shared memory mutex
Sorry, but you are out of luck. Pthreads library does not have a concept of 'named' mutex, so two independent processes can't reliably share ..., You need to tell the mutex to be process-shared when it's inited:., A mutex is a threading construct -- it is for synchronizing data access between threads (which are part of a single process), not between separate ..., You need to be careful here, not all implementations support mutexes that can work across processes. PThreads itself supports this by use of ..., If you're working in Linux or something similar, consider using named semaphores instead of (what I assume are) pthreads mutexes. I don't ...,typedef struct shared_mutex_t pthread_mutex_t *ptr; // Pointer to the pthread mutex and // shared memory segment. int shm_fd; // Descriptor of shared memory ... , An std::mutex instance is only scoped to a single process; it is not capable of interprocess synchronization/concurrency. It is only capable of ..., For example, with POSIX shm_open() shared memory regions, you can have the processes try to open the region with the O_CREAT and ..., 參與古老系統的搬遷工程，其中使用Shared Memory 實現跨Process ... Shared Memory，在各種IPC 方法中效能最佳，但必須透過Mutex 等同步機制 ...
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 shared memory mutex 相關參考資料
C Mutex lock on shared memory accessed by multiple ...
Sorry, but you are out of luck. Pthreads library does not have a concept of 'named' mutex, so two independent processes can't reliably share ... https://stackoverflow.com Do pthread mutexes work across threads if in shared memory ...
You need to tell the mutex to be process-shared when it's inited:. https://stackoverflow.com how to Apply Mutex Lock on Shared Memory - C Board
A mutex is a threading construct -- it is for synchronizing data access between threads (which are part of a single process), not between separate ... https://cboard.cprogramming.co Initializing a pthread mutex in shared memory - Stack Overflow
You need to be careful here, not all implementations support mutexes that can work across processes. PThreads itself supports this by use of ... https://stackoverflow.com Mutex in shared memory when one user crashes? - Stack ...
If you're working in Linux or something similar, consider using named semaphores instead of (what I assume are) pthreads mutexes. I don't ... https://stackoverflow.com Shared (interprocess) mutexes on Linux · GitHub
typedef struct shared_mutex_t pthread_mutex_t *ptr; // Pointer to the pthread mutex and // shared memory segment. int shm_fd; // Descriptor of shared memory ... https://gist.github.com std::mutex in shared memory not working - Stack Overflow
An std::mutex instance is only scoped to a single process; it is not capable of interprocess synchronization/concurrency. It is only capable of ... https://stackoverflow.com Using pthread mutex shared between processes correctly ...
For example, with POSIX shm_open() shared memory regions, you can have the processes try to open the region with the O_CREAT and ... https://stackoverflow.com 關於Shared Memory 的兩三事-黑暗執行緒
參與古老系統的搬遷工程，其中使用Shared Memory 實現跨Process ... Shared Memory，在各種IPC 方法中效能最佳，但必須透過Mutex 等同步機制 ... https://blog.darkthread.net |