update docs

Signed-off-by: N shawn_he <shawn.he@huawei.com>

update docs
Signed-off-by: N shawn_he <shawn.he@huawei.com>
bdc71490 · shawn_he · 3dc8c69b · bdc71490 · bdc71490 · bdc71490
4 changed file
--- a/en/application-dev/reference/apis/Readme-EN.md
+++ b/en/application-dev/reference/apis/Readme-EN.md
@@ -5,7 +5,6 @@
    -   [ParticleAbility Module](js-apis-particleAbility.md)
    -   [DataAbilityHelper Module](js-apis-dataAbilityHelper.md)
    -   [DataUriUtils Module](js-apis-DataUriUtils.md)
-    -   [Bundle Module](js-apis-Bundle.md)
    -   [Context Module](js-apis-Context.md)
 - Event Notification
    -   [CommonEvent Module](js-apis-commonEvent.md)
@@ -21,16 +20,14 @@
 -   Security
    - [User Authentication](js-apis-useriam-userauth.md)
 -   Data Management
+    -   [File Management](js-apis-fileio.md)
    -   [Lightweight Storage](js-apis-data-storage.md)
    -   [Distributed Data Management](js-apis-distributed-data.md)
    -   [Relational Database](js-apis-data-rdb.md)
    -   [Result Set](js-apis-data-resultset.md)
    -   [DataAbilityPredicates](js-apis-data-ability.md)
-   File Management
-    -   [File Management](js-apis-fileio.md)
 -   Account Management
    -   [Distributed Account Management](js-apis-distributed-account.md)
-    -   [Application Account Management](js-apis-appAccount.md)
 -   Telephony Service
    -   [Call](js-apis-call.md)
    -   [SMS](js-apis-sms.md)
@@ -38,7 +35,6 @@
    -   [Radio](js-apis-radio.md)
 -   Network and Connectivity
    -   [WLAN](js-apis-wifi.md)  
-    -   [Bluetooth](js-apis-bluetooth.md)
 -   Device Management
    -   [Sensors](js-apis-sensor.md)
    -   [Vibration](js-apis-vibrator.md)
@@ -63,10 +59,10 @@
    -   [Setting the System Time](js-apis-system-time.md)
    -   [Animation](js-apis-basic-features-animator.md)
    -   [HiAppEvent](js-apis-hiappevent.md)
-    -   [Performance Tracing](js-apis-bytrace.md)
+    -   [Performance Tracing](js-apis-hitracemeter.md)
    -   [Fault Logger](js-apis-faultLogger.md)
-    -   [WebGL](js-apis-webgl.md)
-    -   [WebGL2](js-apis-webgl2.md)
+    -   [Distributed Call Chain Tracing](js-apis-hitracechain.md)
+    -   [HiLog](js-apis-hilog.md)
 -   Language Base Class Library
    -   [Obtaining Process Information](js-apis-process.md)
    -   [URL String Parsing](js-apis-url.md)

--- a/en/application-dev/reference/apis/js-apis-bytrace.md
+++ b/en/application-dev/reference/apis/js-apis-bytrace.md
 # Performance Tracing<a name="EN-US_TOPIC_0000001165886716"></a>

 >![](../../public_sys-resources/icon-note.gif) **NOTE:** 
->The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
+> - The APIs of this module are no longer maintained since API version 8. It is recommended that you use the APIs of [hiTraceMeter](js-apis-hitracemeter.md) instead.  
+> - The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.

 ## Modules to Import<a name="s56d19203690d4782bfc74069abb6bd71"></a>

@@ -9,9 +10,9 @@
 import bytrace from '@ohos.bytrace';
 ```

-## System Capabilities
+## Required Permissions<a name="section11257113618419"></a>

-SystemCapability.Developtools.Bytrace
+None

 ## bytrace.startTrace<a name="section785191510485"></a>

@@ -194,5 +195,3 @@ Traces the value changes of a variable.
    traceCount = 5;
    bytrace.traceByValue("myTestCount", traceCount);
    ```
-
-
--- a/en/application-dev/reference/apis/js-apis-hitracechain.md
+++ b/en/application-dev/reference/apis/js-apis-hitracechain.md
+# Distributed Call Chain Tracing
+
+> ![icon-note.gif](public_sys-resources/icon-note.gif) **Note:**
+> The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
+
+## Modules to Import
+
+```
+import hiTraceChain from '@ohos.hiTraceChain';
+```
+
+## System Capabilities
+
+SystemCapability.HiviewDFX.HiTrace
+
+## HiTraceFlag
+
+Enumerates trace flag types.
+
+| Name| Default Value| Description|
+| -------- | -------- | -------- |
+| DEFAULT           | 0      | Default flag|
+| INCLUDE_ASYNC     | 1      | Asynchronous call flag|
+| DONOT_CREATE_SPAN | 1 << 1 | No span flag|
+| TP_INFO           | 1 << 2 | Trace point flag|
+| NO_BE_INFO        | 1 << 3 | No begin/end flag|
+| DISABLE_LOG       | 1 << 4 | Log association flag|
+| FAILURE_TRIGGER   | 1 << 5 | Failure trigger flag|
+| D2D_TP_INFO       | 1 << 6 | Device-to-device trace point flag|
+
+## HiTraceTracepointType
+
+Enumerates trace point types.
+
+| Name| Default Value| Description|
+| -------- | -------- | -------- |
+| CS       | 0 | Client Send|
+| CR       | 1 | Client Receive|
+| SS       | 2 | Server Send|
+| SR       | 3 | Server Receive|
+| GENERAL  | 4 | General|
+
+## HiTraceCommunicationMode
+
+Enumerates communication modes.
+
+| Name| Default Value| Description|
+| -------- | -------- | -------- |
+| DEFAULT  | 0 | Default mode|
+| THREAD   | 1 | Inter-thread communication|
+| PROCESS  | 2 | Inter-process communication|
+| DEVICE   | 3 | Inter-device communication|
+
+## HiTraceId
+
+Defines a **HiTraceId** object.
+
+| Name| Type| Mandatory| Description|
+| -------- | -------- | -------- | -------- |
+| chainId      | bigint | Yes| Call chain ID.|
+| spandId      | number | No| Span ID.|
+| parentSpanId | number | No| Parent span ID.|
+| flags        | number | No| Trace flag combination.|
+
+## hiTraceChain.begin
+
+begin(name: string, flags: number = HiTraceFlag.DEFAULT): HiTraceId
+
+Starts call chain tracing. This API works in synchronous manner.
+
+- Parameters
+  | Name| Type| Mandatory| Description|
+  | -------- | -------- | -------- | -------- |
+  | name  | string | Yes| Traced service name.|
+  | flags | number | Yes| [Trace flag combination](#hitraceflag).|
+- Return value
+  | Type| Description|
+  | -------- | -------- |
+  | [HiTraceId](#hitraceid) | **HiTraceId** instance.|
+
+- Example
+  ```
+  let asyncTraceId = hiTraceChain.begin("business", hiTraceChain.HiTraceFlag.INCLUDE_ASYNC | hiTraceChain.HiTraceFlag.DONOT_CREATE_SPAN);
+  ```
+
+## hiTraceChain.end
+
+end(id: HiTraceId): void
+
+Stops call chain tracing. This API works in synchronous manner.
+
+- Parameters
+  | Name| Type| Mandatory| Description|
+  | -------- | -------- | -------- | -------- |
+  | id | [HiTraceId](#hitraceid) | Yes| **HiTraceId** instance.|
+
+- Example
+  ```
+  let asyncTraceId = hiTraceChain.begin("business");
+  // End the call chain tracing after the service logic is executed for several times.
+  hiTraceChain.end(asyncTraceId);
+  ```
+
+## hiTraceChain.getId
+
+getId(): HiTraceId
+
+Obtains the trace ID. This API works in synchronous manner.
+
+- Return value
+  | Type| Description|
+  | -------- | -------- |
+  | [HiTraceId](#hitraceid) | **HiTraceId** instance.|
+
+- Example
+  ```
+  let traceId = hiTraceChain.begin("business");
+  // Obtain the current trace ID after the service logic is executed for several times.
+  let curTraceId = hiTraceChain.getId();
+  ```
+
+## hiTraceChain.setId
+
+setId(id: HiTraceId): void
+
+Sets a trace ID. This API works in synchronous manner.
+
+- Parameters
+  | Name| Type| Mandatory| Description|
+  | -------- | -------- | -------- | -------- |
+  | id | [HiTraceId](#hitraceid) | Yes| **HiTraceId** instance.|
+
+- Example
+  ```
+  let traceId = hiTraceChain.begin("business");
+  // Set the current trace ID after the service logic is executed for several times.
+  hiTraceChain.setId(asyncTraceId);
+  ```
+
+## hiTraceChain.clearId
+
+clearId(): void
+
+Clears the trace ID. This API works in synchronous manner.
+
+- Example
+  ```
+  let traceId = hiTraceChain.begin("business");
+  // Clear the current trace ID after the service logic is executed for several times.
+  hiTraceChain.clearId();
+  ```
+
+## hiTraceChain.createSpan
+
+createSpan(): HiTraceId
+
+Creates a trace span. This API works in synchronous manner.
+
+- Return value
+  | Type| Description|
+  | -------- | -------- |
+  | [HiTraceId](#hitraceid) | **HiTraceId** instance.|
+
+- Example
+  ```
+  let traceId = hiTraceChain.begin("business");
+  // Create a trace span after the service logic is executed for several times.
+  let spanTraceId = hiTraceChain.createSpan();
+  ```
+
+## hiTraceChain.tracepoint
+
+tracepoint(mode: HiTraceCommunicationMode, type: HiTraceTracepointType, id: HiTraceId, msg?: string): void
+
+Triggers a trace point. This API works in synchronous manner.
+
+- Parameters
+  | Name| Type| Mandatory| Description|
+  | -------- | -------- | -------- | -------- |
+  | mode | [HiTraceCommunicationMode](#hitracecommunicationmode) | Yes| Communication mode for the trace point.|
+  | type | [HiTraceTracepointType](#hitracetracepointtype)| Yes| Trace point type.|
+  | id   | [HiTraceId](#hitraceid) | Yes| **HiTraceId** instance for trace point triggering.|
+  | msg  | string | No| Trace description passed for trace point triggering.|
+
+- Example
+  ```
+  let asyncTraceId = hiTraceChain.begin("business", hiTraceChain.HiTraceFlag.INCLUDE_ASYNC | hiTraceChain.HiTraceFlag.DONOT_CREATE_SPAN);
+  // Trigger the trace point after the service logic is executed for several times.
+  hiTraceChain.tracepoint(hiTraceChain.HiTraceCommunicationMode.THREAD, hiTraceChain.HiTraceTracepointType.SS, asyncTraceId, "Just a example");
+  ```
+
+## hiTraceChain.isValid
+
+isValid(id: HiTraceId): boolean
+
+Checks whether a **HiTraceId** instance is valid. This API works in synchronous manner.
+
+- Parameters
+  | Name| Type| Mandatory| Description|
+  | -------- | -------- | -------- | -------- |
+  | id  | [HiTraceId](#hitraceid) | Yes| **HiTraceId** instance.|
+- Return value
+  | Type| Description|
+  | -------- | -------- |
+  | boolean | Returns **true** if the **HiTraceId** instance is valid; returns **false** otherwise.|
+
+- Example
+  ```
+  let traceId = hiTraceChain.begin("business");
+  let traceIdIsvalid = hiTraceChain.isValid(traceId);
+  ```
+
+## hiTraceChain.isFlagEnabled
+
+isFlagEnabled(id: HiTraceId, flag: HiTraceFlag): boolean
+
+Checks whether the specified trace flag in the **HiTraceId** instance is enabled. This API works in synchronous manner.
+
+- Parameters
+  | Name| Type| Mandatory| Description|
+  | -------- | -------- | -------- | -------- |
+  | id  | [HiTraceId](#hitraceid) | Yes| **HiTraceId** instance.|
+  | flag | [HiTraceFlag](#hitraceflag) | Yes| Specified trace flag.|
+- Return value
+  | Type| Description|
+  | -------- | -------- |
+  | boolean | Returns **true** if the specified trace flag in the **HiTraceId** instance is enabled; returns **false** otherwise.|
+- Example
+  ```
+  let asyncTraceId = hiTraceChain.begin("business", hiTraceChain.HiTraceFlag.INCLUDE_ASYNC);
+  // The value of enabledDoNotCreateSpanFlag is true.
+  let enabledDoNotCreateSpanFlag = hiTraceChain.isFlagEnabled(asyncTraceId, hiTraceChain.HiTraceFlag.INCLUDE_ASYNC);
+  ```
+
+## hiTraceChain.enableFlag
+
+enableFlag(id: HiTraceId, flag: HiTraceFlag): void
+
+Enables the specified trace flag in the **HiTraceId** instance. This API works in synchronous manner.
+
+- Parameters
+  | Name| Type| Mandatory| Description|
+  | -------- | -------- | -------- | -------- |
+  | id  | [HiTraceId](#hitraceid) | Yes| **HiTraceId** instance.|
+  | flag | [HiTraceFlag](#hitraceflag) | Yes| Specified trace flag.|
+
+- Example
+  ```
+  let asyncTraceId = hiTraceChain.begin("business", hiTraceChain.HiTraceFlag.INCLUDE_ASYNC);
+  hiTraceChain.enable(asyncTraceId, hiTraceChain.HiTraceFlag.DONOT_CREATE_SPAN);
+  // The value of enabledDoNotCreateSpanFlag is true.
+  let enabledDoNotCreateSpanFlag = hiTraceChain.isFlagEnabled(asyncTraceId, hiTraceChain.HiTraceFlag.DONOT_CREATE_SPAN);
+  ```
--- a/en/application-dev/reference/apis/js-apis-hitracemeter.md
+++ b/en/application-dev/reference/apis/js-apis-hitracemeter.md
+# Performance Tracing
+
+> ![icon-note.gif](public_sys-resources/icon-note.gif) **Note:**
+> The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
+
+
+## Modules to Import
+
+```
+import hiTraceMeter from '@ohos.hiTraceMeter';
+```
+
+
+## System Capabilities
+
+SystemCapability.HiviewDFX.HiTrace
+
+
+## hiTraceMeter.startTrace
+
+startTrace(name: string, taskId: number, expectedTime?: number): void
+
+Starts a trace task. **expectedTime** is an optional parameter, which specifies the expected duration of the trace.
+
+
+- Parameters
+  | Name| Type| Mandatory| Description|
+  | -------- | -------- | -------- | -------- |
+  | name | string | Yes| Name of the trace task to start.|
+  | taskId | number | Yes| Task ID.|
+  | expectedTime | number | No| Expected duration of the trace, in ms.|
+
+  > ![icon-note.gif](public_sys-resources/icon-note.gif) **Note:**
+  > If multiple trace tasks with the same name need to be performed at the same time or a trace task needs to be performed multiple times concurrently, different task IDs must be specified in **startTrace**. If the trace tasks with the same name are not performed at the same time, the same task ID can be used. For details, see the **hiTraceMeter.finishTrace** example.
+
+- Example
+  ```
+  hiTraceMeter.startTrace("myTestFunc", 1);
+  hiTraceMeter.startTrace("myTestFunc", 1, 5); // The expected duration of the trace task is 5 ms.
+  ```
+
+
+## hiTraceMeter.finishTrace
+
+finishTrace(name: string, taskId: number): void
+
+Stops a trace task.
+
+
+- Parameters
+  | Name| Type| Mandatory| Description|
+  | -------- | -------- | -------- | -------- |
+  | name | string | Yes| Name of the trace task to start.|
+  | taskId | number | Yes| Task ID.|
+
+  > ![icon-note.gif](public_sys-resources/icon-note.gif) **Note:**
+  > To stop a trace task, the values of name and task ID in **finishTrace** must be the same as those in **startTrace**.
+
+- Example
+  ```
+  hiTraceMeter.finishTrace("myTestFunc", 1);
+  ```
+
+  ```
+  // Start track tasks with the same name concurrently.
+  hiTraceMeter.startTrace("myTestFunc", 1);
+  // Service flow
+  hiTraceMeter.startTrace("myTestFunc", 2);  // The second trace task starts while the first task is still running. The first and second tasks have the same name but different task IDs.
+  // Service flow
+  hiTraceMeter.finishTrace("myTestFunc", 1);
+  // Service flow
+  hiTraceMeter.finishTrace("myTestFunc", 2);
+  ```
+
+  ```
+  // Start track tasks with the same name at different times.
+  hiTraceMeter.startTrace("myTestFunc", 1);
+  // Service flow
+  hiTraceMeter.finishTrace("myTestFunc", 1);  // The first trace task ends.
+  // Service flow
+  hiTraceMeter.startTrace("myTestFunc", 1);   // The second trace task starts after the first task ends. The two tasks have the same name and task ID. 
+  // Service flow
+  hiTraceMeter.finishTrace("myTestFunc", 1);
+  ```
+
+
+## hiTraceMeter.traceByValue
+
+traceByValue(name: string, value: number): void
+
+Traces the value changes of a variable.
+
+
+- Parameters
+  | Name| Type| Mandatory| Description|
+  | -------- | -------- | -------- | -------- |
+  | name | string | Yes| Name of the variable.|
+  | value | number | Yes| Value of the variable.|
+
+- Example
+  ```
+  let traceCount = 3;
+  hiTraceMeter.traceByValue("myTestCount", traceCount);
+  traceCount = 4;
+  hiTraceMeter.traceByValue("myTestCount", traceCount);
+  // Service flow
+  ```