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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2011 New Dream Network
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#include "gtest/gtest.h"
#include "include/compat.h"
#include "include/cephfs/libcephfs.h"
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <thread>
#ifdef __linux__
#include <sys/xattr.h>
#endif
TEST(LibCephFS, MulticlientSimple) {
struct ceph_mount_info *ca, *cb;
ASSERT_EQ(ceph_create(&ca, NULL), 0);
ASSERT_EQ(ceph_conf_read_file(ca, NULL), 0);
ASSERT_EQ(0, ceph_conf_parse_env(ca, NULL));
ASSERT_EQ(ceph_mount(ca, NULL), 0);
ASSERT_EQ(ceph_create(&cb, NULL), 0);
ASSERT_EQ(ceph_conf_read_file(cb, NULL), 0);
ASSERT_EQ(0, ceph_conf_parse_env(cb, NULL));
ASSERT_EQ(ceph_mount(cb, NULL), 0);
char name[20];
snprintf(name, sizeof(name), "foo.%d", getpid());
int fda = ceph_open(ca, name, O_CREAT|O_RDWR, 0644);
ASSERT_LE(0, fda);
int fdb = ceph_open(cb, name, O_CREAT|O_RDWR, 0644);
ASSERT_LE(0, fdb);
char bufa[4] = "foo";
char bufb[4];
for (int i=0; i<10; i++) {
strcpy(bufa, "foo");
ASSERT_EQ((int)sizeof(bufa), ceph_write(ca, fda, bufa, sizeof(bufa), i*6));
ASSERT_EQ((int)sizeof(bufa), ceph_read(cb, fdb, bufb, sizeof(bufa), i*6));
ASSERT_EQ(0, memcmp(bufa, bufb, sizeof(bufa)));
strcpy(bufb, "bar");
ASSERT_EQ((int)sizeof(bufb), ceph_write(cb, fdb, bufb, sizeof(bufb), i*6+3));
ASSERT_EQ((int)sizeof(bufb), ceph_read(ca, fda, bufa, sizeof(bufb), i*6+3));
ASSERT_EQ(0, memcmp(bufa, bufb, sizeof(bufa)));
}
ceph_close(ca, fda);
ceph_close(cb, fdb);
ceph_shutdown(ca);
ceph_shutdown(cb);
}
TEST(LibCephFS, MulticlientHoleEOF) {
struct ceph_mount_info *ca, *cb;
ASSERT_EQ(ceph_create(&ca, NULL), 0);
ASSERT_EQ(ceph_conf_read_file(ca, NULL), 0);
ASSERT_EQ(0, ceph_conf_parse_env(ca, NULL));
ASSERT_EQ(ceph_mount(ca, NULL), 0);
ASSERT_EQ(ceph_create(&cb, NULL), 0);
ASSERT_EQ(ceph_conf_read_file(cb, NULL), 0);
ASSERT_EQ(0, ceph_conf_parse_env(cb, NULL));
ASSERT_EQ(ceph_mount(cb, NULL), 0);
char name[20];
snprintf(name, sizeof(name), "foo.%d", getpid());
int fda = ceph_open(ca, name, O_CREAT|O_RDWR, 0644);
ASSERT_LE(0, fda);
int fdb = ceph_open(cb, name, O_CREAT|O_RDWR, 0644);
ASSERT_LE(0, fdb);
ASSERT_EQ(3, ceph_write(ca, fda, "foo", 3, 0));
ASSERT_EQ(0, ceph_ftruncate(ca, fda, 1000000));
char buf[4];
ASSERT_EQ(2, ceph_read(cb, fdb, buf, sizeof(buf), 1000000-2));
ASSERT_EQ(0, buf[0]);
ASSERT_EQ(0, buf[1]);
ceph_close(ca, fda);
ceph_close(cb, fdb);
ceph_shutdown(ca);
ceph_shutdown(cb);
}
static void write_func(bool *stop)
{
struct ceph_mount_info *cmount;
ASSERT_EQ(ceph_create(&cmount, NULL), 0);
ASSERT_EQ(ceph_conf_read_file(cmount, NULL), 0);
ASSERT_EQ(0, ceph_conf_parse_env(cmount, NULL));
ASSERT_EQ(ceph_mount(cmount, "/"), 0);
char name[20];
snprintf(name, sizeof(name), "foo.%d", getpid());
int fd = ceph_open(cmount, name, O_CREAT|O_RDWR, 0644);
ASSERT_LE(0, fd);
int buf_size = 4096;
char *buf = (char *)malloc(buf_size);
if (!buf) {
*stop = true;
printf("write_func failed to allocate buffer!");
return;
}
memset(buf, 1, buf_size);
while (!(*stop)) {
int i;
// truncate the file size to 4096 will set the max_size to 4MB.
ASSERT_EQ(0, ceph_ftruncate(cmount, fd, 4096));
// write 4MB + extra 64KB data will make client to trigger to
// call check_cap() to report new size. And if MDS is revoking
// the Fsxrw caps and we are still holding the Fw caps and will
// trigger tracker#57244.
for (i = 0; i < 1040; i++) {
ASSERT_EQ(ceph_write(cmount, fd, buf, buf_size, 0), buf_size);
}
}
ceph_shutdown(cmount);
}
static void setattr_func(bool *stop)
{
struct ceph_mount_info *cmount;
ASSERT_EQ(ceph_create(&cmount, NULL), 0);
ASSERT_EQ(ceph_conf_read_file(cmount, NULL), 0);
ASSERT_EQ(0, ceph_conf_parse_env(cmount, NULL));
ASSERT_EQ(ceph_mount(cmount, "/"), 0);
char name[20];
snprintf(name, sizeof(name), "foo.%d", getpid());
int fd = ceph_open(cmount, name, O_CREAT|O_RDWR, 0644);
ASSERT_LE(0, fd);
while (!(*stop)) {
// setattr will make the MDS to acquire xlock for the filelock and
// force to revoke caps from clients
struct ceph_statx stx = {.stx_size = 0};
ASSERT_EQ(ceph_fsetattrx(cmount, fd, &stx, CEPH_SETATTR_SIZE), 0);
}
ceph_shutdown(cmount);
}
TEST(LibCephFS, MulticlientRevokeCaps) {
std::thread thread1, thread2;
bool stop = false;
int wait = 60; // in second
thread1 = std::thread(write_func, &stop);
thread2 = std::thread(setattr_func, &stop);
printf(" Will run test for %d seconds!\n", wait);
sleep(wait);
stop = true;
thread1.join();
thread2.join();
}
|
