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we don't need to use select() in DoWait() if we're receiving notifications about changes on our socket anyhow, this makes the code less efficient and, most importantly, much more confusing than necessary

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57566 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2008-12-26 14:39:04 +00:00
parent 5c1193e090
commit 2f1c8faf2c
1 changed files with 26 additions and 17 deletions
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43
src/common/socket.cpp
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@ -1247,19 +1247,35 @@ wxSocketBase::DoWait(long seconds, long milliseconds, wxSocketEventFlags flags)
eventLoop = NULL;
}
// reset them before starting to wait
m_eventsgot = 0;
// Wait in an active polling loop: notice that the loop is executed at
// least once, even if timeout is 0 (i.e. polling).
bool gotEvent = false;
for ( ;; )
{
// We always stop waiting when the connection is lost as it doesn't
// make sense to continue further, even if wxSOCKET_LOST_FLAG is not
// specified in flags to wait for.
const wxSocketEventFlags
result = m_impl->Select(flags | wxSOCKET_LOST_FLAG);
wxSocketEventFlags events;
if ( eventLoop )
{
// This function is only called if wxSOCKET_BLOCK flag was not used
// and so we should dispatch the events if there is an event loop
// capable of doing it.
if ( eventLoop->Pending() )
eventLoop->Dispatch();
events = m_eventsgot;
}
else
{
// We always stop waiting when the connection is lost as it doesn't
// make sense to continue further, even if wxSOCKET_LOST_FLAG is
// not specified in flags to wait for.
events = m_impl->Select(flags | wxSOCKET_LOST_FLAG);
}
// Incoming connection (server) or connection established (client)?
if ( result & wxSOCKET_CONNECTION_FLAG )
if ( events & wxSOCKET_CONNECTION_FLAG )
{
m_connected = true;
m_establishing = false;
@ -1268,14 +1284,14 @@ wxSocketBase::DoWait(long seconds, long milliseconds, wxSocketEventFlags flags)
}
// Data available or output buffer ready?
if ( (result & wxSOCKET_INPUT_FLAG) || (result & wxSOCKET_OUTPUT_FLAG) )
if ( (events & wxSOCKET_INPUT_FLAG) || (events & wxSOCKET_OUTPUT_FLAG) )
{
gotEvent = true;
break;
}
// Connection lost
if ( result & wxSOCKET_LOST_FLAG )
if ( events & wxSOCKET_LOST_FLAG )
{
m_connected = false;
m_establishing = false;
@ -1292,16 +1308,9 @@ wxSocketBase::DoWait(long seconds, long milliseconds, wxSocketEventFlags flags)
if ( timeNow >= timeEnd )
break;
if ( eventLoop )
{
// This function is only called if wxSOCKET_BLOCK flag was not used
// and so we should dispatch the events if there is an event loop
// capable of doing it.
if ( eventLoop->Pending() )
eventLoop->Dispatch();
}
#if wxUSE_THREADS
else // no event loop or waiting in another thread
// no event loop or waiting in another thread
if ( !eventLoop )
{
// We're busy waiting but at least give up the rest of our current
// time slice.