Function kv_cache_restore_tool_memory_for_messages

ds4_server.c:8542–8581

    return m && m->max_entries > 0 ? m->max_entries : DS4_TOOL_MEMORY_DEFAULT_MAX_IDS;
}

static size_t tool_memory_max_bytes(const tool_memory *m) {
    return m && m->max_bytes > 0 ? m->max_bytes : DS4_TOOL_MEMORY_MAX_BYTES;
}

static void tool_memory_init_locked(tool_memory *m) {
    if (m->by_id && m->by_block) return;
    m->by_id = raxNew();
    m->by_block = raxNew();
    if (!m->by_id || !m->by_block) die("out of memory");
}

static void tool_memory_link_head(tool_memory *m, tool_memory_entry *e) {
    e->prev = NULL;
    e->next = m->head;
    if (m->head) m->head->prev = e;
    else m->tail = e;
    m->head = e;
}

static void tool_memory_unlink(tool_memory *m, tool_memory_entry *e) {
    if (e->prev) e->prev->next = e->next;
    else m->head = e->next;
    if (e->next) e->next->prev = e->prev;
    else m->tail = e->prev;
    e->prev = e->next = NULL;
}

static void tool_memory_touch(tool_memory *m, tool_memory_entry *e) {
    e->stamp = ++m->clock;
    if (m->head == e) return;
    tool_memory_unlink(m, e);
    tool_memory_link_head(m, e);
}

static void tool_block_unlink_entry(tool_memory_block *b, tool_memory_entry *e) {
    tool_memory_entry **p = &b->entries;
    while (*p) {
        if (*p == e) {
            *p = e->block_next;
            e->block_next = NULL;
            return;
        }