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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.
Kernel threads are preemptively multitasked if the operating system's process scheduler is preemptive. Kernel threads do not own resources except for a stack, a copy of the registers including the program counter, and thread-local storage (if any), and are thus relatively cheap to create and destroy. Thread switching is also relatively cheap ...
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 ...
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TLS—Thread-Local Storage; TLS—Transport Layer Security; TLV—Type—length—value; tmp—temporary; TNC—Terminal Node Controller; TNC—Threaded Neill-Concelman connector; TPF—Transaction Processing Facility; TPM—Trusted Platform Module; TROFF—Trace Off; TRON—Trace On; TRON—The Real-time Operating system Nucleus
At its core, the PE format is a structured data container that gives the Windows operating system loader everything it needs to properly manage the executable code it contains. This includes references for dynamically linked libraries, tables for importing and exporting APIs, resource management data and thread-local storage (TLS) information.
Code for a simple model implementation of a storage manager for Unix was given with alloc and free as the user interface functions, and using the sbrk system call to request memory from the operating system. [6] The 6th Edition Unix documentation gives alloc and free as the low-level memory allocation functions. [7]
The Common Lisp pathname facility is more general than most operating systems' file naming conventions, making Lisp programs' access to files broadly portable across diverse systems. Input and output streams represent sources and sinks of binary or textual data, such as the terminal or open files.