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Similar TCP/IP retry mechanism for DX Lab as that used on with HRD.

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Assume     the    defect     requiring    occasional     retries    of
QTCPSocket::waitReadReady() is  generic; the  same retry  mechanism as
used in  the HRD interface  has been impelemnted  in the DX  Lab Suite
Commander TCP/IP interface.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@4295 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Bill Somerville 2014-09-10 09:18:32 +00:00
parent 3cfff48079
commit cf0f8e0b95
1 changed files with 39 additions and 7 deletions
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46
DXLabSuiteCommanderTransceiver.cpp
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@ -359,29 +359,61 @@ QByteArray DXLabSuiteCommanderTransceiver::command_with_reply (QByteArray const&
if (QTcpSocket::ConnectedState != commander_->state ()) if (QTcpSocket::ConnectedState != commander_->state ())
{ {
#if WSJT_TRACE_CAT #if WSJT_TRACE_CAT
qDebug () << "DXLabSuiteCommanderTransceiver::command_with_reply failed:" << commander_->errorString (); qDebug () << "DXLabSuiteCommanderTransceiver::command_with_reply \"" << cmd << "\" connection failed:" << commander_->errorString ();
#endif #endif
throw error {tr ("DX Lab Suite Commander read reply failed\n") + commander_->errorString ()}; throw error {
tr ("DX Lab Suite Commander failed to send command \"%1\" connection failed: %2\n")
.arg (cmd.constData ())
.arg (commander_->errorString ())
};
} }
commander_->write (cmd); commander_->write (cmd);
if (!commander_->waitForBytesWritten (socket_wait_time) || QTcpSocket::ConnectedState != commander_->state ()) if (!commander_->waitForBytesWritten (socket_wait_time) || QTcpSocket::ConnectedState != commander_->state ())
{ {
#if WSJT_TRACE_CAT #if WSJT_TRACE_CAT
qDebug () << "DXLabSuiteCommanderTransceiver::simple_command failed:" << commander_->errorString (); qDebug () << "DXLabSuiteCommanderTransceiver::command_with_reply failed to send command:" << commander_->errorString ();
#endif #endif
throw error {tr ("DX Lab Suite Commander send command failed\n") + commander_->errorString ()}; throw error {
tr ("DX Lab Suite Commander failed to send command \"%1\": %2\n")
.arg (cmd.constData ())
.arg (commander_->errorString ())
};
} }
if (!commander_->waitForReadyRead (socket_wait_time)) // waitForReadReady appears to be unreliable on Windows timing out
// when data is waiting so retry a few times
unsigned retries {5};
bool replied {false};
while (!replied && --retries)
{
replied = commander_->waitForReadyRead (socket_wait_time);
if (!replied && commander_->error () != commander_->SocketTimeoutError)
{ {
#if WSJT_TRACE_CAT #if WSJT_TRACE_CAT
qDebug () << "DXLabSuiteCommanderTransceiver::command_with_reply failed:" << commander_->errorString (); qDebug () << "DXLabSuiteCommanderTransceiver::command_with_reply \"" << cmd << "\" failed to read reply:" << commander_->errorString ();
#endif #endif
throw error {tr ("DX Lab Suite Commander read reply failed\n") + commander_->errorString ()}; throw error {
tr ("DX Lab Suite Commander send command \"%1\" read reply failed: %2\n")
.arg (cmd.constData ())
.arg (commander_->errorString ())
};
}
}
if (!replied)
{
#if WSJT_TRACE_CAT
qDebug () << "DXLabSuiteCommanderTransceiver::command_with_reply \"" << cmd << "\" retries exhausted";
#endif
throw error {
tr ("DX Lab Suite Commander retries exhausted sending command \"%1\"")
.arg (cmd.constData ())
};
} }
auto result = commander_->readAll (); auto result = commander_->readAll ();