43.4. Comparing IPC Facilities

When it comes to IPC, we face a range of choices that can at first seem bewildering. In later chapters that describe each IPC facility, we include sections that compare each facility against other similar facilities. In the following pages, we consider a number of general points that may determine the choice of IPC facility.

43.4.1.

43.4.1.1. IPC object identification and handles for open objects

In order to access an IPC object, a process must have some means of identifying the object, and once the object has been “opened,” the process must use some type of handle to refer to the open object. Table 43-1 summarizes these properties for the various types of IPC facilities.