Line data    Source code

       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             : 
      34             : #include <grpc++/support/config.h>
      35             : 
      36             : #ifndef GRPC_CXX0X_NO_CHRONO
      37             : 
      38             : #include <grpc/support/time.h>
      39             : #include <grpc++/support/time.h>
      40             : 
      41             : using std::chrono::duration_cast;
      42             : using std::chrono::nanoseconds;
      43             : using std::chrono::seconds;
      44             : using std::chrono::system_clock;
      45             : using std::chrono::high_resolution_clock;
      46             : 
      47             : namespace grpc {
      48             : 
      49     3405396 : void Timepoint2Timespec(const system_clock::time_point& from,
      50             :                         gpr_timespec* to) {
      51     3405396 :   system_clock::duration deadline = from.time_since_epoch();
      52     3432216 :   seconds secs = duration_cast<seconds>(deadline);
      53    13681008 :   if (from == system_clock::time_point::max() ||
      54    13640679 :       secs.count() >= gpr_inf_future(GPR_CLOCK_REALTIME).tv_sec ||
      55     3440126 :       secs.count() < 0) {
      56           4 :     *to = gpr_inf_future(GPR_CLOCK_REALTIME);
      57     3410332 :     return;
      58             :   }
      59     3439814 :   nanoseconds nsecs = duration_cast<nanoseconds>(deadline - secs);
      60     3408771 :   to->tv_sec = (time_t)secs.count();
      61     3415905 :   to->tv_nsec = (int)nsecs.count();
      62     3410324 :   to->clock_type = GPR_CLOCK_REALTIME;
      63             : }
      64             : 
      65           0 : void TimepointHR2Timespec(const high_resolution_clock::time_point& from,
      66             :                           gpr_timespec* to) {
      67           0 :   high_resolution_clock::duration deadline = from.time_since_epoch();
      68           0 :   seconds secs = duration_cast<seconds>(deadline);
      69           0 :   if (from == high_resolution_clock::time_point::max() ||
      70           0 :       secs.count() >= gpr_inf_future(GPR_CLOCK_REALTIME).tv_sec ||
      71           0 :       secs.count() < 0) {
      72           0 :     *to = gpr_inf_future(GPR_CLOCK_REALTIME);
      73           0 :     return;
      74             :   }
      75           0 :   nanoseconds nsecs = duration_cast<nanoseconds>(deadline - secs);
      76           0 :   to->tv_sec = (time_t)secs.count();
      77           0 :   to->tv_nsec = (int)nsecs.count();
      78           0 :   to->clock_type = GPR_CLOCK_REALTIME;
      79             : }
      80             : 
      81          15 : system_clock::time_point Timespec2Timepoint(gpr_timespec t) {
      82          15 :   if (gpr_time_cmp(t, gpr_inf_future(t.clock_type)) == 0) {
      83           5 :     return system_clock::time_point::max();
      84             :   }
      85          10 :   t = gpr_convert_clock_type(t, GPR_CLOCK_REALTIME);
      86          10 :   system_clock::time_point tp;
      87          10 :   tp += duration_cast<system_clock::time_point::duration>(seconds(t.tv_sec));
      88          20 :   tp +=
      89          30 :       duration_cast<system_clock::time_point::duration>(nanoseconds(t.tv_nsec));
      90          10 :   return tp;
      91             : }
      92             : 
      93             : }  // namespace grpc
      94             : 
      95             : #endif  // !GRPC_CXX0X_NO_CHRONO