Abstract: This application provides techniques comprising creating a main thread and at least two task threads; determining, by the main thread, a target task thread based on a data packet corresponding to a data transmission task in response to detecting the data transmission task associated with a client device, and sending the data packet to the target task thread, where the target task thread is any one of the at least two task threads; and receiving, by the target task thread, the data packet sent by the main thread, determining, based on the data packet, a first file descriptor corresponding to the client device, and communicating with the client device by using the first file descriptor to perform data transmission.

Abstract: A method for employing item-level financing offers in relation to extension of a loan to a user for an online cart including multiple items may include receiving information identifying a first item in the online cart and receiving information identifying a second item in the online cart. The method may further include performing a first credit extension decision with respect to the first item, performing a second credit extension decision with respect to the second item, and providing, based on the first and second credit extension decisions, a financing offer to the user with respect to financing a transaction including both the first and second items. The financing offer includes item-level information regarding details of the first and second credit extension decisions.