build/Desktop-Debug/.qtc_clangd/.cache/clangd/index/qos.h.0F1A2670F2D1FCB6.idx

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 @function pthread_attr_get_qos_class_np

 @abstract
 Gets the QOS class and relative priority of a pthread attribute structure.

 @param __attr
 The pthread attribute structure to inspect.

 @param __qos_class
 On output, a QOS class value:
	- QOS_CLASS_USER_INTERACTIVE
	- QOS_CLASS_USER_INITIATED
	- QOS_CLASS_DEFAULT
	- QOS_CLASS_UTILITY
	- QOS_CLASS_BACKGROUND
	- QOS_CLASS_UNSPECIFIED
 This value may be NULL in which case no value is returned.

 @param __relative_priority
 On output, a relative priority offset within the QOS class.
 This value may be NULL in which case no value is returned.

 @return
 Zero if successful, otherwise an errno value.
 
 @function pthread_attr_set_qos_class_np

 @abstract
 Sets the QOS class and relative priority of a pthread attribute structure
 which may be used to specify the requested QOS class of newly created
 threads.

 @discussion
 The QOS class and relative priority represent an overall combination of
 system quality of service attributes on a thread.

 Subsequent calls to interfaces such as pthread_attr_setschedparam() that are
 incompatible or in conflict with the QOS class system will unset the QOS
 class requested with this interface and pthread_attr_get_qos_class_np() will
 return QOS_CLASS_UNSPECIFIED.

 @param __attr
 The pthread attribute structure to modify.

 @param __qos_class
 A QOS class value:
	- QOS_CLASS_USER_INTERACTIVE
	- QOS_CLASS_USER_INITIATED
	- QOS_CLASS_DEFAULT
	- QOS_CLASS_UTILITY
	- QOS_CLASS_BACKGROUND
 EINVAL will be returned if any other value is provided.

 @param __relative_priority
 A relative priority within the QOS class. This value is a negative offset
 from the maximum supported scheduler priority for the given class.
 EINVAL will be returned if the value is greater than zero or less than
 QOS_MIN_RELATIVE_PRIORITY.

 @return
 Zero if successful, otherwise an errno value.
 
 @function pthread_get_qos_class_np

 @abstract
 Gets the requested QOS class and relative priority of a thread.

 @param __pthread
 The target thread to inspect.

 @param __qos_class
 On output, a QOS class value:
	- QOS_CLASS_USER_INTERACTIVE
	- QOS_CLASS_USER_INITIATED
	- QOS_CLASS_DEFAULT
	- QOS_CLASS_UTILITY
	- QOS_CLASS_BACKGROUND
	- QOS_CLASS_UNSPECIFIED
 This value may be NULL in which case no value is returned.

 @param __relative_priority
 On output, a relative priority offset within the QOS class.
 This value may be NULL in which case no value is returned.

 @return
 Zero if successful, otherwise an errno value.
 
 @function pthread_override_qos_class_end_np

 @abstract
 Ends a QOS class override.

 @discussion
 Passing an override object returned by pthread_override_qos_class_start_np()
 ends the QOS class override started by that call and deallocates all
 associated resources as well as the override object itself.

 The thread starting and the thread ending a QOS class override need not be
 identical. If the thread ending the override is the the target thread of the
 override itself, it should take care to elevate its requested QOS class
 appropriately with pthread_set_qos_class_self_np() before ending the
 override.

 @param __override
 An override object returned by pthread_override_qos_class_start_np().

 @return
 Zero if successful, otherwise an errno value.
 
 @function pthread_override_qos_class_start_np

 @abstract
 Starts a QOS class override of the specified target thread.

 @discussion
 Starting a QOS class override of the specified target thread expresses that
 an item of pending work classified with the specified QOS class and relative
 priority depends on the completion of the work currently being executed by
 the thread (e.g. due to ordering requirements).

 While overrides are in effect, the specified target thread will execute at
 the maximum QOS class and relative priority of all overrides and of the QOS
 class requested by the thread itself.

 Starting a QOS class override does not modify the target thread's requested
 QOS class value and the effect of an override is not visible to the
 qos_class_self() and pthread_get_qos_class_np() interfaces.

 The returned newly allocated override object is intended to be associated
 with the item of pending work in question. Once the dependency has been
 satisfied and enabled that work to begin executing, the QOS class override
 must be ended by passing the associated override object to
 pthread_override_qos_class_end_np(). Failure to do so will result in the
 associated resources to be leaked and the target thread to be permanently
 executed at an inappropriately elevated QOS class.

 @param __pthread
 The target thread to modify.

 @param __qos_class
 A QOS class value:
	- QOS_CLASS_USER_INTERACTIVE
	- QOS_CLASS_USER_INITIATED
	- QOS_CLASS_DEFAULT
	- QOS_CLASS_UTILITY
	- QOS_CLASS_BACKGROUND
 NULL will be returned if any other value is provided.

 @param __relative_priority
 A relative priority within the QOS class. This value is a negative offset
 from the maximum supported scheduler priority for the given class.
 NULL will be returned if the value is greater than zero or less than
 QOS_MIN_RELATIVE_PRIORITY.

 @return
 A newly allocated override object if successful, or NULL if the override
 could not be started.
 
 @function pthread_set_qos_class_self_np

 @abstract
 Sets the requested QOS class and relative priority of the current thread.

 @discussion
 The QOS class and relative priority represent an overall combination of
 system quality of service attributes on a thread.

 Subsequent calls to interfaces such as pthread_setschedparam() that are
 incompatible or in conflict with the QOS class system will unset the QOS
 class requested with this interface and pthread_get_qos_class_np() will
 return QOS_CLASS_UNSPECIFIED thereafter. A thread so modified is permanently
 opted-out of the QOS class system and calls to this function to request a QOS
 class for such a thread will fail and return EPERM.

 @param __qos_class
 A QOS class value:
	- QOS_CLASS_USER_INTERACTIVE
	- QOS_CLASS_USER_INITIATED
	- QOS_CLASS_DEFAULT
	- QOS_CLASS_UTILITY
	- QOS_CLASS_BACKGROUND
 EINVAL will be returned if any other value is provided.

 @param __relative_priority
 A relative priority within the QOS class. This value is a negative offset
 from the maximum supported scheduler priority for the given class.
 EINVAL will be returned if the value is greater than zero or less than
 QOS_MIN_RELATIVE_PRIORITY.

 @return
 Zero if successful, otherwise an errno value.
 
 @typedef pthread_override_t

 @abstract
 An opaque object representing a QOS class override of a thread.

 @discussion
 A QOS class override of a target thread expresses that an item of pending
 work classified with a specific QOS class and relative priority depends on
 the completion of the work currently being executed by the thread (e.g. due
 to ordering requirements).

 While overrides are in effect, the target thread will execute at the maximum
 QOS class and relative priority of all overrides and of the QOS class
 requested by the thread itself.

 A QOS class override does not modify the target thread's requested QOS class
 value and the effect of an override is not visible to the qos_class_self()
 and pthread_get_qos_class_np() interfaces.
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