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#include <util/stream/output.h>
#include <util/stream/null.h>
#include <util/system/yassert.h>
#include <util/system/defaults.h>
#include <util/generic/singleton.h>
#include <util/generic/utility.h>
#if defined(_unix_)
#include <syslog.h>
#endif
#include "system.h"
#include "record.h"
#include "stream.h"
TSysLogBackend::TSysLogBackend(const char* ident, EFacility facility, int flags)
: Ident(ident)
, Facility(facility)
, Flags(flags)
{
#if defined(_unix_)
Y_ASSERT(TSYSLOG_LOCAL0 <= facility && facility <= TSYSLOG_LOCAL7);
static const int f2sf[] = {
LOG_LOCAL0,
LOG_LOCAL1,
LOG_LOCAL2,
LOG_LOCAL3,
LOG_LOCAL4,
LOG_LOCAL5,
LOG_LOCAL6,
LOG_LOCAL7};
int sysflags = LOG_NDELAY | LOG_PID;
if (flags & LogPerror) {
sysflags |= LOG_PERROR;
}
if (flags & LogCons) {
sysflags |= LOG_CONS;
}
openlog(Ident.data(), sysflags, f2sf[(size_t)facility]);
#endif
}
TSysLogBackend::~TSysLogBackend() {
#if defined(_unix_)
closelog();
#endif
}
void TSysLogBackend::WriteData(const TLogRecord& rec) {
#if defined(_unix_)
syslog(ELogPriority2SyslogPriority(rec.Priority), "%.*s", (int)rec.Len, rec.Data);
#else
Y_UNUSED(rec);
#endif
}
void TSysLogBackend::ReopenLog() {
}
int TSysLogBackend::ELogPriority2SyslogPriority(ELogPriority priority) {
#if defined(_unix_)
return Min(int(priority), (int)LOG_PRIMASK);
#else
// trivial conversion
return int(priority);
#endif
}
namespace {
class TSysLogInstance: public TLog {
public:
inline TSysLogInstance()
: TLog(MakeHolder<TStreamLogBackend>(&Cnull))
{
}
};
}
TLog& SysLogInstance() {
return *Singleton<TSysLogInstance>();
}
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