tdb2: fix intermittant failure in run-50-multiple-freelists-fail.c

layout.c's TDB creation functions were incorrect in case of a hash
collision, causing occasional failure.  Make it always use the
(previously-failing) seed value, and fix it.

diff --git a/ccan/tdb2/test/layout.c b/ccan/tdb2/test/layout.c
index 6fcee6d482a581f35d4974f29de161b502b4682a..2a37b51a988ae7457c50c4dabae9cda83770671b 100644 (file)
--- a/ccan/tdb2/test/layout.c
+++ b/ccan/tdb2/test/layout.c
@@ -206,7 +206,7 @@ static void add_to_hashtable(struct tdb_context *tdb,
                b_off = hbucket_off(group_start, bucket);               
                if (tdb_read_off(tdb, b_off) == 0) {
                        tdb_write_off(tdb, b_off,
-                                     encode_offset(eoff, bucket, h));
+                                     encode_offset(eoff, in_group, h));
                        return;
                }
        }
@@ -228,7 +228,8 @@ static struct tle_freetable *find_ftable(struct tdb_layout *layout, unsigned num
 }
 
 /* FIXME: Support TDB_CONVERT */
-struct tdb_context *tdb_layout_get(struct tdb_layout *layout)
+struct tdb_context *tdb_layout_get(struct tdb_layout *layout,
+                                  union tdb_attribute *attr)
 {
        unsigned int i;
        tdb_off_t off, len, last_ftable;
@@ -264,7 +265,7 @@ struct tdb_context *tdb_layout_get(struct tdb_layout *layout)
        /* Fill with some weird pattern. */
        memset(mem, 0x99, off);
        /* Now populate our header, cribbing from a real TDB header. */
-       tdb = tdb_open(NULL, TDB_INTERNAL, O_RDWR, 0, &tap_log_attr);
+       tdb = tdb_open(NULL, TDB_INTERNAL, O_RDWR, 0, attr);
        memcpy(mem, tdb->file->map_ptr, sizeof(struct tdb_header));
 
        /* Mug the tdb we have to make it use this. */

diff --git a/ccan/tdb2/test/layout.h b/ccan/tdb2/test/layout.h
index 6e2e6657a70451050db62ee2879657e6e8cb9f8b..96ecb683b8427e4aeaeaba30d21ccaab65021214 100644 (file)
--- a/ccan/tdb2/test/layout.h
+++ b/ccan/tdb2/test/layout.h
@@ -15,7 +15,8 @@ void tdb_layout_add_hashtable(struct tdb_layout *layout,
                              unsigned int bucket,
                              tdb_len_t extra);
 #endif
-struct tdb_context *tdb_layout_get(struct tdb_layout *layout);
+struct tdb_context *tdb_layout_get(struct tdb_layout *layout,
+                                  union tdb_attribute *attr);
 void tdb_layout_free(struct tdb_layout *layout);
 
 enum layout_type {

diff --git a/ccan/tdb2/test/run-03-coalesce.c b/ccan/tdb2/test/run-03-coalesce.c
index 3fdd11c07706127d2f8d60857efaddfcdbd38dac..8222f06bd7b18145f468cf06fc9004f01c489b18 100644 (file)
--- a/ccan/tdb2/test/run-03-coalesce.c
+++ b/ccan/tdb2/test/run-03-coalesce.c
@@ -43,7 +43,7 @@ int main(int argc, char *argv[])
        tdb_layout_add_freetable(layout);
        len = 1024;
        tdb_layout_add_free(layout, len, 0);
-       tdb = tdb_layout_get(layout);
+       tdb = tdb_layout_get(layout, &tap_log_attr);
        ok1(tdb_check(tdb, NULL, NULL) == 0);
        ok1(free_record_length(tdb, layout->elem[1].base.off) == len);
 
@@ -66,7 +66,7 @@ int main(int argc, char *argv[])
        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);
+       tdb = tdb_layout_get(layout, &tap_log_attr);
        ok1(free_record_length(tdb, layout->elem[1].base.off) == 1024);
        ok1(tdb_check(tdb, NULL, NULL) == 0);
 
@@ -89,7 +89,7 @@ int main(int argc, char *argv[])
        tdb_layout_add_freetable(layout);
        tdb_layout_add_free(layout, 1024, 0);
        tdb_layout_add_free(layout, 2048, 0);
-       tdb = tdb_layout_get(layout);
+       tdb = tdb_layout_get(layout, &tap_log_attr);
        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);
@@ -116,7 +116,7 @@ int main(int argc, char *argv[])
        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);
+       tdb = tdb_layout_get(layout, &tap_log_attr);
        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);
@@ -142,7 +142,7 @@ int main(int argc, char *argv[])
        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);
+       tdb = tdb_layout_get(layout, &tap_log_attr);
        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);

diff --git a/ccan/tdb2/test/run-50-multiple-freelists.c b/ccan/tdb2/test/run-50-multiple-freelists.c
index 7a48c3e0eee7726e9fd209587d1f0c50fed59002..719701b1c1f6b6103ec291c8daf967f8d6144327 100644 (file)
--- a/ccan/tdb2/test/run-50-multiple-freelists.c
+++ b/ccan/tdb2/test/run-50-multiple-freelists.c
@@ -16,6 +16,12 @@ int main(int argc, char *argv[])
        struct tdb_context *tdb;
        struct tdb_layout *layout;
        TDB_DATA key, data;
+       union tdb_attribute seed;
+
+       /* This seed value previously tickled a layout.c bug. */
+       seed.base.attr = TDB_ATTRIBUTE_SEED;
+       seed.seed.seed = 0xb1142bc054d035b4ULL;
+       seed.base.next = &tap_log_attr;
 
        plan_tests(11);
        key = tdb_mkdata("Hello", 5);
@@ -36,7 +42,7 @@ int main(int argc, char *argv[])
        key.dsize--;
        tdb_layout_add_used(layout, key, data, 8);
        tdb_layout_add_free(layout, 40, 0);
-       tdb = tdb_layout_get(layout);
+       tdb = tdb_layout_get(layout, &seed);
        ok1(tdb_check(tdb, NULL, NULL) == 0);
 
        off = get_free(tdb, 0, 80 - sizeof(struct tdb_used_record), 0,