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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
/* verify that get_and_pin waits while a prefetch block is pending */
#ident "$Id$"
#ident "Copyright (c) 2007-2012 Tokutek Inc. All rights reserved."
#include "includes.h"
#include "test.h"
bool do_sleep;
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)
) {
if (do_sleep) {
sleep(3);
}
}
static uint64_t tdelta_usec(struct timeval *tend, struct timeval *tstart) {
uint64_t t = tend->tv_sec * 1000000 + tend->tv_usec;
t -= tstart->tv_sec * 1000000 + tstart->tv_usec;
return t;
}
static void cachetable_predef_fetch_maybegetandpin_test (void) {
const int test_limit = 12;
int r;
CACHETABLE ct;
r = toku_create_cachetable(&ct, test_limit, ZERO_LSN, NULL_LOGGER); assert(r == 0);
evictor_test_helpers::disable_ev_thread(&ct->ev);
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);
CACHEKEY key = make_blocknum(0);
uint32_t fullhash = toku_cachetable_hash(f1, make_blocknum(0));
// let's get and pin this node a bunch of times to drive up the clock count
for (int i = 0; i < 20; i++) {
void* value;
long size;
CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL);
wc.flush_callback = flush;
r = toku_cachetable_get_and_pin(
f1,
key,
fullhash,
&value,
&size,
wc,
def_fetch,
def_pf_req_callback,
def_pf_callback,
true,
0
);
assert(r==0);
r = toku_test_cachetable_unpin(f1, key, fullhash, CACHETABLE_DIRTY, make_pair_attr(8));
}
struct timeval tstart;
gettimeofday(&tstart, NULL);
// def_fetch another block, causing an eviction of the first block we made above
do_sleep = true;
void* value2;
long size2;
CACHETABLE_WRITE_CALLBACK wc = def_write_callback(NULL);
r = toku_cachetable_get_and_pin(
f1,
make_blocknum(1),
1,
&value2,
&size2,
wc,
def_fetch,
def_pf_req_callback,
def_pf_callback,
true,
0
);
assert(r==0);
ct->ev.signal_eviction_thread();
usleep(1*1024*1024);
r = toku_test_cachetable_unpin(f1, make_blocknum(1), 1, CACHETABLE_CLEAN, make_pair_attr(8));
toku_cachetable_verify(ct);
void *v = 0;
long size = 0;
// now verify that the block we are trying to evict is gone
wc = def_write_callback(NULL);
wc.flush_callback = flush;
r = toku_cachetable_get_and_pin_nonblocking(f1, key, fullhash, &v, &size, wc, def_fetch, def_pf_req_callback, def_pf_callback, PL_WRITE_EXPENSIVE, NULL, NULL);
assert(r == TOKUDB_TRY_AGAIN);
r = toku_cachetable_get_and_pin(f1, key, fullhash, &v, &size, wc, def_fetch, def_pf_req_callback, def_pf_callback, true, NULL);
assert(r == 0 && v == 0 && size == 8);
do_sleep = false;
struct timeval tend;
gettimeofday(&tend, NULL);
assert(tdelta_usec(&tend, &tstart) >= 2000000);
if (verbose)printf("time %" PRIu64 " \n", tdelta_usec(&tend, &tstart));
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);
r = toku_cachefile_close(&f1, 0, false, ZERO_LSN); assert(r == 0);
r = toku_cachetable_close(&ct); assert(r == 0 && ct == 0);
}
int
test_main(int argc, const char *argv[]) {
default_parse_args(argc, argv);
cachetable_predef_fetch_maybegetandpin_test();
return 0;
}
|
