/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
#ident "$Id$"
/*======
This file is part of PerconaFT.


Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.

    PerconaFT is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License, version 2,
    as published by the Free Software Foundation.

    PerconaFT is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with PerconaFT.  If not, see <http://www.gnu.org/licenses/>.

----------------------------------------

    PerconaFT is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License, version 3,
    as published by the Free Software Foundation.

    PerconaFT is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with PerconaFT.  If not, see <http://www.gnu.org/licenses/>.
======= */

#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."

#include "test.h"
#include "cachetable-test.h"

//
// simple tests for maybe_get_and_pin(_clean)
//

static void
cachetable_test (void) {
    const int test_limit = 12;
    int r;
    CACHETABLE ct;
    toku_cachetable_create(&ct, test_limit, ZERO_LSN, nullptr);
    const char *fname1 = TOKU_TEST_FILENAME;
    unlink(fname1);
    CACHEFILE f1;
    r = toku_cachetable_openf(&f1, ct, fname1, O_RDWR|O_CREAT, S_IRWXU|S_IRWXG|S_IRWXO); assert(r == 0);
    create_dummy_functions(f1);
    CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL);
    
    void* v1;
    long s1;
    // nothing in cachetable, so this should fail
    r = toku_cachetable_maybe_get_and_pin(f1, make_blocknum(1), 1, PL_WRITE_EXPENSIVE, &v1);
    assert(r==-1);
    r = toku_cachetable_get_and_pin(f1, make_blocknum(1), 1, &v1, &s1, wc, def_fetch, def_pf_req_callback, def_pf_callback, true, NULL);
    r = toku_test_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_CLEAN, make_pair_attr(8));

    // maybe_get_and_pin_clean should succeed, maybe_get_and_pin should fail
    r = toku_cachetable_maybe_get_and_pin(f1, make_blocknum(1), 1, PL_WRITE_EXPENSIVE, &v1);
    assert(r==-1);
    r = toku_cachetable_maybe_get_and_pin_clean(f1, make_blocknum(1), 1, PL_WRITE_EXPENSIVE, &v1);
    assert(r == 0);
    r = toku_test_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_DIRTY, make_pair_attr(8));
    // maybe_get_and_pin_clean should succeed, maybe_get_and_pin should fail
    r = toku_cachetable_maybe_get_and_pin(f1, make_blocknum(1), 1, PL_WRITE_EXPENSIVE, &v1);
    assert(r==0);
    // now these calls should fail because the node is already pinned, and therefore in use
    r = toku_cachetable_maybe_get_and_pin(f1, make_blocknum(1), 1, PL_WRITE_EXPENSIVE, &v1);
    assert(r==-1);
    r = toku_cachetable_maybe_get_and_pin_clean(f1, make_blocknum(1), 1, PL_WRITE_EXPENSIVE, &v1);
    assert(r==-1);
    r = toku_test_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_DIRTY, make_pair_attr(8));

    // sanity check, this should still succeed, because the PAIR is dirty
    r = toku_cachetable_maybe_get_and_pin(f1, make_blocknum(1), 1, PL_WRITE_EXPENSIVE, &v1);
    assert(r==0);
    r = toku_test_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_DIRTY, make_pair_attr(8));
    CHECKPOINTER cp = toku_cachetable_get_checkpointer(ct);
    toku_cachetable_begin_checkpoint(cp, NULL);
    // now these should fail, because the node should be pending a checkpoint
    r = toku_cachetable_maybe_get_and_pin(f1, make_blocknum(1), 1, PL_WRITE_EXPENSIVE, &v1);
    assert(r==-1);
    r = toku_cachetable_maybe_get_and_pin(f1, make_blocknum(1), 1, PL_WRITE_EXPENSIVE, &v1);
    assert(r==-1);
    toku_cachetable_end_checkpoint(
        cp, 
        NULL, 
        NULL,
        NULL
        );

    toku_cachetable_verify(ct);
    toku_cachefile_close(&f1, false, ZERO_LSN);
    toku_cachetable_close(&ct);
}

int
test_main(int argc, const char *argv[]) {
  default_parse_args(argc, argv);
  cachetable_test();
  return 0;
}
