2019-11-26 17:08:01 +08:00
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## file\_receiver\_t
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### 概述
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2019-12-14 13:25:56 +08:00
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文件接收方。
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> 可用注册EVT_PROGRESS事件，以获取传输的进度状态。
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2019-11-26 17:08:01 +08:00
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----------------------------------
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### 函数
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<p id="file_receiver_t_methods">
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| 函数名称 | 说明 |
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| -------- | ------------ |
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| <a href="#file_receiver_t_file_receiver_create">file\_receiver\_create</a> | 创建receiver对象。 |
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| <a href="#file_receiver_t_file_receiver_destroy">file\_receiver\_destroy</a> | 销毁receiver对象。 |
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| <a href="#file_receiver_t_file_receiver_run">file\_receiver\_run</a> | 开始传输文件。 |
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#### file\_receiver\_create 函数
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-----------------------
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* 函数功能：
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> <p id="file_receiver_t_file_receiver_create">创建receiver对象。
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* 函数原型：
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```
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file_receiver_t* file_receiver_create (uint32_t block_size, const char* productid);
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```
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* 参数说明：
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| 参数 | 类型 | 说明 |
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| -------- | ----- | --------- |
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| 返回值 | file\_receiver\_t* | 返回receiver对象。 |
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| block\_size | uint32\_t | 一次传输块的大小。 |
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| productid | const char* | 产品名称(有时可用于发送方发送不同的固件，暂时没用)。 |
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#### file\_receiver\_destroy 函数
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-----------------------
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* 函数功能：
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> <p id="file_receiver_t_file_receiver_destroy">销毁receiver对象。
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* 函数原型：
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```
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ret_t file_receiver_destroy (file_receiver_t* receiver);
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```
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* 参数说明：
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| 参数 | 类型 | 说明 |
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| -------- | ----- | --------- |
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| 返回值 | ret\_t | 返回RET\_OK表示成功，否则表示失败。 |
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| receiver | file\_receiver\_t* | receiver对象。 |
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#### file\_receiver\_run 函数
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-----------------------
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* 函数功能：
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> <p id="file_receiver_t_file_receiver_run">开始传输文件。
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* 函数原型：
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```
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ret_t file_receiver_run (file_receiver_t* receiver, tk_iostream_t* io, tk_ostream_t* target, const char* filename);
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```
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* 参数说明：
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| 参数 | 类型 | 说明 |
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| -------- | ----- | --------- |
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| 返回值 | ret\_t | 返回RET\_OK表示成功，否则表示失败。 |
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| receiver | file\_receiver\_t* | receiver对象。 |
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| io | tk\_iostream\_t* | 数据传输流。 |
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| target | tk\_ostream\_t* | 用于写入接收到的文件数据。 |
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| filename | const char* | 文件名(期望接收的文件名)。 |
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