Download Application development for CICS Web services by Chris Rayns; et al PDF

By Chris Rayns; et al

Show description

Read or Download Application development for CICS Web services PDF

Best enterprise applications books

The basics of S-plus

This ebook explains the fundamentals of S-PLUS in a transparent kind at a degree appropriate for individuals with little computing or statistical wisdom. in contrast to the S-PLUS manuals, it's not accomplished, yet in its place introduces an important rules of S-PLUS by using many examples. each one bankruptcy additionally features a choice of routines which are observed through absolutely worked-out ideas and unique reviews.

Software That Sells: A Practical Guide to Developing and Marketing Your Software Project

* Written by way of a professional with greater than 30 years of expertise in each position within the IT undefined, this publication confronts improvement technique difficulties head-on, and it tackles the severe steps that needs to be taken to make sure good fortune* Dives into themes reminiscent of picking possibilities, making plans for achievement, development a suitable enterprise version, assembling a staff, constructing software program, handling groups, and effectively advertising and marketing and promoting the product* The e-book fills a void within the present marketplace, and is a perfect learn for all IT pros

Collective Intelligence and E-Learning 2.0

With the appearance of internet 2. zero, e-learning has the aptitude to turn into way more own, social, and versatile. Collective Intelligence and E-Learning 2. zero: Implications of Web-Based groups and Networking presents a worthwhile connection with the most recent developments within the sector of academic know-how and e-learning.

Additional info for Application development for CICS Web services

Sample text

Work with the data in the segment. 6. Detach from the segment using the munmap subroutine: munmap( addr, len); The mmap services are specified by various standards and commonly used as the file-mapping interface of choice in other operating system implementations. However, the system's implementation of the mmap subroutine may differ from other implementations. The mmap subroutine incorporates the following modifications: • Mapping into the process private area is not supported. • Mappings are not implicitly unmapped.

3. 2 Mapped files with mmap When we are, in fact, mapping files, there are three more steps in the process compared with mapping memory. The steps are as follows: 1. Create a file descriptor for a file system object using: fp = open( pathname, permissions); 2. Determine the file length by using the lseek system call. For example: len = lseek(fildes, 0, 2) 3. Map the file into the process address space with the mmap subroutine. For example, to map the file for the file descriptor fp, starting at address addr, using len bytes of size, with the access permissions defined by prot and 0 bytes of offset, use a statement, such as: ptr = mmap(addr, len, prot, MAP_FILE, fp, 0) This specifies the creation of a new mapped file region by mapping the file associated with the fp file descriptor.

The process space is a 32-bit address space; that is, programs use 32-bit pointers. However, each process or interrupt handler can address only the system-wide virtual memory space (segment) whose segment IDs are in the segment register. A process can access more than 16 segments by changing registers rapidly. Chapter 2. 2 Segment Register addressing The system kernel loads some segment registers in the conventional way for all processes, implicitly providing the memory addressability needed by most processes.

Download PDF sample

Rated 4.55 of 5 – based on 25 votes