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#pragma once
#include <AK/kstdio.h>
#ifdef USERLAND
# include <AK/ScopedValueRollback.h>
# include <AK/StringView.h>
# include <errno.h>
# include <unistd.h>
#endif
namespace AK {
class String;
class StringView;
class LogStream {
public:
LogStream()
#ifdef USERLAND
: m_errno_restorer(errno)
#endif
{
}
virtual ~LogStream() {}
virtual void write(const char*, int) const = 0;
private:
#ifdef USERLAND
ScopedValueRollback<int> m_errno_restorer;
#endif
};
class DebugLogStream final : public LogStream {
public:
DebugLogStream() {}
virtual ~DebugLogStream() override
{
char newline = '\n';
write(&newline, 1);
}
virtual void write(const char* characters, int length) const override
{
dbgputstr(characters, length);
}
};
inline const LogStream& operator<<(const LogStream& stream, const char* value)
{
int length = 0;
const char* p = value;
while (*(p++))
++length;
stream.write(value, length);
return stream;
}
const LogStream& operator<<(const LogStream&, const String&);
const LogStream& operator<<(const LogStream&, const StringView&);
const LogStream& operator<<(const LogStream&, int);
const LogStream& operator<<(const LogStream&, unsigned);
const LogStream& operator<<(const LogStream&, const void*);
inline const LogStream& operator<<(const LogStream& stream, char value)
{
stream.write(&value, 1);
return stream;
}
inline const LogStream& operator<<(const LogStream& stream, bool value)
{
return stream << (value ? "true" : "false");
}
DebugLogStream dbg();
}
using AK::dbg;
using AK::LogStream;
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