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 Bstran
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 admin
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Bstran
Translation changed |
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|
admin
String added in the repository |
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When this function is present:
* The function shall not fail
* A call to [link beast.ref.boost__beast__http__message.payload_size `message::payload_size`] will return the same value as `size`.
* A call to [link beast.ref.boost__beast__http__message.prepare_payload `message::prepare_payload`] will remove "chunked" from the Transfer-Encoding field if it appears as the last encoding, and will set the Content-Length field to the returned value.
Otherwise, when the function is omitted:
* A call to [link beast.ref.boost__beast__http__message.payload_size `message::payload_size`] will return `boost::none`.
* A call to [link beast.ref.boost__beast__http__message.prepare_payload `message::prepare_payload`] will erase the Content-Length field, and add "chunked" as the last encoding in the Transfer-Encoding field if it is not already present.
This static member function is optional. It returns the payload size of `body` in bytes not including any chunked transfer encoding. The return value may be zero, to indicate that the message is known to have no payload. The function shall not exit via an exception.
该静态成员函数为可选。它返回消息体的大小（以字节为单位），不包含任何分块传输编码。返回值可能为零，表示已知消息不包含有效载荷。该函数不应通过异常退出。When this function is present:
* The function shall not fail
* A call to
当该函数存在时：
* 函数不应失败。
* 调用 [link beast.ref.boost__beast__http__message.payload_size `message::payload_size`]
will return the same value as `size`.
将返回与 `size` 相同的值。* A call to
* 调用 [link beast.ref.boost__beast__http__message.prepare_payload `message::prepare_payload`]
will remove "chunked" from the Transfer-Encoding field if it appears as the last encoding, and will set the Content-Length field to the returned value.
将移除 Transfer-Encoding 字段中的 "chunked"（如果它作为最后一个编码出现），并将 Content-Length 字段设置为返回的值。Otherwise, when the function is omitted:
* A call to
否则，当该函数省略时：
* 调用 [link beast.ref.boost__beast__http__message.payload_size `message::payload_size`]
will return将返回 `boost::none`.
。* A call to
* 调用 [link beast.ref.boost__beast__http__message.prepare_payload `message::prepare_payload`]
will erase the将擦除 Content-Lengthfield, and add "chunked" as the last encoding in the Transfer-Encoding field if it is not already present.字段，并在 Transfer-Encoding 字段中添加 "chunked" 作为最后一个编码（如果尚未存在）。