Final Answer:
To ensure difficulties do not arise in the readers-writers problem, b) writers are given exclusive access to the shared object.
Step-by-step explanation:
In the context of the readers-writers problem, the correct approach to prevent difficulties is to give exclusive access to the shared object to the writers (option b). This design choice is based on the principle that while a writer is updating or modifying the shared data, it is essential to prevent any concurrent access by readers. Allowing multiple readers to access the shared object simultaneously can lead to inconsistencies or errors, making it crucial to restrict access during write operations.
The readers-writers problem is a classic synchronization issue in computer science, where multiple threads (readers and writers) access a shared resource concurrently. In this scenario, readers (option a) can be allowed to access the shared object simultaneously because reading doesn't modify the data. However, during a write operation, exclusive access is necessary to maintain data integrity. Therefore, the correct choice is to give exclusive access to writers to ensure that modifications are performed in a controlled and synchronized manner.
The selection of option b aligns with best practices in concurrency control and is a key consideration in designing systems that involve shared resources. By allowing exclusive access to writers during critical sections, potential issues related to data consistency and integrity are mitigated, ensuring a more robust and reliable implementation of the readers-writers problem