11. Overview and Syntax of sigactionWhat is the sigaction function and how does it provide more control over signal handling compared to the signal function? Describe its syntax and the purpose of it…
10. Practical Example of Signal BlockingWalk through the example program that blocks the SIGINT signal for 10 seconds and then unblocks it. Explain the steps involved in setting up the signal handler…
9. Blocking Signals in Critical SectionsWhy is it important to block signals in critical sections of code? Provide an example of how to block SIGINT during a critical section to ensure the integrity …
8. Using sigprocmask for Signal BlockingExplain the purpose of the sigprocmask function in Unix-like operating systems. Describe its syntax and how it can be used to block and unblock signals, provid…
7. Critical Section and Pending SignalsExplain the concept of a critical section in the context of signal handling. How does the example program ensure that SIGINT is not delivered during the critica…
6. Example of Inspecting Pending SignalsDescribe the steps involved in the example program that inspects pending signals using sigpending. How does the program block SIGINT, check if it is pending, a…
5. Purpose and Usage of sigpendingWhat is the purpose of the sigpending function in Linux, and how is it used? Provide a brief explanation and describe its syntax.
4. Manipulating Signal SetsDiscuss the functions sigemptyset, sigfillset, sigaddset, sigdelset, and sigismember used for manipulating signal sets in Linux. Provide examples demonstrating the initiali…
3. Checking Pending SignalsExplain how the sigpending function is used to examine pending signals in a process. Provide an example that checks if SIGINT is pending and prints a message accordingly.
2. Understanding sigprocmaskDescribe the purpose of the sigprocmask function in Linux signal handling. Explain the different ways it can modify the signal mask and provide an example of its usage to …
1. Signal Management in the KernelExplain the process by which the Linux kernel handles a blocked signal from arrival to unblocking. Include in your explanation the roles of sigset_t, sigpending, and…
12. Fields of struct sigactionExplain the struct sigaction structure used in the sigaction function. What are the roles of its fields such as sa_handler, sa_sigaction, sa_mask, sa_flags, and sa_resto…
13. Example of Setting Up a Signal HandlerWalk through the example program that sets up a signal handler for SIGINT using sigaction. How is the signal handler function defined and registered, and wha…
14. Blocking Signals During Handler ExecutionHow can you block signals while a signal handler is executing in Linux? Explain the role of the sa_mask field in the sigaction structure and provide an ex…
15. Using Flags in sigactionWhat are some common flags used in the sa_flags field of the sigaction structure? Describe the SA_RESTART and SA_SIGINFO flags and provide examples of how each flag modifi…
16. Handling Real-time SignalsWhat are real-time signals in Linux and how do they differ from standard signals? Provide an example of setting up a signal handler for a real-time signal using sigactio…
17. Concept of Signal MaskingWhat is signal masking in Linux, and why is it important? Explain the concept of a signal mask and how it helps in ensuring the integrity of critical sections of code.
18. Functions for Manipulating Signal SetsDescribe the functions used for manipulating signal sets in Linux. How do sigemptyset, sigfillset, sigaddset, sigdelset, and sigismember work, and what are t…
19. Using sigprocmask and sigsuspendExplain the sigprocmask and sigsuspend functions in Linux. Provide examples of their usage in blocking signals and waiting for signals, respectively. How do these …
20. Understanding SA_SIGINFOWhat is the purpose of the SA_SIGINFO flag in the sigaction structure? How does setting this flag change the behavior of signal handling in Linux?
21. Structure and Parameters of Extended Signal HandlerDescribe the structure and parameters of an extended signal handler function used with SA_SIGINFO. What information can be accessed through the …
22. Example of Handling Signals with Extended InformationExplain the process of setting up and using the SA_SIGINFO flag with sigaction to handle signals. Provide an example of handling the SIGINT si…