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/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
// verify that the cache table checkpoint with prefetched blocks active works.
// the blocks in the reading state should be ignored.
#ident "$Id$"
#ident "Copyright (c) 2007-2012 Tokutek Inc. All rights reserved."
#include "test.h"
#include <stdio.h>
#include <unistd.h>
#include "cachetable-test.h"
#include "checkpoint.h"
const int item_size = 1;
int n_flush, n_write_me, n_keep_me, n_fetch;
static void flush(
CACHEFILE UU(cf),
int UU(fd),
CACHEKEY UU(key),
void *UU(value),
void** UU(dd),
void *UU(extraargs),
PAIR_ATTR size,
PAIR_ATTR* UU(new_size),
bool write_me,
bool keep_me,
bool UU(for_checkpoint),
bool UU(is_clone)
)
{
// assert(key == make_blocknum((long)value));
assert(size.size == item_size);
n_flush++;
if (write_me) n_write_me++;
if (keep_me) n_keep_me++;
}
static int fetch(
CACHEFILE UU(cf),
PAIR UU(p),
int UU(fd),
CACHEKEY UU(key),
uint32_t UU(fullhash),
void **UU(value),
void** UU(dd),
PAIR_ATTR *UU(sizep),
int *dirtyp,
void *UU(extraargs)
)
{
n_fetch++;
sleep(10);
*value = 0;
*sizep = make_pair_attr(item_size);
*dirtyp = 0;
return 0;
}
// put n items into the cachetable, maybe mark them dirty, do a checkpoint, and
// verify that all of the items have been written and are clean.
static void cachetable_prefetch_checkpoint_test(int n, enum cachetable_dirty dirty) {
if (verbose) printf("%s:%d n=%d dirty=%d\n", __FUNCTION__, __LINE__, n, (int) dirty);
const int test_limit = n;
int r;
CACHETABLE ct;
CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL);
wc.flush_callback = flush;
toku_cachetable_create(&ct, test_limit, ZERO_LSN, NULL_LOGGER);
char fname1[] = __SRCFILE__ "test1.dat";
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);
// disable the eviction thread. this thread was written to assume
// evictions hapepn on the client thread, which is no longer true.
evictor_test_helpers::disable_ev_thread(&ct->ev);
// prefetch block n+1. this will take 10 seconds.
{
CACHEKEY key = make_blocknum(n+1);
uint32_t fullhash = toku_cachetable_hash(f1, key);
r = toku_cachefile_prefetch(f1, key, fullhash, wc, fetch, def_pf_req_callback, def_pf_callback, 0, NULL);
toku_cachetable_verify(ct);
}
// insert items into the cachetable. all should be dirty
int i;
for (i=0; i<n; i++) {
CACHEKEY key = make_blocknum(i);
uint32_t hi = toku_cachetable_hash(f1, key);
toku_cachetable_put(f1, key, hi, (void *)(long)i, make_pair_attr(1), wc, put_callback_nop);
r = toku_test_cachetable_unpin(f1, key, hi, dirty, make_pair_attr(item_size));
assert(r == 0);
void *v;
int its_dirty;
long long its_pin;
long its_size;
r = toku_cachetable_get_key_state(ct, key, f1, &v, &its_dirty, &its_pin, &its_size);
if (r != 0)
continue;
assert(its_dirty == CACHETABLE_DIRTY);
assert(its_pin == 0);
assert(its_size == item_size);
}
// the checkpoint should cause n writes, but since n <= the cachetable size,
// all items should be kept in the cachetable
n_flush = n_write_me = n_keep_me = n_fetch = 0;
CHECKPOINTER cp = toku_cachetable_get_checkpointer(ct);
r = toku_checkpoint(cp, NULL, NULL, NULL, NULL, NULL, CLIENT_CHECKPOINT);
assert(r == 0);
assert(n_flush == n && n_write_me == n && n_keep_me == n);
// after the checkpoint, all of the items should be clean
for (i=0; i<n; i++) {
CACHEKEY key = make_blocknum(i);
uint32_t hi = toku_cachetable_hash(f1, key);
void *v;
r = toku_cachetable_maybe_get_and_pin(f1, key, hi, PL_WRITE_EXPENSIVE, &v);
if (r != 0)
continue;
r = toku_test_cachetable_unpin(f1, key, hi, CACHETABLE_CLEAN, make_pair_attr(item_size));
assert(r == 0);
int its_dirty;
long long its_pin;
long its_size;
r = toku_cachetable_get_key_state(ct, key, f1, &v, &its_dirty, &its_pin, &its_size);
if (r != 0)
continue;
assert(its_dirty == CACHETABLE_CLEAN);
assert(its_pin == 0);
assert(its_size == item_size);
}
// a subsequent checkpoint should cause no flushes, or writes since all of the items are clean
n_flush = n_write_me = n_keep_me = n_fetch = 0;
r = toku_checkpoint(cp, NULL, NULL, NULL, NULL, NULL, CLIENT_CHECKPOINT);
assert(r == 0);
assert(n_flush == 0 && n_write_me == 0 && n_keep_me == 0);
toku_cachefile_close(&f1, false, ZERO_LSN);
toku_cachetable_close(&ct);
}
int
test_main(int argc, const char *argv[]) {
int i;
for (i=1; i<argc; i++) {
if (strcmp(argv[i], "-v") == 0) {
verbose++;
continue;
}
}
for (i=0; i<8; i++) {
cachetable_prefetch_checkpoint_test(i, CACHETABLE_CLEAN);
cachetable_prefetch_checkpoint_test(i, CACHETABLE_DIRTY);
}
return 0;
}
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