Communication apparatus performing communication speed changing process, communication control method and storage medium

摘要

A communication apparatus which realizes communication flow control which is capable of preventing decrease in reception performance without causing disappearance of communication data. A first storage unit stores data transmitted from an external apparatus. A second storage unit stores data transferred from the first storage unit. A determination unit determines, in a case of executing communication with the external apparatus, determine a notification size to be notified to the external apparatus as a size of data that can be received by the communication apparatus on a basis of a size of a free space of the first storage unit and a size of a free space of the second storage unit. A notification unit notifies the notification size determined by the determination unit to the external apparatus.

主权项

1. A communication apparatus communicable with an external apparatus, comprising:
a first storage device configured to store data transmitted from the external apparatus; a second storage device configured to store data transferred from said first storage device; a determination unit configured to, in a case of executing communication with the external apparatus, determine a notification size to be notified to the external apparatus as a size of data that can be received by the communication apparatus on a basis of a size of a free space of said first storage device and a size of a free space of said second storage device; and a notification unit configured to notify the notification size determined by said determination unit to the external apparatus, wherein if the free space does not exist in said first storage device, said determination unit determines the notification size to be 0, if the free space exists in said first storage device, and the free space does not exist in said second storage device, said determination unit determines the notification size to be a first size larger than 0, and if the free space exists in both of said first storage device and said second storage device, said determination unit determines the notification size to be a second size larger than the first size, wherein said determination unit and said notification unit are implemented at least in part by a processor executing at least one program recorded on a memory device.