1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
/* verify that maybe_get_and_pin returns an error while a prefetch block is pending */
#ident "$Id$"
#ident "Copyright (c) 2007-2012 Tokutek Inc. All rights reserved."
#include "includes.h"
#include "test.h"
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 __attribute__((__unused__)),
void *extraargs __attribute__((__unused__))
) {
sleep(10);
*value = 0;
*sizep = make_pair_attr(1);
*dirtyp = 1;
return 0;
}
static void cachetable_prefetch_maybegetandpin_test (void) {
const int test_limit = 1;
int r;
CACHETABLE ct;
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);
// prefetch block 0. this will take 10 seconds.
CACHEKEY key = make_blocknum(0);
uint32_t fullhash = toku_cachetable_hash(f1, make_blocknum(0));
CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL);
r = toku_cachefile_prefetch(f1, key, fullhash, wc, fetch, def_pf_req_callback, def_pf_callback, 0, NULL);
toku_cachetable_verify(ct);
// verify that maybe_get_and_pin returns an error while the prefetch is in progress
int i;
for (i=1; i>=0; i++) {
void *v;
r = toku_cachetable_maybe_get_and_pin(f1, key, fullhash, PL_WRITE_EXPENSIVE, &v);
if (r == 0) break;
toku_pthread_yield();
}
if (verbose) printf("%s:%d %d\n", __FUNCTION__, __LINE__, i);
assert(i>1);
toku_cachetable_verify(ct);
r = toku_test_cachetable_unpin(f1, key, fullhash, CACHETABLE_CLEAN, make_pair_attr(1));
assert(r == 0);
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);
cachetable_prefetch_maybegetandpin_test();
return 0;
}
|
