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#ifndef COMMSTATE_HH
#define COMMSTATE_HH
#include <queue>
#include <vector>
#include <mpi.h>
using namespace std;
class gdata;
// State information for communications
enum astate { state_recv, state_send, state_wait, state_done };
struct comm_state {
astate thestate;
comm_state ();
void step ();
bool done ();
~comm_state ();
private:
// Forbid copying and passing by value
comm_state (comm_state const &);
comm_state& operator= (comm_state const &);
public:
queue<gdata*> tmps1, tmps2;
vector<MPI_Request> requests; // for use_waitall
};
#endif // COMMSTATE_HH
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