mozglue/misc/ConditionVariable_noop.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/Assertions.h"
   8
   9 #include "mozilla/PlatformConditionVariable.h"
  10 #include "mozilla/PlatformMutex.h"
  11 #include "MutexPlatformData_noop.h"
  12
  13 using mozilla::TimeDuration;
  14
  15 struct mozilla::detail::ConditionVariableImpl::PlatformData {};
  16
  17 mozilla::detail::ConditionVariableImpl::ConditionVariableImpl() {}
  18
  19 mozilla::detail::ConditionVariableImpl::~ConditionVariableImpl() {}
  20
  21 void mozilla::detail::ConditionVariableImpl::notify_one() {}
  22
  23 void mozilla::detail::ConditionVariableImpl::notify_all() {}
  24
  25 void mozilla::detail::ConditionVariableImpl::wait(MutexImpl&) {
  26   // On WASI, there are no threads, so we never wait (either the condvar must
  27   // be ready or there is a deadlock).
  28 }
  29
  30 mozilla::CVStatus mozilla::detail::ConditionVariableImpl::wait_for(
  31     MutexImpl&, const TimeDuration&) {
  32   return CVStatus::NoTimeout;
  33 }
  34
  35 mozilla::detail::ConditionVariableImpl::PlatformData*
  36 mozilla::detail::ConditionVariableImpl::platformData() {
  37   static_assert(sizeof platformData_ >= sizeof(PlatformData),
  38                 "platformData_ is too small");
  39   return reinterpret_cast<PlatformData*>(platformData_);
  40 }