XBT_PUBLIC void sg_exec_set_bound(sg_exec_t exec, double bound);
XBT_PUBLIC void sg_exec_set_host(sg_exec_t exec, sg_host_t new_host);
XBT_PUBLIC double sg_exec_get_remaining(const_sg_exec_t exec);
XBT_PUBLIC void sg_exec_set_bound(sg_exec_t exec, double bound);
XBT_PUBLIC void sg_exec_set_host(sg_exec_t exec, sg_host_t new_host);
XBT_PUBLIC double sg_exec_get_remaining(const_sg_exec_t exec);
XBT_PUBLIC sg_error_t sg_exec_wait(sg_exec_t exec);
XBT_PUBLIC sg_error_t sg_exec_wait_for(sg_exec_t exec, double timeout);
XBT_PUBLIC sg_error_t sg_exec_wait(sg_exec_t exec);
XBT_PUBLIC sg_error_t sg_exec_wait_for(sg_exec_t exec, double timeout);