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Diffstat (limited to 'storage/tokudb/PerconaFT/ft/tests/cachetable-simple-clone.cc')
| -rw-r--r-- | storage/tokudb/PerconaFT/ft/tests/cachetable-simple-clone.cc | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/storage/tokudb/PerconaFT/ft/tests/cachetable-simple-clone.cc b/storage/tokudb/PerconaFT/ft/tests/cachetable-simple-clone.cc new file mode 100644 index 00000000..c51096b3 --- /dev/null +++ b/storage/tokudb/PerconaFT/ft/tests/cachetable-simple-clone.cc @@ -0,0 +1,188 @@ +/* -*- 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" + +bool clone_called; +bool check_flush; +bool flush_expected; +bool flush_called; + +static void +clone_callback(void* UU(value_data), void** cloned_value_data, long* clone_size, PAIR_ATTR* new_attr, bool UU(for_checkpoint), void* UU(write_extraargs)) +{ + *cloned_value_data = (void *)1; + new_attr->is_valid = false; + clone_called = true; + *clone_size = 8; +} + +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 (w) usleep(5*1024*1024); + if (w && check_flush) { + assert(flush_expected); + if (clone_called) assert(is_clone); + } + flush_called = true; + if (is_clone) assert(!keep); +} + +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; +} + + +// +// test the following things for simple cloning: +// - if the pending pair is clean, nothing gets written +// - if the pending pair is dirty and cloneable, then pair is written +// in background and get_and_pin returns immedietely +// - if the pending pair is dirty and not cloneable, then get_and_pin +// blocks until the pair is written out +// +static void +test_clean (enum cachetable_dirty dirty, bool cloneable) { + 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); + + void* v1; + CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL); + wc.clone_callback = cloneable ? clone_callback : NULL; + wc.flush_callback = flush; + r = toku_cachetable_get_and_pin(f1, make_blocknum(1), 1, &v1, wc, def_fetch, def_pf_req_callback, def_pf_callback, true, NULL); + r = toku_test_cachetable_unpin(f1, make_blocknum(1), 1, dirty, make_pair_attr(8)); + + check_flush = true; + clone_called = false; + flush_expected = (dirty == CACHETABLE_DIRTY) ? true : false; + flush_called = false; + // begin checkpoint, since pair is clean, we should not + // have the clone called + CHECKPOINTER cp = toku_cachetable_get_checkpointer(ct); + toku_cachetable_begin_checkpoint(cp, NULL); + assert_zero(r); + struct timeval tstart; + struct timeval tend; + gettimeofday(&tstart, NULL); + + // test that having a pin that passes false for may_modify_value does not stall behind checkpoint + r = toku_cachetable_get_and_pin(f1, make_blocknum(1), 1, &v1, wc, def_fetch, def_pf_req_callback, def_pf_callback, false, NULL); + r = toku_test_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_CLEAN, make_pair_attr(8)); + gettimeofday(&tend, NULL); + assert(tdelta_usec(&tend, &tstart) <= 2000000); + assert(!clone_called); + + r = toku_cachetable_get_and_pin(f1, make_blocknum(1), 1, &v1, wc, def_fetch, def_pf_req_callback, def_pf_callback, true, NULL); + gettimeofday(&tend, NULL); + + // we take 5 seconds for a write + // we check if time to pin is less than 2 seconds, if it is + // then we know act of cloning worked properly + if (cloneable || !dirty ) { + assert(tdelta_usec(&tend, &tstart) <= 2000000); + } + else { + assert(tdelta_usec(&tend, &tstart) >= 2000000); + } + + + if (dirty == CACHETABLE_DIRTY && cloneable) { + assert(clone_called); + } + else { + assert(!clone_called); + } + + // at this point, there should be no more dirty writes + r = toku_test_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_CLEAN, make_pair_attr(8)); + gettimeofday(&tend, NULL); + if (cloneable || !dirty ) { + assert(tdelta_usec(&tend, &tstart) <= 2000000); + } + else { + assert(tdelta_usec(&tend, &tstart) >= 2000000); + } + + toku_cachetable_end_checkpoint( + cp, + NULL, + NULL, + NULL + ); + + check_flush = false; + + 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); + test_clean(CACHETABLE_CLEAN, true); + test_clean(CACHETABLE_DIRTY, true); + test_clean(CACHETABLE_CLEAN, false); + test_clean(CACHETABLE_DIRTY, false); + return 0; +} |