Back Fitxer mapejat a memòria Catalan Mapování souborů do paměti Czech Archivo proyectado en memoria Spanish Mällu vastendatud fail Estonian فایل حافظه نقشهشده Persian File mappato in memoria Italian メモリマップトファイル Japanese 메모리 맵 파일 Korean Arquivo mapeado em memória Portuguese Отображение файла в память Russian
A memory-mapped file is a segment of virtual memory[1] that has been assigned a direct byte-for-byte correlation with some portion of a file or file-like resource. This resource is typically a file that is physically present on disk, but can also be a device, shared memory object, or other resource that an operating system can reference through a file descriptor. Once present, this correlation between the file and the memory space permits applications to treat the mapped portion as if it were primary memory.