blob: 388ccc179c1710fe6351907905e61e1ed25f31bc (
plain) (
blame)
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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
//===--------------------- TimeSpecTimeout.h --------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef utility_TimeSpecTimeout_h_
#define utility_TimeSpecTimeout_h_
#include "lldb/Host/TimeValue.h"
namespace lldb_private {
class TimeSpecTimeout
{
public:
TimeSpecTimeout() :
m_infinite (false)
{
m_timespec.tv_sec = 0;
m_timespec.tv_nsec = 0;
}
~TimeSpecTimeout()
{
}
//----------------------------------------------------------------------
/// Sets the timespec pointer correctly given a timeout relative to the
/// current time. This function should be called immediately prior to
/// calling the function you will use this timeout with since time can
/// elapse between when this function is called and when the timeout is
/// used.
///
/// @param[in] timeout_usec
/// The timeout in micro seconds. If timeout_usec is UINT32_MAX, the
/// timeout should be set to INFINITE. Otherwise the current time is
/// filled into the timespec and \a timeout_usec is added to the
/// current time.
///
/// @return
/// If the timeout is INFINITE, then return NULL, otherwise return
/// a pointer to the timespec with the appropriate timeout value.
//----------------------------------------------------------------------
const struct timespec *
SetAbsoluteTimeoutMircoSeconds32 (uint32_t timeout_usec);
//----------------------------------------------------------------------
/// Sets the timespec pointer correctly given a relative time in micro
/// seconds.
///
/// @param[in] timeout_usec
/// The timeout in micro seconds. If timeout_usec is UINT32_MAX, the
/// timeout should be set to INFINITE. Otherwise \a timeout_usec
/// is correctly placed into the timespec.
///
/// @return
/// If the timeout is INFINITE, then return NULL, otherwise return
/// a pointer to the timespec with the appropriate timeout value.
//----------------------------------------------------------------------
const struct timespec *
SetRelativeTimeoutMircoSeconds32 (uint32_t timeout_usec);
//----------------------------------------------------------------------
/// Gets the timespec pointer that is appropriate for the timeout
/// specified. This function should only be used after a call to
/// SetRelativeTimeoutXXX() functions.
///
/// @return
/// If the timeout is INFINITE, then return NULL, otherwise return
/// a pointer to the timespec with the appropriate timeout value.
//----------------------------------------------------------------------
const struct timespec *
GetTimeSpecPtr () const
{
if (m_infinite)
return nullptr;
return &m_timespec;
}
protected:
struct timespec m_timespec;
bool m_infinite;
};
} // namespace lldb_private
#endif // #ifndef utility_TimeSpecTimeout_h_
|
