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Chapter 3 ATMI type C API COBOL API Comments Buffer-related tpconvert() - Transforms the structures to/from a string tpconvmb() - Transforms the encoded characters in an input buffer to a named target tpexport() - Transforms a typed buffer into an exportable, machineindependent string, which embraces encryption seals and digital signatures Security and administration System errorhandling tpcryptpw() - Administrative request to encrypt an application's password tpgetadmkey() - To get an administrative authentication key tuxgetenv() - Returns a value for environment variables set for Tuxedo tuxputenv() - To dynamically add/ change a value to the environment variable tpadmcall() - Administers may use this to retrieve and update the attributes of a service tpstrerror() - To capture an error message for a Tuxedo ATMI tpstrerrordetail() - To capture the detailed error message for a Tuxedo ATMI userlog() USERLOG To write a message (error or warning) from any Tuxedo application to the system's central log [ 75 ] www.it-ebooks.info
Development of Tuxedo – Various APIs The C language interface for the previously mentioned interfaces makes use of the full range of C language features—pointer, allocation of buffer, C data structure, and so on. The COBOL interfaces provide similar semantics and functionality as that of the C interfaces. The COBOL programmer will find it comfortable to use these semantics. In our book, we will only be describing all the ATMI interfaces for the C language. Developing a Tuxedo client A client is an application program that initiates requests in the Tuxedo application. This can be built in different platforms (for example, in both terminal and graphical interfaces). A client has to join the application before it can make any request to a server/service and must leave the application before exiting. There are basically two types of clients: • Native client: This runs on the same platform as the Tuxedo domain, meaning it is attached locally • Workstation (WS) client: This runs on a different machine and joins over the network to a Tuxedo application running on a different machine The design, coding, and operation of these two types of clients are the same—the ATMI for both are identical. There are some differences in the way these clients are compiled using the buildclient command, which will be described later. Your client application uses tpinit() to attach to a Tuxedo application and tpterm() to detach from it. When a client joins an application, a username and client name can be passed to the tpinit() structure; these are string values of up to 30 characters. The user and client name are used to identify a client program in several important ways: • Security: This is used when the application security is configured on a peruser-password basis; the client program must provide a password that matches the password for the user/client • Administration: The administrator can see who is connected to the application • Communication: Either one or all the clients can be communicated to via their individual name using tpbrodcast()/tpnotify() [ 76 ] www.it-ebooks.info
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Getting Started with Oracle Tuxedo
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About the Author Biru Chattopadhaya
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Table of Contents The NETGROUPS sec
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Table of Contents Configuration of
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Preface What this book covers Chapt
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Preface When we wish to draw your a
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Getting Started with Tuxedo Some of
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Getting Started with Tuxedo Tuxedo
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Getting Started with Tuxedo • Dis
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Getting Started with Tuxedo Install
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Getting Started with Tuxedo Install
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Getting Started with Tuxedo Summary
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Configuration and Administration of
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Configuration and Administration of
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tpunadvertise() 74 tpunsubscribe()
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