PROTOCOLS
Controller
Defined in fuchsia.tracing.controller/trace_controller.fidl
StartTracing
Request
| Name | Type |
|---|---|
options |
TraceOptions
|
output |
handle<socket>
|
Response
| Name | Type |
|---|
StopTracing
Request
| Name | Type |
|---|
GetProviders
Return the set of registered providers.
Request
| Name | Type |
|---|
Response
| Name | Type |
|---|---|
providers |
vector<ProviderInfo>[100]
|
GetKnownCategories
Request
| Name | Type |
|---|
Response
| Name | Type |
|---|---|
categories |
vector<KnownCategory>
|
STRUCTS
KnownCategory
Defined in fuchsia.tracing.controller/trace_controller.fidl
| Name | Type | Description | Default |
|---|---|---|---|
name |
string[100]
|
No default | |
description |
string
|
No default |
ENUMS
BufferingMode
Type: uint8
Defined in fuchsia.tracing.controller/trace_controller.fidl
| Name | Value | Description |
|---|---|---|
ONESHOT |
0 |
|
CIRCULAR |
1 |
|
STREAMING |
2 |
TABLES
ProviderSpec
Defined in fuchsia.tracing.controller/trace_controller.fidl
| Ordinal | Name | Type | Description |
|---|---|---|---|
| 1 | name |
string[100]
|
|
| 2 | buffer_size_megabytes_hint |
uint32
|
TraceOptions
Defined in fuchsia.tracing.controller/trace_controller.fidl
Provides options for the trace.
| Ordinal | Name | Type | Description |
|---|---|---|---|
| 1 | categories |
vector<string>[100]
|
The trace categories to record, or an empty array for all. |
| 2 | buffer_size_megabytes_hint |
uint32
|
Suggested size of trace buffer which each provider should receive. |
| 3 | start_timeout_milliseconds |
uint64
|
Acknowledge start request after at most |
| 4 | buffering_mode |
BufferingMode
|
|
| 5 | provider_specs |
vector<ProviderSpec>[100]
|
Overrides for particular providers. |
ProviderInfo
Defined in fuchsia.tracing.controller/trace_controller.fidl
Result of |GetProviders|.
| Ordinal | Name | Type | Description |
|---|---|---|---|
| 1 | id |
uint32
|
The provider's ID, assigned by trace-manager. |
| 2 | pid |
zx/koid
|
The provider's pid. |
| 3 | name |
string[100]
|
The name of the provider. |
CONSTANTS
| Name | Value | Type | Description |
|---|---|---|---|
| MAX_NUM_PROVIDERS |
100
|
uint32 |
The maximum number of providers supported. |
| MAX_PROVIDER_NAME_LENGTH |
100
|
uint32 |
The maximum length of a provider's name. |
| MAX_NUM_CATEGORIES |
100
|
uint32 |
The maximum number of categories supported. |
| MAX_CATEGORY_NAME_LENGTH |
100
|
uint32 |
The maximum length of a category name. |