fuchsia.scheduler

PROTOCOLS

RoleManager

Defined in fuchsia.scheduler/role.fidl

Allows callers to modify the runtime profiles of zircon objects.

GetProfileForRole

Returns a profile handle for the requested role.

• request target is the type of profile to retrieve.
• request role is the name of the role to retrieve.
• request input_parameters is a vector of key/value pairs used to distinguish between multiple variants of the same role.

• response profile is the handle to the requested profile.
• response output_parameters is a vector of key/value pairs that roles can be configured to emit.

• error a zx_status value indicating success or failure.

Request

Name	Type
payload	RoleManagerGetProfileForRoleRequest

Response

Name	Type
payload	RoleManager_GetProfileForRole_Result

SetRole

Sets the given object's performance parameters based on the requested role. The exact parameters of the role are system dependent and may vary based on device-specific tuning and/or runtime system goals.

• request target is a handle to a zircon object to which a profile can be applied.
• request role is the name of the role to apply to the target.
• request input_parameters is a vector of key/value pairs used to distinguish between multiple variants of the same role.

• response output_parameters is a vector of key/value pairs that roles can be configured to emit.

• error a zx_status value indicating success or failure.

Request

Name	Type
payload	RoleManagerSetRoleRequest

Response

Name	Type
payload	RoleManager_SetRole_Result

STRUCTS

Parameter

Defined in fuchsia.scheduler/role.fidl

Field	Type	Description	Default
key	string:512		No default
value	ParameterValue		No default

RoleName

Defined in fuchsia.scheduler/role.fidl

Field	Type	Description	Default
role	string:2048		No default

ENUMS

RoleType strict

Type: uint32

Defined in fuchsia.scheduler/role.fidl

Name	Value	Description
TASK	0
MEMORY	1

TABLES

RoleManagerGetProfileForRoleRequest resource

Defined in fuchsia.scheduler/role.fidl

Ordinal	Field	Type	Description
1	target	RoleType
2	role	RoleName
3	input_parameters	vector<Parameter>:512

RoleManagerSetRoleRequest resource

Defined in fuchsia.scheduler/role.fidl

Ordinal	Field	Type	Description
1	target	RoleTarget
2	role	RoleName
3	input_parameters	vector<Parameter>:512

RoleManager_GetProfileForRole_Response resource

Defined in fuchsia.scheduler/role.fidl

Ordinal	Field	Type	Description
1	profile	handle<profile>
2	output_parameters	vector<Parameter>:512

RoleManager_SetRole_Response resource

Defined in fuchsia.scheduler/role.fidl

Ordinal	Field	Type	Description
1	output_parameters	vector<Parameter>:512

UNIONS

ParameterValue flexible

Defined in fuchsia.scheduler/role.fidl

Ordinal	Variant	Type	Description
1	float_value	float64
2	int_value	int64
3	string_value	string:2048

RoleManager_GetProfileForRole_Result strict resource

Defined in fuchsia.scheduler/role.fidl

Ordinal	Variant	Type	Description
1	response	RoleManager_GetProfileForRole_Response
2	err	zx/Status
3	framework_err	internal

RoleManager_SetRole_Result strict resource

Defined in fuchsia.scheduler/role.fidl

Ordinal	Variant	Type	Description
1	response	RoleManager_SetRole_Response
2	err	zx/Status
3	framework_err	internal

RoleTarget flexible resource

Defined in fuchsia.scheduler/role.fidl

A Zircon object to which a profile can be applied. Currently, only threads and vmars are supported.

Ordinal	Variant	Type	Description
1	thread	handle<thread>
2	vmar	handle<vmar>

CONSTANTS

Name	Value	Type	Description
MAX_NAME_LENGTH	2048	int32
MAX_PARAMETER_COUNT	512	int32
MAX_PARAMETER_KEY_LENGTH	512	int32
MAX_PARAMETER_VALUE_LENGTH	2048	int32