July 2008
Intermediate to advanced
544 pages
16h 52m
English
Content preview from Computers as Components, 2nd Edition
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326 CHAPTER 6 Processes and Operating Systems
CPU
Write
Bus
I/O device
Read
Shared
location
Memory
FIGURE 6.14
Shared memory communication implemented on a bus.
In general, a process can send a communication in one of two ways: blocking
or nonblocking. After sending a blocking communication, the process goes into
the waiting state until it receives a response. Nonblocking communication allows
the process to continue execution after sending the communication. Both types of
communication are useful.
There are two major styles of interprocess communication: shared memory
and message passing. The two are logically equivalent—given one, you can build
an interface ...