IPCEventTranslator Class Reference
#include <EventTranslator.h>
Inheritance diagram for IPCEventTranslator:
Detailed Description
An implementation of EventTranslator which will forward events using the inter-process mechanisms of the current platform.The current implementation creates an RCRegion for each event and then releases its reference to the region after it is sent. A more efficient implementation might retain a queue of recycled RCRegions to reduce allocation costs
Definition at line 128 of file EventTranslator.h.
Public Types | |
| typedef OSubject | IPCSender_t |
| the class for sending IPC messages on aperios | |
Public Member Functions | |
| IPCEventTranslator (IPCSender_t &subj) | |
| constructor | |
| virtual void | encodeEvent (const EventBase &event, bool onlyReady=false) |
| extends base class's implementation to store event.getName() into curName | |
Protected Member Functions | |
| virtual char * | bufferRequest (unsigned int size) |
| Called by encodeEvent() to request a buffer for serializing into, must be at least size. | |
| virtual void | post (const char *buf, unsigned int size, bool onlyReady) |
| Called by encodeEvent() after serialization is complete for communication to other processes. | |
Protected Attributes | |
| IPCSender_t & | subject |
| where to post messages upon serialization, set by constructor | |
| RCRegion * | curRegion |
| the region currently being serialized into, only valid between call to bufferRequest() and following post() | |
| std::string | curName |
| name of current event being posted (for error messages) | |
Private Member Functions | |
| IPCEventTranslator (const IPCEventTranslator &) | |
| don't call | |
| IPCEventTranslator | operator= (const IPCEventTranslator &) |
| don't call | |
Member Function Documentation
| char * IPCEventTranslator::bufferRequest | ( | unsigned int | size | ) | [protected, virtual] |
Called by encodeEvent() to request a buffer for serializing into, must be at least size.
This buffer will then be sent to post(), which should free it (or recycle it for usage by a later bufferRequest())
Implements EventTranslator.
Definition at line 76 of file EventTranslator.cc.
| void IPCEventTranslator::post | ( | const char * | buf, | |
| unsigned int | size, | |||
| bool | onlyReady | |||
| ) | [protected, virtual] |
Called by encodeEvent() after serialization is complete for communication to other processes.
- Parameters:
-
buf the data to be sent, will be a buffer previously requested from bufferRequest size the number of bytes to send onlyReady if true, only send the event to observers which do not have any message backlog (if supported by transfer mechanism)
Implements EventTranslator.
Definition at line 88 of file EventTranslator.cc.
The documentation for this class was generated from the following files:
