918 ////////////////////////////////////////////////////////////////////////////////
919 // time support
920
921 // Time since start-up in seconds to a fine granularity.
922 // Used by VMSelfDestructTimer and the MemProfiler.
923 double os::elapsedTime() {
924
925 return (double)(os::elapsed_counter()) * 0.000001;
926 }
927
928 jlong os::elapsed_counter() {
929 timeval time;
930 int status = gettimeofday(&time, NULL);
931 return jlong(time.tv_sec) * 1000 * 1000 + jlong(time.tv_usec) - initial_time_count;
932 }
933
934 jlong os::elapsed_frequency() {
935 return (1000 * 1000);
936 }
937
938 // XXX: For now, code this as if BSD does not support vtime.
939 bool os::supports_vtime() { return false; }
940 bool os::enable_vtime() { return false; }
941 bool os::vtime_enabled() { return false; }
942 double os::elapsedVTime() {
943 // better than nothing, but not much
944 return elapsedTime();
945 }
946
947 jlong os::javaTimeMillis() {
948 timeval time;
949 int status = gettimeofday(&time, NULL);
950 assert(status != -1, "bsd error");
951 return jlong(time.tv_sec) * 1000 + jlong(time.tv_usec / 1000);
952 }
953
954 #ifndef CLOCK_MONOTONIC
955 #define CLOCK_MONOTONIC (1)
956 #endif
957
958 #ifdef __APPLE__
959 void os::Bsd::clock_init() {
960 // XXXDARWIN: Investigate replacement monotonic clock
961 }
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918 ////////////////////////////////////////////////////////////////////////////////
919 // time support
920
921 // Time since start-up in seconds to a fine granularity.
922 // Used by VMSelfDestructTimer and the MemProfiler.
923 double os::elapsedTime() {
924
925 return (double)(os::elapsed_counter()) * 0.000001;
926 }
927
928 jlong os::elapsed_counter() {
929 timeval time;
930 int status = gettimeofday(&time, NULL);
931 return jlong(time.tv_sec) * 1000 * 1000 + jlong(time.tv_usec) - initial_time_count;
932 }
933
934 jlong os::elapsed_frequency() {
935 return (1000 * 1000);
936 }
937
938 bool os::supports_vtime() { return true; }
939 bool os::enable_vtime() { return false; }
940 bool os::vtime_enabled() { return false; }
941
942 double os::elapsedVTime() {
943 // better than nothing, but not much
944 return elapsedTime();
945 }
946
947 jlong os::javaTimeMillis() {
948 timeval time;
949 int status = gettimeofday(&time, NULL);
950 assert(status != -1, "bsd error");
951 return jlong(time.tv_sec) * 1000 + jlong(time.tv_usec / 1000);
952 }
953
954 #ifndef CLOCK_MONOTONIC
955 #define CLOCK_MONOTONIC (1)
956 #endif
957
958 #ifdef __APPLE__
959 void os::Bsd::clock_init() {
960 // XXXDARWIN: Investigate replacement monotonic clock
961 }
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