Difference between revisions of "Uno/Binary/Spec/Threading-Model"

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version: {{REVISIONID}} <br>
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Type: Specification  State: Evolving Availability: URE 1.3
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state:   draft          <br>
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type:    specification <br>
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== Threading Model ==
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The refined specification of the [[Uno/Spec/Threading-Model|abstract threading-model]] for the [[Uno/Binary|Binary Uno]] runtime.
  
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;Feature
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==Description==
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: The [[Uno/Spec/Threading Model]] for the Binary UNO runtime.
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Support threading type specific purpose environments.
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:
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: Support threading type specific compilation. The following new defines select the threading type for binary UNO:
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:* <code>UNO_THREAD_SAFE</code>
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:* <code>UNO_THREAD_UNSAFE</code>
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:* <code>UNO_THREAD_AFFINE</code>
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:
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: Services / Client code compiled with one of these defines lifes in the associated environment. Not defining one of these defines, lets binary UNO fall back to <code>CPPU_THREAD_SAFE</code>, and gives a warning. This is compatible with the original behaviour.
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: The Associated environments are:
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==API==
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:* <code>UNO_THREAD_SAFE  </code> => <code>"<ABI>"</code>
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* [[Uno/Binary/Spec/Environment Stack]]
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:* <code>UNO_THREAD_UNSAFE</code> => <code>"<ABI>:unsafe"</code>
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* [[Uno/Binary/Spec/Cascaded Mapping]]
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:* <code>UNO_THREAD_AFFINE</code> => <code>"<ABI>:affine"</code>, see [[Uno/Binary/Spec/Thread Affinity Bridge]] for details.
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* [[Uno/Binary/Spec/Environment Descriptor]]
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* [[Uno/Binary/Spec/Environment Substitution]]
  
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: Threading model specific environments are backed by the appropriate purpose environments.
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Threading-model specific environments are backed by the appropriate purpose environments.
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:* <code>"<ABI>:unsafe" </code> is backed by the default [[Uno/Binary/Spec/Thread Unsafety Bridge]].
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* <code>"<OBI>"       </code> is backed by the default pure [[Uno/Term/Object Binary Interface|OBI]] environment (as usual).
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:* <code>"<ABI>"       </code> is backed by the default thread safe environment (as usual).
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* <code>"<OBI>:unsafe"</code> is backed by the default [[Uno/Binary/Spec/Thread Unsafety Bridge]].
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:* <code>"<ABI>:thread"</code> is backed by the default is backed by the default [[Uno/Binary/Spec/Thread Affinity Bridge]].
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* <code>"<OBI>:affine"</code> is backed by the default [[Uno/Binary/Spec/Thread Affinity Bridge]].
  
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: The UNO Threading Model specification for Binary UNO is the sum of the specifications for the parts, see below for details.
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==Dependencies==
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* [[Uno/Binary/Spec/Environment Stack]]
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* [[Uno/Binary/Spec/Cascaded Mapping]]
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* [[Uno/Binary/Spec/Environment Descriptor]]
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* [[Uno/Binary/Spec/Environment Substitution]]
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* [[Uno/Binary/Spec/Thread Unsafety Bridge]]
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* [[Uno/Binary/Spec/Thread Affinity Bridge]]
  
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; Rationale
 
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: The current threading related code quality of OOo has proven, the doing proper multi threading programming is not easy. Even seemingly simple things, as thread safeness, seem to be unreachable. Therefor UNO programming must be as simple as possible in respect to multi threading programming.
 
  
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; API Extensions:
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[[Category:Spec]]
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:* Environment Guards
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[[Category:Uno]]
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:* Environment Aware References
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[[Category:Uno:Binary]]
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:* Environment Stacks
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[[Category:Draft]]
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:* Cascaded Mappings
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[[Category:Multi-Threading]]
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:* Purpose Environments
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; Dependencies:
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:* Environment Guards
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:* Environment Aware References
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:* Environment Stacks
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:* Cascaded Mappings
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:* Purpose Environments
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; Compatibility Issues:
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:* Environment Guards
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:* Environment Aware References
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:* Environment Stacks
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:* Cascaded Mappings
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:* Purpose Environments
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−
 
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[[Category:Uno:Spec:Binary]]
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Latest revision as of 07:07, 19 June 2007

Type: Specification State: Evolving Availability: URE 1.3

The refined specification of the abstract threading-model for the Binary Uno runtime.

Description

Support threading type specific purpose environments.

API

Threading-model specific environments are backed by the appropriate purpose environments.

Dependencies

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