Method and apparatus for managing buffering of data packet of network card, terminal and storage medium

A terminal for managing buffering of data packets of a network card, the terminal comprising:

• a processor and
• a memory, wherein the memory is configured to store a computer program;
• and the processor is configured to call the computer program from the memory and run the computer program to cause the terminal to execute following operations:
• S1, setting ring buffer queues, setting a length of each ring buffer queue according to a size of a total buffer space and the number of threads of an upper-layer application, then setting a buffer pool formed by two ring buffer queues, and setting the two ring buffer queues in the buffer pool as a busy queue and an idle queue, respectively;
• S2, receiving, by a network card driver, data packets from a data link, classifying the data packets, sequentially buffering the classified data packets into the busy queue by using a write pointer of the busy queue, and then sequentially mapping addresses of the buffered data packets in the busy queue into the idle queue;
• S3, acquiring latest addresses of the buffered data packets in the busy queue by using a read pointer of the idle queue;
• S4, sequentially acquiring, by the upper-layer application, the buffered data packets by using a read pointer of the busy queue and processing the data packets, and after processing of the data packets is completed, sequentially releasing addresses of the processed buffered data packets in the busy queue by using a write pointer of the idle queue;
• and
• S5, acquiring the read pointer and the write pointer of the busy queue and the read pointer and the write pointer of the idle queue in real time, and according to relationships between the read pointer and the write pointer of the busy queue in real time and between the read pointer and the write pointer of the idle queue in real time, determining a state of the buffered data packets in the buffer pool, and whether an additional buffer pool needs to be set.

A non-transitory storage medium, wherein the storage medium stores instructions, when running on a computer, executed the instructions by a processor to perform following operations:

• S1, setting ring buffer queues, setting a length of each ring buffer queue according to a size of a total buffer space and the number of threads of an upper-layer application, then setting a buffer pool formed by two ring buffer queues, and setting the two ring buffer queues in the buffer pool as a busy queue and an idle queue, respectively;
• S2, receiving, by a network card driver, data packets from a data link, classifying the data packets, sequentially buffering the classified data packets into the busy queue by using a write pointer of the busy queue, and then sequentially mapping addresses of the buffered data packets in the busy queue into the idle queue;
• S3, acquiring latest addresses of the buffered data packets in the busy queue by using a read pointer of the idle queue;
• S4, sequentially acquiring, by the upper-layer application, the buffered data packets by using a read pointer of the busy queue and processing the data packets, and after processing of the data packets is completed, sequentially releasing addresses of the processed buffered data packets in the busy queue by using a write pointer of the idle queue;
• and
• S5, acquiring the read pointer and the write pointer of the busy queue and the read pointer and the write pointer of the idle queue in real time, and according to relationships between the read pointer and the write pointer of the busy queue in real time and between the read pointer and the write pointer of the idle queue in real time, determining a state of the buffered data packets in the buffer pool, and whether an additional buffer pool needs to be set.