origin = getpid();
msg.data.p = pidb;
send_monitor_msg(&msg);
}
if(status)
*status = status_;
return pid;
}