[sql] Remove SQLite 3.10.2 reference directory.

third_party/sqlite/sqlite-src-3100200/test/tt3_lookaside1.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.
-**
-*************************************************************************
-**
-**     lookaside1
-*/
-
-/*
-** The test in this file attempts to expose a specific race condition
-** that is suspected to exist at time of writing.
-*/
-
-static char *lookaside1_thread_reader(int iTid, void *pArg){
-  Error err = {0};                /* Error code and message */
-  Sqlite db = {0};                /* SQLite database connection */
-
-  opendb(&err, &db, "test.db", 0);
-
-  while( !timetostop(&err) ){
-    sqlite3_stmt *pStmt = 0;
-    int rc;
-
-    sqlite3_prepare_v2(db.db, "SELECT 1 FROM t1", -1, &pStmt, 0);
-    while( sqlite3_step(pStmt)==SQLITE_ROW ){
-      execsql(&err, &db, "SELECT length(x||y||z) FROM t2");
-    }
-    rc = sqlite3_finalize(pStmt);
-    if( err.rc==SQLITE_OK && rc!=SQLITE_OK ){
-      sqlite_error(&err, &db, "finalize");
-    }
-  }
-
-  closedb(&err, &db);
-  print_and_free_err(&err);
-  return sqlite3_mprintf("ok");
-}
-
-static char *lookaside1_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);
-
-  do{
-    sql_script(&err, &db, 
-      "BEGIN;"
-        "UPDATE t3 SET i=i+1 WHERE x=1;"
-      "ROLLBACK;"
-    );
-  }while( !timetostop(&err) );
-
-  closedb(&err, &db);
-  print_and_free_err(&err);
-  return sqlite3_mprintf("ok");
-}
-
-
-static void lookaside1(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) WITHOUT ROWID;"
-     "WITH data(x,y) AS ("
-     "  SELECT 1, quote(randomblob(750)) UNION ALL "
-     "  SELECT x*2, y||y FROM data WHERE x<5) "
-     "INSERT INTO t1 SELECT y FROM data;"
-
-     "CREATE TABLE t3(x PRIMARY KEY,i) WITHOUT ROWID;"
-     "INSERT INTO t3 VALUES(1, 1);"
-
-     "CREATE TABLE t2(x,y,z);"
-     "INSERT INTO t2 VALUES(randomblob(50), randomblob(50), randomblob(50));"
-  );
-  closedb(&err, &db);
-
-  setstoptime(&err, nMs);
-
-  sqlite3_enable_shared_cache(1);
-  launch_thread(&err, &threads, lookaside1_thread_reader, 0);
-  launch_thread(&err, &threads, lookaside1_thread_reader, 0);
-  launch_thread(&err, &threads, lookaside1_thread_reader, 0);
-  launch_thread(&err, &threads, lookaside1_thread_reader, 0);
-  launch_thread(&err, &threads, lookaside1_thread_reader, 0);
-  launch_thread(&err, &threads, lookaside1_thread_writer, 0);
-  join_all_threads(&err, &threads);
-  sqlite3_enable_shared_cache(0);
-  print_and_free_err(&err);
-}