#include "fio.h"
#include "flist.h"
#include "hash.h"
+#include "filehash.h"
+#include "smalloc.h"
+#include "lib/bloom.h"
#define HASH_BUCKETS 512
#define HASH_MASK (HASH_BUCKETS - 1)
-unsigned int file_hash_size = HASH_BUCKETS * sizeof(struct flist_head);
+#define BLOOM_SIZE 16*1024*1024
+
+static unsigned int file_hash_size = HASH_BUCKETS * sizeof(struct flist_head);
static struct flist_head *file_hash;
static struct fio_mutex *hash_lock;
+static struct bloom *file_bloom;
static unsigned short hash(const char *name)
{
void fio_file_hash_lock(void)
{
- fio_mutex_down(hash_lock);
+ if (hash_lock)
+ fio_mutex_down(hash_lock);
}
void fio_file_hash_unlock(void)
{
- fio_mutex_up(hash_lock);
+ if (hash_lock)
+ fio_mutex_up(hash_lock);
}
void remove_file_hash(struct fio_file *f)
return alias;
}
+bool file_bloom_exists(const char *fname, bool set)
+{
+ return bloom_string(file_bloom, fname, strlen(fname), set);
+}
+
void file_hash_exit(void)
{
unsigned int i, has_entries = 0;
if (has_entries)
log_err("fio: file hash not empty on exit\n");
+ sfree(file_hash);
file_hash = NULL;
fio_mutex_remove(hash_lock);
hash_lock = NULL;
+ bloom_free(file_bloom);
+ file_bloom = NULL;
}
-void file_hash_init(void *ptr)
+void file_hash_init(void)
{
unsigned int i;
- file_hash = ptr;
+ file_hash = smalloc(file_hash_size);
+
for (i = 0; i < HASH_BUCKETS; i++)
INIT_FLIST_HEAD(&file_hash[i]);
hash_lock = fio_mutex_init(FIO_MUTEX_UNLOCKED);
+ file_bloom = bloom_new(BLOOM_SIZE);
}