
Find total memory in use under OS X (XOP)

KevinRBoyce
So, here is what I use to find the total amount of the memory space in use, from within an XOP, on OS X.
<br /> /*<br /> Return the number of bytes allocated to our memory space.<br /> This should include all memory-mapped files and all shared memory.<br /> We need to know if we're running out of space for our 32-bit pointers.<br /> */<br /> uint64_t memInUse()<br /> {<br /> kern_return_t kr;<br /> struct task_basic_info_64 ti;<br /> mach_msg_type_number_t count;<br /> <br /> count = TASK_BASIC_INFO_64_COUNT;<br /> kr = task_info( mach_task_self(), TASK_BASIC_INFO_64, (task_info_t)&ti, &count);<br /> <br /> return ti.virtual_size;<br /> }<br />
For some reason, task_info() does not seem to have a manual entry in Mavericks, but you can read the description at http://www.gnu.org/software/hurd/gnumach-doc/Task-Information.html

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