diff options
Diffstat (limited to 'src/linkgraph/linkgraph_type.h')
| -rw-r--r-- | src/linkgraph/linkgraph_type.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/linkgraph/linkgraph_type.h b/src/linkgraph/linkgraph_type.h index 330461841..6a3239b08 100644 --- a/src/linkgraph/linkgraph_type.h +++ b/src/linkgraph/linkgraph_type.h @@ -39,4 +39,26 @@ enum DistributionType { template <> struct EnumPropsT<DistributionType> : MakeEnumPropsT<DistributionType, byte, DT_BEGIN, DT_END, DT_NUM> {}; typedef TinyEnumT<DistributionType> DistributionTypeByte; // typedefing-enumification of DistributionType +/** + * Special modes for updating links. 'Restricted' means that vehicles with + * 'no loading' orders are serving the link. If a link is only served by + * such vehicles it's 'fully restricted'. This means the link can be used + * by cargo arriving in such vehicles, but not by cargo generated or + * transferring at the source station of the link. In order to find out + * about this condition we keep two update timestamps in each link, one for + * the restricted and one for the unrestricted part of it. If either one + * times out while the other is still valid the link becomes fully + * restricted or fully unrestricted, respectively. + * Refreshing a link makes just sure a minimum capacity is kept. Increasing + * actually adds the given capacity. + */ +enum EdgeUpdateMode { + EUM_INCREASE = 1, ///< Increase capacity. + EUM_REFRESH = 1 << 1, ///< Refresh capacity. + EUM_RESTRICTED = 1 << 2, ///< Use restricted link. + EUM_UNRESTRICTED = 1 << 3, ///< Use unrestricted link. +}; + +DECLARE_ENUM_AS_BIT_SET(EdgeUpdateMode) + #endif /* LINKGRAPH_TYPE_H */ |