// Clean up all cache subdirectories.
void clean_up_all(struct conf *conf)
{
for (int i = 0; i <= 0xF; i++) {
char *dname = format("%s/%1x", conf->cache_dir, i);
clean_up_dir(conf, dname, 1.0);
free(dname);
}
}
// Write counter updates in counter_updates to disk.
void
stats_flush(void)
{
assert(conf);
if (!conf->stats) {
return;
}
if (!counter_updates) {
return;
}
bool should_flush = false;
for (int i = 0; i < STATS_END; ++i) {
if (counter_updates->data[i] > 0) {
should_flush = true;
break;
}
}
if (!should_flush) {
return;
}
if (!stats_file) {
char *stats_dir;
// A NULL stats_file means that we didn't get past calculate_object_hash(),
// so we just choose one of stats files in the 16 subdirectories.
stats_dir = format("%s/%x", conf->cache_dir, hash_from_int(getpid()) % 16);
stats_file = format("%s/stats", stats_dir);
free(stats_dir);
}
if (!lockfile_acquire(stats_file, lock_staleness_limit)) {
return;
}
struct counters *counters = counters_init(STATS_END);
stats_read(stats_file, counters);
for (int i = 0; i < STATS_END; ++i) {
counters->data[i] += counter_updates->data[i];
}
stats_write(stats_file, counters);
lockfile_release(stats_file);
if (!str_eq(conf->log_file, "") || conf->debug) {
for (int i = 0; i < STATS_END; ++i) {
if (counter_updates->data[stats_info[i].stat] != 0
&& !(stats_info[i].flags & FLAG_NOZERO)) {
cc_log("Result: %s", stats_info[i].message);
}
}
}
char *subdir = dirname(stats_file);
bool need_cleanup = false;
if (conf->max_files != 0
&& counters->data[STATS_NUMFILES] > conf->max_files / 16) {
cc_log("Need to clean up %s since it holds %u files (limit: %u files)",
subdir,
counters->data[STATS_NUMFILES],
conf->max_files / 16);
need_cleanup = true;
}
if (conf->max_size != 0
&& counters->data[STATS_TOTALSIZE] > conf->max_size / 1024 / 16) {
cc_log("Need to clean up %s since it holds %u KiB (limit: %lu KiB)",
subdir,
counters->data[STATS_TOTALSIZE],
(unsigned long)conf->max_size / 1024 / 16);
need_cleanup = true;
}
if (need_cleanup) {
clean_up_dir(conf, subdir, conf->limit_multiple);
}
free(subdir);
counters_free(counters);
}
