عنوان فایل ترجمه فارسی: امکانات ارتباطی برای سیستم های پردازشگر تراکنش های توزیعی.
عنوان نسخه انگلیسی: Communication Facilities for Distributed Transaction-Processing Systems
مرتبط با رشته های : فناوری اطلاعات و کامپیوتر
تعداد صفحات مقاله فارسی: ۱۲ صفحه
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قسمتی از متن انگلیسی:
Ports. Processes communicate through
ports, which are the basic communication abstraction. These ports reside
in a memory segment shared by the process and kernel address spaces.
Thus, data can be exchanged without copying. This method reduces copying
by 50 percent compared with other kernel-based IPC methods. The mapped
memory segment contains a transmission buffer and a set of receiving
buffers. The number and length of these buffers are specified by a
process at the time it opens a port. The receiving buffers form a
circular queue, which is coherently managed by the kernel and the
process according to the conventional producer/consumer paradigm.
Associated with the transmission buffer and each of the receiving
buffers is an integer, which specifies the actual length of the message.
In addition, there is a counter for the number of active messages
(messages that have arrived, but which the server has not yet
processed)
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