forked from OSchip/llvm-project
91 lines
3.2 KiB
C++
91 lines
3.2 KiB
C++
//===--------------------- 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 NULL;
|
|
return &m_timespec;
|
|
}
|
|
|
|
protected:
|
|
struct timespec m_timespec;
|
|
bool m_infinite;
|
|
};
|
|
|
|
} // namespace lldb_private
|
|
|
|
#endif // #ifndef utility_TimeSpecTimeout_h_
|