int main(int argc, char **argv)
{
if(argc != 6 && argc != 8)
{
cout << "Error: invalid command!\nPlease use ./vmsim –n <numframes> -a <opt|clock|aging|lru> [-r <refresh>] <tracefile>" << endl;
return 0;
}
unsigned int nframes; /** # of Frames **/
if(sscanf(argv[2], "%u", &nframes) == -1 || (nframes & (nframes - 1)) || nframes > 64) /** x &(x-1) produces 0 if x is of the form 2^n. **/
{
cout << "Error: invalid argument for frame numbers!\nPlease use 8, 16, 32, or 64 instead." << endl;
return 0;
}
string alg(argv[4]); /** Algorithm **/
if(alg == "aging")
{
unsigned int period; /** Refreshing Period **/
sscanf(argv[6], "%u", &period);
run_aging(argv[7], nframes, period); /** will be using a priority deque to simulate the physical memory. **/
}
else
{
if(alg == "opt")
run_optimal(argv[5], nframes); /** will be using an unordered_set to simulate the physical memory. **/
else if(alg == "clock")
run_clock(argv[5], nframes); /** will be using a doubly-linked list to simulate the physical memory. **/
else if(alg == "lru")
run_lru(argv[5], nframes); /** will be using a stack to simulate the physical memory. **/
else
{
cout << "Error: unrecognised algorithm.\nPlease use opt, clock, aging, or lru instead." << endl;
return 0;
}
}
cout << "\n\nAlgorithm:\t" << alg << endl;
cout << "Number of frames:\t" << nframes << endl;
cout << "Total memory accesses:\t" << total_accesses << endl;
cout << "Total page faults:\t" << page_fault_count << endl;
cout << "Total writes to disk:\t" << write_to_disk_count << "\n\n" << endl;
return 0;
}
redraw(void)
{
/* erase warning line if necessary */
if ((warntimer <= udcounter) && (warncount > 0))
{
/* XFIX */
W_ClearArea(warnw, 5, 5, W_Textwidth * warncount, W_Textheight);
warncount = 0;
}
run_clock(lastread); /* for hosers who don't know
* * * what a Xclock is */
clearLocal();
#ifdef BEEPLITE
if (tts_timer)
{
static int last_width;
tts_timer--;
if (!tts_timer)
{
/* timed out */
W_EraseTTSText(w, TWINSIDE, tts_pos, last_width);
last_width = 0;
}
else if (tts_timer == tts_time - 1 && last_width)
{
/* first draw -- erase previous */
W_EraseTTSText(w, TWINSIDE, tts_pos, last_width);
/* draw new */
W_WriteTTSText(w, TWINSIDE, tts_pos, tts_width, lastIn,
tts_len);
last_width = tts_width;
}
else
{
/* regular draw */
W_WriteTTSText(w, TWINSIDE, tts_pos, tts_width, lastIn, tts_len);
last_width = tts_width;
}
}
#endif
local(); /* redraw local window */
/* XFIX */
W_FlushLineCaches(w);
if (newDashboard) /* 6/2/93 LAB */
if (newDashboard == old_db)
db_redraw(0);
else
redrawTstats();
else if (newDashboard == old_db)
stline(0);
else
redrawTstats();
old_db = newDashboard;
if (W_IsMapped(statwin))
updateStats();
/* XFIX: last since its least accurate information */
map();
}
redraw()
{
/* erase warning line if necessary */
if ((warntimer <= udcounter) && (warncount > 0)) {
W_ClearArea(warnw, 5, 5, W_Textwidth * warncount, W_Textheight, backColor);
warncount = 0;
}
if (W_FastClear) {
W_ClearWindow(w);
clearcount=0;
clearlcount=0;
} else {
/* TSH 2/10/93 */
while (clearcount) {
clearcount--;
W_CacheClearArea(w, clearzone[0][clearcount],
clearzone[1][clearcount],
clearzone[2][clearcount], clearzone[3][clearcount]);
}
while (clearlcount) {
clearlcount--;
W_CacheLine(w, clearline[0][clearlcount], clearline[1][clearlcount],
clearline[2][clearlcount], clearline[3][clearlcount],
backColor);
}
W_FlushClearAreaCache(w);
W_FlushLineCaches(w);
while (mclearlcount){
mclearlcount--;
W_CacheLine(mapw, mclearline[0][mclearlcount],
mclearline[1][mclearlcount], mclearline[2][mclearlcount],
mclearline[3][mclearlcount],
backColor);
}
while (mclearpcount){
mclearpcount--;
W_CachePoint(mapw, mclearpoint[0][mclearpcount],
mclearpoint[1][mclearpcount], backColor);
}
W_FlushLineCaches(mapw);
W_FlushPointCaches(mapw);
}
local(); /* redraw local window */
if (mapmode) map();
if (W_IsMapped(statwin)){
updateStats();
}
/* need a status line but we'll make do with the bottom of the local
display for now */
if(runclock)
run_clock(1); /* isae */
if(record)
show_record(1);
if(playback)
show_playback(1);
if(playback && extracting)
show_extracting(extracting); /* 7/27/93 BM */
/* W_Flush(); */
}
