LockQBox.h

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#ifndef LOCK_QBOX_H
#define LOCK_QBOX_H

#include "QBox.h"
#include <vector>

#include <ext/hash_map>

BOREALIS_NAMESPACE_BEGIN;

class LockQBox : public QBox 
{
  public:
    ~LockQBox();

  private:
    ptr<LockSet> _lock_set;
    ptr<Expression> _key_expr;
    typedef __gnu_cxx::hash_map<int, list<string> > PendingMap;
    PendingMap _pending_tuples;
    EvalContext _ctxt;
    size_t _tuple_size;
        
  protected:
        void setupImpl() throw (AuroraException);
        void initImpl() throw (AuroraException);
        void runImpl(QBoxInvocation&) throw (AuroraException);
        
        AURORA_DECLARE_QBOX(LockQBox, "lock");
};

BOREALIS_NAMESPACE_END;

template<typename T, typename U>
inline string to_string(const __gnu_cxx::hash_map<T,U>& m) {
    string out = "{";

    for (typename __gnu_cxx::hash_map<T, U>::const_iterator i = m.begin(); i != m.end(); ++i) {
        if (i != m.begin()) out.append("; ");
        out.append(to_string(i->first)).append("->").append(to_string(i->second));
    }

    out.append("}");
    return out;
}

#endif

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