Skip to: Abstract | Comments | Solution | Migration | Download
APAR NUMBER: PJ29957 PRODUCT: TPF4 FUNCTIONAL AREA: ISO-C SUPPORT SHIPPED IN PUT: 19 ABSTRACT: This is a single-source APAR to backfit time zone (TZ) environment variable support from the next release back to TPF 4.1. APAR CONTENTS: FEATURE TYPE STATUS NAME Base Object Changed obj/oco/ccint40.o Base Object Changed obj/oco/cgmtme40.o Base Object Changed obj/oco/cmktme40.o Base Object New obj/oco/cotzst40.o Base Object Changed obj/oco/csftme40.o Base Object Changed obj/oco/csptme40.o Base Object Changed obj/oco/cstlcl40.o Base BldScript Changed source/rt/base/cisobs.bsc PREREQUISITE APARS: To be applied in order listed. Base Object Changed obj/oco/ccint40.o PJ25589(09) PJ21337(12) PJ27367(14) Base Object Changed obj/oco/cgmtme40.o PJ21337(12) Base Object Changed obj/oco/cmktme40.o PJ21337(12) Base Object Changed obj/oco/csftme40.o PJ21337(12) Base Object Changed obj/oco/csptme40.o PJ21337(12) Base Object Changed obj/oco/cstlcl40.o PJ21337(12) PJ27786(15) Base BldScript Changed source/rt/base/cisobs.bsc PJ28649(17) COMMENTS: Currently, the TZ environment variable is not supported on TPF 4.1. The time zone information is obtained from the LC_TOD category of the current locale. The LC_TOD locale category is not supported in the next release. SOLUTION: C support library (CISO) is modified to add support for the TZ environment variable. If the TZ environment variable is set, the local time zone information will be taken from it. If not, LC_TOD continues to be supported and used in TPF 4.1. The value of the TZ environment variable will specify the locale time zone and time difference/offset from GMT (called Universal Reference Time or Greenwich Mean Time). Where needed, it also can specify daylight saving time zone name, offset, start, and end of daylight saving time, specifying when daylight saving time should be in effect. This information can be used to map universal reference times to local times. The TZ environment variable is set by using the setenv function; for example: setenv("TZ", "EST+5EDT,M4.1.0/2,M10.5.0/2",1) This specifies the Eastern time zone in the United States, which is 5 hours behind Coordinated Universal Time (UTC), including the daylight saving time and the dates when daylight saving time will start (first Sunday in April at 2:00 a.m. M4.1.0/2) and end (last Sunday in October at 2:00 a.m. M10.5.0/2). If the offset for daylight saving time is omitted, it then defaults to 1 hour ahead of standard time (as in the previous example). The offset for time zone and daylight saving time can be in the form hh[:mm[:ss]] setenv("TZ","AFT+04:30",1), setenv("TZ", "EST+5EDT01:00,M4.1.0/2,M10.5.0/2",1) If daylight saving time is not observed in the local time zone, the name and offset for the daylight saving time zone is not specified; for example: setenv("TZ","WEST-1",1) This specifies the Western European standard time zone, which is 1 hour ahead of Coordinated Universal Time (UTC). DEPENDENCIES SEGMENTS TO BE ASSEMBLED OR COMPILED: None. SEGMENTS TO BE LINK EDITED: ciso40.exe (Shipped in Tar File) COREQS: None. MIGRATION CONSIDERATIONS: None. UPDATED INFORMATION UNITS: TPF Application Programming See your IBM representative if you need additional information. DOWNLOAD INSTRUCTIONS: http://www.ibm.com/software/htp/tpf/pages/maint.htm -- END APAR PJ29957
Download file(s): Login once to access server, leave window open, then click on link(s) below.Source Binary