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/*
Miranda IM Country Flags Plugin
Copyright (C) 2006-1007 H. Herkenrath
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 (Flags-License.txt); if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "stdafx.h"
/************************* Buffered Functions *********************/
struct BufferedCallData
{
DWORD startTick;
UINT uElapse;
BUFFEREDPROC pfnBuffProc;
LPARAM lParam;
#ifdef _DEBUG
const char *pszProcName;
#endif
};
static UINT idBufferedTimer;
static struct BufferedCallData *callList;
static int nCallListCount;
// always gets called in main message loop
static void CALLBACK BufferedProcTimer(HWND hwnd, UINT, UINT_PTR idTimer, DWORD currentTick)
{
struct BufferedCallData *buf;
UINT uElapsed, uElapseNext = USER_TIMER_MAXIMUM;
BUFFEREDPROC pfnBuffProc;
LPARAM lParam;
#ifdef _DEBUG
char szDbgLine[256];
const char *pszProcName;
#endif
for (int i = 0; i < nCallListCount; ++i) {
/* find elapsed procs */
uElapsed = currentTick - callList[i].startTick; /* wraparound works */
if ((uElapsed + USER_TIMER_MINIMUM) >= callList[i].uElapse) {
/* call elapsed proc */
pfnBuffProc = callList[i].pfnBuffProc;
lParam = callList[i].lParam;
#ifdef _DEBUG
pszProcName = callList[i].pszProcName;
#endif
/* resize storage array */
if ((i + 1) < nCallListCount)
memmove(&callList[i], &callList[i + 1], ((nCallListCount - i - 1)*sizeof(struct BufferedCallData)));
--nCallListCount;
--i; /* reiterate current */
if (nCallListCount) {
buf = (struct BufferedCallData*)mir_realloc(callList, nCallListCount*sizeof(struct BufferedCallData));
if (buf != nullptr) callList = buf;
}
else {
mir_free(callList);
callList = nullptr;
}
#ifdef _DEBUG
mir_snprintf(szDbgLine, "buffered call: %s(0x%X)\n", pszProcName, lParam); /* all ascii */
OutputDebugStringA(szDbgLine);
#endif
CallFunctionAsync((void (CALLBACK *)(void*))pfnBuffProc, (void*)lParam); /* compatible */
}
/* find next timer delay */
else if ((callList[i].uElapse - uElapsed) < uElapseNext)
uElapseNext = callList[i].uElapse - uElapsed;
}
/* set next timer */
if (nCallListCount) {
#ifdef _DEBUG
mir_snprintf(szDbgLine, "next buffered timeout: %ums\n", uElapseNext); /* all ascii */
OutputDebugStringA(szDbgLine);
#endif
idBufferedTimer = SetTimer(hwnd, idBufferedTimer, uElapseNext, BufferedProcTimer); /* will be reset */
}
else {
KillTimer(hwnd, idTimer);
idBufferedTimer = 0;
#ifdef _DEBUG
OutputDebugStringA("empty buffered queue\n");
#endif
}
}
// assumes to be called in context of main thread
#ifdef _DEBUG
void _CallFunctionBuffered(BUFFEREDPROC pfnBuffProc, const char *pszProcName, LPARAM lParam, BOOL fAccumulateSameParam, UINT uElapse)
#else
void _CallFunctionBuffered(BUFFEREDPROC pfnBuffProc, LPARAM lParam, BOOL fAccumulateSameParam, UINT uElapse)
#endif
{
struct BufferedCallData *data = nullptr;
int i;
/* find existing */
for (i = 0; i < nCallListCount; ++i)
if (callList[i].pfnBuffProc == pfnBuffProc)
if (!fAccumulateSameParam || callList[i].lParam == lParam) {
data = &callList[i];
break;
}
/* append new */
if (data == nullptr) {
/* resize storage array */
data = (struct BufferedCallData*)mir_realloc(callList, (nCallListCount + 1)*sizeof(struct BufferedCallData));
if (data == nullptr) return;
callList = data;
data = &callList[nCallListCount];
++nCallListCount;
}
/* set delay */
data->startTick = GetTickCount();
data->uElapse = uElapse;
data->lParam = lParam;
data->pfnBuffProc = pfnBuffProc;
#ifdef _DEBUG
{
char szDbgLine[256];
data->pszProcName = pszProcName;
mir_snprintf(szDbgLine, "buffered queue: %s(0x%X)\n", pszProcName, lParam); /* all ascii */
OutputDebugStringA(szDbgLine);
if (!idBufferedTimer) {
mir_snprintf(szDbgLine, "next buffered timeout: %ums\n", uElapse); /* all ascii */
OutputDebugStringA(szDbgLine);
}
}
#endif
/* set next timer */
if (idBufferedTimer) uElapse = USER_TIMER_MINIMUM; /* will get recalculated */
idBufferedTimer = SetTimer(nullptr, idBufferedTimer, uElapse, BufferedProcTimer);
}
// assumes to be called in context of main thread
void PrepareBufferedFunctions(void)
{
idBufferedTimer = 0;
nCallListCount = 0;
callList = nullptr;
}
// assumes to be called in context of main thread
void KillBufferedFunctions(void)
{
if (idBufferedTimer) KillTimer(nullptr, idBufferedTimer);
nCallListCount = 0;
mir_free(callList); /* does NULL check */
}
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