osfmk/pmc/pmc.h

79  * Method types for performance monitor driver registration
117  * @abstract A set of method pointers to be used when interacting with a performance monitor object
119  * interacting with a new performance monitor from the kernel.
337  * @abstract Registers a new performance monitor driver and its associated pointers.
338  * @discussion Kexts that implement performance monitor drivers will call this method with a
341  * @param monitor A handle to the performance monitor driver instance you are registering. Must not be NULL.
345  * KERN_RESOURCE_SHORTAGE if the kernel lacks the resources to register another performance monitor
356 kern_return_t perf_monitor_register(perf_monitor_object_t monitor, perf_monitor_methods_t *methods);
359  * @abstract Unregisters a performance monitor driver and frees space associated with its pointers.
360  * @discussion Kexts that implement performance monitor drivers will call this method just before they unload
361  * to cause the performance monitor they implement to be removed from the kernel's PMC system.
362  * @param monitor A handle to a performance monitor driver instance that was previously registered with <link>perf_monitor_register</link>
364  * passed-in perf_monitor_object_t does not match any registered performance monitor, KERN_INVALID_ARGUMENT if
365  * the argument is null, KERN_FAILURE if the performance monitor is currently in use.
367 kern_return_t perf_monitor_unregister(perf_monitor_object_t monitor);
374  * @param monitor A handle to a Performance Monitor that was previously registered.
375  * @param pmc A handle to the Performance Counter instance to be attached to the monitor object
383 kern_return_t pmc_register(perf_monitor_object_t monitor, pmc_object_t pmc,
389  * @param monitor The registered Performance Monitor from which to remove a pmc.
395 kern_return_t pmc_unregister(perf_monitor_object_t monitor, pmc_object_t pmc);
408  * @abstract In-kernel object to track a driver-implemented performance monitor.
455 	perf_monitor_t monitor;