What does MMAP stand for?
What does MMAP mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: MMAP.
What does MMAP mean?
- In computing, mmap is a POSIX-compliant Unix system call that maps files or devices into memory. It is a method of memory-mapped file I/O. It naturally implements demand paging, because initially file contents are not entirely read from disk and do not use physical RAM at all. The actual reads from disk are performed in a "lazy" manner, after a specific location is accessed. After the memory is no longer needed it is important to munmap the pointers to it. Protection information can be managed using mprotect and special treatment can be enforced using madvise. In Linux, Mac OS X and the BSDs, mmap can create several types of mappings.