4 calls to file_stream_wrapper_get_instance_by_scheme()

drupal_tempnam in drupal/includes/file.inc
Creates a file with a unique filename in the specified directory.
file_test_file_url_alter in drupal/modules/simpletest/tests/file_test.module
Implements hook_file_url_alter().
hook_file_url_alter in drupal/modules/system/system.api.php
Alter the URL to a file.
StreamWrapperTest::testGetInstanceByScheme in drupal/modules/simpletest/tests/file.test
Test the file_stream_wrapper_get_instance_by_scheme() function.