IBM Z Hardware and Operating Systems Ideas Portal


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Perform recovery for IO ABEND during read datasets through XL C/C++ read functions

If there are any members missed in a concatenation in JCL which start a C program may read data from the concatenated datasets, DFSMS would raise an S737-24 ABEND during read. LE should add recovery mechanism during reading and return errors to ap...
over 6 years ago in z/OS / LE 1 Not under consideration

PTHREAD library always emit error when SYSIN comes from SYSIN dataset and unconditionally opens SYSOUT

When our C++ application code make the first thread creation call to pthread_create() the language environment implementation unconditionally goes and opens the SYSIN and SYSOUT DDnames. Our application can, in most circumstances, already be readi...
over 6 years ago in z/OS / LE 4 Not under consideration

CPU accounting information reported as 0 in IIB, due to limitation in clock() function.

We run IBM Integration Bus on z/OS and use the accounting feature of the product. We use it for distributing the costs internally based on the usage for different message flows.The message flow that consumes the most CPU is reported as 0 CPU consu...
almost 7 years ago in z/OS / LE 3 Not under consideration

The clock() function that determines process time on z/OS needs to be increased or reset to zero after it reaches max value

We have a PMR 29022,082,000 opened with IBM Integration Bus V10 support about SMF CPU time not reporting correctly for some message flows. L3 found that the clock () function they were using to calculate processor time hit max value so they could ...
about 7 years ago in z/OS / LE 3 Not under consideration

refresh content by fflush()

In C/C++ Programin Guide, under the title “Buffering of C Streams” It is stated:If you are reading a record that another user is writing to at the same time, you can see the new data if you call fflush() to refresh the contents of the input buffer...
about 7 years ago in z/OS / LE 3 Not under consideration

C fopen() fails with errno 41 for VSAM VRRDS files; EDC5041I An error was detected at the system level when opening a file.

We have products that use the VSAM VRRDS file type. We would like to use Java and the JZOS Toolkit to open and read these files while remaining zIIP eligable. The JZOS Toolkit uses the C fopen() to open VSAM files and this fails for the VRRDS file...
over 7 years ago in z/OS / LE 1 Not under consideration

LE Callable Service for RegEx

RegEx is a basic service to validate that a string is a regular expression. It's been implemented in Java, C, C#, perl, and many others. It's used in ISPF. It even has a Wikipedia entry. It's not available in COBOL. Take the best implementation, e...
over 7 years ago in z/OS / LE 2 Not under consideration

Add HEAPZONES Setting in CICS LE Ceeropt Module

Hello,z/OS 2.1 introduced LE HEAPZONES Option to add a check zone to heap allocations.In Test-Batch I can default to a non-zero HEAPZONE in DD:CEEOPTS in JCL PROCs But this cannot be set at CICS Region level, except with CLER Transation after star...
over 7 years ago in z/OS / LE 7 Not under consideration

Fail to open RRDS (V) in C language program

It is failed to open a RRDS(V: variable record length), would you share me some experience on this, or help me to know what's wrong and how to deal with it? The "C" program is submitted through a JCL job in MVS. And someone else met with a similar...
almost 8 years ago in z/OS / LE 5 Not under consideration

Request new system call from LE on z/OS platform

We have a client who's using C++ collate transform() functions; and has reported an issue with its functionality. After our investigation, our development team has determined that in order to get the desired functionality, we rely on some new func...
over 8 years ago in z/OS / LE 3 Not under consideration

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