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             : /* Test of gpr thread local storage support. */
      35             : 
      36             : #include <stdio.h>
      37             : #include <stdlib.h>
      38             : #include <grpc/support/log.h>
      39             : #include <grpc/support/sync.h>
      40             : #include <grpc/support/thd.h>
      41             : #include <grpc/support/tls.h>
      42             : #include "test/core/util/test_config.h"
      43             : 
      44             : #define NUM_THREADS 100
      45             : 
      46             : GPR_TLS_DECL(test_var);
      47             : 
      48    34602384 : static void thd_body(void *arg) {
      49             :   gpr_intptr i;
      50             : 
      51    34602384 :   GPR_ASSERT(gpr_tls_get(&test_var) == 0);
      52             : 
      53   206801108 :   for (i = 0; i < 10000000; i++) {
      54   206801008 :     gpr_tls_set(&test_var, i);
      55   206801008 :     GPR_ASSERT(gpr_tls_get(&test_var) == i);
      56             :   }
      57         100 :   gpr_tls_set(&test_var, 0);
      58         100 : }
      59             : 
      60             : /* ------------------------------------------------- */
      61             : 
      62           1 : int main(int argc, char *argv[]) {
      63           1 :   gpr_thd_options opt = gpr_thd_options_default();
      64             :   int i;
      65             :   gpr_thd_id threads[NUM_THREADS];
      66             : 
      67           1 :   grpc_test_init(argc, argv);
      68             : 
      69             :   gpr_tls_init(&test_var);
      70             : 
      71           1 :   gpr_thd_options_set_joinable(&opt);
      72             : 
      73         101 :   for (i = 0; i < NUM_THREADS; i++) {
      74         100 :     gpr_thd_new(&threads[i], thd_body, NULL, &opt);
      75             :   }
      76         101 :   for (i = 0; i < NUM_THREADS; i++) {
      77         100 :     gpr_thd_join(threads[i]);
      78             :   }
      79             : 
      80             :   gpr_tls_destroy(&test_var);
      81             : 
      82           1 :   return 0;
      83             : }