public void AcquireTimeOut()
{
_writer.WriteLine("Acquire Lock 1");
var lock1 = LockFile.Acquire("test.lock");
_writer.WriteLine("Acquire Lock 2");
Assert.Throws <TimeoutException>(() => LockFile.Acquire("test.lock", TimeSpan.FromSeconds(1)));
}
public void AquireTimeOut()
{
Console.WriteLine("Acquire Lock 1");
var lock1 = LockFile.Acquire("test.lock");
Console.WriteLine("Acquire Lock 2");
var lock2 = LockFile.Acquire("test.lock", TimeSpan.FromSeconds(1));
}
public void Flush()
{
if (_isFlushing || _buffer.IsEmpty)
{
return;
}
// Only check if appending file and size hasn't been checked in 2 minutes
if ((_append || !_firstWrite) && DateTime.UtcNow.Subtract(_lastSizeCheck).TotalSeconds > 120)
{
CheckFileSize();
}
if (_isFlushing || _buffer.IsEmpty)
{
return;
}
try {
_isFlushing = true;
Run.WithRetries(() => {
using (var logFileLock = LockFile.Acquire(FilePath + ".lock", TimeSpan.FromMilliseconds(500))) {
bool append = _append || !_firstWrite;
_firstWrite = false;
try {
using (var writer = GetWriter(append)) {
LogEntry entry;
while (_buffer.TryDequeue(out entry))
{
if (entry != null && entry.LogLevel >= MinimumLogLevel)
{
writer.Value.WriteLine($"{FormatLongDate(entry.Timestamp)} {entry.LogLevel.ToString().PadRight(5)} {entry.Message}");
}
}
}
} catch (Exception ex) {
System.Diagnostics.Trace.TraceError("Unable flush the logs. " + ex.Message);
LogEntry entry;
while (_buffer.TryDequeue(out entry))
{
System.Diagnostics.Trace.WriteLine(entry);
}
}
}
});
} catch (Exception ex) {
System.Diagnostics.Trace.WriteLine("Exceptionless: Error flushing log contents to disk: {0}", ex.Message);
} finally {
_isFlushing = false;
}
}
internal void CheckFileSize()
{
if (_isCheckingFileSize)
{
return;
}
_isCheckingFileSize = true;
_lastSizeCheck = DateTime.UtcNow;
if (GetFileSize() <= FIVE_MB)
{
_isCheckingFileSize = false;
return;
}
// get the last X lines from the current file
string lastLines = String.Empty;
try {
Run.WithRetries(() => {
using (var logFileLock = LockFile.Acquire(FilePath + ".lock", TimeSpan.FromMilliseconds(500))) {
try {
lastLines = GetLastLinesFromFile(FilePath);
} catch {}
}
});
} catch (Exception ex) {
System.Diagnostics.Trace.WriteLine("Exceptionless: Error getting last X lines from the log file: {0}", ex.Message);
}
if (String.IsNullOrEmpty(lastLines))
{
_isCheckingFileSize = false;
return;
}
// overwrite the log file and initialize it with the last X lines it had
try {
Run.WithRetries(() => {
using (var logFileLock = LockFile.Acquire(FilePath + ".lock", TimeSpan.FromMilliseconds(500))) {
using (var writer = GetWriter(true))
writer.Value.Write(lastLines);
}
});
} catch (Exception ex) {
System.Diagnostics.Trace.WriteLine("Exceptionless: Error rewriting the log file after trimming it: {0}", ex.Message);
}
_isCheckingFileSize = false;
}
public void Flush()
{
if (_isFlushing || _buffer.Count == 0)
{
return;
}
if (DateTime.Now.Subtract(_lastSizeCheck).TotalSeconds > 120)
{
CheckFileSize();
}
try {
_isFlushing = true;
Run.WithRetries(() => {
using (var logFileLock = LockFile.Acquire(FilePath + ".lock", TimeSpan.FromMilliseconds(500))) {
bool append = _append || !_firstWrite;
_firstWrite = false;
try {
using (var writer = GetWriter(append)) {
LogEntry entry;
while (_buffer.TryDequeue(out entry))
{
if (entry != null && entry.LogLevel >= MinimumLogLevel)
{
writer.Value.WriteLine(entry.Message);
}
}
}
} catch (Exception ex) {
System.Diagnostics.Trace.TraceError("Unable flush the logs. " + ex.Message);
LogEntry entry;
while (_buffer.TryDequeue(out entry))
{
System.Diagnostics.Trace.WriteLine(entry);
}
}
}
});
} catch (Exception ex) {
System.Diagnostics.Trace.WriteLine("Exceptionless: Error flushing log contents to disk: {0}", ex.Message);
} finally {
_isFlushing = false;
}
}
public void Acquire()
{
var thread1 = new Thread(s => {
_writer.WriteLine("[Thread: {0}] Lock 1 Entry", Thread.CurrentThread.ManagedThreadId);
using (var lock1 = LockFile.Acquire("Acquire.lock")) {
_writer.WriteLine("[Thread: {0}] Lock 1", Thread.CurrentThread.ManagedThreadId);
Thread.Sleep(TimeSpan.FromSeconds(2));
}
});
thread1.Start();
var thread2 = new Thread(s => {
_writer.WriteLine("[Thread: {0}] Lock 2 Entry", Thread.CurrentThread.ManagedThreadId);
using (var lock2 = LockFile.Acquire("Acquire.lock")) {
_writer.WriteLine("[Thread: {0}] Lock 2", Thread.CurrentThread.ManagedThreadId);
}
});
thread2.Start();
Thread.Sleep(TimeSpan.FromSeconds(5));
}
