int CPos::short_pos(day_price_t &dp, int percent)
{
int date = dp.date;
int price = dp.open;
assert(m_status == ST_OPEN);
assert(date >= m_begin_date && m_end_date == 0);
int count = m_init_count / percent;
if (count > m_curr_count)
count = m_curr_count;
m_curr_count -= count;
if (m_curr_count == 0){
m_status = ST_CLOSE;
m_end_date = date;
}
m_curr_cost = price;
COperation *op = new COperation(this, date, DI_SELL, count, price);
m_ops[date] = op;
//we get fix_profit now
profit_t *p = &m_fix_profit;
p->fee += op->get_fee();
p->cash_profit += count * (price - m_init_cost);
p->float_profit = m_curr_count * (price - m_init_cost) + p->cash_profit;
p->total_profit = p->cash_profit - p->fee;
return p->total_profit;
}
CPos:: CPos(CStock *owner, int begin_date, int count, int cost)
{
m_db = owner->get_db();
m_owner = owner;
m_begin_date = begin_date;
m_end_date = 0;
m_init_count = m_curr_count = count;
m_init_cost = m_curr_cost = cost;
m_status = ST_OPEN;
COperation *op = new COperation(this, begin_date, DI_BUY, count, cost);
m_ops[begin_date] = op;
m_fix_profit.fee = op->get_fee();
}
/// Process the operation queue in FIFO order.
///
/// @param[in] poRunner the execution thread instance invoking this method
void CAsynchronous::MakeCallbacks (const CThread *poRunner) {
LOGDEBUG (TEXT ("Waiting for thread control semaphore"));
m_semThread.Wait ();
LOGDEBUG (TEXT ("Thread control semaphore signalled"));
while (!m_bPoison) {
EnterCriticalSection ();
if (poRunner != m_poRunner) goto abandonLoop;
while (!m_poHead) {
m_bWaiting = true;
LeaveCriticalSection ();
LOGDEBUG ("List is empty - waiting on semaphore");
if (!m_semQueue.Wait (GetTimeoutInactivity ())) {
LOGDEBUG ("Thread inactivity timeout reached");
EnterCriticalSection ();
// Abandon if thread recycling has happened
if (poRunner != m_poRunner) goto abandonLoop;
if (!m_poHead) {
LOGINFO ("Terminating idle callback thread");
CThread::Release (m_poRunner);
m_poRunner = NULL;
m_bWaiting = false;
LOGDEBUG (TEXT ("Signalling thread control semaphore"));
m_semThread.Signal ();
LeaveCriticalSection ();
return;
} else {
LOGDEBUG ("Operation received on idle timeout boundary");
}
LeaveCriticalSection ();
}
if (m_bPoison) {
LOGINFO ("Thread poisoned");
goto abortLoop;
}
EnterCriticalSection ();
if (poRunner != m_poRunner) goto abandonLoop;
m_bWaiting = false;
}
COperation *poOperation = m_poHead;
if (!(m_poHead = poOperation->m_poNext)) {
m_poTail = NULL;
}
LeaveCriticalSection ();
LOGDEBUG ("Calling run on asynchronous operation");
poOperation->m_nMustReschedule = -poOperation->m_nMustReschedule;
poOperation->Run ();
if (poOperation->m_nMustReschedule > 0) {
if (poOperation->m_nMustReschedule >= (GetTimeoutAbortPeriod () / GetTimeoutReschedule ())) {
LOGERROR ("Aborting operation after " << poOperation->m_nMustReschedule << " attempts");
goto abortLoop;
} else {
if ((poOperation->m_nMustReschedule % (GetTimeoutInfoPeriod () / GetTimeoutReschedule ())) == 0) {
LOGINFO ("Rescheduling operation " << poOperation->m_nMustReschedule << " times");
} else {
LOGDEBUG ("Rescheduling operation " << poOperation->m_nMustReschedule << " time(s)");
}
}
EnterCriticalSection ();
if (poOperation->OnScheduled ()) {
if (!(poOperation->m_poNext = m_poHead)) {
m_poTail = NULL;
}
m_poHead = poOperation;
} else {
LOGDEBUG (TEXT ("Operation rejected reschedule"));
delete poOperation;
}
LeaveCriticalSection ();
CThread::Sleep (GetTimeoutReschedule ());
} else {
LOGDEBUG ("Deleting asynchronous operation");
delete poOperation;
}
}
abortLoop:
LOGDEBUG ("Callback thread aborting");
EnterCriticalSection ();
// Fall through to abandonLoop
abandonLoop:
// Already in critical section when called from above
while (m_poHead) {
COperation *poOperation = m_poHead;
m_poHead = poOperation->m_poNext;
if (poOperation->m_bVital) {
LOGINFO (TEXT ("Running vital operation"));
poOperation->Run ();
} else {
LOGDEBUG (TEXT ("Discarding operation"));
}
delete poOperation;
}
m_poTail = NULL;
if (m_poRunner != poRunner) {
// Thread recycling has happened
LOGDEBUG (TEXT ("Signalling thread control semaphore"));
m_semThread.Signal ();
LOGINFO (TEXT ("Callback thread abandonned"));
} else {
CThread::Release (m_poRunner);
m_poRunner = NULL;
LOGINFO (TEXT ("Callback thread aborted"));
}
m_bWaiting = false;
LeaveCriticalSection ();
return;
}
double GetResult()
{
return op->GetResult();
}
int main()
{
// The number that the variable "x" will point to
double_complex x;
// Creates a variable named "x" and which value will be x
CVar xvar ( "x" , &x );
// Asks for a fomula depending on the variable x, e.g. "sin 2x"
char s[500]="";
printf("Enter a formula depending on the variable x:\n");
gets(s);
// Creates an operation with this formula. The operation depends on one
// variable, which is xvar ; the third argument is an array of pointers
// to variables; the previous argument is its size
CVar* vararray[1]; vararray[0]=&xvar;
COperation op ( s, 1, vararray );
// Affects (indirectly) a value to xvar
x=3;
// Printfs the value of the formula for x=3;
printf("%s = %s for x=3\n\n", op.Expr(), PrettyPrint(op.Val()) );
// Creates a function name which can be used in later functions to refer to the operation op(x)
CFunction f (op, &xvar); f.SetName("f");
// Creates a second variable named y, and a formula depending on both x and y
double_complex y;
CVar yvar ( "y" , &y );
CVar* vararray2[2]; // table of variables containing the adresses of xvar and yvar
vararray2[0]=&xvar; vararray2[1]=&yvar;
// Asks for a formula using x, y and the already-defined function f, e.g. x+f(3y)
printf("Enter a formula using x, y and the function f(x): x -> %s that you just entered, e.g. x+f(3y) :\n", op.Expr());
gets(s);
CFunction* funcarray[1]; funcarray[0]=&f;
COperation op2 ( (char*)s , 2 , vararray2 , 1, funcarray );
// vararray2 is a CVar* array with two elements
// funcarray is a CFunction* array with one element
y=5;
printf("Value for x=3, y=5 : %s\n", PrettyPrint(op2.Val()) );
// Turns the last expression into a function of x and y
CFunction g(op2, 2, vararray2); g.SetName("g");
// Here is another way to do it
double_complex z,t;
CVar zvar("z", &z), tvar("t", &t);
COperation op3,zop,top;
zop=zvar; top=tvar; // constructs, from a variable, the operation returning its value
op3=g( (zop+top, top^2) ); // Ready-to-use ; needs two pairs of ( )
// Now op3 contains the operation op2 with x replaced with z+t, and y replaced with t^2
z=5;t=7;
printf("\nLet g be the function g : x,y -> %s\n", op2.Expr());
printf("Value of %s for z=5,t=7:\n %s\n", op3.Expr(), PrettyPrint(op3.Val()) );
COperation dopdt=op3.Diff(tvar); // Computes the derivative of op3 w.r.t t
printf("Value of d/dt (g(z+t,t^2)) = %s for z=5,t=7:\n %s\n", dopdt.Expr(), PrettyPrint(dopdt.Val()) );
COperation dopdtbar=op3.DiffConj(tvar); // Computes the derivative of op3 w.r.t the conjugate of t
printf("Value of d/dtbar (g(z+t,t^2)) = %s for z=5,t=7:\n %s\n", dopdtbar.Expr(), PrettyPrint(dopdtbar.Val()) );
return 0;
}
void CCommandCore::SetOperation(const COperation& operation)
{
CXMLElement* p_ele = GetRootCommandElement();
p_ele->SetAttribute("command",operation.GetStringForm());
}
int test_SimplyFactory1()
{
//CCalculatorFactory* calFactory = new CCalculatorFactory();
int type = 0;
double a = 10, b = 2;
type = 1;
//COperation* operation = calFactory->CreateOperation((PRODUCTTYPE)type, a, b);
COperation* operation = CCalculatorFactory::CreateOperation((PRODUCTTYPE)type, a, b);
if (operation) {
std::cout << operation->GetResult() << std::endl;
delete operation;
operation = NULL;
}
type = 2;
//operation = calFactory->CreateOperation((PRODUCTTYPE)type, a, b);
operation = CCalculatorFactory::CreateOperation((PRODUCTTYPE)type, a, b);
if (operation) {
std::cout << operation->GetResult() << std::endl;
delete operation;
operation = NULL;
}
type = 3;
//operation = calFactory->CreateOperation((PRODUCTTYPE)type, a, b);
operation = CCalculatorFactory::CreateOperation((PRODUCTTYPE)type, a, b);
if (operation) {
std::cout << operation->GetResult() << std::endl;
delete operation;
operation = NULL;
}
type = 4;
//operation = calFactory->CreateOperation((PRODUCTTYPE)type, a, b);
operation = CCalculatorFactory::CreateOperation((PRODUCTTYPE)type, a, b);
if (operation) {
std::cout << operation->GetResult() << std::endl;
delete operation;
operation = NULL;
}
/*if (calFactory) {
delete calFactory;
calFactory = NULL;
}*/
/*result
COperation constructor
CAddOperation constructor
12
CAddOperation destructor
COperation destructor
COperation constructor
CSubOperation constructor
8
CSubOperation destructor
COperation destructor
COperation constructor
CMulOperation constructor
20
CMulOperation destructor
COperation destructor
COperation constructor
CDivOperation constructor
5
CDivOperation destructor
COperation destructor
*/
return 0;
}