/* -*- mode: C; c-basic-offset: 4 -*- */
#ident "$Id$"
#ident "Copyright (c) 2008 Tokutek Inc.  All rights reserved."

// Test toku_brt_stat64 to make sure it works even if the comparison function won't allow an arbitrary prefix of the key to work.

#include "includes.h"
#include "test.h"

#include <unistd.h>

static TOKUTXN const null_txn = 0;
static DB * const null_db = 0;

char fname[]= __FILE__ ".brt";
CACHETABLE ct;
BRT t;
int keysize = 9;

static int dont_allow_prefix (DB *db __attribute__((__unused__)), const DBT *a, const DBT *b) {
    assert(a->size==9 && b->size==9);
    return toku_keycompare(a->data, a->size, b->data, b->size);
}

static void close_brt_and_ct (void) {
    int r;
    r = toku_close_brt_nolsn(t, 0);          assert(r==0);
    r = toku_cachetable_close(&ct);    assert(r==0);
}

static void open_brt_and_ct (bool unlink_old) {
    int r;
    if (unlink_old) unlink(fname);
    r = toku_brt_create_cachetable(&ct, 0, ZERO_LSN, NULL_LOGGER);                                assert(r==0);
    r = toku_open_brt(fname, 1, &t, 1<<12, 1<<9, ct, null_txn, toku_builtin_compare_fun);   assert(r==0);
    r = toku_brt_set_bt_compare(t, dont_allow_prefix);
}

static void test_4115 (void) {
    u_int64_t limit=30000;
    open_brt_and_ct(true);
    for (u_int64_t i=0; i<limit; i++) {
	char key[100],val[100];
	snprintf(key, 100, "%08llu", (unsigned long long)2*i+1);
	snprintf(val, 100, "%08llu", (unsigned long long)2*i+1);
	DBT k,v;
	int r = toku_brt_insert(t, toku_fill_dbt(&k, key, 1+strlen(key)), toku_fill_dbt(&v,val, 1+strlen(val)), null_txn);
	assert(r == 0);
    }
    struct brtstat64_s s;
    int r = toku_brt_stat64(t, NULL, &s);
    assert(r==0);
    assert(s.nkeys>0);
    assert(s.dsize>0);
    close_brt_and_ct();
}

int
test_main (int argc , const char *argv[]) {
    default_parse_args(argc, argv);

    test_4115();

    if (verbose) printf("test ok\n");
    return 0;
}