- Discovering local services and listening to the status changes of local services of the specified type through the **DiscoveryService** object.
> **NOTE**
>
> To maximize the application running efficiency, most API calls are called asynchronously in callback or promise mode. The following code examples use the callback mode. For details about the APIs, see [mDNS Management](../reference/apis/js-apis-net-mdns.md).
The following describes the development procedure specific to each application scenario.
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@@ -28,9 +29,13 @@ For the complete list of APIs and example code, see [mDNS Management](../referen
| ohos.net.mdns.DiscoveryService | startSearchingMDNS(): void | Searches for mDNS services on the LAN.|
| ohos.net.mdns.DiscoveryService | stopSearchingMDNS(): void | Stops searching for mDNS services on the LAN.|
@@ -484,3 +484,8 @@ The development process of the Neural Network Runtime consists of three phases:
rm /data/local/tmp/*nncache
```
## Samples
The following sample is provided to help you understand how to connect a third-party AI inference framework to the Neural Network Runtime:
-[Development Guide for Connecting TensorFlow Lite to NNRt Delegate](https://gitee.com/openharmony/ai_neural_network_runtime/tree/master/example/deep_learning_framework)
MindSpore Lite is an AI engine that implements AI model inference for different hardware devices. It has been used in a wide range of fields, such as image classification, target recognition, facial recognition, and character recognition.
The **mindSporeLite** module provides APIs for the MindSpore Lite inference engine to implment model inference.
The **mindSporeLite** module provides APIs for the MindSpore Lite inference engine to implement model inference.
> **NOTE**
>
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@@ -48,7 +48,7 @@ Defines the CPU backend device option.
| threadNum | number | Yes | Yes | Number of runtime threads. The default value is **2**. |
| threadAffinityMode | [ThreadAffinityMode](#threadaffinitymode) | Yes | Yes | Affinity mode for binding runtime threads to CPU cores. The default value is **mindSporeLite.ThreadAffinityMode.NO_AFFINITIES**.|
| threadAffinityCoreList | number[] | Yes | Yes | List of CPU cores bound to runtime threads. Set this parameter only when **threadAffinityMode** is set. If **threadAffinityMode** is set to **mindSporeLite.ThreadAffinityMode.NO_AFFINITIES**, this parameter is empty. The number in the list indicates the SN of the CPU core. The default value is **[]**.|
| precisionMode | string | Yes | Yes | Whether to enable the Float16 inference mode. The value **preferred_fp16** means to enable half-precision inference and the default value **force_fp32** means to disable half-precision inference. Other settings are not supported.|
| precisionMode | string | Yes | Yes | Whether to enable the Float16 inference mode. The value **preferred_fp16** means to enable half-precision inference and the default value **enforce_fp32** means to disable half-precision inference. Other settings are not supported.|
**Float16 inference mode**: a mode that uses half-precision inference. Float16 uses 16 bits to represent a number and therefore it is also called half-precision.
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@@ -125,7 +125,7 @@ Loads the input model from the full path for model inference. This API uses an a
Executes the inference model. This API uses an asynchronous callback to return the result.
Executes the inference model. This API uses an asynchronous callback to return the result. Ensure that the model object is not reclaimed when being invoked.
| type | string | Yes |Event type. This field has a fixed value of **discoveryStart**.<br>**discoveryStart**: event of starting discovery of mDNS services on the LAN.|
| callback | Callback<{serviceInfo:[LocalServiceInfo](#localserviceinfo),errorCode?:[MdnsError](#mdnserror)}> | Yes | Callback used to return the mDNS service and error information. |
| type | string | Yes |Event type. This field has a fixed value of **discoveryStop**.<br>**discoveryStop**: event of stopping discovery of mDNS services on the LAN.|
| callback | Callback<{serviceInfo:[LocalServiceInfo](#localserviceinfo),errorCode?:[MdnsError](#mdnserror)}> | Yes | Callback used to return the mDNS service and error information. |
Binds the IP address and port number. The port number can be specified or randomly allocated by the system. The server listens to and accepts TCP socket connections established over the socket. Multiple threads are used to process client data concurrently. This API uses an asynchronous callback to return the result.
> **NOTE**
> **NOTE**<br>
> The server uses this API to perform the **bind**, **listen**, and **accept** operations. If the **bind** operation fails, the system randomly allocates a port number.
Binds the IP address and port number. The port number can be specified or randomly allocated by the system. The server listens to and accepts TCP socket connections established over the socket. Multiple threads are used to process client data concurrently. This API uses a promise to return the result.
> **NOTE**
> **NOTE**<br>
> The server uses this API to perform the **bind**, **listen**, and **accept** operations. If the **bind** operation fails, the system randomly allocates a port number.
Requests the temporary permission for the application to access a USB device. This API uses a promise to return the result.
Requests the temporary permission for the application to access a USB device. This API uses a promise to return the result. By default, system applications are granted the device access permission.
Requests the temporary permission for the application to access a USB device. This API uses a promise to return the result.
Requests the temporary device access permission for the application. This API uses a promise to return the result. System applications are granted the device access permission by default, and you do not need to apply for the permission separately.
Removes the permission for the application to access a USB device.
Removes the device access permission for the application. System applications are granted the device access permission by default, and calling this API will not revoke the permission.
Adds the permission for the application to access a USB device.
Adds the device access permission for the application. System applications are granted the device access permission by default, and calling this API will not revoke the permission.
[requestRight](#usbrequestright) triggers a dialog box to request for user authorization, whereas **addRight** adds the access permission directly without displaying a dialog box.