[sql] Remove SQLite 3.10.2 reference directory.

third_party/sqlite/sqlite-src-3100200/test/tt3_vacuum.c

-/*
-** 2014 December 9
-**
-** 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.
-**
-*************************************************************************
-**
-** This file contains multi-threaded tests that use shared-cache and 
-** the VACUUM command.
-**
-** Tests:
-**
-**     vacuum1
-**
-*/
-
-
-static char *vacuum1_thread_writer(int iTid, void *pArg){
-  Error err = {0};                /* Error code and message */
-  Sqlite db = {0};                /* SQLite database connection */
-  opendb(&err, &db, "test.db", 0);
-  i64 i = 0;
-
-  while( !timetostop(&err) ){
-    i++;
-
-    /* Insert lots of rows. Then delete some. */
-    execsql(&err, &db, 
-        "WITH loop(i) AS (SELECT 1 UNION ALL SELECT i+1 FROM loop WHERE i<100) "
-        "INSERT INTO t1 SELECT randomblob(50), randomblob(2500) FROM loop"
-    );
-
-    /* Delete lots of rows */
-    execsql(&err, &db, "DELETE FROM t1 WHERE rowid = :i", &i);
-    clear_error(&err, SQLITE_LOCKED);
-
-    /* Select the rows */
-    execsql(&err, &db, "SELECT * FROM t1 ORDER BY x");
-    clear_error(&err, SQLITE_LOCKED);
-  }
-
-  closedb(&err, &db);
-  print_and_free_err(&err);
-  return sqlite3_mprintf("ok");
-}
-
-static char *vacuum1_thread_vacuumer(int iTid, void *pArg){
-  Error err = {0};                /* Error code and message */
-  Sqlite db = {0};                /* SQLite database connection */
-  opendb(&err, &db, "test.db", 0);
-
-  do{
-    sql_script(&err, &db, "VACUUM");
-    clear_error(&err, SQLITE_LOCKED);
-  }while( !timetostop(&err) );
-
-  closedb(&err, &db);
-  print_and_free_err(&err);
-  return sqlite3_mprintf("ok");
-}
-
-static void vacuum1(int nMs){
-  Error err = {0};
-  Sqlite db = {0};
-  Threadset threads = {0};
-
-  opendb(&err, &db, "test.db", 1);
-  sql_script(&err, &db, 
-     "CREATE TABLE t1(x PRIMARY KEY, y BLOB);"
-     "CREATE INDEX i1 ON t1(y);"
-  );
-  closedb(&err, &db);
-
-  setstoptime(&err, nMs);
-
-  sqlite3_enable_shared_cache(1);
-  launch_thread(&err, &threads, vacuum1_thread_writer, 0);
-  launch_thread(&err, &threads, vacuum1_thread_writer, 0);
-  launch_thread(&err, &threads, vacuum1_thread_writer, 0);
-  launch_thread(&err, &threads, vacuum1_thread_vacuumer, 0);
-  join_all_threads(&err, &threads);
-  sqlite3_enable_shared_cache(0);
-
-  print_and_free_err(&err);
-}