tdb2: test: fix run-57-die-during-transaction.c to be more efficient.
[ccan] / ccan / tdb2 / test / run-82-lockattr.c
1 #include "tdb2-source.h"
2 #include <ccan/tap/tap.h>
3 #include "logging.h"
4
5 static int mylock(int fd, int rw, off_t off, off_t len, bool waitflag,
6                   void *_err)
7 {
8         int *lock_err = _err;
9         struct flock fl;
10         int ret;
11
12         if (*lock_err) {
13                 errno = *lock_err;
14                 return -1;
15         }
16
17         do {
18                 fl.l_type = rw;
19                 fl.l_whence = SEEK_SET;
20                 fl.l_start = off;
21                 fl.l_len = len;
22
23                 if (waitflag)
24                         ret = fcntl(fd, F_SETLKW, &fl);
25                 else
26                         ret = fcntl(fd, F_SETLK, &fl);
27         } while (ret != 0 && errno == EINTR);
28
29         return ret;
30 }
31
32 static int trav_err;
33 static int trav(struct tdb_context *tdb, TDB_DATA k, TDB_DATA d, int *err)
34 {
35         *err = trav_err;
36         return 0;
37 }
38
39 int main(int argc, char *argv[])
40 {
41         unsigned int i;
42         struct tdb_context *tdb;
43         int flags[] = { TDB_DEFAULT, TDB_NOMMAP,
44                         TDB_CONVERT, TDB_NOMMAP|TDB_CONVERT,
45                         TDB_VERSION1, TDB_NOMMAP|TDB_VERSION1,
46                         TDB_CONVERT|TDB_VERSION1,
47                         TDB_NOMMAP|TDB_CONVERT|TDB_VERSION1 };
48         union tdb_attribute lock_attr;
49         struct tdb_data key = tdb_mkdata("key", 3);
50         struct tdb_data data = tdb_mkdata("data", 4);
51         int lock_err;
52
53         lock_attr.base.attr = TDB_ATTRIBUTE_FLOCK;
54         lock_attr.base.next = &tap_log_attr;
55         lock_attr.flock.lock = mylock;
56         lock_attr.flock.unlock = tdb_fcntl_unlock;
57         lock_attr.flock.data = &lock_err;
58
59         plan_tests(sizeof(flags) / sizeof(flags[0]) * 80);
60
61         for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
62                 struct tdb_data d;
63                 unsigned int num_oom_messages;
64
65                 /* TDB1 double logs here. */
66                 if (flags[i] & TDB_VERSION1) {
67                         num_oom_messages = 2;
68                 } else {
69                         num_oom_messages = 1;
70                 }
71
72                 /* Nonblocking open; expect no error message. */
73                 lock_err = EAGAIN;
74                 tdb = tdb_open("run-82-lockattr.tdb", flags[i],
75                                O_RDWR|O_CREAT|O_TRUNC, 0600, &lock_attr);
76                 ok(errno == lock_err, "Errno is %u", errno);
77                 ok1(!tdb);
78                 ok1(tap_log_messages == 0);
79
80                 lock_err = EINTR;
81                 tdb = tdb_open("run-82-lockattr.tdb", flags[i],
82                                O_RDWR|O_CREAT|O_TRUNC, 0600, &lock_attr);
83                 ok(errno == lock_err, "Errno is %u", errno);
84                 ok1(!tdb);
85                 ok1(tap_log_messages == 0);
86
87                 /* Forced fail open. */
88                 lock_err = ENOMEM;
89                 tdb = tdb_open("run-82-lockattr.tdb", flags[i],
90                                O_RDWR|O_CREAT|O_TRUNC, 0600, &lock_attr);
91                 ok1(errno == lock_err);
92                 ok1(!tdb);
93                 ok1(tap_log_messages == 1);
94                 tap_log_messages = 0;
95
96                 lock_err = 0;
97                 tdb = tdb_open("run-82-lockattr.tdb", flags[i],
98                                O_RDWR|O_CREAT|O_TRUNC, 0600, &lock_attr);
99                 if (!ok1(tdb))
100                         continue;
101                 ok1(tap_log_messages == 0);
102
103                 /* Nonblocking store. */
104                 lock_err = EAGAIN;
105                 ok1(tdb_store(tdb, key, data, TDB_REPLACE) == TDB_ERR_LOCK);
106                 ok1(tap_log_messages == 0);
107                 lock_err = EINTR;
108                 ok1(tdb_store(tdb, key, data, TDB_REPLACE) == TDB_ERR_LOCK);
109                 ok1(tap_log_messages == 0);
110                 lock_err = ENOMEM;
111                 ok1(tdb_store(tdb, key, data, TDB_REPLACE) == TDB_ERR_LOCK);
112                 ok1(tap_log_messages == num_oom_messages);
113                 tap_log_messages = 0;
114
115                 /* Nonblocking fetch. */
116                 lock_err = EAGAIN;
117                 ok1(!tdb_exists(tdb, key));
118                 ok1(tap_log_messages == 0);
119                 lock_err = EINTR;
120                 ok1(!tdb_exists(tdb, key));
121                 ok1(tap_log_messages == 0);
122                 lock_err = ENOMEM;
123                 ok1(!tdb_exists(tdb, key));
124                 ok1(tap_log_messages == num_oom_messages);
125                 tap_log_messages = 0;
126
127                 lock_err = EAGAIN;
128                 ok1(tdb_fetch(tdb, key, &d) == TDB_ERR_LOCK);
129                 ok1(tap_log_messages == 0);
130                 lock_err = EINTR;
131                 ok1(tdb_fetch(tdb, key, &d) == TDB_ERR_LOCK);
132                 ok1(tap_log_messages == 0);
133                 lock_err = ENOMEM;
134                 ok1(tdb_fetch(tdb, key, &d) == TDB_ERR_LOCK);
135                 ok1(tap_log_messages == num_oom_messages);
136                 tap_log_messages = 0;
137
138                 /* Nonblocking delete. */
139                 lock_err = EAGAIN;
140                 ok1(tdb_delete(tdb, key) == TDB_ERR_LOCK);
141                 ok1(tap_log_messages == 0);
142                 lock_err = EINTR;
143                 ok1(tdb_delete(tdb, key) == TDB_ERR_LOCK);
144                 ok1(tap_log_messages == 0);
145                 lock_err = ENOMEM;
146                 ok1(tdb_delete(tdb, key) == TDB_ERR_LOCK);
147                 ok1(tap_log_messages == num_oom_messages);
148                 tap_log_messages = 0;
149
150                 /* Nonblocking locks. */
151                 lock_err = EAGAIN;
152                 ok1(tdb_chainlock(tdb, key) == TDB_ERR_LOCK);
153                 ok1(tap_log_messages == 0);
154                 lock_err = EINTR;
155                 ok1(tdb_chainlock(tdb, key) == TDB_ERR_LOCK);
156                 ok1(tap_log_messages == 0);
157                 lock_err = ENOMEM;
158                 ok1(tdb_chainlock(tdb, key) == TDB_ERR_LOCK);
159                 ok1(tap_log_messages == num_oom_messages);
160                 tap_log_messages = 0;
161
162                 lock_err = EAGAIN;
163                 ok1(tdb_chainlock_read(tdb, key) == TDB_ERR_LOCK);
164                 ok1(tap_log_messages == 0);
165                 lock_err = EINTR;
166                 ok1(tdb_chainlock_read(tdb, key) == TDB_ERR_LOCK);
167                 ok1(tap_log_messages == 0);
168                 lock_err = ENOMEM;
169                 ok1(tdb_chainlock_read(tdb, key) == TDB_ERR_LOCK);
170                 ok1(tap_log_messages == num_oom_messages);
171                 tap_log_messages = 0;
172
173                 lock_err = EAGAIN;
174                 ok1(tdb_lockall(tdb) == TDB_ERR_LOCK);
175                 ok1(tap_log_messages == 0);
176                 lock_err = EINTR;
177                 ok1(tdb_lockall(tdb) == TDB_ERR_LOCK);
178                 ok1(tap_log_messages == 0);
179                 lock_err = ENOMEM;
180                 ok1(tdb_lockall(tdb) == TDB_ERR_LOCK);
181                 /* This actually does divide and conquer. */
182                 ok1(tap_log_messages > 0);
183                 tap_log_messages = 0;
184
185                 lock_err = EAGAIN;
186                 ok1(tdb_lockall_read(tdb) == TDB_ERR_LOCK);
187                 ok1(tap_log_messages == 0);
188                 lock_err = EINTR;
189                 ok1(tdb_lockall_read(tdb) == TDB_ERR_LOCK);
190                 ok1(tap_log_messages == 0);
191                 lock_err = ENOMEM;
192                 ok1(tdb_lockall_read(tdb) == TDB_ERR_LOCK);
193                 ok1(tap_log_messages > 0);
194                 tap_log_messages = 0;
195
196                 /* Nonblocking traverse; go nonblock partway through. */
197                 lock_err = 0;
198                 ok1(tdb_store(tdb, key, data, TDB_REPLACE) == 0);
199                 trav_err = EAGAIN;
200                 ok1(tdb_traverse(tdb, trav, &lock_err) == TDB_ERR_LOCK);
201                 ok1(tap_log_messages == 0);
202                 trav_err = EINTR;
203                 lock_err = 0;
204                 ok1(tdb_traverse(tdb, trav, &lock_err) == TDB_ERR_LOCK);
205                 ok1(tap_log_messages == 0);
206                 trav_err = ENOMEM;
207                 lock_err = 0;
208                 ok1(tdb_traverse(tdb, trav, &lock_err) == TDB_ERR_LOCK);
209                 ok1(tap_log_messages == num_oom_messages);
210                 tap_log_messages = 0;
211
212                 /* Nonblocking transactions. */
213                 lock_err = EAGAIN;
214                 ok1(tdb_transaction_start(tdb) == TDB_ERR_LOCK);
215                 ok1(tap_log_messages == 0);
216                 lock_err = EINTR;
217                 ok1(tdb_transaction_start(tdb) == TDB_ERR_LOCK);
218                 ok1(tap_log_messages == 0);
219                 lock_err = ENOMEM;
220                 ok1(tdb_transaction_start(tdb) == TDB_ERR_LOCK);
221                 ok1(tap_log_messages == 1);
222                 tap_log_messages = 0;
223
224                 /* Nonblocking transaction prepare. */
225                 lock_err = 0;
226                 ok1(tdb_transaction_start(tdb) == 0);
227                 ok1(tdb_delete(tdb, key) == 0);
228
229                 lock_err = EAGAIN;
230                 ok1(tdb_transaction_prepare_commit(tdb) == TDB_ERR_LOCK);
231                 ok1(tap_log_messages == 0);
232
233                 lock_err = 0;
234                 ok1(tdb_transaction_prepare_commit(tdb) == 0);
235                 ok1(tdb_transaction_commit(tdb) == 0);
236
237                 /* And the transaction was committed, right? */
238                 ok1(!tdb_exists(tdb, key));
239                 tdb_close(tdb);
240                 ok1(tap_log_messages == 0);
241         }
242         return exit_status();
243 }