107 lines
2.2 KiB
C#
107 lines
2.2 KiB
C#
|
//
|
||
|
|
// Helper for Console to allow indirect access to `stdout` using NSLog
|
||
|
|
//
|
||
|
|
// Authors:
|
||
|
|
// Sebastien Pouliot <sebastien@xamarin.com>
|
||
|
|
//
|
||
|
|
// Copyright 2012-2014 Xamarin Inc. All rights reserved.
|
||
|
|
//
|
||
|
|
|
||
|
|
#if FULL_AOT_RUNTIME
|
||
|
|
|
||
|
|
using System;
|
||
|
|
using System.IO;
|
||
|
|
using System.Runtime.InteropServices;
|
||
|
|
using System.Text;
|
||
|
|
|
||
|
|
namespace System {
|
||
|
|
|
||
|
|
public static partial class Console {
|
||
|
|
|
||
|
|
class NSLogWriter : TextWriter {
|
||
|
|
[DllImport ("__Internal", CharSet=CharSet.Unicode)]
|
||
|
|
extern static void monotouch_log (string s);
|
||
|
|
|
||
|
|
[DllImport ("/usr/lib/libSystem.dylib")]
|
||
|
|
extern static /* ssize_t */ IntPtr write (int fd, byte [] buffer, /* size_t */ IntPtr n);
|
||
|
|
|
||
|
|
StringBuilder sb;
|
||
|
|
|
||
|
|
public NSLogWriter ()
|
||
|
|
{
|
||
|
|
sb = new StringBuilder ();
|
||
|
|
}
|
||
|
|
|
||
|
|
public override System.Text.Encoding Encoding {
|
||
|
|
get { return System.Text.Encoding.UTF8; }
|
||
|
|
}
|
||
|
|
|
||
|
|
static void direct_write_to_stdout (string s)
|
||
|
|
{
|
||
|
|
byte [] b = Encoding.Default.GetBytes (s);
|
||
|
|
var len = (IntPtr) b.Length;
|
||
|
|
while ((int) write (1, b, len) == -1 && Marshal.GetLastWin32Error () == /* EINTR*/ 4)
|
||
|
|
;
|
||
|
|
}
|
||
|
|
|
||
|
|
public override void Flush ()
|
||
|
|
{
|
||
|
|
string s = sb.ToString ();
|
||
|
|
try {
|
||
|
|
monotouch_log (s);
|
||
|
|
}
|
||
|
|
catch (Exception) {
|
||
|
|
try {
|
||
|
|
direct_write_to_stdout (s);
|
||
|
|
direct_write_to_stdout (Environment.NewLine);
|
||
|
|
} catch (Exception){}
|
||
|
|
}
|
||
|
|
sb.Length = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// minimum to override - see http://msdn.microsoft.com/en-us/library/system.io.textwriter.aspx
|
||
|
|
public override void Write (char value)
|
||
|
|
{
|
||
|
|
try {
|
||
|
|
sb.Append (value);
|
||
|
|
}
|
||
|
|
catch (Exception) {
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// optimization (to avoid concatening chars)
|
||
|
|
public override void Write (string value)
|
||
|
|
{
|
||
|
|
try {
|
||
|
|
sb.Append (value);
|
||
|
|
if (value != null && value.Length >= CoreNewLine.Length && EndsWithNewLine (value))
|
||
|
|
Flush ();
|
||
|
|
}
|
||
|
|
catch (Exception) {
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
bool EndsWithNewLine (string value)
|
||
|
|
{
|
||
|
|
for (int i = 0, v = value.Length - CoreNewLine.Length; i < CoreNewLine.Length; ++i, ++v) {
|
||
|
|
if (value [v] != CoreNewLine [i])
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
public override void WriteLine ()
|
||
|
|
{
|
||
|
|
try {
|
||
|
|
Flush ();
|
||
|
|
}
|
||
|
|
catch (Exception) {
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|