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Historically xstat_cm_test and xstat_fs_test have supported option '-period <mm>' to specify continuous operaiton for a length of time. If '-period 0' was specified, both programs exited immediately. Beginning with commits 2c1a7e47336c8f8d14dd6c65d53925a9e0e87c66 'xstat: add xstat_*_Wait functions' and 6b67cac432043a43d7cdfa6af972ab54412aff94 'convert xstat and friends to pthreads', xstat_cm_test and xstat_fs_test now support -period 0 to run "forever". This support is implemented in xstat_cm_Wait and xstat_fs_Wait, respectively. Although the "wait forever" logic was added to allow consolidation of similar code in afsmonitor, it also changed how xstat_cm_test and xstat_fs_test behave for '-period 0'. Unfortunately, there is a bug in this support, at least when running on pthreads. After the initial 24 minute timer expires, the while (1) will repeatedly run select with a timeout that is now 0. This causes the while loop to consume 100% of the CPU on which this thread is dispatched. Instead, modify the wait-forever logic to specify NULL for the select() timeout value. Also update the man page to document that '-period 0' means forever. Change-Id: I25d0d5be0eedb8bf3de495785b9b03a3e3d45221 Reviewed-on: https://gerrit.openafs.org/14366 Tested-by: BuildBot <buildbot@rampaginggeek.com> Reviewed-by: Benjamin Kaduk <kaduk@mit.edu>
What's in the "doc" subdirectory ** doc/man-pages pod sources for man pages (converted from original IBM html source). ** doc/xml xml sources for manuals (converted from original IBM html source). Note: The doc/xml/AdminRef uses doc/xml/AdminRef/pod2refentry to convert the pod man pages to xml for printing. pod goes directly to html just fine. ** doc/pdf Old Transarc (and possibly pre-Transarc) protocol and API documentation for which we have no other source. ** doc/txt Technical notes, Windows notes, and examples. ** doc/doxygen Configuration files for the doxygen tool to generate documentation from the annotated sources. See the 'dox' Makefile target in the top level Makefile.