semtimedop - acquire a semaphore in a timed manner
semtimedop() system call is used to acquire a semaphore in an asynchronous
manner with a timeout. It is designed to acquire one or multiple semaphores
atomically. If the specified
timeout is reached, the call will fail with an
EAGAIN error. The return value of the call will contain information about the
number of semaphores actually acquired.
int- ID of the semaphore set.
struct sembuf*- Pointer to an array of
sembufstructs. Each struct contains the index of the semaphore inside the semaphore array and condition of the operation (unlock/lock).
size_t- Size of the array of
const struct timespec*[K, OPT] - Pointer to a timespec struct describing the time duration of the wait.
- K - Originated from kernel-space.
- U - Originated from user space (for example, pointer to user space memory used to get it)
- TOCTOU - Vulnerable to TOCTOU (time of check, time of use)
- OPT - Optional argument - might not always be available (passed with null value)
To monitor the execution of
semtimedop() and modify behavior when needed.
Example Use Case¶
semtimedop() is especially useful when implementing synchronization mechanisms
into a system. These synchronization mechanisms could be related to
multi-threaded application, and the
semtimedop() could be used to allow access
to shared resources in a controlled manner.
At the time of writing, the
timeout argument does not work as expected on all
This document was automatically generated by OpenAI and needs review. It might not be accurate and might contain errors. The authors of Tracee recommend that the user reads the "events.go" source file to understand the events and their arguments better.