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In computer programming, thread-local storage (TLS) is a memory management method that uses static or global memory local to a thread. The concept allows storage of data that appears to be global in a system with separate threads.
Thread-local storage Variables are localized so that each thread has its own private copy. These variables retain their values across subroutine and other code boundaries and are thread-safe since they are local to each thread, even though the code which accesses them might be executed simultaneously by another thread.
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On Microsoft Windows, fibers are created using the ConvertThreadToFiber and CreateFiber calls; a fiber that is currently suspended may be resumed in any thread. Fiber-local storage, analogous to thread-local storage, may be used to create unique copies of variables. [3] Symbian OS used a similar concept to fibers in its Active Scheduler.
Current Linux also uses GS to point to thread-local storage. Segments can be defined to be either code, data, or system segments. Additional permission bits are present to make segments read only, read/write, execute, etc. In protected mode, code may always modify all segment registers except CS (the code segment selector). This is because the ...
Transport Layer Security, a cryptographic protocol for secure computer network communication; Thread level speculation, an optimisation on multiprocessor CPUs; Thread-local storage, a mechanism for allocating variables in computer science; Transparent LAN Service, a transparent data link connecting remote Ethernet networks
A new thread-local storage duration (in addition to the existing static, dynamic and automatic) is indicated by the storage specifier thread_local. Any object which could have static storage duration (i.e., lifetime spanning the entire execution of the program) may be given thread-local duration instead.
Security policy is a definition of what it means to be secure for a system, organization or other entity. For an organization, it addresses the constraints on behavior of its members as well as constraints imposed on adversaries by mechanisms such as doors, locks, keys , and walls.