Race condition: Difference between revisions
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Languages with built-in threading syntax commonly provide very simple ways to enforce locks. Java provides the ''synchronized'' key word to designate a code block with enforced locking. |
Languages with built-in threading syntax commonly provide very simple ways to enforce locks. Java provides the ''synchronized'' key word to designate a code block with enforced locking. |
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Ada provides ''protected objects'' with locking characteristics based upon the kind of access method described. A protected ''procedure'' enforces a write lock, allowing unconditional access to the object by only a single thread at a time. A protected ''entry'' enforces a write lock, allowing conditional access to the object by one thread at a time. A protected ''function'' provides a shared read lock, allowing multiple read access to the object at the same time. Many locking |
Ada provides ''protected objects'' with locking characteristics based upon the kind of access method described. A protected ''procedure'' enforces a write lock, allowing unconditional access to the object by only a single thread at a time. A protected ''entry'' enforces a write lock, allowing conditional access to the object by one thread at a time. A protected ''function'' provides a shared read lock, allowing multiple read access to the object at the same time. Many locking [http://home.att.net/~jimmaureenrogers/Shared_Resource_Design_Patterns.html patterns] can be defined using these three capabilities. |
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