This patchset is an extension of the patch submitted here: https://cygwin.com/pipermail/cygwin-patches/2021q1/011060.html
That patch is included as the first patch in this set. The change to OPEN_MAX still needs testing to see if it has too much impact on the performance of tcsh. I've make a first attempt to implement the suggestion of adding a new <cygwin/limits.h> header. At this writing I'm not completely sure that I fully understand the purpose of that. My choice of which macros to define in it might need to be changed. Ken Brown (4): Cygwin: getdtablesize: always return OPEN_MAX_MAX Cygwin: sysconf, getrlimit: don't call getdtablesize Cygwin: remove the OPEN_MAX_MAX macro Cygwin: include/cygwin/limits.h: new header winsup/cygwin/dtable.cc | 8 +-- winsup/cygwin/dtable.h | 2 - winsup/cygwin/fcntl.cc | 2 +- winsup/cygwin/include/cygwin/limits.h | 65 ++++++++++++++++++++ winsup/cygwin/include/limits.h | 85 +++++++++++---------------- winsup/cygwin/resource.cc | 5 +- winsup/cygwin/syscalls.cc | 8 +-- winsup/cygwin/sysconf.cc | 11 +--- 8 files changed, 111 insertions(+), 75 deletions(-) create mode 100644 winsup/cygwin/include/cygwin/limits.h -- 2.30.0
