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/*
Miranda NG: the free IM client for Microsoft* Windows*
Copyright (c) 2012-18 Miranda NG team (https://miranda-ng.org),
Copyright (c) 2000-08 Miranda ICQ/IM project,
all portions of this codebase are copyrighted to the people
listed in contributors.txt.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* Author Artem Shpynov aka FYR
* Copyright 2000-2008 Artem Shpynov
*/
//////////////////////////////////////////////////////////////////////////
// Module to Request Away Messages
#include "stdafx.h"
#include "modern_awaymsg.h"
#include "modern_sync.h"
#define AMASKPERIOD 3000
static mir_cs amCS;
static LIST<void> amItems(10, PtrKeySortT);
static HANDLE hamProcessEvent = nullptr;
static DWORD amRequestTick = 0;
/*
* Add contact handle to requests queue
*/
static int amAddHandleToChain(MCONTACT hContact)
{
mir_cslockfull lck(amCS);
if (amItems.find((HANDLE)hContact) != nullptr)
return 0;
amItems.insert((HANDLE)hContact);
lck.unlock();
SetEvent(hamProcessEvent);
return 1;
}
/*
* Gets handle from queue for request
*/
static MCONTACT amGetCurrentChain()
{
mir_cslock lck(amCS);
if (amItems.getCount() == 0)
return 0;
MCONTACT res = (DWORD_PTR)amItems[0];
amItems.remove(0);
return res;
}
/*
* Tread sub to ask protocol to retrieve away message
*/
static void amThreadProc(void *)
{
Netlib_Logf(nullptr, "amThreadProc thread start");
while (!MirandaExiting()) {
MCONTACT hContact = amGetCurrentChain();
while (hContact) {
DWORD time = GetTickCount();
if ((time - amRequestTick) < AMASKPERIOD) {
SleepEx(AMASKPERIOD - (time - amRequestTick) + 10, TRUE);
if (MirandaExiting())
goto LBL_Exit;
}
ClcCacheEntry *pdnce = pcli->pfnGetCacheEntry(hContact);
HANDLE ACK = nullptr;
if (pdnce->ApparentMode != ID_STATUS_OFFLINE) //don't ask if contact is always invisible (should be done with protocol)
ACK = (HANDLE)ProtoChainSend(hContact, PSS_GETAWAYMSG, 0, 0);
if (!ACK) {
ACKDATA ack;
ack.hContact = hContact;
ack.type = ACKTYPE_AWAYMSG;
ack.result = ACKRESULT_FAILED;
ack.szModule = pdnce->szProto;
ClcDoProtoAck(&ack);
}
amRequestTick = time;
hContact = amGetCurrentChain();
if (hContact) {
DWORD i = 0;
do {
i++;
SleepEx(50, TRUE);
} while (i < AMASKPERIOD / 50 && !MirandaExiting());
}
else break;
if (MirandaExiting())
goto LBL_Exit;
}
WaitForSingleObjectEx(hamProcessEvent, INFINITE, TRUE);
ResetEvent(hamProcessEvent);
if (MirandaExiting())
break;
}
LBL_Exit:
g_hAwayMsgThread = nullptr;
Netlib_Logf(nullptr, "amThreadProc thread end");
}
BOOL amWakeThread()
{
if (hamProcessEvent && g_hAwayMsgThread) {
SetEvent(hamProcessEvent);
return TRUE;
}
return FALSE;
}
/*
* Sub to be called outside on status changing to retrieve away message
*/
void amRequestAwayMsg(MCONTACT hContact)
{
if (!g_CluiData.bInternalAwayMsgDiscovery || !hContact)
return;
//Do not re-ask for chat rooms
char *szProto = GetContactProto(hContact);
if (szProto != nullptr && !db_get_b(hContact, szProto, "ChatRoom", 0))
amAddHandleToChain(hContact);
}
void InitAwayMsgModule()
{
hamProcessEvent = CreateEvent(nullptr, FALSE, FALSE, nullptr);
g_hAwayMsgThread = mir_forkthread(amThreadProc, nullptr);
}
void UninitAwayMsgModule()
{
SetEvent(hamProcessEvent);
while (g_hAwayMsgThread)
SleepEx(50, TRUE);
CloseHandle(hamProcessEvent);
}
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