blob: dd639ffa59c20a748879ba238c77fa3214abdacd (
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
|
// Copyright (C) 2013-2015 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <config.h>
#include <gtest/gtest.h>
#include <sys/select.h>
#include <cstddef>
namespace isc {
namespace util {
namespace unittests {
unsigned char
parentReadState(int fd) {
unsigned char result = 0xff;
fd_set rfds;
FD_ZERO(&rfds);
FD_SET(fd, &rfds);
struct timeval tv = {5, 0};
const int nfds = select(fd + 1, &rfds, NULL, NULL, &tv);
EXPECT_EQ(1, nfds);
if (nfds == 1) {
// Read status
const ssize_t bytes_read = read(fd, &result, sizeof(result));
EXPECT_EQ(sizeof(result), bytes_read);
}
return (result);
}
}
}
}
|