IOInterruptEventSource
IOInterruptEventSource is a class found in various operating system kernels and frameworks, particularly those related to input/output and device management. Its primary purpose is to represent and manage interrupt events generated by hardware devices. When a hardware device requires attention from the CPU, it typically asserts an interrupt line. This interrupt signal is then handled by the operating system's interrupt handling mechanism.
An IOInterruptEventSource acts as an abstraction layer for these hardware interrupts. It allows the system to
This mechanism is crucial for efficient device operation. It enables devices to signal the CPU only when