timeval.cc 2.6 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768
  1. /*
  2. *
  3. * Copyright 2015, Google Inc.
  4. * All rights reserved.
  5. *
  6. * Redistribution and use in source and binary forms, with or without
  7. * modification, are permitted provided that the following conditions are
  8. * met:
  9. *
  10. * * Redistributions of source code must retain the above copyright
  11. * notice, this list of conditions and the following disclaimer.
  12. * * Redistributions in binary form must reproduce the above
  13. * copyright notice, this list of conditions and the following disclaimer
  14. * in the documentation and/or other materials provided with the
  15. * distribution.
  16. * * Neither the name of Google Inc. nor the names of its
  17. * contributors may be used to endorse or promote products derived from
  18. * this software without specific prior written permission.
  19. *
  20. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31. *
  32. */
  33. #include <limits>
  34. #include <cstdint>
  35. #include "grpc/grpc.h"
  36. #include "grpc/support/time.h"
  37. #include "timeval.h"
  38. namespace grpc {
  39. namespace node {
  40. gpr_timespec MillisecondsToTimespec(double millis) {
  41. if (millis == std::numeric_limits<double>::infinity()) {
  42. return gpr_inf_future(GPR_CLOCK_REALTIME);
  43. } else if (millis == -std::numeric_limits<double>::infinity()) {
  44. return gpr_inf_past(GPR_CLOCK_REALTIME);
  45. } else {
  46. return gpr_time_from_micros(static_cast<int64_t>(millis * 1000),
  47. GPR_CLOCK_REALTIME);
  48. }
  49. }
  50. double TimespecToMilliseconds(gpr_timespec timespec) {
  51. timespec = gpr_convert_clock_type(timespec, GPR_CLOCK_REALTIME);
  52. if (gpr_time_cmp(timespec, gpr_inf_future(GPR_CLOCK_REALTIME)) == 0) {
  53. return std::numeric_limits<double>::infinity();
  54. } else if (gpr_time_cmp(timespec, gpr_inf_past(GPR_CLOCK_REALTIME)) == 0) {
  55. return -std::numeric_limits<double>::infinity();
  56. } else {
  57. return (static_cast<double>(timespec.tv_sec) * 1000 +
  58. static_cast<double>(timespec.tv_nsec) / 1000000);
  59. }
  60. }
  61. } // namespace node
  62. } // namespace grpc