METHOD OF CONTROLLING READING FROM SHARED MEMORY RESOURCE AND WRITING TO IT (VERSIONS), SYSTEM AND COMPUTER-READABLE MEDIUM IMPLEMENTING SAID METHOD Russian patent published in 2024 - IPC G06F9/52 

FIELD: physics.

SUBSTANCE: invention relates to methods, a system and a data medium for controlling reading-writing of a shared memory resource. In the method, when a request for reading a shared memory resource or for writing to a shared memory resource occurs, performing an attempt to capture a read mutex and/or a write mutex, respectively, by performing a compare and swap (CAS) operation on the current value of the indicator, at that, upon successful execution of the CAS operation, a change in the value of the indicator tending from zero is performed, wherein, if said request, for which the CAS operation has been successfully performed, is a write request, then additionally setting the sign of the changed value of said indicator to the first sign, for each request, the value of said sign is checked and if the checked value of said sign is equal to a predetermined value, performing writing to the shared memory resource according to the write request from the author, if the checked value of the said indicator with a sign is different from the said predetermined value, performing reading from a shared memory resource according to a read request from a reader, upon completion of the write or read operation, the read mutex or the write mutex are released, respectively, by performing a CAS operation on the current value of the indicator, at which a change in the value of the indicator tending to zero is performed.

EFFECT: high efficiency of read and write operations of a shared resource.

19 cl, 4 dwg