drupal 7: no hooks run on page load

I have site on drupal 7. I'm creating a module to add a poll on-page instead of a template string. As I understand, I should do it in some hook-like hook_page_load, hook_init, hook_boot, etc I created some hooks in my autopolling.module:

<?php
error_log("in autopolling\n",3,'D:\\TEMP\\temp\\php.log');

function autopolling_block_info(){
    error_log("autopolling_block_info\n",3,'D:\\TEMP\\temp\\php.log');
    $blocks['myblock'] = array(
        'info' => t("My custom block"),
    );
    return $blocks;
}

function autopolling_node_insert($node) {
    error_log("autopolling_node_insert\n",3,'D:\\TEMP\\temp\\php.log');
}
function autopolling_insert($node) {
    error_log("autopolling_insert\n",3,'D:\\TEMP\\temp\\php.log');
}

function autopolling_page_alter(&$page) {
    error_log('autopolling_page_alter',3,'D:\\TEMP\\temp\\php.log');
}
function autopolling_node_load($nodes, $types)
{
    error_log("autopolling_node_load\n", 3, 'D:\\TEMP\\temp\\php.log');
}
function autopolling_node_view($entity, $type, $view_mode, $langcode)
{
    error_log('autopolling_node_view', 3, 'D:\\TEMP\\temp\\php.log');
}
function autopolling_entity_view($entity, $type, $view_mode, $langcode) {
    error_log('autopolling_entity_view',3,'D:\\TEMP\\temp\\php.log');
}
function autopolling_page_build(&$page) {
    error_log('autopolling_page_build',3,'D:\\TEMP\\temp\\php.log');
}
function autopolling_init() {
    error_log('autopolling_init',3,'D:\\TEMP\\temp\\php.log');
}
function autopolling_boot() {
    error_log("autopolling_boot\n",3,'D:\\TEMP\\temp\\php.log');
}

but I've got only "in autopolling" string in my log file (and "autopolling_block_info" if I open admin/structure/block & "autopolling_node_insert" when I add a page).

So, hook_node_load should work, but I've got no record about it. And no records about any other "loading" hook.

I have no errors in drupal journal.

What I'm doing wrong?