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In this paper, firstly we propose a novel architecture called DBCSUEE to adapt embedded Chromium browser with Docker container virtualization as its sandboxing mechanism to isolate processes. Using this kind of container-level virtualization in browsers guarantees web applications operate in a secure environment, and gives the browser a more efficient resource management scheme applicable to multi-application situation. Secondly, when implementing the scheme, communication among applications running in their own containers becomes a problem and needs to be solved. Chromium's existing inter-process communication mechanism cannot be used. Thus, we propose a new communication scheme based on named pipe, which allows two web applications to communicate with each other without closing their containers.

In an ever-changing landscape of adversary tactics, techniques and procedures (TTPs), malware remains the tool of choice for attackers to gain a foothold on target systems. The Mitre ATT&CK framework is a taxonomy of adversary TTPs. It is meant to advance cyber threat intelligence (CTI) by establishing a generic vocabulary to describe post-compromise adversary behavior. This paper discusses the results of automated analysis of a sample of 951 Windows malware families, which have been plotted on the ATT&CK framework. Based on the framework’s tactics and techniques we provide an overview of established techniques within Windows malware and techniques which have seen increased adoption over recent years. Within our dataset we have observed an increase in techniques applied for fileless execution of malware, discovery of security software and DLL side-loading for defense evasion. We also show how a sophisticated technique, command and control (C&C) over IPC named pipes, is getting adopted by less sophisticated actor groups. Through these observations we have identified how malware authors are innovating techniques in order to bypass established defenses.

The Java programming language provides a comprehensive set of multithreading programming techniques but currently lacks interprocess communication (IPC) facilities, other than slow socket-based communication mechanisms (which are intended primarily for distributed systems, not interprocess communication on a multicore or multiprocessor system). This is problematic due to the ubiquity of modern multicore processors, and the widespread use of Java as a programming language throughout the software development industry. This work aimed to address this problem by utilising Microsoft Windows’ native IPC mechanisms through a framework known as the Java Native Interface. This enabled the use of native C code that invoked the IPC mechanisms provided by Windows, which allowed successful synchronous communication between separate Java processes. The results obtained illustrate the performance dichotomy between socket-based communication and native IPC facilities, with Windows’ facilities providing significantly faster communication. Ultimately, these results show that there are far more effective communication structures available. In addition, this work presents generic considerations that may aid in the eventual design of a generic, platform-independent IPC system for the Java programming language. The fundamental considerations include shared memory with semaphore synchronisation, named pipes and a socket communication model.

In this paper we investigate the use of Unix named pipes and an in-memory datagrid to reduce the I/O requirements of conventional and exploratory genomics processing pipelines. Apache Spark provides an in-memory framework for distributed computational genomics that has realized significant improvements over conventional pipelines in speed and flexibility. Even in the Spark framework, however, pipeline components create I/O bottlenecks by reading and writing intermediate files that are later discarded. Apache Ignite provides a framework for persisting a Spark dataset in memory between modular pipeline applications, and Unix named pipes have long provided a mechanism by which data can be transferred in-memory. We compared the runtime performance of a standard genomics pipeline that transmits Spark data using named pipes and/or Ignite's in-memory datagrid. Our results demonstrate that Ignite can improve the runtime performance of in-memory RDD actions and that keeping pipeline components in memory with Ignite and named pipes eliminates a major I/O bottleneck.

As an important part of the smart grid, smart meters and advanced metering infrastructures are given the newly missions connected network. Along with Ethernet development smart meters with measurements and networks, meter with BOA can become reality. In this paper a system of smart meter BOA and its smart meter networking has developed. It has real time displays and storage of smart meter data. The system uses a ARM9 (S3C2440) chip with a Linux operation system. Gathering from breaker via RS232, Data are sent to BOA server through named pipes to be displayed on web. At the same time, these data are stored in embed data base SQLite, for feature managements.

Current computer-aided engineering applications (CAx) only allow a single user to create/manipulate geometry and prepare the model/assembly for analysis at a given time. These engineering applications do not support multiple users to make changes to the model/assembly simultaneously. Though there are some collaborative tools embedded within these applications, they are limited to simple interactions such as screen sharing, conference calling, instant messaging, etc. In the Product Development (PD) cycle, a considerable amount of time is spent in preparing the model/assembly for Finite Element Analysis (FEA). This paper discusses the architectural considerations that were taken into account to allow multiple users to work on the same model in CUBIT (a commercial FEA mesh generation software).

Lots of information including vary raw materials components and mechanical properties should be involved in the electrode design process. It was very difficult to manage them. In this article, an effective solution by simulating the artificial design process of electrode was presented in the design of intelligent electrode design system (IEDS). That successfully realized series functions such as electrode formula management, electrode intelligent design. Shared file, named pipe, and file mapping were proposed to solve the communication problem between design module and prediction module which were developed by using different languages and platforms.

Based on the traditional Human-Computer Interaction method which is mainly touch input system, the way of capturing the movement of people by using cameras is proposed. This is a convenient technique which can provide users more experience. In the article, a new way of detecting moving things is given on the basis of development of the image processing technique. The system architecture decides that the communication should be used between two different applications. After considered, named pipe is selected from many ways of communication to make sure that video is keeping in step with the movement from the analysis of the people moving. According to a large amount of data and principal knowledge, thinking of the need of actual project, a detailed system design and realization is finished. The system consists of three important modules: detecting of the people's movement, information transition between applications and video showing in step with people's movement. The article introduces the idea of each module and technique.

Similarly to message queues, pipes offer another mechanism for intertask communication. An unnamed pipe is typically used between processes that are related by either a parent-child relationship or a sibling relationship. A named pipe is a persistent file object, which is typically used between processes that are not necessarily related. Each pipe has two ends, one for writing and one for reading. The read operation on a pipe can be blocked if the pipe is empty, and the write operation on a pipe can be blocked if the available space is not sufficient to hold the data to be written. In a POSIX-compliant operating system implementation, the write operation on a pipe is atomic when the data to be written are no more than the maximum capacity defined by PIPE_BUF. The POSIX select operation allows a task to simultaneously block on several pipes until any one of them becomes ready for reading or writing.

A new construction method named pipe curtain using for traversing fault of deep mine roadway was presented in detail. During the pipe curtain method, the pipes connected by shackles were jacked into the surrounding rock, and then the grout injection system in the pipes would grout slurry into the pipe joints and the broken surrounding rocks, which would finally form a curtain around the roadway. In order to further indicate the using effect of this new method, taking the part of traversing fault for conveyor roadway of Guqiao coal mine in Huainan mine area as an example, the deformation characteristics of surrounding rocks were simulated by the finite difference method (FLAC) by both the pipe curtain construction methods and the traditional support methods. Furthermore, the comparison work between the two methods mentioned above was carried out at the same time. The results show that the deformation of surrounding rocks using pipe curtain construction methods is very low and more uniform. Therefore, it can be proposed that using the pipe curtain construction methods would solve the problems during crossing fault such as roof fall and floor heave more effectively.

The application of network communication in the field of engineering monitoring software has been very common, but most of them used a network communication mode. This paper introduces the multiple network communication modes (asynchronous network socket communication, wave communication, named pipe communication and mail slot communication) to communicate according to the specific requirements of the project, and each of communication mode features is well applied to engineering practice to meet the requirements of engineering, so as to improve the efficiency of the communication. Key words-network socket; network communication; multiwave; named pipe

This paper presents the design and implementation of a DQDB network emulator, developed at Lancaster University. The emulator uses standard Unix processes and System V named pipes to create a model of a Distributed Queue Dual Bus subnetwork of a Metropolitan Area Network. Apart from gaining insights into the DQDB protocol implementation based on a finite state machine model, the goals of the work reported in this paper included the performance evaluation of DQDB networks and the provisioning of a suitable platform to investigate various isochronous service management issues. The paper provides results on the operations of the distributed queue state machines and on the performance evaluation of DQDB networks. Finally, future developments of the emulator are identified.

A concurrent object-oriented programming (COOP) model is presented for computer-aided engineering using a blackboard architecture. The basic components of the model are a hierarchy of tasks, global and local controllers, knowledge sources, global and local blackboards, controlling data slots, and numerical data slots. For interprocess communications, named pipes, message queues, and shared memory are used. The model is implemented in C + + on a simulated concurrent processing platform using the system functions provided by UNIX operating system. The COOP model is applied to a complex engineering problem, analysis of high-performance composite laminates and performance results are reported.

A large number of functional modules are involved in seismic data processing, only under unified control of the execution control system such a complex systematic project with these functional modules in seismic data processing can be completed, and pipeline technology in existing computer operating system can support the control of single channel operation, but can't realize the control of multi-channel operation. This paper presented an execution and control method of multi-channel operation based on named pipe and redirection technology, which realized the control of complex multi-channel operation, and implemented the processing of multiple data streams in PBS through the combination of PBS with execution and control procedures. The application experiment results show that this method has strengthened the capability of system to execute and control operations, and improved the efficiency of seismic data processing.

Publisher Summary Nagios 3 has many performances, object configuration, and CGI front-end enhancements. Object configuration inheritance has improved and extended. Objects are the defined monitoring and notification logical units within a Nagios configuration. The objects that make up a Nagios configuration include services, service groups, hosts, host groups, contacts, contact groups, commands, time periods, notification escalations, notification dependencies, and execution dependencies. Nagios supports service and host dependencies with service and host escalations. One can add arbitrary custom variables to services and hosts and access those variables in notifications and service and host checks. In addition, the CGI front end has special sub tabs for unhandled service, host, and network problems. The performance data output subsystem is very flexible and can even write to named pipes. The Nagios event broker (NEB) subsystem has been improved and enhanced. A number of new performance tuning features and tweaks can be used to help optimize the performance of Nagios installation.

Summary: ANDY (seArch coordination aND analYsis) is a set of Perl programs and modules for distributing large biological database searches, and in general any sequence of commands, across the nodes of a Linux computer cluster. ANDY is compatible with several commonly used distributed resource management (DRM) systems, and it can be easily extended to new DRMs. A distinctive feature of ANDY is the choice of either dedicated or fair-use operation: ANDY is almost as efficient as single-purpose tools that require a dedicated cluster, but it runs on a general-purpose cluster along with any other jobs scheduled by a DRM. Other features include communication through named pipes for performance, flexible customizable routines for error-checking and summarizing results, and multiple fault-tolerance mechanisms. Availability: ANDY is freely available and can be obtained from Contact: brenner@compbio.berkeley.edu Supplementary information: Supplemental data, figures, and a more detailed overview of the software are found at

Experimentation with several methods of providing efficient communication facilities for distributed database systems is described. These studies give insight into the delays incurred by applications running on distributed systems. Five different mechanisms for local interprocess communications (two variations with message queues, named pipes, shared memory, and UDP sockets) have been implemented, compared, and analyzed. The most efficient of these is three times as fast as UDP for 1000-byte messages. Kernel-level software multicast and hardware multicast have also been implemented and their performance analyzed. The results show the significant advantage of using these techniques instead of using multiple sends and receives at the user level. The design of a facility that allows the dynamic addition of user-level protocols such as two-phase commit, clock synchronization, etc. to an operating system kernel is presented. The facility is based on a simple stack-based language that provides the functionality and security required. >

The aim of the work described in this paper is to model an ultrasonic data communications link between a base station and a remotely operated vehicle (ROV), named Pipe Rover, inside a water filled pipe. Due to the complex interaction between the ROV and the environmental components, an emphasis is placed on the simulation of the acoustic channel. The authors present results derived from the mathematical modeling of the pipe system and its inter-relationship with the sensor beam patterns.

In designing a complex ASIC it is often the case that adequate testing cannot be performed without modeling the high level environment where the ASIC will eventually reside. One approach for developing these models is to write a description of the environment in the native simulation language (Verilog or VHDL) that is being used to develop the ASIC. While designing a complex ATM network interface chip with a PCI bus interface it became necessary to develop a driver model to check correctness of operation. We decided to develop a co-design environment which would allow us to develop a real driver (in C++) which would interact with the current hardware model in RTL. This would benefit the project in two ways. First the driver writer would not need to learn a new language and could re-use code, and secondly, there would be a fully developed driver when the chip was ready to be tested. This approach, which uses UNIX named pipes and signals, allowed us to have driver software written before the chip had been manufactured and facilitated our regression methodology. This paper describes the architecture of the simulation interface.

The non-excavation technology was adopted for the construction of a six-lane underpass section of Shanghai Middle Ring Project after taking into account the environmental and existing ground conditions. To construct a sizable underpass in saturated soft soil, surface subsidence control is required. The underpass section with shallow overburden of 4.5-5m has a length of 126m, a width of 34.2m and a height of 7.85m. A new method named Pipe Roof-Box Culvert Jacking (RBJ) therefore was proposed for the building of the underpass structure. The pipe roof was composed of 80 pieces of 970mm pipes and constructed by slurry pipe jacking method. This worked like a guide tunnel, whereas the box culvert jacking was constructed inside the pipe roof structure. This new method has advantages of being reliable and cost effective. This paper elaborates the key technologies and the main procedures involving this new method. The mechanism and result of the method is discussed based on the data of site instrumentation. This paper could be used as a reference for both construction and design of similar projects in future. (A) This paper was presented at Safety in the underground space - Proceedings of the ITA-AITES 2006 World Tunnel Congress and the 32nd ITA General Assembly, Seoul, Korea, 22-27 April 2006. For the covering abstract see ITRD E129148. "Reprinted with permission from Elsevier".

This chapter will concentrate on traditional and new interprocess communication (IPC) mechanisms of UNIX. Files, signals, pipes (unnamed pipes) and named pipes (FIFOs), are the traditional IPC facilities. The new powerful IPC facilities are the message queues, shared memory segments and semaphores. This chapter will also introduce a number of other system commands which are vital for the development of UNIX products.