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Re: Mach system calls from carbon?

Subject: Re: Mach system calls from carbon?
From: Jan Brittenson <email@hidden>
Date: Sat, 29 Jan 2005 17:22:10 -0800
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Robert Purves wrote:


// subtract from 4GB
    return (vm_size_t) (1LL << 32) - total;


This assumes the full 4GB is actually available...

You should also be able to get the total number of allocated pages with task_info(TASK_BASIC_INFO) without an exhaustive survey of the address space. See http://www.gnu.org/software/hurd/gnumach-doc/mach_7.html#SEC64 for the call. struct task_basic_info is declared in mach/task_info.h.


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