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Patch from Mikko Koppanen for #LIBZMQ-301

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Add the '-Ae' flag and check for gethrtime() on HPUX

Check if CLOCK_MONOTONIC defined before using it - if not, use
gethrtime() if it's available, otherwise fall back to the old
behavior.

Signed-off-by: AJ Lewis <aj.lewis@quantum.com>
This commit is contained in:
AJ Lewis 2012-01-19 12:27:19 -06:00
parent 6f32361fea
commit 2e0c4330fa
2 changed files with 8 additions and 2 deletions
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2
configure.in
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@ -174,6 +174,8 @@ case "${host_os}" in
# Define on HP-UX to enable all library features
CPPFLAGS="-D_POSIX_C_SOURCE=200112L $CPPFLAGS"
AC_DEFINE(ZMQ_HAVE_HPUX, 1, [Have HPUX OS])
LIBZMQ_CHECK_LANG_FLAG_PREPEND([-Ae])
AC_CHECK_FUNCS(gethrtime)
;;
*mingw32*)
AC_DEFINE(ZMQ_HAVE_WINDOWS, 1, [Have Windows OS])

8
src/clock.cpp
View File

@ -34,7 +34,7 @@
#include <sys/time.h>
#endif
#if defined HAVE_CLOCK_GETTIME
#if defined HAVE_CLOCK_GETTIME || defined HAVE_GETHRTIME
#include <time.h>
#endif
@ -65,7 +65,7 @@ uint64_t zmq::clock_t::now_us ()
double ticks_div = (double) (ticksPerSecond.QuadPart / 1000000);
return (uint64_t) (tick.QuadPart / ticks_div);
#elif defined HAVE_CLOCK_GETTIME
#elif defined HAVE_CLOCK_GETTIME && defined CLOCK_MONOTONIC
// Use POSIX clock_gettime function to get precise monotonic time.
struct timespec tv;
@ -73,6 +73,10 @@ uint64_t zmq::clock_t::now_us ()
errno_assert (rc == 0);
return (tv.tv_sec * (uint64_t) 1000000 + tv.tv_nsec / 1000);
#elif defined HAVE_GETHRTIME
return (gethrtime () / 1000);
#else
// Use POSIX gettimeofday function to get precise time.