thread_call_cancel_wait
Attempt to cancel a pending invocation of a thread call. If unable to cancel, wait for current invocation to finish.
Declaration
boolean_t thread_call_cancel_wait(thread_call_t call);Return Value
TRUE if the call was successfully cancelled, FALSE otherwise.
Discussion
Attempt to cancel a thread call which has been scheduled for execution with a thread_call_enter* variant. If the call has not yet begun executing, the pending invocation will be cancelled and TRUE will be returned. If the work item has already begun executing, thread_call_cancel_wait waits for the most recent invocation to finish. When called on a work item which has already finished, it will return FALSE immediately. Note that this routine can only be used on thread calls set up with either thread_call_allocate or thread_call_allocate_with_priority, and that invocations of the thread call after the current invocation may be in flight when thread_call_cancel_wait returns.
See Also
Thread
current_threadthread_abortthread_abort_safelythread_assignthread_assign_defaultthread_blockthread_block_parameterthread_call_allocatethread_call_allocate_with_optionsthread_call_allocate_with_prioritythread_call_cancelthread_call_enterthread_call_enter1thread_call_enter1_delayedthread_call_enter_delayedthread_call_freethread_call_isactivethread_createthread_create_runningthread_deallocatethread_depress_abortthread_get_assignmentthread_get_exception_portsthread_get_mach_voucherthread_get_special_portthread_get_statethread_has_thread_namethread_infothread_policythread_policy_getthread_policy_setthread_referencethread_resumethread_samplethread_set_exception_portsthread_set_mach_voucherthread_set_policythread_set_special_portthread_set_statethread_set_thread_namethread_suspendthread_swap_exception_portsthread_swap_mach_voucherthread_terminatethread_tidthread_wakeup_primthread_wakeup_threadthread_wirethread_act_array_tthread_act_port_array_tthread_act_port_tthread_act_tthread_affinity_policy_tthread_array_tthread_background_policy_tthread_basic_info_tthread_call_func_tthread_call_options_tthread_call_param_tthread_call_tthread_commandthread_continue_tthread_delta_snapshot_v2thread_delta_snapshot_v3thread_extended_info_tthread_extended_policy_tthread_flavor_tmach_thread_flavor_tthread_group_flagsthread_group_snapshotthread_group_snapshot_v2thread_identifier_info_tthread_info_data_tthread_info_tthread_inspect_tthread_latency_qos_policy_tthread_latency_qos_tthread_policy_flavor_tthread_policy_tthread_port_array_tthread_port_tthread_precedence_policy_tthread_snapshotthread_snapshot_flagsthread_snapshot_v2thread_snapshot_v3thread_snapshot_v4thread_standard_policy_tthread_state_data_tthread_state_flavor_array_tthread_state_flavor_tthread_state_tthread_tthread_throughput_qos_policy_tthread_throughput_qos_tthread_time_constraint_policy_tthread_affinity_policy_data_tthread_background_policy_data_tthread_basic_info_data_tthread_extended_info_data_tthread_extended_policy_data_tthread_identifier_info_data_tthread_latency_qos_policy_data_tthread_precedence_policy_data_tthread_standard_policy_data_tthread_throughput_qos_policy_data_tthread_time_constraint_policy_data_tthread_turnstileinfo_tthread_waitinfo_tact_get_stateact_set_state