public static void SetFunc(LogWriterFunc func)
{
if (func == null)
{
throw new ArgumentNullException(nameof(func));
}
if (isFuncSet)
{
throw new InvalidOperationException("Log writer function can only be set once.");
}
// If using one of the default functions, pass the unmanged function
// pointer instead of wrapping the managed version.
if (func == Default)
{
g_log_set_writer_func(g_log_writer_default, IntPtr.Zero, null);
}
else if (func == Journald)
{
g_log_set_writer_func(g_log_writer_journald, IntPtr.Zero, null);
}
else if (func == StandardStreams)
{
g_log_set_writer_func(g_log_writer_standard_streams, IntPtr.Zero, null);
}
else
{
var(func_, userDataFree_, userData_) = UnmanagedLogWriterFuncFactory.CreateNotifyDelegate(func);
g_log_set_writer_func(func_, userData_, userDataFree_);
}
isFuncSet = true;
}
public LinuxServiceLogWriter(LogWriterFunc debugFormat = null, LogWriterFunc infoFormat = null, LogWriterFunc warnFormat = null, LogWriterFunc errorFormat = null, LogWriterFunc fatalFormat = null)
{
_debugFormat = debugFormat;
_infoFormat = infoFormat;
_warnFormat = warnFormat;
_errorFormat = errorFormat;
_fatalFormat = fatalFormat;
}
public LinuxServiceLogWriter(LogWriterFunc debugFormat = null, LogWriterFunc infoFormat = null, LogWriterFunc warnFormat = null, LogWriterFunc errorFormat = null, LogWriterFunc fatalFormat = null)
{
_debugFormat = debugFormat;
_infoFormat = infoFormat;
_warnFormat = warnFormat;
_errorFormat = errorFormat;
_fatalFormat = fatalFormat;
}
public static ValueTuple <UnmanagedLogWriterFunc, IntPtr> CreateDelegate(LogWriterFunc func, bool isAsync = false)
{
var data = new UnmanagedLogWriterFuncData {
IsAsync = isAsync,
Func = func,
UnmanagedFunc = UnmanagedFunc,
UnmanagedNotify = null,
};
var gcHandle = GCHandle.Alloc(data);
return(data.UnmanagedFunc, (IntPtr)gcHandle);
}
private static void LogFormat(LogWriterFunc logFunc, string format, params object[] args)
{
if (logFunc != null)
{
try
{
logFunc(format, args);
}
catch
{
}
}
}
private static void LogFormat(LogWriterFunc logFunc, string format, params object[] args)
{
if (logFunc != null)
{
try
{
logFunc(format, args);
}
catch
{
}
}
}
public static ValueTuple <UnmanagedLogWriterFunc, UnmanagedDestroyNotify, IntPtr> CreateNotifyDelegate(LogWriterFunc func)
{
var data = new UnmanagedLogWriterFuncData {
IsAsync = false,
Func = func,
UnmanagedFunc = UnmanagedFunc,
UnmanagedNotify = UnmanagedNotify,
};
var gcHandle = GCHandle.Alloc(data);
return(data.UnmanagedFunc, data.UnmanagedNotify, (IntPtr)gcHandle);
}