X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Ftdb2%2Fprivate.h;h=8d4b7b9b5d4a36add7ddf972eccff44e196e0cd2;hp=a10d1070d29c3d5f84f09107d032fbb0cf0dac1b;hb=96b169e986cda1de9ffbbdc98042e1099515ca34;hpb=5e30abc662990449444769c71cf98ca788db4117 diff --git a/ccan/tdb2/private.h b/ccan/tdb2/private.h index a10d1070..8d4b7b9b 100644 --- a/ccan/tdb2/private.h +++ b/ccan/tdb2/private.h @@ -92,8 +92,8 @@ typedef uint64_t tdb_off_t; /* And 8 entries in each group, ie 8 groups per sublevel. */ #define TDB_HASH_GROUP_BITS 3 -/* Extend file by least 32 times larger than needed. */ -#define TDB_EXTENSION_FACTOR 32 +/* Extend file by least 100 times larger than needed. */ +#define TDB_EXTENSION_FACTOR 100 /* We steal bits from the offsets to store hash info. */ #define TDB_OFF_HASH_GROUP_MASK ((1ULL << TDB_HASH_GROUP_BITS) - 1) @@ -331,6 +331,8 @@ struct tdb_context { uint64_t num_lockrecs; struct tdb_lock_type *lockrecs; + struct tdb_attribute_stats *stats; + /* Single list of all TDBs, to avoid multiple opens. */ struct tdb_context *next; dev_t device; @@ -416,16 +418,15 @@ void *tdb_convert(const struct tdb_context *tdb, void *buf, tdb_len_t size); void tdb_munmap(struct tdb_context *tdb); void tdb_mmap(struct tdb_context *tdb); -/* Either make a copy into pad and return that, or return ptr into mmap. - * Converts endian (ie. will use pad in that case). */ -void *tdb_get(struct tdb_context *tdb, tdb_off_t off, void *pad, size_t len); - /* Either alloc a copy, or give direct access. Release frees or noop. */ const void *tdb_access_read(struct tdb_context *tdb, tdb_off_t off, tdb_len_t len, bool convert); void *tdb_access_write(struct tdb_context *tdb, tdb_off_t off, tdb_len_t len, bool convert); +/* Is this pointer direct? (Otherwise it's malloced) */ +bool is_direct(const struct tdb_context *tdb, const void *p); + /* Release result of tdb_access_read/write. */ void tdb_access_release(struct tdb_context *tdb, const void *p); /* Commit result of tdb_acces_write. */ @@ -466,6 +467,13 @@ int tdb_write_convert(struct tdb_context *tdb, tdb_off_t off, int tdb_read_convert(struct tdb_context *tdb, tdb_off_t off, void *rec, size_t len); +/* Adds a stat, if it's in range. */ +void add_stat_(struct tdb_context *tdb, uint64_t *stat, size_t val); +#define add_stat(tdb, statname, val) \ + do { \ + if (unlikely((tdb)->stats)) \ + add_stat_((tdb), &(tdb)->stats->statname, (val)); \ + } while (0) /* lock.c: */ void tdb_lock_init(struct tdb_context *tdb);