refs #5120 forgot to add toku_time.cc

git-svn-id: file:///svn/toku/tokudb@50925 c7de825b-a66e-492c-adef-691d508d4ae1

portability/toku_time.cc

+/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
+#ident "$Id$"
+#ident "Copyright (c) 2007-2012 Tokutek Inc.  All rights reserved."
+
+#include "toku_time.h"
+
+#if !defined(HAVE_CLOCK_REALTIME)
+
+#include <errno.h>
+#include <mach/clock.h>
+#include <mach/mach.h>
+
+int toku_clock_gettime(clockid_t clk_id, struct timespec *ts) {
+    if (clk_id != CLOCK_REALTIME) {
+        // dunno how to fake any of the other types of clock on osx
+        return EINVAL;
+    }
+    // We may want to share access to cclock for performance, but that requires
+    // initialization and destruction that's more complex than it's worth for
+    // OSX right now.  Some day we'll probably just use pthread_once or
+    // library constructors.
+    clock_serv_t cclock;
+    mach_timespec_t mts;
+    host_get_clock_service(mach_host_self(), REALTIME_CLOCK, &cclock);
+    clock_get_time(cclock, &mts);
+    mach_port_deallocate(mach_task_self(), cclock);
+    ts->tv_sec = mts.tv_sec;
+    ts->tv_nsec = mts.tv_nsec;
+    return 0;
+}
+#else // defined(HAVE_CLOCK_REALTIME)
+
+#include <time.h>
+int toku_clock_gettime(clockid_t clk_id, struct timespec *ts) {
+    return clock_gettime(clk_id, ts);
+}
+
+#endif