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
|
/*
** 2020 September 5
**
** The author disclaims copyright to this source code. In place of
** a legal notice, here is a blessing:
**
** May you do good and not evil.
** May you find forgiveness for yourself and forgive others.
** May you share freely, never taking more than you give.
**
*************************************************************************
**
**
*/
/*
*/
static char *shared_thread1(int iTid, void *pArg){
Error err = {0}; /* Error code and message */
while( !timetostop(&err) ){
Sqlite db = {0}; /* SQLite database connection */
opendb(&err, &db, "test.db", 0);
sql_script(&err, &db, "SELECT * FROM t1");
closedb(&err, &db);
}
print_and_free_err(&err);
return sqlite3_mprintf("done!");
}
static void shared1(int nMs){
Error err = {0};
Sqlite db = {0}; /* SQLite database connection */
Threadset threads = {0};
int ii;
opendb(&err, &db, "test.db", 1);
sql_script(&err, &db, "CREATE TABLE t1(x)");
closedb(&err, &db);
setstoptime(&err, nMs);
sqlite3_enable_shared_cache(1);
for(ii=0; ii<5; ii++){
launch_thread(&err, &threads, shared_thread1, 0);
}
join_all_threads(&err, &threads);
sqlite3_enable_shared_cache(0);
print_and_free_err(&err);
}
|
