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/* -*- 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."
/* verify that get_and_pin waits while a prefetch block is pending */
#include "test.h"
bool do_sleep;
static void
flush (CACHEFILE f __attribute__((__unused__)),
int UU(fd),
CACHEKEY k __attribute__((__unused__)),
void *v __attribute__((__unused__)),
void** UU(dd),
void *e __attribute__((__unused__)),
PAIR_ATTR s __attribute__((__unused__)),
PAIR_ATTR* new_size __attribute__((__unused__)),
bool w __attribute__((__unused__)),
bool keep __attribute__((__unused__)),
bool c __attribute__((__unused__)),
bool UU(is_clone)
) {
if (do_sleep) {
sleep(3);
}
}
static uint64_t tdelta_usec(struct timeval *tend, struct timeval *tstart) {
uint64_t t = tend->tv_sec * 1000000 + tend->tv_usec;
t -= tstart->tv_sec * 1000000 + tstart->tv_usec;
return t;
}
static void cachetable_predef_fetch_maybegetandpin_test (void) {
const int test_limit = 12;
int r;
CACHETABLE ct;
toku_cachetable_create(&ct, test_limit, ZERO_LSN, nullptr);
evictor_test_helpers::disable_ev_thread(&ct->ev);
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);
CACHEKEY key = make_blocknum(0);
uint32_t fullhash = toku_cachetable_hash(f1, make_blocknum(0));
// let's get and pin this node a bunch of times to drive up the clock count
for (int i = 0; i < 20; i++) {
void* value;
long size;
CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL);
wc.flush_callback = flush;
r = toku_cachetable_get_and_pin(
f1,
key,
fullhash,
&value,
&size,
wc,
def_fetch,
def_pf_req_callback,
def_pf_callback,
true,
0
);
assert(r==0);
r = toku_test_cachetable_unpin(f1, key, fullhash, CACHETABLE_DIRTY, make_pair_attr(8));
}
struct timeval tstart;
gettimeofday(&tstart, NULL);
// def_fetch another block, causing an eviction of the first block we made above
do_sleep = true;
void* value2;
long size2;
CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL);
r = toku_cachetable_get_and_pin(
f1,
make_blocknum(1),
1,
&value2,
&size2,
wc,
def_fetch,
def_pf_req_callback,
def_pf_callback,
true,
0
);
assert(r==0);
ct->ev.signal_eviction_thread();
usleep(1*1024*1024);
r = toku_test_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_CLEAN, make_pair_attr(8));
toku_cachetable_verify(ct);
void *v = 0;
long size = 0;
// now verify that the block we are trying to evict is gone
wc = def_write_callback(NULL);
wc.flush_callback = flush;
r = toku_cachetable_get_and_pin_nonblocking(f1, key, fullhash, &v, &size, wc, def_fetch, def_pf_req_callback, def_pf_callback, PL_WRITE_EXPENSIVE, NULL, NULL);
assert(r == TOKUDB_TRY_AGAIN);
r = toku_cachetable_get_and_pin(f1, key, fullhash, &v, &size, wc, def_fetch, def_pf_req_callback, def_pf_callback, true, NULL);
assert(r == 0 && v == 0 && size == 8);
do_sleep = false;
struct timeval tend;
gettimeofday(&tend, NULL);
assert(tdelta_usec(&tend, &tstart) >= 2000000);
if (verbose)printf("time %" PRIu64 " \n", tdelta_usec(&tend, &tstart));
toku_cachetable_verify(ct);
r = toku_test_cachetable_unpin(f1, key, fullhash, CACHETABLE_CLEAN, make_pair_attr(1));
assert(r == 0);
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_predef_fetch_maybegetandpin_test();
return 0;
}
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