TAO_RTEvent  2.0.8
Classes | Typedefs | Enumerations
RtecBase Namespace Reference

Define types shared by the real-time scheduling and event services. More...

Classes

struct  Dependency_Info
 Define dependencies between two RT_Infos. More...

Typedefs

typedef long handle_t
 Provide a fast, low-footprint identifier for RT_Infos.
typedef long OS_Priority
 Helper typedef to define the OS priority.
typedef long Preemption_Priority_t
 Helper typedef to define the OS-independent priority.
typedef long Preemption_Subpriority_t
 Helper typedef to define the OS-independent sub-priority.

Enumerations

enum  Dependency_Type_t { ONE_WAY_CALL, TWO_WAY_CALL }
 Specify type of call. More...
enum  Dependency_Enabled_Type_t { DEPENDENCY_DISABLED, DEPENDENCY_ENABLED, DEPENDENCY_NON_VOLATILE }

Detailed Description

Define types shared by the real-time scheduling and event services.

These types are defined in a separate module to decouple the real-time event services from the scheduling service interface (and implementation!)


Typedef Documentation

typedef long RtecBase::handle_t

Provide a fast, low-footprint identifier for RT_Infos.

The Event and Scheduling Service need to communicate information about RT_Infos (descriptions about the scheduling properties of a simple operation). On a centralized application one would use pointers for such a task, but obviously that does not work on a distributed system. It is tempting to use object references to identify each RT_Info, but that does not work either: first the *contents* of the RT_Info must be transmitted between applications, and object references are not good identifiers (due to the semantics of _is_equivalent())

The handle_t type is used to generate unique identifiers on the scheduling service, the Event Service can then refer to any RT_Info using either their name or the quicker handle_t.

typedef long RtecBase::OS_Priority

Helper typedef to define the OS priority.

Helper typedef to define the OS-independent priority.

Helper typedef to define the OS-independent sub-priority.


Enumeration Type Documentation

Enumerator:
DEPENDENCY_DISABLED 
DEPENDENCY_ENABLED 
DEPENDENCY_NON_VOLATILE 

Specify type of call.

Enumerator:
ONE_WAY_CALL 

One-way call.

TWO_WAY_CALL 

Two-way call.

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