msgid "" msgstr "" "Project-Id-Version: Chinese (Simplified Han script) (Boost Beast Translation " "(zh_Hans))\n" "Report-Msgid-Bugs-To: \n" "POT-Creation-Date: 2026-06-07 13:42+0000\n" "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" "Last-Translator: FULL NAME \n" "Language-Team: Chinese (Simplified Han script) \n" "Language: zh_Hans\n" "MIME-Version: 1.0\n" "Content-Type: text/plain; charset=UTF-8\n" "Content-Transfer-Encoding: 8bit\n" "Plural-Forms: nplurals=1; plural=0;\n" "X-Generator: Weblate 2026.5\n" #. type: section title #: 10 #, fuzzy msgid "Writing Composed Operations" msgstr "Writing Composed Operations" #. type: paragraph #: 12 #, fuzzy msgid "" "Asynchronous operations are started by calling a free function or member " "function known as an asynchronous ['__async_initfn__]. This function accepts " "parameters specific to the operation as well as a __CompletionToken__. The " "token is either a completion handler, or a type defining how the caller is " "informed of the asynchronous operation result. Networking provides the " "special tokens __use_future__ and __yield_context__ for using futures and " "coroutines respectively. This system of customizing the return value and " "method of completion notification is known as the ['Universal Asynchronous " "Model] described in __N3747__, and a built in to __NetTS__. Here is an " "example of an initiating function which reads a line from the stream and " "echoes it back. This function is developed further in the next section:" msgstr "" "Asynchronous operations are started by calling a free function or member " "function known as an asynchronous ['__async_initfn__]. This function accepts " "parameters specific to the operation as well as a __CompletionToken__. The " "token is either a completion handler, or a type defining how the caller is " "informed of the asynchronous operation result. Networking provides the " "special tokens __use_future__ and __yield_context__ for using futures and " "coroutines respectively. This system of customizing the return value and " "method of completion notification is known as the ['Universal Asynchronous " "Model] described in __N3747__, and a built in to __NetTS__. Here is an " "example of an initiating function which reads a line from the stream and " "echoes it back. This function is developed further in the next section:" #. type: paragraph #: 28 #, fuzzy msgid "" "This initiating function receives the dynamic buffer by lvalue-reference," msgstr "" "This initiating function receives the dynamic buffer by lvalue-reference," #. type: paragraph #: 33 #, fuzzy msgid "" "Authors using Beast can reuse the library's primitives to create their own " "initiating functions for performing a series of other, intermediate " "asynchronous operations before invoking a final completion handler. The set " "of intermediate actions produced by an initiating function is known as a " "[@http://blog.think-async.com/2009/08/composed-operations-coroutines-and-" "code.html ['composed operation]]. To ensure full interoperability and well-" "defined behavior, __Asio__ imposes requirements on the implementation of " "composed operations. These classes and functions make it easier to develop " "initiating functions and their composed operations:" msgstr "" "Authors using Beast can reuse the library's primitives to create their own " "initiating functions for performing a series of other, intermediate " "asynchronous operations before invoking a final completion handler. The set " "of intermediate actions produced by an initiating function is known as a " "[@http://blog.think-async.com/2009/08/composed-operations-coroutines-and-" "code.html ['composed operation]]. To ensure full interoperability and well-" "defined behavior, __Asio__ imposes requirements on the implementation of " "composed operations. These classes and functions make it easier to develop " "initiating functions and their composed operations:" #. type: table title #: 44 #, fuzzy msgid "Asynchronous Helpers" msgstr "Asynchronous Helpers" #. type: table cell #: 44 #, fuzzy msgid "Name" msgstr "Name" #. type: table cell #: 44 #, fuzzy msgid "Description" msgstr "Description" #. type: table cell #: 44 #, fuzzy msgid "" "[link beast.ref.boost__beast__async_base `async_base`] [link " "beast.ref.boost__beast__stable_async_base `stable_async_base`]" msgstr "" "[link beast.ref.boost__beast__async_base `async_base`] [link " "beast.ref.boost__beast__stable_async_base `stable_async_base`]" #. type: table cell #: 44 #, fuzzy msgid "" "This class is designed to be used as a base class when authoring composed " "asynchronous operations expressed as an intermediate completion handler. " "This eliminates the need for the extensive boilerplate to propagate the " "associated executor and the associated allocator." msgstr "" "This class is designed to be used as a base class when authoring composed " "asynchronous operations expressed as an intermediate completion handler. " "This eliminates the need for the extensive boilerplate to propagate the " "associated executor and the associated allocator." #. type: table cell #: 44 #, fuzzy msgid "[link beast.ref.boost__beast__allocate_stable `allocate_stable`]" msgstr "[link beast.ref.boost__beast__allocate_stable `allocate_stable`]" #. type: table cell #: 44 #, fuzzy msgid "" "For composed operation algorithms which need stable storage for temporary " "objects, this function may be used. Memory for the stable storage is " "allocated using the allocator associated with the final completion handler. " "The implementation automatically destroys the temporary object before the " "final completion handler is invoked, or when the intermediate completion " "handler is destroyed." msgstr "" "For composed operation algorithms which need stable storage for temporary " "objects, this function may be used. Memory for the stable storage is " "allocated using the allocator associated with the final completion handler. " "The implementation automatically destroys the temporary object before the " "final completion handler is invoked, or when the intermediate completion " "handler is destroyed." #. type: table cell #: 44 #, fuzzy msgid "[link beast.ref.boost__beast__bind_handler `bind_handler`]" msgstr "[link beast.ref.boost__beast__bind_handler `bind_handler`]" #. type: table cell #: 44 #, fuzzy msgid "" "This function creates a new handler which, when invoked, calls the original " "handler with the list of bound arguments. Any parameters passed in the " "invocation will be substituted for placeholders present in the list of bound " "arguments. Parameters which are not matched to placeholders are silently " "discarded.\n" "\n" "The passed handler and arguments are forwarded into the returned handler, " "whose associated allocator and associated executor will be the same as those " "of the original handler." msgstr "" "This function creates a new handler which, when invoked, calls the original " "handler with the list of bound arguments. Any parameters passed in the " "invocation will be substituted for placeholders present in the list of bound " "arguments. Parameters which are not matched to placeholders are silently " "discarded.\n" "\n" "The passed handler and arguments are forwarded into the returned handler, " "whose associated allocator and associated executor will be the same as those " "of the original handler." #. type: table cell #: 44 #, fuzzy msgid "[link beast.ref.boost__beast__bind_front_handler `bind_front_handler`]" msgstr "[link beast.ref.boost__beast__bind_front_handler `bind_front_handler`]" #. type: table cell #: 44 #, fuzzy msgid "" "This function creates a new handler which, when invoked, calls the original " "handler with the list of bound arguments, along with the list of invoked " "arguments at either the front or the back of the argument list. Placeholders " "are not supported.\n" "\n" "The passed handler and arguments are forwarded into the returned handler, " "whose associated allocator and associated executor will will be the same as " "those of the original handler." msgstr "" "This function creates a new handler which, when invoked, calls the original " "handler with the list of bound arguments, along with the list of invoked " "arguments at either the front or the back of the argument list. Placeholders " "are not supported.\n" "\n" "The passed handler and arguments are forwarded into the returned handler, " "whose associated allocator and associated executor will will be the same as " "those of the original handler." #. type: table cell #: 44 #, fuzzy msgid "[link beast.ref.boost__beast__saved_handler `saved_handler`]" msgstr "[link beast.ref.boost__beast__saved_handler `saved_handler`]" #. type: table cell #: 44 #, fuzzy msgid "" "This wrapper safely stores a completion handler so it may be invoked later, " "allowing an implementation to \"pause\" an operation until some condition is " "met." msgstr "" "This wrapper safely stores a completion handler so it may be invoked later, " "allowing an implementation to \"pause\" an operation until some condition is " "met."