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| <== Date ==> | <== Thread ==> |
|---|
| Subject: | Re: [asyn] link already open! |
| From: | Dirk Zimoch <[email protected]> |
| To: | [email protected] |
| Date: | Fri, 09 Aug 2013 11:49:19 +0200 |
On 09.08.2013 11:42, Dirk Zimoch wrote:
On 09.08.2013 11:20, Pavel Maslov wrote:Hello all, When can this message pop up: 2013/08/09 11:03:11.051131 lambda1 lambda-ps:CURR:MAX:RBV: pasynCommon->connect() failed: 127.0.0.1:7001 <http://127.0.0.1:7001>: Link already open! 2013/08/09 11:03:11.052968 lambda1 lambda-ps:CURR:MAX:RBV: Protocol abortedThe message itself looks like coming from StreamDevice. But without more information I cannot say why the connect() call of asyn fails. At least report the port configuration and the protocol.
What StreamDevice does:
pasynManager->isConnected(pasynUser, &connected);
if (!connected)
{
status = pasynCommon->connect(pvtCommon, pasynUser);
if (status != asynSuccess)
{
error("%s: pasynCommon->connect() failed: %s\n",
clientName(), pasynUser->errorMessage);
return false;
}
}
Dear Asyn-experts: Is this wrong?
At least it is a race condition. Is there any atomic way to say "Connect
if not already connected" ?
Dirk