lldb_private::trace_intel_pt::DecodedThread::NanosecondsRange Struct Reference

A structure that represents a maximal range of trace items associated to the same non-interpolated timestamps in nanoseconds. More...

#include <DecodedThread.h>

Public Member Functions
double	GetInterpolatedTime (uint64_t item_index, uint64_t beginning_of_time_nanos, const LinuxPerfZeroTscConversion &tsc_conversion) const
	Calculate an interpolated timestamp in nanoseconds for the given item index.
bool	InRange (uint64_t item_index) const

Public Attributes
uint64_t	nanos
	The nanoseconds value for this range.
TSC	tsc
	The corresponding TSC value for this range.
NanosecondsRange *	next_range
	A nullable pointer to the next range.
uint64_t	items_count
	Number of trace items in this range.
uint64_t	first_item_index
	Index of the first trace item in this range.

Detailed Description

A structure that represents a maximal range of trace items associated to the same non-interpolated timestamps in nanoseconds.

Definition at line 83 of file DecodedThread.h.

Member Function Documentation

GetInterpolatedTime()

double DecodedThread::NanosecondsRange::GetInterpolatedTime	(	uint64_t	item_index,
		uint64_t	beginning_of_time_nanos,
		const LinuxPerfZeroTscConversion &	tsc_conversion ) const

Calculate an interpolated timestamp in nanoseconds for the given item index.

It's guaranteed that two different item indices will produce different interpolated values.

Parameters

[in]	item_index	The index of the item whose timestamp will be estimated. It has to be part of this range.
[in]	beginning_of_time_nanos	The timestamp at which tracing started.
[in]	tsc_conversion	The tsc -> nanos conversion utility

Returns

An interpolated timestamp value for the given trace item.

Definition at line 43 of file DecodedThread.cpp.

References first_item_index, items_count, nanos, next_range, lldb_private::LinuxPerfZeroTscConversion::ToNanos(), and tsc.

InRange()

bool DecodedThread::NanosecondsRange::InRange

(

uint64_t

item_index

)

const

Returns

true if and only if the given item_index is covered by this range.

Definition at line 38 of file DecodedThread.cpp.

References first_item_index, and items_count.

Member Data Documentation

first_item_index

uint64_t lldb_private::trace_intel_pt::DecodedThread::NanosecondsRange::first_item_index

Index of the first trace item in this range.

Definition at line 93 of file DecodedThread.h.

Referenced by GetInterpolatedTime(), and InRange().

items_count

uint64_t lldb_private::trace_intel_pt::DecodedThread::NanosecondsRange::items_count

Number of trace items in this range.

Definition at line 91 of file DecodedThread.h.

Referenced by GetInterpolatedTime(), and InRange().

nanos

uint64_t lldb_private::trace_intel_pt::DecodedThread::NanosecondsRange::nanos

The nanoseconds value for this range.

Definition at line 85 of file DecodedThread.h.

Referenced by GetInterpolatedTime().

next_range

NanosecondsRange* lldb_private::trace_intel_pt::DecodedThread::NanosecondsRange::next_range

A nullable pointer to the next range.

Definition at line 89 of file DecodedThread.h.

Referenced by GetInterpolatedTime().

tsc

TSC lldb_private::trace_intel_pt::DecodedThread::NanosecondsRange::tsc

The corresponding TSC value for this range.

Definition at line 87 of file DecodedThread.h.

Referenced by GetInterpolatedTime().

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The documentation for this struct was generated from the following files:

• DecodedThread.h
• DecodedThread.cpp