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/port_platform.h>
      35             : 
      36             : #ifdef GPR_POSIX_SYNC
      37             : 
      38             : #include <errno.h>
      39             : #include <time.h>
      40             : #include <grpc/support/log.h>
      41             : #include <grpc/support/sync.h>
      42             : #include <grpc/support/time.h>
      43             : 
      44     9989777 : void gpr_mu_init(gpr_mu* mu) { GPR_ASSERT(pthread_mutex_init(mu, NULL) == 0); }
      45             : 
      46     7471547 : void gpr_mu_destroy(gpr_mu* mu) { GPR_ASSERT(pthread_mutex_destroy(mu) == 0); }
      47             : 
      48   159048179 : void gpr_mu_lock(gpr_mu* mu) { GPR_ASSERT(pthread_mutex_lock(mu) == 0); }
      49             : 
      50   222959350 : void gpr_mu_unlock(gpr_mu* mu) { GPR_ASSERT(pthread_mutex_unlock(mu) == 0); }
      51             : 
      52   170455075 : int gpr_mu_trylock(gpr_mu* mu) {
      53   170455075 :   int err = pthread_mutex_trylock(mu);
      54   187211907 :   GPR_ASSERT(err == 0 || err == EBUSY);
      55   187211907 :   return err == 0;
      56             : }
      57             : 
      58             : /*----------------------------------------*/
      59             : 
      60        3364 : void gpr_cv_init(gpr_cv* cv) { GPR_ASSERT(pthread_cond_init(cv, NULL) == 0); }
      61             : 
      62        2712 : void gpr_cv_destroy(gpr_cv* cv) { GPR_ASSERT(pthread_cond_destroy(cv) == 0); }
      63             : 
      64     2518640 : int gpr_cv_wait(gpr_cv* cv, gpr_mu* mu, gpr_timespec abs_deadline) {
      65     2518640 :   int err = 0;
      66     2518640 :   if (gpr_time_cmp(abs_deadline, gpr_inf_future(abs_deadline.clock_type)) ==
      67             :       0) {
      68     2477119 :     err = pthread_cond_wait(cv, mu);
      69             :   } else {
      70             :     struct timespec abs_deadline_ts;
      71       41521 :     abs_deadline = gpr_convert_clock_type(abs_deadline, GPR_CLOCK_REALTIME);
      72       41521 :     abs_deadline_ts.tv_sec = abs_deadline.tv_sec;
      73       41521 :     abs_deadline_ts.tv_nsec = abs_deadline.tv_nsec;
      74       41521 :     err = pthread_cond_timedwait(cv, mu, &abs_deadline_ts);
      75             :   }
      76     2518640 :   GPR_ASSERT(err == 0 || err == ETIMEDOUT || err == EAGAIN);
      77     2518640 :   return err == ETIMEDOUT;
      78             : }
      79             : 
      80       16647 : void gpr_cv_signal(gpr_cv* cv) { GPR_ASSERT(pthread_cond_signal(cv) == 0); }
      81             : 
      82     1058267 : void gpr_cv_broadcast(gpr_cv* cv) {
      83     1058267 :   GPR_ASSERT(pthread_cond_broadcast(cv) == 0);
      84     1058267 : }
      85             : 
      86             : /*----------------------------------------*/
      87             : 
      88      340514 : void gpr_once_init(gpr_once* once, void (*init_function)(void)) {
      89      340514 :   GPR_ASSERT(pthread_once(once, init_function) == 0);
      90      340539 : }
      91             : 
      92             : #endif /* GRP_POSIX_SYNC */