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/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
#ident "$Id$"
#ident "Copyright (c) 2007-2012 Tokutek Inc. All rights reserved."
#include "includes.h"
#include "test.h"
//
// This file contains some basic tests for partial fetch, ensuring that
// it works correctly
//
u_int32_t fetch_val = 0;
BOOL pf_req_called;
static int
fetch (CACHEFILE f __attribute__((__unused__)),
int UU(fd),
CACHEKEY k __attribute__((__unused__)),
u_int32_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 = &fetch_val;
*sizep = make_pair_attr(sizeof(fetch_val));
return 0;
}
static int
err_fetch (CACHEFILE f __attribute__((__unused__)),
int UU(fd),
CACHEKEY k __attribute__((__unused__)),
u_int32_t fullhash __attribute__((__unused__)),
void **value __attribute__((__unused__)),
void** UU(dd),
PAIR_ATTR *sizep __attribute__((__unused__)),
int *dirtyp,
void *extraargs __attribute__((__unused__))
) {
assert(FALSE);
*dirtyp = 0;
return 0;
}
static BOOL pf_req_callback(void* UU(ftnode_pv), void* UU(read_extraargs)) {
return FALSE;
}
static BOOL true_pf_req_callback(void* UU(ftnode_pv), void* UU(read_extraargs)) {
return TRUE;
}
static int err_pf_callback(void* UU(ftnode_pv), void* UU(dd), void* UU(read_extraargs), int UU(fd), PAIR_ATTR* UU(sizep)) {
assert(FALSE);
return 0; // gcov
}
static int pf_callback(void* UU(ftnode_pv), void* UU(dd), void* UU(read_extraargs), int UU(fd), PAIR_ATTR* UU(sizep)) {
assert(FALSE);
return 0; // gcov
}
static int true_pf_callback(void* UU(ftnode_pv), void* UU(dd), void* read_extraargs, int UU(fd), PAIR_ATTR* sizep) {
pf_req_called = TRUE;
*sizep = make_pair_attr(sizeof(fetch_val)+1);
assert(read_extraargs == &fetch_val);
return 0;
}
static void
cachetable_test (void) {
const int test_limit = 12;
int r;
CACHETABLE ct;
BOOL doing_prefetch = FALSE;
r = toku_create_cachetable(&ct, test_limit, ZERO_LSN, NULL_LOGGER); assert(r == 0);
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);
void* v1;
//void* v2;
long s1;
//long s2;
CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL);
r = toku_cachetable_get_and_pin(f1, make_blocknum(1), 1, &v1, &s1, wc, fetch, pf_req_callback, pf_callback, TRUE, NULL);
assert(&fetch_val == v1);
//
// verify that a prefetch of this node will fail
//
r = toku_cachefile_prefetch(
f1,
make_blocknum(1),
1,
wc,
fetch,
pf_req_callback,
pf_callback,
NULL,
&doing_prefetch
);
assert(r == 0);
// make sure that prefetch should not happen, because we have already pinned node
assert(!doing_prefetch);
r = toku_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_CLEAN, make_pair_attr(8));
//
// now get and pin node again, and make sure that partial fetch and fetch are not called
//
r = toku_cachetable_get_and_pin(f1, make_blocknum(1), 1, &v1, &s1, wc, err_fetch, pf_req_callback, err_pf_callback, TRUE, NULL);
r = toku_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_CLEAN, make_pair_attr(8));
//
// now make sure that if we say a partial fetch is required, that we get a partial fetch
// and that read_extraargs properly passed down
//
pf_req_called = FALSE;
r = toku_cachetable_get_and_pin(f1, make_blocknum(1), 1, &v1, &s1, wc, err_fetch, true_pf_req_callback, true_pf_callback, TRUE, &fetch_val);
assert(pf_req_called);
assert(s1 == sizeof(fetch_val)+1);
r = toku_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_CLEAN, make_pair_attr(8));
// close and reopen cachefile so we can do some simple prefetch tests
r = toku_cachefile_close(&f1, 0, FALSE, ZERO_LSN); assert(r == 0);
r = toku_cachetable_openf(&f1, ct, fname1, O_RDWR|O_CREAT, S_IRWXU|S_IRWXG|S_IRWXO); assert(r == 0);
//
// verify that a prefetch of the node will succeed
//
r = toku_cachefile_prefetch(
f1,
make_blocknum(1),
1,
wc,
fetch,
pf_req_callback,
pf_callback,
NULL,
&doing_prefetch
);
assert(r == 0);
// make sure that prefetch should happen, because we have already pinned node
assert(doing_prefetch);
//
// now verify we can pin it, and NO fetch callback should get called
//
r = toku_cachetable_get_and_pin(f1, make_blocknum(1), 1, &v1, &s1, wc, err_fetch, pf_req_callback, err_pf_callback, TRUE, NULL);
assert(&fetch_val == v1);
r = toku_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_CLEAN, make_pair_attr(8));
//
// now verify a prefetch that requires a partial fetch works, and that we can then pin the node
//
r = toku_cachefile_prefetch(
f1,
make_blocknum(1),
1,
wc,
fetch,
true_pf_req_callback,
true_pf_callback,
&fetch_val,
&doing_prefetch
);
assert(doing_prefetch);
r = toku_cachetable_get_and_pin(f1, make_blocknum(1), 1, &v1, &s1, wc, err_fetch, pf_req_callback, err_pf_callback, TRUE, NULL);
assert(&fetch_val == v1);
r = toku_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_CLEAN, make_pair_attr(8));
toku_cachetable_verify(ct);
r = toku_cachefile_close(&f1, 0, FALSE, ZERO_LSN); assert(r == 0);
r = toku_cachetable_close(&ct); lazy_assert_zero(r);
}
int
test_main(int argc, const char *argv[]) {
default_parse_args(argc, argv);
cachetable_test();
return 0;
}
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