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Portable C library for getting monotonic time
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ThomasHabets/monotonic_clock
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monotonic_clock/README By Thomas Habets <thomas@habets.se> 2010 What ---- Provides access to a clock that always increases at the same rate. Unlike the system time (e.g. gettimeofday()) this will never decrease. However, if there's no monotonic clock on your system then this library will fall back to gettimeofday(). For more information see: https://blog.habets.se/2010/09/gettimeofday-should-never-be-used-to-measure-time.html Portability ----------- Verified to be working: Linux clock_gettime() OpenBSD clock_gettime() Solaris clock_gettime() MacOS X mach_absolute_time() Using monotonic_clock in a project ---------------------------------- You can either install it like a normal shared library: ``` ./configure make sudo make install ``` Or import it into your project as a git submodule: ``` cd /path/to/project git submodule add https://github.com/ThomasHabets/monotonic_clock.git git submodule init git submodule update ``` Add to configure.ac: ``` AC_CONFIG_SUBDIRS([monotonic_clock]) AC_SEARCH_LIBS([clock_gettime], [rt]) ``` Add to Makefile.am: ``` SUBDIRS=monotonic_clock AM_CFLAGS=-I$(top_builddir)/monotonic_clock/include @AM_CFLAGS@ myproghere_LDADD=$(top_builddir)/monotonic_clock/.libs/libmonotonic_clock.a ``` -------------------------------------------------------------------------- Send questions/suggestions/patches/rants/0days to synscan@googlegroups.com
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