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			179 lines
		
	
	
	
		
			6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			179 lines
		
	
	
	
		
			6 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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#include "test.h"
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int num_entries;
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bool flush_may_occur;
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int expected_flushed_key;
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bool check_flush;
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//
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// This test verifies that if partial eviction is expensive and
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// does not estimate number of freed bytes to be greater than 0,
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// then partial eviction is not called, and normal eviction
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// is used. The verification is done ia an assert(false) in 
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// pe_callback.
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//
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static void
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flush (CACHEFILE f __attribute__((__unused__)),
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       int UU(fd),
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       CACHEKEY k  __attribute__((__unused__)),
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       void *v     __attribute__((__unused__)),
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       void** UU(dd),
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       void *e     __attribute__((__unused__)),
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       PAIR_ATTR s      __attribute__((__unused__)),
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       PAIR_ATTR* new_size      __attribute__((__unused__)),
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       bool w      __attribute__((__unused__)),
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       bool keep   __attribute__((__unused__)),
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       bool c      __attribute__((__unused__)),
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        bool UU(is_clone)
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       ) {
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    /* Do nothing */
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    if (check_flush && !keep) {
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        if (verbose) { printf("FLUSH: %d write_me %d\n", (int)k.b, w); }
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        assert(flush_may_occur);
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        assert(!w);
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        assert(expected_flushed_key == (int)k.b);
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        expected_flushed_key--;
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    }
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}
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static int
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fetch (CACHEFILE f        __attribute__((__unused__)),
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       PAIR UU(p),
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       int UU(fd),
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       CACHEKEY k         __attribute__((__unused__)),
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       uint32_t fullhash __attribute__((__unused__)),
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       void **value       __attribute__((__unused__)),
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       void** UU(dd),
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       PAIR_ATTR *sizep        __attribute__((__unused__)),
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       int  *dirtyp,
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       void *extraargs    __attribute__((__unused__))
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       ) {
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    *dirtyp = 0;
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    *value = NULL;
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    *sizep = make_pair_attr(1);
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    return 0;
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}
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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 = 0;
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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 bytes_freed, void *extra),
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    void *finalize_extra
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    ) 
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{
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    assert(false);
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    finalize(bytes_to_free, finalize_extra);
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    return 0;
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}
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static void
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cachetable_test (void) {
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    const int test_limit = 4;
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    num_entries = 0;
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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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    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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    void* v1;
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    void* v2;
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    flush_may_occur = false;
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    check_flush = true;
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    CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL);
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    wc.flush_callback = flush;
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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 < 100000; i++) {
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      r = toku_cachetable_get_and_pin(f1, make_blocknum(1), 1, &v1, wc, fetch, def_pf_req_callback, def_pf_callback, true, NULL);
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        r = toku_test_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_CLEAN, make_pair_attr(1));
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    }
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    for (int i = 0; i < 8; i++) {
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      r = toku_cachetable_get_and_pin(f1, make_blocknum(2), 2, &v2, wc, fetch, def_pf_req_callback, def_pf_callback, true, NULL);
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        r = toku_test_cachetable_unpin(f1, make_blocknum(2), 2, CACHETABLE_CLEAN, make_pair_attr(1));
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    }
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    for (int i = 0; i < 4; i++) {
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      r = toku_cachetable_get_and_pin(f1, make_blocknum(3), 3, &v2, wc, fetch, def_pf_req_callback, def_pf_callback, true, NULL);
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        r = toku_test_cachetable_unpin(f1, make_blocknum(3), 3, CACHETABLE_CLEAN, make_pair_attr(1));
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    }
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    for (int i = 0; i < 2; i++) {
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      r = toku_cachetable_get_and_pin(f1, make_blocknum(4), 4, &v2, wc, fetch, def_pf_req_callback, def_pf_callback, true, NULL);
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        r = toku_test_cachetable_unpin(f1, make_blocknum(4), 4, CACHETABLE_CLEAN, make_pair_attr(1));
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    }
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    flush_may_occur = true;
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    expected_flushed_key = 4;
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    toku_cachetable_put(f1, make_blocknum(5), 5, NULL, make_pair_attr(4), wc, put_callback_nop);
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    flush_may_occur = true;
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    expected_flushed_key = 5;
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    r = toku_test_cachetable_unpin(f1, make_blocknum(5), 5, CACHETABLE_CLEAN, make_pair_attr(4));
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    check_flush = false;
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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_test();
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    return 0;
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}
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