src: replace clock_gettime()/gettimeofday() with g_get_real_time()
g_get_real_time() returns the time since epoch in microseconds. It uses gettimeofday() internally while libvirt used clock_gettime because it is declared async signal safe. In practice gettimeofday is also async signal safe *provided* the timezone parameter is NULL. This is indeed the case in g_get_real_time(). Reviewed-by: NFabiano Fidêncio <fidencio@redhat.com> Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>
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