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https://stackoverflow.com/questions/1485924/how-are-mutexes-implemented
How are mutexes implemented? Ask Question ... in asm that does most of the important stuff except fall back to sleeping in a system call after spinning for a while without getting ... Wikipedia page that I've linked to explains more about the internal logic and possible implementations. Preferably, a mutex is controlled by the hardware, ...
https://softwareengineering.stackexchange.com/questions/228827/is-it-possible-to-perform-mutual-exclusion-of-threads-without-os-support
Generally speaking high level languages do not support this construct -- mostly because it varies wildly depending on hardware instruction set. If you code in C and know your hardware architecture you could roll your own mutex library but it would be impossible in a higher level language.
https://en.wikipedia.org/wiki/Mutual_exclusion
Enforcing mutual exclusion Hardware solutions. On uniprocessor systems, the simplest solution to achieve mutual exclusion is to disable interrupts during a process's critical section. This will prevent any interrupt service routines from running (effectively preventing a process from being preempted). Although this solution is effective, it ...
https://en.cppreference.com/w/cpp/thread/unique_lock/unlock
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http://en.cppreference.com/w/cpp/thread/mutex
The mutex class is a synchronization primitive that can be used to protect shared data from being simultaneously accessed by multiple threads. mutex offers exclusive, non-recursive ownership semantics: A calling thread owns a mutex from the time that it successfully calls either lock or try_lock until it calls unlock.
https://en.cppreference.com/w/cpp/thread/shared_mutex
The shared_mutex class is a synchronization primitive that can be used to protect shared data from being simultaneously accessed by multiple threads. In contrast to other mutex types which facilitate exclusive access, a shared_mutex has two levels of access: shared - several threads can share ownership of the same mutex.; exclusive - only one thread can own the mutex.
https://docs.microsoft.com/en-us/dotnet/standard/threading/mutexes
Named system mutexes are visible throughout the operating system and can be used to synchronize the activities of processes. You can create multiple Mutex objects that represent the same named system mutex, and you can use the OpenExisting method to open an existing named system mutex. A local mutex exists only within your process.
https://docs.microsoft.com/en-us/cpp/standard-library/shared-mutex
Shared mutexes can be used to control resources that can be read by several threads without causing a race condition, but must be written exclusively by a single thread. The header <shared_mutex> defines the classes shared_mutex and shared_timed_mutex, the class template shared_lock, and the template function swap for shared mutex support.
https://freefeast.info/general-it-articles/difference-between-mutex-and-semaphore/
Oct 02, 2019 · To properly understand the difference between mutex and semaphore, you must first be familiar with how operating systems function. Understanding the underlying mechanisms on which an operating system relies is integral to understanding the more …
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