1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
#pragma once
#include <ostream>
#include <mutex>
#include "LogStreamBuf.h"
namespace applog
{
/**
* greebo: A LogStream is a specialised std::ostream making
* use of a customised std::streambuf (LogStreamBuf).
*
* Several application-wide LogStream instances exist, one for
* each LogLevel. The underlying LogStreamBuf will write
* all output to the LogWriter singleton, which in turn
* dispatches the text to the various LogDevices.
*
* Application code needs to include the itextstream.h header
* and use the rMessage(), rWarning() and rError() shortcuts
* to stream data to the log.
*/
class LogStream :
public std::ostream
{
private:
static std::mutex _streamLock;
public:
LogStream(LogLevel logLevel);
virtual ~LogStream();
// Gets called immediately after entering main()
// Sets up the stream references for rMessage(), redirects std::cout, etc.
static void InitialiseStreams(ILogWriter& logWriter);
// Hands back the original streambuf to std::cout
static void ShutdownStreams();
// The one and only lock for logging
static std::mutex& GetStreamLock();
};
} // namespace applog
|
