// Clean up one cache subdirectory.
void
clean_up_dir(struct conf *conf, const char *dir, double limit_multiple)
{
cc_log("Cleaning up cache directory %s", dir);
// When "max files" or "max cache size" is reached, one of the 16 cache
// subdirectories is cleaned up. When doing so, files are deleted (in LRU
// order) until the levels are below limit_multiple.
cache_size_threshold = (uint64_t)round(conf->max_size * limit_multiple / 16);
files_in_cache_threshold =
(size_t)round(conf->max_files * limit_multiple / 16);
num_files = 0;
cache_size = 0;
files_in_cache = 0;
// Build a list of files.
traverse(dir, traverse_fn);
// Clean the cache.
cc_log("Before cleanup: %.0f KiB, %.0f files",
(double)cache_size / 1024,
(double)files_in_cache);
bool cleaned = sort_and_clean();
cc_log("After cleanup: %.0f KiB, %.0f files",
(double)cache_size / 1024,
(double)files_in_cache);
if (cleaned) {
cc_log("Cleaned up cache directory %s", dir);
stats_add_cleanup(dir, 1);
}
stats_set_sizes(dir, files_in_cache, cache_size);
// Free it up.
for (unsigned i = 0; i < num_files; i++) {
free(files[i]->fname);
free(files[i]);
files[i] = NULL;
}
if (files) {
free(files);
}
allocated = 0;
files = NULL;
num_files = 0;
cache_size = 0;
files_in_cache = 0;
}
/* cleanup in one cache subdir */
void
cleanup_dir(const char *dir, size_t maxfiles, size_t maxsize)
{
unsigned i;
cc_log("Cleaning up cache directory %s", dir);
cache_size_threshold = maxsize * LIMIT_MULTIPLE;
files_in_cache_threshold = maxfiles * LIMIT_MULTIPLE;
num_files = 0;
cache_size = 0;
files_in_cache = 0;
/* build a list of files */
traverse(dir, traverse_fn);
/* clean the cache */
sort_and_clean();
stats_set_sizes(dir, files_in_cache, cache_size);
/* free it up */
for (i = 0; i < num_files; i++) {
free(files[i]->fname);
free(files[i]);
files[i] = NULL;
}
if (files) {
free(files);
}
allocated = 0;
files = NULL;
num_files = 0;
cache_size = 0;
files_in_cache = 0;
}
