netcdf-c/unit_test/CMakeLists.txt
Dennis Heimbigner 90fd1406bc Make use of clock_gettime be conditional.
Re: GH Issue https://github.com/Unidata/netcdf-c/issues/1900

Apparently the clock_gettime() function is not always available.
It is used in unit_test/tst_exhash.c and unit_test/tst_xcache.c.

To solve this, a number of things were changed:
* Move the timing code to a new file unit_tests/timer_utils.[ch]
* Modify the timing code to choose one of several timing methods
depending on availability. The prioritized order is as follows:
    1. If Windows, use the QueryPerformanceCounter mechanism else
    2. Use clock_gettime if available else
    3. Use gettimeofday if available else
    4. Use getrusage if available

Note that the resolution of 3 and 4 is less than 1 or 2.

Misc. Other Changes:
* Move the test in CMakeLists.txt that disables unit tests for WIN32 to unit_test/CMakeLists.txt since some unit tests actually work under Visual Studio.
* Fix some of the unit tests to work under visual studio
* Fix problem with using remove() in zmap_nzf.c
* Remove some warning about use of EXTERNL
2020-12-06 18:19:53 -07:00

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CMake

# Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
# 2015, 2016, 2017, 2018, 2019
# University Corporation for Atmospheric Research/Unidata.
# See netcdf-c/COPYRIGHT file for more info.
# This is the cmake build file for unit_test/ directory.
# @author Ward Fisher
# Currently (August 21, 2019): Some tests will not work with
# Visual Studio. The unit tests are for internal netCDF functions,
# so we don't want to make them external, which would be required to
# run on Windows.
SET(UNIT_TESTS test_ncuri test_pathcvt)
IF(NOT MSVC)
IF(ENABLE_NETCDF_4)
SET(UNIT_TESTS ${UNIT_TESTS} tst_nclist tst_nc4internal)
ENDIF(ENABLE_NETCDF_4)
ENDIF(NOT MSVC)
FOREACH(CTEST ${UNIT_TESTS})
add_bin_test(unit_test ${CTEST})
ENDFOREACH()
# Performance tests
add_bin_test(unit_test tst_exhash timer_utils.c)
add_bin_test(unit_test tst_xcache timer_utils.c)