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105 lines
6.0 KiB
ReStructuredText
105 lines
6.0 KiB
ReStructuredText
:github_url: hide
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.. _class_StreamPeerGZIP:
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StreamPeerGZIP
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==============
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**實驗性：** This class may be changed or removed in future versions.
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**繼承：** :ref:`StreamPeer<class_StreamPeer>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`
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能夠處理 GZIP 和 deflate 壓縮/解壓縮的流對等體。
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.. rst-class:: classref-introduction-group
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說明
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----
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這個類能夠使用 GZIP/deflate 對資料進行流式壓縮或解壓縮。壓縮或解壓縮經過網路發送的檔時尤其有用，不必事先分配記憶體。
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使用 :ref:`start_compression()<class_StreamPeerGZIP_method_start_compression>`\ （或 :ref:`start_decompression()<class_StreamPeerGZIP_method_start_decompression>`\ ）開啟流之後，在這個流上呼叫 :ref:`StreamPeer.put_partial_data()<class_StreamPeer_method_put_partial_data>` 會對資料進行壓縮（或解壓縮）並寫入內部緩衝區。呼叫 :ref:`StreamPeer.get_available_bytes()<class_StreamPeer_method_get_available_bytes>` 會返回內部緩衝區中待處理的位元組數，\ :ref:`StreamPeer.get_partial_data()<class_StreamPeer_method_get_partial_data>` 會從中獲取壓縮後（或解壓後）的位元組。流結束後，你必須呼叫 :ref:`finish()<class_StreamPeerGZIP_method_finish>` 來確保正確清空內部緩衝區（請務必最後再呼叫一次 :ref:`StreamPeer.get_available_bytes()<class_StreamPeer_method_get_available_bytes>`\ ，檢查此時是否還有需要讀取的資料）。
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.. rst-class:: classref-reftable-group
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方法
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----
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.. table::
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:widths: auto
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+---------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`clear<class_StreamPeerGZIP_method_clear>`\ (\ ) |
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+---------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`Error<enum_@GlobalScope_Error>` | :ref:`finish<class_StreamPeerGZIP_method_finish>`\ (\ ) |
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+---------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`Error<enum_@GlobalScope_Error>` | :ref:`start_compression<class_StreamPeerGZIP_method_start_compression>`\ (\ use_deflate\: :ref:`bool<class_bool>` = false, buffer_size\: :ref:`int<class_int>` = 65535\ ) |
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+---------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`Error<enum_@GlobalScope_Error>` | :ref:`start_decompression<class_StreamPeerGZIP_method_start_decompression>`\ (\ use_deflate\: :ref:`bool<class_bool>` = false, buffer_size\: :ref:`int<class_int>` = 65535\ ) |
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+---------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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方法說明
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--------
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.. _class_StreamPeerGZIP_method_clear:
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.. rst-class:: classref-method
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|void| **clear**\ (\ ) :ref:`🔗<class_StreamPeerGZIP_method_clear>`
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清空該流，重設內部狀態。
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.. rst-class:: classref-item-separator
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----
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.. _class_StreamPeerGZIP_method_finish:
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.. rst-class:: classref-method
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:ref:`Error<enum_@GlobalScope_Error>` **finish**\ (\ ) :ref:`🔗<class_StreamPeerGZIP_method_finish>`
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Finalizes the stream, compressing any buffered chunk left.
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You must call it only when you are compressing.
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.. rst-class:: classref-item-separator
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----
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.. _class_StreamPeerGZIP_method_start_compression:
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.. rst-class:: classref-method
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:ref:`Error<enum_@GlobalScope_Error>` **start_compression**\ (\ use_deflate\: :ref:`bool<class_bool>` = false, buffer_size\: :ref:`int<class_int>` = 65535\ ) :ref:`🔗<class_StreamPeerGZIP_method_start_compression>`
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開始壓縮模式的流，緩衝區大小為 ``buffer_size``\ ，如果 ``use_deflate`` 為 ``true`` 則使用 deflate 而不是 GZIP。
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.. rst-class:: classref-item-separator
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----
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.. _class_StreamPeerGZIP_method_start_decompression:
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.. rst-class:: classref-method
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:ref:`Error<enum_@GlobalScope_Error>` **start_decompression**\ (\ use_deflate\: :ref:`bool<class_bool>` = false, buffer_size\: :ref:`int<class_int>` = 65535\ ) :ref:`🔗<class_StreamPeerGZIP_method_start_decompression>`
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開始解壓模式的流，緩衝區大小為 ``buffer_size``\ ，如果 ``use_deflate`` 為 ``true`` 則使用 deflate 而不是 GZIP。
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.. |virtual| replace:: :abbr:`virtual (本方法通常需要使用者覆寫才能生效。)`
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.. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)`
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.. |const| replace:: :abbr:`const (本方法沒有副作用。不會修改該實例的任何成員變數。)`
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.. |vararg| replace:: :abbr:`vararg (本方法除了這裡描述的參數外，還可以接受任意數量的參數。)`
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.. |constructor| replace:: :abbr:`constructor (本方法用於建構一個型別。)`
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.. |static| replace:: :abbr:`static (本方法無需實例即可呼叫，因此可以直接使用類別名稱呼叫。)`
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.. |operator| replace:: :abbr:`operator (本方法描述將本型別作為左運算元時可用的有效運算子。)`
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.. |bitfield| replace:: :abbr:`BitField (此值是由下列旗標組成的位元遮罩整數。)`
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.. |void| replace:: :abbr:`void (無回傳值。)`
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