Merge pull request #2460 from vjpai/exposed_pool

Make thread_pool.h a public header

2 files changed, 69 insertions, 0 deletions

diff --git a/include/grpc++/fixed_size_thread_pool.h b/include/grpc++/fixed_size_thread_pool.h
new file mode 100644
index 0000000000..9f0cbfbae9
--- /dev/null
+++ b/include/grpc++/fixed_size_thread_pool.h
@@ -0,0 +1,67 @@
+/*
+ *
+ * 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.
+ *
+ */
+
+#ifndef GRPC_INTERNAL_CPP_SERVER_THREAD_POOL_H
+#define GRPC_INTERNAL_CPP_SERVER_THREAD_POOL_H
+
+#include <grpc++/config.h>
+
+#include <grpc++/impl/sync.h>
+#include <grpc++/impl/thd.h>
+#include <grpc++/thread_pool_interface.h>
+
+#include <queue>
+#include <vector>
+
+namespace grpc {
+
+class FixedSizeThreadPool GRPC_FINAL : public ThreadPoolInterface {
+ public:
+  explicit FixedSizeThreadPool(int num_threads);
+  ~FixedSizeThreadPool();
+
+  void ScheduleCallback(const std::function<void()>& callback) GRPC_OVERRIDE;
+
+ private:
+  grpc::mutex mu_;
+  grpc::condition_variable cv_;
+  bool shutdown_;
+  std::queue<std::function<void()>> callbacks_;
+  std::vector<grpc::thread*> threads_;
+
+  void ThreadFunc();
+};
+
+}  // namespace grpc
+
+#endif  // GRPC_INTERNAL_CPP_SERVER_THREAD_POOL_H
diff --git a/include/grpc++/thread_pool_interface.h b/include/grpc++/thread_pool_interface.h
index ead307f6a2..ac4458d530 100644
--- a/include/grpc++/thread_pool_interface.h
+++ b/include/grpc++/thread_pool_interface.h
@@ -47,6 +47,8 @@ class ThreadPoolInterface {
   virtual void ScheduleCallback(const std::function<void()>& callback) = 0;
 };
 
+ThreadPoolInterface* CreateDefaultThreadPool();
+
 }  // namespace grpc
 
 #endif  // GRPCXX_THREAD_POOL_INTERFACE_H