diff options
Diffstat (limited to 'lib/tdb2/test/run-03-coalesce.c')
| -rw-r--r-- | lib/tdb2/test/run-03-coalesce.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/lib/tdb2/test/run-03-coalesce.c b/lib/tdb2/test/run-03-coalesce.c new file mode 100644 index 0000000000..3fdd11c077 --- /dev/null +++ b/lib/tdb2/test/run-03-coalesce.c @@ -0,0 +1,170 @@ +#include <ccan/tdb2/tdb.c> +#include <ccan/tdb2/open.c> +#include <ccan/tdb2/free.c> +#include <ccan/tdb2/lock.c> +#include <ccan/tdb2/io.c> +#include <ccan/tdb2/hash.c> +#include <ccan/tdb2/check.c> +#include <ccan/tdb2/transaction.c> +#include <ccan/tap/tap.h> +#include "logging.h" +#include "layout.h" + +static tdb_len_t free_record_length(struct tdb_context *tdb, tdb_off_t off) +{ + struct tdb_free_record f; + enum TDB_ERROR ecode; + + ecode = tdb_read_convert(tdb, off, &f, sizeof(f)); + if (ecode != TDB_SUCCESS) + return ecode; + if (frec_magic(&f) != TDB_FREE_MAGIC) + return TDB_ERR_CORRUPT; + return frec_len(&f); +} + +int main(int argc, char *argv[]) +{ + tdb_off_t b_off, test; + struct tdb_context *tdb; + struct tdb_layout *layout; + struct tdb_data data, key; + tdb_len_t len; + + /* FIXME: Test TDB_CONVERT */ + /* FIXME: Test lock order fail. */ + + plan_tests(42); + data = tdb_mkdata("world", 5); + key = tdb_mkdata("hello", 5); + + /* No coalescing can be done due to EOF */ + layout = new_tdb_layout("run-03-coalesce.tdb"); + tdb_layout_add_freetable(layout); + len = 1024; + tdb_layout_add_free(layout, len, 0); + tdb = tdb_layout_get(layout); + ok1(tdb_check(tdb, NULL, NULL) == 0); + ok1(free_record_length(tdb, layout->elem[1].base.off) == len); + + /* Figure out which bucket free entry is. */ + b_off = bucket_off(tdb->ftable_off, size_to_bucket(len)); + /* Lock and fail to coalesce. */ + ok1(tdb_lock_free_bucket(tdb, b_off, TDB_LOCK_WAIT) == 0); + test = layout->elem[1].base.off; + ok1(coalesce(tdb, layout->elem[1].base.off, b_off, len, &test) + == 0); + tdb_unlock_free_bucket(tdb, b_off); + ok1(free_record_length(tdb, layout->elem[1].base.off) == len); + ok1(test == layout->elem[1].base.off); + ok1(tdb_check(tdb, NULL, NULL) == 0); + tdb_close(tdb); + tdb_layout_free(layout); + + /* No coalescing can be done due to used record */ + layout = new_tdb_layout("run-03-coalesce.tdb"); + tdb_layout_add_freetable(layout); + tdb_layout_add_free(layout, 1024, 0); + tdb_layout_add_used(layout, key, data, 6); + tdb = tdb_layout_get(layout); + ok1(free_record_length(tdb, layout->elem[1].base.off) == 1024); + ok1(tdb_check(tdb, NULL, NULL) == 0); + + /* Figure out which bucket free entry is. */ + b_off = bucket_off(tdb->ftable_off, size_to_bucket(1024)); + /* Lock and fail to coalesce. */ + ok1(tdb_lock_free_bucket(tdb, b_off, TDB_LOCK_WAIT) == 0); + test = layout->elem[1].base.off; + ok1(coalesce(tdb, layout->elem[1].base.off, b_off, 1024, &test) + == 0); + tdb_unlock_free_bucket(tdb, b_off); + ok1(free_record_length(tdb, layout->elem[1].base.off) == 1024); + ok1(test == layout->elem[1].base.off); + ok1(tdb_check(tdb, NULL, NULL) == 0); + tdb_close(tdb); + tdb_layout_free(layout); + + /* Coalescing can be done due to two free records, then EOF */ + layout = new_tdb_layout("run-03-coalesce.tdb"); + tdb_layout_add_freetable(layout); + tdb_layout_add_free(layout, 1024, 0); + tdb_layout_add_free(layout, 2048, 0); + tdb = tdb_layout_get(layout); + ok1(free_record_length(tdb, layout->elem[1].base.off) == 1024); + ok1(free_record_length(tdb, layout->elem[2].base.off) == 2048); + ok1(tdb_check(tdb, NULL, NULL) == 0); + + /* Figure out which bucket (first) free entry is. */ + b_off = bucket_off(tdb->ftable_off, size_to_bucket(1024)); + /* Lock and coalesce. */ + ok1(tdb_lock_free_bucket(tdb, b_off, TDB_LOCK_WAIT) == 0); + test = layout->elem[2].base.off; + ok1(coalesce(tdb, layout->elem[1].base.off, b_off, 1024, &test) + == 1024 + sizeof(struct tdb_used_record) + 2048); + /* Should tell us it's erased this one... */ + ok1(test == TDB_ERR_NOEXIST); + ok1(tdb->file->allrecord_lock.count == 0 && tdb->file->num_lockrecs == 0); + ok1(free_record_length(tdb, layout->elem[1].base.off) + == 1024 + sizeof(struct tdb_used_record) + 2048); + ok1(tdb_check(tdb, NULL, NULL) == 0); + tdb_close(tdb); + tdb_layout_free(layout); + + /* Coalescing can be done due to two free records, then data */ + layout = new_tdb_layout("run-03-coalesce.tdb"); + tdb_layout_add_freetable(layout); + tdb_layout_add_free(layout, 1024, 0); + tdb_layout_add_free(layout, 512, 0); + tdb_layout_add_used(layout, key, data, 6); + tdb = tdb_layout_get(layout); + ok1(free_record_length(tdb, layout->elem[1].base.off) == 1024); + ok1(free_record_length(tdb, layout->elem[2].base.off) == 512); + ok1(tdb_check(tdb, NULL, NULL) == 0); + + /* Figure out which bucket free entry is. */ + b_off = bucket_off(tdb->ftable_off, size_to_bucket(1024)); + /* Lock and coalesce. */ + ok1(tdb_lock_free_bucket(tdb, b_off, TDB_LOCK_WAIT) == 0); + test = layout->elem[2].base.off; + ok1(coalesce(tdb, layout->elem[1].base.off, b_off, 1024, &test) + == 1024 + sizeof(struct tdb_used_record) + 512); + ok1(tdb->file->allrecord_lock.count == 0 && tdb->file->num_lockrecs == 0); + ok1(free_record_length(tdb, layout->elem[1].base.off) + == 1024 + sizeof(struct tdb_used_record) + 512); + ok1(test == TDB_ERR_NOEXIST); + ok1(tdb_check(tdb, NULL, NULL) == 0); + tdb_close(tdb); + tdb_layout_free(layout); + + /* Coalescing can be done due to three free records, then EOF */ + layout = new_tdb_layout("run-03-coalesce.tdb"); + tdb_layout_add_freetable(layout); + tdb_layout_add_free(layout, 1024, 0); + tdb_layout_add_free(layout, 512, 0); + tdb_layout_add_free(layout, 256, 0); + tdb = tdb_layout_get(layout); + ok1(free_record_length(tdb, layout->elem[1].base.off) == 1024); + ok1(free_record_length(tdb, layout->elem[2].base.off) == 512); + ok1(free_record_length(tdb, layout->elem[3].base.off) == 256); + ok1(tdb_check(tdb, NULL, NULL) == 0); + + /* Figure out which bucket free entry is. */ + b_off = bucket_off(tdb->ftable_off, size_to_bucket(1024)); + /* Lock and coalesce. */ + ok1(tdb_lock_free_bucket(tdb, b_off, TDB_LOCK_WAIT) == 0); + test = layout->elem[2].base.off; + ok1(coalesce(tdb, layout->elem[1].base.off, b_off, 1024, &test) + == 1024 + sizeof(struct tdb_used_record) + 512 + + sizeof(struct tdb_used_record) + 256); + ok1(tdb->file->allrecord_lock.count == 0 + && tdb->file->num_lockrecs == 0); + ok1(free_record_length(tdb, layout->elem[1].base.off) + == 1024 + sizeof(struct tdb_used_record) + 512 + + sizeof(struct tdb_used_record) + 256); + ok1(tdb_check(tdb, NULL, NULL) == 0); + tdb_close(tdb); + tdb_layout_free(layout); + + ok1(tap_log_messages == 0); + return exit_status(); +} |