Function lwp_children_register

components/lwp/lwp.c:367–383

* @brief Register a child process with its parent * * @param[in] parent Pointer to the parent process structure * @param[in] child Pointer to the child process structure to register * * @return RT_EOK on success * * @note This function adds a child process to its parent's children list and * increases reference counts for both processes. */

 *       increases reference counts for both processes.
 */
rt_err_t lwp_children_register(struct rt_lwp *parent, struct rt_lwp *child)
{
    /* lwp add to children link */
    LWP_LOCK(parent);
    child->sibling = parent->first_child;
    parent->first_child = child;
    child->parent = parent;
    LWP_UNLOCK(parent);

    LOG_D("%s(parent=%p, child=%p)", __func__, parent, child);
    /* parent holds reference to child */
    lwp_ref_inc(parent);
    /* child holds reference to parent */
    lwp_ref_inc(child);

    return 0;
}

/**
 * @brief Unregister a child process from its parent