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Concurrency
Synchronization
Threads communicate primarily by sharing access to fields and the
objects reference fields refer to. This form of communication is
extremely efficient, but makes two kinds of errors possible: thread
interference and memory consistency errors. The tool
needed to prevent these errors is synchronization.
- Thread Interference describes how errors
are introduced when multiple threads access shared data.
- Memory Consistency Errors
describes errors that result from inconsistent views of shared
memory.
- Synchronized Methods describes a
simple idiom that can effectively prevent thread interference and
memory consistency errors.
- Implicit Locks and Synchronization
describes a more general synchronization idiom, and describes how
synchronization is based on implicit locks.
- Atomic Access talks about the general
idea of operations that can't be interfered with by other threads.