sqlite3OsSleep   51075 ext/sqlite3/libsqlite/sqlite3.c     sqlite3OsSleep(pWal->pVfs, nDelay);
sqlite3OsSleep   129388 ext/sqlite3/libsqlite/sqlite3.c   sqlite3OsSleep(db->pVfs, delay*1000);
sqlite3OsSleep   129396 ext/sqlite3/libsqlite/sqlite3.c   sqlite3OsSleep(db->pVfs, 1000000);
sqlite3OsSleep   131292 ext/sqlite3/libsqlite/sqlite3.c   rc = (sqlite3OsSleep(pVfs, 1000*ms)/1000);