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// log.h
#pragma once
class Nullstream {
public:
Nullstream& operator<<(const char *) { return *this; }
Nullstream& operator<<(int) { return *this; }
Nullstream& operator<<(unsigned long) { return *this; }
Nullstream& operator<<(unsigned) { return *this; }
Nullstream& operator<<(double) { return *this; }
Nullstream& operator<<(void *) { return *this; }
Nullstream& operator<<(long long) { return *this; }
Nullstream& operator<<(unsigned long long) { return *this; }
Nullstream& operator<<(const string&) { return *this; }
Nullstream& operator<< (ostream& ( *endl )(ostream&)) { return *this; }
Nullstream& operator<< (ios_base& (*hex)(ios_base&)) { return *this; }
};
inline Nullstream& endl ( Nullstream& os ) { }
extern Nullstream nullstream;
#define LOGIT { lock lk(mutex); cout << x; return *this; }
class Logstream {
static boost::mutex mutex;
public:
Logstream& operator<<(const char *x) LOGIT
Logstream& operator<<(char x) LOGIT
Logstream& operator<<(int x) LOGIT
Logstream& operator<<(unsigned long x) LOGIT
Logstream& operator<<(unsigned x) LOGIT
Logstream& operator<<(double x) LOGIT
Logstream& operator<<(void *x) LOGIT
Logstream& operator<<(long long x) LOGIT
Logstream& operator<<(unsigned long long x) LOGIT
Logstream& operator<<(const string& x) LOGIT
Logstream& operator<< (ostream& ( *_endl )(ostream&)) { lock lk(mutex); cout << _endl; return *this; }
Logstream& operator<< (ios_base& (*_hex)(ios_base&)) { lock lk(mutex); cout << _hex; return *this; }
Logstream& prolog() {
lock lk(mutex);
time_t t;
time(&t);
string now(ctime(&t),0,20);
cout << "~ " << now;
if( client )
cout << curNs << ' ';
return *this;
}
};
inline Logstream& endl ( Logstream& os ) { }
extern Logstream logstream;
// not threadsafe
inline Logstream& problem() { return logstream.prolog(); }
#define cout logstream
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