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Improve socket write handling in HRD interface.

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The TCP/IP socket write handling in teh HRD inteface was naive and did
not handle  incomplete writes t all.  This change loops until  all the
payload is written for each command sent.

Also error  handling is improved  so that a  socket in an  error state
cannot get used inadvertenly.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@4263 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Bill Somerville 2014-09-07 23:42:10 +00:00
parent 127e027671
commit 3ea0563e84
2 changed files with 51 additions and 42 deletions
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92
HRDTransceiver.cpp
View File

@ -318,13 +318,6 @@ std::vector<int> HRDTransceiver::find_dropdown_selection (int dropdown, QRegExp
return indices;
}
int HRDTransceiver::lookup_dropdown_selection (int dropdown, QString const& selection) const
{
int index {dropdowns_.value (dropdown_names_.value (dropdown)).indexOf (selection)};
Q_ASSERT (-1 != index);
return index;
}
void HRDTransceiver::map_modes (int dropdown, ModeMap *map)
{
// order matters here (both in the map and in the regexps)
@ -393,16 +386,11 @@ int HRDTransceiver::get_dropdown (int dd, bool no_debug)
if (colon_index < 0)
{
#if WSJT_TRACE_CAT
qDebug () << "HRDTransceiver::get_dropdown bad response";
#endif
throw error {tr ("Ham Radio Deluxe didn't respond as expected")};
return -1;
}
Q_ASSERT (reply.left (colon_index).trimmed () == dd_name);
return lookup_dropdown_selection (dd, reply.mid (colon_index + 1).trimmed ());
return dropdowns_.value (dropdown_names_.value (dd)).indexOf (reply.mid (colon_index + 1).trimmed ());
}
void HRDTransceiver::set_dropdown (int dd, int value)
@ -617,11 +605,12 @@ void HRDTransceiver::poll ()
{
if (!split_mode_dropdown_write_only_)
{
try
auto selection = get_dropdown (split_mode_dropdown_, quiet);
if (selection >= 0)
{
update_split (get_dropdown (split_mode_dropdown_, quiet) == split_mode_dropdown_selection_on_.front ());
update_split (selection == split_mode_dropdown_selection_on_.front ());
}
catch (error const&)
else
{
// leave split alone as we can't query it - it should be
// correct so long as rig or HRD haven't been changed
@ -668,15 +657,6 @@ QString HRDTransceiver::send_command (QString const& cmd, bool no_debug, bool pr
QThread::msleep (50);
}
if (QTcpSocket::ConnectedState != hrd_->state ())
{
#if WSJT_TRACE_CAT
qDebug () << "HRDTransceiver::send_command connection failed:" << hrd_->errorString ();
#endif
throw error {tr ("Ham Radio Deluxe connection failed\n") + hrd_->errorString ()};
}
if (!recurse && prepend_context)
{
auto radio_name = send_command ("get radio", no_debug, current_radio_, true);
@ -701,13 +681,42 @@ QString HRDTransceiver::send_command (QString const& cmd, bool no_debug, bool pr
auto context = '[' + QString::number (current_radio_) + "] ";
if (QTcpSocket::ConnectedState != hrd_->state ())
{
#if WSJT_TRACE_CAT
qDebug () << "HRDTransceiver::send_command \"" << cmd << "\" failed" << hrd_->errorString ();
#endif
throw error {
tr ("Ham Radio Deluxe send command \"%1\" failed %2\n")
.arg (cmd)
.arg (hrd_->errorString ())
};
}
int bytes_to_send;
int bytes_sent;
int total_bytes_sent {0};
if (v4 == protocol_)
{
auto message = ((prepend_context ? context + cmd : cmd) + "\r").toLocal8Bit ();
bytes_to_send = message.size ();
bytes_sent = hrd_->write (message.data (), bytes_to_send);
while (total_bytes_sent < bytes_to_send)
{
auto bytes_sent = hrd_->write (message.constData () + total_bytes_sent, bytes_to_send - total_bytes_sent);
if (bytes_sent < 0 || !hrd_->waitForBytesWritten (socket_wait_time))
{
#if WSJT_TRACE_CAT
qDebug () << "HRDTransceiver::send_command failed to write command \"" << cmd << "\" to HRD";
#endif
throw error {
tr ("Ham Radio Deluxe: failed to write command \"%1\"")
.arg (cmd)
};
}
total_bytes_sent += bytes_sent;
}
if (!no_debug)
{
@ -721,22 +730,23 @@ QString HRDTransceiver::send_command (QString const& cmd, bool no_debug, bool pr
auto string = prepend_context ? context + cmd : cmd;
QScopedPointer<HRDMessage> message (new (string) HRDMessage);
bytes_to_send = message->size_;
bytes_sent = hrd_->write (reinterpret_cast<char *> (message.data ()), bytes_to_send);
}
if (bytes_sent < bytes_to_send
|| !hrd_->waitForBytesWritten (socket_wait_time)
|| QTcpSocket::ConnectedState != hrd_->state ())
{
while (total_bytes_sent < bytes_to_send)
{
auto bytes_sent = hrd_->write (reinterpret_cast<char *> (message.data ()) + total_bytes_sent, bytes_to_send - total_bytes_sent);
if (bytes_sent < 0 || !hrd_->waitForBytesWritten (socket_wait_time))
{
#if WSJT_TRACE_CAT
qDebug () << "HRDTransceiver::send_command \"" << cmd << "\" failed" << hrd_->errorString ();
qDebug () << "HRDTransceiver::send_command failed to write command \"" << cmd << "\" to HRD";
#endif
throw error {
tr ("Ham Radio Deluxe send command \"%1\" failed %2\n")
.arg (cmd)
.arg (hrd_->errorString ())
};
throw error {
tr ("Ham Radio Deluxe: failed to write command \"%1\"")
.arg (cmd)
};
}
total_bytes_sent += bytes_sent;
}
}
// waitForReadReady appears to be unreliable on Windows timing out

1
HRDTransceiver.hpp
View File

@ -52,7 +52,6 @@ private:
int find_button (QRegExp const&) const;
int find_dropdown (QRegExp const&) const;
std::vector<int> find_dropdown_selection (int dropdown, QRegExp const&) const;
int lookup_dropdown_selection (int dropdown, QString const&) const;
int get_dropdown (int, bool no_debug = false);
void set_dropdown (int, int);
void set_button (int button_index, bool checked = true);