bNoShm           50160 ext/sqlite3/libsqlite/sqlite3.c   int bNoShm,                     /* True to run in heap-memory mode */
bNoShm           50198 ext/sqlite3/libsqlite/sqlite3.c   pRet->exclusiveMode = (bNoShm ? WAL_HEAPMEMORY_MODE: WAL_NORMAL_MODE);