TCP/IP (Parallel Library) Configuration and Management Manual

Introduction

HP NonStop TCP/IP (Parallel Library) Configuration and Management Manual—522271-006

2-12

PTrace

TCP/IP library, TCP/IP retains the context of the application while processing the

request.

Locating the SRL

In general, the Parallel Library TCP/IP SRL is located in the current SYSnn subvolume

or in the same system subvolume as the system image file (OSIMAGE). You can ask

your system administrator for the current SYSnn subvolume or you can find the

OSIMAGE file by entering one of the following TACL commands:

>FILEINFO $SYSTEM.SYS*.OSIMAGE

>STATUS 0,0

Once you know the location of the SYSnn, you also know the location of the SRL. The

procedures in this manual have you use the TACL VOLUME command to ensure that

you are located in the SYSnn where the SRL is located before issuing the OBEY

command on the TACL command file. The TACL command file only specifies the file

name (ZTCPSRL) for the SRL location and the system fills in your current location. By

only specifying the file name of the SRL (ZTCPSRL) in the command file and following

the procedure to ensure you are in the correct volume, you are assured of properly

adding the SRL DEFINE.

Programmatic Interfaces to the SRL

Socket-program environments should be set up to use the correct SRL. Socket

programs started in the same TACL command environment as the DEFINE inherit the

DEFINE for the correct SRL (see Example 1-1

on page 1-8 and Example 1-2 on

page 1-14). However, socket programs started in different TACL command

environments need to either use a programmatic process-create or specify the

SRL in the RUN command used to start the socket program. Alternatively, you can

place the DEFINE for the SRL in the $SYSTEM.SYSTEM.TACLLOCL file so that all

TACL users inherit the DEFINE.

PTrace

The PTrace product module formats the trace data records.

SCF

The SCF product module provides the command-line interface for managing the

Parallel Library TCP/IP subsystem. Figure 2-4 shows a high-level view of the Parallel

Caution. Parallel Library TCP/IP uses a private shared runtime library (SRL). If you run

programs that use private SRLs and you are running Parallel Library TCP/IP, do not create

private SRLs that overlap the following memory segments: 0x75800000 through 0X759FFFFF

and 0x7FE00000 through 0x7FE1FFFF. In addition, QIO reserves 0x20000000 through

0x41FFFFFF