private void ApplySessionSelection()
{
foreach (ListViewItem item in sessionListView.Items)
{
Reader.Session ses = (Reader.Session)item.Tag;
ses.Visible = item.Checked;
}
}
public Record(DataFlags dataflags, ulong msgNum, DateTime time, ReaderThreadInfo threadInfo, Reader.Session session, string msg)
{
MsgNum = msgNum;
Time = time;
Thread = threadInfo.Thread;
ThreadName = threadInfo.ThreadName;
Level = threadInfo.Level;
Logger = threadInfo.Logger;
StackDepth = threadInfo.Depth;
MethodName = threadInfo.MethodName;
Caller = threadInfo.StackTop;
Session = session;
if ((dataflags & DataFlags.MethodEntry) != DataFlags.None)
{
// This is a method entry record. It always contains exactly one line of text.
IsEntry = true;
Lines = new string[] { string.Format("{{{0}: entered", MethodName.Name) };
}
else if ((dataflags & DataFlags.MethodExit) != DataFlags.None)
{
// Method exit records always contain exactly one line of text.
IsExit = true;
Lines = new string[] { string.Format("}}{0}: exiting", MethodName.Name) };
}
else
{
// The message text for this record may contain newlines. Split the
// message into one or more lines.
Lines = msg.Split(_splitArg);
if (Lines.Length > 1)
{
// It's common for a carriage return to exist at the
// end of each line. Remove them.
for (int i = 0; i < Lines.Length; ++i)
{
Lines[i] = Lines[i].TrimEnd('\r');
}
// It's common for the last line to be empty. If so, remove it.
if (Lines.Last().Trim() == string.Empty)
{
Lines = Lines.Take(Lines.Length - 1).ToArray();
}
}
IsCollapsed = Lines.Length > 1 && !Settings.Default.ExpandNewlines;
}
// Each line also has a bool to indicate if it is bookmarked
// and a row index it may map to.
IsBookmarked = new bool[Lines.Length];
RowIndices = new int[Lines.Length];
}
// This constructs a missing MethodEntry Record from the given ReaderStackEntry.
// This is for MethodEntry records lost due to wrapping.
public Record(ReaderThreadInfo threadInfo, ExplicitStackEntry methodEntry, Reader.Session session)
{
IsEntry = true;
//IsExit = false;
MsgNum = 0; // TBD
Time = DateTime.MinValue; // TBD
Index = 0; // TBD
Thread = threadInfo.Thread;
ThreadName = threadInfo.ThreadName;
Level = methodEntry.Level;
Logger = methodEntry.Logger;
StackDepth = methodEntry.Depth;
MethodName = methodEntry.Method;
Lines = new string[] { string.Format("{{{0}: entered (replaces record lost due to wrapping)", MethodName.Name) };
Session = session;
// Each record also has a bool to indicate if it is bookmarked
// and a row index it may map to.
IsBookmarked = new bool[1];
RowIndices = new int[1];
}
private void sessionCombo_SelectedIndexChanged(object sender, EventArgs e)
{
Reader.Session session = (Reader.Session)sessionCombo.SelectedItem;
long sessionSize = 0;
double sessionPercent = 0;
if (session == SessionObjects.AllSessionObjects.Last())
{
sessionSize = _reader.Size - session.SessionStartPos;
}
else
{
Reader.Session nextSession = SessionObjects.AllSessionObjects[session.Index + 1];
sessionSize = nextSession.SessionStartPos - session.SessionStartPos;
}
sessionPercent = (double)sessionSize / (double)_reader.Size;
string sizeMsg = string.Format("{0:N0} ({1:P1} of file)", sessionSize, sessionPercent);
sessionListView.Items.Clear();
sessionListView.Items.Add(new ListViewItem(new string[] { "Creation time (UTC)", session.CreationTimeUtc.ToString() + " UTC" }));
sessionListView.Items.Add(new ListViewItem(new string[] { "Creation time (logger's TZ)", session.CreationTimeLoggersTZ.ToString() + " " + session.LoggersTimeZone }));
sessionListView.Items.Add(new ListViewItem(new string[] { "Creation time (local TZ)", ToLocalTZ(session.CreationTimeUtc) }));
sessionListView.Items.Add(new ListViewItem(new string[] { "Last timestamp", ToLocalTZ(session.LastRecordTimeUtc) }));
sessionListView.Items.Add(new ListViewItem(new string[] { "Elapsed time", (session.LastRecordTimeUtc - session.CreationTimeUtc).ToString() }));
sessionListView.Items.Add(new ListViewItem(new string[] { "Circular logging started", session.InCircularPart.ToString() }));
sessionListView.Items.Add(new ListViewItem(new string[] { "Last record number", session.LastRecordNum.ToString("N0") }));
sessionListView.Items.Add(new ListViewItem(new string[] { "Record count", session.RecordsRead.ToString("N0") }));
sessionListView.Items.Add(new ListViewItem(new string[] { "Records lost by wrapping", (session.LastRecordNum - session.RecordsRead).ToString("N0") }));
sessionListView.Items.Add(new ListViewItem(new string[] { "Max session size (KB)", session.MaxKb.ToString("N0") }));
sessionListView.Items.Add(new ListViewItem(new string[] { "Session size (bytes)", sizeMsg }));
sessionListView.Items.Add(new ListViewItem(new string[] { "Loggers assembly version", session.LoggersAssemblyVersion }));
sessionListView.Items.Add(new ListViewItem(new string[] { "GUID", session.FileGuid.ToString() }));
sessionNameCol.AutoResize(ColumnHeaderAutoResizeStyle.ColumnContent);
sessionValueCol.AutoResize(ColumnHeaderAutoResizeStyle.ColumnContent);
}
// This generates replacements for missing entry/exit records that were lost when
// the log wrapped, but whose counterparts were not lost.
// Called when we read the first line for this thread in the circular part of the log.
// The thread's true call stack (logged with each thread's first record in each block)
// was just read from the log and is passed via the actualStack parameter.
internal void MakeMissingRecords(ExplicitStackEntry[] actualStack, List <Record> generatedRecs, Reader.Session session)
{
// We only do this once per thread, for the first record in the circular log for each
// thread. If MissingEntryRecords is not null, we already did it.
if (!_missingRecsGenerated)
{
_missingRecsGenerated = true;
var MissingEntryRecords = new List <Record>();
// StackTop is the "top" entry in the stack determined by
// pushing MethodEntry records and then popping
// them off when MethodExit records are found in the log.
// That stack becomes inaccurate
// due to records being lost when the log wraps.
// However, the true stack for this thread was explicitly
// recorded in the circular part of the log and has now been
// passed to this method as actualStack.
// By comparing the items in the two stacks, we can generate
// the missing MethodEntry records (for items that are in
// actualStack but not in the StackTop stack) and the missing
// MethodExit records (for items that are in the StackTop stack
// but not the actualStack). We also "fix" the StackTop stack.
// this.Depth was set to actualStack.Length before this method was called.
// If this.Depth is 0, actualStack is null.
// The top stack entry comes first in actualStack.
int actualStackIndex = 0;
// The key property of each stack entry is the line number where
// each method call starts in the log. For example, suppose the StackTop
// stack and the actualStack contain entries with the
// following line numbers.
//
// StackTop: 400 300 200 100
// actualStack: 600 500 100
//
// In the example, the StackTop calls at 400, 300, and 200 must have exited
// in the lost part of the log (because they don't appear in actualStack),
// so we generate MethodExit records to replace those that were lost.
// We also pop the entries for 400, 300, and 200 off the StackTop stack.
//
// The calls at 600 and 500 occurred in the lost part of the log and have
// not exited yet, so we generate MethodEntry records to replace those lost
// records. We also push the generated MethodEntry records onto the
// StackTop stack.
//
// The method call at line 100 occurred before the lost part of the log and
// still has not exited (because it appears in both stacks).
//
// All the generated MethodExit records will be inserted before all the
// generated MethodEntry records, and all pops must be done before all pushes.
// We start at the top of each stack and loop until all entries are examined or
// we find the point where both stacks match.
while (StackTop != null || actualStackIndex < Depth)
{
// At least one of the stacks is not exhausted.
if (StackTop == null)
{
// Only the actualStack has entries remaining, all of which represent
// methods whose method entry records were lost.
MissingEntryRecords.Add(new Record(this, actualStack[actualStackIndex], session));
++actualStackIndex;
}
else if (actualStackIndex == Depth)
{
// Only the StackTop stack has entries remaining, all of which represent
// methods whose exits were lost.
generatedRecs.Add(new Record(StackTop));
Pop();
}
else if (StackTop.MsgNum > actualStack[actualStackIndex].EntryLineNum)
{
generatedRecs.Add(new Record(StackTop));
Pop();
}
else if (StackTop.MsgNum < actualStack[actualStackIndex].EntryLineNum)
{
MissingEntryRecords.Add(new Record(this, actualStack[actualStackIndex], session));
++actualStackIndex;
}
else
{
// Once they are equal, all others will be equal.
break;
}
}
// Now do the Pushes for the generated entry records.
MissingEntryRecords.Reverse();
foreach (Record entryRec in MissingEntryRecords)
{
entryRec.Caller = StackTop;
Push(entryRec);
}
generatedRecs.AddRange(MissingEntryRecords);
}
}