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190 lines
5.5 KiB
C++
190 lines
5.5 KiB
C++
/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
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#ident "$Id$"
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/*======
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This file is part of PerconaFT.
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Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
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PerconaFT is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2,
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as published by the Free Software Foundation.
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PerconaFT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
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----------------------------------------
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PerconaFT is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License, version 3,
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as published by the Free Software Foundation.
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PerconaFT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
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======= */
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#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
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/* verify that get_and_pin waits while a prefetch block is pending */
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#include "test.h"
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static void
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pe_est_callback(
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void* UU(ftnode_pv),
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void* UU(dd),
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long* bytes_freed_estimate,
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enum partial_eviction_cost *cost,
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void* UU(write_extraargs)
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)
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{
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*bytes_freed_estimate = 7;
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*cost = PE_EXPENSIVE;
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}
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static int
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pe_callback (
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void *ftnode_pv __attribute__((__unused__)),
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PAIR_ATTR bytes_to_free __attribute__((__unused__)),
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void* extraargs __attribute__((__unused__)),
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void (*finalize)(PAIR_ATTR new_attr, void *extra),
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void *finalize_extra
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)
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{
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sleep(3);
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finalize(make_pair_attr(bytes_to_free.size - 7), finalize_extra);
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return 0;
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}
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static uint64_t tdelta_usec(struct timeval *tend, struct timeval *tstart) {
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uint64_t t = tend->tv_sec * 1000000 + tend->tv_usec;
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t -= tstart->tv_sec * 1000000 + tstart->tv_usec;
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return t;
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}
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static void cachetable_prefetch_maybegetandpin_test (void) {
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const int test_limit = 12;
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int r;
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CACHETABLE ct;
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toku_cachetable_create(&ct, test_limit, ZERO_LSN, nullptr);
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evictor_test_helpers::disable_ev_thread(&ct->ev);
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const char *fname1 = TOKU_TEST_FILENAME;
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unlink(fname1);
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CACHEFILE f1;
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r = toku_cachetable_openf(&f1, ct, fname1, O_RDWR|O_CREAT, S_IRWXU|S_IRWXG|S_IRWXO); assert(r == 0);
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CACHEKEY key = make_blocknum(0);
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uint32_t fullhash = toku_cachetable_hash(f1, make_blocknum(0));
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// let's get and pin this node a bunch of times to drive up the clock count
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CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL);
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wc.pe_est_callback = pe_est_callback;
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wc.pe_callback = pe_callback;
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for (int i = 0; i < 20; i++) {
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void* value;
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r = toku_cachetable_get_and_pin(
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f1,
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key,
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fullhash,
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&value,
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wc,
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def_fetch,
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def_pf_req_callback,
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def_pf_callback,
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true,
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0
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);
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assert(r==0);
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r = toku_test_cachetable_unpin(f1, key, fullhash, CACHETABLE_DIRTY, make_pair_attr(8));
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}
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struct timeval tstart;
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gettimeofday(&tstart, NULL);
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// fetch another block, causing an eviction of the first block we made above
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void* value2;
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r = toku_cachetable_get_and_pin(
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f1,
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make_blocknum(1),
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1,
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&value2,
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wc,
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def_fetch,
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def_pf_req_callback,
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def_pf_callback,
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true,
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0
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);
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assert(r==0);
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ct->ev.signal_eviction_thread();
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usleep(1*1024*1024);
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r = toku_test_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_CLEAN, make_pair_attr(8));
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toku_cachetable_verify(ct);
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void *v = 0;
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// now verify that the block we are trying to evict may be pinned
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r = toku_cachetable_get_and_pin_nonblocking(
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f1,
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key,
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fullhash,
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&v,
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wc,
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def_fetch,
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def_pf_req_callback,
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def_pf_callback,
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PL_WRITE_EXPENSIVE,
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NULL,
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NULL
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);
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assert(r==TOKUDB_TRY_AGAIN);
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r = toku_cachetable_get_and_pin(
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f1,
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key,
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fullhash,
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&v,
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wc,
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def_fetch,
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def_pf_req_callback,
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def_pf_callback,
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true,
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NULL
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);
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assert(r == 0 && v == 0);
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PAIR_ATTR attr;
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r = toku_cachetable_get_attr(f1, key, fullhash, &attr);
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assert(r == 0 && attr.size == 1);
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struct timeval tend;
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gettimeofday(&tend, NULL);
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assert(tdelta_usec(&tend, &tstart) >= 2000000);
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if (verbose) printf("time %" PRIu64 " \n", tdelta_usec(&tend, &tstart));
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toku_cachetable_verify(ct);
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r = toku_test_cachetable_unpin(f1, key, fullhash, CACHETABLE_CLEAN, make_pair_attr(1));
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assert(r == 0);
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toku_cachetable_verify(ct);
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toku_cachefile_close(&f1, false, ZERO_LSN);
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toku_cachetable_close(&ct);
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}
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int
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test_main(int argc, const char *argv[]) {
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default_parse_args(argc, argv);
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cachetable_prefetch_maybegetandpin_test();
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return 0;
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}
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