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-rw-r--r--test/tt3_shared.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/test/tt3_shared.c b/test/tt3_shared.c
new file mode 100644
index 0000000..5bdadd1
--- /dev/null
+++ b/test/tt3_shared.c
@@ -0,0 +1,55 @@
+/*
+** 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);
+}
+