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Dialogic

System Release 6.1 CompactPCI for Windows

Release Update 94

dx_resetch( )

 Description

The dx_resetch( ) function recovers a channel that is “stuck” (busy or hung) and in a recoverable

state, and brings it to an idle and usable state. This function blocks all other functions from

operating on the channel until the function completes.

In synchronous mode, 0 is returned if the function completes successfully, and -1 is returned in

case of error.

In asynchronous mode, the TDX_RESET event is generated to indicate that the channel was

recovered and is in an idle and usable state. The TDX_RESETERR event is generated to indicate

that the channel is not recoverable. Issuing any other media calls on this channel will result in an

error.

 Cautions

• The dx_resetch( ) function is intended for use on channels that are stuck and not responding.

Do not use it in place of dx_stopch( ). Use dx_resetch( ) only if you do not receive an event

within 30 seconds of when it’s expected. Overuse of this function creates unnecessary

overhead and may affect system performance.

Name: dx_resetch (chdev, mode)

Inputs: int chdev

• valid channel device handle

int mode

• mode of operation

Returns: 0 if success

-1 if failure

Includes: srllib.h

dxxxlib.h

Category: I/O

Mode: asynchronous or synchronous

Platform: DM3

Parameter Description

chdev Specifies the valid device handle obtained when the channel was opened

using dx_open( )

mode Specifies the mode of operation:

• EV_ASYNC – asynchronous mode. The calling thread returns

immediately so it can process media functionality on other channels.

• EV_SYNC – synchronous mode. The calling thread waits until the

channel is recovered or discovers that the channel is not in a

recoverable state.

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Advantech MIC-3369C Guida di Installazione Pagina 94