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The interface to this concept is intended to permit the following implementation strategies:
The interface to this concept is intended to permit the following implementation strategies:该概念的接口旨在支持以下实现策略：
06/18/2026
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A dynamic buffer encapsulates memory storage that may be automatically resized as required, where the memory is divided into an input sequence followed by an output sequence. These memory regions are internal to the dynamic buffer, but direct access to the elements is provided to permit them to be efficiently used with I/O operations, such as the send or receive operations of a socket. Data written to the output sequence of a dynamic buffer object is appended to the input sequence of the same object.
A dynamic buffer encapsulates memory storage that may be automatically resized as required, where the memory is divided into an input sequence followed by an output sequence. These memory regions are internal to the dynamic buffer, but direct access to the elements is provided to permit them to be efficiently used with I/O operations, such as the send or receive operations of a socket. Data written to the output sequence of a dynamic buffer object is appended to the input sequence of the same object.动态缓冲区用于封装可根据需要自动调整大小的内存存储。该内存被划分为一个输入序列和一个输出序列。这些内存区域属于动态缓冲区的内部，但提供对元素的直接访问，以便将其高效用于 I/O 操作，例如套接字的发送或接收操作。写入动态缓冲区对象输出序列的数据，将被追加到该对象的输入序列中。
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DynamicBuffer
DynamicBuffer动态缓冲区
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Contributor joined 06/18/2026
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Translation completed
Translation completed 06/18/2026
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* [link beast.ref.boost__beast__async_write `async_write`]
* [link beast.ref.boost__beast__write `write`]
* [link beast.ref.boost__beast__async_write `async_write`]
* [link beast.ref.boost__beast__write `write`]
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Algorithms
Algorithms算法
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* [link beast.ref.boost__beast__http__message_generator `http::message_generator`]
* [link beast.ref.boost__beast__http__message_generator `http::message_generator`]
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Models
Models模型
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```
```
135
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```
```
122
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Exemplar
Exemplar示例
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An alias for `std::true_type` for `G`, otherwise an alias for `std::false_type`.
An alias for `std::true_type` for `G`, otherwise an alias for `如果 G 满足条件，则为 std::true_type 的别名，否则为 std::false_type`. 的别名。
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`std::bool_constant`
`std::bool_constant`
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`is_buffers_generator<G>`
`is_buffers_generator<G>`
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This function is called to signal that the consumer (caller) of the generator has processed part of the data returned by the previous call to `prepare`.

The value of `n` indicates how much of the data processed (in bytes).

When `n` exceeds the number of bytes returned from the last call to `prepare`, `consume` shall behave as if `n` was equal to that number.

Remaining unconsumed data will be returned from subsequent calls to `prepare`.

[*Note:] Any buffers obtained by previous calls to `prepare` are invalidated.
This function is called to signal that the consumer (caller) of the generator has processed part of the data returned by the previous call to `prepare`.

The value of `n` indicates how much of the data processed (in bytes).

When `n` exceeds the number of bytes returned from the last call to `prepare`, `consume` shall behave as if `n` was equal to that number.

Remaining unconsumed data will be returned from subsequent calls to `prepare`.

[*Note:] Any buffers obtained by previous calls to `prepare` are invalidated.调用此函数以向生成器发出信号，表明生成器的消费者（调用者）已处理了上一次调用‘prepare’所返回的部分数据。

n 的值表示已处理的数据量（以字节为单位）。

当 n 超过上一次调用‘prepare’返回的字节数时，‘consume’ 的行为应如同 n 等于该字节数一样。

剩余的未消费数据将在后续调用‘prepare’时返回。

[*注意：] 此前调用‘prepare’所获得的任何缓冲区均会失效。
06/18/2026
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`g.consume(n)`
`g.consume(n)`
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Called to ask the generator to produce buffers containing data for processing.

The returned value is the __ConstBufferSequence__ representing unconsumed data.

The function will ensure that `ec.failed()` is `false` if there was no error or set to the appropriate error code if there was one.

If no unconsumed data is available, this operation shall make progress to eventually reach completion.

The result of invoking `prepare` after completion or encountered error(s) is defined by the generator implementation. It can not be assumed to be meaningful or safe to do so, in general.

The capacity of the buffer returned is defined by the generator implementation.

[*Note:] Any buffers obtained by previous calls to `prepare` are invalidated.
Called to ask the generator to produce buffers containing data for processing.

The returned value is the __ConstBufferSequence__ representing unconsumed data.

The function will ensure that `ec.failed()` is `false` if there was no error or set to the appropriate error code if there was one.

If no unconsumed data is available, this operation shall make progress to eventually reach completion.

The result of invoking `prepare` after completion or encountered error(s) is defined by the generator implementation. It can not be assumed to be meaningful or safe to do so, in general.

The capacity of the buffer returned is defined by the generator implementation.

[*Note:] Any buffers obtained by previous calls to `prepare` are invalidated.调用此函数以请求生成器生成包含待处理数据的缓冲区。

返回值为代表未消费数据的 ConstBufferSequence。

如果未发生错误，该函数将确保 ec.failed() 为 false；如果发生了错误，则将其设置为相应的错误码。

如果没有可用的未消费数据，此操作应取得进展，以最终达到完成状态。

在完成或遇到错误后调用‘prepare’的结果由生成器实现定义。通常情况下，不能假定这种调用具有意义或是安全的。

返回缓冲区的容量由生成器实现定义。

[*注意：] 此前调用‘prepare’所获得的任何缓冲区均会失效。
06/18/2026
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Called to ask the generator for its completion status.

A generator has completed when no new buffer will be produced and previously produced buffers have been fully consumed.

[*Note:] The result of invoking `prepare` on `g` once it has completed is unspecified.
用于查询该生成器的调用此函数以向生成器（generator）查询其完成状态。

当该生成器不再产生新的缓冲区，且先前之前已产生的缓冲区已被完全调用时，该消费时，即表示生成器即为已完成。

[重要提示：] 一旦该生成器已完成，再*注意：] 在生成器 g 完成后，对其调用 `prepare` 的结果是未定义的（unspecified）。
06/18/2026
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Translation changed
`g.prepare(ec)`
`g.prepare(ec)`
06/18/2026

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