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Location: cpp/openttd-patchpack/source/src/linkgraph/demands.h - annotation
r24484:e4eb01747c4c
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Change: [Linkgraph] Only acquire thread join performance measurements on network clients
Network servers and single player clients do not block on thread joins
due to instead pausing shortly before the join is due.
Network servers and single player clients do not block on thread joins
due to instead pausing shortly before the join is due.
r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r23838:bfeaabaa7b1d r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r23023:7b8669afd1db r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f r20342:25da7cb85f9f | /** @file demands.h Declaration of demand calculating link graph handler. */
#ifndef DEMANDS_H
#define DEMANDS_H
#include "linkgraphjob_base.h"
/**
* Calculate the demands. This class has a state, but is recreated for each
* call to of DemandHandler::Run.
*/
class DemandCalculator {
public:
DemandCalculator(LinkGraphJob &job);
private:
int32 max_distance; ///< Maximum distance possible on the map.
int32 mod_dist; ///< Distance modifier, determines how much demands decrease with distance.
int32 accuracy; ///< Accuracy of the calculation.
template<class Tscaler>
void CalcDemand(LinkGraphJob &job, Tscaler scaler);
};
/**
* Stateless, thread safe demand handler. Doesn't do anything but call DemandCalculator.
*/
class DemandHandler : public ComponentHandler {
public:
/**
* Call the demand calculator on the given component.
* @param job Component to calculate the demands for.
*/
virtual void Run(LinkGraphJob &job) const { DemandCalculator c(job); }
/**
* Virtual destructor has to be defined because of virtual Run().
*/
virtual ~DemandHandler() {}
};
#endif /* DEMANDS_H */
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