harmony 鸿蒙type_def.h
type_def.h
Overview
The type_def.h file declares the common types.
File to include: <ffrt/type_def.h>
Library: libffrt.z.so
System capability: SystemCapability.Resourceschedule.Ffrt.Core
Since: 10
Related module: FFRT
Summary
Structs
| Name | Description |
|---|---|
| struct ffrt_function_header_t | Describes a task execution function. |
| struct ffrt_dependence_t | Describes dependency data. |
| struct ffrt_deps_t | Describes dependencies. |
| struct ffrt_task_attr_t | Describes a task attribute. |
| struct ffrt_queue_attr_t | Describes a queue attribute. |
| struct ffrt_condattr_t | Describes a condition variable attribute. |
| struct ffrt_mutexattr_t | Describes a mutex attribute. |
| struct ffrt_rwlockattr_t | Describes a read-write lock attribute. |
| struct ffrt_mutex_t | Describes a mutex. |
| struct ffrt_rwlock_t | Describes a read-write lock. |
| struct ffrt_cond_t | Describes a condition variable. |
Types
| Name | Description |
|---|---|
| typedef int ffrt_qos_t | QoS type. |
| typedef void(* ffrt_function_t) (void *) | Defines the type of the pointer to a task execution function. |
| typedef void * ffrt_task_handle_t | Defines the handle to a task. |
| typedef void(* ffrt_poller_cb) (void *data, uint32_t event) | The poller callback function definition. |
| typedef void(* ffrt_timer_cb) (void *data) | The timer callback function definition. |
| typedef int ffrt_timer_t | Handle to the timer. |
Enums
| Name | Description |
|---|---|
| ffrt_queue_priority_t { ffrt_queue_priority_immediate = 0, ffrt_queue_priority_high, ffrt_queue_priority_low, ffrt_queue_priority_idle } |
Enumerates the task priority types. |
| ffrt_qos_default_t { ffrt_qos_inherit = -1, ffrt_qos_background, ffrt_qos_utility, ffrt_qos_default, ffrt_qos_user_initiated } |
Enumerates the task QoS types. |
| ffrt_storage_size_t { ffrt_task_attr_storage_size = 128, ffrt_auto_managed_function_storage_size = 64 + sizeof(ffrt_function_header_t), ffrt_mutex_storage_size = 64, ffrt_cond_storage_size = 64, ffrt_queue_attr_storage_size = 128 } |
Enumerates the storage sizes available for different types of structs. |
| ffrt_function_kind_t { ffrt_function_kind_general, ffrt_function_kind_queue } |
Enumerates the task types. |
| ffrt_dependence_type_t { ffrt_dependence_data, ffrt_dependence_task } |
Enumerates the dependency types. |
| ffrt_error_t { ffrt_error = -1, ffrt_success = 0, ffrt_error_nomem = ENOMEM, ffrt_error_timedout = ETIMEDOUT, ffrt_error_busy = EBUSY, ffrt_error_inval = EINVAL } |
Enumerates the FFRT error codes. |
| ffrt_mutex_type { ffrt_mutex_normal = 0, ffrt_mutex_recursive = 2, ffrt_mutex_default = ffrt_mutex_normal } |
Enumerates the mutex types. |
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