Communication method between ap layer and sp layer in lfs system and lfs system

A communication method and SPI interface technology, applied in the financial field, can solve problems such as data concurrent access errors, system migration, and low security of banking business, and achieve the effect of reducing the number of data replication and ensuring compatibility

Active Publication Date: 2019-10-18
武汉深之度科技有限公司
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  • Abstract
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Problems solved by technology

[0002] At present, the vast majority of financial terminal equipment, such as ATM machines, etc., follow the CEN / XFS (Comité Européen de Normalization / eXtensions for Financial Services) specification based on the Windows operating system, and the CEN / XFS specification is an extended specification for financial services formulated by the European Standardization Committee , is closely related to the Windows system, has a strong operating system binding feature, and cannot be directly migrated to other systems, and the Windows system is less secure for banking business
[0003] With the gradual application of the Linux system in more and more fields, an XFS implementation system based on the Linux system has appeared, which is referred to as the LFS (Linux Financial Services) system, but the relationship between the AP layer and the SP layer in this type of system In terms of the communication method, it is completely inconsistent with the shared memory-based method in the XFS implementation method under the Windows system, which will bring additional system migration problems
Moreover, the lock mechanism is ambiguous. If the lock mechanism is not used, it will cause data concurrent access errors. If the lock mechanism is used, the system performance will decrease due to the large lock granularity, and the unreliable lock mechanism between processes may cause deadlock. lock, causing the entire system to work abnormally

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  • Communication method between ap layer and sp layer in lfs system and lfs system

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[0025] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0026] figure 1 A schematic diagram of a communication method 100 between an AP layer and an SP layer in an LFS system according to an embodiment of the present invention is shown. The communication method 100 between the AP layer and the SP layer in the LFS system is suitable for execution in a financial terminal device, where the LFS system resides, including an AP layer, an LFS manager, an SP layer, and a device driver layer. A...

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Abstract

The invention discloses a communication method between AP (Applications) layer and SP (Service Providers) layer in LFS (Logical File System) as well as LFS. The LFS comprises the AP layer, an LFS manager, the SP layer and an equipment driving layer. The communication method between the AP layer and the SP layer in the LFS comprises the following steps: the AP layer is arranged to register a dbus of the current AP progress to a dbus daemon process and invoke the LFS manager to connect the SP layer; the LFS manager is arranged to position an SP progress related to the current AP progress in the SP layer according to an invoking instruction of the AP layer; the SP layer is arranged to access to the equipment driving layer to acquire equipment information corresponding to the SP progress; the SP layer is arranged to acquire a thread lock and a progress lock of a shared memory in turn, invoke the LFS manager to write the equipment information in the shared memory, and release the progress lock and the thread lock in turn; the SP layer is arranged to be connected with the dbus daemon process through the dbus, and transmit a dbus message that is generated according to the equipment information to the AP layer through the dbus daemon process; and the AP layer is arranged to acquiring the thread lock and the progress lock of the shared memory in turn, invoke the LFS manager to release the shared memory, and release the progress lock and the thread lock in turn after acquiring the equipment information from received dbus message.

Description

technical field [0001] The invention relates to the field of financial technology, in particular to a communication method between an AP layer and an SP layer in an LFS system and the LFS system. Background technique [0002] At present, most financial terminal equipment, such as ATM machines, etc., follow the CEN / XFS (Comité Européen de Normalization / eXtensions for Financial Services) specification based on the Windows operating system, and the CEN / XFS specification is an extended specification for financial services formulated by the European Standardization Committee , is closely related to the Windows system, has a strong operating system binding feature, and cannot be directly migrated to other systems, and the Windows system is less secure for banking business. [0003] With the gradual application of the Linux system in more and more fields, an XFS implementation system based on the Linux system has appeared, which is referred to as the LFS (Linux Financial Services) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/54
Inventor 张磊
Owner 武汉深之度科技有限公司
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