在OS X后备内存 [英] Reserve memory on OS X

问题描述

什么是等同于Windows的虚拟在OS X？也就是说，我怎么能保留一个连续的地址空间，而无需实际commiting它，然后再提交它的块？

What's the equivalent to Windows's VirtualAlloc in OS X? That is, how can i reserve a contiguous address space without actually commiting it and then commit chunks of it later?

谢谢，

亚历

推荐答案

的<一个href=\"http://developer.apple.com/mac/library/documentation/Darwin/Reference/ManPages/man2/mmap.2.html\"><$c$c>mmap()函数，调用 MAP_ANON | MAP_PRIVATE ，很大致相当于虚拟（）与 MEM_RESERVE 标记。内存然后通过在映射触及每个页面提交。

The mmap() function, called with MAP_ANON | MAP_PRIVATE, is very roughly equivalent to VirtualAlloc() with the MEM_RESERVE flag. Memory is then committed by touching each page in the mapping.

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