void GamePainter::drawFreeCell(QPoint _pos)
{
QBrush freeZone( Qt::gray );
m_painter.setBrush( freeZone );
m_painter.drawRect( _pos.x() * m_cellSize.width()
, _pos.y() * m_cellSize.height() + 30
, m_cellSize.width()
, m_cellSize.height()
);
}
/*
*freeRNDF function
*
*r : a pointer to struct RNDF
*
*this function will free the space allocated for a struct RNDF
*/
void freeRNDF(struct RNDF *r)
{
int i;
free(r -> RNDF_name);
if(r -> format_version != 0)
free(r -> format_version);
if(r -> creation_date != 0)
free(r -> creation_date);
for(i = 0; i < r -> number_of_segments; i++)
freeSegment(r -> segments_list[i]);
free(r -> segments_list);
for(i = 0; i < r -> number_of_zones; i++)
freeZone(r -> zones_list[i]);
free(r -> zones_list);
free(r);
}
bool rtZone::tryDelete(rtZone * deletingZone) {
// try to delete this zone.
// Note it is not always possible to delete a zone at the current time.
// We might have to wait until later to delete
// If we can delete though, recursively try to delete the parent zone too; return TRUE if the top-most zone is deleted (I.E. the hsm is done executing!)
//
// Note: the original zone trying the delete is passed in recursively
//erfc deletingZone->logFile<<"tryDelete: "<<"("<<eyeCatcher<<")"<<" locking self zone"<<std::endl;
zoneLock.lock();
//erfc deletingZone->logFile<<"tryDelete: "<<"("<<eyeCatcher<<")"<<" locked self zone"<<std::endl;
//
// handle case where zone is not dormant
//
if ((!zoneIsInactive)) {
// this zone is not dormant -- its thread is still running and accessing frames -- we can't really do anything to it now.
//erfc deletingZone->logFile<<"tryDelete: "<<"("<<eyeCatcher<<")"<<" unlocking self zone (not dormant)"<<std::endl;
zoneLock.unlock();
//erfc deletingZone->logFile<<"tryDelete: "<<"("<<eyeCatcher<<")"<<" unlocked self zone (not dormant) and returning false"<<std::endl;
return false;
}
//
// at this point we know the zone is locked and is inactive -- its thread is not accessing any of its frames any longer
// sweep through and remove any dormant frames with no child frames
// this activity is mutexed via zoneLock
//
size_t dormantFramesFreed;
while (dormantFramesFreed>0) { // while loop - at least one iteration
dormantFramesFreed=0;
//erfc deletingZone->logFile<<"tryDelete: "<<"("<<eyeCatcher<<")"<<" before sweep through dormant frames (active/dormant/free: "<<activeFrames.size()<<"/"<<dormantFrames.size()<<"/"<<freeFrames.size()<<")"<<std::endl;
for(auto i=dormantFrames.begin();i!=dormantFrames.end();i++) {
if (i->second->numChildFrames==0) {
dormantFramesFreed++;
freeFrames.insert(std::pair<std::string,rtFrame *>(i->second->mySubMachine->name,i->second));
if (i->second->parentFrame != 0) {
//erfc deletingZone->logFile<<"tryDelete: C: {"<<i->second->parentFrame->pathStr()<<"} numChildFrames: "<<i->second->parentFrame->numChildFrames<<std::endl;
}
dormantFrames.erase(i->second->absolutePath); // careful: erasing from map we're iterating.
break;
}
}
//erfc deletingZone->logFile<<"tryDelete: "<<"("<<eyeCatcher<<")"<<" after sweep through dormant frames (active/dormant/free: "<<activeFrames.size()<<"/"<<dormantFrames.size()<<"/"<<freeFrames.size()<<")"<<std::endl;
}
//erfc deletingZone->logFile<<"tryDelete: "<<"("<<eyeCatcher<<")"<<" done sweeping up (active/dormant/free: "<<activeFrames.size()<<"/"<<dormantFrames.size()<<"/"<<freeFrames.size()<<")"<<std::endl;
//
// zone is locked and inactive, check if root zone with no dormant frames remaining (if yes, return true to indicate "hsm execution complete")
//
//erfc deletingZone->logFile<<"tryDelete: "<<"("<<eyeCatcher<<")"<<" check if hsm done"<<std::endl;
if ((dormantFrames.size()==0) && (superiorZone==0)) {
//erfc deletingZone->logFile<<"tryDelete: "<<"("<<eyeCatcher<<")"<<" topmost zone, unlocking self, deleting self, and returning true"<<std::endl;
zoneLock.unlock();
freeZone();
return true;
}
//
// zone is locked and inactive, handle case where dormant frames remain
//
//erfc deletingZone->logFile<<"tryDelete: "<<"("<<eyeCatcher<<")"<<" hsm not done, check if any dormant frames"<<std::endl;
if (dormantFrames.size()>0) {
//erfc deletingZone->logFile<<"tryDelete: "<<"("<<eyeCatcher<<")"<<" dormant frames detected, returning false"<<std::endl;
zoneLock.unlock();
return false;
}
//
// zone is locked, inactive, and no dormant frames remaining
//
//erfc deletingZone->logFile<<"tryDelete: "<<"("<<eyeCatcher<<")"<<" no dormant frames, assert superior zone present and tryDelete the superior"<<std::endl;
assert (superiorZone!=0); // we checked for this case earlier
//erfc deletingZone->logFile<<"tryDelete: "<<"("<<eyeCatcher<<")"<<" tryDelete superior zone"<<std::endl;
bool rv=superiorZone->tryDelete(deletingZone);
//erfc deletingZone->logFile<<"tryDelete: "<<"("<<eyeCatcher<<")"<<" tryDelete of superior zone completed, unlocking self, deleting self, and returning rv: "<<rv<<" from tryDelete of superior"<<std::endl;
zoneLock.unlock();
freeZone();
return rv;
}
void run_work(struct work_param* param) {
if (pipe(param->pipes) != 0) {
printf("Failed to create pipe! %s\n", strerror(errno));
return;
}
unsigned char wb;
unsigned char* mbuf = xmalloc(1024);
while (1) {
pthread_rwlock_rdlock(¶m->conns->data_mutex);
size_t cc = param->conns->count;
struct pollfd fds[cc + 1];
struct conn* conns[cc];
int fdi = 0;
for (int i = 0; i < param->conns->size; i++) {
if (param->conns->data[i] != NULL) {
conns[fdi] = (param->conns->data[i]);
struct conn* conn = conns[fdi];
fds[fdi].fd = conns[fdi]->fd;
fds[fdi].events = POLLIN | (conn->writeBuffer_size > 0 ? POLLOUT : 0);
fds[fdi++].revents = 0;
if (fdi == cc) break;
} else conns[fdi] = NULL;
}
pthread_rwlock_unlock(¶m->conns->data_mutex);
fds[cc].fd = param->pipes[0];
fds[cc].events = POLLIN;
fds[cc].revents = 0;
int cp = poll(fds, cc + 1, -1);
if (param->mysql->mysql && param->mysql->complete && param->zone != param->mysql->czone) {
if (param->zone != NULL) {
freeZone(param->zone);
}
param->zone = param->mysql->czone;
}
if (cp < 0) {
printf("Poll error in worker thread! %s\n", strerror(errno));
} else if (cp == 0) continue;
else if ((fds[cc].revents & POLLIN) == POLLIN) {
if (read(param->pipes[0], &wb, 1) < 1) printf("Error reading from pipe, infinite loop COULD happen here.\n");
if (cp-- == 1) continue;
}
for (int i = 0; i < cc; i++) {
int re = fds[i].revents;
struct conn* conn = conns[i];
if (conn == NULL) continue;
if ((re & POLLERR) == POLLERR) {
//printf("POLLERR in worker poll! This is bad!\n");
goto cont;
}
if ((re & POLLHUP) == POLLHUP) {
closeConn(param, conn);
conn = NULL;
goto cont;
}
if ((re & POLLNVAL) == POLLNVAL) {
printf("Invalid FD in worker poll! This is bad!\n");
closeConn(param, conn);
conn = NULL;
goto cont;
}
if ((re & POLLIN) == POLLIN) {
size_t tr = 0;
ioctl(fds[i].fd, FIONREAD, &tr);
unsigned char* loc;
if (conn->readBuffer == NULL) {
conn->readBuffer = xmalloc(tr); // TODO: max upload?
conn->readBuffer_size = tr;
loc = conn->readBuffer;
} else {
conn->readBuffer_size += tr;
conn->readBuffer = xrealloc(conn->readBuffer, conn->readBuffer_size);
loc = conn->readBuffer + conn->readBuffer_size - tr;
}
ssize_t r = 0;
if (r == 0 && tr == 0) { // nothing to read, but wont block.
ssize_t x = 0;
x = read(fds[i].fd, loc + r, tr - r);
if (x <= 0) {
closeConn(param, conn);
conn = NULL;
goto cont;
}
r += x;
}
while (r < tr) {
ssize_t x = 0;
x = read(fds[i].fd, loc + r, tr - r);
if (x <= 0) {
closeConn(param, conn);
conn = NULL;
goto cont;
}
r += x;
}
int p = 0;
p = handleRead(conn, param, fds[i].fd);
if (p == 1) {
goto cont;
}
}
if ((re & POLLOUT) == POLLOUT && conn != NULL) {
ssize_t mtr = write(fds[i].fd, conn->writeBuffer, conn->writeBuffer_size);
if (mtr < 0 && errno != EAGAIN) {
closeConn(param, conn);
conn = NULL;
goto cont;
} else if (mtr < 0) {
goto cont;
} else if (mtr < conn->writeBuffer_size) {
memmove(conn->writeBuffer, conn->writeBuffer + mtr, conn->writeBuffer_size - mtr);
conn->writeBuffer_size -= mtr;
conn->writeBuffer = xrealloc(conn->writeBuffer, conn->writeBuffer_size);
} else {
conn->writeBuffer_size = 0;
xfree(conn->writeBuffer);
conn->writeBuffer = NULL;
}
if (conn->writeBuffer_size == 0 && conn->state == 1) {
closeConn(param, conn);
conn = NULL;
goto cont;
}
}
cont: ;
if (--cp == 0) break;
}
}
xfree(mbuf);
}
