🚀 go-pugleaf

On 2/8/02 4:27 AM, in article B889043E.1AB3%petrock99-NOSPAM@hotmail.com,
"petrock99" <petrock99-NOSPAM@hotmail.com> wrote:

>>> Does CW7 support directly calling functions from IOKit?
>> 
>> No, Pro 7 doesn't support this.
>   You definitely can call IOKit functions from a CW project, you just have
> to have the right frameworks/headers/libraries linked in.  I recently added
> code to one of my projects that would gather a bunch of info on the
> processor(s) that my app was running on (i.e. Bus speed, CPU speed, , cache
> size/tupe, CPU version etc etc).  The only way to do that in a Mach-O app is
> through IOKit...  You can use a command line tool called ioreg to help you
> figure out what keys to use etc...  There is also the IORegistryExplorer in
> /Developer/Applications that does pretty much the same thing as ioreg, but
> with a GUI.
>   The project is currently at work, I'll post up any funky settings I had
> tomorrow...
    I took a look at my project, I didn't have any funky access paths, or
frameworks.  I had the default Mach-O stationary access paths, and System,
IOKit and CoreFoundation frameworks...

The insludes I had in my source were

#include <stdio.h>  // it was a console app...
#include <stdlib.h>

    // these are the only other includes I had...
#include <mach/port.h>
#include <mach/kern_return.h>
#include <IOKit/IOKitLib.h>
#include <CoreFoundation/CFNumber.h>
#include <CoreFoundation/CFSet.h>



Here's a snippit of my code...  This snippit will get the master port, then
get a "reference" to the cpus in the registry (not that cpus will point to
one or more cpu's...  You need to setup an iterator to get to the underlying
cpu data)

    mach_port_t         masterport  = MACH_PORT_NULL;    // (don't release)
    io_registry_entry_t cpus        = MACH_PORT_NULL;    // (needs release)
    io_iterator_t       iter        = NULL;              // (needs release)
    kern_return_t       status        = KERN_SUCCESS;
    
        // get master port
    status = IOMasterPort(bootstrap_port, &masterPort);
    if( status == KERN_SUCCESS )
        cpus = IORegistryEntryFromPath( masterPort, kIODeviceTreePlane
":/cpus" );
    if( cpus != MACH_PORT_NULL )
        status = IORegistryEntryGetChildIterator( cpus, kIODeviceTreePlane,
&iter );

                // clean up
    if( cpus != MACH_PORT_NULL )    {
        IOObjectRelease( cpus );
        cpus = MACH_PORT_NULL;
    }
    


Good luck...

--Rob