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Auxiliary Messages
Communicating with Simulators
Description
SESDLSIGNAL is sent by an SDL simulator when it sends an SDL signal to its SDL environment. Other simulators (or any applications connected to the PostMaster) can then receive the message and send back messages of the same type.
The PIds consist of a UNIX PId (on UNIX), or an identifier "pid" known by the PostMaster (in Windows), in both cases an integer, and an SDL process instance number (a hex number), which normally is used only in comparisons. The PIds may be used to uniquely identify a single receiver if several receivers exist, but can be ignored if only two tools are communicating
Tools Issuing and Recognizing the Message
SET_SDLENVMessage
SESDLSIGNAL
signalName integer globalReceiverPid integer localReceiverPid string globalSenderPid integer localsenderPid string signalParam stringPostMaster Operation Failed
Description
SEOPFAILED is sent by the PostMaster when an internal problem inhibited a message to be handled properly. Three major categories of errors exists:
- Communication error, i.e. the underlying network (e.g. UNIX socket) reported an error
- An explicit address did not exist
- An operation requested from the PostMaster failed.
Tools Issuing and Recognizing the Message
SET_POSTMessage
SEOPFAILED
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