IBM Z Hardware and Operating Systems Ideas Portal


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LE

LE to allow UNIX System Services to interrupt an LE program utilizing Pause/Release

LE to allow UNIX System Services to interrupt an LE program utilizing Pause/Release. System: LE on z/OS USS Actor: SAP support experts or any other USS C code developer with the necessity to debug the stack trace of a process SAP support experts w...
almost 6 years ago in z/OS / LE Future consideration

LE to surface correct information when 31/64 bit code is incorretly used via DLL

* if 31/64 bit code in intermixed in a non supported manner (DLL)* message "EDC5206S DLL module name too long" is shown * The correct information (CEE3587S A call was made to a function in the AMODE 31 DLL //FU018J from an AMODE 64 caller)surfaces...
almost 10 years ago in z/OS / LE Future consideration

have CEEZ1IPT fail more gracefully

When an application is using PIPI, and the PIPI Main code creates children but then completes back to PIPI, future services that need the IPT will fail with an Abend0C4 in CEEZ1IPT due to not getting a CAA address from CEEARLU.CEEZ1IPT needs valid...
over 5 years ago in z/OS / LE Future consideration

LE's Heap Latch should be FIFO, not LIFO

Serialization via LIFO has the negative effect of leaving the first task in to never obtain the resource when processing is very busy. FIFO allowed everyone the chance to get in and get out with little delays even during a busy time.
about 7 years ago in z/OS / LE Future consideration

Monitor the z/OS Language Environment Heap Usage

The usage/allocation of the LE Heap storage would affect the performance of the IBM CMOD product that is using it. In the reported case, when the LE Heap is not properly tuned, high CPU consumed by the CMOD address space is observed. Although the ...
over 8 years ago in z/OS / LE Future consideration

LE Load Notification User exit : Add RMODE indicator values to CEEFLG in CEELNUE csect

In the LE Load Notification User exit it would be very valuable to identify the RMODE of the program which caused the exit to be accessed. 24-bit and even 31-bit storage can be exhausted in environments with many architectural modules for IMS appl...
about 9 years ago in z/OS / LE Future consideration

Enhance authentication APIs to support returning Identity tokens and accepting them for authentication

RACF recently (z/OS v2R4 and PTF'ed back to z/OS v2R2) added the ability for RACF to return identity tokens which are actually JSON Web Tokens (JWTs) and to be able to use them in lieu of a password for authentication. Can APIs, such as __passwd()...
over 5 years ago in z/OS / LE Future consideration

C fopen() SMS attributes to create a file

We use Zfile class to access Z/OS file using Java. Zfile use fopen to manage Z/OS files. Unfortunatelly fopen() C primitive doesn't have MGMTCLAS, DATACLAS, STORCLAS SMS JCL attributes. So with Zfile, i can use SMS attributes to allocate an SMS fi...
over 1 year ago in z/OS / LE Future consideration

Support Posix semaphores

The Posix semaphore mechanism (defined by these APIs: sem_open/sem_close/sem_unlink/sem_trywait/sem_wait/sem_timedwait/sem_post/sem_init/sem_destroy/sem_getvalue) is an alternative to the XSI semaphore mechanism currently implemented in z/OS. Posi...
over 7 years ago in z/OS / LE Future consideration

LE to support volume specification when referencing data sets as files

Allow specification of volume name with file name for services like fopen For example -- to open data set SYS1.PARMLIB member IEAIPL02 on volume D16PK2 as a file specify something like this: "//'SYS1.PARMLIB(IEAIPL02)[D16PK2]'"
almost 2 years ago in z/OS / LE Future consideration

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