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Is the C FIFO lock with mutiple threads safe?
Yes, you’ll be fine/safe. From the first link on Pipes & FIFOs that you provided in the comments: And from the limits.h you linked: Since you’re writing <= 300 bytes, and the POSIX minimum buffer size for an atomic write is 512 bytes, you’re very much in the clear.
Is it possible to lock up a thread in lock free programming?
It is algorithmically impossible for the system to lock up during those operations. One important consequence of lock-free programming is that if you suspend a single thread, it will never prevent other threads from making progress, as a group, through their own lock-free operations.
How can data structures be multi-threaded but also lock-free?
Assuming they haven’t used a performance-hitting modulus trick (i.e. each thread can only insert based upon some modulo) how can data structures be multi-threaded but also lock-free??? This question is intended towards C and C++. The key in lock-free programming is to use hardware-intrinsic atomic operations.
How are lock and monitor used in multithreaded applications?
In C#, we can use lock and Monitor to provide thread safety in a multithreaded application. Both lock and monitor provides a mechanism which ensures that only one thread is executing the critical section code at any given point of time to avoid any functional breaking of code.
Can a mutex be wrapped around a FIFO queue?
Wrapping a mutex or some other form of lock around the FIFO queue is probably the easiest way to guarantee concurrency and atomicity for the environment you describe. If you’ll have multiple processes attempting to write to the queue, then you’ll probably need a dedicated handler for the queue.
How is synchronization handled in a FIFO queue?
Synchronization on writing to the queue is then handled within the FIFO queue process itself. As a rule, unless you have documentation in your hand that declares operation Foo to be thread-safe/atomic/whatever, then assume it isn’t safe. Having “read somewhere …”
Do you need to use FIFO in Linux + C?
I need to use FIFO in my application in linux+C, I have multiple threads and processes, I read some where that writing to a FIFO is atomic below some value (I believe 4k) especially I’m writing max of 300 bytes, Am I safe here? It’s atomic only inasmuch as how you write your FIFO queue/structure.