[t:5077] add a comparison function that compares 8 byte ints. closes #5077.

git-svn-id: file:///svn/toku/tokudb@44885 c7de825b-a66e-492c-adef-691d508d4ae1

src/tests/perf_insert.c

@@ -44,6 +44,6 @@ test_main(int argc, char *const argv[]) {
     struct cli_args args = get_default_args_for_perf();
     args.num_elements = 0;  // want to start with empty DBs
     parse_stress_test_args(argc, argv, &args);
-    stress_test_main(&args);
+    stress_test_main_with_cmp(&args, stress_uint64_dbt_cmp);
     return 0;
 }

src/tests/threaded_stress_test_helpers.h

@@ -2063,7 +2063,7 @@ static void
 stress_table(DB_ENV *, DB **, struct cli_args *);
 
 static int
-stress_int_dbt_cmp (DB *db, const DBT *a, const DBT *b) {
+UU() stress_int_dbt_cmp (DB *db, const DBT *a, const DBT *b) {
     assert(db && a && b);
     assert(a->size >= sizeof(int));
     assert(b->size >= sizeof(int));
@@ -2076,6 +2076,24 @@ stress_int_dbt_cmp (DB *db, const DBT *a, const DBT *b) {
     return 0;
 }
 
+static int
+UU() stress_uint64_dbt_cmp(DB *db, const DBT *a, const DBT *b) {
+    assert(db && a && b);
+    assert(a->size >= sizeof(uint64_t));
+    assert(b->size >= sizeof(uint64_t));
+
+    int x = *(uint64_t *) a->data;
+    int y = *(uint64_t *) b->data;
+
+    if (x < y) {
+        return -1;
+    }
+    if (x > y) {
+        return +1;
+    }
+    return 0;
+}
+
 
 static void
 do_warm_cache(DB_ENV *env, DB **dbs, struct cli_args *args)
@@ -2096,7 +2114,7 @@ do_warm_cache(DB_ENV *env, DB **dbs, struct cli_args *args)
 }
 
 static void
-stress_test_main(struct cli_args *args)
+UU() stress_test_main_with_cmp(struct cli_args *args, int (*bt_compare)(DB *, const DBT *, const DBT *))
 {
     { char *loc = setlocale(LC_NUMERIC, "en_US.UTF-8"); assert(loc); }
     DB_ENV* env = NULL;
@@ -2107,7 +2125,7 @@ stress_test_main(struct cli_args *args)
             &env,
             dbs,
             args->num_DBs,
-            stress_int_dbt_cmp,
+            bt_compare,
             args->env_args
             );
         { int chk_r = fill_tables_with_zeroes(dbs, args->num_DBs, args->num_elements, args->key_size, args->val_size); CKERR(chk_r); }
@@ -2117,7 +2135,7 @@ stress_test_main(struct cli_args *args)
         { int chk_r = open_tables(&env,
                                   dbs,
                                   args->num_DBs,
-                                  stress_int_dbt_cmp,
+                                  bt_compare,
                                   args->env_args); CKERR(chk_r); }
         if (args->warm_cache) {
             do_warm_cache(env, dbs, args);
@@ -2127,6 +2145,12 @@ stress_test_main(struct cli_args *args)
     }
 }
 
+static void
+UU() stress_test_main(struct cli_args *args)
+{
+    stress_test_main_with_cmp(args, stress_int_dbt_cmp);
+}
+
 static void
 UU() stress_recover(struct cli_args *args) {
     DB_ENV* env = NULL;