I have to write program in C on Linux. It has to have 3 processes - first reads from STDIN, sends message through FIFO to second process, which counts lenght of recevied message and sends result to third process (also through FIFO), which displays it on STDOUT. I have to synchronize ...
Any logic flaws can result in deadlock which will stop execution of your program. Instead of the error-prone method of accessing the mutex through multiple function calls, why not let the compiler do the work for you? When C++ objects are created on the stack (automatic variables), the ...
if you find that the program can only work when it is changed to a broadcast signal, it may be that the program is defective. But in some scenarios, like the memory allocation example above, broadcasting may be the most direct and effective...
The code in SEMAPHORE_STATE::Retire only sets TimePoint::completed for the larger value, not for earlier values. This is avoided only if the wait happens after the larger value is signaled, as there's a check against completed_.payload in SEMAPHORE_STATE::Wait. With the changes in this b...
I need to synchronise 3 different scripts to work with one object - to make sure only one script is "active". I wanted to use Semaphores for that, but...How i can move from $bGlobalBusyFlag to Semaphores in :#include <WinAPI.au3> #include <ButtonConstant
In distributed systems, synchronization can be viewed as the problem of placing precedence on the event sequences. Distributed semaphores can be used to do this task. The processes that share the distributed semaphores need to cooperate so they maintain the same semaphore value even the program ...
I don't understand why the program crashes, it make nothing, there are only three tasks and each launches the other between semaphores: task A launches task B that launches task C that launches task A, and so on. After 107 iterations, the program crashes! Translate 0 Kudos Copy link ...
>Particularly you must take into account that C/C++ compiler or hardware can reorder > memory accesses, so that reader threads will see partially-constructed nodes or inconsistent > nodes. Yes. The algorithm is robust enough to accept small errors. The data in the node are results of...
The program implements a user level thread library for Linux in C with pre-emption, locks, conditions, semaphores, scheduler, timers, multi-level priority queue ensuring synchronization in real world programs besides several other features making it a complete autonomous library for thread creation ...
In this case, we use the “SemaphoreSlim” to simulate a single process that has multiple threads. We start by initializing the “SemaphoreSlim” with a count of 2. Hence, only two threads can access the resource concurrently. We then create six tasks and try to access the resource. Since...