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don't cache the result of IsAlwaysConnected() and don't call IsOnline() unnecessarily from there

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16235 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2002-07-21 13:47:39 +00:00
parent 04354c1deb
commit 19caf22926
1 changed files with 7 additions and 41 deletions
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48
src/msw/dialup.cpp
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@ -266,10 +266,6 @@ private:
// this flag tells us if we're online
static int ms_isConnected;
// this flag is the result of the call to IsAlwaysOnline() (-1 if not
// called yet)
static int ms_isAlwaysOnline;
// this flag tells us whether a call to RasDial() is in progress
static wxDialUpManagerMSW *ms_dialer;
};
@ -321,7 +317,6 @@ RASCONNECTIONNOTIFICATION wxDialUpManagerMSW::ms_pfnRasConnectionNotification =
int wxDialUpManagerMSW::ms_userSpecifiedOnlineStatus = -1;
int wxDialUpManagerMSW::ms_isConnected = -1;
int wxDialUpManagerMSW::ms_isAlwaysOnline = -1;
wxDialUpManagerMSW *wxDialUpManagerMSW::ms_dialer = NULL;
// ----------------------------------------------------------------------------
@ -926,14 +921,10 @@ bool wxDialUpManagerMSW::HangUp()
bool wxDialUpManagerMSW::IsAlwaysOnline() const
{
// we cache the result (presumably this won't change while the program is
// running!)
if ( ms_isAlwaysOnline != -1 )
{
return ms_isAlwaysOnline != 0;
}
// assume no permanent connection by default
bool isAlwaysOnline = FALSE;
// try to use WinInet function first
// try to use WinInet functions
// NB: we could probably use wxDynamicLibrary here just as well,
// but we allow multiple instances of wxDialUpManagerMSW so
@ -956,39 +947,14 @@ bool wxDialUpManagerMSW::IsAlwaysOnline() const
if ( pfnInternetGetConnectedState(&flags, 0 /* reserved */) )
{
// there is some connection to the net, see of which type
ms_isAlwaysOnline = ((flags & INTERNET_CONNECTION_LAN) != 0)
|| ((flags & INTERNET_CONNECTION_PROXY) != 0);
}
else
{
// no Internet connection at all
ms_isAlwaysOnline = FALSE;
isAlwaysOnline = (flags & (INTERNET_CONNECTION_LAN |
INTERNET_CONNECTION_PROXY)) != 0;
}
//else: no Internet connection at all
}
}
// did we succeed with WinInet? if not, try something else
if ( ms_isAlwaysOnline == -1 )
{
if ( !IsOnline() )
{
// definitely no permanent connection because we are not connected
// now
ms_isAlwaysOnline = FALSE;
}
else
{
// of course, having a modem doesn't prevent us from having a
// permanent connection as well, but we have to guess somehow and
// it's probably more common that a system connected via a modem
// doesn't have any other net access, so:
ms_isAlwaysOnline = FALSE;
}
}
wxASSERT_MSG( ms_isAlwaysOnline != -1, wxT("logic error") );
return ms_isAlwaysOnline != 0;
return isAlwaysOnline;
}
bool wxDialUpManagerMSW::IsOnline() const