1 files changed, 124 insertions, 0 deletions
diff --git a/src/components/utils/src/conditional_variable_boost.cc b/src/components/utils/src/conditional_variable_boost.cc
new file mode 100644
index 0000000000..c07b8284ea
--- /dev/null
+++ b/src/components/utils/src/conditional_variable_boost.cc
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2013, Ford Motor Company
+ * 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 the Ford Motor Company 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 HOLDER 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 "utils/conditional_variable.h"
+
+#include <errno.h>
+#include <time.h>
+
+#include "utils/lock.h"
+#include "utils/logger.h"
+
+namespace {
+const long kNanosecondsPerSecond = 1000000000;
+const long kMillisecondsPerSecond = 1000;
+const long kNanosecondsPerMillisecond = 1000000;
+}  // namespace
+
+namespace sync_primitives {
+
+CREATE_LOGGERPTR_GLOBAL(logger_, "Utils")
+
+ConditionalVariable::ConditionalVariable() {}
+
+ConditionalVariable::~ConditionalVariable() {}
+
+void ConditionalVariable::NotifyOne() {
+  cond_var_.notify_one();
+}
+
+void ConditionalVariable::Broadcast() {
+  cond_var_.notify_all();
+}
+
+bool ConditionalVariable::Wait(BaseLock& lock) {
+  // NOTE this grossness is due to boost mutex and recursive mutex not sharing a
+  // superclass
+
+  lock.AssertTakenAndMarkFree();
+  // What kind of lock are we ?
+  if (Lock* test_lock = dynamic_cast<Lock*>(&lock)) {
+    // Regular lock
+    cond_var_.wait<boost::mutex>(test_lock->mutex_);
+  } else if (RecursiveLock* test_rec_lock =
+                 dynamic_cast<RecursiveLock*>(&lock)) {
+    // Recursive lock
+    cond_var_.wait<boost::recursive_mutex>(test_rec_lock->mutex_);
+  } else {
+    // unknown, give up the lock
+    LOG4CXX_ERROR(logger_, "Unknown lock type!");
+    NOTREACHED();
+  }
+  lock.AssertFreeAndMarkTaken();
+
+  return true;
+}
+
+bool ConditionalVariable::Wait(AutoLock& auto_lock) {
+  BaseLock& lock = auto_lock.GetLock();
+  return Wait(lock);
+}
+
+ConditionalVariable::WaitStatus ConditionalVariable::WaitFor(
+    AutoLock& auto_lock, uint32_t milliseconds) {
+  BaseLock& lock = auto_lock.GetLock();
+
+  WaitStatus wait_status = kNoTimeout;
+  lock.AssertTakenAndMarkFree();
+  bool timeout = true;
+
+  // What kind of lock are we ?
+  if (Lock* test_lock = dynamic_cast<Lock*>(&lock)) {
+    // Regular lock
+    // cond_var_.wait<boost::mutex>(test_lock->mutex_);
+    timeout = cond_var_.timed_wait<boost::mutex>(
+        test_lock->mutex_, boost::posix_time::milliseconds(milliseconds));
+  } else if (RecursiveLock* test_rec_lock =
+                 dynamic_cast<RecursiveLock*>(&lock)) {
+    // Recursive lock
+    // cond_var_.wait<boost::recursive_mutex>(test_rec_lock->mutex_);
+    timeout = cond_var_.timed_wait<boost::recursive_mutex>(
+        test_rec_lock->mutex_, boost::posix_time::milliseconds(milliseconds));
+  } else {
+    // this is an unknown lock, we have an issue
+    LOG4CXX_ERROR(logger_, "Unknown lock type!");
+    NOTREACHED();
+  }
+
+  if (!timeout) {
+    wait_status = kTimeout;
+  }
+  lock.AssertFreeAndMarkTaken();
+
+  return wait_status;
+}
+
+}  // namespace sync_primitives