Communication device, communication method, and communication program

摘要

An objective of the present invention is to determine a function of each communication apparatus with few steps. A first communication apparatus (100) is capable of carrying out at least one of a function of an apparatus which receives an access thereto from a second communication apparatus (200), and a function of a host which accesses the second communication apparatus (200). The first communication apparatus (100) comprises: an access request issuing unit (140) which issues a request which denotes the function thereof to the second communication apparatus (200); and a conflict assessment unit (150) which, either when the request and a request which the second communication apparatus (200) has issued conflict or when the request is rejected, makes the access request issuing unit (140) reissue a request to the second communication apparatus (200) which denotes another function.

主权项

1. A communication apparatus including a data storing section and being capable of serving at least one of a role as a device for allowing another communication apparatus at a position remote from the communication apparatus to access the data storing section and a role as a host for accessing a data storing section included in the other communication apparatus, the communication apparatus comprising:
an access control section that controls the role to be served by the communication apparatus; an access request issuing section that issues, to the other communication apparatus, a request that the communication apparatus serve one of the roles that the communication apparatus is capable of serving; an acquisition section that acquires a request issued by the other communication apparatus and that acquires a response to the request issued by the access request issuing section; and a conflict determining section that issues, to the other communication apparatus via the access request issuing section, without exchanging capability information with the other communication apparatus in advance, a request that the communication apparatus serves the other role when the communication apparatus is capable of serving the other role, in at least one of a case where the request issued by the access request issuing section and the request issued by the other communication apparatus conflict with each other and a case where the request issued by the access request issuing section is rejected.