2 #include "tdb1-lock-tracking.h"
5 static ssize_t
pwrite_check(int fd
, const void *buf
, size_t count
, off_t offset
);
6 static ssize_t
write_check(int fd
, const void *buf
, size_t count
);
7 static int ftruncate_check(int fd
, off_t length
);
9 #define pwrite pwrite_check
10 #define write write_check
11 #define fcntl fcntl_with_lockcheck1
12 #define ftruncate ftruncate_check
14 #include "tdb2-source.h"
15 #include <ccan/tap/tap.h>
20 #include "tdb1-external-agent.h"
21 #include "tdb1-logging.h"
23 static struct agent
*agent
;
25 static int errors
= 0;
26 static bool clear_if_first
;
27 #define TEST_DBNAME "run-open-during-transaction.tdb"
34 static bool is_same(const char *snapshot
, const char *latest
, off_t len
)
38 for (i
= 0; i
< len
; i
++) {
39 if (snapshot
[i
] != latest
[i
])
45 static bool compare_file(int fd
, const char *snapshot
, off_t snapshot_len
)
50 /* over-length read serves as length check. */
51 contents
= malloc(snapshot_len
+1);
52 same
= pread(fd
, contents
, snapshot_len
+1, 0) == snapshot_len
53 && is_same(snapshot
, contents
, snapshot_len
);
58 static void check_file_intact(int fd
)
60 enum agent_return ret
;
65 contents
= malloc(st
.st_size
);
66 if (pread(fd
, contents
, st
.st_size
, 0) != st
.st_size
) {
72 /* Ask agent to open file. */
73 ret
= external_agent_operation1(agent
, clear_if_first
?
74 OPEN_WITH_CLEAR_IF_FIRST
:
78 /* It's OK to open it, but it must not have changed! */
79 if (!compare_file(fd
, contents
, st
.st_size
)) {
80 diag("Agent changed file after opening %s",
81 agent_return_name1(ret
));
86 ret
= external_agent_operation1(agent
, CLOSE
, NULL
);
88 diag("Agent failed to close tdb: %s",
89 agent_return_name1(ret
));
92 } else if (ret
!= WOULD_HAVE_BLOCKED
) {
93 diag("Agent opening file gave %s",
94 agent_return_name1(ret
));
101 static void after_unlock(int fd
)
104 check_file_intact(fd
);
107 static ssize_t
pwrite_check(int fd
,
108 const void *buf
, size_t count
, off_t offset
)
111 check_file_intact(fd
);
113 return pwrite(fd
, buf
, count
, offset
);
116 static ssize_t
write_check(int fd
, const void *buf
, size_t count
)
119 check_file_intact(fd
);
121 return write(fd
, buf
, count
);
124 static int ftruncate_check(int fd
, off_t length
)
127 check_file_intact(fd
);
129 return ftruncate(fd
, length
);
133 int main(int argc
, char *argv
[])
135 const int flags
[] = { TDB1_DEFAULT
,
138 TDB1_CLEAR_IF_FIRST
| TDB1_NOMMAP
};
140 struct tdb1_context
*tdb
;
144 agent
= prepare_external_agent1();
146 err(1, "preparing agent");
148 unlock_callback1
= after_unlock
;
149 for (i
= 0; i
< sizeof(flags
)/sizeof(flags
[0]); i
++) {
150 clear_if_first
= (flags
[i
] & TDB1_CLEAR_IF_FIRST
);
151 diag("Test with %s and %s\n",
152 clear_if_first
? "CLEAR" : "DEFAULT",
153 (flags
[i
] & TDB1_NOMMAP
) ? "no mmap" : "mmap");
155 tdb
= tdb1_open_ex(TEST_DBNAME
, 1024, flags
[i
],
156 O_CREAT
|O_TRUNC
|O_RDWR
, 0600,
161 ok1(tdb1_transaction_start(tdb
) == 0);
162 key
.dsize
= strlen("hi");
163 key
.dptr
= (void *)"hi";
164 data
.dptr
= (void *)"world";
165 data
.dsize
= strlen("world");
167 ok1(tdb1_store(tdb
, key
, data
, TDB_INSERT
) == 0);
168 ok1(tdb1_transaction_commit(tdb
) == 0);
169 ok(!errors
, "We had %u open errors", errors
);
175 return exit_status();