blob: 1828b1f719beb5dd95b45a2ce7cde003a15c0acd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
* 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
|
