fuchsia.scheduler

PROTOCOLS

RoleManager

Defined in fuchsia.scheduler/role.fidl

Allows callers to modify the runtime profiles of zircon objects.

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

TABLES

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_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_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