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-rw-r--r--src/common/eventfd.cpp64
1 files changed, 64 insertions, 0 deletions
diff --git a/src/common/eventfd.cpp b/src/common/eventfd.cpp
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+++ b/src/common/eventfd.cpp
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+/*
+ * Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the License);
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * @file eventfd.cpp
+ * @author Jaemin Ryu (jm77.ryu@samsung.com)
+ * @version 1.0
+ * @brief
+ */
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <exception>
+#include <system_error>
+#include <cstdint>
+
+#include "eventfd.h"
+
+namespace CCHECKER {
+
+EventFD::EventFD(unsigned int initval, int flags)
+{
+ fd = ::eventfd(initval, flags);
+ if (fd == -1) {
+ throw std::logic_error("EventFd from constructor is failed!!");
+ }
+}
+
+EventFD::~EventFD()
+{
+ if (fd != -1) {
+ ::close(fd);
+ }
+}
+
+void EventFD::send()
+{
+ const std::uint64_t val = 1;
+ if (::write(fd, &val, sizeof(val)) == -1) {
+ throw std::logic_error("EventFd send to fd is failed!!");
+ }
+}
+
+void EventFD::receive()
+{
+ std::uint64_t val;
+ if (::read(fd, &val, sizeof(val)) == -1) {
+ throw std::logic_error("EventFd read to fd is failed!!");
+ }
+}
+
+} // namespace CCHECKER