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# SOME DESCRIPTIVE TITLE.
# Copyright (C) 2001-2022, Python Software Foundation
# This file is distributed under the same license as the Python package.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
# Translators:
# Rafael Fontenelle <rffontenelle@gmail.com>, 2022
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: Python 3.10\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2022-12-30 14:59+0000\n"
"PO-Revision-Date: 2022-11-05 17:21+0000\n"
"Last-Translator: Rafael Fontenelle <rffontenelle@gmail.com>, 2022\n"
"Language-Team: Japanese (https://www.transifex.com/python-doc/teams/5390/"
"ja/)\n"
"Language: ja\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"
#: ../../c-api/memory.rst:8
msgid "Memory Management"
msgstr "メモリ管理"
#: ../../c-api/memory.rst:17
msgid "Overview"
msgstr "概要"
#: ../../c-api/memory.rst:19
msgid ""
"Memory management in Python involves a private heap containing all Python "
"objects and data structures. The management of this private heap is ensured "
"internally by the *Python memory manager*. The Python memory manager has "
"different components which deal with various dynamic storage management "
"aspects, like sharing, segmentation, preallocation or caching."
msgstr ""
"Python におけるメモリ管理には、全ての Python オブジェクトとデータ構造が入った"
"プライベートヒープ (private heap) が必須です。プライベートヒープの管理は、内"
"部的には *Python メモリマネージャ (Python memory manager)* が確実に行います。"
"Python メモリマネージャには、共有 (sharing)、セグメント分割 (segmentation)、"
"事前割り当て (preallocation)、キャッシュ化 (caching) といった、様々な動的記憶"
"管理の側面を扱うために、個別のコンポーネントがあります。"
#: ../../c-api/memory.rst:25
msgid ""
"At the lowest level, a raw memory allocator ensures that there is enough "
"room in the private heap for storing all Python-related data by interacting "
"with the memory manager of the operating system. On top of the raw memory "
"allocator, several object-specific allocators operate on the same heap and "
"implement distinct memory management policies adapted to the peculiarities "
"of every object type. For example, integer objects are managed differently "
"within the heap than strings, tuples or dictionaries because integers imply "
"different storage requirements and speed/space tradeoffs. The Python memory "
"manager thus delegates some of the work to the object-specific allocators, "
"but ensures that the latter operate within the bounds of the private heap."
msgstr ""
"最低水準層では、素のメモリ操作関数 (raw memory allocator) がオペレーティング"
"システムのメモリ管理機構とやりとりして、プライベートヒープ内にPython 関連の全"
"てのデータを記憶するのに十分な空きがあるかどうか確認します。素のメモリ操作関"
"数の上には、いくつかのオブジェクト固有のメモリ操作関数があります。これらは同"
"じヒープを操作し、各オブジェクト型固有の事情に合ったメモリ管理ポリシを実装し"
"ています。例えば、整数オブジェクトは文字列やタプル、辞書とは違ったやり方で"
"ヒープ内で管理されます。というのも、整数には値を記憶する上で特別な要件があ"
"り、速度/容量のトレードオフが存在するからです。このように、Python メモリマネ"
"ジャは作業のいくつかをオブジェクト固有のメモリ操作関数に委譲しますが、これら"
"の関数がプライベートヒープからはみ出してメモリ管理を行わないようにしていま"
"す。"
#: ../../c-api/memory.rst:36
msgid ""
"It is important to understand that the management of the Python heap is "
"performed by the interpreter itself and that the user has no control over "
"it, even if they regularly manipulate object pointers to memory blocks "
"inside that heap. The allocation of heap space for Python objects and other "
"internal buffers is performed on demand by the Python memory manager through "
"the Python/C API functions listed in this document."
msgstr ""
"重要なのは、たとえユーザがいつもヒープ内のメモリブロックを指すようなオブジェ"
"クトポインタを操作しているとしても、Python 用ヒープの管理はインタプリタ自体が"
"行うもので、ユーザがそれを制御する余地はないと理解することです。Python オブ"
"ジェクトや内部使用されるバッファを入れるためのヒープ空間のメモリ確保は、必要"
"に応じて、Python メモリマネージャがこのドキュメント内で列挙しているPython/C "
"API 関数群を介して行います。"
#: ../../c-api/memory.rst:49
msgid ""
"To avoid memory corruption, extension writers should never try to operate on "
"Python objects with the functions exported by the C library: :c:func:"
"`malloc`, :c:func:`calloc`, :c:func:`realloc` and :c:func:`free`. This will "
"result in mixed calls between the C allocator and the Python memory manager "
"with fatal consequences, because they implement different algorithms and "
"operate on different heaps. However, one may safely allocate and release "
"memory blocks with the C library allocator for individual purposes, as shown "
"in the following example::"
msgstr ""
"メモリ管理の崩壊を避けるため、拡張モジュールの作者は決して Python オブジェク"
"トを C ライブラリが公開している関数: :c:func:`malloc` 、 :c:func:"
"`calloc` 、 :c:func:`realloc` および :c:func:`free` で操作しようとしてはなり"
"ません。こうした関数を使うと、C のメモリ操作関数と Python メモリマネージャと"
"の間で関数呼び出しが交錯します。 C のメモリ操作関数とPython メモリマネージャ"
"は異なるアルゴリズムで実装されていて、異なるヒープを操作するため、呼び出しの"
"交錯は致命的な結果を招きます。とはいえ、個別の目的のためなら、 C ライブラリの"
"メモリ操作関数を使って安全にメモリを確保したり解放したりできます。例えば、以"
"下がそのような例です::"
#: ../../c-api/memory.rst:68
msgid ""
"In this example, the memory request for the I/O buffer is handled by the C "
"library allocator. The Python memory manager is involved only in the "
"allocation of the bytes object returned as a result."
msgstr ""
"この例では、I/O バッファに対するメモリ要求は C ライブラリのメモリ操作関数を"
"使っています。Python メモリマネージャーは戻り値として返される bytes オブジェ"
"クトを確保する時にだけ必要です。"
#: ../../c-api/memory.rst:72
msgid ""
"In most situations, however, it is recommended to allocate memory from the "
"Python heap specifically because the latter is under control of the Python "
"memory manager. For example, this is required when the interpreter is "
"extended with new object types written in C. Another reason for using the "
"Python heap is the desire to *inform* the Python memory manager about the "
"memory needs of the extension module. Even when the requested memory is used "
"exclusively for internal, highly specific purposes, delegating all memory "
"requests to the Python memory manager causes the interpreter to have a more "
"accurate image of its memory footprint as a whole. Consequently, under "
"certain circumstances, the Python memory manager may or may not trigger "
"appropriate actions, like garbage collection, memory compaction or other "
"preventive procedures. Note that by using the C library allocator as shown "
"in the previous example, the allocated memory for the I/O buffer escapes "
"completely the Python memory manager."
msgstr ""
"とはいえ、ほとんどの状況では、メモリの操作は Python ヒープに固定して行うよう"
"勧めます。なぜなら、Python ヒープは Python メモリマネジャの管理下にあるからで"
"す。例えば、インタプリタを C で書かれた新たなオブジェクト型で拡張する際には、"
"ヒープでのメモリ管理が必要です。Python ヒープを使った方がよいもう一つの理由と"
"して、拡張モジュールが必要としているメモリについて Python メモリマネージャに "
"*情報を提供* してほしいということがあります。たとえ必要なメモリが内部的かつ非"
"常に特化した用途に対して排他的に用いられるものだとしても、全てのメモリ操作要"
"求を Python メモリマネージャに委譲すれば、インタプリタはより正確なメモリフッ"
"トプリントの全体像を把握できます。その結果、特定の状況では、Python メモリマ"
"ネージャがガベージコレクションやメモリのコンパクト化、その他何らかの予防措置"
"といった、適切な動作をトリガできることがあります。上の例で示したように C ライ"
"ブラリのメモリ操作関数を使うと、I/O バッファ用に確保したメモリは Python メモ"
"リマネージャの管理から完全に外れることに注意してください。"
#: ../../c-api/memory.rst:88
msgid ""
"The :envvar:`PYTHONMALLOC` environment variable can be used to configure the "
"memory allocators used by Python."
msgstr ""
"環境変数 :envvar:`PYTHONMALLOC` を使用して Python が利用するメモリアロケータ"
"を制御することができます。"
#: ../../c-api/memory.rst:91
msgid ""
"The :envvar:`PYTHONMALLOCSTATS` environment variable can be used to print "
"statistics of the :ref:`pymalloc memory allocator <pymalloc>` every time a "
"new pymalloc object arena is created, and on shutdown."
msgstr ""
"環境変数 :envvar:`PYTHONMALLOCSTATS` を使用して、新たなオブジェクトアリーナが"
"生成される時と、シャットダウン時に :ref:`pymalloc メモリアロケータ "
"<pymalloc>` の統計情報を表示できます。"
#: ../../c-api/memory.rst:96
msgid "Allocator Domains"
msgstr ""
#: ../../c-api/memory.rst:100
msgid ""
"All allocating functions belong to one of three different \"domains\" (see "
"also :c:type:`PyMemAllocatorDomain`). These domains represent different "
"allocation strategies and are optimized for different purposes. The specific "
"details on how every domain allocates memory or what internal functions each "
"domain calls is considered an implementation detail, but for debugging "
"purposes a simplified table can be found at :ref:`here <default-memory-"
"allocators>`. There is no hard requirement to use the memory returned by the "
"allocation functions belonging to a given domain for only the purposes "
"hinted by that domain (although this is the recommended practice). For "
"example, one could use the memory returned by :c:func:`PyMem_RawMalloc` for "
"allocating Python objects or the memory returned by :c:func:"
"`PyObject_Malloc` for allocating memory for buffers."
msgstr ""
#: ../../c-api/memory.rst:112
msgid "The three allocation domains are:"
msgstr ""
#: ../../c-api/memory.rst:114
msgid ""
"Raw domain: intended for allocating memory for general-purpose memory "
"buffers where the allocation *must* go to the system allocator or where the "
"allocator can operate without the :term:`GIL`. The memory is requested "
"directly to the system."
msgstr ""
#: ../../c-api/memory.rst:119
msgid ""
"\"Mem\" domain: intended for allocating memory for Python buffers and "
"general-purpose memory buffers where the allocation must be performed with "
"the :term:`GIL` held. The memory is taken from the Python private heap."
msgstr ""
#: ../../c-api/memory.rst:123
msgid ""
"Object domain: intended for allocating memory belonging to Python objects. "
"The memory is taken from the Python private heap."
msgstr ""
#: ../../c-api/memory.rst:126
msgid ""
"When freeing memory previously allocated by the allocating functions "
"belonging to a given domain,the matching specific deallocating functions "
"must be used. For example, :c:func:`PyMem_Free` must be used to free memory "
"allocated using :c:func:`PyMem_Malloc`."
msgstr ""
#: ../../c-api/memory.rst:131
msgid "Raw Memory Interface"
msgstr "生メモリインターフェース"
#: ../../c-api/memory.rst:133
msgid ""
"The following function sets are wrappers to the system allocator. These "
"functions are thread-safe, the :term:`GIL <global interpreter lock>` does "
"not need to be held."
msgstr ""
"以下の関数群はシステムのアロケータをラップします。\n"
"これらの関数はスレッドセーフで、 :term:`GIL <global interpreter lock>` を保持"
"していなくても呼び出すことができます。"
#: ../../c-api/memory.rst:137
msgid ""
"The :ref:`default raw memory allocator <default-memory-allocators>` uses the "
"following functions: :c:func:`malloc`, :c:func:`calloc`, :c:func:`realloc` "
"and :c:func:`free`; call ``malloc(1)`` (or ``calloc(1, 1)``) when requesting "
"zero bytes."
msgstr ""
"デフォルトの :ref:`生メモリアロケーター <default-memory-allocators>` は次の関"
"数を利用します: :c:func:`malloc`, :c:func:`calloc`, :c:func:`realloc`, :c:"
"func:`free`\n"
"0バイトを要求されたときには ``malloc(1)`` (あるいは ``calloc(1, 1)``) を呼び"
"ます。"
#: ../../c-api/memory.rst:146 ../../c-api/memory.rst:217
#: ../../c-api/memory.rst:325
msgid ""
"Allocates *n* bytes and returns a pointer of type :c:expr:`void*` to the "
"allocated memory, or ``NULL`` if the request fails."
msgstr ""
"*n* バイトを割り当て、そのメモリを指す :c:expr:`void*` 型のポインタを返しま"
"す。要求が失敗した場合 ``NULL`` を返します。"
#: ../../c-api/memory.rst:149
msgid ""
"Requesting zero bytes returns a distinct non-``NULL`` pointer if possible, "
"as if ``PyMem_RawMalloc(1)`` had been called instead. The memory will not "
"have been initialized in any way."
msgstr ""
"0バイトを要求すると、 ``PyMem_RawMalloc(1)`` が呼ばれたときと同じように、可能"
"なら ``NULL`` でないユニークなポインタを返します。確保されたメモリーにはいか"
"なる初期化も行われません。"
#: ../../c-api/memory.rst:156 ../../c-api/memory.rst:227
#: ../../c-api/memory.rst:335
msgid ""
"Allocates *nelem* elements each whose size in bytes is *elsize* and returns "
"a pointer of type :c:expr:`void*` to the allocated memory, or ``NULL`` if "
"the request fails. The memory is initialized to zeros."
msgstr ""
"各要素が *elsize* バイトの要素 *nelem* 個分のメモリーを確保し、そのメモリーを"
"指す :c:expr:`void*` 型のポインタを返します。アロケートに失敗した場合は "
"``NULL`` を返します。確保されたメモリー領域はゼロで初期化されます。"
#: ../../c-api/memory.rst:160
msgid ""
"Requesting zero elements or elements of size zero bytes returns a distinct "
"non-``NULL`` pointer if possible, as if ``PyMem_RawCalloc(1, 1)`` had been "
"called instead."
msgstr ""
"要素数か要素のサイズが0バイトの要求に対しては、可能なら ``PyMem_RawCalloc(1, "
"1)`` が呼ばれたのと同じように、ユニークな ``NULL`` でないポインタを返します。"
#: ../../c-api/memory.rst:169 ../../c-api/memory.rst:240
#: ../../c-api/memory.rst:348
msgid ""
"Resizes the memory block pointed to by *p* to *n* bytes. The contents will "
"be unchanged to the minimum of the old and the new sizes."
msgstr ""
"*p* が指すメモリブロックを *n* バイトにリサイズします。古いサイズと新しいサイ"
"ズの小さい方までの内容は変更されません。"
#: ../../c-api/memory.rst:172
msgid ""
"If *p* is ``NULL``, the call is equivalent to ``PyMem_RawMalloc(n)``; else "
"if *n* is equal to zero, the memory block is resized but is not freed, and "
"the returned pointer is non-``NULL``."
msgstr ""
"*p* が ``NULL`` の場合呼び出しは ``PyMem_RawMalloc(n)`` と等価です。そうでな"
"く、 *n* がゼロに等しい場合、メモリブロックはリサイズされますが解放されませ"
"ん。返されたポインタは非 ``NULL`` です。"
#: ../../c-api/memory.rst:176
msgid ""
"Unless *p* is ``NULL``, it must have been returned by a previous call to :c:"
"func:`PyMem_RawMalloc`, :c:func:`PyMem_RawRealloc` or :c:func:"
"`PyMem_RawCalloc`."
msgstr ""
"*p* が ``NULL`` でない限り、*p* はそれより前の :c:func:`PyMem_RawMalloc`, :c:"
"func:`PyMem_RawRealloc`, :c:func:`PyMem_RawCalloc` の呼び出しにより返されなけ"
"ればなりません。"
#: ../../c-api/memory.rst:180
msgid ""
"If the request fails, :c:func:`PyMem_RawRealloc` returns ``NULL`` and *p* "
"remains a valid pointer to the previous memory area."
msgstr ""
"要求が失敗した場合 :c:func:`PyMem_RawRealloc` は ``NULL`` を返し、 *p* は前の"
"メモリエリアをさす有効なポインタのままです。"
#: ../../c-api/memory.rst:186
msgid ""
"Frees the memory block pointed to by *p*, which must have been returned by a "
"previous call to :c:func:`PyMem_RawMalloc`, :c:func:`PyMem_RawRealloc` or :c:"
"func:`PyMem_RawCalloc`. Otherwise, or if ``PyMem_RawFree(p)`` has been "
"called before, undefined behavior occurs."
msgstr ""
"*p* が指すメモリブロックを解放します。 *p* は以前呼び出した :c:func:"
"`PyMem_RawMalloc`, :c:func:`PyMem_RawRealloc`, :c:func:`PyMem_RawCalloc` の"
"返した値でなければなりません。それ以外の場合や ``PyMem_RawFree(p)`` を呼び出"
"した後だった場合、未定義の動作になります。"
#: ../../c-api/memory.rst:191 ../../c-api/memory.rst:261
#: ../../c-api/memory.rst:369
msgid "If *p* is ``NULL``, no operation is performed."
msgstr "*p* が ``NULL`` の場合何もしません。"
#: ../../c-api/memory.rst:197
msgid "Memory Interface"
msgstr "メモリインターフェース"
#: ../../c-api/memory.rst:199 ../../c-api/memory.rst:305
msgid ""
"The following function sets, modeled after the ANSI C standard, but "
"specifying behavior when requesting zero bytes, are available for allocating "
"and releasing memory from the Python heap."
msgstr ""
"以下の関数群が利用して Python ヒープに対してメモリを確保したり解放したり出来"
"ます。これらの関数は ANSI C 標準に従ってモデル化されていますが、0 バイトを要"
"求した際の動作についても定義しています:"
#: ../../c-api/memory.rst:203
msgid ""
"The :ref:`default memory allocator <default-memory-allocators>` uses the :"
"ref:`pymalloc memory allocator <pymalloc>`."
msgstr ""
#: ../../c-api/memory.rst:208 ../../c-api/memory.rst:320
msgid ""
"The :term:`GIL <global interpreter lock>` must be held when using these "
"functions."
msgstr ""
"これらの関数を呼ぶときには、 :term:`GIL <global interpreter lock>` を保持して"
"おく必要があります。"
#: ../../c-api/memory.rst:213
msgid ""
"The default allocator is now pymalloc instead of system :c:func:`malloc`."
msgstr ""
"デフォルトのアロケータがシステムの :c:func:`malloc` から pymalloc になりまし"
"た。"
#: ../../c-api/memory.rst:220
msgid ""
"Requesting zero bytes returns a distinct non-``NULL`` pointer if possible, "
"as if ``PyMem_Malloc(1)`` had been called instead. The memory will not have "
"been initialized in any way."
msgstr ""
"0バイトを要求すると、 ``PyMem_Malloc(1)`` が呼ばれたときと同じように、可能な"
"ら ``NULL`` でないユニークなポインタを返します。\n"
"確保されたメモリーにはいかなる初期化も行われません。"
#: ../../c-api/memory.rst:231
msgid ""
"Requesting zero elements or elements of size zero bytes returns a distinct "
"non-``NULL`` pointer if possible, as if ``PyMem_Calloc(1, 1)`` had been "
"called instead."
msgstr ""
"要素数か要素のサイズが0バイトの要求に対しては、可能なら ``PyMem_Calloc(1, "
"1)`` が呼ばれたのと同じように、ユニークな ``NULL`` でないポインタを返します。"
#: ../../c-api/memory.rst:243
msgid ""
"If *p* is ``NULL``, the call is equivalent to ``PyMem_Malloc(n)``; else if "
"*n* is equal to zero, the memory block is resized but is not freed, and the "
"returned pointer is non-``NULL``."
msgstr ""
"*p* が ``NULL`` の場合呼び出しは ``PyMem_Malloc(n)`` と等価です。そうでな"
"く、 *n* がゼロに等しい場合、メモリブロックはリサイズされますが解放されませ"
"ん。返されたポインタは非 ``NULL`` です。"
#: ../../c-api/memory.rst:247
msgid ""
"Unless *p* is ``NULL``, it must have been returned by a previous call to :c:"
"func:`PyMem_Malloc`, :c:func:`PyMem_Realloc` or :c:func:`PyMem_Calloc`."
msgstr ""
"*p* が ``NULL`` でない限り、*p* はそれより前の :c:func:`PyMem_Malloc`, :c:"
"func:`PyMem_Realloc` または :c:func:`PyMem_Calloc` の呼び出しにより返されなけ"
"ればなりません。"
#: ../../c-api/memory.rst:250
msgid ""
"If the request fails, :c:func:`PyMem_Realloc` returns ``NULL`` and *p* "
"remains a valid pointer to the previous memory area."
msgstr ""
"要求が失敗した場合 :c:func:`PyMem_Realloc` は ``NULL`` を返し、 *p* は前のメ"
"モリエリアをさす有効なポインタのままです。"
#: ../../c-api/memory.rst:256
msgid ""
"Frees the memory block pointed to by *p*, which must have been returned by a "
"previous call to :c:func:`PyMem_Malloc`, :c:func:`PyMem_Realloc` or :c:func:"
"`PyMem_Calloc`. Otherwise, or if ``PyMem_Free(p)`` has been called before, "
"undefined behavior occurs."
msgstr ""
"*p* が指すメモリブロックを解放します。 *p* は以前呼び出した :c:func:"
"`PyMem_Malloc`、 :c:func:`PyMem_Realloc`、または :c:func:`PyMem_Calloc` の返"
"した値でなければなりません。それ以外の場合や ``PyMem_Free(p)`` を呼び出した後"
"だった場合、未定義の動作になります。"
#: ../../c-api/memory.rst:263
msgid ""
"The following type-oriented macros are provided for convenience. Note that "
"*TYPE* refers to any C type."
msgstr ""
"以下に挙げる型対象のマクロは利便性のために提供されているものです。*TYPE* は任"
"意の C の型を表します。"
#: ../../c-api/memory.rst:269
msgid ""
"Same as :c:func:`PyMem_Malloc`, but allocates ``(n * sizeof(TYPE))`` bytes "
"of memory. Returns a pointer cast to :c:expr:`TYPE*`. The memory will not "
"have been initialized in any way."
msgstr ""
":c:func:`PyMem_Malloc` と同じですが、 ``(n * sizeof(TYPE))`` バイトのメモリを"
"確保します。 :c:expr:`TYPE*` に型キャストされたポインタを返します。メモリには"
"何の初期化も行われていません。"
#: ../../c-api/memory.rst:276
msgid ""
"Same as :c:func:`PyMem_Realloc`, but the memory block is resized to ``(n * "
"sizeof(TYPE))`` bytes. Returns a pointer cast to :c:expr:`TYPE*`. On "
"return, *p* will be a pointer to the new memory area, or ``NULL`` in the "
"event of failure."
msgstr ""
":c:func:`PyMem_Realloc` と同じですが、 ``(n * sizeof(TYPE))`` バイトにサイズ"
"変更されたメモリを確保します。\n"
":c:expr:`TYPE*` に型キャストされたポインタを返します。\n"
"関数が終わったとき、 *p* は新しいメモリ領域のポインタか、失敗した場合は "
"``NULL`` になります。"
#: ../../c-api/memory.rst:281
msgid ""
"This is a C preprocessor macro; *p* is always reassigned. Save the original "
"value of *p* to avoid losing memory when handling errors."
msgstr ""
"これは C プリプロセッサマクロです。*p* は常に再代入されます。エラー処理時にメ"
"モリを失うのを避けるには *p* の元の値を保存してください。"
#: ../../c-api/memory.rst:287
msgid "Same as :c:func:`PyMem_Free`."
msgstr ":c:func:`PyMem_Free` と同じです。"
#: ../../c-api/memory.rst:289
msgid ""
"In addition, the following macro sets are provided for calling the Python "
"memory allocator directly, without involving the C API functions listed "
"above. However, note that their use does not preserve binary compatibility "
"across Python versions and is therefore deprecated in extension modules."
msgstr ""
"上記に加えて、C API 関数を介することなく Python メモリ操作関数を直接呼び出す"
"ための以下のマクロセットが提供されています。ただし、これらのマクロは Python "
"バージョン間でのバイナリ互換性を保てず、それゆえに拡張モジュールでは撤廃され"
"ているので注意してください。"
#: ../../c-api/memory.rst:294
msgid "``PyMem_MALLOC(size)``"
msgstr "``PyMem_MALLOC(size)``"
#: ../../c-api/memory.rst:295
msgid "``PyMem_NEW(type, size)``"
msgstr "``PyMem_NEW(type, size)``"
#: ../../c-api/memory.rst:296
msgid "``PyMem_REALLOC(ptr, size)``"
msgstr "``PyMem_REALLOC(ptr, size)``"
#: ../../c-api/memory.rst:297
msgid "``PyMem_RESIZE(ptr, type, size)``"
msgstr "``PyMem_RESIZE(ptr, type, size)``"
#: ../../c-api/memory.rst:298
msgid "``PyMem_FREE(ptr)``"
msgstr "``PyMem_FREE(ptr)``"
#: ../../c-api/memory.rst:299
msgid "``PyMem_DEL(ptr)``"
msgstr "``PyMem_DEL(ptr)``"
#: ../../c-api/memory.rst:303
msgid "Object allocators"
msgstr "オブジェクトアロケータ"
#: ../../c-api/memory.rst:310
msgid ""
"There is no guarantee that the memory returned by these allocators can be "
"successfully cast to a Python object when intercepting the allocating "
"functions in this domain by the methods described in the :ref:`Customize "
"Memory Allocators <customize-memory-allocators>` section."
msgstr ""
#: ../../c-api/memory.rst:315
msgid ""
"The :ref:`default object allocator <default-memory-allocators>` uses the :"
"ref:`pymalloc memory allocator <pymalloc>`."
msgstr ""
#: ../../c-api/memory.rst:328
msgid ""
"Requesting zero bytes returns a distinct non-``NULL`` pointer if possible, "
"as if ``PyObject_Malloc(1)`` had been called instead. The memory will not "
"have been initialized in any way."
msgstr ""
"0バイトを要求すると、 ``PyObject_Malloc(1)`` が呼ばれたときと同じように、可能"
"なら ``NULL`` でないユニークなポインタを返します。\n"
"確保されたメモリーにはいかなる初期化も行われません。"
#: ../../c-api/memory.rst:339
msgid ""
"Requesting zero elements or elements of size zero bytes returns a distinct "
"non-``NULL`` pointer if possible, as if ``PyObject_Calloc(1, 1)`` had been "
"called instead."
msgstr ""
"要素数か要素のサイズが0バイトの要求に対しては、可能なら ``PyObject_Calloc(1, "
"1)`` が呼ばれたのと同じように、ユニークな ``NULL`` でないポインタを返します。"
#: ../../c-api/memory.rst:351
msgid ""
"If *p* is ``NULL``, the call is equivalent to ``PyObject_Malloc(n)``; else "
"if *n* is equal to zero, the memory block is resized but is not freed, and "
"the returned pointer is non-``NULL``."
msgstr ""
"*p* が ``NULL`` の場合呼び出しは ``PyObject_Malloc(n)`` と等価です。そうでな"
"く、 *n* がゼロに等しい場合、メモリブロックはリサイズされますが解放されませ"
"ん。返されたポインタは非 ``NULL`` です。"
#: ../../c-api/memory.rst:355
msgid ""
"Unless *p* is ``NULL``, it must have been returned by a previous call to :c:"
"func:`PyObject_Malloc`, :c:func:`PyObject_Realloc` or :c:func:"
"`PyObject_Calloc`."
msgstr ""
"*p* が ``NULL`` でない限り、*p* はそれより前の :c:func:`PyObject_Malloc`, :c:"
"func:`PyObject_Realloc` または :c:func:`PyObject_Calloc` の呼び出しにより返さ"
"れなければなりません。"
#: ../../c-api/memory.rst:358
msgid ""
"If the request fails, :c:func:`PyObject_Realloc` returns ``NULL`` and *p* "
"remains a valid pointer to the previous memory area."
msgstr ""
"要求が失敗した場合 :c:func:`PyObject_Realloc` は ``NULL`` を返し、 *p* は前の"
"メモリエリアをさす有効なポインタのままです。"
#: ../../c-api/memory.rst:364
msgid ""
"Frees the memory block pointed to by *p*, which must have been returned by a "
"previous call to :c:func:`PyObject_Malloc`, :c:func:`PyObject_Realloc` or :c:"
"func:`PyObject_Calloc`. Otherwise, or if ``PyObject_Free(p)`` has been "
"called before, undefined behavior occurs."
msgstr ""
"*p* が指すメモリブロックを解放します。 *p* は以前呼び出した :c:func:"
"`PyObject_Malloc`、 :c:func:`PyObject_Realloc`、または :c:func:"
"`PyObject_Calloc` の返した値でなければなりません。それ以外の場合や "
"``PyObject_Free(p)`` を呼び出した後だった場合、未定義の動作になります。"
#: ../../c-api/memory.rst:375
msgid "Default Memory Allocators"
msgstr ""
#: ../../c-api/memory.rst:377
msgid "Default memory allocators:"
msgstr ""
#: ../../c-api/memory.rst:380
msgid "Configuration"
msgstr "Configuration"
#: ../../c-api/memory.rst:380
msgid "Name"
msgstr "名前"
#: ../../c-api/memory.rst:380
msgid "PyMem_RawMalloc"
msgstr "PyMem_RawMalloc"
#: ../../c-api/memory.rst:380
msgid "PyMem_Malloc"
msgstr "PyMem_Malloc"
#: ../../c-api/memory.rst:380
msgid "PyObject_Malloc"
msgstr "PyObject_Malloc"
#: ../../c-api/memory.rst:382
msgid "Release build"
msgstr "リリースビルド"
#: ../../c-api/memory.rst:382
msgid "``\"pymalloc\"``"
msgstr "``\"pymalloc\"``"
#: ../../c-api/memory.rst:382 ../../c-api/memory.rst:384
msgid "``malloc``"
msgstr "``malloc``"
#: ../../c-api/memory.rst:382
msgid "``pymalloc``"
msgstr "``pymalloc``"
#: ../../c-api/memory.rst:383
msgid "Debug build"
msgstr "デバッグビルド"
#: ../../c-api/memory.rst:383
msgid "``\"pymalloc_debug\"``"
msgstr "``\"pymalloc_debug\"``"
#: ../../c-api/memory.rst:383 ../../c-api/memory.rst:385
msgid "``malloc`` + debug"
msgstr "``malloc`` + debug"
#: ../../c-api/memory.rst:383
msgid "``pymalloc`` + debug"
msgstr "``pymalloc`` + debug"
#: ../../c-api/memory.rst:384
msgid "Release build, without pymalloc"
msgstr "pymalloc 無しのリリースビルド"
#: ../../c-api/memory.rst:384
msgid "``\"malloc\"``"
msgstr "``\"malloc\"``"
#: ../../c-api/memory.rst:385
msgid "Debug build, without pymalloc"
msgstr "pymalloc 無しのデバッグビルド"
#: ../../c-api/memory.rst:385
msgid "``\"malloc_debug\"``"
msgstr "``\"malloc_debug\"``"
#: ../../c-api/memory.rst:388
msgid "Legend:"
msgstr "説明:"
#: ../../c-api/memory.rst:390
msgid "Name: value for :envvar:`PYTHONMALLOC` environment variable."
msgstr ""
#: ../../c-api/memory.rst:391
msgid ""
"``malloc``: system allocators from the standard C library, C functions: :c:"
"func:`malloc`, :c:func:`calloc`, :c:func:`realloc` and :c:func:`free`."
msgstr ""
#: ../../c-api/memory.rst:393
msgid "``pymalloc``: :ref:`pymalloc memory allocator <pymalloc>`."
msgstr ""
#: ../../c-api/memory.rst:394
msgid ""
"\"+ debug\": with :ref:`debug hooks on the Python memory allocators <pymem-"
"debug-hooks>`."
msgstr ""
#: ../../c-api/memory.rst:396
msgid "\"Debug build\": :ref:`Python build in debug mode <debug-build>`."
msgstr ""
#: ../../c-api/memory.rst:401
msgid "Customize Memory Allocators"
msgstr "メモリアロケータをカスタマイズする"
#: ../../c-api/memory.rst:407
msgid ""
"Structure used to describe a memory block allocator. The structure has the "
"following fields:"
msgstr ""
#: ../../c-api/memory.rst:411 ../../c-api/memory.rst:647
msgid "Field"
msgstr "フィールド"
#: ../../c-api/memory.rst:411 ../../c-api/memory.rst:647
msgid "Meaning"
msgstr "意味"
#: ../../c-api/memory.rst:413 ../../c-api/memory.rst:649
msgid "``void *ctx``"
msgstr "``void *ctx``"
#: ../../c-api/memory.rst:413 ../../c-api/memory.rst:649
msgid "user context passed as first argument"
msgstr "第一引数として渡されるユーザコンテキスト"
#: ../../c-api/memory.rst:415
msgid "``void* malloc(void *ctx, size_t size)``"
msgstr "``void* malloc(void *ctx, size_t size)``"
#: ../../c-api/memory.rst:415
msgid "allocate a memory block"
msgstr "メモリブロックを割り当てます"
#: ../../c-api/memory.rst:417
msgid "``void* calloc(void *ctx, size_t nelem, size_t elsize)``"
msgstr "``void* calloc(void *ctx, size_t nelem, size_t elsize)``"
#: ../../c-api/memory.rst:417
msgid "allocate a memory block initialized with zeros"
msgstr "0で初期化されたメモリブロックを割り当てます"
#: ../../c-api/memory.rst:420
msgid "``void* realloc(void *ctx, void *ptr, size_t new_size)``"
msgstr "``void* realloc(void *ctx, void *ptr, size_t new_size)``"
#: ../../c-api/memory.rst:420
msgid "allocate or resize a memory block"
msgstr "メモリブロックを割り当てるかリサイズします"
#: ../../c-api/memory.rst:422
msgid "``void free(void *ctx, void *ptr)``"
msgstr "``void free(void *ctx, void *ptr)``"
#: ../../c-api/memory.rst:422
msgid "free a memory block"
msgstr "メモリブロックを解放する"
#: ../../c-api/memory.rst:425
msgid ""
"The :c:type:`PyMemAllocator` structure was renamed to :c:type:"
"`PyMemAllocatorEx` and a new ``calloc`` field was added."
msgstr ""
":c:type:`PyMemAllocator` 構造体が :c:type:`PyMemAllocatorEx` にリネームされた"
"上で ``calloc`` フィールドが追加されました。"
#: ../../c-api/memory.rst:432
msgid "Enum used to identify an allocator domain. Domains:"
msgstr "アロケータドメインを同定するための列挙型です。ドメインは:"
#: ../../c-api/memory.rst:436 ../../c-api/memory.rst:445
#: ../../c-api/memory.rst:454
msgid "Functions:"
msgstr "関数:"
#: ../../c-api/memory.rst:438
msgid ":c:func:`PyMem_RawMalloc`"
msgstr ":c:func:`PyMem_RawMalloc`"
#: ../../c-api/memory.rst:439
msgid ":c:func:`PyMem_RawRealloc`"
msgstr ":c:func:`PyMem_RawRealloc`"
#: ../../c-api/memory.rst:440
msgid ":c:func:`PyMem_RawCalloc`"
msgstr ":c:func:`PyMem_RawCalloc`"
#: ../../c-api/memory.rst:441
msgid ":c:func:`PyMem_RawFree`"
msgstr ":c:func:`PyMem_RawFree`"
#: ../../c-api/memory.rst:447
msgid ":c:func:`PyMem_Malloc`,"
msgstr ":c:func:`PyMem_Malloc`,"
#: ../../c-api/memory.rst:448
msgid ":c:func:`PyMem_Realloc`"
msgstr ":c:func:`PyMem_Realloc`"
#: ../../c-api/memory.rst:449
msgid ":c:func:`PyMem_Calloc`"
msgstr ":c:func:`PyMem_Calloc`"
#: ../../c-api/memory.rst:450
msgid ":c:func:`PyMem_Free`"
msgstr ":c:func:`PyMem_Free`"
#: ../../c-api/memory.rst:456
msgid ":c:func:`PyObject_Malloc`"
msgstr ":c:func:`PyObject_Malloc`"
#: ../../c-api/memory.rst:457
msgid ":c:func:`PyObject_Realloc`"
msgstr ":c:func:`PyObject_Realloc`"
#: ../../c-api/memory.rst:458
msgid ":c:func:`PyObject_Calloc`"
msgstr ":c:func:`PyObject_Calloc`"
#: ../../c-api/memory.rst:459
msgid ":c:func:`PyObject_Free`"
msgstr ":c:func:`PyObject_Free`"
#: ../../c-api/memory.rst:463
msgid "Get the memory block allocator of the specified domain."
msgstr "指定されたドメインのメモリブロックアロケータを取得します。"
#: ../../c-api/memory.rst:468
msgid "Set the memory block allocator of the specified domain."
msgstr "指定されたドメインのメモリブロックアロケータを設定します。"
#: ../../c-api/memory.rst:470
msgid ""
"The new allocator must return a distinct non-``NULL`` pointer when "
"requesting zero bytes."
msgstr ""
"新しいアロケータは、0バイトを要求されたときユニークな ``NULL`` でないポインタ"
"を返さなければなりません。"
#: ../../c-api/memory.rst:473
msgid ""
"For the :c:data:`PYMEM_DOMAIN_RAW` domain, the allocator must be thread-"
"safe: the :term:`GIL <global interpreter lock>` is not held when the "
"allocator is called."
msgstr ""
":c:data:`PYMEM_DOMAIN_RAW` ドメインでは、アロケータはスレッドセーフでなければ"
"なりません: アロケータが呼び出されたとき :term:`GIL <global interpreter "
"lock>` は保持されていません。"
#: ../../c-api/memory.rst:477
msgid ""
"If the new allocator is not a hook (does not call the previous allocator), "
"the :c:func:`PyMem_SetupDebugHooks` function must be called to reinstall the "
"debug hooks on top on the new allocator."
msgstr ""
"新しいアロケータがフックでない (1つ前のアロケータを呼び出さない) 場合、 :c:"
"func:`PyMem_SetupDebugHooks` 関数を呼び出して、新しいアロケータの上にデバッグ"
"フックを再度設置しなければなりません。"
#: ../../c-api/memory.rst:484
msgid ":c:func:`PyMem_SetAllocator` does have the following contract:"
msgstr ""
#: ../../c-api/memory.rst:486
msgid ""
"It can be called after :c:func:`Py_PreInitialize` and before :c:func:"
"`Py_InitializeFromConfig` to install a custom memory allocator. There are no "
"restrictions over the installed allocator other than the ones imposed by the "
"domain (for instance, the Raw Domain allows the allocator to be called "
"without the GIL held). See :ref:`the section on allocator domains <allocator-"
"domains>` for more information."
msgstr ""
#: ../../c-api/memory.rst:494
msgid ""
"If called after Python has finish initializing (after :c:func:"
"`Py_InitializeFromConfig` has been called) the allocator **must** wrap the "
"existing allocator. Substituting the current allocator for some other "
"arbitrary one is **not supported**."
msgstr ""
#: ../../c-api/memory.rst:503
msgid ""
"Setup :ref:`debug hooks in the Python memory allocators <pymem-debug-hooks>` "
"to detect memory errors."
msgstr ""
#: ../../c-api/memory.rst:510
msgid "Debug hooks on the Python memory allocators"
msgstr ""
#: ../../c-api/memory.rst:512
msgid ""
"When :ref:`Python is built in debug mode <debug-build>`, the :c:func:"
"`PyMem_SetupDebugHooks` function is called at the :ref:`Python "
"preinitialization <c-preinit>` to setup debug hooks on Python memory "
"allocators to detect memory errors."
msgstr ""
#: ../../c-api/memory.rst:517
msgid ""
"The :envvar:`PYTHONMALLOC` environment variable can be used to install debug "
"hooks on a Python compiled in release mode (ex: ``PYTHONMALLOC=debug``)."
msgstr ""
#: ../../c-api/memory.rst:520
msgid ""
"The :c:func:`PyMem_SetupDebugHooks` function can be used to set debug hooks "
"after calling :c:func:`PyMem_SetAllocator`."
msgstr ""
#: ../../c-api/memory.rst:523
msgid ""
"These debug hooks fill dynamically allocated memory blocks with special, "
"recognizable bit patterns. Newly allocated memory is filled with the byte "
"``0xCD`` (``PYMEM_CLEANBYTE``), freed memory is filled with the byte "
"``0xDD`` (``PYMEM_DEADBYTE``). Memory blocks are surrounded by \"forbidden "
"bytes\" filled with the byte ``0xFD`` (``PYMEM_FORBIDDENBYTE``). Strings of "
"these bytes are unlikely to be valid addresses, floats, or ASCII strings."
msgstr ""
#: ../../c-api/memory.rst:530
msgid "Runtime checks:"
msgstr "実行時チェック:"
#: ../../c-api/memory.rst:532
msgid ""
"Detect API violations. For example, detect if :c:func:`PyObject_Free` is "
"called on a memory block allocated by :c:func:`PyMem_Malloc`."
msgstr ""
#: ../../c-api/memory.rst:534
msgid "Detect write before the start of the buffer (buffer underflow)."
msgstr ""
#: ../../c-api/memory.rst:535
msgid "Detect write after the end of the buffer (buffer overflow)."
msgstr ""
#: ../../c-api/memory.rst:536
msgid ""
"Check that the :term:`GIL <global interpreter lock>` is held when allocator "
"functions of :c:data:`PYMEM_DOMAIN_OBJ` (ex: :c:func:`PyObject_Malloc`) and :"
"c:data:`PYMEM_DOMAIN_MEM` (ex: :c:func:`PyMem_Malloc`) domains are called."
msgstr ""
#: ../../c-api/memory.rst:541
msgid ""
"On error, the debug hooks use the :mod:`tracemalloc` module to get the "
"traceback where a memory block was allocated. The traceback is only "
"displayed if :mod:`tracemalloc` is tracing Python memory allocations and the "
"memory block was traced."
msgstr ""
#: ../../c-api/memory.rst:546
msgid ""
"Let *S* = ``sizeof(size_t)``. ``2*S`` bytes are added at each end of each "
"block of *N* bytes requested. The memory layout is like so, where p "
"represents the address returned by a malloc-like or realloc-like function "
"(``p[i:j]`` means the slice of bytes from ``*(p+i)`` inclusive up to "
"``*(p+j)`` exclusive; note that the treatment of negative indices differs "
"from a Python slice):"
msgstr ""
#: ../../c-api/memory.rst:553
msgid "``p[-2*S:-S]``"
msgstr ""
#: ../../c-api/memory.rst:553
msgid ""
"Number of bytes originally asked for. This is a size_t, big-endian (easier "
"to read in a memory dump)."
msgstr ""
#: ../../c-api/memory.rst:560
msgid "``p[-S]``"
msgstr ""
#: ../../c-api/memory.rst:556
msgid "API identifier (ASCII character):"
msgstr ""
#: ../../c-api/memory.rst:558
msgid "``'r'`` for :c:data:`PYMEM_DOMAIN_RAW`."
msgstr ""
#: ../../c-api/memory.rst:559
msgid "``'m'`` for :c:data:`PYMEM_DOMAIN_MEM`."
msgstr ""
#: ../../c-api/memory.rst:560
msgid "``'o'`` for :c:data:`PYMEM_DOMAIN_OBJ`."
msgstr ""
#: ../../c-api/memory.rst:563
msgid "``p[-S+1:0]``"
msgstr ""
#: ../../c-api/memory.rst:563
msgid "Copies of PYMEM_FORBIDDENBYTE. Used to catch under- writes and reads."
msgstr ""
#: ../../c-api/memory.rst:572
msgid "``p[0:N]``"
msgstr ""