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bees: configurable log verbosity

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Log messages were already labelled with log levels, but there was no
way to filter by log level at run time.

Implement the filter inside the bees process so it can skip evaluation
of the BEESLOG* arguments if the log messages would not be emitted.

Fixes: https://github.com/Zygo/bees/issues/67

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell
2018-07-08 16:47:38 -04:00
parent b22db12390
commit 041ad717a5
3 changed files with 42 additions and 25 deletions
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13
src/bees.h
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@ -127,18 +127,18 @@ const int FLAGS_OPEN_FANOTIFY = O_RDWR | O_NOATIME | O_CLOEXEC | O_LARGEFILE;
// macros ----------------------------------------
#define BEESLOG(lv,x) do { Chatter c(lv, BeesNote::get_name()); c << x; } while (0)
#define BEESLOG(lv,x) do { if (lv < bees_log_level) { Chatter c(lv, BeesNote::get_name()); c << x; } } while (0)
#define BEESLOGTRACE(x) do { BEESLOG(LOG_DEBUG, x); BeesTracer::trace_now(); } while (0)
#define BEESTRACE(x) BeesTracer SRSLY_WTF_C(beesTracer_, __LINE__) ([&]() { BEESLOG(LOG_ERR, x); })
#define BEESTOOLONG(x) BeesTooLong SRSLY_WTF_C(beesTooLong_, __LINE__) ([&](ostream &_btl_os) { _btl_os << x; })
#define BEESNOTE(x) BeesNote SRSLY_WTF_C(beesNote_, __LINE__) ([&](ostream &_btl_os) { _btl_os << x; })
#define BEESLOGERR(x) BEESLOG(LOG_ERR, x)
#define BEESLOGWARN(x) BEESLOG(LOG_WARNING, x)
#define BEESLOGNOTE(x) BEESLOG(LOG_NOTICE, x)
#define BEESLOGINFO(x) BEESLOG(LOG_INFO, x)
#define BEESLOGDEBUG(x) BEESLOG(LOG_DEBUG, x)
#define BEESLOGERR(x) BEESLOG(LOG_ERR, x)
#define BEESLOGWARN(x) BEESLOG(LOG_WARNING, x)
#define BEESLOGNOTICE(x) BEESLOG(LOG_NOTICE, x)
#define BEESLOGINFO(x) BEESLOG(LOG_INFO, x)
#define BEESLOGDEBUG(x) BEESLOG(LOG_DEBUG, x)
#define BEESCOUNT(stat) do { \
BeesStats::s_global.add_count(#stat); \
@ -825,6 +825,7 @@ public:
};
// And now, a giant pile of extern declarations
extern int bees_log_level;
extern const char *BEES_VERSION;
string pretty(double d);
void bees_sync(int fd);