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Nicolas Nobleb7ebd3b2014-11-26 16:33:03 -08001/*
2 *
Craig Tiller06059952015-02-18 08:34:56 -08003 * Copyright 2015, Google Inc.
Nicolas Nobleb7ebd3b2014-11-26 16:33:03 -08004 * 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
34#include "src/cpp/util/time.h"
35
36#include <grpc/support/time.h>
37
38using std::chrono::duration_cast;
39using std::chrono::nanoseconds;
40using std::chrono::seconds;
41using std::chrono::system_clock;
42
43namespace grpc {
44
Yang Gao6baa9b62015-03-17 10:49:39 -070045void Timepoint2Timespec(const system_clock::time_point& from,
46 gpr_timespec* to) {
Nicolas Nobleb7ebd3b2014-11-26 16:33:03 -080047 system_clock::duration deadline = from.time_since_epoch();
48 seconds secs = duration_cast<seconds>(deadline);
Yang Gaocdb2a6e2015-03-20 23:55:04 -070049 if (from == system_clock::time_point::max() ||
50 secs.count() >= gpr_inf_future.tv_sec || secs.count() < 0) {
51 *to = gpr_inf_future;
52 return;
53 }
Nicolas Nobleb7ebd3b2014-11-26 16:33:03 -080054 nanoseconds nsecs = duration_cast<nanoseconds>(deadline - secs);
55 to->tv_sec = secs.count();
56 to->tv_nsec = nsecs.count();
57}
58
yangg87da1b92014-12-11 15:57:37 -080059system_clock::time_point Timespec2Timepoint(gpr_timespec t) {
yangged5e7e02015-01-06 10:16:15 -080060 if (gpr_time_cmp(t, gpr_inf_future) == 0) {
61 return system_clock::time_point::max();
62 }
Nicolas Nobleb7ebd3b2014-11-26 16:33:03 -080063 system_clock::time_point tp;
rsilvera081e3202014-12-16 15:57:35 -080064 tp += duration_cast<system_clock::time_point::duration>(seconds(t.tv_sec));
65 tp +=
66 duration_cast<system_clock::time_point::duration>(nanoseconds(t.tv_nsec));
Nicolas Nobleb7ebd3b2014-11-26 16:33:03 -080067 return tp;
68}
69
Craig Tiller190d3602015-02-18 09:23:38 -080070} // namespace grpc