1 files changed, 179 insertions, 0 deletions
diff --git a/storage/tokudb/PerconaFT/ft/tests/cachetable-clock-eviction4.cc b/storage/tokudb/PerconaFT/ft/tests/cachetable-clock-eviction4.cc
new file mode 100644
index 00000000..8537a5a0
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+++ b/storage/tokudb/PerconaFT/ft/tests/cachetable-clock-eviction4.cc
@@ -0,0 +1,179 @@
+/* -*- 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"
+
+int num_entries;
+bool flush_may_occur;
+int expected_flushed_key;
+bool check_flush;
+
+
+//
+// This test verifies that if partial eviction is expensive and
+// does not estimate number of freed bytes to be greater than 0,
+// then partial eviction is not called, and normal eviction
+// is used. The verification is done ia an assert(false) in 
+// pe_callback.
+//
+
+
+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)
+       ) {
+    /* Do nothing */
+    if (check_flush && !keep) {
+        if (verbose) { printf("FLUSH: %d write_me %d\n", (int)k.b, w); }
+        assert(flush_may_occur);
+        assert(!w);
+        assert(expected_flushed_key == (int)k.b);
+        expected_flushed_key--;
+    }
+}
+
+static int
+fetch (CACHEFILE f        __attribute__((__unused__)),
+       PAIR UU(p),
+       int UU(fd),
+       CACHEKEY k         __attribute__((__unused__)),
+       uint32_t fullhash __attribute__((__unused__)),
+       void **value       __attribute__((__unused__)),
+       void** UU(dd),
+       PAIR_ATTR *sizep        __attribute__((__unused__)),
+       int  *dirtyp,
+       void *extraargs    __attribute__((__unused__))
+       ) {
+    *dirtyp = 0;
+    *value = NULL;
+    *sizep = make_pair_attr(1);
+    return 0;
+}
+
+static void 
+pe_est_callback(
+    void* UU(ftnode_pv),
+    void* UU(dd), 
+    long* bytes_freed_estimate, 
+    enum partial_eviction_cost *cost, 
+    void* UU(write_extraargs)
+    )
+{
+    *bytes_freed_estimate = 0;
+    *cost = PE_EXPENSIVE;
+}
+
+static int 
+pe_callback (
+    void *ftnode_pv __attribute__((__unused__)), 
+    PAIR_ATTR bytes_to_free __attribute__((__unused__)), 
+    void* extraargs __attribute__((__unused__)),
+    void (*finalize)(PAIR_ATTR bytes_freed, void *extra),
+    void *finalize_extra
+    ) 
+{
+    assert(false);
+    finalize(bytes_to_free, finalize_extra);
+    return 0;
+}
+
+
+static void
+cachetable_test (void) {
+    const int test_limit = 4;
+    num_entries = 0;
+    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);
+
+    void* v1;
+    void* v2;
+    flush_may_occur = false;
+    check_flush = true;
+    CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL);
+    wc.flush_callback = flush;
+    wc.pe_est_callback = pe_est_callback;
+    wc.pe_callback = pe_callback;
+    for (int i = 0; i < 100000; i++) {
+      r = toku_cachetable_get_and_pin(f1, make_blocknum(1), 1, &v1, wc, 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(1));
+    }
+    for (int i = 0; i < 8; i++) {
+      r = toku_cachetable_get_and_pin(f1, make_blocknum(2), 2, &v2, wc, fetch, def_pf_req_callback, def_pf_callback, true, NULL);
+        r = toku_test_cachetable_unpin(f1, make_blocknum(2), 2, CACHETABLE_CLEAN, make_pair_attr(1));
+    }
+    for (int i = 0; i < 4; i++) {
+      r = toku_cachetable_get_and_pin(f1, make_blocknum(3), 3, &v2, wc, fetch, def_pf_req_callback, def_pf_callback, true, NULL);
+        r = toku_test_cachetable_unpin(f1, make_blocknum(3), 3, CACHETABLE_CLEAN, make_pair_attr(1));
+    }
+    for (int i = 0; i < 2; i++) {
+      r = toku_cachetable_get_and_pin(f1, make_blocknum(4), 4, &v2, wc, fetch, def_pf_req_callback, def_pf_callback, true, NULL);
+        r = toku_test_cachetable_unpin(f1, make_blocknum(4), 4, CACHETABLE_CLEAN, make_pair_attr(1));
+    }
+    flush_may_occur = true;
+    expected_flushed_key = 4;
+    toku_cachetable_put(f1, make_blocknum(5), 5, NULL, make_pair_attr(4), wc, put_callback_nop);
+    flush_may_occur = true;
+    expected_flushed_key = 5;
+    r = toku_test_cachetable_unpin(f1, make_blocknum(5), 5, CACHETABLE_CLEAN, make_pair_attr(4));
+
+    check_flush = false;
+    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;
+}