text: /*
   *
   * Copyright 2015, Google Inc.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   *     * Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above
   * copyright notice, this list of conditions and the following disclaimer
   * in the documentation and/or other materials provided with the
   * distribution.
   *     * Neither the name of Google Inc. nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   */
  
  #include "src/core/iomgr/workqueue.h"
  
  #include <grpc/grpc.h>
  #include <grpc/support/log.h>
  
  #include "test/core/util/test_config.h"
  
  static grpc_pollset g_pollset;
  
  static void must_succeed(grpc_exec_ctx *exec_ctx, void *p, int success) {
    GPR_ASSERT(success == 1);
    gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset));
    *(int *)p = 1;
    grpc_pollset_kick(&g_pollset, NULL);
    gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset));
  }
  
  static void test_ref_unref(void) {
    grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
    grpc_workqueue *wq = grpc_workqueue_create(&exec_ctx);
    GRPC_WORKQUEUE_REF(wq, "test");
    GRPC_WORKQUEUE_UNREF(&exec_ctx, wq, "test");
    GRPC_WORKQUEUE_UNREF(&exec_ctx, wq, "destroy");
    grpc_exec_ctx_finish(&exec_ctx);
  }
  
  static void test_add_closure(void) {
    grpc_closure c;
    int done = 0;
    grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
    grpc_workqueue *wq = grpc_workqueue_create(&exec_ctx);
    gpr_timespec deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5);
    grpc_pollset_worker worker;
    grpc_closure_init(&c, must_succeed, &done);
  
    grpc_workqueue_push(wq, &c, 1);
    grpc_workqueue_add_to_pollset(&exec_ctx, wq, &g_pollset);
  
    gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset));
    GPR_ASSERT(!done);
    grpc_pollset_work(&exec_ctx, &g_pollset, &worker,
                      gpr_now(deadline.clock_type), deadline);
    gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset));
    grpc_exec_ctx_finish(&exec_ctx);
    GPR_ASSERT(done);
  
    GRPC_WORKQUEUE_UNREF(&exec_ctx, wq, "destroy");
    grpc_exec_ctx_finish(&exec_ctx);
  }
  
  static void test_flush(void) {
    grpc_closure c;
    int done = 0;
    grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
    grpc_workqueue *wq = grpc_workqueue_create(&exec_ctx);
    gpr_timespec deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5);
    grpc_pollset_worker worker;
    grpc_closure_init(&c, must_succeed, &done);
  
    grpc_exec_ctx_enqueue(&exec_ctx, &c, 1);
    grpc_workqueue_flush(&exec_ctx, wq);
    grpc_workqueue_add_to_pollset(&exec_ctx, wq, &g_pollset);
  
    gpr_mu_lock(GRPC_POLLSET_MU(&g_pollset));
    GPR_ASSERT(!done);
    grpc_pollset_work(&exec_ctx, &g_pollset, &worker,
                      gpr_now(deadline.clock_type), deadline);
    gpr_mu_unlock(GRPC_POLLSET_MU(&g_pollset));
    grpc_exec_ctx_finish(&exec_ctx);
    GPR_ASSERT(done);
  
    GRPC_WORKQUEUE_UNREF(&exec_ctx, wq, "destroy");
    grpc_exec_ctx_finish(&exec_ctx);
  }
  
  static void destroy_pollset(grpc_exec_ctx *exec_ctx, void *p, int success) {
    grpc_pollset_destroy(p);
  }
  
  int main(int argc, char **argv) {
    grpc_closure destroyed;
    grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
    grpc_test_init(argc, argv);
    grpc_init();
    grpc_pollset_init(&g_pollset);
  
    test_ref_unref();
    test_add_closure();
    test_flush();
  
    grpc_closure_init(&destroyed, destroy_pollset, &g_pollset);
    grpc_pollset_shutdown(&exec_ctx, &g_pollset, &destroyed);
    grpc_exec_ctx_finish(&exec_ctx);
    grpc_shutdown();
    return 0;
  }
  