类 ara::core::MonotonicBufferResource

[SWS_CORE_06520] Upstream: RS_AP_00130

class MonotonicBufferResource :            public MemoryResource {...};

Implementation of std::pmr::monotonic_buffer_resource type from [mem.res.monotonic.buffer]

Header-Datei	#include "ara/core/memory_resource.h"
Forwarding-Header	#include "ara/core/core_fwd.h"
Scope	namespace ara::core
Basisklasse(n)	MemoryResource

用户指南人工智能生成

在单调增长的缓冲区中管理内存块，具有无异常分配和集中释放特性。

AI 生成未审核模型： gemini-3.8-flash-medium · 推理强度： medium · 温度：不可控 · 提示词： 993d3b66f0fc 来源未决问题（2）

译自德文指南gemini-3.8-flash-low · 2026-10-13 · 德文原文

在单调增长的缓冲区中管理内存块，具有无异常分配和集中释放特性。

类 ara::core::MonotonicBufferResource 提供了一种专门的内存资源，用于从固定内存缓冲区或通过上游资源进行快速、单调的分配。请求的内存按步分配，且在单个释放操作中不会立即释放，而是统一通过 release()（[SWS_CORE_06530]）进行重置。所有操作均声明为完全无异常，其中内存不足通过返回 nullptr 而非异常来指示（[SWS_CORE_06569]）。这些实例不可拷贝，并且在从多个线程并发访问时需要外部同步。

上下文

类 ara::core::MonotonicBufferResource 是 AUTOSAR Adaptive Platform 模块 core 内的具体内存资源，并继承自基类 ara::core::MemoryResource。它针对安全相关和确定性车载应用调整了来自 [mem.res.monotonic.buffer] 的 C++ 标准已知概念 std::pmr::monotonic_buffer_resource。该类的主要作用是通过单调分配内存，以最小的管理开销满足来自连续内存区域的分配请求。

交互对象一方面是调用组件、多态分配器以及在运行时请求内存块的容器。另一方面，该类与可选的上层上游内存资源（MemoryResource）进行交互。该上游资源可以通过诸如 [SWS_CORE_06521] 等构造函数传入，并通过访问方法 upstream_resource()（[SWS_CORE_06531]）进行查询。

生命周期

ara::core::MonotonicBufferResource 的初始化可通过多个构造函数进行控制。除无参数默认构造函数（[SWS_CORE_06524]）外，还提供了接收显式上游资源的重载（[SWS_CORE_06521]）、定义初始缓冲区大小的重载（[SWS_CORE_06525], [SWS_CORE_06522]），或将外部提供的原始内存区域（void* buffer, std::size_t buffer_size）用作初始缓冲区的重载（[SWS_CORE_06526], [SWS_CORE_06523]）。

在所有权关系方面，该类被定义为严格不可复制：复制构造函数（[SWS_CORE_06527]）和复制赋值运算符（[SWS_CORE_06529]）已被删除（=delete）。然而与 ISO-14882 标准不同，AUTOSAR 类通过移动构造函数（[SWS_CORE_06576]）和移动赋值运算符（[SWS_CORE_06577]）实现了显式移动语义，两者分别定义为 noexcept=default。

销毁通过析构函数 ~MonotonicBufferResource()（[SWS_CORE_06528]）进行。AUTOSAR 相对该标准的一个重要偏差在于析构函数未声明为虚函数。通过方法 release()（[SWS_CORE_06530]），可在对象生命周期结束前重置全部已分配的内存。

在并发方面必须注意严格分离：无参构造函数（[SWS_CORE_06524]）、相等性检查 do_is_equal()（[SWS_CORE_06571]）以及查询 upstream_resource()（[SWS_CORE_06531]）被声明为线程安全。所有带参数的构造函数（[SWS_CORE_06521]、[SWS_CORE_06522]、[SWS_CORE_06523]、[SWS_CORE_06525]、[SWS_CORE_06526]）、分配操作（[SWS_CORE_06569]、[SWS_CORE_06570]）、release()（[SWS_CORE_06530]）以及析构函数（[SWS_CORE_06528]）均非线程安全，并行访问时需要外部同步。

使用路径

典型的应用流程包括提供、连续分配以及集中释放：

实例化：应用程序创建实例，例如指定缓冲区大小和上游资源（[SWS_CORE_06522]）或固定缓冲区（[SWS_CORE_06526]）。
分配：内存请求通过受保护的方法 do_allocate(bytes, alignment)（[SWS_CORE_06569]）处理。若现有缓冲区不足，该实例会从上游资源获取新的缓冲区。
释放：对 do_deallocate(p, bytes, alignment)（[SWS_CORE_06570]）的调用不会单独缩小缓冲区；内部配额指针单调向前移动。
缓冲区重置：使用 release()（[SWS_CORE_06530]）可一次性释放所有通过上游获取的内存块，缓冲区便可用于新的周期。
资源比较：通过 do_is_equal()（[SWS_CORE_06571]）可以检查两个内存资源是否相同。

时序图：从分配、忽略释放到通过 release() 进行集体重置的典型内存周期。来源：[SWS_CORE_06522]、[SWS_CORE_06569]、[SWS_CORE_06570]、[SWS_CORE_06530]

错误场景

该类遵循针对无异常嵌入式系统的严格规定：所有成员函数、构造函数和运算符均声明为 noexcept，并提供完全的异常安全性。

在发生错误时，其行为特意偏离了标准库：

分配失败：若 do_allocate()（[SWS_CORE_06569]）中的请求无法满足，不会抛出异常 std::bad_alloc，而是返回 nullptr。调用方必须强制检查返回值是否为 nullptr。
释放错误：若在 do_deallocate()（[SWS_CORE_06570]）中释放时发生错误，根据规范将静默忽略该错误。
通过基类指针销毁：由于析构函数（[SWS_CORE_06528]）不是虚函数，通过指向基类 MemoryResource 的指针进行销毁可能会导致未定义行为（Interpretation：销毁必须通过具体类型进行）。问题 Q-add18020b48f3131 (未决)

本指南由 AI 系统基于 AUTOSAR Adaptive R25-11 规范生成。

成员图

类图

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详细视图

请在大纲中选择一个条目。

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构造函数和析构函数

MonotonicBufferResource 函数 8

except for the following deviations: 1. The function is noexcept ≙ [mem.res.monotonic.buffer]

重载 MonotonicBufferResource 8

explicit MonotonicBufferResource (MemoryResource *upstream) noexcept; SWS_CORE_06521

MonotonicBufferResource (std::size_t initial_size, MemoryResource *upstream) noexcept; SWS_CORE_06522

MonotonicBufferResource (void *buffer, std::size_t buffer_size, Memory Resource *upstream) noexcept; SWS_CORE_06523

MonotonicBufferResource () noexcept; SWS_CORE_06524

explicit MonotonicBufferResource (std::size_t initial_size) noexcept; SWS_CORE_06525

MonotonicBufferResource (void *buffer, std::size_t buffer_size) noexcept; SWS_CORE_06526

MonotonicBufferResource (const MonotonicBufferResource &)=delete; SWS_CORE_06527

MonotonicBufferResource (MonotonicBufferResource &&other) noexcept=default; SWS_CORE_06576

~MonotonicBufferResource 函数

except for the following deviations: 1. The function is noexcept 2. The function is not virtual ≙ [mem.res.monotonic.buffer]

~MonotonicBufferResource () noexcept override;

方法

do_allocate 函数

except for the following deviations: 1. The function is noexcept 2. The function returns nullptr instead of (potentially) throwing a std::bad_alloc exception ≙ std::bad_alloc

void * do_allocate (std::size_t bytes, std::size_t alignment) noexcept override;

do_deallocate 函数

except for the following deviations: 1. The function is noexcept 2. If unsuccessful: errors will be silently ignored ≙ [mem.res.monotonic.buffer]

void do_deallocate (void *p, std::size_t bytes, std::size_t alignment) noexcept override;

do_is_equal 函数

except for the following deviations: 1. The function is noexcept ≙ [mem.res.monotonic.buffer]

bool do_is_equal (const MemoryResource &other) const noexcept override;

release 函数

except for the following deviations: 1. The function is noexcept ≙ [mem.res.monotonic.buffer]

void release () noexcept;

upstream_resource 函数

except for the following deviations: 1. The function is noexcept ≙ [mem.res.monotonic.buffer]

MemoryResource * upstream_resource () const noexcept;

运算符

operator= 函数 2

≙ [mem.res.monotonic.buffer]

重载 = 2

MonotonicBufferResource & operator= (const MonotonicBufferResource &)=delete; SWS_CORE_06529

MonotonicBufferResource & operator= (MonotonicBufferResource &&other) noexcept=default; SWS_CORE_06577

点击条目以查看其关系。

方法文档

函数 MonotonicBufferResource [SWS_CORE_06521]

explicit MonotonicBufferResource (MemoryResource *upstream) noexcept;

As per corresponding usage in [mem.res.monotonic.buffer] except for the following deviations: 1. The function is noexcept

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource
Exception-Sicherheit	exception safe
Thread-Sicherheit	not thread-safe

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Record: AUTOSAR/AP/record/SWS_CORE_06521
Status: valid/unmigrated
Version: AUTOSAR/AP/record/SWS_CORE_06521@rel:R25-11#b85ab7cc
Content hash: b85ab7cc
Source: https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Core.pdf#nameddest=SWS_CORE_06521

Status: valid/unmigrated Version: rel:R25-11#cf52252c Versionshistorie & Revisions (1 transition, 4 revision)

Current State: valid/unmigrated
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Campaign: 2026-08-13-status-backfill
Active Version: AUTOSAR/AP/record/SWS_CORE_06521@rel:R25-11#cf52252c

Recorded Revisions (4):

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R25-11rel:R25-11#cf52252c2026-10-14 active

Date	Actor	Transition	Reason / Rationale	Campaign
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函数 MonotonicBufferResource [SWS_CORE_06522]

MonotonicBufferResource (std::size_t initial_size, MemoryResource *upstream) noexcept;

As per corresponding usage in [mem.res.monotonic.buffer] except for the following deviations: 1. The function is noexcept

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource
Exception-Sicherheit	exception safe
Thread-Sicherheit	not thread-safe

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Record: AUTOSAR/AP/record/SWS_CORE_06522
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Content hash: 9782c6b8
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Status: valid/unmigrated Version: rel:R25-11#954d5cab Versionshistorie & Revisions (1 transition, 4 revision)

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函数 MonotonicBufferResource [SWS_CORE_06523]

MonotonicBufferResource (void *buffer, std::size_t buffer_size, Memory Resource *upstream) noexcept;

As per corresponding usage in [mem.res.monotonic.buffer] except for the following deviations: 1. The function is noexcept

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource
Exception-Sicherheit	exception safe
Thread-Sicherheit	not thread-safe

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Record: AUTOSAR/AP/record/SWS_CORE_06523
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Content hash: 36b6c4a9
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Status: valid/unmigrated Version: rel:R25-11#18805d3b Versionshistorie & Revisions (1 transition, 4 revision)

Current State: valid/unmigrated
Reason: mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign: 2026-08-13-status-backfill
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R25-11rel:R25-11#18805d3b2026-10-14 active

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函数 MonotonicBufferResource [SWS_CORE_06524]

MonotonicBufferResource () noexcept;

As per corresponding usage in [mem.res.monotonic.buffer] except for the following deviations: 1. The function is noexcept

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource
Exception-Sicherheit	exception safe
Thread-Sicherheit	thread-safe

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Record: AUTOSAR/AP/record/SWS_CORE_06524
Status: valid/unmigrated
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Content hash: 3b581d01
Source: https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Core.pdf#nameddest=SWS_CORE_06524

Status: valid/unmigrated Version: rel:R25-11#d691adfe Versionshistorie & Revisions (1 transition, 4 revision)

Current State: valid/unmigrated
Reason: mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign: 2026-08-13-status-backfill
Active Version: AUTOSAR/AP/record/SWS_CORE_06524@rel:R25-11#d691adfe

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函数 MonotonicBufferResource [SWS_CORE_06525]

explicit MonotonicBufferResource (std::size_t initial_size) noexcept;

As per corresponding usage in [mem.res.monotonic.buffer] except for the following deviations: 1. The function is noexcept

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource
Exception-Sicherheit	exception safe
Thread-Sicherheit	not thread-safe

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Record: AUTOSAR/AP/record/SWS_CORE_06525
Status: valid/unmigrated
Version: AUTOSAR/AP/record/SWS_CORE_06525@rel:R25-11#b26d5246
Content hash: b26d5246
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Status: valid/unmigrated Version: rel:R25-11#0e59defc Versionshistorie & Revisions (1 transition, 4 revision)

Current State: valid/unmigrated
Reason: mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign: 2026-08-13-status-backfill
Active Version: AUTOSAR/AP/record/SWS_CORE_06525@rel:R25-11#0e59defc

Recorded Revisions (4):

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R23-11rel:R23-11#c421df4a2026-10-14
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函数 MonotonicBufferResource [SWS_CORE_06526]

MonotonicBufferResource (void *buffer, std::size_t buffer_size) noexcept;

As per corresponding usage in [mem.res.monotonic.buffer] except for the following deviations: 1. The function is noexcept

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource
Exception-Sicherheit	exception safe
Thread-Sicherheit	not thread-safe

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Record: AUTOSAR/AP/record/SWS_CORE_06526
Status: valid/unmigrated
Version: AUTOSAR/AP/record/SWS_CORE_06526@rel:R25-11#21d21bcc
Content hash: 21d21bcc
Source: https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Core.pdf#nameddest=SWS_CORE_06526

Status: valid/unmigrated Version: rel:R25-11#f89b06c1 Versionshistorie & Revisions (1 transition, 4 revision)

Current State: valid/unmigrated
Reason: mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign: 2026-08-13-status-backfill
Active Version: AUTOSAR/AP/record/SWS_CORE_06526@rel:R25-11#f89b06c1

Recorded Revisions (4):

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R23-11rel:R23-11#d5cf48d92026-10-14
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Date	Actor	Transition	Reason / Rationale	Campaign
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函数 MonotonicBufferResource [SWS_CORE_06527]

MonotonicBufferResource (const MonotonicBufferResource &)=delete;

As per corresponding usage in [mem.res.monotonic.buffer]

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource

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Record: AUTOSAR/AP/record/SWS_CORE_06527
Status: valid/unmigrated
Version: AUTOSAR/AP/record/SWS_CORE_06527@rel:R25-11#3762eacb
Content hash: 3762eacb
Source: https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Core.pdf#nameddest=SWS_CORE_06527

Status: valid/unmigrated Version: rel:R25-11#16e6cac0 Versionshistorie & Revisions (1 transition, 4 revision)

Current State: valid/unmigrated
Reason: mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign: 2026-08-13-status-backfill
Active Version: AUTOSAR/AP/record/SWS_CORE_06527@rel:R25-11#16e6cac0

Recorded Revisions (4):

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R23-11rel:R23-11#6632fcf42026-10-14
R24-11rel:R24-11#de03506d2026-10-14
R25-11rel:R25-11#16e6cac02026-10-14 active

Date	Actor	Transition	Reason / Rationale	Campaign
2026-08-13	tool	`none` → `valid/unmigrated`	mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record	2026-08-13-status-backfill

函数 MonotonicBufferResource [SWS_CORE_06576] Upstream: RS_AP_00145

MonotonicBufferResource (MonotonicBufferResource &&other) noexcept=default;

[AUTOSAR defined] not present in ISO-14882. Move constructor

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource
Exception-Sicherheit	exception safe

Parameter (in)

Parameter	Beschreibung
other	other MonotonicBufferResource to move from

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Record: AUTOSAR/AP/record/SWS_CORE_06576
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Version: AUTOSAR/AP/record/SWS_CORE_06576@rel:R25-11#bc89cc1a
Content hash: bc89cc1a
Source: https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Core.pdf#nameddest=SWS_CORE_06576

Status: valid/unmigrated Version: rel:R25-11#4c2df3e5 Versionshistorie & Revisions (1 transition, 3 revision)

Current State: valid/unmigrated
Reason: mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign: 2026-08-13-status-backfill
Active Version: AUTOSAR/AP/record/SWS_CORE_06576@rel:R25-11#4c2df3e5

Recorded Revisions (3):

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Date	Actor	Transition	Reason / Rationale	Campaign
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函数 do_allocate [SWS_CORE_06569]

void * do_allocate (std::size_t bytes, std::size_t alignment) noexcept override;

As per corresponding usage in [mem.res.monotonic.buffer] except for the following deviations: 1. The function is noexcept 2. The function returns nullptr instead of (potentially) throwing a std::bad_alloc exception

AI 生成未审核模型： gemini-3.8-flash-medium · 推理强度： medium · 温度：不可控 · 提示词： 601be17f5d68 来源未决问题（1）

译自德文指南gemini-3.8-flash-low · 2026-10-13 · 德文原文

使用

类 ara::core::MonotonicBufferResource 的受保护成员函数 do_allocate 用于根据 [mem.res.monotonic.buffer] [SWS_CORE_06569] 分配内存区域。它实现了基类 ara::core::MemoryResource 的纯虚接口 do_allocate [SWS_CORE_06566]。作为解释，由于其 protected 可见性，同步调用可能主要通过基类的公共分配方法间接进行。问题 Q-21b2da19c0fd7f8f (未决)该函数接收以字节为单位的请求大小以及所需的对齐方式（alignment）。

错误处理与异常安全性

与 C++ 标准行为相反，该函数在分配失败时不会抛出 std::bad_alloc 异常，而是返回一个 nullptr [SWS_CORE_06569]。通过带有 noexcept 的声明，该方法被指定为具有异常安全性 [SWS_CORE_06569]。因此，调用者必须始终检查结果是否为 nullptr，以检测内存不足的情况。

并发性与交互

该方法被指定为非线程安全 [SWS_CORE_06569]。如果并发地从多个线程发起分配，则必须通过调用方在外部进行同步。这与 ara::core::UnsynchronizedPoolResource::do_allocate [SWS_CORE_00058] 的行为一致，而 ara::core::SynchronizedPoolResource::do_allocate 针对并发调用被设计为线程安全的 [SWS_CORE_00061]。

本使用说明根据 AUTOSAR R25-11 规范自动生成。

实现者指南即将推出（复杂度 I1）

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource
Exception-Sicherheit	exception safe
Thread-Sicherheit	not thread-safe
Sichtbarkeit	protected

Rückgabewert

Typ	Beschreibung
void *	• If successful: As per corresponding usage in [mem.res.monotonic.buffer] • If unsuccessful: the returned pointer shall be nullptr

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Record: AUTOSAR/AP/record/SWS_CORE_06569
Status: valid/unmigrated
Version: AUTOSAR/AP/record/SWS_CORE_06569@rel:R25-11#ce1cd97d
Content hash: ce1cd97d
Source: https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Core.pdf#nameddest=SWS_CORE_06569

Status: valid/unmigrated Version: rel:R25-11#b9ee8ac6 Versionshistorie & Revisions (1 transition, 3 revision)

Current State: valid/unmigrated
Reason: mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign: 2026-08-13-status-backfill
Active Version: AUTOSAR/AP/record/SWS_CORE_06569@rel:R25-11#b9ee8ac6

Recorded Revisions (3):

R25-11rel:R25-11#abbfa0d62026-09-30
R24-11rel:R24-11#59103c462026-10-14
R25-11rel:R25-11#b9ee8ac62026-10-14 active

Date	Actor	Transition	Reason / Rationale	Campaign
2026-08-13	tool	`none` → `valid/unmigrated`	mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record	2026-08-13-status-backfill

函数 do_deallocate [SWS_CORE_06570]

void do_deallocate (void *p, std::size_t bytes, std::size_t alignment) noexcept override;

As per corresponding usage in [mem.res.monotonic.buffer] except for the following deviations: 1. The function is noexcept 2. If unsuccessful: errors will be silently ignored

AI 生成未审核模型： gemini-3.8-flash-medium · 推理强度： medium · 温度：不可控 · 提示词： e7d49ed79e7c 来源未决问题（1）

译自德文指南gemini-3.8-flash-low · 2026-10-13 · 德文原文

使用

类 ara::core::MonotonicBufferResource 的成员函数 do_deallocate 用于根据 [SWS_CORE_06570] 释放内存区域。它通过头文件 #include "ara/core/memory_resource.h" 定义 [SWS_CORE_06570]。该函数接收指向待释放内存区域的指针 p 以及参数 bytes 和 alignment（类型均为 std::size_t），且不返回任何返回值（void）[SWS_CORE_06570]。其语义遵循 [mem.res.monotonic.buffer] 中的规定，并带有特定的 AUTOSAR 差异 [SWS_CORE_06570]。

错误处理

该函数被声明为 noexcept 并保证异常安全性（exception safe）[SWS_CORE_06570]。如果在执行过程中发生错误，该错误将被静默忽略（errors will be silently ignored）[SWS_CORE_06570]。既不存在返回值，也不存在用于错误报告的特定错误代码。

并发性与限制

关于并发性，do_deallocate 被指定为非线程安全（not thread-safe）[SWS_CORE_06570]。在没有外部同步的情况下从多个线程同时调用是不允许的。该方法具有可见性 protected 并重写基类 ara::core::MemoryResource 的纯虚接口 [SWS_CORE_06567]。解释：调用通常可能通过基类的公共释放接口进行处理。问题 Q-6916292acaa8993b (未决)

相互作用

虽然基类 ara::core::MemoryResource 规定释放方法具有私有可见性 [SWS_CORE_06567]，但 MonotonicBufferResource 以及相关类 ara::core::SynchronizedPoolResource [SWS_CORE_00041] 和 ara::core::UnsynchronizedPoolResource [SWS_CORE_00059] 将其实现为受保护的（protected）并带有静默错误处理。与线程安全的同步池资源 [SWS_CORE_00041] 相反，MonotonicBufferResource 与 ara::core::UnsynchronizedPoolResource [SWS_CORE_00059] 一样需要排除并行访问。

本使用说明由 AI 创建，基于 AUTOSAR Adaptive R25-11 规范的规定。

实现者指南即将推出（复杂度 I1）

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource
Exception-Sicherheit	exception safe
Thread-Sicherheit	not thread-safe
Sichtbarkeit	protected

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Record: AUTOSAR/AP/record/SWS_CORE_06570
Status: valid/unmigrated
Version: AUTOSAR/AP/record/SWS_CORE_06570@rel:R25-11#8cc91e12
Content hash: 8cc91e12
Source: https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Core.pdf#nameddest=SWS_CORE_06570

Status: valid/unmigrated Version: rel:R25-11#f3b1bdb5 Versionshistorie & Revisions (1 transition, 3 revision)

Current State: valid/unmigrated
Reason: mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign: 2026-08-13-status-backfill
Active Version: AUTOSAR/AP/record/SWS_CORE_06570@rel:R25-11#f3b1bdb5

Recorded Revisions (3):

R25-11rel:R25-11#46e378422026-09-30
R24-11rel:R24-11#19c0e1ee2026-10-14
R25-11rel:R25-11#f3b1bdb52026-10-14 active

Date	Actor	Transition	Reason / Rationale	Campaign
2026-08-13	tool	`none` → `valid/unmigrated`	mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record	2026-08-13-status-backfill

函数 do_is_equal [SWS_CORE_06571]

bool do_is_equal (const MemoryResource &other) const noexcept override;

As per corresponding usage in [mem.res.monotonic.buffer] except for the following deviations: 1. The function is noexcept

AI 生成未审核模型： gemini-3.8-flash-medium · 推理强度： medium · 温度：不可控 · 提示词： fc4ade44f9c3 来源

译自德文指南gemini-3.8-flash-low · 2026-10-13 · 德文原文

类 ara::core::MonotonicBufferResource 的 protected 方法 do_is_equal 根据 [SWS_CORE_06571] 重写基类 ara::core::MemoryResource 的纯虚接口。它同步比较当前实例与传入的 const MemoryResource &other 在内存管理语义方面是否相等。

用法与语义

该调用通常通过 MemoryResource 的公共接口间接进行。根据 [SWS_CORE_06571]，其行为依据 [mem.res.monotonic.buffer] 中的用法，但具有显式差异，即该函数被声明为 noexcept。返回值是一个 bool，指示两个资源是否可互换或相同。

错误处理与并发

异常安全性：该函数被指定为 exception safe，且根据 [SWS_CORE_06571] 的 noexcept 签名不抛出任何异常。不存在特定的错误代码或 DET/DEM 报告。
线程安全：该操作被归类为 thread-safe（[SWS_CORE_06571]），可以并发执行。

相互作用

该函数实现了来自 ara::core::MemoryResource 的虚接口契约（[SWS_CORE_06568]）。类似相等的比较实现也可以在其他内存资源中找到，如 ara::core::SynchronizedPoolResource（[SWS_CORE_00042]）和 ara::core::UnsynchronizedPoolResource（[SWS_CORE_00060]）。

该文本由 AI 基于规范 R25-11 生成。

实现者指南即将推出（复杂度 I1）

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource
Exception-Sicherheit	exception safe
Thread-Sicherheit	thread-safe
Sichtbarkeit	protected

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Record: AUTOSAR/AP/record/SWS_CORE_06571
Status: valid/unmigrated
Version: AUTOSAR/AP/record/SWS_CORE_06571@rel:R25-11#ac522bc5
Content hash: ac522bc5
Source: https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Core.pdf#nameddest=SWS_CORE_06571

Status: valid/unmigrated Version: rel:R25-11#5dc73006 Versionshistorie & Revisions (1 transition, 3 revision)

Current State: valid/unmigrated
Reason: mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign: 2026-08-13-status-backfill
Active Version: AUTOSAR/AP/record/SWS_CORE_06571@rel:R25-11#5dc73006

Recorded Revisions (3):

R25-11rel:R25-11#455886dc2026-09-30
R24-11rel:R24-11#ceb8fc942026-10-14
R25-11rel:R25-11#5dc730062026-10-14 active

Date	Actor	Transition	Reason / Rationale	Campaign
2026-08-13	tool	`none` → `valid/unmigrated`	mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record	2026-08-13-status-backfill

函数 operator= [SWS_CORE_06529]

MonotonicBufferResource & operator= (const MonotonicBufferResource &)=delete;

As per corresponding usage in [mem.res.monotonic.buffer]

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource

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Record: AUTOSAR/AP/record/SWS_CORE_06529
Status: valid/unmigrated
Version: AUTOSAR/AP/record/SWS_CORE_06529@rel:R25-11#c5b42ad1
Content hash: c5b42ad1
Source: https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Core.pdf#nameddest=SWS_CORE_06529

Status: valid/unmigrated Version: rel:R25-11#2502c929 Versionshistorie & Revisions (1 transition, 4 revision)

Current State: valid/unmigrated
Reason: mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign: 2026-08-13-status-backfill
Active Version: AUTOSAR/AP/record/SWS_CORE_06529@rel:R25-11#2502c929

Recorded Revisions (4):

R25-11rel:R25-11#c667aa8a2026-09-30
R23-11rel:R23-11#65eba1772026-10-14
R24-11rel:R24-11#e0f799bc2026-10-14
R25-11rel:R25-11#2502c9292026-10-14 active

Date	Actor	Transition	Reason / Rationale	Campaign
2026-08-13	tool	`none` → `valid/unmigrated`	mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record	2026-08-13-status-backfill

函数 operator= [SWS_CORE_06577] Upstream: RS_AP_00145

MonotonicBufferResource & operator= (MonotonicBufferResource &&other) noexcept=default;

[AUTOSAR defined] not present in ISO-14882. Move assignment operator

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource
Exception-Sicherheit	exception safe

Parameter (in)

Parameter	Beschreibung
other	other MonotonicBufferResource to move from

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Record: AUTOSAR/AP/record/SWS_CORE_06577
Status: valid/unmigrated
Version: AUTOSAR/AP/record/SWS_CORE_06577@rel:R25-11#33670d88
Content hash: 33670d88
Source: https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Core.pdf#nameddest=SWS_CORE_06577

Status: valid/unmigrated Version: rel:R25-11#088d07f5 Versionshistorie & Revisions (1 transition, 3 revision)

Current State: valid/unmigrated
Reason: mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign: 2026-08-13-status-backfill
Active Version: AUTOSAR/AP/record/SWS_CORE_06577@rel:R25-11#088d07f5

Recorded Revisions (3):

R25-11rel:R25-11#3aca8c882026-09-30
R24-11rel:R24-11#e89e6dab2026-10-14
R25-11rel:R25-11#088d07f52026-10-14 active

Date	Actor	Transition	Reason / Rationale	Campaign
2026-08-13	tool	`none` → `valid/unmigrated`	mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record	2026-08-13-status-backfill

函数 release [SWS_CORE_06530]

void release () noexcept;

As per corresponding usage in [mem.res.monotonic.buffer] except for the following deviations: 1. The function is noexcept

AI 生成未审核模型： gemini-3.8-flash-medium · 推理强度： medium · 温度：不可控 · 提示词： 082c843665ce 来源未决问题（1）

译自德文指南gemini-3.8-flash-low · 2026-10-13 · 德文原文

类 ara::core::MonotonicBufferResource（[SWS_CORE_06530]）的成员函数 release() 用于释放由缓冲区资源管理的内存。该调用同步进行，不接受任何参数，且不返回任何返回值（void）。

关于错误处理，该函数被声明为 noexcept 并被指定为具有异常安全性（exception safe）（[SWS_CORE_06530]）。不存在特定的错误代码，也不会向中央诊断或报告实例发送错误消息。

关于并发性，release() 被显式归类为非线程安全（not thread-safe）（[SWS_CORE_06530]）。在没有外部同步的情况下对同一实例进行并发访问是不允许的。解释：由于借鉴了 [mem.res.monotonic.buffer] 的语义，调用该函数可能会使先前通过该资源提供的所有内存区域失效。问题 Q-bd46bd9971926d95 (未决)

在来自 #include "ara/core/memory_resource.h" 的内存资源的交互中，该函数在并发行为上与线程安全的 ara::core::SynchronizedPoolResource::release() 不同（[SWS_CORE_00037]），但与同样非线程安全的 ara::core::UnsynchronizedPoolResource::release() 行为类似（[SWS_CORE_00065]）。

该文本由 AI 基于 AUTOSAR R25-11 的规范要求生成。

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource
Exception-Sicherheit	exception safe
Thread-Sicherheit	not thread-safe

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Record: AUTOSAR/AP/record/SWS_CORE_06530
Status: valid/unmigrated
Version: AUTOSAR/AP/record/SWS_CORE_06530@rel:R25-11#ed00b297
Content hash: ed00b297
Source: https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Core.pdf#nameddest=SWS_CORE_06530

Status: valid/unmigrated Version: rel:R25-11#69f783e0 Versionshistorie & Revisions (1 transition, 4 revision)

Current State: valid/unmigrated
Reason: mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign: 2026-08-13-status-backfill
Active Version: AUTOSAR/AP/record/SWS_CORE_06530@rel:R25-11#69f783e0

Recorded Revisions (4):

R25-11rel:R25-11#819676212026-09-30
R23-11rel:R23-11#691b1b062026-10-14
R24-11rel:R24-11#83f3869e2026-10-14
R25-11rel:R25-11#69f783e02026-10-14 active

Date	Actor	Transition	Reason / Rationale	Campaign
2026-08-13	tool	`none` → `valid/unmigrated`	mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record	2026-08-13-status-backfill

函数 upstream_resource [SWS_CORE_06531]

MemoryResource * upstream_resource () const noexcept;

As per corresponding usage in [mem.res.monotonic.buffer] except for the following deviations: 1. The function is noexcept

AI 生成未审核模型： gemini-3.8-flash-medium · 推理强度： medium · 温度：不可控 · 提示词： 34a11a1fee7a 来源未决问题（1）

译自德文指南gemini-3.8-flash-low · 2026-10-13 · 德文原文

类 ara::core::MonotonicBufferResource 的成员函数 upstream_resource() 同步返回指向类型为 MemoryResource* 的上级内存资源的指针 [SWS_CORE_06531]。该调用通过头文件 #include "ara/core/memory_resource.h" 进行，且不接受任何参数 [SWS_CORE_06531]。解释：如果实例的内部缓冲区不足以进行分配，则返回的内存资源可能会用作上级缓冲区。问题 Q-e01e234e281bc4c6 (未决)

关于错误处理和异常安全性，该方法被声明为 noexcept 且完全具备异常安全性（exception safe）[SWS_CORE_06531]。规范中对于该纯 Getter 调用未定义诸如 DET 或 DEM 之类的特定错误代码、错误对象或诊断消息 [SWS_CORE_06531]。

关于并发性，该方法被指定为 const 以及线程安全（thread-safe）[SWS_CORE_06531]。因此，可以从多个线程并行查询指向 upstream 资源的指针，而无需外部同步。

功能语义遵循 [mem.res.monotonic.buffer] 中的规定，但具有规范性偏差：在 AUTOSAR Adaptive 标准中，该函数被显式定义为 noexcept [SWS_CORE_06531]。相关类 ara::core::SynchronizedPoolResource [SWS_CORE_00038] 以及 ara::core::UnsynchronizedPoolResource [SWS_CORE_00056] 也使用类似的接口模式来提供上级资源。

该文本由 AI 基于规范数据创建。

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource
Exception-Sicherheit	exception safe
Thread-Sicherheit	thread-safe

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Record: AUTOSAR/AP/record/SWS_CORE_06531
Status: valid/unmigrated
Version: AUTOSAR/AP/record/SWS_CORE_06531@rel:R25-11#9da84938
Content hash: 9da84938
Source: https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Core.pdf#nameddest=SWS_CORE_06531

Status: valid/unmigrated Version: rel:R25-11#c0075ddb Versionshistorie & Revisions (1 transition, 4 revision)

Current State: valid/unmigrated
Reason: mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign: 2026-08-13-status-backfill
Active Version: AUTOSAR/AP/record/SWS_CORE_06531@rel:R25-11#c0075ddb

Recorded Revisions (4):

R25-11rel:R25-11#6499d8ca2026-09-30
R23-11rel:R23-11#ae18043d2026-10-14
R24-11rel:R24-11#888f90212026-10-14
R25-11rel:R25-11#c0075ddb2026-10-14 active

Date	Actor	Transition	Reason / Rationale	Campaign
2026-08-13	tool	`none` → `valid/unmigrated`	mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record	2026-08-13-status-backfill

函数 ~MonotonicBufferResource [SWS_CORE_06528]

~MonotonicBufferResource () noexcept override;

As per corresponding usage in [mem.res.monotonic.buffer] except for the following deviations: 1. The function is noexcept 2. The function is not virtual

Header-Datei	#include "ara/core/memory_resource.h"
Scope	class ara::core::MonotonicBufferResource
Exception-Sicherheit	exception safe
Thread-Sicherheit	not thread-safe

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Record: AUTOSAR/AP/record/SWS_CORE_06528
Status: valid/unmigrated
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Content hash: 7a6a3fcb
Source: https://www.autosar.org/fileadmin/standards/R25-11/AP/AUTOSAR_AP_SWS_Core.pdf#nameddest=SWS_CORE_06528

Status: valid/unmigrated Version: rel:R25-11#cb9c3608 Versionshistorie & Revisions (1 transition, 4 revision)

Current State: valid/unmigrated
Reason: mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record
Campaign: 2026-08-13-status-backfill
Active Version: AUTOSAR/AP/record/SWS_CORE_06528@rel:R25-11#cb9c3608

Recorded Revisions (4):

R25-11rel:R25-11#91d465f22026-09-30
R23-11rel:R23-11#6339e5982026-10-14
R24-11rel:R24-11#e078b9482026-10-14
R25-11rel:R25-11#cb9c36082026-10-14 active

Date	Actor	Transition	Reason / Rationale	Campaign
2026-08-13	tool	`none` → `valid/unmigrated`	mechanically backfilled by migriere_status_backfill.py -- no per-field curation history exists yet for this record	2026-08-13-status-backfill

类 ara::core::MonotonicBufferResource

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函数 MonotonicBufferResource [SWS_CORE_06521]

Recorded Revisions (4):

Requirement Text as-of this release:

Curation Decisions:

Reachable Artifacts & Dependents:

函数 MonotonicBufferResource [SWS_CORE_06522]

Recorded Revisions (4):

Requirement Text as-of this release:

Curation Decisions:

Reachable Artifacts & Dependents:

函数 MonotonicBufferResource [SWS_CORE_06523]

Recorded Revisions (4):

Requirement Text as-of this release:

Curation Decisions:

Reachable Artifacts & Dependents:

函数 MonotonicBufferResource [SWS_CORE_06524]

Recorded Revisions (4):

Requirement Text as-of this release:

Curation Decisions:

Reachable Artifacts & Dependents:

函数 MonotonicBufferResource [SWS_CORE_06525]

Recorded Revisions (4):

Requirement Text as-of this release:

Curation Decisions:

Reachable Artifacts & Dependents:

函数 MonotonicBufferResource [SWS_CORE_06526]

Recorded Revisions (4):

Requirement Text as-of this release:

Curation Decisions:

Reachable Artifacts & Dependents:

函数 MonotonicBufferResource [SWS_CORE_06527]

Recorded Revisions (4):

Requirement Text as-of this release:

Curation Decisions:

Reachable Artifacts & Dependents:

函数 MonotonicBufferResource [SWS_CORE_06576] Upstream: RS_AP_00145

Parameter (in)

Recorded Revisions (3):

Requirement Text as-of this release:

Curation Decisions:

Reachable Artifacts & Dependents:

函数 do_allocate [SWS_CORE_06569]

使用

错误处理与异常安全性

并发性与交互

Rückgabewert

Recorded Revisions (3):

Requirement Text as-of this release:

Curation Decisions:

Reachable Artifacts & Dependents:

函数 do_deallocate [SWS_CORE_06570]

使用

错误处理

并发性与限制

相互作用

Recorded Revisions (3):

Requirement Text as-of this release:

Curation Decisions:

Reachable Artifacts & Dependents:

函数 do_is_equal [SWS_CORE_06571]

用法与语义

错误处理与并发

相互作用

Recorded Revisions (3):