hazard pointer synchronous reclamation
reclaimed as long as the hazard pointer remains unchanged. *A Hazard Pointer Synchronous Reclamation Beyond Concurrency TS2 – Maged Michael Protector Remover / Reclaimer Hazard pointers protect(const std::atomic& src) noexcept; }; hazard_pointer make_hazard_pointer(); Hazard Pointer Synchronous Reclamation Beyond Concurrency TS2 – Maged Michael See N4895 (wg21.link/n4895) for working draft exchange(newptr); oldptr->retire(); } Shared data, frequently-used, infrequently-updated Hazard Pointer Synchronous Reclamation Beyond Concurrency TS2 – Maged Michael Why use hazard pointers? • Fast (low nanoseconds) 0 码力 | 31 页 | 856.38 KB | 5 月前3Node.js Manual & Documentation
require('util') to access them. 下列函数属于'util'(工具)模块,可使用 require('util')访问它们。 util.debug(string) A synchronous output function. Will block the process and output string immediately to stderr. 这是一个同步输出函数,将 POSIX functions. To use this module do require('fs'). All the methods have asynchronous and synchronous forms. 文件的 I/O 是由标准 POSIX 函数封装而成。需要使用 require('fs')访问这个 模块。所有的方法都提供了异步和同步两种方式。 The asynchronous if (err) throw err; console.log('successfully deleted /tmp/hello'); }); Here is the synchronous version: 这里是进行相同操作的同步调用的例子: var fs = require('fs'); fs.unlinkSync('/tmp/hello') console0 码力 | 153 页 | 1.21 MB | 1 年前3Spanny 2: Rise of std::mdspan
robot arm to bin position and reads state via serial port 92github.com/griswaldbrooks/spanny2 synchronous single arm control templatestruct bin_checker_t { using element_type = (*checker_)(goal); } private: Arbiter* checker_; }; 93github.com/griswaldbrooks/spanny2 synchronous single arm control template struct bin_checker_t { using element_type = (*checker_)(goal); } private: Arbiter* checker_; }; 94 not relatedgithub.com/griswaldbrooks/spanny2 synchronous single arm control template struct bin_checker_t { using element_type = 0 码力 | 117 页 | 2.02 MB | 5 月前3Interesting Upcoming Features from Low Latency, Parallelism and Concurrency
for a future talk) ● Execution of Asynchronous Reclamation Proposed standard extensions: ● Synchronous reclamation ● Batch creation and destruction P3135R1: Hazard Pointer Extensions (beyond C++26) obj->retire(); }); // No inline reclamation. }Hazard Pointer Synchronous ReclamationC++26 (Asynchronous Reclamation Only) Hazard Pointer Synchronous Reclamation templateclass Container { class Obj containing 'b' may be not deleted yet. destroy_resource_XYZ(); Need Synchronous Reclamation ERROR OKHazard Pointer Synchronous Reclamation Cohorts: class hazard_pointer_cohort { hazard_pointer_cohort() 0 码力 | 56 页 | 514.85 KB | 5 月前3CppCon2021 Concurrency TS2
~hazard_pointer_domain(); }; hazard_pointer_domain& hazard_pointer_default_domain() noexcept; // For synchronous reclamation void hazard_pointer_clean_up( hazard_pointer_domain& domain = hazard_pointer_default_domain()) synchronization/Hazptr.h • Synchronous reclamation: • TS2 global cleanup is a powerful but blunt tool. • Folly (fast and scalable) cohort synchronous reclamation. • CPPCON 2021: Hazard pointer synchronous reclamation automatic retirement • Strict subset of TS2 API and wording • No custom domains (for now) • No synchronous reclamation (for now) • Can be extended 25 © 2021. 26 Hazard Pointers Proposal for C++26 class0 码力 | 58 页 | 1.62 MB | 5 月前0.03Boosting Software Efficiency
issue on your system. How would you solve it? 89SOLVE ⊡ Changed from asynchronous work to synchronous work. ⊡ Split large messages into smaller ones. ⊡ Rewrote the message preparation function Asynchronous to synchronous 92 5MB+5MB 5MB93 So, I am not crashing anymore. Can I stop here?SOLVE 94 7500 meters and not just 5000 No!SOLVE ⊡ Asynchronous to synchronous 95 5MB+5MB meters the unit listened to. 97 5000 1000 5MB 1MBSOLVE ⊡ Changed from asynchronous work to synchronous work. ⊡ Split large messages into smaller ones. ⊡ Rewrote the message preparation function0 码力 | 180 页 | 1.65 MB | 5 月前3Falcon v3.0.0-b2 Documentation
introduce the terminology used by the framework. Note: This tutorial covers the “traditional”, synchronous flavor of Falcon using the WSGI protocol. Developing an async application? Check out our ASGI routing, middleware, executing synchronous functions in an executor, and more! Note: This tutorial covers the asynchronous flavor of Falcon using the ASGI protocol. Synchronous (WSGI) Falcon application development (responders, middleware, hooks etc.) of a Falcon ASGI application, field converters are simple synchronous data transformation functions that are not expected to perform any I/O. Running Our Application0 码力 | 340 页 | 1.15 MB | 1 年前3Falcon v3.0.0 Documentation
introduce the terminology used by the framework. Note: This tutorial covers the “traditional”, synchronous flavor of Falcon using the WSGI protocol. Developing an async application? Check out our ASGI routing, middleware, executing synchronous functions in an executor, and more! Note: This tutorial covers the asynchronous flavor of Falcon using the ASGI protocol. Synchronous (WSGI) Falcon application development (responders, middleware, hooks etc.) of a Falcon ASGI application, field converters are simple synchronous data transformation functions that are not expected to perform any I/O. Running Our Application0 码力 | 344 页 | 1.16 MB | 1 年前3Falcon v3.0.1 Documentation
introduce the terminology used by the framework. Note: This tutorial covers the “traditional”, synchronous flavor of Falcon using the WSGI protocol. Developing an async application? Check out our ASGI routing, middleware, executing synchronous functions in an executor, and more! Note: This tutorial covers the asynchronous flavor of Falcon using the ASGI protocol. Synchronous (WSGI) Falcon application development (responders, middleware, hooks etc.) of a Falcon ASGI application, field converters are simple synchronous data transformation functions that are not expected to perform any I/O. Running Our Application0 码力 | 344 页 | 1.16 MB | 1 年前3Falcon v3.0.0 Documentation
introduce the terminology used by the framework. Note This tutorial covers the “traditional”, synchronous flavor of Falcon using the WSGI [https://www.python.org/dev/peps/pep-3333/] protocol. Developing executing synchronous functions in an executor, and more! Note This tutorial covers the asynchronous flavor of Falcon using the ASGI [https://asgi.readthedocs.io/en/latest/] protocol. Synchronous (WSGI (responders, middleware, hooks etc.) of a Falcon ASGI application, field converters are simple synchronous data transformation functions that are not expected to perform any I/O. Running Our Application0 码力 | 1055 页 | 739.30 KB | 1 年前3
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