Bus type inter-process communication method
A technology of inter-process communication and process communication, which is applied in the field of bus-type inter-process fast communication under Unix or Linux, can solve the problems that the disk file processing speed cannot be too fast, the system resources are limited, and there is no occurrence, so as to meet the requirements of fast data exchange, The effect of fast data exchange rate and stable performance
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[0080] Now use the following specific examples and combine Figure 1 to Figure 6 , the method for bus-type inter-process communication of the present invention will be described in detail, so as to understand its features and effects.
[0081] In order to realize fast data exchange between processes, shared memory technology and semaphore collection technology are used comprehensively. Shared memory provides a "place" for fast access to data, and the set of semaphores acts as a "semaphore" for data arrival. Such as figure 1 As shown, it is the composition diagram of the entire process communication memory block, and an area with a size of 1024×(8×26+1)=209K bytes is opened in the memory; this memory area is divided into 8×26+1=209 It is a 1K memory slot; the label is 0#-208#, of which the 0# memory slot is dedicated to the status word (101), and the 1#-208# memory slot is used as a data storage area for process communication, and each 8 is divided into 1 group, the address ...
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