谁能告诉我mm-1.1.3的mm是指的什么?

谁能告诉我mm-1.1.3的mm是指的什么?

在网上搜索不到,可能是太常识的东西,但是对我这个新手来说根本不知道它是什么,做啥子用?谁能给我解释下,谢谢
友情up
mm的名字来自于memory mapped,原文如此:

The abbreviation OSSP mm is historically and originally comes from the phrase ''memory mapped'' as used by the POSIX .1 mmap(2) function. Because this facility is internally used by this library on most platforms to establish the shared memory segments.